CN110108140A - Flat-plate evaporators loop heat pipe - Google Patents
Flat-plate evaporators loop heat pipe Download PDFInfo
- Publication number
- CN110108140A CN110108140A CN201910496001.2A CN201910496001A CN110108140A CN 110108140 A CN110108140 A CN 110108140A CN 201910496001 A CN201910496001 A CN 201910496001A CN 110108140 A CN110108140 A CN 110108140A
- Authority
- CN
- China
- Prior art keywords
- evaporator
- liquid
- flat
- evaporation tube
- tube road
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000007788 liquid Substances 0.000 claims abstract description 79
- 239000007789 gas Substances 0.000 claims abstract description 72
- 238000001704 evaporation Methods 0.000 claims description 64
- 230000008020 evaporation Effects 0.000 claims description 63
- 230000008676 import Effects 0.000 claims description 17
- 239000006260 foam Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 239000002657 fibrous material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 7
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000002887 superconductor Substances 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F28D15/04—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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to cryogenic heat transfer equipment technical fields, a kind of flat-plate evaporators loop heat pipe is provided, it include: the loop formed by condenser, the first liquid line, first gas pipeline, second liquid pipeline, second liquid pipeline and flat-plate evaporators, condenser includes the first condenser pipe and the second condenser pipe, flat-plate evaporators include the first evaporator and the second evaporator, first evaporator is built-in with liquid-sucking core, and liquid-sucking core is for separating the liquids and gases inside the first evaporator.Flat-plate evaporators loop heat pipe provided in an embodiment of the present invention, first evaporator and the second evaporator are set on flat-plate evaporators, liquid-sucking core is equipped in first evaporator, the first evaporator and the second evaporator are flowed to respectively using the liquid in the capillarity driving condenser of liquid-sucking core, the disengagement area of liquid is increased by the way that one or more second evaporators are arranged, make flat-plate evaporators that there is very big heat transfer plane, is conducive to the temperature uniformity for improving the cooled device of big plane.
Description
Technical field
The present invention relates to cryogenic heat transfer equipment technical fields, more particularly, to a kind of flat-plate evaporators loop heat pipe.
Background technique
With the rapid development in the fields such as aerospace, superconductor technology and low-temperature electronics, the heat dissipation for the device that is cooled
Amount gradually increases, and cooled planar dimension also shows the trend being gradually increased, and the requirement to low-temperature cooling system is more next
It is higher, not only to consider isolation vibration and electromagnetic interference, cooling capacity high efficiency of transmission, system flexible topology, it is cold also to meet big plane
But, the requirement such as temperature uniformity.
Cryo Refrigerator is generallyd use as low temperature cold source, cooling down is implemented to cooled device, due to Cryo Refrigerator
Cold head area it is smaller, when being cooled down to the device with larger size heat-delivery surface, using the coupling side directly contacted
Formula not only be easy to cause electromagnetism or vibration interference etc., is also easy to cause cooled device temperature uneven, it is therefore desirable to by soft
Property be thermally connected mode be of coupled connections.
Loop heat pipe is a kind of efficient heat-transfer equipment, can be realized efficient heat transfer, electromagnetism and vibration isolation, convenient for system
Flexible arrangement etc..The flat-plate evaporators loop heat pipe of room temperature warm area is using water, acetone, methanol etc. as working media, loop heat pipe
Internal pressure is to be slightly above atmospheric pressure or negative pressure, therefore can be designed to the flat-plate evaporators knot with very big thermo-contact plane
Structure, for the cooled device heat dissipation of big plane.
But and heat transfer requirement cooling for the big plane under low temperature environment, the evaporator of existing cryogenic loop heat pipe are logical
It is often elongated cylindrical-shaped structure, being cooled with big plane, device contacts area is small, and inhomogeneous cooling is even.
Summary of the invention
(1) technical problems to be solved
The embodiment of the present invention provides a kind of flat-plate evaporators loop heat pipe, to solve existing cryogenic loop heat pipe to big flat
The problem of the cooled device cooling uniformity difference in face.
(2) technical solution
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides a kind of flat-plate evaporators loop heat pipe, including condensation
Device, liquid line, gas piping and flat-plate evaporators, the flat-plate evaporators and condenser pass through the gas piping and liquid
Pipeline forms loop, and the liquid line includes the first liquid line and second liquid pipeline, and the gas piping includes
First gas pipeline and second gas pipeline；
The condenser includes the first condenser pipe and the second condenser pipe, and the flat-plate evaporators include plate body and set
It sets in intracorporal first evaporator of the plate and the second evaporator；
Be equipped with liquid-sucking core in first evaporator, the liquid-sucking core be used for by inside first evaporator liquid and
Gas partitions are opened, and the outlet of first condenser pipe passes through the input end of first liquid line and first evaporator
It is connected, the outlet end of first evaporator is connected by the first gas pipeline with the import of second condenser pipe；
Second evaporator includes the first evaporation tube road and the second evaporation tube road, and the outlet of second condenser pipe is logical
It crosses the second liquid pipeline to be connected with the import of first evaporation tube road, the outlet of the first evaporation tube road and the second evaporation tube
The import on road is connected, the outlet of second evaporation tube road by the second gas pipeline and first condenser pipe into
Mouth is connected.
Preferably, first evaporator includes tubular housing, and the tubular housing opens up to be formed in the plate body, institute
The outer surface for stating liquid-sucking core is bonded with the inner surface of the tubular housing, the outer surface of the liquid-sucking core or the tubular housing
Inner surface is provided with gas conduit, and the gas conduit is parallel with the axis of the tubular housing；
The liquid-sucking core is the closed tubular structure of the other end open at one end, and the open end of the liquid-sucking core is towards described the
One liquid line, first liquid line pass through one end of the tubular housing and connect with the open end of the liquid-sucking core,
The other end of the tubular housing and the first gas pipeline connection, the closed end of the liquid-sucking core is towards the first gas
Pipeline.
Preferably, capillary structure is provided in first liquid line, one end of the capillary structure protrudes into described
Inside one condenser pipe, the other end of the capillary structure stretch to inside the tubular housing and with the wick contacts.
Preferably, the capillary structure is hollow cylinder-like structure.
Preferably, the capillary structure is made of wire mesh, foam metal, sintering powder or fibrous material.
Preferably, first evaporation tube road and the second evaporation tube road are the circular channel opened up in the plate body, and institute
State the first evaporation tube road and the second evaporation tube road be arranged in parallel with the tubular housing, the outlet of first evaporation tube road with
The import of second evaporation tube road is connected by bend pipe；
The inner wall of first evaporation tube road is equipped with the first conduit, the axis of first conduit and first evaporation tube road
Line is parallel；The inner wall of second evaporation tube road is equipped with the second conduit, the axis of second conduit and second evaporation tube road
Line is parallel.
Preferably, flat-plate evaporators loop heat pipe further includes air reservoir, and the air reservoir passes through bypass line and first gas
Body piping connection.
Preferably, the flat-plate evaporators include multiple second evaporators, the quantity of the condenser pipe in the condenser
Corresponding with the total quantity of first evaporator and the second evaporator, the flat-plate evaporators and condenser are corresponding by increasing
The gas piping and liquid line form loop.
Preferably, the structure of first evaporation tube road is identical as the structure of first evaporator, second evaporation
Pipeline is gas delivery passage.
Preferably, the plate body is the plate structure of local crowning, and the local crowning is located at first evaporator
Outside, the diameter of section of first evaporator are greater than the diameter of section of second evaporator.
(3) beneficial effect
The first evaporator and is arranged in flat-plate evaporators loop heat pipe provided in an embodiment of the present invention on flat-plate evaporators
Two evaporators, the first evaporator is interior to be equipped with liquid-sucking core, is flowed respectively using the liquid in the capillarity driving condenser of liquid-sucking core
To the first evaporator and the second evaporator, the disengagement area of liquid is increased by the way that one or more second evaporators are arranged, is made
Flat-plate evaporators have very big heat transfer plane, are conducive to the temperature uniformity for improving the cooled device of big plane.
In addition, the first evaporator and the second evaporator are circular configuration, there is very strong high-voltage resistance capability；By
Capillary structure is set in one liquid line, so that the liquid in condenser is flowed down in capillary power drive to the first evaporator, avoids
Gravity auxiliary and secondary evaporator are relied on, additional energy is eliminated.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of flat-plate evaporators loop heat pipe in one embodiment of the invention；
Fig. 2 is the structural schematic diagram of the first evaporator cross section shown in Fig. 1；
Fig. 3 is the sectional view of plate body structure A-A of flat-plate evaporators shown in Fig. 1 a kind of；
Fig. 4 is another plate body structure A-A sectional view of flat-plate evaporators shown in Fig. 1；
Fig. 5 is the sectional view of another plate body structure A-A of flat-plate evaporators shown in Fig. 1；
In figure: 1, flat-plate evaporators；2, condenser；3, connecting line；4, air reservoir；11, plate body；12, the first evaporator；
13, the second evaporator；21, the first condenser pipe；22, the second condenser pipe；31, the first liquid line；32, first gas pipe
Road；33, second liquid pipeline；34, second gas pipeline；41, bypass line；111, tubular housing；121, liquid-sucking core；122, gas
Body conduit；123, capillary structure；124, cavity structure；131, the first evaporation tube road；132, the second evaporation tube road；133, bend pipe；
134, the first conduit；135, the second conduit.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the description of the embodiment of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
As depicted in figs. 1 and 2, the embodiment of the present invention provides a kind of flat-plate evaporators loop heat pipe, comprising: flat-plate evaporators
1, condenser 2 and the connecting line 3 for connecting flat-plate evaporators 1 and condenser 2, connecting line 3 include gas piping and
Liquid line, flat-plate evaporators 1 and condenser 2 form loop by gas piping and liquid line.
Specifically, flat-plate evaporators 1 include plate body 11 and the first evaporator 12 and at least one being arranged in inside plate body 11
A second evaporator 13, plate body 11 for load evaporator and heat transfer when with cooled device contacts.Wherein, in the present embodiment
It is illustrated by taking first evaporator 12 and second evaporator 13 as an example, in order to realize the connection to two evaporators,
Liquid line in the present embodiment specifically includes the first liquid line 31 and second liquid pipeline 33, and gas piping specifically includes
One gas piping 32 and second gas pipeline 34.
Be provided with liquid-sucking core 121 in first evaporator 12, liquid-sucking core 121 be used for by the first evaporator 12 inside liquid with
Gas partitions are opened.Drive liquid working substance and gas working medium along fixed direction recycle stream by the capillarity of liquid-sucking core 121
It is dynamic.The input end of first evaporator 12 is connected with the outlet of the first liquid line 31, the outlet end of the first evaporator 12 and the first gas
32 import of body pipeline is connected.
Second evaporator 13 include the first evaporation tube road 131 and the second evaporation tube road 132, the first evaporation tube road 131 into
Mouth is connected with the outlet of second liquid pipeline 33, and the outlet of the first evaporation tube road 131 is connected with the import of the second evaporation tube road 132,
The outlet of second evaporation tube road 132 is connected with 34 import of second gas pipeline.
Condenser 2 includes the first condenser pipe 21 and the second condenser pipe 22, the outlet and first of the first condenser pipe 21
The import of liquid line 31 is connected, and the import of the first condenser pipe 21 is connected with the outlet of second gas pipeline 34, the second condensation
The outlet of pipeline 22 is connected with the import of second liquid pipeline 33, import and the first gas pipeline 32 of the second condenser pipe 22
Outlet is connected.
First evaporator 12, first gas pipeline 32, the second condenser pipe 22, second liquid pipeline 33, the first evaporation tube
Road 131, the second evaporation tube road 132, second gas pipeline 34, the first condenser pipe 21, the first liquid line 31, the first evaporator
12 are successively sequentially connected with from beginning to end, form loop.
The first evaporator 12 is arranged in flat-plate evaporators loop heat pipe provided in an embodiment of the present invention on flat-plate evaporators 1
With the second evaporator 13, the first evaporator 12 is interior equipped with liquid-sucking core 121, and the capillarity of liquid-sucking core 121 is utilized to drive condenser 2
In liquid flow to the first evaporator 12 and the second evaporator 13 respectively, pass through and one or more second evaporators 13 are set increase
The disengagement area of liquid makes flat-plate evaporators 1 have very big heat transfer plane, is conducive to improve big plane and is cooled device
Temperature uniformity.
On the basis of the above embodiments, the first evaporator 12 includes tubular housing 111, and tubular housing 111 is directly to exist
The inside of plate body 11 opens up the loading space to be formed, and liquid-sucking core 121 is installed in inside tubular housing 111, is convenient for tubular housing
Liquids and gases in 111 separate.
Gas for the ease of generating the evaporation of liquid-sucking core 121 is discharged while improving heat exchange efficiency, by liquid-sucking core 121 and pipe
Shape cavity 111 is coaxially disposed, and the outer surface of liquid-sucking core 121 and the inner surface of tubular housing 111 fit closely.Meanwhile in pipe
The inner surface of shape cavity 111 opens up gas conduit 122, and gas conduit 122 is parallel with the axis direction of tubular housing 111, gas
The notch of conduit 122 is bonded with the lateral wall of liquid-sucking core 121, convenient for boil-off gas along gas conduit while facilitating heat transfer
122 are collected to tubular housing 111, are discharged finally by first gas pipeline 32.
Certainly, gas conduit 122 can also be formed in inward-facing open up of appearance of liquid-sucking core 121, gas conduit 122 and suction
The axis direction of wick-containing 121 is parallel.It should be noted that multiple, multiple 122 edges of gas conduit can be set in gas conduit 122
Being arranged circumferentially for liquid-sucking core 121, to improve heat exchange uniformity, and be more advantageous to boil-off gas discharge.
Wherein, liquid-sucking core 121 is open at one end, the closed cylinder-like structure of the other end, and liquid-sucking core 121 is equipped with the one of opening
End is open end, and the closed one end of liquid-sucking core 121 is closed end.Open end the first liquid line 31 of direction of liquid-sucking core 121, the
One liquid line 31 is opened after passing through one end (i.e. the input end of the first evaporator 12) of tubular housing 111 with liquid-sucking core 121
The connection of mouth end.
And the other end (i.e. the outlet end of the first evaporator 12) of tubular housing 111 is connected to first gas pipeline 32, is inhaled
The closed end of wick-containing 121 is inside tubular housing 111 towards first gas pipeline 32.It is driven by the capillarity of liquid-sucking core 121
Matter of starting building is circulated along fixed direction.Liquid-sucking core 121 can be by silk screen, foam metal, sintering powder or undulation degree
Porous structure made of expecting.
On the basis of the above embodiments, capillary structure 123, capillary structure are disposed in the inside of the first liquid line 31
123 is coaxially arranged along the axial direction of the first liquid line 31, and capillary structure 123 is hollow cylinder-like structure, internal for sky
Cavity configuration 124, cavity structure 124 advantageously reduce the flow resistance of liquid.Wherein, capillary structure 123 can be by wire mesh, bubble
Foam metal, sintering powder or fibrous material are made.
One end of capillary structure 123 extends to inside the condenser pipe of condenser 2, and the other end of capillary structure 123 protrudes into
One evaporator 12 (tubular housing 111) is internal, and is in close contact with the inner sidewall of liquid-sucking core 121.Pass through capillary structure 123
Capillarity transmits the liquid in condenser 2 to flat-plate evaporators 1, avoids relying on gravity, does not heat energy consumption additionally,
Flat-plate evaporators 1 can be made smoothly to cool down, realize starting.
On the basis of the various embodiments described above, flat-plate evaporators loop heat pipe further includes air reservoir 4, and air reservoir 4 passes through bypass pipe
Road 41 is connect with first gas pipeline 32.It prevents loop heat pipe internal pressure excessively high by air reservoir 4, while guaranteeing that loop heat pipe exists
Possess sufficient liquid working substance under low temperature environment.
On the basis of the various embodiments described above, as shown in figure 3, the first evaporation tube road 131 and the second evaporation tube road 132 are straight
The smooth circular channel that formation is processed on plate body 11 is connect, this structure is simple, and it is easy to process, it is able to bear very high pressure
Power, while being conducive to the plate structure that flat-plate evaporators 1 are made into thinner thickness.In addition, can be by the first evaporation tube road 131 and
Two evaporation tube roads 132 are set as identical size and structure, are easily installed and design corresponding linking pipeline.Wherein, first steams
Hair pipeline 131 and the second evaporation tube road 132 are arranged in parallel with tubular housing 111, the outlet and second of the first evaporation tube road 131
The import of evaporation tube road 132 is connected by bend pipe 133.
On the basis of the various embodiments described above, as shown in figure 4, plate body 11 is the plate structure of local crowning, local crowning
Positioned at the external position of the first evaporator 12, the second evaporator 13 is arranged in relatively thin position.First evaporator, 12 diameter of section is big
In 13 diameter of section of the second evaporator, is conducive to the disengagement area for increasing the first evaporator 12, reduces flow resistance, be convenient for first
Evaporator 12 assembles, although local size is larger, can make that 1 integral thickness of flat-plate evaporators is smaller, quality is lighter.
On the basis of the various embodiments described above, as shown in figure 5, being provided with the first slot on the inner wall of the first evaporation tube road 131
Road 134, the first conduit 134 are parallel with the axis of the first evaporation tube road.Similarly, it is arranged on the inner wall of the second evaporation tube road 132
There is the second conduit 135, the second conduit 135 is parallel with the axis of the second evaporation tube road 132, passes through the first conduit 134 and the second slot
Road 135 is capable of increasing the evaporating surface of the second evaporator, improves heat exchange efficiency, while can also provide certain capillary force, right
The liquid-sucking core 121 of first evaporator 12 plays booster action.
When flat-plate evaporators loop heat pipe, which needs, has bigger thermal coupling surface, multiple and the second steaming can also be set
The identical evaporator of 13 structure of device is sent out, it can be by third evaporator, the 4th evaporator until N evaporator (not shown).
By adding multiple structures identical with the second evaporator 13, while adding the condenser pipe, gas piping and liquid being attached thereto
Body pipeline makes the flat-plate evaporators 1 and condenser 2 by increasing the corresponding gas piping and liquid line composition closing
Circuit, to increase the thermal coupling area of flat-plate evaporators 1, the temperature for further increasing the cooled device cooling of big plane is uniform
Property.
In addition, the first evaporation tube road 131 of the second evaporator 13 can also be steamed using with first in the various embodiments described above
The identical structure of device 12 is sent out, so that the second evaporation tube road 132 be made to become gas delivery passage.Be equivalent to it is multiple (be herein two,
Can additionally increase) 12 concatenated form of the first evaporator, for increasing the REFRIGERATION SYSTEM DRIVEN BY CAPILLARY FORCE power that working medium circulation flows in circuit, just
Larger in heat transfer distances, cooled device plane carries out the transmission of gas-liquid two-phase working medium when very big.
Below to by be applied to low temperature environment under flat-plate evaporators loop heat pipe for, it is worked to the embodiment of the present invention
Journey is illustrated:
In cryogenic vacuum system, the flat-plate evaporators 1 of flat-plate evaporators loop heat pipe and the cooled device phase of big plane
Even, condenser 2 is connected with the cold head of Cryo Refrigerator, start to cool down when Cryo Refrigerator unlatching is later, drives and is attached thereto
The temperature of condenser 2 declines therewith.After condenser 2 drops to operation temperature area, condensation is generated in condenser pipe (21 and 22)
Liquid after liquid is contacted with capillary structure 123, is flowed in capillary power drive lower edge capillary structure 123 to the first liquid line 31
It is dynamic, cool down in flow process to pipe in line, liquid finally flows into the first evaporator 12, the first evaporator 12 is made to drop to work
Warm area.
In entire temperature-fall period, loop internal pressure is gradually decreased, and the gas in air reservoir is constantly supplemented into circuit, liquid
Amount gradually increases.After first evaporator 12 completes temperature-fall period, apply thermic load, the first evaporator 12 on cooled device
121 surface of liquid-sucking core liquid evaporation, generate gas to first gas pipeline 32 flow, flow back to the second condenser pipe 22 again
It is condensed into liquid.Liquid flows to the first evaporation tube road 131 and the second evaporation of the second evaporator 13 along second liquid pipeline 33
In pipeline 132, then by thermal evaporation, the gas of generation flows back to condenser 2 along second gas pipeline 34 again, in the first condensation
It is re-condensed into liquid in pipeline 21, is flowed in the first evaporator then along the first liquid line 31, a recycle stream is completed
Dynamic process.During the flowing of gas-liquid two-phase working medium circulation, occurred by liquid in the first evaporator 12, the second evaporator 13
Evaporative phase-change constantly transmits the heat of cooled device to condenser 2, and has Cryo Refrigerator to take away and dissipation.
The steaming of the first evaporator 12, second is arranged in flat-plate evaporators loop heat pipe proposed by the present invention on flat-plate evaporators 1
Device 13 is sent out, is equipped with liquid-sucking core 121 in the first evaporator 12, utilizes the liquid in the capillarity driving condenser 2 of liquid-sucking core 121
The first evaporator 12 and the second evaporator 13 are flowed to respectively, increase liquid by the way that one or more second evaporators 13 are arranged
Disengagement area makes flat-plate evaporators 1 have very big heat transfer plane, and the temperature for being conducive to improve the cooled device of big plane is uniform
Property；First evaporator 12, the second evaporator 13 are circular configuration, have very strong high-voltage resistance capability；By in the first liquid
Capillary structure 123 is set in pipeline 31, so that the liquid in condenser 2 is flowed down in capillary power drive to the first evaporator 12, avoids
Dependence gravity auxiliary and secondary evaporator, eliminate additional energy.
It should be noted that, although the embodiment of the present invention is introduced with the loop heat pipe being applied under low temperature environment, but
It is equally applicable to the very high flat-plate evaporators loop heat pipe of internal pressure under normal temperature environment, such as using ammonia as the circuit of working medium
Heat pipe, all should be within the invention patent protection scope.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of flat-plate evaporators loop heat pipe, including condenser, liquid line, gas piping and flat-plate evaporators, described flat
Plate evaporator and condenser pass through the gas piping and liquid line composition loop, which is characterized in that the liquid line
Road includes the first liquid line and second liquid pipeline, and the gas piping includes first gas pipeline and second gas pipeline；
The condenser includes the first condenser pipe and the second condenser pipe, and the flat-plate evaporators include that plate body and setting exist
Intracorporal first evaporator of the plate and the second evaporator；
Liquid-sucking core is equipped in first evaporator, the liquid-sucking core is used for the liquids and gases inside first evaporator
It separates, the input end phase that the outlet of first condenser pipe passes through first liquid line and first evaporator
Even, the outlet end of first evaporator is connected by the first gas pipeline with the import of second condenser pipe；
Second evaporator includes the first evaporation tube road and the second evaporation tube road, and the outlet of second condenser pipe passes through institute
It states second liquid pipeline to be connected with the import of first evaporation tube road, outlet and the second evaporation tube road of the first evaporation tube road
Import is connected, the import phase that the outlet of second evaporation tube road passes through the second gas pipeline and first condenser pipe
Even.
2. flat-plate evaporators loop heat pipe according to claim 1, which is characterized in that first evaporator includes tubulose
Cavity, the tubular housing open up to be formed in the plate body, the interior table of the outer surface of the liquid-sucking core and the tubular housing
Face paste is closed, and the inner surface of the outer surface of the liquid-sucking core or the tubular housing is provided with gas conduit, the gas conduit with
The axis of the tubular housing is parallel；
The liquid-sucking core is the closed cylinder-like structure of the other end open at one end, and the open end of the liquid-sucking core is towards described first
Liquid line, first liquid line pass through one end of the tubular housing and connect with the open end of the liquid-sucking core, institute
State the other end and the first gas pipeline connection of tubular housing, the closed end of the liquid-sucking core is towards the first gas pipe
Road.
3. flat-plate evaporators loop heat pipe according to claim 2, which is characterized in that setting in first liquid line
There is capillary structure, one end of the capillary structure is protruded into inside first condenser pipe, and the other end of the capillary structure is stretched
Enter to inside the tubular housing and with the wick contacts.
4. flat-plate evaporators loop heat pipe according to claim 3, which is characterized in that the capillary structure is hollow circle
Tubular structure, the capillary structure are made of wire mesh, foam metal, sintering powder or fibrous material.
5. according to the flat-plate evaporators loop heat pipe any in claim 2 to 4, which is characterized in that first evaporation
Pipeline and the second evaporation tube road are the circular channel opened up in the plate body, and first evaporation tube road and the second evaporation tube road
It is arranged in parallel with the tubular housing, the outlet of first evaporation tube road passes through curved with the import of second evaporation tube road
Pipe is connected.
6. flat-plate evaporators loop heat pipe according to claim 5, which is characterized in that the inner wall of first evaporation tube road
Equipped with the first conduit, first conduit is parallel with the axis of first evaporation tube road；The inner wall of second evaporation tube road
Equipped with the second conduit, second conduit is parallel with the axis of second evaporation tube road.
7. according to claim 1 to any flat-plate evaporators loop heat pipe in 4, which is characterized in that flat-plate evaporators return
Road heat pipe further includes air reservoir, and the air reservoir passes through bypass line and the first gas piping connection.
8. flat-plate evaporators loop heat pipe according to claim 1, which is characterized in that the flat-plate evaporators include multiple
Second evaporator, the quantity of the condenser pipe in the condenser and the total quantity pair of first evaporator and the second evaporator
It answers, the flat-plate evaporators and condenser are by increasing the corresponding gas piping and liquid line composition loop.
9. flat-plate evaporators loop heat pipe according to claim 5, which is characterized in that the structure of first evaporation tube road
Identical as the structure of first evaporator, second evaporation tube road is gas delivery passage.
10. flat-plate evaporators loop heat pipe according to claim 5, which is characterized in that the plate body is local crowning
Plate structure, the local crowning are located at the outside of first evaporator, and the diameter of section of first evaporator is greater than institute
State the diameter of section of the second evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910496001.2A CN110108140B (en) | 2019-06-10 | 2019-06-10 | Loop heat pipe of flat evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910496001.2A CN110108140B (en) | 2019-06-10 | 2019-06-10 | Loop heat pipe of flat evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110108140A true CN110108140A (en) | 2019-08-09 |
| CN110108140B CN110108140B (en) | 2024-07-23 |
Family
ID=67494294
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910496001.2A Active CN110108140B (en) | 2019-06-10 | 2019-06-10 | Loop heat pipe of flat evaporator |
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| Country | Link |
|---|---|
| CN (1) | CN110108140B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857112A (en) * | 2021-01-29 | 2021-05-28 | 昆明理工大学 | Fiber capillary copper foam composite liquid absorption core flat micro heat pipe and preparation method thereof |
| WO2022068515A1 (en) * | 2020-09-29 | 2022-04-07 | 苏州领焓能源科技有限公司 | Heat pipe system |
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| US6269865B1 (en) * | 1997-08-22 | 2001-08-07 | Bin-Juine Huang | Network-type heat pipe device |
| EP1498679A2 (en) * | 2003-07-14 | 2005-01-19 | Swales & Associates, Inc. | Thermal management system |
| CN108253830A (en) * | 2018-01-30 | 2018-07-06 | 中国科学院理化技术研究所 | Loop heat pipe with auxiliary infusion pipeline |
| CN108286911A (en) * | 2018-01-30 | 2018-07-17 | 中国科学院理化技术研究所 | Low-temperature loop heat pipe |
| CN210292941U (en) * | 2019-06-10 | 2020-04-10 | 中国科学院理化技术研究所 | Loop heat pipe of flat-plate evaporator |
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| US4921041A (en) * | 1987-06-23 | 1990-05-01 | Actronics Kabushiki Kaisha | Structure of a heat pipe |
| US6269865B1 (en) * | 1997-08-22 | 2001-08-07 | Bin-Juine Huang | Network-type heat pipe device |
| EP1498679A2 (en) * | 2003-07-14 | 2005-01-19 | Swales & Associates, Inc. | Thermal management system |
| CN108253830A (en) * | 2018-01-30 | 2018-07-06 | 中国科学院理化技术研究所 | Loop heat pipe with auxiliary infusion pipeline |
| CN108286911A (en) * | 2018-01-30 | 2018-07-17 | 中国科学院理化技术研究所 | Low-temperature loop heat pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022068515A1 (en) * | 2020-09-29 | 2022-04-07 | 苏州领焓能源科技有限公司 | Heat pipe system |
| CN112857112A (en) * | 2021-01-29 | 2021-05-28 | 昆明理工大学 | Fiber capillary copper foam composite liquid absorption core flat micro heat pipe and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110108140B (en) | 2024-07-23 |
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