CN117168201A - Loop heat pipe - Google Patents
Loop heat pipe Download PDFInfo
- Publication number
- CN117168201A CN117168201A CN202311294058.7A CN202311294058A CN117168201A CN 117168201 A CN117168201 A CN 117168201A CN 202311294058 A CN202311294058 A CN 202311294058A CN 117168201 A CN117168201 A CN 117168201A
- Authority
- CN
- China
- Prior art keywords
- heat
- heat exchanger
- condenser
- heat pipe
- evaporator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000010248 power generation Methods 0.000 description 11
- 230000017525 heat dissipation Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- 229920000144 PEDOT:PSS Polymers 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/01—Manufacture or treatment
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
- H10N10/17—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/80—Constructional details
- H10N10/85—Thermoelectric active materials
- H10N10/856—Thermoelectric active materials comprising organic compositions
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a loop heat pipe, which comprises three heat exchangers arranged in parallel, wherein one condenser and two evaporators are arranged in the three heat exchangers, and condenser valves and evaporator valves are respectively arranged on a condenser pipeline and an evaporator pipeline. The invention provides a novel loop heat pipe, which can be arbitrarily selected to be provided with an evaporator and a condenser, thereby improving the flexibility of the heat exchange heat pipe.
Description
Technical Field
The invention relates to a heat pipe technology, in particular to a loop heat pipe for exchanging an evaporator and a condenser, belonging to the field of heat pipes of F28d 15/02.
Background
The heat pipe technology is a heat transfer element called a "heat pipe" invented by George Grover (Los Alamos) national laboratory in the United states of Amersham (1963), which fully utilizes the heat conduction principle and the rapid heat transfer property of a phase change medium, and rapidly transfers the heat of a heating object to the outside of a heat source through the heat pipe, and the heat conduction capability of the heat pipe exceeds that of any known metal.
The heat pipe technology is widely applied to the industries of aerospace, military industry and the like before, since the heat pipe technology is introduced into the radiator manufacturing industry, the design thought of the traditional radiator is changed, a single radiating mode of obtaining a better radiating effect by simply relying on a high-air-volume motor is eliminated, the heat pipe technology is adopted to enable the radiator to obtain a satisfactory heat exchanging effect, and a new world of the radiating industry is opened up. At present, the heat pipe is widely applied to various heat exchange equipment, including the nuclear power field and the computer field, such as the waste heat utilization of nuclear power, and the like.
The loop heat pipe refers to a loop closed loop heat pipe. Typically consisting of an evaporator, a condenser, a liquid reservoir, and vapor and liquid lines. The working principle is as follows: the heat load is applied to the evaporator, the working medium evaporates on the outer surface of the evaporator capillary core, the generated vapor flows out from the vapor channel and enters the vapor pipeline, then enters the condenser to be condensed into liquid and supercooled, the reflux liquid enters the liquid trunk through the liquid pipeline to supply the evaporator capillary core, and the circulation is carried out in this way, and the circulation of the working medium is driven by the capillary pressure generated by the evaporator capillary core without external power. Because the condensing section and the evaporating section are separated, the loop heat pipe is widely applied to comprehensive application of energy and recovery of waste heat.
The existing loop heat pipe, the evaporator and the condenser are arranged in advance and cannot be changed, and once the loop heat pipe is arranged, the positions of a heat source and a cold source are fixed. Once the heat source and the cold source are changed, the heat source and the cold source are reset.
Aiming at the defects, the invention improves the current loop heat pipe, can meet different heat exchange requirements of heat dissipation at a plurality of positions, and ensures that the system has simple structure and saves cost.
Disclosure of Invention
The invention provides a novel loop heat pipe for exchanging an evaporator condenser, which solves the technical problem that the evaporating end and the condensing end of the loop heat pipe are fixed and can not realize mutual conversion and heat dissipation.
In order to achieve the above object, the technical scheme of the present invention is as follows:
the loop heat pipe comprises three heat exchangers which are arranged in parallel, wherein one condenser and two evaporators are arranged in the three heat exchangers, and a condenser valve and an evaporator valve are respectively arranged on a condenser pipeline and an evaporator pipeline.
The utility model provides a loop heat pipe that evaporator condenser exchanged, including at least three heat exchangers, be first heat exchanger respectively, second heat exchanger and third heat exchanger, first heat exchanger sets up on first heat exchanger pipeline, the second heat exchanger sets up on the second heat exchanger pipeline, the third heat exchanger sets up on the third heat exchanger pipeline, set up first valve respectively on first heat exchanger pipeline, second heat exchanger pipeline and the third heat exchanger pipeline, first heat exchanger pipeline, second heat exchanger pipeline and third heat exchanger pipeline are parallelly connected the setting, first heat exchanger, second heat exchanger and third heat exchanger can all be as evaporimeter or condenser, wherein at least one in first heat exchanger, second heat exchanger and the third heat exchanger is the evaporimeter, at least one is the condenser.
Preferably, a heat source capable of controlling whether heating is performed is provided in the first heat exchanger, the second heat exchanger, and the third heat exchanger.
Preferably, the heat source is an electrical heating element.
Preferably, the first heat exchanger, the second heat exchanger and the third heat exchanger are provided with a cold source channel, and the control part is provided to control whether the cold source flows through the cold source channel.
Preferably, the control means is a valve.
Preferably, the cold source is air.
Preferably, at least one of the first heat exchanger, the second heat exchanger and the third heat exchanger is a flat plate structure.
Preferably, one of the first heat exchanger, the second heat exchanger and the third heat exchanger is a tubular structure.
Preferably, the thermoelectric power generation film is disposed outside the tubular structure.
Preferably, the thermoelectric power generation film is PEDOT: PSS flexible thermoelectric film.
Compared with the prior art, the invention has the following advantages:
1) The invention provides a novel loop heat pipe, which can be arbitrarily selected to be provided with an evaporator and a condenser, so that the flexibility of the heat exchange heat pipe is improved, and the technical problems that the evaporating end and the condensing end of the loop heat pipe are fixed and the heat dissipation of mutual conversion cannot be realized are solved;
2) The invention can make the heat exchanger be used as evaporator or condenser according to the need by setting the heat source and the cold source which can be controlled independently.
Drawings
FIG. 1 is a schematic diagram of a loop heat pipe structure of the present invention.
FIG. 2 is a schematic illustration of a temperature differential membrane arrangement of the present invention.
Detailed Description
The following describes the embodiments of the present invention in detail with reference to the drawings.
Herein, "/" refers to division, "×", "x" refers to multiplication, unless otherwise specified.
Fig. 1 discloses a loop heat pipe, which comprises three heat exchangers 1-3 arranged in parallel, wherein one condenser and two evaporators are arranged in the three heat exchangers, and condenser valves and evaporator valves are respectively arranged on a condenser pipeline and an evaporator pipeline. The invention provides a novel loop heat pipe, which can be arbitrarily selected to be provided with an evaporator and a condenser, thereby improving the flexibility of the heat exchange heat pipe.
As shown in fig. 1, a loop heat pipe for exchanging an evaporator and condenser comprises at least three heat exchangers, namely a first heat exchanger 1, a second heat exchanger 2 and a third heat exchanger 3, wherein the first heat exchanger 1 is arranged on a first heat exchanger pipeline, the second heat exchanger 2 is arranged on a second heat exchanger pipeline, the third heat exchanger 3 is arranged on a third heat exchanger pipeline, a first valve 4, a second valve 5 and a third valve 6 are respectively arranged on the first heat exchanger pipeline, the second heat exchanger pipeline and the third heat exchanger pipeline, the first heat exchanger pipeline, the second heat exchanger pipeline and the third heat exchanger pipeline are arranged in parallel, and the first heat exchanger, the second heat exchanger and the third heat exchanger can be used as the evaporator or the condenser, wherein at least one of the first heat exchanger, the second heat exchanger and the third heat exchanger is the evaporator, and at least one of the first heat exchanger, the second heat exchanger and the third heat exchanger is the condenser.
The invention provides a novel loop heat pipe for exchanging an evaporator condenser, which solves the technical problem that the evaporating end and the condensing end of the loop heat pipe are fixed and can not realize mutual conversion and heat dissipation. According to the invention, which heat exchanger is used as the evaporator or the condenser can be selected according to the requirement, so that the application range of a heat exchange heat source is increased.
Preferably, a heat source capable of controlling whether heating is performed is provided in the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3. By providing a heat source that can be controlled independently, it is possible to realize whether the heat exchanger is to be an evaporator. The heat source heats when it is needed as an evaporator, and does not heat when it is not needed as an evaporator.
Preferably, the heat source is an electrical heating element.
Preferably, the first heat exchanger 1, the second heat exchanger 2 and the third heat exchanger 3 are provided with a cold source channel, and the control part is provided to control whether the cold source flows through the cold source channel. By arranging the cold source which can be independently controlled, whether the heat exchanger is used as a condenser or not can be realized. When the condenser is needed, the cold source is heated through the heat exchanger, and when the condenser is not needed, the cold source does not pass through the heat exchanger, so that the cold source is not heated.
Preferably, the control means is a valve. And determining whether the cold source passes through the heat exchanger or not through opening and closing of the valve.
Preferably, the valve is arranged on the inlet pipe of the heat exchanger.
Preferably, the cold source is air.
Preferably, at least one of the first heat exchanger, the second heat exchanger and the third heat exchanger is a flat plate structure.
Preferably, one of the first heat exchanger, the second heat exchanger and the third heat exchanger is a tubular structure.
Preferably, the tubular structure is a condenser, and the thermoelectric film is disposed outside the tubular structure.
Preferably, the thermoelectric power generation film is PEDOT: PSS flexible thermoelectric film.
As an improvement, an evaporator and two condensers are arranged, and the technical problems that the heat exchange capacity of a loop heat pipe for multi-point heat dissipation is limited and the multi-point independent heat dissipation cannot be realized can be realized by arranging a plurality of condenser pipelines in parallel. As shown in fig. 1, the first heat exchanger 1 is provided as an evaporator, and the second and third heat exchangers 2, 3 are provided as condensers, i.e., a first condenser and a second condenser.
Preferably, as shown in fig. 1, the evaporator pipeline is arranged in the middle, and the first condenser pipeline and the second condenser pipeline are respectively arranged at two sides of the evaporator. Through such setting, can make the evaporimeter dispel the heat to the condenser of different directions, heat different directions, multi-direction realization heat utilization.
Preferably, first and second valve means are provided on the first and second condenser lines for regulating the flow of fluid into the first and second condensers. Through setting up the governing valve, can solitary realization different condenser pipeline's heat utilization, can realize the independent radiating technical problem of multiple spot.
Preferably, a power device is also included for promoting the fluid circulation. Preferably, the power means may be a micropump. The power plant may be arranged on the inlet line of the evaporator.
Preferably, the first condenser is of a flat plate structure, and a thermoelectric generation film 5 is arranged outside the first condenser. By arranging the thermoelectric power generation film, the power generation function can be realized.
Preferably, the second condenser is provided with a plurality of heat exchange tubes, and a thermoelectric generation film is arranged outside the heat exchange tubes. As shown in fig. 2. Further preferably, an electrical storage device is further included for storing electrical energy in the electrical storage device.
Preferably, the thermoelectric power generation film is PEDOT: PSS flexible thermoelectric film.
Preferably, the thermoelectric generation film has a gradient of power generation capability, and the power generation capability gradually increases along the flow direction of the fluid. As the temperature difference becomes smaller as the fluid continues to flow. Through setting up in order to guarantee that different positions generated energy is unanimous relatively like this, realize holistic electricity generation equilibrium.
Preferably, the power generation capability increases gradually in magnitude along the flow direction of the fluid. The arrangement is also used for further ensuring the relative consistency of the generated energy at different positions and further realizing the overall power generation balance. The amplitude change is also a conclusion obtained through a large number of experiments and simulations, and accords with the distribution of power generation corresponding to the temperature.
While the invention has been described in terms of preferred embodiments, the invention is not so limited. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.
Claims (7)
1. The loop heat pipe comprises three heat exchangers which are arranged in parallel, wherein one condenser and two evaporators are arranged in the three heat exchangers, and a condenser valve and an evaporator valve are respectively arranged on a condenser pipeline and an evaporator pipeline.
2. The loop heat pipe of claim 1 wherein the evaporators each have a heat source for controlling whether heating is performed.
3. The loop heat pipe of claim 1 wherein a cold source channel is provided in the condenser, and a control means is provided to control whether the cold source flows through the cold source channel.
4. The loop heat pipe of claim 3 wherein the flow of cold source into the condenser is automatically controlled based on the detected heat source temperature.
5. The loop heat pipe of claim 4 wherein the cold source is air.
6. The loop heat pipe of claim 4 wherein the monitored temperature increases automatically increasing the cold source flow, and the monitored temperature decreases automatically decreasing the cold source flow.
7. The loop heat pipe of claim 1 wherein the heat exchanger is a flat plate construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311294058.7A CN117168201B (en) | 2022-01-25 | Loop heat pipe |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311294058.7A CN117168201B (en) | 2022-01-25 | Loop heat pipe | |
| CN202210087189.7A CN114413664B (en) | 2022-01-25 | 2022-01-25 | Loop heat pipe for exchanging evaporator and condenser |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210087189.7A Division CN114413664B (en) | 2022-01-25 | 2022-01-25 | Loop heat pipe for exchanging evaporator and condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117168201A true CN117168201A (en) | 2023-12-05 |
| CN117168201B CN117168201B (en) | 2024-05-31 |
Family
ID=
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100223942A1 (en) * | 2009-03-06 | 2010-09-09 | Thales | Thermal Management Device for a Spacecraft |
| CN105374926A (en) * | 2014-08-06 | 2016-03-02 | 中国科学院化学研究所 | Flexible multifunctional sensor, preparation method and application thereof |
| CN108518718A (en) * | 2017-12-29 | 2018-09-11 | 杨吉 | Absorb the device and submersible type latent heat pump of the heating of water latent heat |
| CN208124405U (en) * | 2017-12-29 | 2018-11-20 | 杨吉 | Absorb the device and submersible type latent heat pump of the heating of water latent heat |
| CN113959244A (en) * | 2021-11-02 | 2022-01-21 | 山东大学 | Double-evaporator condenser loop heat pipe |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100223942A1 (en) * | 2009-03-06 | 2010-09-09 | Thales | Thermal Management Device for a Spacecraft |
| CN105374926A (en) * | 2014-08-06 | 2016-03-02 | 中国科学院化学研究所 | Flexible multifunctional sensor, preparation method and application thereof |
| CN108518718A (en) * | 2017-12-29 | 2018-09-11 | 杨吉 | Absorb the device and submersible type latent heat pump of the heating of water latent heat |
| CN208124405U (en) * | 2017-12-29 | 2018-11-20 | 杨吉 | Absorb the device and submersible type latent heat pump of the heating of water latent heat |
| CN113959244A (en) * | 2021-11-02 | 2022-01-21 | 山东大学 | Double-evaporator condenser loop heat pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114413664A (en) | 2022-04-29 |
| CN114413664B (en) | 2023-10-31 |
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