CN107894179A - Free hot and cold side gravity micro heat pipe and its method of work - Google Patents
Free hot and cold side gravity micro heat pipe and its method of work Download PDFInfo
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- CN107894179A CN107894179A CN201711115531.5A CN201711115531A CN107894179A CN 107894179 A CN107894179 A CN 107894179A CN 201711115531 A CN201711115531 A CN 201711115531A CN 107894179 A CN107894179 A CN 107894179A
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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
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- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
Abstract
The invention discloses a kind of free hot and cold side gravity micro heat pipe and its method of work, including the work hot junction for evaporation endothermic and the work cold end for condensing heat release, passage is fled from by gas respectively between evaporator section and condensation segment and connected with liquid supplement runner；Present invention incorporates conventional heat pipe to bear the characteristics of heat-loading capacity is big and low-grade fever pipe size is compact；By setting, gas made of flexible heat-insulating material flees from passage and liquid supplements runner, so that the hot and cold side relative position of micro heat pipe has very big adjusting range, it can be applied to most of working environment, runner is supplemented by the connecting pipe, gas-liquid separation capsule, liquid rationally arranged, improve utilization rate of the micro heat pipe to gravity, solve that most heat production is big by the micro heat pipe of the present invention, the heat dissipation problem of the small component of dimensional space.
Description
【Technical field】
The invention belongs to hot pipe technique field, and in particular to a kind of free hot and cold side gravity micro heat pipe and its method of work.
【Background technology】
Hot pipe technique can be divided into two major classes, i.e. conventional heat pipe and micro heat pipe.
Conventional heat pipe：Conventional heat pipe includes all heat pipes that hydraulic diameter is more than 500 microns, by U.S. Los Alamos
George Ge Luofo (George Grover) of National Laboratory takes the lead in inventing, main phase transformation using hydraulic fluid and
Two-phase fluid is flowed to realize a kind of heat conducting element of heat transfer, and its capacity of heat transmission is far above common metal.By shell, inhale
Wick-containing and end cap composition, are divided into three sections during work, evaporator section, adiabatic section and condensation segment.Low pressure, liquid-sucking core are pumped into inside pipeline
Layout is on tube wall, and after heat pipe evaporator section is heated, heated liquid gasifies in liquid-sucking core, and steam flows into by the effect of thermal diffusion
Condensation segment liquefies, and liquid phase after liquefaction flows back to evaporator section along the similar porous material such as liquid-sucking core in the presence of capillary force,
Until when two sections of temperature are identical, heat pipe is stopped.Advantage is that can bear very high heat carries, and can be up to megawatt rank,
But its size is larger, cost is high.
Micro heat pipe：Micro heat pipe includes all types of heat pipes that hydraulic diameter is less than 500 microns, also with hydraulic fluid
Phase transformation and the flowing of two-phase fluid realize a kind of heat conducting element of heat transfer, normally only by packing container with it is packaging
Hydraulic fluid composition.Three sections of evaporator section, adiabatic section and condensation segment are also classified into during work, after micro heat pipe evaporator section is heated, pipe
Interior heated liquid gasification, steam flow condensation segment are liquefied, the hair that the liquid phase after liquefaction is provided along tube wall in structural pipe wall
Evaporator section is flowed back in the presence of thin power, until when two sections of temperature are identical, heat pipe is stopped.Advantage is that size is compact, shortcoming
It is that very high heat load can not be born, is only capable of reaching hectowatt grade, and its condensation segment does not have substantially with evaporating intersegmental relative position
There is the leeway of adjustment.Therefore, for the heat dissipation problem of some heat production are big, dimensional space is small component, there is presently no preferable
Method solve.
【The content of the invention】
It is an object of the invention to provide a kind of free hot and cold side gravity micro heat pipe and its method of work, to solve existing low-grade fever
Pipe bears heat and carries the problem of low, adjustable space is small.
The present invention a kind of technical scheme be：A kind of free hot and cold side gravity micro heat pipe, including the work for evaporation endothermic
Make hot junction and the work cold end for condensing heat release, passage is fled from by gas respectively between evaporator section and condensation segment and liquid is mended
Fill runner connection；
Work hot junction includes hydraulic fluid evaporator tank, and it is saturating to be disposed with Pu Wei waterproofs on the top of hydraulic fluid evaporator tank
Air film and working steam persist groove, and working steam persists the top venthole of groove and gas flees from the bottom air intake phase of passage
Even；
Work cold end includes steam cooling cylinder, and the top that the bottom air intake and gas of steam cooling cylinder flee from passage goes out vapour
Mouth is connected, and steam cooling cylinder is also connected by connecting pipe with gas-liquid separation capsule, the bottom liquid outlet and liquid of gas-liquid separation capsule
The top inlet connection of body supplement runner, it is saturating that the bottom liquid outlet of liquid supplement runner through steam persists groove, Pu Wei waterproofs
Air film is connected to hydraulic fluid evaporator tank.
Further, gas flees from passage and liquid supplement runner is made by flexible heat-insulating material.
Further, the gravitional force for the cold end that works is more than the gravitional force in work hot junction.
Further, gas is fled from and resistance wire is provided with vias inner walls, and resistance wire is used to generate heat when working and being powered, with
Ensure that the steam in it will not liquefy.
Further, gas, which is fled from, is arranged with heat-insulation layer on channel outer wall.
Further, liquid supplement runner and connecting pipe stretch into the intracapsular portion of gas-liquid separation, and liquid supplements runner
The gravitional force on top is less than the gravitional force of connecting pipe bottom.
Further, gas-liquid separation capsule top is provided with open top.
Further, adhesive means are used between each part.
The present invention another technical solution be：A kind of method of work of cold and hot section of gravity micro heat pipe as described above, by work
Liquid evaporation groove is in close contact with heater element, and heating element generating heat makes the hydraulic fluid in hydraulic fluid evaporator tank gasify, raw
Into steam；
Passage is fled from by gas vapor transmission to steam cooling cylinder, steam are liquefied in steam cooling cylinder, shape
Into hydraulic fluid；
Hydraulic fluid is discharged into that gas-liquid separation is intracapsular by connecting pipe, when the intracapsular hydraulic fluid liquid level of gas-liquid separation exceedes
When liquid supplements the top inlet of runner, inlet, liquid outlet that hydraulic fluid passes sequentially through liquid supplement runner are discharged into work
Make in liquid evaporation groove；
The above course of work is repeated until completing the cooling of heater element.
The beneficial effects of the invention are as follows：Combine conventional heat pipe and bear the spy that heat-loading capacity is big and low-grade fever pipe size is compact
Point；By setting, gas made of flexible heat-insulating material flees from passage and liquid supplements runner so that the hot and cold side of micro heat pipe
Relative position has very big adjusting range, can be applied to most of working environment, passes through the connecting pipe rationally arranged, gas-liquid
Capsule, liquid supplement runner are separated, utilization rate of the micro heat pipe to gravity is improved, solves a big portion by the micro heat pipe of the present invention
Divide heat production big, the heat dissipation problem of the small component of dimensional space.
【Brief description of the drawings】
Fig. 1 is the structural representation of the free hot and cold side gravity micro heat pipe of the present invention；
Fig. 2 is the schematic diagram of the free hot and cold side gravity micro heat pipe steam-return line of the present invention；
Fig. 3 is the schematic diagram in the free hot and cold side gravity micro heat pipe hydraulic fluid loop of the present invention.
Wherein：1. hydraulic fluid evaporator tank；2. Pu Wei waterproof ventilated membranes；3. working steam persists groove；4. liquid supplement stream
Road；5. gas-liquid separation capsule；6. connecting pipe；7. steam cooling cylinder；8. gas flees from passage.
【Embodiment】
The present invention is described in detail with reference to the accompanying drawings and detailed description.
The invention discloses a kind of free hot and cold side gravity micro heat pipe, as shown in figure 1, including the work for evaporation endothermic
Hot junction and the work cold end for condensing heat release, the gravitional force for the cold end that works are higher than the gravitional force in work hot junction.Evaporator section
Passage 8 is fled from by gas respectively between condensation segment and liquid supplements runner 4 and connected, gas flees from passage 8 and liquid supplement
Runner 4 is made by flexible heat-insulating material, and therefore, work hot junction and work cold end relative position can be any within the specific limits
Arrangement, is not limited by locality etc., need to only ensure that the gravitional force of work cold end is more than the gravitional force in work hot junction.
Work hot junction includes hydraulic fluid evaporator tank 1, and the shape of hydraulic fluid evaporator tank 1 and the contact surface of heater element is set
The shape being engaged with heater element is counted into, becomes the concaveconvex structure of contrast so that hydraulic fluid evaporator tank 1 and hair
Being capable of blind-mate between thermal element
Pu Wei waterproof ventilated membranes 2 are disposed with the top of hydraulic fluid evaporator tank 1 and working steam persists groove 3, Pu
Micro- waterproof ventilated membrane 2 rapidly filters steam, only allows steam to persist groove 3 into working steam, and hydraulic fluid and is not through Pu
Micro- waterproof ventilated membrane 2, to ensure that liquid phase and steam exist only in design position.
Working steam persists the top venthole of groove 3 and gas is fled from the bottom air intake of passage 8 and is connected.Gas is fled from logical
The resistance wire of swiped through insulated paint is provided with the inwall of road 8, resistance wire is used to generate heat when working and being powered, to ensure that its interior temperature is permanent
It is fixed, prevent steam from shifting to an earlier date condensation liquefaction.Gas is fled from the outer wall of passage 8 and is arranged with heat-insulation layer.
Cold work cold end includes steam cooling cylinder 7, and collection is fled from the venthole of passage 8 by gas and sent by steam cooling cylinder 7
Hydraulic fluid steam and condensed, generate liquid after, under gravity pass through the liquid outlet of connecting pipe 6 flow into gas-liquid
Capsule 5 is separated, the type of cooling of steam cooling cylinder 7 is that the extraneous low temperature cold source that provides carries out heat transfer, or carries out free convection
Or forced convertion, or the mixing to extraneous radiations heat energy, or three of the above.
The top venthole that bottom air intake and the gas of steam cooling cylinder 7 flee from passage 8 is connected, and steam cooling cylinder 7 will
The steam that the entrance of passage 8 is fled from by gas condenses.The minimum side of the gravitional force of steam cooling cylinder 7 also passes through connecting pipe 6
It is connected with gas-liquid separation capsule 5, gas-liquid separation capsule 5 is used to separate liquid phase hydraulic fluid and has not enough time to the steam of condensation.Gas-liquid
Separation capsule 5 top is provided with open top, is open at work (containing when work) and closes, is opened when not working and (checking, maintenance),
Closure of openings is to ensure that internal working fluid does not leak outside and the steam in it will not overflow, and opening is freely cold and hot in order to check
Gravity micro heat pipe internal liquid content is held, if liquid level is too low in gas-liquid separation capsule 5, hydraulic fluid evaporator tank 1 or does not have,
Supplemented.
Because the top inlet of liquid supplement runner 4 is stretched into gas-liquid separation capsule 5, therefore, it stretches into the gentle liquid in part
The separation inwall of capsule 5 forms certain page receiving space, and its interior liquid level is kept certain height, and height exists less than connecting pipe 6
Minimum point in gas-liquid separation capsule 5, both ensured that condensed liquid smoothly can enter gas-liquid separation capsule 5 by the liquid outlet of connecting pipe 6,
And can ensures the inlet for only having liquid to enter liquid supplement runner 4.
The bottom liquid outlet of gas-liquid separation capsule 5 is connected with the top inlet of liquid supplement runner 4, liquid supplement runner 4
Stretched into inside gas-liquid separation capsule 5 with connecting pipe 6, and the gravitional force on the top of liquid supplement runner 4 is less than connecting pipe 6
The gravitional force of bottom.The bottom of liquid supplement runner 4 is through steam persists groove 3, Pu Wei waterproof ventilated membranes 2 are connected to working solution
Evacuator body groove 1.Liquid supplements runner 4 with the contact jaw gravitional force of gas-liquid separation capsule 5 higher than the contact with hydraulic fluid evaporator tank 1
End, liquid supplement liquid in runner 4 and added to by Action of Gravity Field in hydraulic fluid evaporator tank 1.Liquid supplement runner 4 passes through work
Groove 3 and Pu Wei waterproof ventilated membranes 2 are persisted as steam, and liquid supplement runner 4 persists groove 3 and Pu Wei waterproof and breathables with working steam
The junction good seal of film 2.Adhesive means are used between each part.Other good airproof performances can be used in other special occasions
Connected mode.
Present invention incorporates conventional heat pipe to bear heat big and the characteristics of low-grade fever pipe size is small, hydraulic fluid evaporation in ability
The bottom surface of groove 1 is 20mm × 20mm square, is highly 3mm, wall thickness 1mm, using water as hydraulic fluid, i.e., can bear
1.5kw heat load, while ensure that the relative position of hot and cold side has very big adjusting range, solve most heat production
Greatly, the heat dissipation problem of the small component of dimensional space.
The present invention the course of work be：
When heater element works and produces liquid in heat hydraulic fluid evaporator tank 1, as shown in Fig. 2 working solution
Body is produced steam by thermal evaporation；Steam enters working steam by Pu Wei waterproof ventilated membranes 2 and persists groove 3 and in the work of thermal diffusion
With it is lower flee from passage 8 by gas and reach steam cooling cylinder 7 and carry out condensation be changed into liquid phase；As shown in figure 3, in steam cooling cylinder
The liquid that generation is condensed in 7 enters gas-liquid separation capsule 5 by connecting pipe 6, and is accumulated in its underpart；In gas-liquid separation capsule 5
Liquid continues on for taking away heating because the liquid supplement runner 4 that acts through of gravity gradually adds to hydraulic fluid evaporator tank 1
Heat caused by element.
The invention also discloses a kind of method of work of cold and hot section of gravity micro heat pipe, is specially：By hydraulic fluid evaporator tank 1
It is in close contact with heater element, heating element generating heat makes the hydraulic fluid in hydraulic fluid evaporator tank 1 gasify, and generates steam；
Passage 8 is fled from by gas to carry out vapor transmission to steam cooling cylinder 7, steam in the steam cooling cylinder 7
Liquefaction, form hydraulic fluid；
Hydraulic fluid is discharged into gas-liquid separation capsule 5 by connecting pipe 6, when the hydraulic fluid liquid level in gas-liquid separation capsule 5
When supplementing the top inlet of runner 4 more than liquid, hydraulic fluid passes sequentially through inlet, the liquid outlet of liquid supplement runner 4
It is discharged into hydraulic fluid evaporator tank 1；
The above course of work is repeated until completing the cooling of heater element.
Claims (9)
1. a kind of free hot and cold side gravity micro heat pipe, it is characterised in that including the work hot junction for evaporation endothermic and for cold
The work cold end of solidifying heat release, passage (8) is fled from by gas respectively between the evaporator section and the condensation segment and liquid supplements
Runner (4) connects；
The work hot junction includes hydraulic fluid evaporator tank (1), and Pu is disposed with the top of the hydraulic fluid evaporator tank (1)
Micro- waterproof ventilated membrane (2) and working steam persist groove (3), and the working steam persists the top venthole of groove (3) and the gas
The bottom air intake that body flees from passage (8) is connected；
The work cold end includes steam cooling cylinder (7), and the bottom air intake of the steam cooling cylinder (7) is fled from the gas
The top venthole of passage (8) is connected, and the steam cooling cylinder (7) is also connected by connecting pipe (6) with gas-liquid separation capsule (5)
Connect, the bottom liquid outlet of the gas-liquid separation capsule (5) is connected with the top inlet of liquid supplement runner (4), the liquid
The bottom liquid outlet of body supplement runner (4) is through the steam persists groove (3), Pu Wei waterproof ventilated membranes (2) are connected to the work
Make liquid evaporation groove (1).
2. free hot and cold side gravity micro heat pipe as claimed in claim 1, it is characterised in that the gas flee from passage (8) and
The liquid supplement runner (4) is made by flexible heat-insulating material.
3. free hot and cold side gravity micro heat pipe as claimed in claim 1 or 2, it is characterised in that the gravity of the work cold end
Potential energy is more than the gravitional force in the work hot junction.
4. free hot and cold side gravity micro heat pipe as claimed in claim 3, it is characterised in that the gas is fled from passage (8)
Resistance wire is provided with wall, the resistance wire is used to generate heat when working and being powered, will not liquefied with the steam ensured in it.
5. free hot and cold side gravity micro heat pipe as claimed in claim 1 or 2, it is characterised in that the gas flees from passage (8)
Heat-insulation layer is arranged with outer wall.
6. free hot and cold side gravity micro heat pipe as claimed in claim 1 or 2, it is characterised in that the liquid supplement runner (4)
Gas-liquid separation capsule (5) inside, and the weight on the top of liquid supplement runner (4) are stretched into the connecting pipe (6)
Power potential energy is less than the gravitional force of the connecting pipe (6) bottom.
7. free hot and cold side gravity micro heat pipe as claimed in claim 3, it is characterised in that gas-liquid separation capsule (5) top
Provided with open top.
8. free hot and cold side gravity micro heat pipe as claimed in claim 1, it is characterised in that glue is used between each part
Viscous mode.
9. a kind of method of work of the cold and hot section of gravity micro heat pipe as described in claim 1-8 is any, it is characterised in that by working solution
Evacuator body groove (1) is in close contact with heater element, and heating element generating heat makes the hydraulic fluid in the hydraulic fluid evaporator tank (1)
Gasification, generate steam；
Passage (8) is fled from by the vapor transmission to steam cooling cylinder (7) by gas, steam is in the steam cooling cylinder (7)
Inside liquefied, form hydraulic fluid；
The hydraulic fluid is discharged into gas-liquid separation capsule (5) by connecting pipe (6), the work in the gas-liquid separation capsule (5)
Make liquid levels more than liquid supplement runner (4) top inlet when, the hydraulic fluid pass sequentially through liquid supplement runner
(4) inlet, liquid outlet is discharged into the hydraulic fluid evaporator tank (1)；
The above course of work is repeated until completing the cooling of heater element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711115531.5A CN107894179A (en) | 2017-11-13 | 2017-11-13 | Free hot and cold side gravity micro heat pipe and its method of work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711115531.5A CN107894179A (en) | 2017-11-13 | 2017-11-13 | Free hot and cold side gravity micro heat pipe and its method of work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107894179A true CN107894179A (en) | 2018-04-10 |
Family
ID=61804981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711115531.5A Pending CN107894179A (en) | 2017-11-13 | 2017-11-13 | Free hot and cold side gravity micro heat pipe and its method of work |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110191621A (en) * | 2019-06-13 | 2019-08-30 | 深圳市锐尔觅移动通信有限公司 | A kind of printed circuit board with radiator structure is stacked component and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3986550A (en) * | 1973-10-11 | 1976-10-19 | Mitsubishi Denki Kabushiki Kaisha | Heat transferring apparatus |
| CN103096689A (en) * | 2011-11-08 | 2013-05-08 | 财团法人工业技术研究院 | Heat dissipation device and heat dissipation system |
| CN103335549A (en) * | 2013-07-11 | 2013-10-02 | 华北电力大学 | Phase separation micro-channel condenser |
| CN105180693A (en) * | 2015-09-30 | 2015-12-23 | 华南理工大学 | Heat pipe and circulation method for working liquid in heat pipe |
-
2017
- 2017-11-13 CN CN201711115531.5A patent/CN107894179A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3986550A (en) * | 1973-10-11 | 1976-10-19 | Mitsubishi Denki Kabushiki Kaisha | Heat transferring apparatus |
| CN103096689A (en) * | 2011-11-08 | 2013-05-08 | 财团法人工业技术研究院 | Heat dissipation device and heat dissipation system |
| CN103335549A (en) * | 2013-07-11 | 2013-10-02 | 华北电力大学 | Phase separation micro-channel condenser |
| CN105180693A (en) * | 2015-09-30 | 2015-12-23 | 华南理工大学 | Heat pipe and circulation method for working liquid in heat pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110191621A (en) * | 2019-06-13 | 2019-08-30 | 深圳市锐尔觅移动通信有限公司 | A kind of printed circuit board with radiator structure is stacked component and electronic equipment |
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Application publication date: 20180410 |