CN113891616B - Thermal management system of deep long-term continuity monitoring electronic equipment - Google Patents
Thermal management system of deep long-term continuity monitoring electronic equipment Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 75
- 230000007774 longterm Effects 0.000 title claims abstract description 44
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- 230000005856 abnormality Effects 0.000 claims abstract description 44
- 238000012545 processing Methods 0.000 claims abstract description 18
- 238000007726 management method Methods 0.000 claims description 27
- 239000002826 coolant Substances 0.000 claims description 26
- 238000009434 installation Methods 0.000 claims description 26
- 238000004458 analytical method Methods 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 10
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- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20281—Thermal management, e.g. liquid flow control
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- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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Abstract
The invention relates to a heat management system of deep long-term continuity monitoring electronic equipment, belonging to the field of deep long-term continuity monitoring systems; the system comprises a ground system, a deep ground system, an abnormality processing system and a power supply system, wherein the ground system comprises a cooling liquid power output control module (1) and a cooling liquid heat exchange control module (5); the deep ground system comprises a cooling liquid conveying pipe (2), a cooling liquid absorbing pipe (3) and a heat manager (7); the heat manager (7) is respectively communicated with the cooling liquid power output control module (1) and the cooling liquid heat exchange control module (5) through the cooling liquid conveying pipe (2) and the cooling liquid absorbing pipe (3), and the cooling liquid power output control module (1) is communicated with the cooling liquid heat exchange control module (5); the device also comprises a support tube (8), wherein the support tube (8) is connected with the thermal manager (7), and the thermal manager (7) and the support tube (8) are embedded into the geological layer. The invention improves the working temperature of standard electronic instrument.
Description
Technical Field
The invention belongs to the field of electronic equipment protection and cooling of deep long-term continuity monitoring (such as geological change, physical field change, natural disaster generation mechanism and the like) and control systems, and particularly relates to a cooling system of deep long-term continuity monitoring heating electronic equipment.
Background
The deep dynamics process of the earth is one of the major problems of deep scientific research. The evolution process of the earth in deep part is closely related to global changes, resource environments, geological disasters and the like. The unique advantages of the in-well monitoring system have prompted new scientific discoveries. The current well measurement can only be carried out for a short time, or shallow monitoring can not obtain the long-term change characteristics and the cumulative effect of deep rock, but long-term continuous observation data are required to be used as support for the earth foundation scientific research and the deep dynamic process analysis. The long-time migration characteristics of faults, the occurrence mechanism of earthquakes, the change rule of volcanic magma bags and volcanic channels and the like are researched by means of observation stations on the ground surface. The deep well platform is used to deep into the earth to observe the magnetic field in close and real time, and the micro-variation information which cannot be realized by the earth surface observation can be obtained due to the obvious advantages of high signal-to-noise ratio, high resolution and the like.
The method is deep into the earth, and can directly monitor weak change of physical field and accumulation process and effect of the weak change, so that the identification capability of the object in the deep of the earth can be improved, the cognition degree of details of the structure and the process in the deep of the earth can be deepened, and the method has important significance in promoting scientific development of the earth system. In order to solve the above problems, long-term continuous monitoring (monitoring time is more than or equal to 6 months) -scientific logging is required for the deep part of the earth, continuous monitoring nodes are arranged at different depths of the earth, the deep part micro-variation information of the earth and long-term accumulation effect thereof are obtained, and heavy scientific problems such as earthquake, volcanic activity, environmental variation, rock ring structure and the like caused by the deep part micro-variation accumulation effect of the earth are supported for research, however, due to the underground narrow space and the severe underground environment with high temperature (200 ℃ or more) and high pressure (1000 MPa or more), standard electronic components cannot effectively work for a long time. The use of electronic components that operate efficiently and continuously at high temperatures for long periods of time will solve the temperature problem, and no better method is currently available. Accordingly, there is a need to develop a thermal management system for deep long-term continuity monitoring electronics.
Disclosure of Invention
The invention aims to provide a heat management system of deep long-term continuity monitoring electronic equipment, which aims to solve the technical problem that a standard electronic instrument cannot continuously work for a long time in a deep (or deep) high-temperature and high-pressure environment.
In order to achieve the above purpose, the specific technical scheme of the heat management system of the deep long-term continuity monitoring electronic equipment of the invention is as follows:
The heat management system comprises a ground system, a deep ground system and an abnormality processing system, wherein the ground system, the deep ground system and the abnormality processing system are all supplied with power for transmission by a power supply system, the ground system comprises a cooling liquid power output control module, a cooling liquid heat exchange control module and a heat manager electronic equipment sensing data ground display module, and the heat manager electronic equipment sensing data ground display module is electrically connected with the cooling liquid power output control module and the cooling liquid heat exchange control module;
the deep ground system comprises a cooling liquid conveying pipe, a cooling liquid absorbing pipe and a heat manager; the heat manager is respectively communicated with the cooling liquid power output control module and the cooling liquid heat exchange control module through the cooling liquid conveying pipe and the cooling liquid absorbing pipe, and the cooling liquid power output control module is communicated with the cooling liquid heat exchange control module;
the device also comprises a support tube, wherein the support tube is mechanically connected with the thermal manager, and the thermal manager and the support tube are embedded into the geological layer.
Further, wedge grooves are formed in the outer portion of the support tube, the cooling liquid conveying tube and the cooling liquid absorbing tube are wedged into the support tube, and a fixing ring is arranged on the outer portion of the support tube and used for fastening the cooling liquid conveying tube and the cooling liquid absorbing tube on the support tube.
Further, the thermal manager comprises an electronic equipment installation area, wherein a plurality of substrates are arranged in the electronic equipment installation area in parallel, and electronic equipment is placed on the substrates; a cooling liquid turbulence channel is sleeved on the periphery of the electronic equipment installation area, the upper end of the cooling liquid turbulence channel is communicated with the cooling liquid input channel, the lower end of the cooling liquid turbulence channel is communicated with the cooling liquid output channel, and the cooling liquid input channel and the cooling liquid output channel are respectively communicated with the cooling liquid conveying pipe and the cooling liquid absorbing pipe;
a vacuum cavity is arranged at the periphery of the cooling liquid turbulence channel; the outside of the vacuum cavity is provided with a heat manager shell.
Further, the middle section of the heat manager shell is cylindrical, and the two ends of the heat manager shell are conical; the inner wall of the vacuum cavity is coated with a low-emissivity coating.
Further, the cooling liquid conveying pipe comprises an outer cooling liquid conveying pipe wall and an inner cooling liquid conveying pipe wall; the outer wall of the cooling liquid conveying pipe and the inner wall of the cooling liquid conveying pipe are coated with a heat-insulating coating with low heat conductivity, and a heat-insulating material with low heat conductivity is filled between the outer wall of the cooling liquid conveying pipe and the inner wall of the cooling liquid conveying pipe.
Further, the ground system comprises a control module, an execution module and a ground display module of sensing data of the electronic equipment of the thermal manager; the thermal manager electronic equipment sensing data ground display module is used for displaying real-time data detected by electronic equipment arranged in the underground thermal manager; the control module comprises a heat exchange control module and a cooling liquid power output control module, and the heat exchange control module is used for carrying out heat exchange and cooling on cooling liquid circulated from underground; the cooling liquid power output control module is used for controlling the flow rate and the flow velocity of the cooling liquid; the execution module comprises a heat exchange control valve and a power control valve, the heat exchange control valve is used for controlling the speed and the flow of the cooling liquid absorbed by the cooling liquid absorbing pipe to the ground, and the power control valve is used for controlling the flow and the speed of the cooling liquid entering the cooling liquid conveying pipe.
Further, the deep ground system comprises a deep ground monitoring module and a cooling liquid transportation module, wherein the deep ground monitoring module comprises a thermal manager, normal monitoring work of electronic equipment and temperature monitoring of an electronic equipment installation area in the thermal manager, the thermal manager enables the electronic equipment to normally monitor work, and the electronic equipment comprises temperature monitoring electronic equipment for the installation area; the cooling liquid conveying module comprises a cooling liquid conveying pipe and a cooling liquid absorbing pipe, the cooling liquid conveying module conveys cooling liquid to the inside of the heat manager, and the cooling liquid absorbing pipe conveys the cooling liquid which has absorbed heat to a ground system and exchanges heat in the heat exchange control module.
Furthermore, the power supply system comprises a power system module of the scientific logging system, a conventional power supply module, an emergency power supply module and a power supply adapting module, the ground system, the deep system and the abnormality processing system directly obtain electric energy from the conventional power supply module, and meanwhile, in order to prevent the failure of the whole system caused by the failure of the conventional power supply module, the invention is also provided with the emergency power supply module, the emergency power supply module is charged by the power system module of the scientific logging system, and the conventional power supply module and the emergency power supply module are also connected with the power supply adapting module so as to output various required voltages, thereby meeting the requirements of all the systems and devices.
Further, the abnormality processing system comprises a temperature abnormality, an abnormality alarm, an abnormality analysis, an abnormality feedback ground system and abnormality elimination; the method has the important function of monitoring the internal temperature of the thermal manager in the deep ground system, namely when the temperature monitoring of the installation area of the electronic equipment in the thermal manager finds that the temperature is abnormal, the deep ground monitoring module transmits an abnormal signal to a temperature abnormality module in an abnormality processing system, then the abnormal alarm abnormality analysis is carried out to feed back the abnormality to a ground system, and the ground system carries out cooling liquid circulation refrigeration speed regulation and control on a heat exchange control module and a cooling liquid power output control module in the control module according to the analysis result, so that the temperature monitoring abnormality in the deep ground monitoring module in the deep ground system is eliminated.
The heat management system of the deep long-term continuity monitoring electronic equipment has the following advantages:
1. the invention introduces thermal management into the field of deep electronic instrument continuity observation for the first time, and scientifically logs well, which is different from traditional cable logging and logging while drilling with short time discontinuity.
2. The invention designs an abnormal alarm system for automatically alarming the heat manager, improves the self-adaptability and the effectiveness of the heat management system, and optimizes the temperature control effect;
3. aiming at the problems that the temperature of the cooling liquid rises and the internal temperature control effect of the cold quantity manager is weakened due to the heat conduction phenomenon when the cooling liquid is transported to the deep ground, the heat quantity manager with a double-layer structure is designed, and the middle part is filled with heat insulation materials, so that the problems are thoroughly solved;
4. The invention effectively controls the temperature control performance of the heat manager, comprehensively improves the working temperature of standard electronic instruments, and can greatly reduce the cost of developing high-temperature chips of underground electronic instruments.
Drawings
Fig. 1 is a schematic diagram of a thermal management system of a deep long-term continuity monitoring electronic device of the present invention.
Fig. 2 is a schematic diagram showing an external structure of a thermal manager of a thermal management system of a deep long-term continuity monitoring electronic device according to the present invention.
Fig. 3 is a schematic cross-sectional view of a thermal manager of a thermal management system of a deep long-term continuity monitoring electronic device of the present invention.
FIG. 4 is a schematic diagram of support tube and coolant delivery conduit installation in an embodiment of a thermal management system for deep long term continuity monitoring electronics of the present invention.
FIG. 5 is a schematic cross-sectional view of a coolant delivery pipe of an embodiment of a thermal management system for deep long-term continuity monitoring electronics of the present invention.
FIG. 6 is a schematic diagram illustrating system operation in an embodiment of a thermal management system for deep long-term continuity monitoring electronics in accordance with the present invention
Schematic diagram.
Fig. 7 is a graph of experimental data for a 120-hour continuous experiment in which the principle verification was performed to verify the effectiveness of the present invention, and the simulated deep (downhole) high temperature was 110 ℃ (corresponding to 3000 meters underground).
Fig. 8 is a graph of experimental data for a 120-hour continuous experiment in which the principle verification was performed to verify the effectiveness of the present invention, and the simulated deep (downhole) high temperature was 130 ℃ (corresponding to 3500 meters underground).
FIG. 9 is a graph of experimental data for a 120-hour continuous experiment simulating a deep (downhole) high temperature of 150℃for 4200 meters in the subsurface, in order to verify the effectiveness of the present invention, in example 1
The figure indicates: 1. a cooling fluid power output control module; 2. a cooling liquid delivery pipe; 21. the outer wall of the cooling liquid conveying pipe; 22. a heat insulating material; 23. the inner wall of the cooling liquid conveying pipe; 3. a cooling liquid absorption tube; 4. a control and monitoring data display module; 5. the cooling liquid heat exchange control module; 6. a geological layer profile; 7. a thermal manager; 71. a cooling liquid input channel; 72. a thermal manager housing profile; 73. a vacuum chamber; 74. an electronic device mounting area (74); 75. a coolant turbulence channel; 76. electronic devices (including one or more combinations of temperature sensing electronics, pressure sensing electronics, fluxgate electronics, seismometers, etc.); 77. a cooling liquid output channel; 78. a thermal manager housing; 70. a substrate; 8. a support tube; 81. a support tube wedge-shaped groove; 82. and fixing the ring sleeve.
Detailed Description
For a better understanding of the objects, structure and function of the present invention, a thermal management system for deep long-term continuity-monitoring electronic devices is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1-6, the invention is a heat management system of deep long-term continuity monitoring electronic equipment, which is mainly used for carrying out heat management on the electronic equipment for deep long-term continuity observation, thereby improving the effective working temperature of the electronic equipment, enabling the electronic equipment to normally work at high temperature and high pressure, enabling the electronic equipment for monitoring the deep part of the earth to go deep into the earth, directly monitoring weak change of physical fields and accumulation processes and effects thereof, improving the identification capability of deep objects of the earth, deepening the cognition degree of deep structure and deep process details of the earth, and having important significance for promoting scientific development of the earth system. Therefore, the invention can lead the electronic equipment to continuously monitor for a long time under the extreme environment of high temperature and high pressure in the deep part of the earth, and set continuous monitoring nodes at different depths of the earth to acquire the information of the micro-variation in the deep part of the earth and the long-term accumulation effect thereof, and support the research of major scientific problems such as earthquake, volcanic activity, environmental variation, rock ring structure and the like caused by the accumulation effect of the micro-variation in the deep part of the earth.
As shown in fig. 1, a schematic diagram of an embodiment of a thermal management system for a deep electronic device according to the present invention. Wherein the thermal manager 7 is mechanically connected to the support pipe 8, and then the support pipe 8 is placed in the deep underground, at this time, the cooling fluid power output control module 1 sends cooling fluid into the thermal manager 7 through the cooling fluid delivery pipe 2, and the cooling fluid performs temperature control on the electronic equipment 76 mounted in the electronic equipment mounting area 74 in combination with the vacuum chamber 73 in the thermal manager 7 in the cooling fluid turbulence passage 75. Wherein the heat originates from two parts, one part is the deep external high temperature harsh environment and the other part is the heat generated by the electronic device 76 itself when operating. The first portion of heat is conducted through the thermal manager housing 78, but since the vacuum chamber 73 is provided inside the thermal manager 7, most of the heat conduction is blocked, the remaining heat is conducted to the coolant turbulence channel 75, and then the coolant in the turbulence channel takes away the heat, preventing the heat from being conducted from the outside environment into the electronic device mounting area 74, protecting the temperature of the operating environment of the electronic device 76 mounted on the substrate 70, and improving the monitoring life of the electronic device. The heat emitted when the electronic equipment 76 in the second part of the heat electronic equipment mounting area 74 operates is transferred into the coolant turbulence channel 75 in the heat manager 7 through the substrate 70 and the heat manager housing 78 around the electronic equipment mounting area 74, so that the coolant absorbs the transferred heat to transport the heat to the outside of the heat manager 7 through the coolant turbulence channel 75, enters the coolant absorption tube 3 through the coolant output channel 77, is brought to the ground by the coolant heat exchange control module 5 to exchange the coolant, is transported to the coolant power output control module 1 after the heat exchange, and is then repeatedly cooled again by sending the coolant to the heat manager 7 through the coolant delivery tube 2, and is also reused. Circulation of the functions described above the thermal manager 7 of the present invention will provide good thermal control of the environment surrounding the operation of the electronic device 76 being monitored on the substrate 70, and thus control the temperature of the electronic device mounting area 74.
As shown in fig. 2, in this embodiment, the external structure and shape of the thermal manager 7 are limited in deep ground space, and the thermal manager has a small size, which is easy to damage the electronic monitoring device, so that the external shape of the thermal manager is as follows: the middle is cylindrical, and the two ends are conical, so that the thermal manager is not easy to clamp on the geological layer 6 or the well wall in the installation system process, and the thermal manager is made of high-strength high-hardness materials such as titanium alloy, so that the thermal manager continuously works for a long time under high temperature and high pressure.
As shown in fig. 3, the heat manager 7 in this embodiment is mainly composed of four layers of structures, the first part is an outermost heat manager housing 78, the second part is a middle vacuum chamber 73 for preventing external heat from being rapidly conducted inside the heat manager 7 through heat conduction, the third part is a cooling fluid turbulence channel 75 for enabling cooling fluid to be in a turbulence state so as to enable the cooling fluid to take away more heat, the fourth part is an innermost electronic device mounting area 74 and a substrate 70 for mounting electronic devices 76 for long-term continuous monitoring, and a cooling fluid input channel and a cooling fluid output channel 77 are respectively channels for enabling cooling fluid to flow into and flow out of the heat manager 7. The surfaces of the vacuum chamber 73 are coated with a low emissivity coating to minimize the transfer of external ambient heat to the electronics mounting area 74. The substrate 70 on which the electronic device 76 is mounted is made of a material with a high thermal conductivity so as to transfer heat generated by the operation of the electronic device 76 to the cooling liquid.
As shown in fig. 4, a schematic diagram of the installation of the support pipe and the cooling liquid conveying pipeline in the embodiment of the invention; since the present invention is a heat management system of a deep long-term continuity monitoring electronic device applied to deep long-term continuity observation (monitoring time is 6 months or more), the installation of the coolant delivery pipe 2 and the coolant absorption pipe 3 with the support pipe 8 is important. Wedge grooves 81 are formed on the outside of the support pipe 8, the coolant delivery pipe 2 and the coolant absorption pipe 3 are wedged inside the support pipe 8, and then the coolant delivery pipe 2 and the coolant absorption pipe 3 are fastened to the support pipe 8 by installing a fixing ring 82 on the outside of the support pipe 8 to prevent falling off.
As shown in fig. 5, which is a schematic cross-sectional view of a cooling liquid conveying pipe in the embodiment of the present invention, since the present invention is a heat management system for deeply and continuously monitoring electronic equipment for long-term continuity, the temperature of the cooling liquid when entering into the heat manager 7 should be as low as possible, and the problem is solved from two aspects, one aspect is that the cooling liquid power output control module 1 on the ground increases the cooling liquid input speed, shortens the circulation period of the cooling liquid, accelerates the heat carried by the cooling liquid in the heat manager 7, and carries out special processing treatment on the cooling liquid conveying pipe 2, and the outer wall 21 of the cooling liquid conveying pipe and the inner wall 23 of the cooling liquid conveying pipe are coated with a heat insulation coating with low heat conductivity, and a heat insulation material 22 with low heat conductivity is filled between the two pipe walls, so as to prevent the cooling liquid from rising temperature in the process from the cooling liquid conveying pipe 2 to the heat manager 7, and to enable the cooling liquid to take away more heat in the heat manager 7, thereby enabling the electronic monitoring equipment to continuously monitor for long term, and obtain geological change data.
As shown in fig. 6, there are four systems, namely, a ground system, a deep ground system, a power supply system, and an abnormality processing system, in which the power supply system provides power transmission for the other three systems.
The ground system comprises a control module, an execution module and a ground display module of sensing data of electronic equipment of the thermal manager. The ground display module of the sensing data of the electronic equipment of the thermal manager is used for displaying real-time data detected by the electronic equipment arranged in the underground thermal manager; the control module comprises a heat exchange control module and a cooling liquid power output control module, and the heat exchange control module is used for carrying out heat exchange and cooling on cooling liquid circulating from underground; the cooling liquid power output control module is used for controlling the flow rate and the flow velocity of the cooling liquid; the execution module comprises a heat exchange control valve and a power control valve, the heat exchange control valve is used for controlling the speed and the flow of the cooling liquid absorbed by the cooling liquid absorbing pipe to the ground, and the power control valve is used for controlling the flow and the speed of the cooling liquid entering the cooling liquid conveying pipe.
The deep ground system comprises two modules, namely a deep ground monitoring module and a cooling liquid transportation module, wherein the deep ground monitoring module comprises a thermal manager, normal monitoring work of electronic equipment and temperature monitoring of an electronic equipment installation area in the thermal manager, the thermal manager enables the electronic equipment to normally monitor work, and the electronic equipment comprises temperature monitoring electronic equipment for the installation area. The cooling liquid conveying module comprises a cooling liquid conveying pipe and a cooling liquid absorbing pipe, wherein the cooling liquid conveying pipe conveys cooling liquid inside the heat manager, and the cooling liquid absorbing heat is conveyed to the ground system by the cooling liquid conveying pipe, and heat exchange is carried out in the heat exchange control module.
The power supply system comprises four modules, namely a power system module of the scientific logging system, a conventional power supply module, an emergency power supply module and a power supply adaptation module, wherein the ground system, the deep system and the abnormality processing system directly obtain electric energy from the conventional power supply module, and meanwhile, in order to prevent the failure of the whole system caused by the failure of the conventional power supply module, the invention is also provided with the emergency power supply module which is charged by the power system module of the scientific logging system, and the conventional power supply module and the emergency power supply module are also connected with the power supply adaptation module so as to output various required voltages, thereby meeting the requirements of all the systems and devices.
The abnormality processing system comprises a temperature abnormality, an abnormality alarm, an abnormality analysis, an abnormality feedback ground system and an abnormality elimination; the method has the important function of monitoring the internal temperature of the thermal manager in the deep ground system, namely when the temperature monitoring of the installation area of the electronic equipment in the thermal manager finds that the temperature is abnormal, the deep ground monitoring module transmits an abnormal signal to a temperature abnormality module in an abnormality processing system, then the abnormal alarm abnormality analysis is carried out to feed back the abnormality to a ground system, and the ground system carries out cooling liquid circulation refrigeration speed regulation and control on a heat exchange control module and a cooling liquid power output control module in the control module according to the analysis result, so that the temperature monitoring abnormality in the deep ground monitoring module in the deep ground system is eliminated.
Working principle:
The ground system comprises a control module, an execution module and a heat manager electronic equipment sensing data ground display module, wherein the cooling liquid power output control module firstly sends an instruction to start the execution module, a power control valve is opened, cooling liquid enters a cooling liquid conveying pipe, so that the cooling liquid enters the heat manager to perform temperature control, the electronic equipment of the deep detection module normally monitors and works, then the cooling liquid enters the heat exchange control module through a cooling liquid absorption pipe and a heat exchange control valve, and the cooling liquid is subjected to heat exchange operation, so that the cooling liquid is recycled. In the process, electronic equipment (comprising one or more of temperature sensing electronic equipment, pressure sensing electronic equipment, fluxgate electronic equipment, seismometers and the like) in a thermal manager in a deep system carries out long-term monitoring work, monitoring data are transmitted to the ground system to be displayed in a display module, and therefore relevant personnel are provided for researching and analyzing information of various physical fields and the like in the deep; in the address deep monitoring module, when the temperature electronic equipment installed in an electronic equipment installation area (74) monitors that the internal temperature of the thermal manager is too high, an abnormality processing system is started, abnormality alarm abnormality analysis is carried out, and finally, the abnormality is fed back to a ground system, the ground system adjusts the processing of the abnormality alarm by the control module and the execution module, and the result is returned to the abnormality processing system so as to eliminate the abnormality.
Comparative example:
Conventional deep monitoring devices are classified into cable logging and logging while drilling, and as proposed in document Pennewitz,E.,Schilling,M.,Kruspe,T.,Jung,S.,&Ruehs,A.(2012).Active cooling of downhole instrumentation for drilling in deep geothermal reservoirs.2012IEEE International Instrumentation and Measurement Technology Conference Proceedings.doi:10.1109/i2mtc.2012.6229454, a downhole active adsorption cooling technology is used for logging while drilling. The method described in this document increases the downhole operating time of the logging electronics to 12 hours.
Example 1: in order to verify the effectiveness of the invention, principle verification is carried out, the simulated deep (underground) high temperature is 110 ℃ (corresponding to 3000 m underground), the cooling liquid is the most common cold water, the processed 7-heat manager is made of alloy materials, a K-type temperature sensor and a 10W heat source (used for replacing the working heat generation of electronic instruments) are arranged in an instrument mounting area and used for measuring the temperature of the instrument mounting area, the experiment is carried out continuously for 120 hours under the condition that the external temperature of the heat manager is 110 ℃, and the temperature of the instrument mounting area is observed, so that the temperature control capability of the manager is illustrated, and the detail is shown in figures 7-9 of the specification.
The specific verification experiment steps are as follows: three temperature gradient experiments were designed, namely 110 ℃, 130 ℃ and 150 ℃ (corresponding to depths of 3000 m, 3500 m.4200 m respectively), 18 ℃ water was used as the cooling liquid, and experiments were carried out on the thermal manager 7 in the present document, in this example, a heating silica gel was used to simulate the downhole high temperature environment, and the heating silica gel was set to 110 ℃, 130 ℃ and 150 ℃ respectively. And the temperature precision is +/-3 ℃, the temperature sensor is used for monitoring the internal temperature of the heat manager, the water quantity controller controls the flow of cold water entering the heat manager, and the experiment time of each temperature gradient is 120 hours. The heat manager 7 is made of alloy material, the instrument installation area is provided with a K-type temperature sensor and a 10W heat source (used for replacing the working heat generation of electronic instruments) and is used for measuring the temperature of the instrument installation area, and the temperature of the instrument installation area is observed by continuously testing for 120 hours under the conditions that the external temperature of the heat manager is 110 ℃, 130 ℃ and 150 ℃, so that the temperature control capability of the manager is illustrated.
As shown in fig. 7, the test state of the thermal manager 7 is shown at an ambient temperature of 110 degrees, the test time is 120 hours without interruption, the external temperature of the thermal manager is always maintained at 110±3 ℃, but the temperature of the electronic installation area of the thermal manager may be always maintained below 30 ℃. The invention is proved to be capable of being used for long-term observation of the electronic instrument with the depth of 3000 meters.
As shown in fig. 8, the test state of the thermal manager 7 is shown at 130 degrees ambient temperature, the experiment time is 120 hours without interruption, the external temperature of the thermal manager is always maintained at 130±3 ℃, however, the temperature of the electronic installation area of the thermal manager can be always maintained below 30 ℃. The invention is proved to be capable of being used for long-term observation of electronic instruments with the depth of 3500 meters.
As shown in fig. 9, the test state of the thermal manager 7 is shown at 150 degrees of ambient temperature, the experiment time is 120 hours without interruption, the external temperature of the thermal manager is always maintained at 150±3 ℃, but the temperature of the electronic installation area of the thermal manager can be always maintained below 30 ℃. The invention is proved to be capable of being used for long-term observation of electronic instruments with the depth of 4200 meters.
In summary, the device and the system thereof can protect the electronic instrument from being observed continuously at high temperature in deep places for a long time.
It will be understood that the application has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the application. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the application without departing from the essential scope thereof. Therefore, it is intended that the application not be limited to the particular embodiment disclosed, but that the application will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. The heat management system of the deep-ground long-term continuity monitoring electronic equipment comprises a ground system, a deep-ground system and an abnormality processing system, wherein the ground system, the deep-ground system and the abnormality processing system are all supplied with power transmission by a power supply system;
The deep ground system comprises a cooling liquid conveying pipe (2), a cooling liquid absorbing pipe (3) and a heat manager (7); the heat manager (7) is respectively communicated with the cooling liquid power output control module (1) and the cooling liquid heat exchange control module (5) through the cooling liquid conveying pipe (2) and the cooling liquid absorbing pipe (3), and the cooling liquid power output control module (1) is communicated with the cooling liquid heat exchange control module (5);
The device also comprises a support pipe (8), wherein the support pipe (8) is mechanically connected with the thermal manager (7), and the thermal manager and the support pipe are embedded into the geological layer;
The thermal manager (7) comprises an electronic equipment installation area (74), wherein a plurality of substrates (70) are arranged in the electronic equipment installation area (74) in parallel, and electronic equipment (76) is placed on the substrates (70); a cooling liquid turbulence channel (75) is sleeved on the periphery of the electronic equipment installation area (74), the upper end of the cooling liquid turbulence channel (75) is communicated with the cooling liquid input channel (71), the lower end of the cooling liquid turbulence channel is communicated with the cooling liquid output channel (77), and the cooling liquid input channel (71) and the cooling liquid output channel (77) are respectively communicated with the cooling liquid conveying pipe (2) and the cooling liquid absorbing pipe (3);
a vacuum cavity (73) is arranged on the periphery of the cooling liquid turbulence channel (75); a thermal manager shell (78) is arranged outside the vacuum cavity (73).
2. The thermal management system of deep long-term continuity monitoring electronic equipment according to claim 1, wherein a wedge groove (81) is formed outside the support tube (8), the coolant delivery tube (2) and the coolant absorption tube (3) are wedged inside the support tube (8), and a fixing ring (82) is installed outside the support tube (8).
3. The deep long-term continuity monitoring electronic device thermal management system of claim 1, characterized in that the coolant delivery pipe (2) comprises a coolant delivery pipe outer wall (21) and a coolant delivery pipe inner wall (23); the outer wall (21) and the inner wall (23) of the cooling liquid conveying pipe are coated with a heat-insulating coating with low heat conductivity, and a heat-insulating material (22) with low heat conductivity is filled between the outer wall (21) and the inner wall (23) of the cooling liquid conveying pipe.
4. The thermal management system of deep long term continuity monitoring electronics of claim 1, wherein the surface system comprises a control module, an execution module, and a thermal manager electronics sensory data surface display module; the thermal manager electronic equipment sensing data ground display module is used for displaying real-time data detected by electronic equipment arranged in the underground thermal manager (7); the control module comprises a heat exchange control module and a cooling liquid power output control module, and the heat exchange control module is used for carrying out heat exchange and cooling on cooling liquid circulated from underground; the cooling liquid power output control module is used for controlling the flow rate and the flow velocity of the cooling liquid; the execution module comprises a heat exchange control valve and a power control valve, the heat exchange control valve is used for controlling the speed and the flow of the cooling liquid absorbed by the cooling liquid absorbing pipe to the ground, and the power control valve is used for controlling the flow and the speed of the cooling liquid entering the cooling liquid conveying pipe.
5. The thermal management system of deep and long-term continuity monitoring electronic equipment according to claim 1, wherein the deep and long-term continuity monitoring electronic equipment comprises a deep and long-term continuity monitoring module and a cooling liquid transportation module, the deep and long-term continuity monitoring module comprises a thermal manager (7), normal monitoring operation of the electronic equipment and temperature monitoring of an electronic equipment installation area inside the thermal manager, the thermal manager (7) enables the electronic equipment to normally monitor operation, and the electronic equipment comprises temperature monitoring electronic equipment for the installation area; the cooling liquid conveying module comprises a cooling liquid conveying pipe and a cooling liquid absorbing pipe, the cooling liquid conveying module conveys cooling liquid to the inside of the heat manager, and the cooling liquid absorbing pipe conveys the cooling liquid which has absorbed heat to a ground system and exchanges heat in the heat exchange control module.
6. The thermal management system of deep and long term continuity monitoring electronic device of claim 1, wherein the power supply system comprises a scientific logging system power system module, a conventional power supply module, an emergency power supply module and a power supply adaptation module, the ground system, the deep and long term continuity monitoring electronic device and the abnormality processing system directly obtain electric energy from the conventional power supply module, the emergency power supply module is charged by the scientific logging system power system module as well, and the conventional power supply module and the emergency power supply module are connected with the power supply adaptation module to output various required voltages.
7. The thermal management system of deep long term continuity monitoring electronic devices of claim 1, wherein the anomaly handling system comprises a temperature anomaly, an anomaly alarm, an anomaly analysis, an anomaly feedback ground system, and anomaly elimination; when the temperature monitoring of an electronic equipment installation area in the heat manager finds that the temperature is abnormal, the deep monitoring module transmits an abnormal signal to a temperature abnormality module in an abnormality processing system, then an abnormality alarm abnormality analysis is carried out to feed back the abnormality to a ground system, and the ground system regulates and controls the cooling liquid circulation refrigerating speed of a heat exchange control module and a cooling liquid power output control module in the control module according to an analysis result, so that the temperature monitoring abnormality in the deep monitoring module in the deep system is eliminated.
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| CN103238019A (en) * | 2010-06-15 | 2013-08-07 | 生物膜Ip有限责任公司 | Methods, devices systems for extraction of thermal energy from a heat conducting metal conduit |
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| CN106605118A (en) * | 2014-08-25 | 2017-04-26 | 西尔万资源公司 | Heat capture, transfer and release for industrial applications |
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