CN114485235A - Loop heat pipe with bypass structure - Google Patents

Loop heat pipe with bypass structure Download PDF

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Publication number
CN114485235A
CN114485235A CN202011149471.0A CN202011149471A CN114485235A CN 114485235 A CN114485235 A CN 114485235A CN 202011149471 A CN202011149471 A CN 202011149471A CN 114485235 A CN114485235 A CN 114485235A
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CN
China
Prior art keywords
evaporator
liquid
pipeline
bypass
condenser
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.)
Pending
Application number
CN202011149471.0A
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Chinese (zh)
Inventor
张海南
丁京
徐洪波
田长青
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Technical Institute of Physics and Chemistry of CAS
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Technical Institute of Physics and Chemistry of CAS
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Application filed by Technical Institute of Physics and Chemistry of CAS filed Critical Technical Institute of Physics and Chemistry of CAS
Priority to CN202011149471.0A priority Critical patent/CN114485235A/en
Publication of CN114485235A publication Critical patent/CN114485235A/en
Pending legal-status Critical Current

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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
    • F28D15/04—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 tubes having a capillary structure
    • F28D15/046—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 tubes having a capillary structure characterised by the material or the construction of the capillary structure
    • 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
    • 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
    • F28D15/04—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 tubes having a capillary structure
    • F28D15/043—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 tubes having a capillary structure forming loops, e.g. capillary pumped loops
    • 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
    • F28D15/06—Control arrangements therefor

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  • 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)
  • Central Heating Systems (AREA)

Abstract

The invention provides a loop heat pipe with a bypass structure, which comprises a condenser, an evaporator and a gas/liquid/bypass pipeline; be provided with the imbibition core in the evaporimeter, be formed with compensation room and air cavity in the evaporimeter, the liquid outlet of compensation room through liquid pipeline intercommunication condenser, air cavity passes through gas pipeline and bypass line and communicates the air inlet and the liquid pipeline of condenser respectively. When the condenser and the evaporator are at the same height, the loop heat pipe with the bypass structure is provided with a bypass pipeline, so that the timely supply of the liquid working medium can be realized, and the supercooled liquid passing through the bypass pipeline can also enter the liquid suction core to inhibit the temperature rise and the pressure rise in the compensation chamber, thereby reducing the possibility of temperature overload of the evaporator; when the condenser is positioned at a certain height above the evaporator, as the flow resistance of the bypass pipeline is small, most of the liquid working medium enters the air cavity through the bypass pipeline to be heated and evaporated, the flow resistance is greatly reduced compared with the existing loop heat pipe, and the loop heat exchange performance is better.

Description

Loop heat pipe with bypass structure
Technical Field
The invention relates to the technical field of heat exchange, in particular to a loop heat pipe with a bypass structure.
Background
Among numerous heat exchange elements, the heat pipe belongs to one of the most effective heat exchange devices, and the heat exchange is carried out by utilizing the gas-liquid phase change of the working medium, so that a large amount of heat can be efficiently transported through a small cross section area under the condition of no external force driving. Among them, the loop heat pipe is favored by researchers at home and abroad due to its excellent ability to transmit heat over a long distance. A typical loop heat pipe is generally composed of an evaporator, a condenser, a compensation chamber, a gas line and a liquid line, with a wick having a porous structure in the evaporator to provide the driving force for the normal operation of the cycle. When heat load is applied to the evaporator, the working medium is evaporated on the outer surface of the liquid absorption core, the generated vapor enters the gas pipeline, the other end of the gas pipeline is connected with the inlet of the condenser, the vapor is condensed into liquid and subcooled by the condenser, and then the liquid returns to the evaporator through the compensation chamber along the liquid pipeline, and the circulation is carried out.
The disadvantages of the prior loop heat pipe are mainly reflected in two aspects of starting and liquid conveying. Heat leaks to the compensation chamber in the starting process, so that the temperature and the pressure of the compensation chamber are increased, the evaporator is easy to generate a temperature overload phenomenon, and the loop is difficult to start under the condition of low heat flow. When the liquid reflux resistance of the loop is too large and the evaporation rate of the working medium is greater than the liquid reflux rate, the liquid working medium is difficult to be timely conveyed to the evaporator from the compensation chamber, so that the evaporator is dried. Meanwhile, the existing heat pipe is mainly applied to one of gravity or capillary force, and does not consider heat transfer maximization under the condition of gravity or not.
Disclosure of Invention
The embodiment of the invention provides a loop heat pipe with a bypass structure, which is used for solving the defects of the existing loop heat pipe in the aspects of starting, liquid conveying, overlarge loop flow resistance and the like.
The embodiment of the invention provides a loop heat pipe with a bypass structure, which comprises a condenser, an evaporator, a liquid pipeline, a gas pipeline and a bypass pipeline;
the evaporator is internally provided with a liquid absorbing core, the liquid absorbing core is internally provided with a compensation chamber and an air chamber at intervals, the compensation chamber is communicated with the liquid outlet of the condenser through the liquid pipeline, and the air chamber is respectively communicated with the air inlet of the condenser and the liquid pipeline through the gas pipeline and the bypass pipeline.
According to the loop heat pipe with the bypass structure, the evaporator comprises a first evaporator, the liquid absorption core is arranged in the first evaporator, so that the compensation chamber and the air cavity are formed in the first evaporator;
the first evaporator is provided with a first liquid inlet, a second liquid inlet and a gas outlet, the first liquid inlet is used for communicating the compensation chamber and the liquid pipeline, the second liquid inlet is used for communicating the gas cavity and the bypass pipeline, and the gas outlet is used for communicating the gas cavity and the gas pipeline.
According to the loop heat pipe with the bypass structure, the air cavity comprises a first air cavity and a second air cavity, and the evaporator comprises a first evaporator, a second evaporator and a communication pipeline;
the liquid suction core is arranged in the first evaporator so as to form the compensation chamber and the first air cavity in the first evaporator, the second air cavity is formed in the second evaporator, and the first air cavity is communicated with the second air cavity through the communication pipeline;
the first evaporator is provided with a first liquid inlet which is used for communicating the compensation chamber and the liquid pipeline;
the second evaporator is provided with a second liquid inlet and a gas outlet, the second liquid inlet is used for communicating the second gas cavity with the bypass pipeline, and the gas outlet is used for communicating the second gas cavity with the gas pipeline.
According to the loop heat pipe with the bypass structure, the second evaporator and the first evaporator are at the same height.
According to the loop heat pipe with the bypass structure, the second liquid inlet is positioned at the bottom of the second evaporator; and/or the presence of a gas in the gas,
the top of the first evaporator is provided with a first communication port which is used for communicating the first air cavity with the communication pipeline, and the top of the second evaporator is provided with a second communication port which is used for communicating the second air cavity with the communication pipeline.
According to the loop heat pipe with the bypass structure, the air cavity is positioned above the compensation chamber.
According to the loop heat pipe with the bypass structure, the condenser is one or a combination of air-cooled condenser, liquid-cooled condenser and evaporative condenser.
According to the loop heat pipe with the bypass structure, the liquid absorption core is a composite structure core of one or more of a sintered powder type liquid absorption core, a metal wire mesh type liquid absorption core, a metal fiber type liquid absorption core and a groove type liquid absorption core.
According to the loop heat pipe with the bypass structure, the condenser is positioned at a preset height above the evaporator; alternatively, the first and second electrodes may be,
the condenser is at the same height as the evaporator.
According to the loop heat pipe with the bypass structure, the bypass pipeline is provided with the one-way valve.
The loop heat pipe with the bypass structure provided by the embodiment of the invention has the advantages of no need of extra energy consumption, small flow resistance and better starting and heat exchange performance compared with the typical loop heat pipe without the bypass structure. When the condenser and the evaporator are at the same height, the bypass pipeline is arranged to realize timely supply of the liquid working medium, and the supercooled liquid passing through the bypass pipeline also enters the liquid absorption core to inhibit temperature rise and pressure rise in the compensation chamber, so that the possibility of temperature overload of the evaporator is reduced; when the condenser is positioned above the evaporator at a certain height, most of the liquid working medium enters the air cavity through the bypass pipeline to be heated and evaporated because the flow resistance of the bypass pipeline is small, the flow resistance of the loop heat pipe with the bypass structure is greatly reduced compared with the existing loop heat pipe, and the loop heat exchange performance is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a loop heat pipe with a bypass structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of the evaporator of FIG. 1;
fig. 3 is a schematic structural diagram of another loop heat pipe with a bypass structure according to an embodiment of the present invention.
Reference numerals:
100: a loop heat pipe with a bypass structure; 1: a condenser; 2: an evaporator; 2 a: a first evaporator; 2 b: a second evaporator; 21: a wick; 22: a compensation chamber; 23: an air cavity; 231: a first air cavity; 232: a second air cavity; 24: a first liquid inlet; 25: a second liquid inlet; 26: a gas outlet; 27: a vacuum pumping port; 28: a bottom case; 29: a cover plate; 3: a liquid line; 4: a gas line; 5: a bypass line; 51: a one-way valve; 6: communicating the pipelines.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a loop heat pipe with a bypass structure, as shown in fig. 1, the loop heat pipe 100 with a bypass structure includes a condenser 1, an evaporator 2, a liquid line 3, a gas line 4, and a bypass line 5.
As shown in fig. 1 and 2, a wick 21 is provided in the evaporator 2, and the wick 21 is formed with a compensation chamber 22 and an air chamber 23 at an interval in the evaporator 2. The wick 21 may be a composite structure wick of one or more of a sintered powder type wick, a wire mesh type wick, a metal fiber type wick, a groove type wick, and the like, and the air chamber 23 is generally located above the compensation chamber 22.
As shown in fig. 1, the compensation chamber 22 communicates with the liquid outlet of the condenser 1 through the liquid line 3, and the air chamber 23 communicates with the air inlet of the condenser 1 and the liquid line 3 through the gas line 4 and the bypass line 5, respectively. Heat is applied to an air cavity 23 of the evaporator 2, generated vapor enters the condenser 1 along the gas line 4 to be condensed and become supercooled liquid, then the vapor is divided into two paths, one path enters the compensation chamber 22 along the liquid line 3 and is then sucked into the liquid suction core 21, the heat is absorbed in the liquid suction core 21 and evaporated into gas and overflows into the air cavity 23, the other path enters the air cavity 23 of the evaporator 2 along the bypass line 5 to be heated and evaporated, and the generated gas-liquid two-phase flow enters the condenser 1 through the gas line 4 to be condensed into liquid and supercooled, and the circulation is carried out. Wherein, the condenser 1 can be one or combination of air-cooled condenser, liquid-cooled condenser, evaporative condenser, etc., and the condenser 1 can be located at a certain height above the evaporator 2; the condenser 1 may also be at the same height as the evaporator 2, i.e. in a horizontal arrangement.
As shown in fig. 1, in the present embodiment, the bypass line 5 is provided with a check valve 51, and vapor generated during the starting process can be prevented from entering the liquid outlet of the condenser 1 through the bypass line 5 by providing the check valve 51, wherein the specific pattern and installation manner of the check valve 51 can be set according to the actual situation, for example, the check valve 51 can be a straight-through check valve, and is installed on the bypass line 5 by screwing or welding.
When the loop heat pipe 100 with the bypass structure is provided with only one evaporator 2, for example, as shown in fig. 1 and 2, the evaporator 2 includes a first evaporator 2a, and a wick 21 is disposed in the first evaporator 2a to form a compensation chamber 22 and an air chamber 23 in the first evaporator 2a, and the evaporator 2 may be provided with one or more evaporators 2; the first evaporator 2a is provided with a first liquid inlet 24, a second liquid inlet 25 and a gas outlet 26, the first liquid inlet 24 is used for communicating the compensation chamber 22 and the liquid pipeline 3, the second liquid inlet 25 is used for communicating the gas cavity 23 and the bypass pipeline 5, and the gas outlet 26 is used for communicating the gas cavity 23 and the gas pipeline 4. As shown in fig. 2, in the present embodiment, the evaporator 2 includes a bottom shell 28 and a cover plate 29, the cover plate 29 covers the bottom shell 28 to form a cavity, the wick 21 is disposed in the cavity, the bottom of the evaporator 2 forms a compensation chamber 22, the compensation chamber 22 is used for storing a liquid working medium, the first liquid inlet 24 is disposed at the bottom of the evaporator 2, the top of the evaporator 2 forms an air cavity 23, the second liquid inlet 25 and the air outlet 26 are disposed at the top of the evaporator 2, and the top of the evaporator 2 is provided with a vacuum pumping port 27 communicated with the air cavity 23.
When the condenser 1 and the first evaporator 2a are arranged at the same height, the capillary force of the liquid absorption core 21 is used as a circulating driving force, when the steam generation rate in the first evaporator 2a is too high, the liquid working medium passing through the loop of the liquid pipeline 3 cannot be timely conveyed into the liquid absorption core 21 due to large flow resistance, and at the moment, the liquid working medium can be timely supplied due to the existence of the bypass pipeline 5. In addition, the supercooled liquid passing through the bypass line 5 also enters the wick 21, suppressing the temperature rise and pressure rise in the compensation chamber 22, and greatly reducing the possibility of temperature overload of the first evaporator 2 a. When the condenser 1 is arranged at a certain height above the first evaporator 2a, as the resistance of the liquid flowing through the liquid absorption core 21 is large, the flow resistance of the bypass pipeline 5 is small, most of the liquid working medium enters the air cavity 23 through the bypass pipeline 5 to be heated and evaporated, and returns to the condenser 1 from the gas pipeline 4, at the moment, the integral flow resistance of the system is greatly reduced when a bypass structure is not arranged (the bypass structure is the bypass pipeline 5), and the loop heat exchange performance is better.
When the loop heat pipe 100 with the bypass structure is provided with only a plurality of evaporators 2, for example, as shown in fig. 3, the air chamber 23 includes a first air chamber 231 and a second air chamber 232, and the evaporators 2 include a first evaporator 2a, a second evaporator 2b and a communication line 6; the wick 21 is disposed in the first evaporator 2a to form a compensation chamber 22 and a first air chamber 231 in the first evaporator 2a, a second air chamber 232 is formed in the second evaporator 2b, and the first air chamber 231 is communicated with the second air chamber 232 through a communication line 6; the first evaporator 2a is provided with a first liquid inlet 24, and the first liquid inlet 24 is used for communicating the compensation chamber 22 and the liquid pipeline 3; the second evaporator 2b is provided with a second liquid inlet 25 and a gas outlet 26, the second liquid inlet 25 is used for communicating the second gas chamber 232 and the bypass pipeline 5, and the gas outlet 26 is used for communicating the second gas chamber 232 and the gas pipeline 4. The main heat is applied to the second air cavity 232 of the second evaporator 2b, a small part of energy is applied to the first air cavity 231 of the first evaporator 2a, vapor at the outlet of the second evaporator 2b enters the condenser 1 along the gas pipeline 4 to be condensed into supercooled liquid, and then is divided into two paths, wherein one path enters the compensation chamber 22 along the liquid pipeline 3 and then is sucked into the liquid absorbing core 21, and the heat absorbed in the liquid absorbing core 21 is evaporated into gas which overflows into the first air cavity 231 of the first evaporator 2a and then enters the second evaporator 2b along the communication pipeline 6; the other path directly enters the second evaporator 2b along a bypass pipeline 5 to be heated and vaporized, and the generated gas-liquid two-phase flow enters the gas pipeline 4 from the top gas outlet and is circulated. Wherein the second evaporator 2b is generally at the same level as the first evaporator 2a, and the second liquid inlet 25 is generally located at the bottom of the second evaporator 2 b.
As shown in fig. 3, in the present embodiment, the top of the first evaporator 2a is provided with a first communication port for communicating the first air chamber 231 with the communication line 6, and the top of the second evaporator 2b is provided with a second communication port for communicating the second air chamber 232 with the communication line 6.
As shown in fig. 3, no matter the condenser 1 and the second evaporator 2b have a height difference (i.e. whether the condenser 1 and the second evaporator 2b are horizontally arranged or not), when the bypass structure is absent, the first evaporator 2a generates steam slowly because it applies less heat, a large amount of working fluid accumulates in the compensation chamber 22 of the first evaporator 2a, and the circuit can normally operate only when the first evaporator 2a is started for a certain time and then the second evaporator 2b is started; when a bypass loop is arranged, the first evaporator 2a and the second evaporator 2b can be started simultaneously, and the liquid working medium can circulate through the bypass pipeline 5, so that the starting time of the heat pipe is greatly shortened, and the stable working state can be reached more quickly. When the condenser 1 is arranged at the same height of the second evaporator 2b, part of the liquid working medium enters the second evaporator 2b through the bypass pipeline 5, so that the phenomenon of dryness of the second evaporator 2b caused by the fact that the quantity of the working medium entering the second evaporator 2b through the communicating pipeline 6 is small due to the fact that the heat applied to the first evaporator 2a is small is avoided, and the transmission of the working medium of the whole system is guaranteed. When the condenser 1 is arranged at a certain height above the second evaporator 2b, the resistance of the loop of the first evaporator 2a is large, most of working medium enters the second evaporator 2b through the bypass pipeline 5 to absorb heat for vaporization, and at the moment, the whole flow resistance of the system is greatly reduced compared with the system without the bypass pipeline 5. In addition, the first evaporator 2a loop can also play a role in regulating the distribution of the working medium in the system.
The loop heat pipe 100 with the bypass structure is additionally provided with the bypass pipeline 5, so that the unreliable problems of slow start, evaporator temperature overload, untimely liquid return and the like which possibly occur in the running process of the loop heat pipe can be solved when the condenser 1 and the evaporator 2 have no height difference; when the condenser 1 and the evaporator 2 have a certain height difference, the flow resistance of the loop can be reduced, the starting time of the loop can be shortened, and the heat transfer capacity in a gravity driving mode can be increased.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A loop heat pipe with a bypass structure is characterized by comprising a condenser, an evaporator, a liquid pipeline, a gas pipeline and a bypass pipeline;
the evaporator is internally provided with a liquid absorbing core, the liquid absorbing core is internally provided with a compensation chamber and an air chamber at intervals, the compensation chamber is communicated with the liquid outlet of the condenser through the liquid pipeline, and the air chamber is respectively communicated with the air inlet of the condenser and the liquid pipeline through the gas pipeline and the bypass pipeline.
2. A loop heat pipe with a bypass structure according to claim 1, wherein the evaporator includes a first evaporator, and the wick is disposed in the first evaporator to form the compensation chamber and the air chamber in the first evaporator;
the first evaporator is provided with a first liquid inlet, a second liquid inlet and a gas outlet, the first liquid inlet is used for communicating the compensation chamber and the liquid pipeline, the second liquid inlet is used for communicating the gas cavity and the bypass pipeline, and the gas outlet is used for communicating the gas cavity and the gas pipeline.
3. The loop heat pipe with the bypass structure according to claim 1, wherein the air chamber comprises a first air chamber and a second air chamber, and the evaporator comprises a first evaporator, a second evaporator and a communication pipeline;
the liquid absorption core is arranged in the first evaporator so as to form the compensation chamber and the first air cavity in the first evaporator, the second air cavity is formed in the second evaporator, and the first air cavity is communicated with the second air cavity through the communication pipeline;
the first evaporator is provided with a first liquid inlet which is used for communicating the compensation chamber and the liquid pipeline;
the second evaporator is provided with a second liquid inlet and a gas outlet, the second liquid inlet is used for communicating the second gas cavity with the bypass pipeline, and the gas outlet is used for communicating the second gas cavity with the gas pipeline.
4. A loop heat pipe with a bypass structure according to claim 3, wherein the second evaporator is at the same height as the first evaporator.
5. A loop heat pipe with a bypass structure according to claim 3, wherein the second liquid inlet is located at the bottom of the second evaporator; and/or the presence of a gas in the gas,
the top of the first evaporator is provided with a first communication port, the first communication port is used for communicating the first air cavity with the communication pipeline, the top of the second evaporator is provided with a second communication port, and the second communication port is used for communicating the second air cavity with the communication pipeline.
6. A loop heat pipe with a bypass structure according to any one of claims 1 to 5, wherein the air chamber is located above the compensation chamber.
7. The loop heat pipe with the bypass structure according to any one of claims 1 to 5, wherein the condenser is one or more of an air-cooled condenser, a liquid-cooled condenser and an evaporative condenser.
8. A loop heat pipe with a bypass structure according to any one of claims 1 to 5, wherein the wick is a composite structure of one or more of a sintered powder wick, a wire mesh wick, a metal fiber wick, and a groove wick.
9. The loop heat pipe with the bypass structure according to any one of claims 1 to 5, wherein the condenser is located at a predetermined height above the evaporator; alternatively, the first and second electrodes may be,
the condenser is at the same height as the evaporator.
10. The loop heat pipe with the bypass structure according to any one of claims 1 to 5, wherein a check valve is provided on the bypass line.
CN202011149471.0A 2020-10-23 2020-10-23 Loop heat pipe with bypass structure Pending CN114485235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011149471.0A CN114485235A (en) 2020-10-23 2020-10-23 Loop heat pipe with bypass structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011149471.0A CN114485235A (en) 2020-10-23 2020-10-23 Loop heat pipe with bypass structure

Publications (1)

Publication Number Publication Date
CN114485235A true CN114485235A (en) 2022-05-13

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Application Number Title Priority Date Filing Date
CN202011149471.0A Pending CN114485235A (en) 2020-10-23 2020-10-23 Loop heat pipe with bypass structure

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115235275A (en) * 2022-06-30 2022-10-25 歌尔股份有限公司 Loop heat pipe structure and electronic equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115235275A (en) * 2022-06-30 2022-10-25 歌尔股份有限公司 Loop heat pipe structure and electronic equipment

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