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CN-224215913-U - Parallel multi-evaporator loop heat pipe

CN224215913UCN 224215913 UCN224215913 UCN 224215913UCN-224215913-U

Abstract

The utility model relates to the field of loop heat pipes, in particular to a parallel multi-evaporator loop heat pipe which comprises a plurality of evaporators, condensers and liquid reservoirs, wherein capillary cores are arranged in the evaporators, the interior of each evaporator is divided into an upper cavity and a lower cavity by the capillary cores, a liquid pipeline comprises a liquid main pipeline and a plurality of liquid branch pipelines, the vapor pipeline comprises a vapor main pipeline and a plurality of vapor branch pipelines, when the number of heat sources is changed, the number of the evaporators can be changed as required, and the vapor pipeline and the liquid pipelines are designed into detachable assembled structures, so that the lengths of the vapor pipeline and the liquid pipelines are correspondingly changed when the subsequent heat sources are changed, and the parallel multi-evaporator loop heat pipe can be suitable for being used in a multi-point heat source environment. The evaporator loop heat pipe prolongs the time of liquid phase change of working media and prolongs the service life of the loop heat pipe by changing the number of filling strips for blocking the water flow grooves.

Inventors

  • SUN HAIWANG
  • WANG XINGHAO
  • QIN GUOQIANG
  • LIU XINGNAN

Assignees

  • 安徽提尔液冷科技有限公司

Dates

Publication Date
20260508
Application Date
20250612

Claims (8)

  1. 1. The utility model provides a parallelly connected many evaporimeter loop heat pipe, a serial communication port, including a plurality of evaporimeters (1), condenser (2) and reservoir (3), evaporator (1) inside is provided with capillary core (1 a), capillary core (1 a) are with the inside last cavity of cutting apart into of evaporimeter (1) and lower cavity, liquid pipeline (5) are including liquid trunk line (5 a) and a plurality of liquid lateral conduit (5 b), the one end and the delivery port UNICOM of liquid trunk line (5 a) of a plurality of liquid lateral conduit (5 b), the other end of a plurality of liquid lateral conduit (5 b) respectively with a plurality of evaporimeters (1) and go up the cavity UNICOM, the water inlet and the delivery port of reservoir (3) of liquid trunk line (5 a) are connected, vapor pipeline (4) include vapor trunk line (4 a) and a plurality of vapor lateral conduit (4 b), the one end and the air inlet of vapor trunk line (4 a) are connected, the other end and a plurality of lower cavity respectively of liquid lateral conduit (5 b), the trunk line of vapor trunk line (4 a) and the delivery port UNICOM of condenser (2) are connected with the delivery port of a plurality of liquid heat source (2), the air inlet and the bottom of a plurality of evaporator (2) of condenser (2) contact with a plurality of liquid outlet of the bottom of the condenser (1) respectively.
  2. 2. A parallel multi-evaporator loop heat pipe as claimed in claim 1, wherein the main vapor pipe (4 a) comprises a plurality of three-way air pipes (4 a 1), a plurality of extension air pipes (4 a 2) and a three-way main air pipe (4 a 3), one end of the three-way main air pipe (4 a 3) is communicated with the vapor branch pipe (4 b) of the first evaporator (1), the second end of the three-way main air pipe (4 a 3) is connected with the condenser (2), the third end of the three-way main air pipe (4 a 3) is connected with one end of the three-way air pipe (4 a 1), the second end of the three-way air pipe (4 a 1) is connected with one end of the next three-way air pipe (4 a 1) through the extension air pipe (4 a 2), the third end of the three-way air pipe (4 a 1) is communicated with the vapor branch pipe (4 b) of the other evaporator (1), and a sealing plate sealed at the opening of the three-way air pipe (4 a 1) is arranged at the tail end.
  3. 3. A parallel multi-evaporator loop heat pipe as claimed in claim 1, wherein the main liquid pipe (5 a) comprises a plurality of three-way liquid pipes (5 a 1), a plurality of extension liquid pipes (5 a 2) and a three-way main liquid pipe (5 a 3), one end of the three-way main liquid pipe (5 a 3) is communicated with the liquid branch pipe (5 b) of the first evaporator (1), the second end of the three-way main liquid pipe (5 a 3) is connected with the liquid reservoir (3), the third end of the three-way main liquid pipe (5 a 3) is connected with one end of the three-way liquid pipe (5 a 1), the second end of the three-way liquid pipe (5 a 1) is connected with one end of the next three-way liquid pipe (5 a 1) through the extension liquid pipe (5 a 2), the third end of the three-way liquid pipe (5 a 1) is communicated with the liquid branch pipe (5 b) of the other evaporator (1), and a sealing plate two sealing openings of the three-way liquid pipe (5 a 1) are arranged at the tail ends.
  4. 4. A parallel multi-evaporator loop heat pipe as claimed in claim 1, wherein an upper clamping block (1 c 1) is fixedly arranged in the upper chamber, a water flow groove (1 c 2) is formed in the bottom of the upper clamping block (1 c 1), the water flow groove (1 c 2) is communicated with the liquid branch pipe (5 b), and a plurality of filling strips (1 e) are detachably arranged in the water flow groove (1 c 2).
  5. 5. A parallel multi-evaporator loop heat pipe as claimed in claim 4, wherein a plurality of criss-cross water flow grooves (1 c 2) are formed in the bottom of the upper clamping block (1 c 1), a plurality of filling strips (1 e) are clamped into the plurality of water flow grooves (1 c 2) distributed transversely, and the plurality of filling strips (1 e) are gradually clamped into and filled in from outside to inside.
  6. 6. The parallel multi-evaporator loop heat pipe according to claim 4, wherein the evaporator (1) comprises a heated plate (1 b), a top cover (1 c) and a shell (1 d), the top cover (1 c) and the heated plate (1 b) are respectively fixedly installed at the upper end and the lower end of the shell (1 d), an upper clamping block (1 c 1) and the top cover (1 c) are of an integrated structure, a water inlet pipe is arranged on the top cover (1 c), the bottom of the water inlet pipe penetrates through a water flow groove (1 c 2), the water inlet pipe is communicated with the water flow groove (1 c 2), and the bottom of the heated plate (1 b) is contacted with a heat source.
  7. 7. A parallel multi-evaporator loop heat pipe as claimed in claim 5, wherein a lower clamping block (1 b 1) is fixedly arranged on the heated plate (1 b), the top of the lower clamping block (1 b 1) is in contact with the bottom of the capillary core (1 a), a plurality of air flow grooves (1 b 2) are formed in the lower clamping block (1 b 1), the plurality of air flow grooves (1 b 2) are communicated through the collecting groove (1 b 3), and one end of the collecting groove (1 b 3) penetrates through the lower clamping block (1 b 1) to be communicated with one end of the steam branch pipe (4 b).
  8. 8. A parallel multi-evaporator loop heat pipe as claimed in claim 5, wherein a sealing ring (1 f) is arranged between the bottom of the housing (1 d) and the heated plate (1 b), the sealing ring (1 f) wraps the middle cavity of the housing (1 d), and a containing groove for the sealing ring (1 f) to be clamped in is formed in the housing (1 d).

Description

Parallel multi-evaporator loop heat pipe Technical Field The utility model relates to the field of loop heat pipes, in particular to a parallel multi-evaporator loop heat pipe. Background The loop heat pipe has two important functions of absorbing heat from a heat source and providing working medium circulating power, a capillary core is arranged in the loop heat pipe, an axial channel at the outer side is a steam channel, and a liquid channel at the inner side. The evaporator mainly comprises an evaporator, a condenser, a liquid storage device, a vapor pipeline and a liquid pipeline. The Chinese patent application discloses application number CN201020296533.6, and the name is a flat plate type loop heat pipe, which is mainly used for solving the problem that the heat conduction from the back to the side wall of the plate type loop heat pipe is serious due to the special structure of an evaporator of the plate type loop heat pipe, and even under the condition of small heat load, working medium phase change occurs in a liquid compensation cavity of the plate type loop heat pipe due to the back heat leakage of the evaporator easily, so that the loop heat pipe is failed to start. Although this application can solve the problem of liquid working medium phase transition, its solution is through the top thermal-insulated, and the side still has the heat, still can take place the problem of liquid working medium phase transition for a long time use. If the problem is to be solved, it is mainly how to make the liquid flow through the capillary core and be directly vaporized before the phase change of the liquid working medium occurs. At the same time, the application can only cool a single heat source, but can not cool a plurality of heat sources at the same time. However, if the number of heat sources is changed as needed, the number of evaporators may be changed as needed, and the length of the vapor pipe and the length of the liquid pipe are designed to have a fixed length structure at the beginning, it is difficult to change the length according to the change of the heat sources. Therefore, it is necessary to design a parallel multi-evaporator loop heat pipe, which can enable the liquid to flow through the capillary core before vaporization, can adjust the flow rate of the liquid according to various air temperature environments, so as to ensure that the liquid flows through the capillary core before vaporization, and can be applied to a plurality of heat sources for simultaneous cooling. Disclosure of utility model The utility model aims to provide a parallel multi-evaporator loop heat pipe. To achieve the purpose, the utility model adopts the following technical scheme: The utility model provides a parallelly connected many evaporimeter loop heat pipe, including a plurality of evaporimeters, condenser and reservoir, the inside capillary core that is provided with of evaporimeter, the capillary core is with the inside last cavity of cutting apart of evaporimeter and lower cavity, the liquid pipeline includes liquid trunk line and a plurality of liquid lateral conduit, the one end and the delivery port UNICOM of liquid trunk line of a plurality of liquid lateral conduit, the other end and a plurality of evaporimeters and last cavity UNICOM respectively of a plurality of liquid lateral conduit, the water inlet and the delivery port of reservoir of liquid trunk line are connected, the steam pipeline includes vapor trunk line and a plurality of vapor lateral conduit, the one end and the air inlet of vapor trunk line are connected, the other end and a plurality of lower cavity UNICOM respectively of vapor trunk line, the gas outlet and the air inlet of condenser are connected, the liquid outlet and the inside UNICOM of reservoir of condenser, the bottom of a plurality of evaporimeters contacts with a plurality of heat sources respectively. Further, the main steam pipeline comprises a plurality of tee-joint air pipes, a plurality of extension air pipes and a tee-joint main air pipe, one end of the tee-joint main air pipe is communicated with the steam branch pipeline of the first evaporator, the second end of the tee-joint main air pipe is connected with the condenser, the third end of the tee-joint main air pipe is connected with one end of the tee-joint air pipe, the second end of the tee-joint air pipe is connected with one end of the next tee-joint air pipe through the extension air pipe, the third end of the tee-joint air pipe is communicated with the steam branch pipeline of the other evaporator, and a sealing plate I sealed to the opening of the tee-joint air pipe is arranged at the tail end. Further, the liquid main pipeline comprises a plurality of tee bend liquid pipes, a plurality of extension liquid pipes and tee bend main liquid pipe, the one end of tee bend main liquid pipe and the liquid lateral pipe UNICOM of first evaporimeter, and the second end and the reservoir of tee bend main liquid pipe are co