CN110319720B - Phase-change heat-storage unidirectional heat transfer device and manufacturing method thereof - Google Patents

Phase-change heat-storage unidirectional heat transfer device and manufacturing method thereof Download PDF

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Publication number
CN110319720B
CN110319720B CN201910531651.6A CN201910531651A CN110319720B CN 110319720 B CN110319720 B CN 110319720B CN 201910531651 A CN201910531651 A CN 201910531651A CN 110319720 B CN110319720 B CN 110319720B
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heat
aluminum plate
pipe
phase change
tube
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CN110319720A (en
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叶海
王钰君
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Tongji University
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Tongji University
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-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
    • F28D15/02Heat-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
    • F28D15/0275Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • F28D20/021Heat 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

Abstract

The invention relates to a phase change heat storage one-way heat transfer device which comprises a phase change heat storage aluminum plate (1) and a heat pipe (2) which are connected with each other, wherein the phase change heat storage aluminum plate (1) comprises a hollow aluminum plate (5), a phase change material (6) filled in the hollow aluminum plate (5), and a sealant (4) for sealing the phase change material (6) in the hollow aluminum plate (5), and the heat pipe (2) comprises a pipe shell (7), a pipe core (10) on the inner wall of the pipe shell (7) and working liquid (9) filled in the inner cavity of the pipe core (10). Compared with the prior art, the invention displays the unidirectional heat transfer on the basis of the traditional heat storage and has the function of rapid heat dissipation.

Description

Phase-change heat-storage unidirectional heat transfer device and manufacturing method thereof
Technical Field
The invention relates to the field of energy conservation, in particular to a phase change heat storage one-way heat transfer device and a manufacturing method thereof.
Background
With the development of science and technology, people have higher and higher requirements on heat dissipation. There are three basic ways of heat transfer: thermal conduction, thermal convection, and thermal radiation. The main heat dissipation mode in the daily life and industrial production fields is natural heat dissipation, and heat is transferred through the direct temperature difference between a heat source and air, so that the purpose of heat dissipation is achieved.
However, for spaces with high heat dissipation requirements such as boiler rooms and cabinets, the heat dissipation requirements cannot be met by a natural heat dissipation manner, for example, internal devices of some cabinets generate a large amount of heat in the use process, and a common natural heat dissipation manner cannot meet the heat dissipation requirements, so that the mechanical performance and the electrical performance of an electrical appliance are easily reduced, and finally, a working failure of the electrical appliance is caused, and even a serious accident is caused.
The traditional way to accelerate heat dissipation is mechanical ventilation. For example, a fan is additionally arranged on the cabinet to realize ventilation and heat dissipation; the boiler room is additionally provided with a mechanical ventilation device and the like, but the mechanical ventilation has the defects of high noise, high energy consumption and the like.
The heat pipe technology is a heat transfer element called a heat pipe invented by George Grover (George Grover) of national laboratory of Los Alamos (Los Alamos) in 1963, fully utilizes the heat conduction principle and the rapid heat transfer property of a phase change medium, quickly transfers the heat of a heating object to the outside of a heat source through the heat pipe, and the heat conduction capability of the heat transfer element exceeds the heat conduction capability of any known metal. The heat pipe (heat pipe) technology makes the noise problem of the traditional heat sink well solved, and is now commonly found on the heat sink of the CPU. Heat pipe technology is primarily applied to the dissipation of heat from point heat sources. For heat dissipation of a hot space or a surface heat source, the technology of only relying on the heat pipe is difficult to solve.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a phase-change heat-storage type light-transmitting building material and a manufacturing method thereof.
The purpose of the invention can be realized by the following technical scheme:
the phase change heat storage one-way heat transfer device comprises a phase change heat storage aluminum plate and a heat pipe which are connected with each other, wherein the phase change heat storage aluminum plate comprises a hollow aluminum plate, a phase change material filled in the hollow aluminum plate and a sealant for sealing the phase change material in the hollow aluminum plate, and the heat pipe comprises a pipe shell, a pipe core of the inner wall of the pipe shell and a working liquid filled in the inner cavity of the pipe core.
Further, the phase change heat storage aluminum plate and the heat pipe are connected through heat conduction bonding sealing silicon rubber.
Furthermore, one end of the heat pipe is connected with the geometric center point of the phase change heat storage aluminum plate.
Further, the sealant is any one or a mixture of a plurality of polyurethane glue, organic silica gel and acrylic acid glue.
Furthermore, the hollow aluminum plate is square, the side length is 500-600mm, the thickness is 20mm, the tube length of the heat pipe is 1/8-1/4 of the side length of the hollow aluminum plate, and the tube diameter of the heat pipe is 1/5-1/3 of the tube length.
Further, the phase-change material is calcium chloride aqueous solution or fatty acid, or the phase-change material with a proper phase-change temperature is selected according to specific application.
Furthermore, both ends of the heat pipe are provided with end covers, and the end covers are made of aluminum or copper.
Further, the tube shell is made of aluminum, copper or stainless steel.
Further, if the heat pipe is a low-temperature heat pipe, the working liquid is ammonia, and the corresponding shell material is aluminum or stainless steel;
if the heat pipe is a normal-temperature heat pipe, the working liquid is ethanol or acetone, and when the working liquid is ethanol, the corresponding shell material is copper or stainless steel; when the working liquid is acetone, the corresponding shell material is aluminum or copper or stainless steel;
if the heat pipe is a medium-temperature heat pipe, the working liquid is biphenyl or naphthalene, and when the working liquid is biphenyl, the corresponding shell material is stainless steel; when the working liquid is naphthalene, the corresponding shell material is aluminum or stainless steel;
if the heat pipe is a high-temperature heat pipe, the working liquid is potassium or sodium, and when the working liquid is potassium, the corresponding shell material is stainless steel; when the working liquid is sodium, the corresponding shell material is stainless steel.
Further, the tube core is one of a single-layer or multi-layer mesh core, a sintered powder tube core, an axial channel type tube core and a combined tube core which are close to the tube wall.
Furthermore, the sintered powder tube core is formed by sintering a certain mesh of metal powder on the inner wall surface of the tube to form a sintered powder tube core integrated with the tube wall, or is sintered on the tube core on the inner wall surface of the tube by using a wire mesh;
the axial channel type tube core is provided with an axial fine groove on the inner wall of the tube shell to provide a capillary pressure head and a liquid backflow channel, and the cross section of the groove can be a rectangular, trapezoidal, circular or variable cross section channel;
the pipe core of single-layer or multi-layer net core clinging to the pipe wall is to cling single-layer or multi-layer net core on the pipe wall, wherein the net layers of the multi-layer net should cling to each other as much as possible, the net and the pipe wall should also cling well, the number of the net layers is l to 4 or more, the mesh number of each layer of net can be the same or different, if the net layers are more, the liquid flow cross section is large, the resistance is small, but the radial thermal resistance is large, when the fine net is used, the capillary suction force is large, but the flow resistance is increased;
the combined pipe core is formed by adopting thinner netted metal powder on the inner wall surface of the pipe and is integrated with the pipe wall.
A manufacturing method of a phase change heat storage unidirectional heat transfer device comprises the following steps:
(a) drilling a hole on one side of the hollow aluminum plate, heating the phase change material into liquid, injecting the liquid into the hollow aluminum plate, and sealing the hollow aluminum plate by using a sealant;
(b) manufacturing a tube core on the inner wall of a tube shell of the heat pipe, pumping the tube into negative pressure, then filling working liquid, and welding and sealing the heat pipe after filling the working liquid;
(c) and bonding the heat pipe with the phase change heat storage aluminum plate.
Preferably, in step (b): the pressure after the negative pressure is pumped in the tube is 1.3 x (10)-1~10-4)Pa。
The device's heat accumulation function is mainly realized by phase change heat accumulation aluminum plate, and this aluminum plate uses as panel, accelerates the heat of aluminum plate one side to the opposite side transmission, and inside adopts phase change material, changes the material state under the unchangeable condition of temperature and provides latent heat, to the thermal storage in heat source space, maintains the thermal stability in space inside and has showing the advantage.
The one-way heat transfer function of the device is mainly realized by the aluminum plate filled with the phase change material and the heat pipe together. The heat pipe is mainly used for transferring heat by the vapor-liquid phase change of the working liquid, has low thermal resistance and high heat conduction capability. One end of the heat pipe is connected with the phase-change heat storage aluminum plate, the other end of the heat pipe is a condensation end, when one end of the heat pipe is heated, liquid in the capillary tube is quickly vaporized, vapor flows to the other end under the power of heat diffusion, the vapor is condensed at the cold end to release heat, the liquid flows back to the evaporation end along the porous material under the capillary action, and the circulation is not stopped until the temperatures of the two ends of the heat pipe are equal (at the moment, the heat diffusion of the vapor stops). This cycle is rapid and heat can be conducted away from the heat source.
Compared with the prior art, the invention has the following beneficial effects:
1. energy conservation: the phase-change heat-storage one-way heat transfer aluminum plate, regardless of the phase-change heat-storage aluminum plate bearing the heat storage function and the heat pipe bearing the heat transfer function, stores and transfers heat energy by utilizing the phase-change principle and the characteristics of materials, does not need to be driven by other energy sources, and has obvious energy-saving effect.
2. Very high thermal conductivity: the heat pipe which is arranged in the phase-change heat-storage one-way heat transfer aluminum plate and takes charge of the heat transfer function is mainly internally heat-transferred by the vapor-liquid phase change of the working liquid, and the heat resistance is very small, so that the heat pipe has very high heat conduction capability. Compared with metals such as silver, copper, aluminum and the like, the heat pipe with unit weight can transmit heat of several orders of magnitude more, one end of the heat pipe is connected with the phase-change heat storage aluminum plate, the other end of the heat pipe is a condensation end, when one end of the heat pipe is heated, liquid in the capillary tube is rapidly vaporized, vapor flows to the other end under the power of heat diffusion and is condensed at the cold end to release heat, the liquid flows back to the evaporation end along the porous material by virtue of capillary action, the circulation is not continued until the temperatures of the two ends of the heat pipe are equal (at the moment, the heat diffusion of the vapor is stopped), the circulation is performed rapidly, and the heat can be conducted.
3. Strong heat storage capacity, and enhanced thermal stability to heat source space: compared with other materials such as concrete, metal plates and bricks, the phase change heat storage aluminum plate for bearing heat storage in the phase change heat storage unidirectional heat transfer aluminum plate is mainly internally provided with the phase change material. Because the phase change material is a substance which changes the state of the substance under the condition of constant temperature and can provide latent heat. The process of transforming physical properties is called a phase change process, and the phase change material absorbs or releases a large amount of latent heat. There is a significant advantage in maintaining thermal stability within the space for storage of heat from the heat source space.
4. The influence on the heat source is small: compare in traditional mechanical ventilation heat dissipation, the heat is collected and stored again with heat by modes such as radiation, convection current, heat conduction of normal heat in the space to phase change heat storage one-way heat transfer aluminum plate to do not influence the inside air velocity of space etc.. The influence on the heat source is small, and the device can be suitable for spaces with more dust, fine broken objects and the like.
Drawings
Fig. 1 is a perspective view of a phase change thermal storage unidirectional heat transfer device according to the present invention;
fig. 2 is a side view of a phase change thermal storage unidirectional heat transfer apparatus according to the present invention.
The reference numbers in the figures indicate:
1. the phase change heat storage aluminum plate comprises a phase change heat storage aluminum plate body, 2 heat pipes, 3 sealing silicon rubber, 4 sealing glue, 5 hollow aluminum plate bodies, 6 phase change materials, 7 pipe shells, 8 end covers, 9 working liquid, 10 pipe cores.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example 1
The phase change heat storage one-way heat transfer device comprises a phase change heat storage aluminum plate 1 and a heat pipe 2 which are connected with each other, wherein the phase change heat storage aluminum plate 1 comprises a hollow aluminum plate 5, a phase change material 6 filled in the hollow aluminum plate 5 and a sealant 4 for sealing the phase change material 6 in the hollow aluminum plate 5, and the heat pipe 2 comprises a pipe shell 7, a pipe core 10 on the inner wall of the pipe shell 7 and working liquid 9 filled in the inner cavity of the pipe core 10.
The phase change heat storage aluminum plate 1 and the heat pipe 2 are connected through heat conduction bonding sealing silicon rubber 3. One end of the heat pipe 2 is connected with the geometric center point of the phase change heat storage aluminum plate 1. The sealant 4 is any one or a mixture of polyurethane glue, organic silica gel and acrylic acid glue. The hollow aluminum plate 5 is square, the side length is 500-600mm, the thickness is 20mm, the tube length of the heat pipe 2 is 1/8-1/4 of the side length of the hollow aluminum plate 5, and the tube diameter of the heat pipe 2 is 1/5-1/3 of the tube length. The phase-change material 6 is calcium chloride aqueous solution or fatty acid, or the phase-change material 6 with proper phase-change temperature is selected according to specific application. Both ends of the heat pipe 2 are provided with end caps 8, and the end caps 8 are made of aluminum or copper.
If the heat pipe 2 is a low-temperature heat pipe, the working liquid 9 is ammonia, and the corresponding shell material is aluminum or stainless steel;
if the heat pipe 2 is a normal temperature heat pipe, the working liquid 9 is ethanol or acetone, and when the working liquid 9 is ethanol, the corresponding shell material is copper or stainless steel; when the working liquid 9 is acetone, the corresponding shell material is aluminum or copper or stainless steel;
if the heat pipe 2 is a medium-temperature heat pipe, the working liquid 9 is biphenyl or naphthalene, and when the working liquid 9 is biphenyl, the corresponding shell material is stainless steel; when the working liquid 9 is naphthalene, the corresponding shell material is aluminum or stainless steel;
if the heat pipe 2 is a high-temperature heat pipe, the working liquid 9 is potassium or sodium, and when the working liquid 9 is potassium, the corresponding shell material is stainless steel; when the working liquid 9 is sodium, the corresponding shell material is stainless steel.
The wick 10 is one of a single or multi-layer mesh wick against the wall of the tube, a sintered powder wick, an axial channeled wick, or a composite wick.
A manufacturing method of a phase change heat storage unidirectional heat transfer device comprises the following steps:
(a) drilling a hole on one side of the hollow aluminum plate 5, heating the phase change material 6 into liquid, injecting the liquid into the hollow aluminum plate 5, and then sealing the hollow aluminum plate 5 by using the sealant 4;
(b) a wick 10 is formed on the inner wall of a case 7 of a heat pipe 2, and the wick is drawn into 1.3 x (10)-1~10-4) Pa negative pressure, then filling working liquid 9, and welding and sealing the heat pipe 2 after filling;
(c) and (3) bonding the heat pipe 2 with the phase change heat storage aluminum plate 1.
Example 2
The phase change heat storage one-way heat transfer device comprises a phase change heat storage aluminum plate 1 and a heat pipe 2 which are connected with each other, wherein the phase change heat storage aluminum plate 1 comprises a hollow aluminum plate 5, a phase change material 6 filled in the hollow aluminum plate 5 and a sealant 4 for sealing the phase change material 6 in the hollow aluminum plate 5, and the heat pipe 2 comprises a pipe shell 7, a pipe core 10 on the inner wall of the pipe shell 7 and working liquid 9 filled in the inner cavity of the pipe core 10.
The indoor temperature of outdoor cabinets of various electrical equipment, such as outdoor communication cabinets and the like, can often reach 40-60 ℃, the performance of electronic devices is seriously influenced, and the outdoor cabinet has great potential safety hazards. The heat pipe 2 is arranged outside the cabinet, and the heat needs to be transmitted outwards in a single direction. If the organic fatty acid phase-change material 6 with the phase-change temperature of 35 ℃ is filled in the hollow aluminum plate 5, when the temperature inside the case exceeds 35 ℃, the phase-change material 6 can absorb heat, and then the heat is continuously dissipated to the air outside the case through the heat pipe 2 filled with ethanol and sintered with the powder pipe core 10, so that the temperature inside the case can be maintained at about 35 ℃. The size of the aluminum plate can be 500mm by 20mm, the length of the heat pipe 2 is 1/5-1/4 of the length of the aluminum plate, and the pipe diameter of the heat pipe 2 is 1/5-1/3 of the length of the heat pipe 2.
Example 3
The phase change heat storage one-way heat transfer device comprises a phase change heat storage aluminum plate 1 and a heat pipe 2 which are connected with each other, wherein the phase change heat storage aluminum plate 1 comprises a hollow aluminum plate 5, a phase change material 6 filled in the hollow aluminum plate 5 and a sealant 4 for sealing the phase change material 6 in the hollow aluminum plate 5, and the heat pipe 2 comprises a pipe shell 7, a pipe core 10 on the inner wall of the pipe shell 7 and working liquid 9 filled in the inner cavity of the pipe core 10.
The solar energy resources are rich in western high-altitude areas in China, the problems of high-temperature pipe explosion in summer, freezing at night in winter and the like are easily caused when water is used as a medium for a solar heat collector, and the solar heat collector can be combined with the device to effectively utilize solar radiation to heat air for heat supply. Heat pipe 2 is placed indoors, which requires unidirectional heat transfer inwards. If the inorganic phase change material 6 with the phase change temperature of about 50 ℃ is filled in the hollow aluminum plate 5, the heat pipe 2 filled with acetone and sintered powder pipe cores is combined to continuously transfer heat to air, and the indoor heat supply requirement can be met.
Example 4
The phase change heat storage one-way heat transfer device comprises a phase change heat storage aluminum plate 1 and a heat pipe 2 which are connected with each other, wherein the phase change heat storage aluminum plate 1 comprises a hollow aluminum plate 5, a phase change material 6 filled in the hollow aluminum plate 5 and a sealant 4 for sealing the phase change material 6 in the hollow aluminum plate 5, and the heat pipe 2 comprises a pipe shell 7, a pipe core 10 on the inner wall of the pipe shell 7 and working liquid 9 filled in the inner cavity of the pipe core 10.
The device can be used for heat dissipation on roofs or walls in hot areas in the south of China, and energy consumption of air conditioners in summer is reduced. The heat pipe 2 is arranged outdoors, and one-way heat transfer is needed to be carried out outwards. If the inorganic phase change material 6 with the phase change temperature of about 40 ℃ is filled in the aluminum plate, the heat pipe 2 filled with methanol and provided with the axial channel type pipe core is combined to continuously radiate heat to outdoor air, so that the surface temperature of a roof or an outer wall can be maintained below 40 ℃. The size of the hollow aluminum plate 5 is 600mm x 20mm, the length of the heat pipe 2 is 1/8-1/4 of the side length of the hollow aluminum plate 5, and the pipe diameter of the heat pipe 2 is 1/5-1/3 of the length of the heat pipe 2.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims (5)

1. The phase change heat storage one-way heat transfer device is characterized by comprising a phase change heat storage aluminum plate (1) and a heat pipe (2) which are connected with each other, wherein the phase change heat storage aluminum plate (1) comprises a hollow aluminum plate (5), a phase change material (6) filled in the hollow aluminum plate (5) and a sealant (4) for sealing the phase change material (6) in the hollow aluminum plate (5), and the heat pipe (2) comprises a pipe shell (7), a pipe core (10) on the inner wall of the pipe shell (7) and working liquid (9) filled in the inner cavity of the pipe core (10);
the phase change heat storage aluminum plate (1) is connected with the heat pipe (2) through heat conduction bonding sealing silicon rubber (3);
the phase-change material (6) is calcium chloride aqueous solution or fatty acid;
the tube core (10) is one of a single-layer or multi-layer mesh core, a sintered powder tube core, an axial channel type tube core and a combined tube core which are tightly attached to the tube wall;
the hollow aluminum plate (5) is square, the side length is 500-600mm, the thickness is 20mm, the tube length of the heat pipe (2) is 1/8-1/4 of the side length of the hollow aluminum plate (5), and the tube diameter of the heat pipe (2) is 1/5-1/3 of the tube length;
both ends of the heat pipe (2) are provided with end covers (8), and the end covers (8) are made of aluminum or copper.
2. A phase-change thermal one-way heat transfer device according to claim 1, wherein one end of the heat pipe (2) is connected to a geometric center point of the aluminum phase-change thermal storage plate (1).
3. The phase change thermal storage unidirectional heat transfer device according to claim 1, wherein the sealant (4) is any one or a mixture of polyurethane glue, organic silica gel and acrylic glue.
4. A method of manufacturing a phase change thermal storage unidirectional heat transfer apparatus as claimed in claim 1, comprising the steps of:
(a) drilling a hole on one side of the hollow aluminum plate (5), heating the phase change material (6) into liquid, injecting the liquid into the hollow aluminum plate (5), and sealing the hollow aluminum plate (5) by using the sealant (4);
(b) manufacturing a tube core (10) on the inner wall of a tube shell (7) of the heat pipe (2), pumping the tube into negative pressure, then filling working liquid (9), and welding and sealing the heat pipe (2) after filling;
(c) and (3) bonding the heat pipe (2) with the phase change heat storage aluminum plate (1).
5. The method for manufacturing a phase-change thermal storage unidirectional heat transfer device according to claim 4, wherein in the step (b): the pressure after the negative pressure is pumped in the tube is 1.3 x (10)-1~10-4)Pa。
CN201910531651.6A 2019-06-19 2019-06-19 Phase-change heat-storage unidirectional heat transfer device and manufacturing method thereof Active CN110319720B (en)

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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

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CN2485699Y (en) * 2001-04-24 2002-04-10 南京赫特节能环保有限公司 Phase changing heat radiator for fanless desk computer
CN2543011Y (en) * 2002-04-16 2003-04-02 鸿富锦精密工业(深圳)有限公司 Heat-pipe structure
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CN205505811U (en) * 2015-12-31 2016-08-24 温州市诸葛汽车配件有限公司 Cold radiating block of surrounding type face
CN208026113U (en) * 2018-04-04 2018-10-30 中山莱通金属科技有限公司 Temperature-uniforming plate with support column

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