CN117782660A - Controllable contactless radiator temperature measurement experiment system - Google Patents
Controllable contactless radiator temperature measurement experiment system Download PDFInfo
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- CN117782660A CN117782660A CN202311805716.4A CN202311805716A CN117782660A CN 117782660 A CN117782660 A CN 117782660A CN 202311805716 A CN202311805716 A CN 202311805716A CN 117782660 A CN117782660 A CN 117782660A
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- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 12
- 238000002474 experimental method Methods 0.000 title claims description 26
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims description 6
- 238000004861 thermometry Methods 0.000 claims 8
- 238000012360 testing method Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 18
- 238000012546 transfer Methods 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 239000002103 nanocoating Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Abstract
The utility model provides a controllable contactless radiator temperature measurement experimental system, includes the vacuum pot body and passageway subassembly, the passageway subassembly wears to locate the vacuum pot body is provided with the detection channel in order to supply to let in gas or liquid, be equipped with the mounting groove in the detection channel in order to fix and wait to detect the radiator, its characterized in that: the vacuum pan body is provided with a transparent cover body, one side of the detection channel opposite to the transparent cover body is provided with a sealing cover, and the sealing cover is opposite to the radiator to be detected and is transparent; the temperature control device is arranged on the periphery of the mounting groove of the detection channel to provide required substrate temperature according to experimental requirements, and the infrared temperature measuring device faces the transparent cover body to monitor the temperature of each part in the basin of the radiator to be detected. The invention can realize the experimental test of a wide temperature range.
Description
Technical Field
The invention relates to the field of heat dissipation experimental equipment, in particular to a controllable non-contact radiator temperature measurement experimental system.
Background
Heat transfer enhancement is a topic of great concern in the research field, and aims to improve the heat transfer performance of a radiator, and effectively solve the problem of insufficient heat dissipation of equipment in a high-temperature environment. The background technology of the patent focuses on the research of heat transfer enhancement characteristics of a radiator, and aims to design an advanced device so as to realize heat transfer enhancement under various conditions and improve the overall performance of the radiator.
The heat radiator is used as heat exchange equipment, and the heat transfer effect directly influences the working efficiency and service life of the equipment. Under high temperature environment, the conventional radiator may face problems of insufficient heat transfer, excessive temperature, etc., thereby reducing stability and reliability of the device. Therefore, research on heat transfer enhancement technology is a key step in improving the performance of heat sinks.
Past studies have shown that by introducing special structures or coatings on the surface of the heat sink, the heat transfer characteristics can be altered, improving the heat transfer efficiency. This may include micro-structuring, nano-coating or other surface modification methods. However, the existing experimental device for the deep low-temperature and trans-scale radiator comprises a vacuum cover, an air inlet assembly, a temperature adjusting assembly and the like, adopts a thermocouple (thermal resistor) point-to-point temperature measuring mode, adopts a common heating rod and liquid nitrogen common temperature control method for temperature adjustment, requires complicated operation of adjusting and calculating the power of the heating rod, is not recyclable, and has huge cost for research requiring repeated experiments.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a controllable non-contact radiator temperature measurement experiment system, which is used for constructing a wide-temperature-zone trans-scale experiment table and realizing experiments on radiator flow fields under different conditions (gas, liquid, temperature, pressure and speed).
The invention adopts the following technical scheme:
the utility model provides a controllable contactless radiator temperature measurement experimental system, includes the vacuum pot body and passageway subassembly, the passageway subassembly wears to locate the vacuum pot body is provided with the detection channel in order to supply to let in gas or liquid, be equipped with the mounting groove in the detection channel in order to fix and wait to detect the radiator, its characterized in that: the vacuum pan body is provided with a transparent cover body, one side of the detection channel opposite to the transparent cover body is provided with a sealing cover, and the sealing cover is opposite to the radiator to be detected and is transparent; the temperature control device is arranged on the periphery of the mounting groove of the detection channel to provide required substrate temperature according to experimental requirements, and the infrared temperature measuring device faces the transparent cover body to monitor the temperature of each part in the basin of the radiator to be detected.
The channel component comprises a pipe body, two ends of the pipe body are respectively and fixedly penetrated through the vacuum pan body, and the pipe body is internally provided with the detection channel which is axially penetrated; the sealing cover is detachably, hermetically and fixedly connected with the pipe body.
The pipe body comprises two first sections and a second section which are integrally formed, the sections of the two first sections are round, the peripheries of the two first sections are in sealing fit with the vacuum pan body, and the sections of the second section are square and are located between the two first sections.
The temperature control device provides a substrate temperature in the range of-196 ℃ to 1000 ℃.
The vacuum pan body is provided with two first installing ports in the periphery, the both ends of passageway subassembly are fixed respectively wears to locate two first installing ports, first installing port with still be provided with at least one sealing washer between the passageway subassembly corresponding end and realize sealedly.
The vacuum pump is also included; the outer periphery of the vacuum pan body is provided with a second mounting port, and the vacuum pump is connected with the second mounting port.
The vacuum pan body periphery is provided with the third installation mouth, temperature control device's connecting wire passes the third installation mouth.
The vacuum pot body is a round barrel body.
The inner diameter of the detection channel is 1um-1000um.
As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:
1. the system can construct a wide-temperature-zone multi-scale experiment table with the substrate temperature ranging from-196 ℃ to 1000 ℃, realizes experimental tests in the wide-temperature-zone range, and has remarkable innovation and practicability in the research field of heat transfer enhancement characteristics of the radiator.
2. In the system, the transparent cover body and the sealing cover are both made of glass, so that the temperature of the experimental point on the surface of the radiator basin and the temperature change of fluid can be measured in a non-contact manner by a non-contact temperature measurement method, and the response time is quick; by adopting the integrated pipe body assembly and the integrated temperature control device, the complexity of the device is reduced, and the gaps among the connecting parts are reduced, so that the air tightness of the vacuum environment is improved, the number of parts and assembly steps are reduced, the production cost can be reduced, and the cost of inventory and management of the parts is reduced.
3. In the system, the temperature control device can flexibly, rapidly and accurately control the substrate temperature required by an experiment according to the control requirement designed by an experimenter, and accurate substrate temperature control ensures the consistency of experimental conditions, so that the repeatability of the experiment is improved, and compared with a common heating rod temperature control method, the complicated operation of adjusting and calculating the power of a heating rod is omitted.
Drawings
FIG. 1 is a schematic cross-sectional view of the main structure of the present invention;
fig. 2 is an overall assembly profile of the present invention.
FIG. 3 is a perspective exploded view of the structure of the present invention;
FIG. 4 is a front view of FIG. 3;
FIG. 5 is a schematic view of the structure of the channel assembly of the present invention;
FIG. 6 is a schematic diagram of a heat sink to be tested according to the present invention;
FIG. 7 is a schematic diagram of a temperature control device according to the present invention;
FIG. 8 is a schematic diagram of the main structure of the vacuum pan of the present invention;
FIG. 9 is a schematic diagram of an infrared temperature measurement device;
wherein:
11. a channel assembly; 11a, a pipe body 11b, a first section 11c, a second section 11d, a detection channel 12 and a radiator to be tested; 13. a seal ring; 14. sealing cover; 15. a nut; 16. a bolt; 17. an opening; 18. a mounting groove; 19. bolt holes; 20. a seal ring groove; 21. a temperature control device; 31. a vacuum pot body; 32. a first mounting port; 33. a third mounting port; 35. a transparent cover; 38. a second mounting port; 40. an infrared temperature measuring device.
The invention is further described in detail below with reference to the drawings and the specific examples.
Detailed Description
The invention is further described below by means of specific embodiments.
In the present invention, the terms "first," "second," "third," and the like are used merely to distinguish between similar objects and not necessarily to describe a particular sequence or order, nor are they to be construed as indicating or implying a relative importance. In the description, the directions or positional relationships indicated by "upper", "lower", "left", "right", "front" and "rear", etc. are used for convenience of description of the present invention based on the directions or positional relationships shown in the drawings, and are not intended to indicate or imply that the apparatus must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of protection of the present invention. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In addition, in the description of the present application, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
Referring to fig. 1 to 9, a controllable non-contact radiator temperature measurement experiment system comprises a vacuum pan body 31, a channel assembly 11, a temperature control device 21, an infrared temperature measurement device 40 and the like. The vacuum pan body 31 is provided with a transparent cover body 35, the transparent cover body 35 is detachably and fixedly connected with the vacuum pan body 31, the vacuum pan body 31 is provided with a bolt hole 19 and a sealing ring groove 20, and the vacuum pan body 31 can be locked by bolts 16. The channel component 11 is arranged in the vacuum pan body 31 in a penetrating way and is provided with a detection channel 11d for introducing gas or liquid, so that the gas (liquid) bodies with different temperatures required by the experiment can be introduced into the detection channel 11 d. The detection channel 11d is provided with a mounting groove 18 for fixing the heat sink 12 to be detected, the heat sink 12 to be detected is in heat conduction connection with the channel assembly 11, and the length direction of the heat sink 12 to be detected is consistent with the flowing direction of gas or liquid in the detection channel 11 d. The detection channel 11d is provided with a sealing cover 14 on the opposite side to the transparent cover 35, and the sealing cover 14 is opposite to the heat sink 12 to be tested and is provided transparent. The temperature control device 21 is installed on the periphery of the installation groove 18 of the detection channel 11d to provide a required substrate temperature according to experimental requirements, and the infrared temperature measurement device 40 faces the transparent cover 35 to monitor the temperature of the heat sink 12 to be tested in the flow field. The infrared temperature measuring device 40 can be externally connected with a monitoring terminal, and records and transmits data to the monitoring terminal for analysis.
The channel assembly 11 includes a tube body 11a, two ends of the tube body 11a are respectively and fixedly arranged on the vacuum pan body 31 in a penetrating manner, a detection channel 11d is axially arranged in the tube body 11a, and gas or liquid can be introduced into one end of the detection channel 11d and flow out from the other end. The inner diameter of the detection channel 11d is 1um-1000um. The side of the tube 11a facing the transparent cover 35 is provided with an opening 17, and the opening 17 is adapted to the shape of the sealing cover 14, and may be square, but is not limited thereto. The pipe body 11a is provided with a sealing cover 14 which is detachably, hermetically and fixedly connected with the opening 17, the periphery of the opening 17 of the pipe body 11a is provided with a bolt hole 19 and a sealing ring groove 20, and the sealing cover 14 and the pipe body 11a are locked by adopting a bolt 16 and a nut 15. The hollow pot body is provided with the transparent cover body 35, and the sealing cover 14 on the pipe body 11a is also transparent, so that the infrared temperature measuring device can realize real-time and accurate monitoring of the temperature of each part in the flow field of the radiator 12 to be measured.
Specifically, the tube 11a includes two integrally formed first sections 11b and a second section 11c, the sections of the two first sections 11b are circular, and the outer periphery of the two first sections 11b is in sealing fit with the vacuum pan 31, i.e. the first sections 11b at two ends of the tube 11a are circular tubes. The second section 11c is located between the two first sections 11b, and has a square cross section, and the middle part of the pipe body 11a is in a flat square tubular shape. The transparent cover 35 may be disposed at a middle position of the second section 11 c. The integrated pipe body 11a is matched with the flowmeter with the temperature and pressure compensation function, so that the number of parts is reduced, the complexity of manufacturing and assembling is reduced, the economical practicability is further ensured, and the sealing performance is improved.
Further, two first mounting openings 32 are formed in the periphery of the vacuum pan body 31, the first mounting openings 32 are communicated to the inside of the vacuum pan body 31, two ends of the channel assembly 11 are respectively and fixedly arranged on the two first mounting openings 32 in a penetrating manner, namely, two first sections 11b are respectively arranged on the two first mounting openings 32 in a penetrating manner. At least one sealing ring 13 is further arranged between the first mounting opening 32 and the corresponding end of the channel assembly 11 to realize sealing, namely, the interior of the vacuum pan body 31 is isolated from the atmosphere. A sealing ring 13 is sleeved on one side of the transparent cover body 35 opposite to the vacuum pan body 31 so as to realize sealing fit at the joint of the transparent cover body and the vacuum pan body. The first mounting hole 32 is provided as a boss hole.
The vacuum pan body 31 of the invention is vacuumized by an external vacuum pump. The outer periphery of the vacuum pan body 31 is provided with a second mounting opening 38, the vacuum pump is connected with the second mounting opening 38, the inner wall of the second mounting opening 38 is provided with a sealing ring groove 20, and the second mounting opening 38 can adopt a vacuum clamp hole. The vacuum state in the vacuum pan body 31 is maintained by extracting the gas in the vacuum pan body 31. The vacuum environment provided by the vacuum pan body 31 is beneficial to reducing heat conduction, reducing gas convection, preventing gas condensation at low temperature, reducing thermal expansion of gas, improving vacuum insulation effect, improving experimental conditions, enabling experiments to be more accurate and repeatable, especially experiments of micro-channel (1 um-1000 um) radiators, and high-precision experimental data are very important for understanding heat transfer mechanisms of the micro-channel radiators, improving design and promoting development of new technologies and materials.
In addition, the outer periphery of the vacuum pan body 31 is provided with a third mounting port 33, a connecting wire of the temperature control device 21 passes through the third mounting port 33 and is connected to an external monitoring terminal, and the third mounting port 33 can adopt a vacuum clamp hole or a vacuum aviation plug. The temperature control device 21 provides a substrate temperature in the range of-196 c to 1000 c. The temperature control device 21 in the invention is a temperature control device integrating refrigeration and heating, and is provided with a heating module, a refrigerating module, a temperature sensor and a control module, when the temperature needs to be increased, the heating module is started to convert electric energy into heat energy, and the heat energy is transferred to a medium through heat conduction and heat convection to increase the temperature; when the temperature needs to be reduced, the refrigeration module is started to evaporate the liquid refrigerant into a gaseous state, and absorb the heat of the medium to reduce the temperature of the medium. The refrigerant is condensed into liquid state through the condenser, and returns to the medium through the circulating pipeline, thus completing the refrigeration cycle. The control module adopts a PID temperature control algorithm to monitor the medium temperature in real time and automatically adjust the heating and refrigerating operation, ensures the accuracy and stability of the temperature, has the characteristics of wide temperature control range, accurate temperature control and the like, and is widely applied to high and low temperature reliability tests.
The temperature control device 21 of the invention automatically controls according to preset conditions of experimenters, and the requirement of data required by analysis software of the monitoring terminal is met through accurate control variables, so that the analysis software can immediately identify the heat transfer enhancement effect and analyze the influence factors thereof. The heat transfer performance of the radiator can be optimized by timely adjusting the user according to actual working conditions, and the equipment can be ensured to run efficiently and stably under various working conditions.
In the invention, the vacuum pan body 31 adopts a round barrel body, compared with a cuboid shape, the structure is more stable, the stress is even when the vacuum pan body is vacuumized, and concentrated stress points are not easy to occur, so that the risk of deformation or fracture is reduced, and the connection part is effectively sealed by the design of the vacuum clamp hole. Referring to fig. 6, the heat sink to be measured 12 is provided with a plurality of fins, and when the heat sink to be measured 12 is mounted to the mounting groove 18, the length direction of the fins is set to coincide with the flow direction of the detection passage 11 d.
In the vacuum pot body, the vacuum clamp and the boss holes are designed to enable the vacuum pot body to be connected with the external atmosphere at a low leakage rate, the vacuum clamp ensures reliable sealing of the connecting part, prevents gas leakage, keeps the stability of a high vacuum or ultra-high vacuum environment, and eliminates the interference of gas molecules in the vacuum pot on experimental results. Especially in the temperature region of-196 c, most of the gas has liquefied, where vacuum is particularly important for studies requiring accurate measurements and accurate experimental temperature results.
When the system of the invention works, firstly, after all components are assembled, vacuumizing is carried out, when the pressure in the vacuum pot body 31 is close to zero, the temperature control device 21 is adjusted to the set temperature of the substrate of the radiator 12 to be tested, secondly, the pipe body 11a is filled with gas (liquid) bodies with different temperatures set by experiments, when the gas (liquid) bodies flow through the installation position of the radiator 12 to be tested, the gas (liquid) bodies flow through the length direction of the channel of the radiator 12 to be tested, and then the temperature of all positions in the flow field of the radiator 12 to be tested is monitored in real time through the glass upper cover by utilizing the infrared temperature measuring device, and data are recorded and transmitted to the monitoring terminal.
According to the system, experiments on radiator flow fields under different conditions (gas, liquid, temperature, pressure and speed) can be realized by using different kinds of gases (liquid) and controlling the temperature control platform. The experimental device is suitable for a wide-temperature-zone multi-scale experiment table with the substrate temperature of the radiator 12 to be tested ranging from-196 ℃ to 1000 ℃, realizes experimental test of the wide-temperature-zone range, and is suitable for radiator sample experiments with different channel widths and channel heights under the same overall size, such as radiator experiments with the channel width ranging from 1 mu m and the channel height of 20 mu m or even conventional sizes.
The foregoing is merely illustrative of specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the design concept shall fall within the scope of the present invention.
Claims (9)
1. The utility model provides a controllable contactless radiator temperature measurement experimental system, includes the vacuum pot body and passageway subassembly, the passageway subassembly wears to locate the vacuum pot body is provided with the detection channel in order to supply to let in gas or liquid, be equipped with the mounting groove in the detection channel in order to fix and wait to detect the radiator, its characterized in that: the vacuum pan body is provided with a transparent cover body, one side of the detection channel opposite to the transparent cover body is provided with a sealing cover, and the sealing cover is opposite to the radiator to be detected and is transparent; the temperature control device is arranged on the periphery of the mounting groove of the detection channel to provide required substrate temperature according to experimental requirements, and the infrared temperature measuring device faces the transparent cover body to monitor the temperature of each part in the basin of the radiator to be detected.
2. A controllable, non-contact, heat sink thermometry experiment system as set forth in claim 1, wherein: the channel component comprises a pipe body, two ends of the pipe body are respectively and fixedly penetrated through the vacuum pan body, and the pipe body is internally provided with the detection channel which is axially penetrated; the sealing cover is detachably, hermetically and fixedly connected with the pipe body.
3. A controllable, non-contact, heat sink thermometry experiment system as set forth in claim 2, wherein: the pipe body comprises two first sections and a second section which are integrally formed, the sections of the two first sections are round, the peripheries of the two first sections are in sealing fit with the vacuum pan body, and the sections of the second section are square and are located between the two first sections.
4. A controllable, non-contact, heat sink thermometry experiment system as set forth in claim 1, wherein: the temperature control device provides a substrate temperature in the range of-196 ℃ to 1000 ℃.
5. A controllable, non-contact, heat sink thermometry experiment system as set forth in claim 1, wherein: the vacuum pan body is provided with two first installing ports in the periphery, the both ends of passageway subassembly are fixed respectively wears to locate two first installing ports, first installing port with still be provided with at least one sealing washer between the passageway subassembly corresponding end and realize sealedly.
6. A controllable, non-contact, heat sink thermometry experiment system as set forth in claim 1, wherein: the vacuum pump is also included; the outer periphery of the vacuum pan body is provided with a second mounting port, and the vacuum pump is connected with the second mounting port.
7. A controllable, non-contact, heat sink thermometry experiment system as set forth in claim 1, wherein: the vacuum pan body periphery is provided with the third installation mouth, temperature control device's connecting wire passes the third installation mouth.
8. A controllable, non-contact, heat sink thermometry experiment system as set forth in claim 1, wherein: the vacuum pot body is a round barrel body.
9. A controllable, non-contact, heat sink thermometry experiment system as set forth in claim 1, wherein: the inner diameter of the detection channel is 1um-1000um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311805716.4A CN117782660A (en) | 2023-12-26 | 2023-12-26 | Controllable contactless radiator temperature measurement experiment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311805716.4A CN117782660A (en) | 2023-12-26 | 2023-12-26 | Controllable contactless radiator temperature measurement experiment system |
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| Publication Number | Publication Date |
|---|---|
| CN117782660A true CN117782660A (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311805716.4A Pending CN117782660A (en) | 2023-12-26 | 2023-12-26 | Controllable contactless radiator temperature measurement experiment system |
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| Country | Link |
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| CN (1) | CN117782660A (en) |
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- 2023-12-26 CN CN202311805716.4A patent/CN117782660A/en active Pending
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