JP7560337B2 - Piping layout design system - Google Patents

Description

The present invention relates to a piping layout design system.

There are technologies that automate the design work of piping routes. For example, Patent Document 1 describes a technology for a piping route generation method that connects the start point and end point of a pipe in a design target space. Specifically, the technology disclosed generates a piping route based on candidate route point information that indicates candidate route points that are candidates for positions through which the pipe will pass in the design target space, and weighting information assigned to the candidate route point information.

JP 2017-211987 A

On the other hand, when designing piping layouts in plants, etc., it is necessary to proceed with the design from the planning stage to the detailed design stage while satisfying numerous constraints set out in requirements specifications, safety standards, etc. Therefore, when designing piping layouts in plants, etc., it is not possible to automatically generate a piping route that satisfies numerous constraints simply by determining the piping route based on candidate piping route point information and weighting information. For this reason, piping layout design in plants, etc., relies heavily on the experience and knowledge of experienced designers.

However, even an experienced designer needs a huge amount of time to design a piping route that satisfies numerous constraints, such as the conditions set out in the required specifications, the conditions set out in the safety standards, the conditions for component placement that take into account maintenance and inspection work, and the conditions for improving construction efficiency.

The present invention was made in light of the above circumstances, and aims to reduce the design burden of piping routes by automatically generating piping routes that satisfy numerous constraints.

A piping layout design system according to an embodiment for solving the above problem is a piping layout design system that generates a piping route that connects a start point and an end point of a piping. The piping layout design system includes an input unit, a storage unit, a route generation unit, a support position determination unit, and a piping member determination unit. The input unit acquires coordinate information of the start point and the end point of the piping, information on the type and weight of the fluid passed through the piping, and information on the material, length, and thickness of the piping, as specified by a designer . The storage unit stores information indicating the type of piping member that constitutes the piping according to the material, length, and thickness of the piping, information indicating the correspondence between the support interval and the weight of the piping and the weight of the fluid passed through the piping, piping layout standard information indicating the basic design conditions related to the piping layout design, and detailed design information indicating the detailed design conditions related to the piping layout design. The route generation unit generates a piping route based on the information acquired by the input unit and the information stored in the storage unit. The support position determination unit determines support positions at which support members that support the piping of the piping route generated by the route generation unit are arranged based on the information indicating the correspondence between the support interval and the weight of the piping and the weight of the fluid passed through the piping by the constant pitch span method. The piping component determination unit determines a plurality of piping components constituting the piping based on the support positions determined by the support position determination unit and information indicating the types of piping components constituting the piping according to the material, length, and thickness of the piping, and determines the type and number of support members based on the positions at which the support members are fixed determined by the support position determination unit, the weight of the piping, and the weight of the fluid passing through the piping. If the analysis result of a structural analysis system that performs at least one of a durability analysis against thermal stress, a vibration analysis of the piping caused by the passage of a fluid, and an earthquake resistance analysis does not satisfy an evaluation value for the piping route generated by the route generation unit, the piping components determined by the piping component determination unit, and the support members does not satisfy an evaluation value, the designer inputs the analysis result into the input unit to feed it back to the storage unit, and corrects or adds the conditions indicated by the piping arrangement standard information and the detailed design information. The route generation unit regenerates the piping route based on the conditions indicated by the corrected or added piping arrangement standard information and the detailed design information. The support position determination unit re-determines the support positions according to the regenerated piping route. The piping component determination unit re-determines the piping components according to the re-determined support positions, and re-determines the types and number of support members.

1 is a configuration diagram of a piping layout design system according to an embodiment. FIG. FIG. 4 is a diagram for explaining a storage unit according to the embodiment. 11 is a diagram for explaining a piping material determination unit according to the embodiment; FIG. 5 is a flowchart for explaining generation of a piping route by a piping layout design system according to an embodiment. 1 is a diagram showing an example of a piping route generated by a piping layout design system according to an embodiment; FIG. 13 is a diagram showing an example of a table showing the number of each component generated by the piping layout design system according to the embodiment.

(Embodiment 1)
A piping layout design system according to an embodiment will be described below with reference to the drawings. The piping layout design system is a device that automatically generates a route for arranging piping (hereinafter, piping route). The piping layout design system can also be applied to electrical wiring design, duct layout design for air conditioning equipment, etc., but here, a case where the piping layout design system is applied to layout design of piping that carries a fluid (gas, liquid, etc.) in the plant field will be described.

The piping layout design system is a computer equipped with a CPU, memory, etc., and operates based on piping layout design application software stored in the memory.

Figure 1 is a functional configuration diagram of a piping layout design system 1. The piping layout design system 1 includes a storage unit 10, an input unit 20, a route generation unit 30, a support position determination unit 40, a piping component determination unit 50, a material quantity calculation unit 60, and an output unit 70.

As shown in FIG. 2, the memory unit 10 stores layout space information 11, dedicated layout space information 12, existing piping information 13, piping layout criteria information 14, detailed design information 15, and operation and maintenance information 16.

The layout space information 11 is 3D CAD information that indicates the structure of the building. The layout-only space information 12 is 3D CAD information that indicates the area in the building where piping is to be placed. The existing piping information 13 is 3D CAD information that indicates the location of existing piping.

The piping layout standard information 14 is information that indicates basic design conditions in piping layout design. This piping layout standard information 14 includes conditions that specify the distance between the piping and the floor/ceiling/wall, the distance between parallel piping, the distance between the piping and the cable rack, the selection of bent pipes for the piping, the diameter of the through hole when a through hole is provided in the piping, and the position of the through hole in an area with a high radiation dose in the case of a nuclear power plant. Note that a bent pipe is a member obtained by bending a straight pipe. The piping layout standard information 14 also includes separation conditions for the safety system. The separation conditions for the safety system are, for example, a condition that, when an accident occurs in the piping route of the first system, the piping route of the first system is switched to the piping route of the second system, and the piping route of the first system and the piping route of the second system are arranged to be separated by a wall or the like. This information is set according to the type of fluid to be passed through the piping, etc.

Detailed design information 15 is information that indicates detailed design conditions. This detailed design information 15 includes conditions such as the length of straight pipes (straight sections of piping) before and after the instruments and orifices, construction error, piping gradient, and distance to other equipment. Detailed design information 15 also includes design conditions based on the experience and knowledge of experienced designers. Furthermore, detailed design information 15 also includes concentrated placement conditions when there are multiple pipes.

Operation and maintenance information 16 is information that indicates the conditions for suitable positions for maintenance and inspection of instruments that require visual inspection, the conditions for suitable positions for operating parts that require operation, etc. Instruments that require visual inspection are flow meters, barometers, etc. Parts that require operation are valves such as motorized valves and manual valves, etc. Operation and maintenance information 16 includes conditions such as the height of instruments that are easy for maintenance personnel to see, the height and orientation of valves that are easy for maintenance personnel to operate, and the distance between instruments and valves, etc. and walls. Operation and maintenance information 16 also includes information on prohibited placement areas. Prohibited placement areas are areas where the placement of piping is prohibited, such as near passageways and storage areas for hazardous materials, and areas necessary for maintenance work on valves, etc.

The input unit 20 is composed of a touch panel, a keyboard, etc. The input unit 20 displays 3D CAD information of the building on the touch panel screen, and acquires coordinate information of the start and end points of the piping as specified by the designer. The input unit 20 also displays a list of the type and weight of the fluid to be passed through the piping, the piping material, the piping thickness, etc. on the touch panel screen, and acquires this information as specified by the designer. Furthermore, when there are multiple pipes, the input unit 20 acquires a priority order that determines which pipes should be given priority for placement as specified by the designer.

The route generation unit 30 generates a piping route from the coordinates indicating the start point of the piping to the coordinates indicating the end point based on the piping layout standard information 14, the detailed design information 15, the operation and maintenance information 16, and the layout space information 11. In addition, when generating multiple piping routes, the route generation unit 30 generates a piping route for each of the multiple pipes so that the layout positions of the multiple pipes do not overlap (do not interfere with) each other.

The route generation unit 30 also generates a piping route on the assumption that the piping component determination unit 50, which will be described later, will select an elbow component. An elbow component is a component that constitutes a bent portion of a pipe. An elbow component is a component that connects straight pipes together, and is used to change the angle or gradient of a pipe. The route generation unit 30 generates a piping route that employs bent pipes to reduce the number of elbow components and welding points in the pipe.

In addition, when generating a piping route that penetrates a floor, ceiling, and wall, the route generation unit 30 generates a three-dimensional shape model that indicates the positions, sizes, etc. of the through holes to be formed in the floor, ceiling, and wall, and a summary list of the through holes.

The support position determination unit 40 determines support positions at which support members that support the pipe are placed based on the constant pitch span method (also called the standard support interval method). This support position determination unit 40 determines support positions at which support members that support the pipe are placed based on the weight of the pipe and the weight of the fluid passing through the pipe. For example, the support position determination unit 40 determines support positions to support areas near the start and end points of the pipe where load is concentrated, such as bends and branches, and determines support positions by the constant pitch span method based on a standard span (the distance between a support position and an adjacent support position) that is preset for straight pipe sections and bent pipe sections.

In addition, when multiple piping routes generated by the route generation unit 30 are adjacent to each other or run parallel to each other, the support position determination unit 40 determines, as a support position, a position at which two or more of the multiple piping routes can be supported by one support position. Details will be described later.

The piping component determination unit 50 determines the length of each of the multiple components that make up the piping, based on the piping route generated by the route generation unit 30 and the preset transportation conditions. For example, the piping component determination unit 50 determines the length of each of the multiple components that make up the piping, so that the length of each component is 10 m or less. The piping component determination unit 50 also determines the length of each of the multiple components that make up the piping, so that the weight of each component is 100 kg or less.

The piping component determination unit 50 also determines the support members that support the piping based on the weight of the piping, the weight of the fluid passing through the piping, and the location where the support members that support the piping are fixed. As shown in FIG. 3, the piping component determination unit 50 determines the support members based on the fixing location (floor, ceiling, wall, etc.), the number of pipes to be supported, the weight of the piping and the fluid passing through the piping, etc.

The quantity calculation unit 60 calculates the quantity of each component determined by the piping component determination unit 50.

The output unit 70 is configured with a display or a printing device. The output unit 70 displays a 3D CAD image showing the piping route generated by the route generation unit 30 and the positions of the support members determined by the support position determination unit 40. The output unit 70 also outputs the number of each member tallied by the material quantity tally unit 60.

Next, the generation of piping routes by the piping layout design system 1 according to the embodiment will be described with reference to the flowchart shown in FIG.

First, the route generation unit 30 acquires the piping route generation conditions required for generating a piping route (step S11). This route generation unit 30 acquires the layout space information 11, layout dedicated space information 12, existing piping information 13, piping layout criteria information 14, detailed design information 15, and operation and maintenance information 16 from the storage unit 10. In addition, the route generation unit 30 acquires coordinate information of the start and end points of the piping, information on the type and weight of the fluid to be passed through the piping, information on the material of the piping, the thickness of the piping, and information on the priority order of the piping layout via the input unit 20.

Next, the route generation unit 30 generates a piping route (first piping route) for the piping with the highest priority (step S12). The route generation unit 30 identifies the piping with the highest priority specified by the designer. The route generation unit 30 then generates a first piping route from the start coordinates of the piping to the end coordinates in the 3D CAD information of the building specified by the designer, so as to satisfy the conditions specified in the piping layout criteria information 14, detailed design information 15, and operation and maintenance information 16.

Based on the layout space information 11, the route generation unit 30 generates the shortest route from the coordinates indicating the start point of the piping to the coordinates indicating the end point as a tentative first piping route. The route generation unit 30 generates the tentative first piping route by avoiding prohibited placement areas. Next, the route generation unit 30 determines the coordinates for placing the piping by modifying the tentative first piping route generated by the shortest route so as to satisfy the conditions indicated in the piping layout standard information 14, the detailed design information 15, and the operation and maintenance information 16, and generates the final first piping route.

In addition, if it is necessary to place instruments that require visual confirmation and parts that require operation along the piping route from the start point to the end point, the designer can set in advance via the input unit 20 the coordinates at which the instruments that require visual confirmation and parts that require operation are to be placed. In this case, the route generation unit 30 generates the first piping route so as to pass through the coordinates of the instruments that require visual confirmation and parts that require operation.

When existing piping information 13 is available, the route generation unit 30 generates a first piping route while avoiding the existing piping area. In addition, when a dedicated space for placing piping is set within a building, the route generation unit 30 generates a first piping route within the dedicated placement space based on the dedicated placement space information 12.

Next, the route generation unit 30 generates a piping route (second piping route) for the piping with the second highest priority (step S13). The route generation unit 30 generates a second piping route from the start coordinates of the piping to the end coordinates in the 3D CAD information of the building specified by the designer, so as to satisfy the conditions specified in the piping layout criteria information 14, detailed design information 15, and operation and maintenance information 16. The route generation unit 30 generates the second piping route, avoiding the area of the first piping route and the area of existing piping.

Next, when generating a piping route with the third highest priority, the route generation unit 30 generates a third piping route while avoiding the areas of the first and second piping routes and the existing piping areas. The route generation unit 30 generates the fourth and subsequent piping routes in the same manner.

Next, the support position determination unit 40 determines support positions at which support members that support the pipes are placed based on the constant pitch span method (step S14). The support interval (the interval between any support position that supports a pipe in one pipe route and an adjacent support position) is stored in advance in the storage unit 10 according to the weight of the pipes, the weight of the fluid passed through the pipes, etc. When multiple pipes are arranged adjacent to each other or running parallel to each other, the support position determination unit 40 determines a position where two or more of the multiple pipes can be supported by one support position as a support position.

A specific example will be described. When the constant pitch span method is adopted, a standard span for support spacing and an allowable movement range for the support position are set. The support position determination unit 40 first determines a support position for each of multiple pipes arranged in parallel based on the constant pitch span method. Next, the support position determination unit 40 determines a common support position common to the multiple pipes by moving the support position of each of the multiple pipes within the allowable movement range (e.g., 20%). By setting the common support position as the support position, the support position determination unit 40 reduces the number of support members along the entire length of the piping route.

Next, the piping component determination unit 50 determines the length of the components based on the preset transportation conditions (length and weight of the components, etc.) (step S15). For example, the piping component determination unit 50 determines the length of the components that make up the piping so that the length of each of the multiple components that make up the piping is 10 m or less. The piping component determination unit 50 also determines the length of the components so that the weight of each component is 100 kg or less. The piping component determination unit 50 determines the length of the components so that the support positions determined by the support position determination unit 40 are located near the ends of each component. The types of components that make up the piping are stored in advance in the storage unit 10 according to the material, length, thickness, etc. of the piping. The piping component determination unit 50 determines the components that make up the piping from among the pre-stored components according to the material, length, thickness, etc. of the piping.

The piping component determination unit 50 also determines the support members that support the piping based on the weight of the piping, the weight of the fluid passing through the piping, and the location where the support members that support the piping are fixed. As shown in FIG. 3, the piping component determination unit 50 determines the support members according to the fixing location (floor, ceiling, wall, etc.), the number of pipes to be supported, the weight of the piping and the fluid passing through the piping, etc.

Next, the quantity calculation unit 60 calculates the number of each component (components constituting the piping, support components) determined by the piping component determination unit 50 (step S16).

Next, the output unit 70 displays a 3D CAD image showing the piping route generated by the route generation unit 30 and the positions of the support members determined by the support position determination unit 40 (step S17). FIG. 5 is an example of a 3D CAD image showing the output piping route and the positions of the support members. FIG. 5 is an example of a 3D CAD image showing a piping route in which there is a branch with two end points EP1, EP2 set for one start point SP. The piping PP is supported by support members SPP at a predetermined interval. The output unit 70 can also display an image in which the 3D CAD image of the building and the 3D CAD image showing the piping route and the positions of the support members are superimposed.

The output unit 70 also outputs the number of each component (components constituting the piping, support components) tallied by the material quantity tallying unit 60. Figure 6 is an example of a table showing the output number of each component.

(Variation 1)
In the description of the first embodiment, the case where the designer specifies the material of the pipe, the thickness of the pipe, and the priority of the pipe layout has been described. As another embodiment, the pipe layout design system can automatically determine the material of the pipe, the thickness of the pipe, and the priority of the pipe layout based on the information of the type and weight of the fluid to be passed through the pipe specified by the designer. Information in which the type and weight of the fluid to be passed through the pipe and the material of the pipe, the thickness of the pipe, the priority of the pipe layout, and the like are associated is stored in the storage unit 10. The route generating unit 30 acquires the material of the pipe, the thickness of the pipe, the priority of the pipe layout, and the like corresponding to the type and weight of the fluid to be passed through the pipe input by the designer from the storage unit 10, and determines the material of the pipe, the thickness of the pipe, the priority of the pipe layout, and the like. Then, the route generating unit 30 selects the pipe layout standard information 14 and the detailed design information 15 to be applied according to the type and weight of the fluid to be passed through the pipe, the determined material of the pipe, the thickness of the pipe, and the like. In addition, the route generating unit 30 determines the priority for determining the first piping in the flowchart shown in FIG. 4 based on information that associates the type and weight of the fluid passing through the piping with the priority of the piping arrangement.

(Variation 2)
The support position determination unit 40 can also determine whether the existing pipe is supported at a predetermined pitch based on the fixed pitch span method. Specifically, the designer specifies the existing pipe to be determined. The support position determination unit 40 acquires the existing pipe information 13 from the storage unit 10. The support position determination unit 40 determines whether the existing pipe is supported at a predetermined pitch based on the support position information of the existing pipe included in the existing pipe information 13 and the support interval specified according to the weight of the pipe and the fluid passing through the pipe, based on the fixed pitch span method. If the support interval of the existing pipe does not satisfy the required condition, the support position determination unit 40 generates a support position to be added.

(Variation 3)
The piping layout design system 1 can also generate a route for arranging an electric wiring cable or an air conditioning duct when the piping layout reference information 14 or the detailed design information 15 includes a condition that requires an electric wiring cable or an air conditioning duct. For example, when an instrument that requires a power supply is present in the middle of a piping route, the route generating unit 30 acquires the coordinates of a position where a distribution board that is stored in advance is installed from the storage unit 10. The route generating unit 30 generates a wiring route for an electric wiring cable by setting the coordinates of the position where the relevant instrument is installed as the start point coordinates and the coordinates of the position where the distribution board is installed as the end point coordinates.

The total length of piping routes in a plant can exceed 1,000 km. The number of support members that support this piping can exceed 100,000. The number of instruments and valves can also exceed 1,000. If such complex piping design were to rely on the experience and knowledge of an experienced designer, it would take an enormous amount of time.

As described above, the piping layout design system 1 according to this embodiment can automatically generate piping routes that satisfy numerous constraints indicated by piping layout criteria information, detailed design information, and the like, thereby reducing the design burden of piping routes.

In addition, the piping layout design system 1 according to this embodiment can automatically generate support positions for piping based on the weight of the piping, etc., thereby reducing the design burden for the support positions for piping.

In addition, when multiple piping routes are adjacent or run parallel, the piping layout design system 1 according to this embodiment can automatically generate support positions that can support multiple pipes at a single support position, thereby reducing the number of support members and the construction burden.

In the above explanation, the case of arranging pipes inside a building has been described, but the pipe layout design system 1 can also be applied to generating pipe routes outside a building. In this case, three-dimensional CAD information showing the structure within the site is used as the layout space information 11.

In addition, in the above description, the memory unit 10 is provided within the piping layout design system 1, but the memory unit 10 may be provided outside the piping layout design system 1 and connected to the piping layout design system 1 via a network.

In addition, in the explanation of the first embodiment, the piping arrangement reference information 14, the detailed design information 15, and the operation and maintenance information 16 are stored as fixed information in the memory unit 10, but it is also possible to allow the designer to add or modify any information.

In the description of the first embodiment, the input unit 20 is a touch panel, a keyboard, or the like, but the input unit 20 may be an interface such as the Internet or a USB. The input unit 20 may acquire information in file format, such as coordinate information of the start and end points of multiple pipes, the type and weight of the fluid passing through the pipes, and the material of the pipes.

In addition, in the explanation of the generation of the piping route using FIG. 4, the case where the support positions are determined (step S14) and then the lengths of the components are determined (step S15) is explained, but the support positions may be determined after the lengths of the components are determined. Alternatively, the support positions may be modified so that each component can be supported after the lengths of the components are determined.

The three-dimensional CAD information of the layout space information 11 and the existing piping information 13 may be information composed of point cloud data of the existing plant status (existence of walls, columns, etc., existing equipment, etc.) acquired using a three-dimensional laser scanner. Point cloud data is a collection of three-dimensional coordinate points, and can be acquired by photographing buildings, existing equipment, existing piping, etc. from multiple positions using a three-dimensional laser scanner. Point cloud data of buildings, existing equipment, existing piping, etc. can represent the three-dimensional shapes of buildings, existing equipment, existing piping, etc. Point cloud data of walls, ceilings, floors, columns, beams, etc. can be grouped and attribute information of the layout space information 11 is added, so that it can be treated as three-dimensional CAD information of the layout space information 11 of the existing plant. Similarly, point cloud data of existing cable racks, air conditioning ducts, steel frames, support members, equipment, electrical panels, etc. can also be treated as three-dimensional CAD information by adding attribute information of each.

(Embodiment 2)
Here, a case where information such as the piping arrangement standard information 14 and the detailed design information 15 is added or corrected will be described.

After the piping route is generated using the piping layout design system 1 and the support positions for placing the support members that support the piping are determined, a structural analysis system is used to perform a strength evaluation (material mechanics check) of the piping for the generated piping route. For example, the structural analysis system is used to perform a durability analysis against thermal stress, a vibration analysis of the piping caused by the passage of fluid, an earthquake resistance analysis, etc.

We will use a durability analysis against thermal stress as an example. In this analysis, the environmental temperature and the temperature of the fluid passing through the pipe are changed from the maximum temperature to the minimum temperature specified in the specifications, and an analysis is performed to see whether the thermal expansion or contraction of the pipe places a load on the pipe that exceeds the standard value. For example, if the bend in the pipe is set to the minimum bend radius specified by the design standards, the thermal expansion of the pipe due to the heat of the fluid may cause the internal stress of the pipe to exceed the standard value. If the structural analysis system outputs an analysis result indicating that the internal stress of the pipe exceeds the standard value, the design standards that stipulate the minimum radius of the bend must be revised.

The piping layout design system 1 feeds back the analysis results of the structural analysis system to the piping layout standard information 14, detailed design information 15, etc. In this case, the designer inputs the analysis results of the structural analysis system, such as durability analysis against thermal stress, vibration analysis of the piping caused by the passage of fluid, and earthquake resistance analysis, to the input unit 20 as additional information for the design conditions of the piping route. The input unit 20 stores the additional information in the storage unit 10. As a result, the conditions indicated by the piping layout standard information and the detailed design information are modified or added. The piping layout design system 1 then adds information on the analysis results of the structural analysis system (additional information) and generates a piping route based on the piping layout standard information 14, detailed design information 15, and operation and maintenance information 16.

In this way, by repeating the process of generating a piping route using the piping layout design system 1, performing structural analysis using the structural analysis system, modifying or adding conditions indicated by the piping layout criteria information and detailed design information, and generating a piping route using the piping layout design system 1, a highly reliable piping layout design can be performed.

Although the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention and its equivalents described in the claims.

Reference Signs List 1 piping layout design system 10 storage unit 11 layout space information 12 layout dedicated space information 13 existing piping information 14 piping layout standard information 15 detailed design information 16 operation and maintenance information 20 input unit 30 route generation unit 40 support position determination unit 50 piping component determination unit 60 material quantity calculation unit 70 output unit

Claims (14)

A piping layout design system that generates a piping route that connects a start point and an end point of a piping,
an input unit for acquiring coordinate information of the start point and end point of the pipe, information on the type and weight of a fluid to be passed through the pipe, and information on the material, length, and thickness of the pipe, as specified by a designer;
a storage unit that stores information indicating the type of piping components constituting the piping according to the material, length, and thickness of the piping, information indicating a correspondence relationship between a support interval and the weight of the piping and the weight of a fluid passed through the piping, piping layout standard information indicating basic design conditions related to a piping layout design, and detailed design information indicating detailed design conditions related to a piping layout design;
a route generating unit that generates the piping route based on the information acquired by the input unit and the information stored in the storage unit;
a support position determination unit that determines support positions at which support members for supporting the pipes of the piping route generated by the route generation unit using a constant pitch span method based on information indicating a correspondence relationship between the support intervals, the weight of the pipes, and the weight of a fluid passed through the pipes; and
a piping member determination unit that determines a plurality of piping members constituting the piping based on the support positions determined by the support position determination unit and information indicating the types of piping members constituting the piping according to the material, length, and thickness of the piping, and that determines the types and number of the support members based on the positions at which the support members are fixed determined by the support position determination unit, the weight of the piping, and the weight of a fluid passed through the piping,
When an analysis result of a structural analysis system that performs at least one of a durability analysis against thermal stress, a vibration analysis of the piping caused by the passage of a fluid, and an earthquake resistance analysis does not satisfy an evaluation value with respect to the piping route generated by the route generation unit, the piping components determined by the piping component determination unit, the designer inputs the analysis result into the input unit, thereby feeding it back to the storage unit and correcting or adding conditions indicated by the piping arrangement standard information and the detailed design information,
the route generation unit regenerates the piping route based on the revised or added piping arrangement reference information and the conditions indicated by the detailed design information;
the support position determination unit re-determines a support position according to the regenerated piping route,
the piping member determination unit redetermines the piping members in accordance with the redetermined support positions, and also redetermines types and numbers of the support members.
Piping layout design system. the storage unit stores arrangement space information, which is three-dimensional CAD information indicating a structure of a building in which the piping route is arranged;
the route generation unit generates the piping route, and when the piping route penetrates a floor, a ceiling, and a wall of the building, generates a three-dimensional shape model indicating positions and sizes of through holes according to the thickness of the piping, the type of fluid passing through the piping, and the floor, ceiling, and wall of the building, and generates a summary list of the through holes;
The piping layout design system according to claim 1 . the storage unit stores information associating a type and weight of a fluid to be passed through the piping with a priority of a piping route generation by the route generation unit;
When the piping routes indicated by the coordinate information of the start point and the end point acquired by the input unit are multiple, the route generation unit determines a priority order for the piping route generation based on the information of the type and weight of the fluid to be passed through the piping acquired by the input unit and in accordance with the correspondence relationship stored in the storage unit.
The piping layout design system according to claim 1 or 2. the route generation unit generates the piping route having a branch point in the piping when the input unit acquires coordinates indicating a plurality of end points for a coordinate indicating one start point of the piping.
The piping layout design system according to any one of claims 1 to 3. When generating a plurality of piping routes, the route generation unit generates the piping route for each of the plurality of pipings such that the arrangement positions of the plurality of pipings do not overlap with each other.
The piping layout design system according to any one of claims 1 to 4. the route generation unit generates the piping route using a bent pipe in order to reduce the number of elbow members constituting the bent portion of the piping and the number of welding points of the piping.
The piping layout design system according to any one of claims 1 to 5. the route generation unit generates the piping route in which the piping is placed within the dedicated space when a dedicated space for placing the piping is set;
The piping layout design system according to any one of claims 1 to 6. The storage unit stores operation and maintenance information indicating a position condition suitable for maintenance and inspection of an instrument that requires visual confirmation and a position condition suitable for operation of a part that requires operation;
the route generation unit arranges the instruments that require visual confirmation and the parts that require operation at positions that satisfy the conditions indicated in the operation and maintenance information;
The piping layout design system according to any one of claims 1 to 7. When the plurality of pipes are disposed adjacent to each other, the support position determination unit determines, as a support position, a position at which two or more pipes among the plurality of pipes can be supported at one support position.
The piping layout design system according to claim 1 or 2. The support position determination unit determines whether or not the existing pipe is supported at a predetermined pitch based on a constant pitch span method.
The piping layout design system according to any one of claims 1 to 2 and claim 9. a piping member determination unit that determines a length of a member constituting the piping based on the piping route generated by the route generation unit and a transportation condition set in advance;
The piping layout design system according to any one of claims 1 to 10. The piping layout design system according to claim 1 or 2, further comprising a quantity tallying unit that tallies the number of each of the support members determined by the piping member determination unit. the storage unit stores layout space information, which is three-dimensional CAD information indicating a structure of a building in which the piping route is arranged , and coordinates of a position where a distribution board is installed within the layout space;
the route generation unit, when the piping arrangement reference information or the detailed design information includes a condition that an electric wiring cable is required for an instrument along the generated piping route, generates a route for arranging an electric wiring cable with the coordinates of a position where the instrument is arranged as a start point coordinate and the coordinates of a position where the distribution board is installed as an end point coordinate.
The piping layout design system according to any one of claims 1 to 12. The three-dimensional CAD information includes point cloud data captured by a three-dimensional laser scanner.
The piping layout design system according to claim 2 .

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