CN220493480U - Thermosiphon circulation heat exchanger - Google Patents

Abstract

The application relates to the field of heat exchange equipment and discloses a thermosiphon circulating heat exchanger, which comprises a condenser, a circulating mechanism and a plurality of evaporators, wherein the circulating mechanism comprises a rising pipe and a return pipe, the rising pipe is communicated with an inlet of the condenser, and an outlet of each evaporator is communicated with the rising pipe; the return pipes are communicated with the outlets of the condensers, and the inlets of the evaporators are communicated with the return pipes. The heat dissipation device has the advantages that the overall heat dissipation is reduced, the heat dissipation efficiency of the electrical equipment is low, and the heat dissipation efficiency of each heating element is improved.

Description

Thermosiphon circulation heat exchanger

Technical Field

The present application relates to the field of heat exchange devices, and in particular, to a thermosiphon circulating heat exchanger.

Background

In the operation of electronic or electric equipment, the electronic or electric components in the electronic or electric equipment, especially the components with high heat flux density such as CPU, network chip, IGBT module, power amplifier, etc. need to perform effective heat dissipation to keep in the normal working temperature range, and the natural circulation thermosiphon loop heat dissipation device is one of the high-efficiency heat dissipation means.

The natural circulation thermosiphon loop is used as one of the heat pipes, and the working principle is as follows: the working medium is heated in the evaporator to become a gas phase, flows into the condenser to be condensed into a liquid phase through the ascending pipe under the action of buoyancy lift force, and flows back into the evaporator through the descending pipe under the action of gravity force, so that a self-driven cycle without external pumping power input is formed. The heat pipe has the advantages of no entrainment phenomenon, simple structure and the like, and is a high-efficiency heat exchange device which is widely applied.

At present, the Chinese patent with the publication number of CN210625430U discloses a loop type thermosiphon heat dissipating device, which comprises an evaporator, a condenser, a gas conveying pipe, a liquid conveying pipe and working fluid, wherein the evaporator comprises a first shell, one side of the first shell is provided with a windward surface, the condenser is arranged above the evaporator, the condenser comprises a second shell and a heat dissipating fin group, and the gas conveying pipe is vertically arranged between and communicated with the first shell and the second shell; the liquid conveying Guan Li is arranged between the first shell and the second shell and communicated with each other, and the distance from the liquid conveying pipe to the windward side is smaller than that from the gas conveying pipe to the windward side; the working fluid is filled in the first housing.

For the related art, the inventor finds that the evaporator in the heat dissipating device is generally integrally disposed, and only can dissipate heat of the whole electrical device, but in the electrical device or the electronic device, the heat dissipating device generally includes a plurality of heat generators working independently, so that it is difficult for the heat dissipating device to perform independent heat dissipation treatment on each heat generator, and further the heat dissipating efficiency of each heat generator is affected, and the defect of low applicability of the heat dissipating device exists.

Disclosure of Invention

In order to alleviate the problem of lower applicability of the heat dissipating device, the application provides a thermosiphon circulating heat exchanger.

The application provides a thermosiphon circulation heat exchanger adopts following technical scheme:

a thermosiphon circulation heat exchanger, comprising a condenser, a circulation mechanism and a plurality of evaporators, wherein the circulation mechanism comprises a rising pipe and a return pipe, the rising pipe is communicated with an inlet of the condenser, and an outlet of each evaporator is communicated with the rising pipe; the return pipes are communicated with the outlets of the condensers, and the inlets of the evaporators are communicated with the return pipes.

Through adopting above-mentioned technical scheme, parallelly connected setting of a plurality of evaporators for every evaporator can set up on one of them heat-generating body, thereby can carry out independent heat dissipation to every heat-generating body and handle, reduce whole heat dissipation and lead to the lower possibility of electrical equipment radiating efficiency, improve the radiating efficiency of every heat-generating body.

Preferably, the outlet of each evaporator is communicated with an air outlet pipe, one end of each air outlet pipe, which is far away from the evaporator and connected with the air outlet pipe, is communicated with a riser pipe, the inlet of each evaporator is communicated with a liquid inlet pipe, each liquid inlet pipe is far away from the evaporator, one end of each evaporator is communicated with a return pipe, the air outlet pipes and the liquid inlet pipes on the same evaporator are provided with plugging components, and the plugging components are used for controlling the opening and closing of the air outlet pipes and the liquid inlet pipes.

Through adopting above-mentioned technical scheme, all set up the shutoff subassembly on outlet duct and the feed liquor pipe that every evaporimeter is connected, in electrical equipment use, different heat-generating bodies often run time different, when certain heat-generating body did not run, outlet duct and feed liquor pipe on the evaporimeter that corresponding heat-generating body was connected pass through the shutoff of shutoff subassembly for working medium in tedge and the back flow can not get into on the evaporimeter that does not run, improves the radiating efficiency of other heat-generating bodies.

Preferably, the plugging assembly comprises two plugging plates and two driving motors, wherein one plugging plate is rotationally connected in the air outlet pipe, the other plugging plate is rotationally connected in the liquid inlet pipe, one driving motor is fixedly connected on the air outlet pipe, the driving motor is fixedly connected on the air outlet pipe and rotationally connected on the air outlet pipe is in transmission connection with the plugging plate, and the driving motor is fixedly connected on the liquid inlet pipe and rotationally connected on the liquid inlet pipe is in transmission connection with the plugging plate.

Through adopting above-mentioned technical scheme, when a certain heating plate is not running, two driving motor starts on the outlet duct and the feed liquor pipe that heating plate is connected, and two driving motor drive two shutoff boards respectively rotate for two shutoff boards can be with outlet duct and back flow shutoff respectively, can avoid the working medium to get into in the evaporimeter that the heat-generating body that is not running is connected, reduce the possibility that causes the influence to other evaporimeter work efficiency.

Preferably, a plurality of cooling fins are fixedly connected to the condenser, and the cooling fins are arranged at intervals along the length direction of the condenser.

Through adopting above-mentioned technical scheme, set up a plurality of fin on the condenser, the heat of condenser can be through a plurality of fin out diffusion, improves the heat dispersion of condenser.

Preferably, the condenser is provided with a heat dissipation mechanism, the heat dissipation mechanism comprises a driving assembly and a plurality of diffusion sheets, the diffusion sheets are all rotationally connected to the condenser, the length direction of each diffusion sheet is perpendicular to the length direction of each heat dissipation sheet, the diffusion sheets are all connected with the driving assembly, and the driving assembly is used for rotating the diffusion sheets so that two ends of the diffusion sheets are alternately abutted to the heat dissipation sheets.

Through adopting above-mentioned technical scheme, in the condenser use, because the fin is far away from the heat source, the temperature is just lower, when the temperature reduces to near ambient temperature, the fin even the heat transfer of overlength also can not increase, consequently the fin outwards extends the process and can not improve the heat-sinking capability of condenser, utilize the setting of diffusion piece, in the condenser use, after the heat transfer is on the fin, can transmit to the one end with diffusion piece and fin butt, after the one end of diffusion piece and fin butt intensifies, utilize drive assembly to drive a plurality of diffusion pieces upset, can make the higher one end of temperature rotate to the position of keeping away from the fin dispel the heat, simultaneously the lower one end of diffusion piece temperature will be laminated with the diffusion piece, can continue to absorb the heat of fin, utilize the heat-sinking capability of diffusion piece both ends to the alternate heat absorption energy effectively increase the fin, and then improve the radiating efficiency of condenser.

Preferably, the driving assembly comprises an electric pushing cylinder, a rack and a plurality of gears, the electric pushing cylinder is fixedly connected to the condenser, the rack is slidably connected to the condenser, a piston rod of the electric pushing cylinder is connected with the rack to drive the rack to slide, the gears are arranged in one-to-one correspondence with the diffusion sheets, the gears are fixedly connected with the diffusion sheets, a rotation axis of the gears is collinear with a rotation axis of the diffusion sheets, and the gears are meshed with the rack.

Through adopting above-mentioned technical scheme, utilize the piston rod of electricity push away the jar flexible can drive the rack and slide, the rack slides and drives a plurality of gears of being connected rather than the meshing and remove, drives a plurality of diffusion pieces and rotates in step then, realizes that a plurality of diffusion pieces are synchronous alternately to the fin absorbs heat.

Preferably, each of the two ends of the diffusion sheet in the width direction is provided with a clamping groove, a plurality of clamping grooves located on the same side of the diffusion sheet are arranged in one-to-one correspondence with a plurality of cooling sheets, and the cooling sheets can be inserted into the clamping grooves.

Through adopting above-mentioned technical scheme, open the joint groove at the diffuser plate, when the one end and the fin contact of diffuser plate, can block at a plurality of fins through the joint groove on the diffuser plate, and then improve the area of contact of diffuser plate and fin, improve the heat conduction ability between diffuser plate and the fin.

Preferably, the ascending pipe is communicated with a charging pipe, and the charging pipe is provided with a control valve.

Through adopting above-mentioned technical scheme, utilize the setting of filling matter pipe, the staff can open the control valve and pass through filling matter pipe ascending pipe and supply working medium, is convenient for supply the working medium in the heat exchanger.

Preferably, the outer sides of the rising pipe and the return pipe are respectively sleeved with heat preservation cotton.

By adopting the technical scheme, the heat insulation capacity of the riser and the return pipe is increased by utilizing the arrangement of the heat insulation cotton, and the heat dissipation of working media in the flowing process is reduced.

In summary, the present application at least includes the following beneficial technical effects:

1. by arranging the evaporators in parallel, each evaporator can be arranged on one of the heating bodies, so that independent heat dissipation treatment can be carried out on each heating body, the possibility of low heat dissipation efficiency of electrical equipment caused by integral heat dissipation is reduced, and the heat dissipation efficiency of each heating body is improved;

2. by arranging the plugging components on the air outlet pipe and the liquid inlet pipe, when a certain heating element is not operated in the use process of the electrical equipment, the air outlet pipe and the liquid inlet pipe on the evaporator connected with the corresponding heating element are plugged by the plugging components, so that working media in the ascending pipe and the return pipe cannot enter the non-operated evaporator, and the heat dissipation efficiency of other heating elements is improved;

3. through rotating on the condenser and connecting a plurality of diffusion pieces, utilize the diffusion piece both ends to the heat dissipation capacity of heat dissipation piece effectively increases to the heat dissipation piece of heat dissipation piece's alternate heat absorption, and then improves the radiating efficiency of condenser.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of the circulation mechanism in an embodiment of the present application;

FIG. 3 is a schematic structural view of a plugging assembly according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a heat dissipation mechanism according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of a driving assembly according to an embodiment of the present application;

fig. 6 is an enlarged schematic view of the portion a in fig. 5 of the present application.

Reference numerals: 100. a condenser; 200. an evaporator; 210. an air outlet pipe; 220. a liquid inlet pipe; 230. a plugging assembly; 231. a driving motor; 232. a plugging plate; 300. a circulation mechanism; 310. a rising pipe; 320. a return pipe; 330. a filler tube; 340. a control valve; 400. a heat sink; 500. a heat dissipation mechanism; 510. a diffusion sheet; 511. a clamping groove; 520. a drive assembly; 521. an electric pushing cylinder; 522. a gear; 523. a rack.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses a thermosiphon circulating heat exchanger.

Referring to fig. 1 and 2, a thermosiphon circulation heat exchanger includes a condenser 100 and a plurality of evaporators 200, three evaporators 200 being provided in the present embodiment, four, five, etc. plurality of evaporators 200 being provided in other embodiments; in this embodiment, the plurality of evaporators 200 are arranged side by side, and in other embodiments, the arrangement may be changed according to actual needs. The outlet of each evaporator 200 is connected to an air outlet pipe 210, and the inlet of each evaporator 200 is connected to a liquid inlet pipe 220. The circulation mechanism 300 is installed on the evaporators 200, the circulation mechanism 300 comprises a rising pipe 310, the rising pipe 310 is fixedly connected to the air outlet pipes 210, each air outlet pipe 210 is communicated with the rising pipe 310, one end, far away from the air outlet pipes 210, of the rising pipe 310 is communicated with the inlet of the condenser 100, the outlet of the condenser 100 is communicated with a return pipe 320, one end, far away from the evaporator 200 connected with the liquid inlet pipe 220, of the circulating mechanism is fixedly connected with the return pipe 320, and each liquid inlet pipe 220 is communicated with the return pipe 320. By utilizing the parallel arrangement of the plurality of evaporators 200, each evaporator 200 can be installed on an independent heating body, and then each independent heating body is subjected to heat dissipation treatment, so that the possibility of low heat dissipation efficiency of electrical equipment caused by overall heat dissipation is reduced, and the heat dissipation efficiency of each heating body is improved.

Referring to fig. 2 and 3, each of the air outlet pipe 210 and the liquid inlet pipe 220 is provided with a blocking assembly 230, each of the blocking assemblies 230 includes two driving motors 231, each of the driving motors 231 is electrically connected with a controller in an electrical device, one of the driving motors 231 is fixedly connected to the air outlet pipe 210, one of the blocking plates 232 is rotatably connected to the air outlet pipe 210, the blocking plate 232 rotatably connected to the air outlet pipe 210 is fixedly connected to a spindle of the driving motor 231 fixedly connected to the air outlet pipe 210, and the driving motor 231 can drive the blocking plate 232 connected to the driving motor to rotate to block the air outlet pipe 210.

The other driving motor 231 is fixedly connected in the liquid inlet pipe 220, the other plugging plate 232 is rotationally connected in the liquid inlet pipe 220, the plugging plate 232 rotationally connected in the liquid inlet pipe 220 is coaxially and fixedly connected with a main shaft of the driving motor 231 fixedly connected on the liquid inlet pipe 220, and the driving motor 231 can drive the plugging plate 232 connected with the driving motor to rotationally plug the liquid inlet pipe 220. When the electric equipment is used, the heating elements in the electric equipment tend to have different running time, and when a certain heating element does not run, the controller in the electric equipment can control the two driving motors 231 on the evaporator 200 connected to the corresponding heating element to start, so that each driving motor 231 drives the plugging plate 232 coaxially and fixedly connected with the driving motor 231 to rotate, thereby the two plugging plates 232 plug the air outlet pipe 210 and the liquid inlet pipe 220 communicated with the evaporator 200, the possibility that working media enter the non-running evaporator 200 is reduced, and the heat dissipation efficiency of other heating elements is ensured.

Referring to fig. 2, in order to facilitate the replenishment of working medium into the heat exchanger, a charging tube 330 is fixedly connected to the rising tube 310, the charging tube 330 is connected to the rising tube 310 internally, a control valve 340 is installed on the charging tube 330, and the control valve 340 is used for controlling the opening and closing of the charging tube 330. By means of the arrangement of the charging tube 330, working medium can be charged into the heat exchanger by opening the control valve 340, so that the heat exchanger is convenient to maintain.

Referring to fig. 1 and 2, the outside of the rising pipe 310 and the return pipe 320 are respectively sleeved with insulation cotton. The heat-insulating cotton is utilized to reduce the heat exchange quantity between the working medium and the outside in the up-and-down flowing process, and the influence on the heat dissipation efficiency of the heating body is reduced.

Referring to fig. 1 and 4, a plurality of cooling fins 400 are fixedly connected to the condenser 100, and the plurality of cooling fins 400 are disposed at intervals along the length direction of the condenser 100. The heat dissipation mechanism 500 is mounted on the condenser 100, and the heat dissipation mechanism 500 includes a plurality of diffusion sheets 510, wherein the length direction of each diffusion sheet 510 is perpendicular to the length direction of the heat dissipation sheet 400, and the plurality of diffusion sheets 510 are arranged at intervals along the width direction of the condenser 100. Each diffusion plate 510 is rotatably coupled to the condenser 100, and the rotation axis of each diffusion plate 510 is parallel to the longitudinal direction thereof. A driving assembly 520 is installed on the condenser 100, and the driving assembly 520 is used for starting the plurality of diffusion sheets 510 to synchronously turn over.

A plurality of clamping grooves 511 are formed in two ends of the width direction of each diffusion sheet 510, a plurality of clamping grooves 511 located at the same end of each diffusion sheet 510 are arranged at intervals along the length direction of each diffusion sheet 510, a plurality of clamping grooves 511 located at one end of each diffusion sheet 510 are arranged in one-to-one correspondence with a plurality of cooling fins 400, and each clamping groove 511 can be in plug-in fit with the corresponding cooling fin 400.

Referring to fig. 5 and 6, the driving assembly 520 includes a plurality of gears 522, the plurality of gears 522 are disposed in one-to-one correspondence with the plurality of diffusion sheets 510, the gears 522 are fixedly connected with their corresponding diffusion sheets 510, and the rotation axes of the gears 522 are collinear with the rotation axes of their fixedly connected diffusion sheets 510. The condenser 100 is fixedly connected with an electric pushing cylinder 521, a piston rod of the electric pushing cylinder 521 is fixedly connected with a rack 523, the length direction of the rack 523 is perpendicular to the length direction of the diffusion sheet 510, the rack 523 is connected to the condenser 100 in a sliding manner along the length of the rack 523, each gear 522 is meshed with the rack 523, and the rack 523 can drive a plurality of gears 522 to synchronously rotate. By providing the heat sink 400 on the condenser 100, the heat radiation capability of the condenser 100 is ensured by the heat sink 400, but since the further the heat source is, the lower the temperature is, and when the temperature is lowered to the vicinity of the ambient temperature, the heat transfer of the heat sink 400 is not increased even if it is longer, so that the heat radiation capability of the condenser 100 cannot be improved by the heat sink 400 alone extending outward; when the condenser 100 is used, one end of the diffusion sheet 510 is abutted against the plurality of cooling fins 400, the contact area between the diffusion sheet 510 and the cooling fins 400 is increased by the insertion fit of the clamping grooves 511 and the cooling fins 400, after the temperature of one end of the diffusion sheet 510 abutted against the cooling fins 400 rises, the electric pushing cylinder 521 is started, the rack 523 is driven by the electric pushing cylinder 521 to slide so as to drive the plurality of gears 522 to rotate, the plurality of diffusion sheets 510 are driven to overturn, one end with higher temperature is driven to rotate to a position far away from the cooling fins 400 for cooling, and meanwhile, one end with lower temperature of the diffusion sheet 510 is attached to the diffusion sheet 510, so that the heat of the cooling fins 400 can be continuously absorbed, the heat of the cooling fins 400 can be absorbed alternately through the two ends of the diffusion sheet 510, the heat dissipation capacity of the cooling fins 400 can be effectively increased, and the heat dissipation efficiency of the condenser 100 is improved.

The implementation principle of the thermosiphon circulation heat exchanger provided by the embodiment of the application is as follows: the evaporators 200 are arranged in parallel, and the circulation communication of the evaporators 200 and the condenser 100 is realized through the ascending pipe 310 and the return pipe 320, when the evaporator is used, the evaporators 200 are respectively arranged on a plurality of independent heating bodies, so that each independent heating body is subjected to heat dissipation treatment, the possibility that the heat dissipation efficiency of the electric equipment is lower due to the integral heat dissipation is reduced, and the heat dissipation efficiency of each heating body is improved; meanwhile, the rotation of the plurality of diffusion sheets 510 is utilized to enable the two ends of the diffusion sheets 510 to alternately absorb heat to the heat sink 400, thereby increasing the heat dissipation capacity of the heat sink 400 and improving the heat dissipation efficiency of the condenser 100

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. A thermosiphon circulating heat exchanger characterized by: comprises a condenser (100), a circulation mechanism (300) and a plurality of evaporators (200), wherein the circulation mechanism (300) comprises a rising pipe (310) and a return pipe (320), the rising pipe (310) is communicated with an inlet of the condenser (100), and an outlet of each evaporator (200) is communicated with the rising pipe (310); -said return line (320) being in communication with an outlet of said condenser (100), an inlet of each of said evaporators (200) being in communication with said return line (320);

every export of evaporimeter (200) all communicates there is outlet duct (210), every outlet duct (210) keep away from the one end of evaporimeter (200) that oneself is connected all with riser (310) intercommunication, every the import of evaporimeter (200) all communicates there is feed liquor pipe (220), every feed liquor pipe (220) keep away from oneself evaporimeter (200) one end of connection all with back flow (320) intercommunication, be located on the same outlet duct (210) with all be provided with shutoff subassembly (230) on feed liquor pipe (220), shutoff subassembly (230) are used for right outlet duct (210) with the start and stop of feed liquor pipe (220) are controlled.

2. A thermosiphon circulation heat exchanger according to claim 1, characterized in that: the plugging assembly (230) comprises two plugging plates (232) and two driving motors (231), wherein one plugging plate (232) is rotationally connected in the air outlet pipe (210), the other plugging plate (232) is rotationally connected in the liquid inlet pipe (220), one driving motor (231) is fixedly connected on the air outlet pipe (210), the driving motor (231) is fixedly connected on the air outlet pipe (210) is in transmission connection with the plugging plate (232) which is rotationally connected on the air outlet pipe (210), and the driving motor (231) is fixedly connected on the liquid inlet pipe (220) is in transmission connection with the plugging plate (232) which is rotationally connected on the liquid inlet pipe (220).

3. A thermosiphon circulation heat exchanger according to claim 1, characterized in that: a plurality of cooling fins (400) are fixedly connected to the condenser (100), and the cooling fins (400) are arranged at intervals along the length direction of the condenser (100).

4. A thermosiphon circulating heat exchanger according to claim 3, characterized in that: be provided with cooling mechanism (500) on condenser (100), cooling mechanism (500) are including drive assembly (520) and a plurality of diffusion piece (510), and is a plurality of diffusion piece (510) are all rotated and are connected on condenser (100), every diffusion piece (510) length direction all with the length direction of fin (400) is perpendicular, a plurality of diffusion piece (510) all with drive assembly (520) are connected, drive assembly (520) are used for a plurality of diffusion piece (510) rotate so that diffusion piece (510) both ends alternately with fin (400) butt.

5. A thermosiphon circulating heat exchanger according to claim 4, characterized in that: the driving assembly (520) comprises an electric pushing cylinder (521), a rack (523) and a plurality of gears (522), wherein the electric pushing cylinder (521) is fixedly connected to the condenser (100), the rack (523) is slidably connected to the condenser (100), a piston rod of the electric pushing cylinder (521) is connected with the rack (523) to drive the rack (523) to slide, the gears (522) are arranged in one-to-one correspondence with the diffusion sheets (510), the gears (522) are fixedly connected with the diffusion sheets (510), the rotation axis of the gears (522) is collinear with the rotation axis of the diffusion sheets (510), and the gears (522) are meshed with the rack (523).

6. A thermosiphon circulating heat exchanger according to claim 4, characterized in that: each of the two ends of the diffusion sheet (510) in the width direction is provided with a clamping groove (511), a plurality of clamping grooves (511) located on the same side of the diffusion sheet (510) are arranged in one-to-one correspondence with a plurality of cooling fins (400), and the cooling fins (400) can be inserted into the clamping grooves (511).

7. A thermosiphon circulation heat exchanger according to claim 1, characterized in that: the rising pipe (310) is communicated with a charging pipe (330), and a control valve (340) is arranged on the charging pipe (330).

8. A thermosiphon circulation heat exchanger according to claim 1, characterized in that: and heat preservation cotton is sleeved on the outer sides of the rising pipe (310) and the return pipe (320).