JP2014139774A - System for supporting proposal of plant facility maintenance plan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To customize an optimal maintenance execution time for each device.SOLUTION: A system for supporting proposal of a plant facility maintenance plan includes: a standard plan material creation unit 112 for creating standard plan materials on the basis of specification information and operation history information on each device; an inspection/update time setting unit 114 for setting for each device an inspection/update time on the basis of usage record information and update record information on the device; an inspection/update time re-setting unit 116 for re-setting for each device the inspection/update time on the basis of inspection history information and work history information on the device; a similar device information extraction unit 118 for extracting any of the inspection history information and the work history information on a similar device in a different plant facility; a plan material revision unit 120 for revising the inspection/update time in the standard plan materials on the basis of the inspection/update time reset for each device by the inspection/update time re-setting unit and any of the inspection history information and the work history information extracted by the similar device information extraction unit; and a storage unit 30 for storing the above-mentioned information on each device in association with the device and the similar device.

Description

  The present invention relates to a proposal support system for a plant equipment maintenance plan in order to enhance long-term after-sales service such as maintenance of plant equipment such as thermal power generation equipment.

  In order to ensure the safety of the plant and to fully demonstrate its functions, it is necessary to periodically maintain the plant equipment. In the maintenance, various devices, equipment, and components provided in the facility are inspected, and these devices, equipment, and components are appropriately replaced according to the result of the inspection. The plant equipment that is used for a long period of time is increasing, and in order to ensure that its maintenance management is low-cost and that no breakdowns occur, proposals for long-term equipment maintenance plans that respond to customer requests have been made. is necessary.

  As a conventional technique related to maintenance management of various equipments provided in plant facilities, Patent Document 1 describes a plant that predicts the time of equipment damage, performance degradation, and function stoppage and objectively and quantitatively determines the maintenance management time. An apparatus life diagnosis / maintenance management method and apparatus are disclosed. In addition, Patent Document 2 describes a plant for planning a plant maintenance plan from remaining life data as a conventional technique for accurately evaluating the cost effectiveness of maintenance of plant equipment and optimizing decision making regarding maintenance. A maintenance optimization system is disclosed.

Japanese Patent No. 4058289 Japanese Patent No. 3634818

  However, plant facilities such as thermal power generation facilities are composed of a wide variety of devices and parts, and these devices have different usage frequencies, durability levels, and lifetimes. is there. For this reason, when proposing a long-term facility maintenance plan for a plant to a customer, it is necessary to provide update information and maintenance information at an appropriate update time for each of these devices. In other words, it is necessary to propose a long-term facility maintenance plan that is appropriately customized for each plant facility owned by the customer.

  Further, in a large plant such as a boiler for thermal power generation, the contents of the constituent devices are different for each plant unit, and in the constituent devices having similar functions, the structure, names, and the like are often different. For this reason, plant history management is performed on a unit-by-unit basis, and it has been necessary to rely on human resources when attempting to manage information on a large number of similar units having devices having different structures and names. As a result, it took an enormous amount of time to horizontally deploy trouble cases to similar units, which was inefficient.

  In other words, it takes time to formulate a long-term plan reflecting the past history of construction, and in order to examine the long-term plan each time, the proposals for necessary inspections and deterioration renewal construction have been insufficient. For this reason, horizontal deployment of information such as non-conformity of similar plant units is not efficiently implemented, and due to responses on the basis of the person in charge, the proposal time and its contents vary, and an appropriate long-term facility maintenance plan Could not be proposed. The systems disclosed in Patent Documents 1 and 2 have not been able to derive the optimal maintenance execution time for appropriately updating each device by reflecting the information of the inspection / update results of similar plants.

  The present invention has been made in view of the above-mentioned problems of the conventional plant maintenance management system, and is new and improved capable of customizing the optimal maintenance execution time for each device by reflecting information of similar plants. It is an object to provide a proposal support system for a planned plant equipment maintenance plan.

  One aspect of the present invention is a plant facility maintenance plan suggestion support system that creates plant facility maintenance work plan data, and is based on at least the specification information and operation history information of each device provided in the plant facility. A standard plan data creation unit that creates standard plan data as a reference for the plan data, and an inspection / update time setting for each device based on the use record information and update record information of each device. An update time setting unit, an inspection / update time resetting unit that re-evaluates and resets the inspection / update time of each device based on the inspection history information and construction history information of each device, and others Extract at least one of inspection history information and construction history information of similar devices having the same function and at least one of the structure and name of each device provided in the plant facility Any one of at least inspection history information and construction history information extracted by the similar device information extraction unit, the inspection / update time reset for each device by the update time resetting unit, and the similar device information extraction unit A plan document revision unit for revising the inspection / update timing of the standard plan document based on the information, and at least the specification information, the operation history information, the use record information, the update record information, and the test record of each device. A storage unit that stores information, the construction history information, and at least the inspection history information and the construction history information of the similar devices in association with the devices and the similar devices, respectively. It relates to a proposal support system for plant equipment maintenance plans.

  According to one aspect of the present invention, it is possible to efficiently create plan data in which the optimal maintenance execution time is customized for each device of the proposed plant by reflecting information on the proposed plant and similar plant of the equipment maintenance plan.

  At this time, in one aspect of the present invention, the inspection / update time setting unit formulates an update record distribution based on past update record information for devices with a large update record, and for devices with a small update record, Establishing a life distribution based on public information and past inspection results regarding the device, calculating a specific life obtained from a life controlling factor of the device having a large update record and a device having a small update record, the update record distribution, The inspection / update time may be formulated based on the life distribution and the specific life.

  In this way, it is possible to formulate an appropriate inspection / updating time for each device based on the update results of each device provided in the proposed plant for the facility maintenance plan.

  Moreover, in one aspect of the present invention, the inspection / update time resetting unit creates a database for each device of the history information that is the inspection history information and the construction history information of each device of the plant facility, Based on the newly acquired inspection result information, by re-evaluating the deterioration rate of each device, the inspection / update time may be reviewed and the inspection / update time described in the standard plan document may be corrected. Good.

  In this way, based on the newly acquired inspection result information on the inspection / update timing of each device provided in the proposed plant for the equipment maintenance plan, the appropriate inspection / update timing is corrected for each device. Reflecting the latest inspection results, it is possible to formulate a more appropriate inspection and renewal time.

  Further, in one aspect of the present invention, the similar device information extraction unit divides the function of each device into the functions that each device actually operates, and then sets the usage conditions of each device to medium. It is good also as dividing into a division and making it common code, and memorize | storing in the said memory | storage part.

  In this way, information on each device provided in the plant to be proposed for the equipment maintenance plan and similar plant is encoded and stored according to the function of each device, so that various information on each device provided in the similar plant is also reflected. It is possible to efficiently create more suitable planning materials.

  Moreover, in one aspect of the present invention, the storage unit includes at least the specification information, the operation history information, the use record information, the update record information, the inspection record information, and the construction record information of each device, It is good also as being a medical chart system which unifies and manages at least the inspection history information and the construction history information of the similar equipment for each plant facility.

  If it does in this way, it will become possible to detect various data concerning a proposal object plant of an equipment maintenance plan and a similar plant efficiently. For this reason, by preparing planning materials that reflect the inspection and update information of each equipment in the target plant of the equipment maintenance plan and similar plants, it is possible to anticipate more appropriate inspection and update times and anticipate customer needs in advance. Service proposals can be made.

  Moreover, in one aspect of the present invention, the plan material revision unit further includes a degradation mode extraction unit that extracts a degradation mode for each material used for the component equipment of the plant facility based on the design information of the plant facility. Is based on a predicted life value obtained by adding the deterioration mode with a predetermined weight for each deterioration factor when neither the inspection history information nor the construction history information is extracted by the similar device information extraction unit. Thus, the inspection / update timing of the standard plan document may be revised.

  In this way, it is possible to make an efficient long-term plan based on the remaining life of the material used for the component equipment of the plant facility. Therefore, the revision of the above-mentioned standard plan document inspection / update timing can be extended and applied even when similar equipment information does not exist (for example, new models or products of other companies), and high-quality service proposals can be made. it can.

  In one aspect of the present invention, the deterioration mode is stored in the storage unit as past results together with a combination condition of deterioration factors corresponding to the deterioration mode, and the plan document revision unit includes the target plant design information. When there is a deterioration mode in the storage unit that matches the combination condition of deterioration factors obtained based on the above, the life prediction value may be obtained based on the weighting factor associated with the deterioration mode.

  In this way, when there is a degradation mode that matches the combination of degradation factors as the past performance, the weighting coefficient used in the past performance is used, so that the accuracy can be reduced with a small amount of calculation. A good lifespan evaluation can be performed.

  In one aspect of the present invention, the deterioration mode is stored in the storage unit as past results together with a combination condition of deterioration factors corresponding to the deterioration mode, and the plan document revision unit includes the target plant design information. If a degradation mode that partially matches the degradation factor combination condition obtained based on the degradation factor combination condition exists in the storage unit, the degradation factor combination condition closest to the degradation factor combination condition is associated with the degradation mode. It is good also as calculating | requiring a lifetime prediction value based on the said weighting coefficient.

  In this case, when there are a plurality of deterioration modes having the combination conditions of the closest deterioration factors, the plan data revision unit weights the previous period associated with the deterioration mode that can obtain a life prediction value with a smaller relative error. It is good also as calculating | requiring a lifetime prediction value based on a coefficient.

  In this way, even when the deterioration factors do not partially match, the evaluation is performed with a small amount of calculation by using the weighting coefficient associated with the deterioration mode having a high degree of coincidence. Can do.

  In one aspect of the present invention, the deterioration mode is stored in the storage unit as past results together with a combination condition of deterioration factors corresponding to the deterioration mode, and the plan document revision unit includes the target plant design information. In the case where there is no deterioration mode in the storage unit that matches the combination condition of deterioration factors obtained based on the above, the life prediction value may be obtained based on the weighting coefficient calculated based on the target plant design information. Good.

  In this way, when there is no past record, the life evaluation value can be obtained under a reliable weighting coefficient based on the specifications included in the target plant design information.

  Further, another aspect of the present invention is a plant facility maintenance plan proposal support method for creating plant facility maintenance work plan data, at least in the specification information and operation history information of each device provided in the plant facility. A step of creating a standard plan document serving as a basis for the plan document based on the step of setting the inspection / update timing of each device for each device based on the use record information and update record information of each device; Based on the inspection history information and construction history information of each device, the step of re-evaluating and resetting the inspection / update time of each device for each device, and the function of each device provided in other plant facilities, A process of extracting at least one of inspection history information and construction history information of similar devices having the same at least one of the structure and name, and the update time resetting unit for each device Revising the inspection / update timing of the standard plan document based on the set inspection / update timing and at least one of the inspection history information and the construction history information extracted by the similar equipment information extraction unit; , At least the specification information of each device, the operation history information, the use record information, the update record information, the inspection history information, and the construction history information, and at least the inspection history information and the construction history of the similar device And a method of storing information in association with each of the devices and the similar devices, respectively.

  Further, in one aspect of the present invention, when neither the inspection history information nor the construction history information of the similar equipment can be extracted, the plant equipment is used as a constituent equipment of the plant equipment based on the design information of the plant equipment. The inspection / update timing of the standard plan data is revised based on the process of extracting the deterioration mode for each material to be processed and the life prediction value obtained by adding the deterioration mode with a predetermined weight for each deterioration factor. It is good also as providing a process.

  As described above, according to the present invention, it is possible to efficiently create a plan document in which a suitable inspection / update time is customized for each device of the proposed target plant by reflecting information on the proposed target plant and similar plant of the equipment maintenance plan. Since it can be created, after-sales service can be strengthened.

It is a figure which shows an example of the equipment maintenance plan material produced in 1st Embodiment of the proposal assistance system of the plant equipment maintenance plan of this invention. 1 is an overall configuration diagram of a proposal support system for a plant equipment maintenance plan according to a first embodiment of the present invention. It is a block diagram which shows the electric constitution of the information processing apparatus which concerns on the proposal assistance system of the plant equipment maintenance plan of 1st Embodiment. It is a figure which shows the flow of the proposal method which concerns on the proposal assistance system of the plant equipment maintenance plan of 1st Embodiment. It is a figure explaining the whole flow of the proposal method concerning the proposal support system of the plant equipment maintenance plan of a 1st embodiment. It is a figure which shows the setting flow of the test | inspection and update time of the proposal method which concerns on the proposal assistance system of the plant equipment maintenance plan of 1st Embodiment. It is a figure explaining the logic of the setting flow of the inspection and update time of the proposal method which concerns on the proposal support system of the plant equipment maintenance plan of 1st Embodiment. It is a figure which shows the reset flow of the test | inspection and update time of the proposal method which concerns on the proposal assistance system of the plant equipment maintenance plan of 1st Embodiment. It is a figure explaining the logic of the reset process flow of the test | inspection and update time of the proposal method which concerns on the proposal support system of the plant equipment maintenance plan of 1st Embodiment. It is a figure which shows an example of the similar equipment information extraction which concerns on the proposal assistance system of the plant equipment maintenance plan of 1st Embodiment. It is a figure which shows an example of common coding of the similar apparatus information which concerns on the proposal assistance system of the plant equipment maintenance plan of 1st Embodiment. It is a figure which shows an example of the standard material creation flow of the proposal method which concerns on the proposal assistance system of the plant equipment maintenance plan of 1st Embodiment. It is a figure which shows an example of the material preparation flow of the target unit of the plan proposal of the proposal method which concerns on the proposal assistance system of the plant equipment maintenance plan of 1st Embodiment. It is a figure which shows an example of the reflection flow to the standard version of the new data of the proposal method which concerns on the proposal assistance system of the plant equipment maintenance plan of 1st Embodiment. It is a whole block diagram of the proposal assistance system of the plant equipment maintenance plan which concerns on 2nd Embodiment. It is a figure which shows the flow of the proposal method of the proposal assistance system of the plant equipment maintenance plan of 2nd Embodiment. It is a figure explaining the whole flow of the proposal method which concerns on the proposal assistance system of the plant equipment maintenance plan of 2nd Embodiment. It is a flowchart which shows the schematic process of the lifetime evaluation method of the raw material level which concerns on the proposal assistance system of the plant equipment maintenance plan of 2nd Embodiment. It is a figure which shows an example of the extraction flow of deterioration mode based on the target unit design information which concerns on the proposal assistance system of the plant equipment maintenance plan of 2nd Embodiment. It is a flowchart which shows the outline of the calculation method of the deterioration rate which concerns on the proposal assistance system of the plant equipment maintenance plan of 2nd Embodiment. It is a figure which shows the design condition of the object plant which concerns on the proposal assistance system of the plant equipment maintenance plan of 2nd Embodiment by comparing the combination of a comparative example and a deterioration factor. It is a figure which shows the result of having calculated the relative error about the design conditions and comparative example which concern on the proposal assistance system of the plant equipment maintenance plan of 2nd Embodiment. It is a figure which shows the process of calculating | requiring a lifetime predicted value from the deterioration rate calculated based on the deterioration mode which concerns on the proposal assistance system of the plant equipment maintenance plan of 2nd Embodiment. It is a graph which shows an example of the lifetime prediction function which concerns on the proposal assistance system of the plant equipment maintenance plan of 2nd Embodiment.

  Hereinafter, preferred embodiments of the present invention will be described in detail. The present embodiment described below does not unduly limit the contents of the present invention described in the claims, and all the configurations described in the present embodiment are essential as means for solving the present invention. Not necessarily.

(First embodiment)
First, the plant facility maintenance work plan material created by the first embodiment of the plant facility maintenance plan proposal support system of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an example of facility maintenance plan material created in the first embodiment of the plant facility maintenance plan proposal support system of the present invention.

  The proposal support system for the plant equipment maintenance plan according to the present embodiment derives the optimum maintenance execution time by adding information on similar plants when creating the plan data for the maintenance work of the plant equipment, and the construction period and contents at that time Is created to be quickly revealed. In the present embodiment, a plan data 50 for a boiler modification history and a future maintenance plan as shown in FIG.

  In this plan document 50, various charts relating to a plant to be proposed in the equipment maintenance plan are described. As shown in FIG. 1, when the proposed plant for the equipment maintenance plan is “No. 1 boiler of B power plant of Company A”, the equipment drawing 52 of the No. 1 boiler is described on the upper left side of the plan document 50. The Then, about the modification history of the No. 1 boiler and the future maintenance plan, a construction execution list 54 that summarizes the implementation timing and implementation schedule of each type of construction is divided on the right side of the plan document 50. be written. On the vertical axis side of the construction execution list 54, the construction target site and the construction content are described for each device and part, and on the horizontal axis side, the construction execution time including the past and the schedule is described. Also, on the lower left side of the plan document 50, as shown in FIG. 1, various types of construction work (for example, inspection, repair / repair, update, modification, inspection, etc.) and the progress (for example, “completed” ”,“ Partially completed ”,“ recommended ”) and the like are represented by various symbols such as ○.

  As described above, in this embodiment, the plan data 50 concisely summarizes the boiler remodeling history and the future maintenance plan for each device provided in the boiler so that the construction history and the degree of construction need can be understood. ing. In other words, the plant facility maintenance plan proposal support system according to the present embodiment systematizes the proposal work that provides various information related to the facility maintenance plan necessary for the plant facility customer to maintain the plant facility. High-quality and leak-free proposals are possible.

  Next, the configuration of the plant facility maintenance plan proposal support system according to the first embodiment of the present invention will be described with reference to the drawings. FIG. 2 is an overall configuration diagram of a plant facility maintenance plan proposal support system according to the present embodiment.

  A plant facility maintenance plan proposal support system 10 according to the present embodiment includes a plurality of information processing apparatuses 100 and 102, which are personal computers respectively owned by a manufacturer and a customer, connected via a communication line 20, respectively. Exchange of service menus for proposal support for plant equipment maintenance plans. The information processing apparatus 100 owned by the manufacturer is provided, for example, for each business site serving as a base in each region for selling plant equipment that is a product. The information processing apparatus 102 owned by the customer is provided, for example, for each operation management room of a plant facility that is a product. The communication line 20 is a so-called computer network system. If information can be transmitted and received between the information processing apparatuses 100 and 102, a public line provided by an electric power company or a dedicated line for supporting plant facility maintenance plans is provided. Any of these may be used.

  As shown in FIG. 2, the plant facility maintenance plan proposal support system 10 of the present embodiment includes a chart system 30, an interface device 104, a CPU (Central Processing Unit) 106, an input unit 108, and an output unit 110. Is provided.

  The medical chart system 30 functions as a storage unit that stores and manages various pieces of information related to customers in association with each customer. That is, the manufacturer's information processing apparatus 100 can search the medical record system 30 for a database in a storage device (not shown) included in another information processing apparatus 102 together with the storage unit 128 (see FIG. 3) included in the manufacturer. The medical record system 30 includes a plant equipment database 32 that stores information on various equipment related to the plant equipment owned by the customer in association with each customer, transmission / reception of various information between the information processing apparatuses 100 and 102, and management of the plant equipment database 32. And a medical record server 34. In this embodiment, by using the medical record system 30 for customer information management, it is possible to use various information related to customers in association with each customer while reducing the trouble of customer information management. It can also be used for proposal support.

  In this embodiment, the chart system 30 includes at least specification information, operation history information, usage record information, update record information, inspection record information, and construction record information of each device provided in the plant facility, and similar devices of the respective devices. At least inspection history information and construction history information are stored in association with each device and similar device, respectively. In this way, the medical record system 30 centrally manages various data related to each device of these plant facilities for each device, so that various data related to each device of a plurality of plant facilities can be obtained from a customer name, a device name, etc. Information can be detected instantly. That is, it becomes possible to efficiently detect various data related to the plant to be proposed in the equipment maintenance plan and similar plants. For this reason, by preparing planning materials that reflect the inspection and update information of each equipment in the target plant of the equipment maintenance plan and similar plants, it is possible to anticipate more appropriate inspection and update times and anticipate customer needs in advance. Service proposals can be made.

  The interface device 104 is connected to the network 20 and performs wired or wireless communication with the customer-side information processing device 102 or the medical record system 30 on the network 20.

  The CPU 106 controls the overall operation of the information processing apparatus 100 on the maker side provided in the plant facility maintenance plan proposal support system 10. In the present embodiment, the CPU 106 includes a standard plan material creation unit 112, an inspection / update time setting unit 114, an inspection / update time reset unit 116, a similar device information extraction unit 118, and a plan material revision unit 120. Provided.

  The standard plan material creation unit 112 creates standard plan material that serves as a basis for the plan material based on at least the specification information and operation history information of each device provided in the plant facility. In the present embodiment, plan data describing standard inspection / update times is created based on the specification information, construction type, and operation history information of each device provided in the plant to be proposed for the equipment maintenance plan. A detailed description of creating the standard plan material by the standard plan material creating unit 112 will be described later.

  The inspection / update time setting unit 114 sets the inspection / update time of each device for each device based on the usage history information and update history information of each device. The plant equipment is composed of a large number of devices, parts, and the like, and the frequency of use, durability, and life of these devices are different, so there is a variation in the frequency that needs to be updated. Therefore, in this embodiment, the inspection / update time setting unit 114 provides update information and maintenance information at an appropriate update time for each device when proposing a long-term facility maintenance plan for a plant to a customer. In addition, an appropriate inspection / update time is set for each device. A detailed description of the setting of the inspection / update time by the inspection / update time setting unit 114 will be described later.

  Based on the inspection history information and construction history information of each device, the inspection / update time resetting unit 116 re-evaluates and resets the inspection / update time of each device for each device. In the present embodiment, the inspection / update time resetting unit 116 re-evaluates the inspection / update time of each device for each device based on the history information including the inspection history information and construction history information of each device. The inspection / update time is reviewed, and the review result is reflected in the standard inspection / update time set by the inspection / update time setting unit 114 to reset the inspection / update time of each device.

  The similar equipment information extraction unit 118 obtains inspection history information on the similar equipment from other plant equipment having similar equipment that has the same function and different structure or name as each equipment included in the plant to be proposed in the equipment maintenance plan. At least one of the construction history information is extracted. In the present embodiment, other plant equipment including similar equipment is treated as a similar unit and similar plant, and inspection history information and construction history information regarding similar equipment of these similar plants are reflected, so that a more suitable plant equipment maintenance plan can be obtained. Proposal support services can be provided.

  The plan document revision unit 120 is based on the inspection / update time reset for each device by the update time resetting unit and at least one of the inspection history information and the construction history information extracted by the similar device information extraction unit. To revise the inspection / update timing of the standard plan document. In the present embodiment, the plan data revision unit 120 reflects the information about the proposed plant and similar plant of the equipment maintenance plan, and the plan data that customizes the optimal maintenance execution timing for each device of the proposed plant can be efficiently obtained. Created.

  The input unit 108 is a means for inputting information. For example, a mouse, a keyboard, a touch panel, or the like is used. In this embodiment, the input unit 108 operates, for example, the standard plan material creation unit 112, the inspection / update time setting unit 114, the inspection / update time reset unit 116, the similar device information extraction unit 118, and the plan material revision unit 120. The character input when the information is made, and the information input stored in the customer database 32 of the medical chart system 30 or the storage unit 128 (see FIG. 3) of the information processing apparatus 100 are performed. Information stored in the customer database 32 of the medical record system 30 or the storage unit 128 of the information processing apparatus 100 may be input from an external terminal or the like via the network 20 or the like.

  The output unit 110 outputs the calculation results by the CPU 106, the information of the databases 32 and 128, and the like. For example, a display monitor or the like is used as the output unit 110. In this embodiment, the output unit 110 operates, for example, the standard plan material creation unit 112, the inspection / update time setting unit 114, the inspection / update time reset unit 116, the similar device information extraction unit 118, and the plan material revision unit 120. The screen is displayed when you

  Next, the configuration of the information processing apparatus according to the boiler fuel conversion sales expansion support system of the present embodiment will be described with reference to the drawings. FIG. 3 is a block diagram illustrating an electrical configuration of the information processing apparatus according to the proposal support system for the plant facility maintenance plan of the present embodiment.

  The information processing apparatus 100 according to the present embodiment includes an interface device 104, a CPU 106, a ROM (Read Only Memory) 124, a RAM (Random Access Memory) 126, a storage unit 128, an input unit 108, and an output unit 110. And a reading unit 130.

  The interface device 104 is connected to another information processing device via a communication line, and transmits / receives various data to / from the other information processing device. The CPU 106 controls the overall operation of the information processing apparatus 100. The ROM 124 stores various operation programs and various data in advance. The RAM 126 temporarily stores various data used as a work area when the CPU 106 operates various programs.

  The storage unit 128 is an auxiliary storage device such as an HDD (Hard Disk Drive) that stores various types of information including a manufacturer's office database and various programs. In the present embodiment, the storage unit 128 is centrally managed by the medical record system 30 by associating a database in a storage device included in another information processing apparatus 102 and various pieces of information related to customers for each customer. In this way, the medical record system 30 centrally manages the storage devices of the information processing apparatuses 100 and 102, thereby realizing advanced management and labor saving of various service information.

  The input unit 108 includes a keyboard, a mouse, and the like, and receives input of various operations. The output unit 110 displays and outputs various images using a liquid crystal display device or the like. The reading unit 130 reads information stored in the portable storage medium 132. The portable storage medium 132 includes a magnetic disk, an optical disk such as a CD (Compact Disk) and a DVD (Digital Versatile Disk), a memory IC (Integrated Circuit) card, a memory card, and the like.

  The CPU 106, ROM 124, RAM 126, storage unit 128, input unit 108, output unit 110, interface device 104, and reading unit 130 are electrically connected to each other via a system bus 134. Therefore, the CPU 106 accesses the ROM 124, the RAM 126, and the storage unit 128, grasps the operation state of the input unit 108, displays an image on the output unit 110, and various information with the information processing apparatus 102 on the customer side via the interface device 104. And the like, and reading of information from the portable storage medium 132 via the reading unit 130 can be performed.

  Next, an equipment maintenance plan proposal support method by the plant equipment maintenance plan proposal support system of the present embodiment will be described with reference to the drawings. FIG. 4 is a diagram showing a flow of the proposal method according to the proposal support system for the plant equipment maintenance plan of the present embodiment, and FIG. 5 shows the entire proposal method according to the proposal support system for the plant equipment maintenance plan of the present embodiment. It is a figure explaining a flow.

  When supporting proposal for a plant equipment maintenance plan for creating plan data for maintenance work of plant equipment, first, based on at least the specification information and operation history information of each equipment provided in the plant equipment, A standard plan document is created (step S11). In this embodiment, as shown in FIG. 5, when creating a standard long-term facility maintenance plan 40, based on the specification conditions related to the proposal target plant drawn from the chart system 30, data such as operation time, A standard plan document 40 is created that describes the site to be constructed and its deterioration mode, construction type (inspection, repair, update), standard implementation time, and the like.

  Next, based on the use record information and update record information of each device, the inspection / update time of each device is set for each device (step S12). In the present embodiment, as shown in FIG. 5, with respect to parts and devices that have a lot of past inspection, repair, and renewal work, the past inspection results and life evaluation results of all plants including other plant facilities, Set the implementation time from the repair / update / modification history information. On the other hand, with respect to parts and devices for which inspection, repair, and renewal work have not been performed in the past, the implementation time is set by the life evaluation database 36 that evaluates the life distribution based on public information on the device and past inspection results. .

  Thereafter, based on the inspection history information and construction history information of each device of the proposal target plant, the inspection / update time of each device is re-evaluated and reset for each device (step S13). In the present embodiment, as shown in FIG. 5, the long-term facility maintenance plan 40 of the standard version is reflected in the proposal by reflecting the past inspection history information and the history information as construction history information of each device of the proposed plant. A long-term facility maintenance plan 50 is created by customizing for the target plant.

  Next, at least one of inspection history information and construction history information of similar equipment having the same function of each equipment provided in another plant facility and at least one of the structure and the name being different is extracted (step S14). In the present embodiment, as shown in FIG. 5, reflecting the information of similar units such as inspection and update results of similar plants, the standard version of the long-term facility maintenance plan 40 is customized for the proposed plant, A long-term equipment maintenance plan 50 is created.

  After that, based on the inspection / update time reset for each device by the update time resetting unit and at least one of the inspection history information and construction history information extracted by the similar device information extraction unit, the standard plan material The inspection / update time is revised (step S15). Then, the inspection / update time is reset, the standard long-term equipment maintenance plan 40 is customized for the proposed plant, and the long-term equipment maintenance plan 50 is created.

  And specification information, operation history information, usage record information, update record information, inspection record information, construction record information, and construction record information of each device obtained in the above steps S11 to S15, and at least inspection record information of similar devices And the construction history information are stored in the storage unit 128 in association with the respective devices and similar devices (step S16).

  As described above, according to the present embodiment, plan information in which suitable inspection / update timing is customized for each device of the proposed target plant is efficiently created by reflecting information on the proposed target plant and similar plant of the equipment maintenance plan. As a result, after-sales service can be strengthened.

  Next, the details of the inspection / update time setting operation according to the plant facility maintenance plan proposal support system of the present embodiment will be described with reference to the drawings. FIG. 6 is a diagram showing a flow of setting the inspection / update time of the proposal method according to the proposal support system for the plant equipment maintenance plan of the present embodiment, and FIG. 7 is a proposal support system for the plant equipment maintenance plan of the embodiment. It is a figure explaining the logic of the setting flow of the test | inspection / update time of the proposal method which concerns on.

  When setting the inspection / update time in the proposal support system for the plant equipment maintenance plan of the present embodiment, first, for devices with a large number of update results, the inspection / update time setting unit 114 is based on the past update information. Update result distribution is formulated (step S121). For example, when the proposed plant is a thermal power generation boiler, the superheater tube is a device or part that is frequently updated, and therefore, as shown in FIG. 7, an update record distribution D1 is formulated based on past update record information.

  On the other hand, for a device that has a long service life and has a low update record, a life distribution is formulated based on public information about the device and past inspection results (step S122). For example, when the proposed plant is a thermal power generation boiler, the header is a device or part that is less frequently updated, and therefore, as shown in FIG. 7, a life distribution D2 is formulated based on a public database and past inspection results. At this time, when there are a plurality of deterioration modes D21 and D22 such as creep and high temperature corrosion, the evaluation is made by the life distribution D21 on the short life side.

  Next, the specific lifetime obtained from the lifetime controlling factors such as the installation position, shape, material, etc. of the device having a high update record and the device having a low update record is calculated, and the inspection / update time is reviewed (step S123). That is, in the present embodiment, in order to formulate a more suitable inspection / update time, the inspection / update time is reviewed by reflecting the life control factor that can be a special variation factor of the equipment to be constructed.

  Thereafter, the inspection / update time is formulated based on the update result distribution, the life distribution, and the specific life calculated in the above steps (step S124). The operation of formulating the inspection / updating time for devices with abundant update results will be described. As shown in FIG. 7, for example, when the standard update time based on past results is S1, two years before the shortest update result E1. When the initial inspection S2 is set, the next inspection time is set to S3 based on the initial inspection result S2. That is, the inspection / update time is reviewed and reset by reflecting the inspection time when the standard update time S1 based on the past results is actually performed. On the other hand, the operation for formulating the inspection / updating time for a device with little update results will be described. As shown in FIG. 7, for example, when the standard update time based on past results is T1, among the plurality of deterioration modes, In consideration of the shortest update result E2 of the life side D21, the first inspection is set to T2, and the next inspection time is set to T3 based on the initial inspection result T2.

  As described above, in the present embodiment, it is possible to formulate an appropriate inspection / updating time for each device based on the update results of each device provided in the proposed plant for the facility maintenance plan. That is, for example, an optimal inspection interval corresponding to the deterioration mode of each part of 30 or more devices and a standard version of recommended renewal work can be formulated.

  Next, the details of the inspection / update time resetting operation according to the proposal support system for the plant equipment maintenance plan of the present embodiment will be described with reference to the drawings. FIG. 8 is a diagram showing a flow of resetting the inspection / update timing of the proposal method according to the proposal support system for the plant equipment maintenance plan of the present embodiment, and FIG. 9 shows the proposal support for the plant equipment maintenance plan of the present embodiment. It is a figure explaining the logic of the reset process flow of the inspection / update time of the proposal method which concerns on a system. In addition, in FIG. 9, the case where the inspection / update time of a superheater pipe | tube is reset is demonstrated to an example.

  When resetting the inspection / update timing in the plant facility maintenance plan proposal support system according to the present embodiment, the inspection / update timing resetting unit 116 first performs inspection history information and construction of each device of the plant equipment to be inspected. The history information as history information is made into a database for each device (step S131).

  Next, based on the history information and the newly acquired inspection result information, the deterioration rate of each device is re-evaluated (step S132), and the inspection / update timing is reviewed (step S133). For example, when the standard renewal time of the superheated organ is set to Ts, if the thinning speed is fast, as shown in FIG. 9, the inspection results R1, R2 from the history information at the speeds V1, V2, From the inspection results Rn1 and Rn2 by the inspection En, the update timing is advanced to Ts1 and Ts2, respectively. On the contrary, if the thinning speed is slow, the update time is lowered to Ts3 from the inspection result R3 from the history information at the speed V3 and the inspection result Rn3 by the inspection En newly. In this way, in the present embodiment, the update time is reviewed based on the history information and the newly acquired inspection result information, and a more appropriate update time is set.

  Thereafter, the result of the review of the inspection / update time is reflected in the plan material, and the inspection / update time described in the standard plan material is corrected (step S134). At this time, customization is performed so that the shortest update time and the standard update time described in the standard plan document are revised from E3 and Ts to E4 and Ts4, respectively. As described above, according to the present embodiment, based on the inspection result information newly acquired for the inspection / update time of each device provided in the plant to be proposed in the equipment maintenance plan, the appropriate inspection / update time for each device. Therefore, it is possible to formulate an appropriate inspection / update time that reflects the latest inspection results.

  Next, the details of the similar equipment information extraction operation according to the plant facility maintenance plan proposal support system of the present embodiment will be described with reference to the drawings. FIG. 10 is a diagram showing an example of similar equipment information extraction related to the plant equipment maintenance plan proposal support system of the present embodiment, and FIG. 11 shows similar equipment related to the plant equipment maintenance plan proposal support system of the present embodiment. It is a figure which shows an example of common encoding of information.

  In the present embodiment, the similar device information extraction unit 118 divides the function of each device into the function that each device actually operates as a major category, and then divides the use condition of each device as the middle category, and the common code And stored in the storage unit. In other words, the components of large plants that have already been delivered are divided into four levels: part system (major category), equipment (medium category), component (small category), and parts (detail category), and codes are assigned according to each function. Turn into. For example, as shown in Fig. 10, when the boiler type is VU, the major division is related to the superheater, the middle division is divided into the primary superheater tube, the secondary superheater tube, the tertiary superheater tube, the fourth superheater tube, etc. The type of construction and the status of implementation will be described according to the category.

  In addition, as shown in FIG. 11, even if the equipment provided in the plant facility to be inspected and the equipment provided in the other plant equipment have different names on the drawing, by assigning a hierarchical common code according to the function, It is possible to manage devices of similar units up to parts. For this reason, since the equipment provided in the inspection target plant and the similar equipment provided in another plant are converted into common codes for each function, it is possible to search using the common code. As a result, horizontal development to a similar plant unit can be carried out quickly and without omission with respect to trouble occurring in a certain plant unit. In the present embodiment, information on each device provided in the plant to be proposed in the equipment maintenance plan and similar plant is coded and stored according to the function of each device, so various information on each device provided in the similar plant is also reflected. In this way, more suitable planning materials can be created efficiently.

  Next, the standard material creation flow of the proposal method according to the proposal support system for the plant equipment maintenance plan of the present embodiment will be described with reference to the drawings. FIG. 12 is a diagram illustrating an example of a standard material creation flow of the proposal method according to the proposal support system for the plant equipment maintenance plan of the present embodiment.

  When creating a standard version of the plan data in the plant facility maintenance plan proposal support system of the present embodiment, first, basic information is described in the standard plan data (step S121). In the present embodiment, for example, basic information related to the boiler type, fuel, and other facilities, information on applicable laws (electric power law for power generation, labor base law for air supply), operation modes (base load, WSS), and the like are input. The

  Next, it inputs about the various apparatuses with which a plant facility is equipped. In the present embodiment, about 30 types of equipment such as a furnace wall, a superheater, a reheater, a economizer, and a header are targeted for maintenance. Thereafter, when considering the pressure resistant part, the maintenance plan is examined for each of the high temperature part S123a, the medium temperature part S123b, and the low temperature part S123c. In the case where the pressure-resistant portion is a high-temperature portion, the occurrence of creep S124a, high-temperature corrosion S124b, fatigue S124c, and erosion S124d will be considered as problems that occur. On the other hand, when the pressure-resistant portion is the low temperature portion, the occurrence of low temperature corrosion S124e and FACS124f is examined as a trouble that occurs. Thereafter, an average life for each device is calculated (step S125), and a standard inspection / update time is formulated (step S126).

  Next, the document creation flow for the target unit of the plan proposal according to the proposal support system for the plant equipment maintenance plan of the present embodiment will be described with reference to the drawings. FIG. 13 is a diagram illustrating an example of a material creation flow of the target unit of the plan proposal of the proposal method according to the proposal support system for the plant equipment maintenance plan of the present embodiment.

  When creating plan data for a target unit with the plant facility maintenance plan proposal support system of the present embodiment, first, basic information of the target unit is described in the plan data (step S131). In the present embodiment, for example, basic information related to the boiler type, fuel, and other facilities, information on applicable laws (electric power law for power generation, labor base law for air supply), operation modes (base load, WSS), and the like are input. The

  Next, the operation history of various devices provided in the plant facility is input. In the present embodiment, information such as operation time and the number of times of starting and stopping is input (step S132). Thereafter, the visit information of each device is input for the past inspection / update history (step S133).

  Thereafter, each device is sorted based on the presence / absence of the inspection history and the presence / absence of the update history (steps S134a, S134b, and S134c). For example, if the furnace wall has an inspection history, the inspection / update time is reset based on the inspection result (step S135a). Also, if the superheater has been inspected and there is an update history, check whether there is a change in the specification / operation mode (step S135b), and if there is a change, recalculate the life based on the information of the changed part. (Step S136a), the inspection / update timing is reset (Step S137). On the other hand, if there is no change, the inspection / update interval is set based on the update time information (step S136b). In addition, when there is neither an inspection history nor an update history in the header with a low update frequency, a standard inspection / update time is set (step S135c). In this way, in this embodiment, based on the newly acquired inspection result information on the inspection / update timing of each device provided in the plant to be proposed in the equipment maintenance plan, an appropriate inspection / update timing is set for each device. Can be corrected. For this reason, it is possible to formulate a more appropriate inspection / update time period by reflecting the latest inspection results.

Next, a flow of reflecting new data in the standard version of the proposal method according to the proposal support system for the plant equipment maintenance plan of the present embodiment will be described with reference to the drawings. FIG. 14 is a diagram illustrating an example of a flow of reflecting new data on the standard version of the proposal method according to the proposal support system for the plant equipment maintenance plan of the present embodiment.
FIG.

  When reflecting the new data to the standard version in the plant facility maintenance plan proposal support system of this embodiment, first create the medium- to long-term maintenance plan data for the target unit (step S141), and then perform inspection / update work. Proposal is implemented (step S142).

  Next, the inspection / update status of various devices provided in the plant facility is confirmed (steps S143a, S143b, and S143c). In the example shown in FIG. 14, the inspection / update status regarding the furnace wall, the superheater, and the header is confirmed, the furnace wall is updated (step S144a), the superheater is inspected (step S144b), and the header is If it is confirmed that there is an inspection (step S144c), a medium- to long-term maintenance plan for the target unit and subsequent times is formulated (step S145).

  In the case of the furnace wall, since there are many inspection / update results including other units, it is considered that there is little influence from the update (process S144a). On the other hand, in the case of the header, other units are also included. Since there are few inspection and renewal results, the influence of inspection is considered to be large. For this reason, in the present embodiment, the inspection / update results for each device are reflected in the average life of each device (step S146), and the standard inspection / update time is revised (step S147).

  Thus, in this embodiment, it can be reflected in a long-term plan in a short time based on the construction history in the chart system. In addition, by systematizing equipment maintenance plan proposal work such as equipment maintenance and construction, it becomes possible to propose high-quality and leak-free proposals, and it is possible to efficiently deploy similar unit information horizontally. Furthermore, by utilizing similar unit information and remaining life diagnosis data, etc., it will be possible to present the optimal inspection and renewal time regardless of the person, so detailed items such as inspection items will be clearly defined in the long-term construction plan. Reflecting the contents, it is easy to plan a specific budget. In addition, since the facility maintenance plan is presented over a long period of time, the facility can be operated with peace of mind.

(Second Embodiment)
In the first embodiment, the similar equipment information extraction unit 118 extracts other plant equipment having similar equipment that has the same function and different structure or name as each equipment provided in the target plant for the equipment maintenance plan, Other plant equipment with similar equipment can be treated as similar units and similar plants, and inspection history information and construction history information on similar equipment of these similar plants can be reflected to propose a proposal support service for a suitable plant equipment maintenance plan I did it. On the other hand, in the second embodiment, when there is no inspection history information and construction history information related to similar equipment in a similar plant, or when there is no other plant equipped with similar equipment (for example, a new model or a product made by another company). Another characteristic is that an efficient long-term plan can be established by performing life evaluation at the material level.

  In the first embodiment, only the predicted value of the deterioration mode having the greatest influence (the shortest remaining life) is used, so there is room for improvement in the life prediction accuracy and the accuracy of the optimum execution time evaluation of the maintenance plan. is there. For example, in an actual facility, since a plurality of deterioration phenomena occur in parallel, it is necessary to consider a plurality of deterioration phenomena in order to perform life prediction more accurately. Such a problem can be suitably solved by the second embodiment described below.

A configuration of a plant facility maintenance plan proposal support system according to a second embodiment of the present invention will be described with reference to the drawings. FIG. 15 is an overall configuration diagram of a plant facility maintenance plan proposal support system according to the present embodiment.
In the following description, the same portions as those in the first embodiment described above are denoted by common reference numerals, and overlapping descriptions are omitted as appropriate.

  In this embodiment, as will be described later with reference to FIG. 17, in addition to the first embodiment, the medical record system 30 includes a target plant design information database for storing target plant design information related to the design contents of the target plant equipment, and a material A deterioration mode database for storing a deterioration mode in which the deterioration characteristics are associated with deterioration factors. In the present embodiment, by performing the life evaluation at the material level using the degradation mode extracted based on the target plant design information stored in these databases, the reliability can be improved even when there is no similar equipment information. High service proposals can be made.

The CPU 106 controls the overall operation of the information processing apparatus 100 on the maker side provided in the plant facility maintenance plan proposal support system 10 as in the first embodiment, but further includes a deterioration mode extraction unit 119. Based on the target plant design information stored in the target plant design information database, the deterioration mode extraction unit 119 extracts a deterioration mode for each material used for the constituent devices of the target plant from the deterioration mode database. It has a function to perform life evaluation at the material level.
The detailed control contents in the deterioration mode extraction unit 119 will be described later.

  FIG. 16 is a diagram showing a flow of a proposal method of the plant facility maintenance plan proposal support system according to the second embodiment, and FIG. 17 shows an overall proposal method according to the plant facility maintenance plan proposal support system of the present embodiment. It is a figure explaining a flow. Here, since steps S21 to S24 and S28 to S29 are the same as steps S11 to S16 in the first embodiment (see FIG. 4), detailed description thereof will be omitted here.

  In the second embodiment, extraction of similar device information (at least information of inspection history information and construction history information) is attempted in step 24, and as a result, it is determined whether there is similar device information (step S25). ). When there is similar device information (step S25: YES), life evaluation using the similar device information is performed (step S26), as in step S15 of the first embodiment. On the other hand, if there is no similar device information (step S25: NO), material-level life evaluation is performed (step S27). In this embodiment, as shown in FIG. 17, even if there is no similar plant, based on the material life evaluation used in the target plant, the standard version of the long-term equipment maintenance plan 40 is applied to the proposed target plant. The long-term equipment maintenance plan 50 is created by customizing the program. Then, the plan material is revised based on the life evaluation result in either step S26 or S27 (step S28), and various pieces of information regarding each device are stored (step S29).

  Here, as shown in FIG. 17, the medical chart system 30 further includes a target plant design information database and a deterioration mode database, as compared with the first embodiment (see FIG. 4). The target plant design information database stores target plant design information including information on materials used in devices constituting the target plant and parameters that cause deterioration of the materials. Specifically, in the example of FIG. 17, pressure-resistant part design information (equipment, material standards, outer diameter, pipe length, wall thickness, minimum required wall thickness (TSR), which is design information related to the pressure-resistant part to be evaluated in the target plant, Combustion gas information (gas properties, temperature, flow velocity, pressure), installation location) and operation information (operation time, operation method, load state, design temperature) regarding the operation state of the target plant are stored as target plant design information. Yes.

  Further, in the deterioration mode database provided in the medical chart system 30, deterioration modes (for example, high temperature corrosion, FAC, erosion, etc.) that can occur for the constituent devices of the target unit correspond to corresponding deterioration factors (for example, material standards, gas properties, temperature, It is stored in association with the installation location.

  Next, the specific contents of the material level life evaluation method will be described in detail. FIG. 18 is a flowchart showing a schematic process of a material level life evaluation method. The life evaluation method at the material level is roughly divided into three stages, and includes a deterioration mode extraction (step S211), a deterioration rate calculation (step S212), and a life evaluation (step S213).

  First, in step S211, as shown in FIG. 19, based on the target unit design information stored in the target unit design information database, the material used is specified for each device constituting the target unit and becomes a deterioration factor. Parameters (eg material standards, gas properties, temperature, installation location) are extracted. Then, based on the extracted information, a corresponding deterioration mode is extracted from a plurality of deterioration modes stored in the deterioration mode database. That is, the degradation mode in which the combination of the material standard, the gas property, the temperature, and the installation location included in the target unit design information matches is selected from the degradation mode database.

In FIG. 19, the constituent devices of the target unit are formed of three types of materials, STB, STBA, and SUS. For each material, three types of deterioration modes of high temperature corrosion, FAC, and erosion are extracted, and each of the deterioration types is extracted. They are listed according to the factors (gas properties, temperature, pressure, installation location).
Here, the degradation modes corresponding to high temperature corrosion, FAC, and erosion are represented by variables x1, x2, and x3, respectively, and the degradation modes x1 to x3 are degradation factors a (gas properties), b (material standard), and c (pressure). ), D (installation location), and is assumed to be represented by a regression line represented by the following equation.
x1 = A1 * a + B1 * b + C1 * c + D1 * d (1-1)
x2 = A2 * a + B2 * b + C2 * c + D2 * d (1-2)
x3 = A3 * a + B3 * b + C3 * c + D3 * d (1-3)
Here, A1 to A3, B1 to B3, C1 to C3, and D1 to D3 are weighting coefficients in each regression line. Note that A1 + B1 + C1 + D1 = 1, A2 + B2 + C2 + D2 = 1, and A3 + B3 + C3 + D3 = 1.

  Subsequently, in step S212, the deterioration rate is calculated by obtaining the weighting coefficients in the equations (1-1) to (1-3). FIG. 20 is a flowchart showing an outline of a method of calculating the deterioration rate.

  First, with respect to the deterioration mode extracted in step S211 (see FIG. 18), it is determined whether or not there has been one obtained in the past under the same deterioration factor as that of the target unit (step S221). In the degradation mode database, for degradation modes with a track record, the weighting coefficient at the past track record is stored in association with the degradation mode in advance. Here, when there is a degradation mode having the degradation factor combination condition exactly the same as the degradation factor combination condition obtained from the target unit design information (step S221: YES), the weight associated with the degradation mode is set. The coefficient is adopted as it is (step S222).

For example, from the target unit design information, “gas properties (a): CO ₂ , temperature (b): T 1, pressure (c): P 1, installation location (d)” for the high temperature corrosion degradation mode (x 1) of the material STBA. : When the combination condition of deterioration factors such as “entrance” is obtained, if there is a deterioration mode obtained under the same combination condition as the combination condition in the deterioration mode database, the past results of the deterioration mode The weighting coefficients (A1: B1: C1: D1 = A1-1: B1-1: C1-1: D1-1) used in the above are employed as they are. That is, in this case, the above equation (1-1) is
x1 = (A1-1) * a + (B1-1) * b + (C1-1) * c + (D1-1) * d (1-1-1)
It becomes.

  Subsequently, when there is no deterioration mode having the same combination condition as the deterioration factor combination condition obtained from the target unit design information (step S221: NO), the deterioration factor combination condition is partially matched. It is determined whether a deterioration mode exists (step S223). As a result, when there is a degradation mode having a partially matching degradation factor combination condition (step 223: YES), the weighting factor associated with the degradation mode having the degradation factor with the closest combination condition is adopted. (Step S224).

For example, as shown in FIG. 21 (a), the combination conditions of deterioration factors are “a = CO ₂ , b = T, c = P, d = inlet” based on the design conditions of the target plant obtained from the target unit design information. If it is, combination condition 1 _{"a = CO 2, b = T1} , c = P1, d = inlet" in degraded mode database, _{"a = CO 2, b = T2} , c = P2, d = entrance" Suppose that the combination condition 2 of “a = CO ₂ , b = T 3, c = P 3, d = exit” is stored. In this case, the combination condition 1 & 2 matches the gas condition (a) and the installation location (d) in the combination condition 1 & 2, but the combination condition 3 only matches the gas condition (a). Yes. Therefore, as shown in FIG. 21B, the combination 1 & 2 having a large number of items that match the design conditions is selected.

In addition, since the number of items that match the design condition is the same for the combination conditions 1 & 2, it is preferable to narrow down by evaluating the relative error of the predicted life value obtained from each deterioration factor. For example, the relative errors ΔL1 and ΔL2 between the design pressure life prediction value and the combination pressure conditions 1 & 2 design pressure conditions are the life prediction value Lp1 for the combination 1, the life prediction value Lp2 for the combination 2, and the design pressure of the target plant. It is calculated using the provisional life prediction value Lp for P. Here, the provisional life prediction value Lp is a value obtained by hitting the life prediction value of the target design condition using each design condition value. When P1 and P2 described above are expressed by P1 = P + ΔP1 and P2 = P−ΔP2, the provisional life prediction value Lp is defined as a point that internally divides between Lp1 and Lp2 into ΔP1: ΔP2, and is expressed by the following equation. It is.
Lp = Lp1 + (Lp2−Lp1) × ΔP1 / (ΔP1 + ΔP2) (2-1)
Lp = Lp2 + (Lp2-Lp1) × ΔP2 / (ΔP1 + ΔP2) (2-2)
At this time, the relative errors ΔL1 and ΔL2 are the estimated life value Lp1 when the design pressure P of the target plant is calculated from the equation (2-1) or (2-2) and the estimated life value Lp1 when the combination 1 is used. Using the life prediction value Lp2 for the combination 2, it is expressed by the following equation.
ΔL1 = | Lp1-Lp | / Lp × 100 (2-3)
ΔL2 = | Lp2-Lp | / Lp × 100 (2-4)

  In the present embodiment, it is assumed that the estimated pressure Lp is greater than the design pressure P and the pressure P2 is less than the existing value, and the life prediction value Lp is calculated by interpolation. When P2 is larger or smaller than both, the provisional life prediction value Lp is defined as a point that divides the distance between Lp1 and Lp2 into ΔP1: ΔP2, thereby calculating the relative errors ΔL1 and ΔL2.

  FIG. 22 is a diagram illustrating a result of calculating a relative error for each deterioration factor with respect to the design condition and the combination condition 1 & 2. According to this example, the maximum relative error in combination condition 1 is 15%, whereas in combination condition 2, the maximum relative error is 12%. Therefore, combination condition 2 having a small maximum relative error is finally selected. Is done. Then, the weighting coefficient stored in association with the combination condition 2 in the deterioration mode database is employed.

  Returning to FIG. 20 again, when there is no degradation mode having a partially matching degradation factor combination condition (step S223: NO), that is, when there is no past record, based on the target unit design information. The deterioration rate is calculated (step S225). For example, the surface area of the pressure-resistant portion is calculated from the outer diameter, the wall thickness, and the pipe length included in the target unit design information, and the degradation region of the pressure-resistant portion is set. Also, the chemical reaction formula for each deterioration mode is determined from the material standard and gas properties included in the target unit design information, and the chemical reaction rate is calculated using the gas temperature, gas flow rate, and internal pressure. From the chemical reaction rate and the degradation region of the pressure-resistant portion, the degradation rate of the degradation mode for the target material is calculated from the reaction rate per unit area of the pressure-resistant portion surface.

When the calculation of the deterioration rate is completed in this way, life evaluation is performed in step S213 (see FIG. 18). FIG. 23 is a diagram illustrating a process of obtaining a life prediction value from the deterioration rate calculated based on the extracted deterioration mode. As described above, x1 to x3 are obtained by adding the deterioration modes extracted for each material used for the device from the deterioration mode database for each deterioration factor under the weighting coefficient. The life prediction function y is expressed by the following equation y = g (x1, x2, x3) according to a function having high-temperature corrosion (x1), FAC (x2), and erosion (x3) as the respective degradation modes.
It is represented by In the present embodiment, it is assumed that the function g is a linear function, and using the weighting coefficients α, β, and γ, the following equation y = α × x1 + β × x2 + γ × x3
It is represented by Note that α + β + γ = 1.

Here, the weighting coefficients α, β, and γ are values determined for each combination of the material standard and the deterioration mode included in the target plant design information. This weight is calculated using the created life prediction graph of each deterioration mode. For example, since the above equations (1-1) to (1-3) are linear regression lines with time t as a state variable, they can be rewritten as the following equation.
x1 = ω1 × t (3-1)
x2 = ω2 × t (3-2)
x3 = ω3 × t (3-3)
Here, ω1 to ω3 are inclinations (= deterioration speed) in each regression line. A value normalized so that the sum of the magnitudes of ω1 to ω3 becomes 1 is used as a weighting coefficient for each deterioration mode, and is stored in the target plant design information database as a weighting coefficient for each deterioration mode with respect to a certain material standard. That is, α, β, and γ (where α + β + γ = 1) are calculated by the following equations.
α = ω1 / (ω1 + ω2 + ω3) (4-1)
β = ω2 / (ω1 + ω2 + ω3) (4-2)
γ = ω3 / (ω1 + ω2 + ω3) (4-3)

  FIG. 24 is a graph showing an example of the life prediction function y, where the vertical axis indicates the wall thickness value and the horizontal axis indicates the operation time. As shown in FIG. 24, a minimum required thickness value (TSR) is set in advance as a threshold value, and the time when it reaches the TSR is assumed to be a life prediction value t1. Then, as the difference between the predicted life value y1 and the current time t0, the remaining life for each material used in the component equipment of the target plant is calculated. In this way, the shortest life expectancy value y1 calculated for each material used in the component equipment of the target plant is regarded as the remaining life of the component equipment, and the inspection / update timing of the standard plan document is revised. (See step S28 in FIG. 16).

  As described above, in the second embodiment, even if there is no similar equipment, the remaining life evaluation is performed through life evaluation at the material level, so that the inspection / update time is revised and the after-sales service is strengthened. Can be planned.

  Although the first and second embodiments of the present invention have been described in detail as described above, it will be understood by those skilled in the art that many modifications that do not substantially depart from the novel matters and effects of the present invention are possible. Will be easily understood. Therefore, all such modifications are included in the scope of the present invention.

  For example, a term described together with a different term having a broader meaning or the same meaning at least once in the specification or the drawings can be replaced with the different term anywhere in the specification or the drawings. Also, the configuration and operation of the plant facility maintenance plan proposal support system are not limited to those described in the first embodiment of the present invention, and various modifications can be made.

10 Proposal Support System for Plant Equipment Maintenance Plan 20 Communication Line 30 Medical Record System (Storage Unit)
32 Customer database 34 Medical record server 36 Life evaluation database 40 Standard plan material 50 Plan material 100 (Manufacturer side) Information processing device 102 (Customer side) Information processing device 104 Interface device 106 CPU
108 Input unit 110 Output unit 112 Standard plan material creation unit 114 Inspection / update time setting unit 116 Inspection / update time reset unit 118 Similar equipment information extraction unit 119 Degradation mode extraction unit 120 Plan data revision unit 124 ROM
126 RAM
128 Storage Unit 130 Reading Unit 132 Portable Storage Medium 134 System Bus

Claims (12)

A plant equipment maintenance plan proposal support system that creates planning data for plant equipment maintenance work,
A standard plan material creation unit that creates a standard plan material serving as a reference for the plan material based on at least specification information and operation history information of each device provided in the plant facility;
Based on the usage record information and update record information of each device, an inspection / update time setting unit for setting the inspection / update time of each device for each device;
Based on the inspection history information and construction history information of each device, an inspection / update time resetting unit that reevaluates and resets the inspection / update time of each device for each device;
A similar equipment information extraction unit for extracting at least inspection history information and construction history information of similar equipment having the same function of each equipment provided in other plant facilities and at least one of the structure and name being different;
Based on the inspection / update time reset for each device by the update time resetting unit, and at least one of the inspection history information and the construction history information extracted by the similar device information extraction unit, the standard A plan data revision department that revises the inspection and update timing of plan data,
At least the specification information, the operation history information, the usage record information, the update record information, the inspection history information, and the construction history information of each device, and at least the inspection history information and the construction history information of the similar device And a storage unit that stores them in association with the respective devices and the similar devices, respectively, and a proposal support system for a plant facility maintenance plan.   The inspection / update time setting unit formulates an update history distribution based on past update record information for devices with a high update record, and public information and past test results for the device with a low update record. Based on the update history distribution, the lifetime distribution, and the specific lifetime The plant equipment maintenance plan proposal support system according to claim 1, wherein an inspection / update time is formulated.   The inspection / update time resetting unit is configured based on newly acquired inspection result information after making the inspection history information of each device of the plant facility and the history information as the construction history information into a database for each device. The inspection / update time is reviewed by re-evaluating the deterioration rate of each device, and the inspection / update time described in the standard plan document is corrected. Proposal support system for plant equipment maintenance plan.   The similar device information extracting unit divides the function of each device into the function that each device is actually operating as a large category, and then divides the use condition of each device as a medium category and codes it as a common code, The proposal support system of the plant equipment maintenance plan according to any one of claims 1 to 3, wherein the system is stored in the storage unit.   The storage unit includes at least the specification information, the operation history information, the use history information, the update history information, the inspection history information, and the construction history information of each device, and at least the inspection history information of the similar device. The plant facility maintenance plan suggestion support system according to any one of claims 1 to 4, wherein the system is a medical record system that centrally manages the construction history information for each plant facility. Based on the design information of the plant equipment, further comprising a degradation mode extraction unit that extracts a degradation mode for each material used in the component equipment of the plant equipment,
The plan document revision unit is obtained by adding the deterioration mode with a predetermined weight for each deterioration factor when neither the inspection history information nor the construction history information is extracted by the similar device information extraction unit. 2. The plant facility maintenance plan proposal support system according to claim 1, wherein the inspection / update timing of the standard plan document is revised based on a life expectancy value. The deterioration mode is stored in the storage unit as a past performance together with a combination condition of deterioration factors corresponding to the deterioration mode,
The plan document revision unit, when there is a degradation mode in the storage unit that matches a combination condition of degradation factors obtained based on the target plant design information, based on the weighting factor associated with the degradation mode 7. The plant facility maintenance plan suggestion support system according to claim 6, wherein a life prediction value is obtained. The deterioration mode is stored in the storage unit as a past performance together with a combination condition of deterioration factors corresponding to the deterioration mode,
When the storage unit has a degradation mode that partially matches the degradation factor combination condition obtained based on the target plant design information, the plan document revision unit is closest to the degradation factor combination condition. 7. The plant facility maintenance plan proposal support system according to claim 6, wherein a life expectancy value is obtained based on the weighting factor associated with the deterioration mode having factor combination conditions.   When there are a plurality of deterioration modes having the combination conditions of the closest deterioration factors, the plan data revision unit is based on the previous weighting factor associated with the deterioration mode that provides a life prediction value with a smaller relative error. 9. The system according to claim 8, wherein a life prediction value is obtained. The deterioration mode is stored in the storage unit as a past performance together with a combination condition of deterioration factors corresponding to the deterioration mode,
The plan document revision unit, when there is no degradation mode in the storage unit that matches a combination condition of degradation factors obtained based on the target plant design information, the weighting calculated based on the target plant design information 7. The plant facility maintenance plan proposal support system according to claim 6, wherein a predicted life value is obtained based on a coefficient. A plant equipment maintenance plan proposal support method for creating planning data for plant equipment maintenance work,
Creating a standard plan material that serves as a basis for the plan material based on at least specification information and operation history information of each device provided in the plant facility; and
Based on the use record information and update record information of each device, the step of setting the inspection and update time of each device for each device;
Based on the inspection history information and construction history information of each device, the step of re-evaluating and resetting the inspection / update time of each device for each device;
Extracting at least one of inspection history information and construction history information of similar equipment having the same function of each of the equipments provided in other plant facilities and different in at least one of the structure and name; and
Based on the inspection / update time reset for each device by the update time resetting unit, and at least one of the inspection history information and the construction history information extracted by the similar device information extraction unit, the standard A process to revise the inspection and renewal time of the plan materials;
At least the specification information, the operation history information, the usage record information, the update record information, the inspection history information, and the construction history information of each device, and at least the inspection history information and the construction history information of the similar device And a process of storing the information in association with each of the devices and the similar devices, respectively. When neither the inspection history information nor the construction history information of the similar equipment can be extracted, a deterioration mode is extracted for each material used for the constituent equipment of the plant equipment based on the design information of the plant equipment. And a process of
The method further comprises a step of revising the inspection / update timing of the standard plan material based on a life prediction value obtained by adding the deterioration mode with a predetermined weight for each deterioration factor. The proposal support method of the plant equipment maintenance plan described in 1.

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