CN110108060A - A kind of adsorption pump and GAP TYPE thermal switch - Google Patents
A kind of adsorption pump and GAP TYPE thermal switch Download PDFInfo
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- CN110108060A CN110108060A CN201910419471.9A CN201910419471A CN110108060A CN 110108060 A CN110108060 A CN 110108060A CN 201910419471 A CN201910419471 A CN 201910419471A CN 110108060 A CN110108060 A CN 110108060A
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- thermal switch
- adsorption pump
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- 238000001179 sorption measurement Methods 0.000 title claims abstract description 67
- 239000003463 adsorbent Substances 0.000 claims abstract description 57
- 239000011148 porous material Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000002250 absorbent Substances 0.000 claims abstract description 7
- 230000002745 absorbent Effects 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 11
- 238000010521 absorption reaction Methods 0.000 abstract description 10
- 238000003795 desorption Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 39
- 238000010438 heat treatment Methods 0.000 description 12
- 238000001816 cooling Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- -1 silk screen Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
- F25B17/08—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a solid, e.g. salt
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/04—Arrangement or mounting of control or safety devices for sorption type machines, plants or systems
- F25B49/046—Operating intermittently
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The present invention relates to Refrigeration & Cryogenic Technique fields, a kind of adsorption pump and GAP TYPE thermal switch are provided, the adsorption pump includes being sequentially connected by cold end, supporting element and hot end and forming sealing structure, adsorbent is filled in sealing structure, intercommunicating pore is provided in sealing structure, cold end and/or hot end are equipped with extension, and extension stretches to absorbent interior and is isolated with supporting element.Adsorption pump provided by the invention and GAP TYPE thermal switch, by the way that extension is arranged, make adsorbent be heated or it is cooled more quickly, it is uniform sufficiently, heat transfer effect can be effectively improved；Simultaneously because being not in contact with each other between extension, between extension and supporting element, it can be effectively reduced the unfavorable leakage heat in absorption and desorption process between hot end and cold end, reduce energy consumption, to improve heat exchange efficiency, the adsorption pump provided through the invention, it can accelerate the on-off rate of GAP TYPE thermal switch, improve the on-off performance of GAP TYPE thermal switch.
Description
Technical field
The present invention relates to Refrigeration & Cryogenic Technique fields, more particularly, to a kind of adsorption pump and GAP TYPE thermal switch.
Background technique
In Refrigeration & Cryogenic Technique field, many applications require two components that can divide under different working condition
It Shi Xian not be thermally connected and thermal release, GAP TYPE thermal switch are a kind of common thermal control equipment, be used to control two thermal connection components
Between connection with separate.GAP TYPE thermal switch includes adsorption pump, support tube, cold end heat-conducting fins and hot end heat-conducting fins, cold
There are very small gaps between end heat-conducting fins and hot end heat-conducting fins, right at different temperatures using adsorbent in adsorption pump
The absorption and desorption of gas control the disconnection or conducting of GAP TYPE thermal switch.In the conduction mode, heating adsorbent makes
Gas desorption in adsorbent, gas flow into the gap between heat-conducting fins, will by the conductive force of gas in close gap
Cold end heat-conducting fins are connected to hot end heat-conducting fins, keep GAP TYPE thermal switch in the conductive state；It is cooling to inhale under Disconnected mode
Attached dose makes adsorbent restore adsorption capacity again, adsorbent constantly adsorbed gas, the gas in gap between heat-conducting fins
Body is extracted, and is in an off state GAP TYPE thermal switch.By heating and cooling down adsorbent equipment, between heat-conducting fins
Gap is inflated and is evacuated, and realizes the on-off control of GAP TYPE thermal switch.
Currently, being applied to the adsorption pump in GAP TYPE thermal switch, cause working performance poor due to heat exchange efficiency difference.The suction
Attached pump mainly includes shell and adsorbent, and shell is connected with cold source, is dropped by cold source to shell wall side in adsorption process
Temperature is cooling, makes adsorbent adsorbed gas with very strong adsorption capacity, while also setting up heating device on shell, is desorbing
Increase adsorbent temperature by heating device in the process, adsorption capacity decrease, so that gas be made to desorb.
Since adsorption pump needs while connecting cold source and heating device, there are biggish leakages during cooling and heating
Heat, there are biggish losses for the cooling capacity and heating amount of cold source, cannot be fully utilized；Since the heating conduction of adsorbent is poor,
When heating on shell or being cooling, conducted heat by shell to adsorbent, close to shell and the adsorbent far from shell it
Between exist the very big temperature difference, far from shell adsorbent it is very slow to the response speed of hot-fluid, cause the course of work to extend, reduce
Heat exchange efficiency.
Summary of the invention
(1) technical problems to be solved
The embodiment of the present invention provides a kind of adsorption pump and GAP TYPE thermal switch, to solve existing adsorption pump due to unfavorable leakage
Hot big and adsorbent is to the problem that thermal fluid activity is slow and causes heat exchange efficiency low.
(2) technical solution
In order to solve the above-mentioned technical problem, according to a first aspect of the embodiments of the present invention, a kind of adsorption pump is provided, including cold
End, hot end and supporting element, the cold end, supporting element and hot end are sequentially connected and are formed sealing structure, fill out in the sealing structure
Filled with adsorbent, intercommunicating pore is provided in the sealing structure, the cold end and/or hot end are equipped with extension, the extension
Part stretches to the absorbent interior and is isolated with the supporting element.
Further, it is equipped with the extension in the cold and hot end, it is cold that the extension of the cold end, which is arranged in,
Extension is held, the extension that the hot end is arranged in is hot end extension, and the cold end extension and hot end extension interlock cloth
It sets and is not in contact with each other.
Further, the intercommunicating pore is arranged in the hot end, and barriers, the resistance are provided on the inside of the hot end
Pore structure is provided on spacing body.
Further, gas passage is arranged in the absorbent interior, and the gas passage is connected to the intercommunicating pore.
Further, the gas passage is the elongated cylindrical structure rolled by silk screen.
Further, the cold end extension and hot end extension are multiple, and the supporting element is cylindrical structure, multiple
The hot end extension and multiple cold end extensions circumferentially array arrangement in the supporting element.
Further, the hot end includes: hot end side circle and end cap, one end of hot end side circle and the supporting element
The other end of outer side seal connection, the end cap and hot end side circle is tightly connected, and multiple hot end extensions are and institute
The inner wall connection of hot end side circle is stated, and is collected in the shaft core position of hot end side circle, the connecting hole is arranged in the end cap
On, the barriers are located between the inside and the hot end extension of the end cap.
Further, the adsorbent is bonded as one with the extension.
Further, thermally conductive powder is uniformly blended in the adsorbent.
According to a second aspect of the embodiments of the present invention, a kind of GAP TYPE thermal switch, including thermal switch main body, the heat are provided
It further include adsorption pump described in first aspect present invention filled with conducting gas in switch main body, the thermal switch main body and institute
It states and is connected between adsorption pump by connecting leg；
The thermal switch main body include thermal switch cold end, thermal switch hot end and for be tightly connected the switch cold end and
The support tube in thermal switch hot end, the cold end of the adsorption pump and the thermal switch cold end with cold source for being connected, the adsorption pump
Hot end on having heaters is set, the thermal switch hot end is connected with cooled device.
(3) beneficial effect
Adsorption pump provided in an embodiment of the present invention and GAP TYPE thermal switch, the adsorption pump is by cold end, hot end and supporting element
Closing junction structure is constituted, enclosed construction is equipped with intercommunicating pore, and adsorbent is arranged inside enclosed construction, in cold end and/or hot end
Be equipped with extension, by the way that extension is arranged, make adsorbent be heated or it is cooled more quickly, it is uniform sufficiently, Neng Gouyou
Effect improves heat transfer effect；Simultaneously as being not in contact with each other between extension, between extension and supporting element, can be effectively reduced
Unfavorable leakage heat in absorption and desorption process between hot end and cold end, reduces energy consumption, to improve heat exchange efficiency；In addition,
When gas passage is arranged in absorbent interior, flow resistance of the gas in adsorbent can be reduced；It provides through the invention
Adsorption pump, can accelerate the on-off rate of GAP TYPE thermal switch, to improve the on-off performance of GAP TYPE thermal switch.
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 adsorption pump in one embodiment of the invention；
Fig. 2 is the structural schematic diagram of adsorption pump in another embodiment of the present invention；
Fig. 3 is the structural schematic diagram of adsorption pump in further embodiment of this invention；
Fig. 4 is the schematic cross-section of A-A in Fig. 3；
Fig. 5 is the schematic cross-section of B-B in Fig. 3；
Fig. 6 is the decomposition texture schematic diagram of adsorption pump shown in Fig. 3；
Fig. 7 is the structural schematic diagram of GAP TYPE thermal switch in the embodiment of the present invention；
In figure: 1, adsorption pump；2, thermal switch main body；3, connecting leg；11, cold end；12, hot end；13, supporting element；14, it adsorbs
Agent；15, intercommunicating pore；16, barriers；17, gas passage；21, thermal switch cold end；22, thermal switch hot end；23, support tube；111,
Cold end extension；112, mounting hole；121, hot end extension；122, end cap；123, hot end side is enclosed；211, thermal switch cold end extends
Part；221, thermal switch hot end extension.
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 shown in Figure 1, the embodiment of the present invention provides a kind of adsorption pump 1, including cold end 11, hot end 12 and supporting element 13, it is cold
End 11, hot end 12 and supporting element 13 constitute sealing structure, and adsorbent 14, the company of being provided in sealing structure are filled in sealing structure
Through-hole 15.Wherein, and setting in cold end 11 and/or hot end 12 has extension.
That is, extension can be separately provided in the cold end 11 of adsorption pump 1, or extension is separately provided on hot end 12
Part, or extension is set in cold end 11 and hot end 12 simultaneously.Extension protrudes into inside adsorbent 14, extension and supporting element
13 isolation settings do not contact, to reduce between cold end 11 and hot end 12 by generating not between extension and supporting element 13
Benefit leakage heat.
It should be noted that the extension being arranged in cold end 11 is cold end extension 111, setting extends on hot end 12
Part is hot end extension 121.
Specifically, supporting element 13 is the thin-wall circular made of the lower material of thermal coefficient (such as stainless steel, titanium alloy etc.)
Barrel structure, for reducing the thermally conductive leakage heat between cold end 11 and hot end 12, cold end 11, hot end 12, cold end extension 111, hot end
Extension 121 is made of the higher material of thermal coefficient (such as copper, aluminium), is used for augmentation of heat transfer.Adsorbent 14 is using to conducting
Gas has the material of very strong adsorption capacity, such as adsorbent 14 is active carbon, and conducting gas is helium.
In the present embodiment, in order to enable adsorbent more fully can be cooled and be added in absorption and desorption process
Heat, while being provided with cold end extension 111 and hot end extension 121.It is handed between cold end extension 111 and hot end extension 121
Mistake arrangement, and be not in contact with each other, it reduces in the unfavorable leakage heat in absorption and desorption process between hot end 12 and cold end 11, to have
Effect reduces unnecessary energy loss, and heat is enable to be more efficiently used for exchanging heat with adsorbent 14.In the present embodiment, connection
Hole 15 is arranged on hot end 12, for being connected with connecting leg 3, adsorption pump 1 is made to be connected with thermal switch main body 2.
Further, as the improvement of above-described embodiment, as shown in Fig. 2, its primary structure and embodiment illustrated in fig. 1 class
Seemingly, the difference is that, barriers 16 are equipped between adsorbent 14 and intercommunicating pore 15, barriers 16 are specifically located at hot end 12
Inside, be provided with lesser pore structure on barriers 16, which is made of porous materials, such as silk screen, foam
Metal, sintering powder porous structure etc., prevent powdered or smaller particle shape adsorbent 14 from entering intercommunicating pore 15 or connecting leg
3, cause gas circulation be obstructed or adsorbent 14 enter thermal switch main body 2, lead to thermal switch degradation or failure.
On the basis of the above embodiments, since the hole in adsorbent 14 is very small, gas flow resistance is very big, unfavorable
Gas flowing, therefore can be arranged gas passage 17 inside adsorbent 14 in absorption and desorption process, gas passage 17 and
Intercommunicating pore 15 is connected, and keeps flowing unobstructed in absorption and desorption process convenient for the gas in adsorbent 14, reduces gas stream
Dynamic resistance carries out absorption and desorption process more rapidly.Gas passage, which can be, rolls into elongated cylindrical knot with silk screen
Structure, is also possible to be sintered powder, foam metal, cylinder-like structure made of the porous materials such as porous fibre, in cylinder-like structure
The cavity of the heart forms gas passage, and barrel is porous structure, and the micropore of the porous structure is less than the big of absorbent powder or particle
Small, the gas passage for preventing adsorbent from entering cylinder center results in blockage.
Further, as the improvement of above-described embodiment, as shown in figure 3, implementing shown in its primary structure and Fig. 1 and Fig. 2
Example is similar, the difference is that, it is provided with multiple cold end extensions 111 and multiple hot end extensions 121, cold end extension 111
It is greater than two with the quantity of hot end extension 121, cold end extension 111 and hot end extension 121 interlock cloth in supporting element 13
It sets, and circumferentially array arrangement, by increasing extension quantity, improves the heat transfer effect between extension and adsorbent 14.
On the basis of the above embodiments, for the ease of arrangement heater and increase heating surface (area) (HS, hot end 12 is divided be
One end of hot end side circle 123 and end cap 122 this two parts, hot end side circle 123 is connect with the outer side seal of supporting element 13, hot end side
The other end of circle 123 is hatch frame, is sealed by end cap 122.The shaft core position of end cap 122 is arranged in intercommunicating pore 15, resistance
Spacing body 16 is located inside the circle of the hot end side between the inside and hot end extension 121 of end cap 122 122.
Multiple hot end extensions 121 are connect with the inner wall of hot end side circle 123, and in the shaft core position of hot end side circle 123
Collect.Hot end side circle 123 is integrally machined with hot end extension 121, will by end cap 122 after completing adsorbent filling
Adsorption pump 1 is packaged.Fig. 4 is the Section A-A schematic diagram of adsorption pump 1 shown in Fig. 3, it can be seen that 12 heating surface of hot end and heat
End extension 121 is directly connected to, convenient for conducting heat between them；Fig. 5 is the section B-B schematic diagram of adsorption pump 1 shown in Fig. 3,
It can be seen that array distribution is presented in extension, cold end extension 111, hot end extension 121, supporting element 13 are not in contact with each other, greatly
Ground reduces the heat of the unfavorable leakage between cold end 11 and hot end 12.Fig. 6 is adsorption pump decomposition texture schematic diagram shown in Fig. 3, so as to right
The structure of the present embodiment is understood.Mounting hole 112 can also be set in cold end 11, filled convenient for adsorption pump 1 with cold source
With fixation.
Adsorption pump 1 provided by the invention, including but not limited to above-described embodiment, extension can for cylindric, sheet,
Strip, ring-type etc. or other be capable of increasing the shape and structure with the heat exchange area of adsorbent 14.It can also be on extension
Equipped with fin structure (not shown), the heat exchange area between extension and adsorbent 14, enhancing heat exchange effect are further increased
Fruit.
Adsorbent 14, which can be powdered, graininess or graininess, powder-mixed structure, adsorbent 14, to be led to
Bonding agent is crossed to be fixed as one.Adsorbent 14 and extension can also be made to be fixed as one by bonding agent, absorption can be reduced
The thermal resistance of agent 14 and extension contact site improves heat transfer effect, additionally it is possible to keep stable structure.
Thermally conductive powder can also be uniformly blended in adsorbent 14, thermally conductive powder is made of the higher material of thermal coefficient,
Such as copper powders, aluminium powder, silver powder etc. can be improved the heating conduction of adsorbent 14 by blending thermally conductive powder.
Adsorption pump 1 provided in an embodiment of the present invention, including cold end 11, hot end 12, supporting element 13, adsorbent 14 and intercommunicating pore
15, cold end 11, hot end 12, supporting element 13 constitute closing junction structure, and enclosed construction is equipped with intercommunicating pore 15, and adsorbent 14 is set to
Inside enclosed construction, extension is equipped in cold end 11 and/or hot end 12.By the way that extension is arranged, it is heated adsorbent 14
Or it is cooled more quick, uniform abundant, heat transfer effect can be effectively improved；Cold end extension 111, hot end extension 121,
It is not in contact with each other, is can be effectively reduced in the unfavorable leakage in absorption and desorption process between hot end 12 and cold end 11 between supporting element 13
Heat reduces energy consumption；In addition, gas can be reduced in adsorbent 14 when gas passage 17 being arranged inside adsorbent 14
Flow resistance.The adsorption pump 1 provided through the invention can accelerate GAP TYPE thermal switch on-off rate, improve thermal switch
On-off performance.
As shown in fig. 7, the embodiment of the present invention also provides a kind of GAP TYPE thermal switch, including thermal switch main body 2 and above-mentioned
Adsorption pump 1 in each embodiment, adsorption pump 1 are connected to by connecting leg 3 with thermal switch main body 2, filled with certain in thermal switch main body 2
The conducting gas of pressure.
Thermal switch main body 2 includes thermal switch cold end 21, thermal switch hot end 22 and support tube 23, switchs cold end 21 and Re Kai
Hot end 22 is closed to be tightly connected with the both ends of support tube 23 respectively.In the work of GAP TYPE thermal switch, the cold end 11 and heat of adsorption pump 1
Having heaters, thermal switch hot end 22 and cooled device is arranged for being connected with cold source in switch cold end 21 on the hot end 12 of adsorption pump 1
Part is connected.
Further, it is provided with thermal switch cold end extension 211 in thermal switch cold end 21, is arranged on thermal switch hot end 22
There is thermal switch hot end extension 221, thermal switch cold end extension 211 and thermal switch hot end extension 221 are staggered to be formed
Gas gap 24, conducting gas are filled in gas gap 24.
Below by taking the GAP TYPE thermal switch for working in low temperature warm area as an example, the course of work of the present embodiment is illustrated:
After cold source start-up operation, sink temperature is gradually decreased, and eventually drops to low-temperature working warm area, in this mistake
Cheng Zhong declines with cold end 11,21 temperature of thermal switch cold end of the close-connected adsorption pump 1 of cold source, therewith with the reduction of temperature
The adsorption capacity of adsorbent 14 enhances, and starts to adsorb the gas in thermal switch, the gas in thermal switch main body 2 gradually subtracts
Few, the capacity of heat transmission is gradually deteriorated, and is in an off state thermal switch.
In order to cool down cooled device, need that thermal switch is made to be on mode, heater is to adsorption pump 1
It is heated, heat is transmitted along the hot end 12 of adsorption pump 1, hot end extension 121 to adsorbent 14,14 temperature liter of adsorbent
Height desorbs, and the gas desorbed makes thermal switch be on shape by flowing to thermal switch main body 2 together with hole 15, connecting leg 3
State.
Further, the heat of cooled device is along thermal switch hot end 22, thermal switch hot end extension 221, gap 24
Gas blanket, thermal switch cold end extension 211, thermal switch cold end 21 to cold source transmit, taken away by cold source, in this process by
The decline of cooling device temperature.After cooled device is down to low-temperature working temperature, when needing that thermal switch is made to be in Disconnected mode,
Adsorption pump 1 is heated in stopping, and the cooling effect due to cold source to adsorption pump 1 makes cold end 11,111 temperature of cold end extension
It reduces, cooling down is carried out to adsorbent 14, adsorbent 14 is made to restore adsorption capacity, the gas in thermal switch main body 2 is sucked
In adsorption pump 14, the gas gap 24 in thermal switch main body 2 is made to be in the state close to vacuum, thermal switch disconnects.
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 adsorption pump, including cold end, hot end and supporting element, which is characterized in that the cold end, supporting element and hot end successively connect
Sealing structure is connect and formed, adsorbent is filled in the sealing structure, is provided with intercommunicating pore in the sealing structure, it is described cold
End and/or hot end are equipped with extension, and the extension stretches to the absorbent interior and is isolated with the supporting element.
2. adsorption pump according to claim 1, which is characterized in that the extension is equipped in the cold and hot end,
The extension that the cold end is arranged in is cold end extension, and the extension that the hot end is arranged in is hot end extension, described cold
It end extension and hot end extension interlaced arrangement and is not in contact with each other.
3. adsorption pump according to claim 2, which is characterized in that the intercommunicating pore is arranged in the hot end, in the heat
It is provided with barriers on the inside of end, is provided with pore structure on the barriers.
4. adsorption pump according to claim 3, which is characterized in that gas passage, the gas is arranged in the absorbent interior
Body channel is connected to the intercommunicating pore.
5. adsorption pump according to claim 4, which is characterized in that the gas passage is the elongated circle rolled by silk screen
Tubular structure.
6. adsorption pump according to claim 5, which is characterized in that the cold end extension and hot end extension are more
A, the supporting element is cylindrical structure, and multiple hot end extensions and multiple cold end extensions are in the supporting element
Circumferentially array arrangement.
7. adsorption pump according to claim 6, which is characterized in that the hot end includes: hot end side circle and end cap, the heat
One end of end side circle is connect with the outer side seal of the supporting element, and the other end of the end cap and hot end side circle, which seals, to be connected
It connects, multiple hot end extensions are connect with the inner wall of hot end side circle, and are converged in the shaft core position of hot end side circle
Collection, the connecting hole are arranged on the end cap, the barriers be located at the end cap inside and the hot end extension it
Between.
8. according to claim 1 to any adsorption pump in 7, which is characterized in that the adsorbent and the extension are viscous
It is connected in one.
9. according to claim 1 to any adsorption pump in 7, which is characterized in that be uniformly blended with and lead in the adsorbent
Hot powder.
10. a kind of GAP TYPE thermal switch, including thermal switch main body, the thermal switch main body is interior filled with conducting gas, feature
It is, further includes any adsorption pump in claim 1 to 9, pass through between the thermal switch main body and the adsorption pump
Connecting leg connection；
The thermal switch main body includes thermal switch cold end, thermal switch hot end and for being tightly connected the switch cold end and Re Kai
The support tube in hot end is closed, the cold end of the adsorption pump and the thermal switch cold end are used to be connected with cold source, the heat of the adsorption pump
Having heaters is set on end, and the thermal switch hot end is connected with cooled device.
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| CN201910419471.9A CN110108060B (en) | 2019-05-20 | 2019-05-20 | Adsorption pump and air gap type thermal switch |
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| CN110108060B CN110108060B (en) | 2024-07-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902490A (en) * | 2021-02-04 | 2021-06-04 | 中国科学院理化技术研究所 | Adsorption refrigerator |
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| US20080229928A1 (en) * | 2007-03-20 | 2008-09-25 | Urbahn John A | Sorption pump with integrated thermal switch |
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| CN104654692A (en) * | 2013-11-22 | 2015-05-27 | 中国科学院理化技术研究所 | Air gap type thermal switch applied to extremely-low-temperature refrigerator and heat conduction method thereof |
| EP3217137A1 (en) * | 2016-03-10 | 2017-09-13 | Commissariat à l'Energie Atomique et aux Energies Alternatives | Device for thermally cooling an object from a cold source such as a cryogenic fluid bath |
| CN210242072U (en) * | 2019-05-20 | 2020-04-03 | 中国科学院理化技术研究所 | Adsorption pump and air gap type thermal switch |
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| US20080229928A1 (en) * | 2007-03-20 | 2008-09-25 | Urbahn John A | Sorption pump with integrated thermal switch |
| CN101646868A (en) * | 2007-03-20 | 2010-02-10 | 通用电气公司 | Adsorption pump with integrated thermal switch |
| US20080242974A1 (en) * | 2007-04-02 | 2008-10-02 | Urbahn John A | Method and apparatus to hyperpolarize materials for enhanced mr techniques |
| CN104654692A (en) * | 2013-11-22 | 2015-05-27 | 中国科学院理化技术研究所 | Air gap type thermal switch applied to extremely-low-temperature refrigerator and heat conduction method thereof |
| EP3217137A1 (en) * | 2016-03-10 | 2017-09-13 | Commissariat à l'Energie Atomique et aux Energies Alternatives | Device for thermally cooling an object from a cold source such as a cryogenic fluid bath |
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| CN112902490A (en) * | 2021-02-04 | 2021-06-04 | 中国科学院理化技术研究所 | Adsorption refrigerator |
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| CN110108060B (en) | 2024-07-23 |
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