CN110319720A - A kind of unidirectional heat transfer unit (HTU) of phase-transition heat-storage and its manufacturing method - Google Patents
A kind of unidirectional heat transfer unit (HTU) of phase-transition heat-storage and its manufacturing method Download PDFInfo
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- CN110319720A CN110319720A CN201910531651.6A CN201910531651A CN110319720A CN 110319720 A CN110319720 A CN 110319720A CN 201910531651 A CN201910531651 A CN 201910531651A CN 110319720 A CN110319720 A CN 110319720A
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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
- F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
-
- 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
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/021—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material and the heat-exchanging means being enclosed in one container
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Laminated Bodies (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The present invention relates to a kind of unidirectional heat transfer unit (HTU)s of phase-transition heat-storage, including phase-transition heat-storage aluminium sheet (1) interconnected and heat pipe (2), the phase-transition heat-storage aluminium sheet (1) includes hollow aluminium sheet (5), the phase-change material (6) being filled in hollow aluminium sheet (5), and phase-change material (6) is sealed in the sealant (4) in hollow aluminium sheet (5), the heat pipe (2) includes shell (7), the tube core (10) of shell (7) inner wall and the working fluid (9) that is filled in tube core (10) inner cavity.Compared with prior art, the present invention is on the basis of traditional accumulation of heat, it is shown that the unidirectional delivery of heat has the function of rapid cooling.
Description
Technical field
The present invention relates to energy-saving fields, more particularly, to a kind of unidirectional heat transfer unit (HTU) of phase-transition heat-storage and its manufacturing method.
Background technique
With the development of science and technology, people require " heat dissipation " higher and higher.There are mainly three types of substantially square for heat transfer
Formula: thermally conductive, thermal convection and heat radiation.Main radiating mode is natural heat dissipation in daily life and field of industrial production, is passed through
The direct temperature difference of heat source and air carries out the transmitting of heat, to achieve the purpose that " to radiate ".
But space higher for cooling requirements for boiler room, cabinet etc., the mode of natural heat dissipation are unable to satisfy it and dissipate
Heat request, such as the internal unit of certain cabinets generate big calorimetric in use, and common natural heat dissipation mode is unable to satisfy
Its radiating requirements easily causes the mechanical performance and electric property decline of electric appliance, finally results in the job failure of electric appliance, or even make
At major accident.
It is force ventilation that tradition, which accelerates the mode of heat dissipation,.Such as cabinet adds fan, realizes ventilation and heat；Boiler room is added
Mechanical ventilator etc., but force ventilation there is noises it is big, energy consumption is high the disadvantages of.
Hot pipe technique is George Ge Luofo of U.S. Los Alamos (Los Alamos) National Laboratory in 1963
One kind of (George Grover) invention is known as the heat transfer element of " heat pipe ", it takes full advantage of heat-conduction principle and phase transformation is situated between
The heat of thermal objects is transmitted to outside heat source rapidly by the quick thermal transport property of matter through heat pipe, and the capacity of heat transmission is more than to appoint
The capacity of heat transmission of what known metal.Heat pipe (heat pipe) technology solves the noise problem of traditional heat sinks well,
It is common on the radiator of CPU now.But hot pipe technique is mainly used in the heat dissipation of heat point source.For heat space or face
The heat dissipation of heat source depends merely on hot pipe technique and is difficult to solve.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of phase change heat storage type is saturating
Light building materials and its manufacturing method.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of unidirectional heat transfer unit (HTU) of phase-transition heat-storage, including phase-transition heat-storage aluminium sheet interconnected and heat pipe, the phase transformation store
The phase-change material that hot aluminium sheet includes hollow aluminium sheet, is filled in hollow aluminium sheet, and phase-change material is sealed in hollow aluminium sheet
Sealant, the heat pipe includes shell, the tube core of inner wall of tube shell and the working fluid that is filled in tube core inner cavity.
Further, the phase-transition heat-storage aluminium sheet is connected with heat pipe by thermally conductive adhering and sealing silicon rubber.
Further, one end of the heat pipe is connected with the geometric center point of the phase-transition heat-storage aluminium sheet.
Further, the sealant is polyurethane adhesive, organic silica gel, any one or a few mixed in acrylate glue
It closes.
Further, the hollow aluminium sheet is square, side length 500-600mm, with a thickness of 20mm, the pipe of the heat pipe
The long 1/8-1/4 of a length of hollow aluminum edges of boards, the caliber of the heat pipe are the 1/5-1/3 of pipe range.
Further, the phase-change material is calcium chloride water or fatty acid, or selects suitable phase according to concrete application
The phase-change material of temperature.
Further, the both ends of the heat pipe are provided with end cap, and the end cap is aluminium or copper.
Further, the shell is aluminium, copper or stainless steel.
Further, if heat pipe is Cryo Heat Tube, working fluid is ammonia, and corresponding housing material is aluminium or stainless steel；
If heat pipe is room temperature heat pipe, working fluid is ethyl alcohol or acetone, when working fluid is ethyl alcohol, corresponding housing material
Material is copper or stainless steel；When working fluid is acetone, corresponding housing material is aluminium or copper or stainless steel；
If heat pipe is moderate temperature heat pipe, working fluid is biphenyl or naphthalene, and when working fluid is biphenyl, corresponding housing material is
Stainless steel；When working fluid is naphthalene, corresponding housing material is aluminium or stainless steel；
If heat pipe is high-temperature heat pipe, working fluid is potassium or sodium, and when working fluid is potassium, corresponding housing material is not
Become rusty steel；When working fluid is sodium, corresponding housing material is stainless steel.
Further, the tube core is the single-layer or multi-layer steel wire rack for being close to tube wall, sintering powder tube core, axial slot formula pipe
One of core, combined die.
Further, sintering powder tube core is formed and is managed in inside pipe wall face using the metal powder sintered of certain mesh number
The sintering powder tube core of wall one, or the tube core on inside pipe wall face is sintered with wire mesh；
Axial slot formula tube core is to open axial stria in inner wall of tube shell to provide capillary head and liquid reflux channel, slot
Cross sectional shape can be rectangle, trapezoidal, round and variable cross-section conduit；
It is close to the single layer of tube wall and the tube core of multilayer web-roll core, is the abutting single-layer or multi-layer steel wire rack on tube wall, wherein multilayer
It should be close to as far as possible between the stratum reticulare of net, good fit is also answered between net and tube wall, stratum reticulare number has l to 4 layers or more, each layer net
Mesh number may be the same or different, if stratum reticulare is more, liquid communication section is big, and resistance is small, but radial direction thermal resistance is big, be taken out with capillary when fine-structure mesh
Suction is big but flow resistance also increases；
Combined die is to form the tube core with tube wall one in inside pipe wall face at metal powder using thinner net.
A kind of manufacturing method of the unidirectional heat transfer unit (HTU) of phase-transition heat-storage, comprising the following steps:
(a) hollow aluminium sheet side is drilled, phase-change material is heated into after liquid and is injected in hollow aluminium sheet, then with sealing
Glue seals hollow aluminium sheet；
(b) tube core is manufactured in the inner wall of tube shell of heat pipe, negative pressure will be pumped into pipe, be then charged with working fluid, it, will after being full of
Heat pipe welded seal；
(c) heat pipe is Nian Jie with phase-transition heat-storage aluminium sheet.
Preferably, in step (b): the pressure after taking out negative pressure in pipe is 1.3 × (10-1~10-4)Pa。
The heat accumulation function of the device is mainly realized that the aluminium sheet is used as plate by phase-transition heat-storage aluminium sheet, accelerates aluminium sheet one
The heat of side is transmitted to the other side, and inside uses phase-change material, is changed state of matter in the case where temperature-resistant and is provided latent heat, right
In the storage of the heat of source space, the thermostabilization of space interior is maintained to have significant advantage.
The unidirectional heat transmission function of the device is mainly realized by the aluminium sheet of filling phase-change material with heat pipe jointly.Inside heat pipe master
Vapour, the liquid phase-change heat transfer of working fluid are leaned on, thermal resistance very little has the very high capacity of heat transmission.Heat pipe one end and phase-transition heat-storage aluminium
Plate connection, other end is condensation end, and when heat pipe one end is heated, liquid rapid vaporization in capillary, steam is in thermal diffusion
Power under flow to other end, and release heat in cold end condensation, liquid flows back to steaming by capillarity along porous material again
Originator, so circulation are more than, and until heat pipe both ends, temperature is equal (stopping of steam thermal diffusion at this time).This circulation is quickly to carry out
, heat, which can be conducted continuously, to be come.
Compared with prior art, the invention has the following advantages:
1. energy saving: either undertaken in the unidirectional heat transfer sheet of phase-transition heat-storage heat accumulation function phase-transition heat-storage aluminium sheet and
Undertake the heat pipe of heat transmission function, be all the characteristic of Transformation Principle and material is utilized to carry out the storage and transmitting of thermal energy, and
Other driven by energy are not needed, energy-saving effect is significant.
2. very high thermal conductivity: undertaking the heat pipe of heat transmission function in the unidirectional heat transfer sheet of phase-transition heat-storage inside it mainly by work
Make vapour, the liquid phase-change heat transfer of liquid, thermal resistance very little, therefore there is the very high capacity of heat transmission.It is single with the metal phases ratio such as silver, copper, aluminium
The heat pipe of position weight can transmit the heat of several orders of magnitude more, and heat pipe one end is connect with phase-transition heat-storage aluminium sheet, and other end is cold
Solidifying end, when heat pipe one end is heated, liquid rapid vaporization in capillary, steam flows to other one under the power of thermal diffusion
End, and heat is released in cold end condensation, liquid flows back to evaporation ends by capillarity along porous material again, and so circulation is more than,
Until heat pipe both ends, temperature is equal (stopping of steam thermal diffusion at this time), and this circulation quickly carries out, and heat can be by a steady stream
It constantly conducts and.
3. very strong heat storage capacity, reinforce the thermal stability to source space: compared to other materials, such as concrete,
Sheet metal, brick undertake the phase-transition heat-storage aluminium sheet of accumulation of heat in the unidirectional heat transfer sheet of phase-transition heat-storage, and internal is mainly phase transformation material
Material.Because changing state of matter in the case that phase-change material is temperature-resistant and the substance of latent heat can be provided.Change physical
The process of matter is known as phase transition process, and phase-change material will absorb or discharge a large amount of latent heat.So for the heat of source space
Storage, maintains the thermostabilization of space interior to have significant advantage.
4. the influence for heat source is small: radiating compared to traditional force ventilation, the unidirectional heat transfer sheet of phase-transition heat-storage passes through
The modes such as the radiation, convection current of normal heat, thermally conductive collect and store heat in space transfers heat away from again, has no effect on sky
Between internal air velocity etc..Influence to heat source is small, while can be adapted for by spaces such as more dust, objects fine crushing.
Detailed description of the invention
Fig. 1 is a kind of perspective view of the unidirectional heat transfer unit (HTU) of phase-transition heat-storage in the present invention；
Fig. 2 is a kind of side view of the unidirectional heat transfer unit (HTU) of phase-transition heat-storage in the present invention.
Shown in figure label:
1, phase-transition heat-storage aluminium sheet, 2, heat pipe, 3, silicone rubber for sealing, 4, sealant, 5, hollow aluminium sheet, 6, phase-change material, 7,
Shell, 8, end cap, 9, working fluid, 10, tube core.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of unidirectional heat transfer unit (HTU) of phase-transition heat-storage, including phase-transition heat-storage aluminium sheet 1 interconnected and heat pipe 2, phase-transition heat-storage
Aluminium sheet 1 includes hollow aluminium sheet 5, the phase-change material 6 being filled in hollow aluminium sheet 5, and phase-change material 6 is sealed in hollow aluminium sheet
Sealant 4 in 5, heat pipe 2 include shell 7, the tube core 10 of 7 inner wall of shell and the working fluid that is filled in 10 inner cavity of tube core
9。
Phase-transition heat-storage aluminium sheet 1 and heat pipe 2 are connected by thermally conductive adhering and sealing silicon rubber 3.One end of heat pipe 2 and phase-transition heat-storage
The geometric center point of aluminium sheet 1 is connected.Sealant 4 is polyurethane adhesive, organic silica gel, any one or a few in acrylate glue
Mixing.Hollow aluminium sheet 5 is square, side length 500-600mm, and with a thickness of 20mm, the pipe range of heat pipe 2 is hollow 5 side of aluminium sheet
Long 1/8-1/4, the caliber of heat pipe 2 are the 1/5-1/3 of pipe range.Phase-change material 6 be calcium chloride water or fatty acid, or according to
Concrete application selects the phase-change material 6 of suitable phase transition temperature.The both ends of heat pipe 2 are provided with end cap 8, and end cap 8 is aluminium or copper.
If heat pipe 2 is Cryo Heat Tube, working fluid 9 is ammonia, and corresponding housing material is aluminium or stainless steel；
If heat pipe 2 is room temperature heat pipe, working fluid 9 is ethyl alcohol or acetone, when working fluid 9 is ethyl alcohol, corresponding shell
Body material is copper or stainless steel；When working fluid 9 is acetone, corresponding housing material is aluminium or copper or stainless steel；
If heat pipe 2 is moderate temperature heat pipe, working fluid 9 is biphenyl or naphthalene, when working fluid 9 is biphenyl, corresponding housing material
Material is stainless steel；When working fluid 9 is naphthalene, corresponding housing material is aluminium or stainless steel；
If heat pipe 2 is high-temperature heat pipe, working fluid 9 is potassium or sodium, when working fluid 9 is potassium, corresponding housing material
For stainless steel；When working fluid 9 is sodium, corresponding housing material is stainless steel.
Tube core 10 is the single-layer or multi-layer steel wire rack for being close to tube wall, sintering powder tube core, axial slot formula tube core, combined die
One of.
A kind of manufacturing method of the unidirectional heat transfer unit (HTU) of phase-transition heat-storage, comprising the following steps:
(a) hollow 5 side of aluminium sheet is drilled, phase-change material 6 is heated into after liquid and is injected in hollow aluminium sheet 5, is then used
Sealant 4 seals hollow aluminium sheet 5；
(b) tube core 10 is manufactured in 7 inner wall of shell of heat pipe 2,1.3 × (10 will be pumped into pipe-1~10-4) Pa negative pressure, so
After be filled with working fluid 9, after being full of, by 2 welded seal of heat pipe；
(c) heat pipe 2 is be bonded with phase-transition heat-storage aluminium sheet 1.
Embodiment 2
A kind of unidirectional heat transfer unit (HTU) of phase-transition heat-storage, including phase-transition heat-storage aluminium sheet 1 interconnected and heat pipe 2, phase-transition heat-storage
Aluminium sheet 1 includes hollow aluminium sheet 5, the phase-change material 6 being filled in hollow aluminium sheet 5, and phase-change material 6 is sealed in hollow aluminium sheet
Sealant 4 in 5, heat pipe 2 include shell 7, the tube core 10 of 7 inner wall of shell and the working fluid that is filled in 10 inner cavity of tube core
9。
The Cabinet of various electrical equipments, such as outdoor communication cabinet, internal temperature usually can reach 40~60 DEG C, sternly
Ghost image rings electronic device performance and has biggish security risk.Unidirectional heat transfer outward is needed, heat pipe 2 is arranged on the outside of cabinet.If
The organic aliphatic acid phase-change material 6 that phase transition temperature is 35 DEG C is filled into hollow aluminium sheet 5, when cabinet inside temperature is more than 35 DEG C
When, phase-change material 6 can absorb heat, then by the internal heat pipe 2 filled ethyl alcohol, be sintered powder tube core 10, continue to dissipate heat
It is dealt into the air outside cabinet, cabinet inside temperature can be maintained at 35 DEG C or so.500mm*500mm* can be used in aluminium sheet size
20mm, 2 length of heat pipe are the 1/5~1/4 of aluminium sheet side length, and 2 caliber of heat pipe is the 1/5~1/3 of 2 length of heat pipe.
Embodiment 3
A kind of unidirectional heat transfer unit (HTU) of phase-transition heat-storage, including phase-transition heat-storage aluminium sheet 1 interconnected and heat pipe 2, phase-transition heat-storage
Aluminium sheet 1 includes hollow aluminium sheet 5, the phase-change material 6 being filled in hollow aluminium sheet 5, and phase-change material 6 is sealed in hollow aluminium sheet
Sealant 4 in 5, heat pipe 2 include shell 7, the tube core 10 of 7 inner wall of shell and the working fluid that is filled in 10 inner cavity of tube core
9。
China's High Altitude in West China area solar energy resources are abundant, and solar thermal collector is easy to produce the summer when using water as medium
The problems such as Ji Gaowen booster and night in winter freeze can efficiently use solar radiation by this device combination heat collector
It heats air and is used for heat supply.Inwardly unidirectional heat transfer is needed, indoors by the setting of heat pipe 2.If the nothing for being 50 DEG C or so by phase transition temperature
Machine phase-change material 6 is filled into hollow aluminium sheet 5, and the heat pipe 2 that connecting inner fills acetone, is sintered powder tube core continues heat
It is transmitted to air, may be implemented to indoor heat supply needs.
Embodiment 4
A kind of unidirectional heat transfer unit (HTU) of phase-transition heat-storage, including phase-transition heat-storage aluminium sheet 1 interconnected and heat pipe 2, the phase transformation
Accumulation of heat aluminium sheet 1 includes hollow aluminium sheet 5, the phase-change material 6 that is filled in hollow aluminium sheet 5, and phase-change material 6 is sealed in hollow
Sealant 4 in aluminium sheet 5, the heat pipe 2 include shell 7,7 inner wall of shell tube core 10 and be filled in 10 inner cavity of tube core
Working fluid 9.
South China hot area roofing or metope can use this device radiation, reduce energy consumption of air conditioning in summer.It needs outside
Unidirectional heat transfer, heat pipe 2 is arranged in outdoor.If the inorganic phase-changing material 6 that phase transition temperature is 40 DEG C or so is filled into aluminium sheet,
Connecting inner fills the heat pipe 2 of methanol, axial slot formula tube core, persistently distributes heat in outdoor air, can make roofing
Or exterior wall surface temperature maintains 40 DEG C or less.For hollow aluminium sheet 5 having a size of 600mm*600mm*20mm, 2 length of heat pipe is hollow
The 1/8~1/4 of 5 side length of aluminium sheet, 2 caliber of heat pipe are the 1/5~1/3 of 2 length of heat pipe.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention
Within protection scope.
Claims (10)
1. a kind of unidirectional heat transfer unit (HTU) of phase-transition heat-storage, which is characterized in that including phase-transition heat-storage aluminium sheet (1) interconnected and heat pipe
(2), the phase-transition heat-storage aluminium sheet (1) includes hollow aluminium sheet (5), the phase-change material (6) being filled in hollow aluminium sheet (5), and
Phase-change material (6) is sealed in the sealant (4) in hollow aluminium sheet (5), the heat pipe (2) includes shell (7), in shell (7)
The tube core (10) of wall and the working fluid (9) being filled in tube core (10) inner cavity.
2. the unidirectional heat transfer unit (HTU) of a kind of phase-transition heat-storage according to claim 1, which is characterized in that the phase-transition heat-storage aluminium sheet
(1) it is connected with heat pipe (2) by thermally conductive adhering and sealing silicon rubber (3).
3. the unidirectional heat transfer unit (HTU) of a kind of phase-transition heat-storage according to claim 1, which is characterized in that the one of the heat pipe (2)
End is connected with the geometric center point of the phase-transition heat-storage aluminium sheet (1).
4. the unidirectional heat transfer unit (HTU) of a kind of phase-transition heat-storage according to claim 1, which is characterized in that the sealant (4) is
Polyurethane adhesive, organic silica gel, any one or a few the mixing in acrylate glue.
5. the unidirectional heat transfer unit (HTU) of a kind of phase-transition heat-storage according to claim 1, which is characterized in that the hollow aluminium sheet (5)
It is square, side length 500-600mm, with a thickness of 20mm, the pipe range of the heat pipe (2) is the 1/8- of hollow aluminium sheet (5) side length
1/4, the caliber of the heat pipe (2) is the 1/5-1/3 of pipe range.
6. the unidirectional heat transfer unit (HTU) of a kind of phase-transition heat-storage according to claim 1, which is characterized in that the phase-change material (6)
For calcium chloride water or fatty acid.
7. the unidirectional heat transfer unit (HTU) of a kind of phase-transition heat-storage according to claim 1, which is characterized in that the two of the heat pipe (2)
End is provided with end cap (8), and the end cap (8) is aluminium or copper.
8. the unidirectional heat transfer unit (HTU) of a kind of phase-transition heat-storage according to claim 1, which is characterized in that the tube core (10) is tight
One of paste the single-layer or multi-layer steel wire rack of tube wall, be sintered powder tube core, axial slot formula tube core, combined die.
9. a kind of manufacturing method of the unidirectional heat transfer unit (HTU) of phase-transition heat-storage according to claim 1, which is characterized in that including with
Lower step:
(a) hollow aluminium sheet (5) side is drilled, phase-change material (6) is heated into after liquid and is injected in hollow aluminium sheet (5), then
Hollow aluminium sheet (5) are sealed with sealant (4)；
(b) shell (7) inner wall in heat pipe (2) manufactures tube core (10), will be pumped into negative pressure in pipe, is then charged with working fluid (9),
After being full of, by heat pipe (2) welded seal；
(c) heat pipe (2) is Nian Jie with phase-transition heat-storage aluminium sheet (1).
10. a kind of manufacturing method of the unidirectional heat transfer unit (HTU) of phase-transition heat-storage according to claim 1, which is characterized in that step
(b) in: the pressure after taking out negative pressure in pipe is 1.3 × (10-1~10-4)Pa。
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| CN111278255A (en) * | 2019-12-31 | 2020-06-12 | 南京理工大学 | Phase change heat storage device based on condensation heat transfer and key parameter determination method thereof |
| CN111895827A (en) * | 2020-07-16 | 2020-11-06 | 广州大学 | Thermal diode and processing method thereof |
| CN115679968A (en) * | 2022-11-15 | 2023-02-03 | 苏州中材建设有限公司 | Concrete temperature control anti-cracking structure and construction method |
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| CN111278255A (en) * | 2019-12-31 | 2020-06-12 | 南京理工大学 | Phase change heat storage device based on condensation heat transfer and key parameter determination method thereof |
| CN111278255B (en) * | 2019-12-31 | 2021-09-21 | 南京理工大学 | Phase change heat storage device based on condensation heat transfer and key parameter determination method thereof |
| CN111895827A (en) * | 2020-07-16 | 2020-11-06 | 广州大学 | Thermal diode and processing method thereof |
| CN115679968A (en) * | 2022-11-15 | 2023-02-03 | 苏州中材建设有限公司 | Concrete temperature control anti-cracking structure and construction method |
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| CN110319720B (en) | 2021-06-04 |
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