A solid-state compression card refrigeration system and method based on an azeotropic refrigerant adaptive heat pipe

Abstract

The present invention relates to the technical fields of heat pipes and refrigeration, and particularly to a solid-state compression card refrigeration system and method based on a non-azeotropic working fluid adaptive heat pipe, including a solid-state compression card device and a heat exchange fluid pipe network connected to the solid-state compression card device; the solid-state compression card device includes a capillary heat pipe, a compression cavity, and a pressure head. The compression cavity is filled with a compression card material, and a number of capillary heat pipes are uniformly distributed in the compression card material. The pressure head is arranged above the compression card material, and the tops of the number of capillary heat pipes all extend into the pressure head; the pressure head can periodically load / unload the compression card material, and the compression card material generates heat / cold. The generated heat / cold is extracted and transmitted to the heat exchange fluid pipe network through the capillary heat pipe. The present invention applies the heat pipe technology to the solid-state compression card refrigeration system, significantly solves the core problems such as low heat exchange efficiency and serious heat hysteresis in the solid-state compression card refrigeration technology, shortens the system operation cycle, significantly improves the refrigeration cycle efficiency and stability, and increases the refrigeration capacity of the system.

Description

Technical Field

[0001] The present invention relates to the technical fields of heat pipes and refrigeration, and particularly to a solid-state compression refrigeration system and method based on a non-azeotropic working fluid adaptive heat pipe. Background Art

[0002] As a new type of solid-state refrigeration technology, solid-state compression refrigeration technology has attracted much attention in recent years due to its environmental protection, high efficiency, and low energy consumption characteristics. Its core principle is to utilize the pyroelectric effect accompanied by the reversible phase change of materials during stress loading / unloading, and to achieve heat absorption and release through the entropy change of the materials themselves. However, in practical applications, the stress loading / unloading rate needs to be synchronized with the material phase change rate and heat transfer rate, otherwise it will lead to an increase in the thermal hysteresis effect. For example, during high-frequency cycling, the heat inside the material may not be able to be exported in time, resulting in a decrease in the temperature change amplitude. At the same time, the contact thermal resistance between the material and the heat transfer structure will also significantly reduce the heat transfer efficiency. The heat transfer efficiency is one of the key bottlenecks restricting its performance improvement and practical application.

[0003] With its ultra-high heat conduction efficiency, temperature uniformity, passive operation, and compact design, the heat pipe has become an ideal choice for enhancing heat transfer. The heat pipe technology uses the phase change cycle of the working fluid absorbing heat and evaporating in the evaporation section and releasing heat and condensing in the condensation section to transfer heat through latent heat. The latent heat transfer capacity during the phase change process is much higher than that of simple heat conduction or convection. However, ordinary heat pipes are affected by the installation direction and can only transfer heat unidirectionally, and cannot match the cold and heat alternating changes during loading / unloading of the solid-state compression system. This application uses a wick structure with a capillary structure and a non-azeotropic mixture working fluid with temperature slip characteristics to develop a heat pipe that can transfer heat bidirectionally to adapt to the cold and heat alternating changes during loading / unloading of the solid-state compression system, providing a new method for improving the heat transfer efficiency of the compression refrigeration technology. It is expected to solve the problem of low heat transfer efficiency in the solid-state compression system, shorten the system operation cycle, improve the refrigeration cycle efficiency of the solid-state compression refrigeration system, and increase the system refrigeration capacity. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a solid-state compression refrigeration system and method based on a non-azeotropic working fluid adaptive heat pipe, which can shorten the system operation cycle, significantly improve the refrigeration cycle efficiency and stability, and increase the system refrigeration capacity.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A solid-state compression refrigeration system based on a non-azeotropic working fluid adaptive heat pipe includes a solid-state compression device and a heat exchange fluid pipe network connected to the solid-state compression device;

[0007] The solid-state pressure carding device includes a capillary heat pipe, a compression chamber, and a pressure head. The compression chamber is filled with a pressure carding material, and a number of capillary heat pipes are evenly distributed in the pressure carding material. The pressure head is arranged above the pressure carding material, and the tops of the number of capillary heat pipes all extend into the pressure head;

[0008] The pressure head can periodically load / unload the pressure carding material, and the pressure carding material generates heat / cold. The generated heat / cold is extracted and transmitted to the heat exchange fluid pipe network through the capillary heat pipe;

[0009] The heat exchange fluid pipe network includes a heat extraction fluid pipeline and a heat extraction fluid pipeline. The heat exchange fluid in the heat exchange fluid pipe network can flow alternately between the heat extraction fluid pipeline and the heat extraction fluid pipeline.

[0010] Preferably, the heat extraction fluid pipeline includes a first three-way valve, a second three-way valve, a second butterfly valve, a high-temperature liquid storage tank, a second circulation pump, and a high-temperature heat exchanger; the outlet of the solid-state pressure carding device is connected to the inlet of the first three-way valve, the second outlet of the first three-way valve is connected to the inlet of the second butterfly valve, the outlet of the second butterfly valve is connected to the inlet of the high-temperature liquid storage tank, the outlet of the high-temperature liquid storage tank is connected to the inlet of the second circulation pump, the outlet of the second circulation pump is connected to the inlet of the high-temperature heat exchanger, the outlet of the high-temperature heat exchanger is connected to the second inlet of the second three-way valve, and the outlet of the second three-way valve is connected to the inlet of the solid-state pressure carding device.

[0011] Preferably, the heat extraction fluid pipeline includes a first three-way valve, a first butterfly valve, a low-temperature liquid storage tank, a first circulation pump, a low-temperature heat exchanger, and a second three-way valve; the outlet of the solid-state pressure carding device is connected to the inlet of the first three-way valve, the first outlet of the first three-way valve is connected to the inlet of the first butterfly valve, the outlet of the first butterfly valve is connected to the inlet of the low-temperature liquid storage tank, the outlet of the low-temperature liquid storage tank is connected to the inlet of the first circulation pump, the outlet of the first circulation pump is connected to the inlet of the low-temperature heat exchanger, the outlet of the low-temperature heat exchanger is connected to the first inlet of the second three-way valve, and the outlet of the second three-way valve is connected to the inlet of the solid-state pressure carding device.

[0012] Preferably, the capillary heat pipe includes azeotropic refrigerant, a wick, and a shell; the inner wall of the shell is provided with a wick with a capillary structure, and the wick is filled with azeotropic refrigerant.

[0013] Preferably, the azeotropic refrigerant includes but is not limited to azeotropic refrigerant mixtures such as R290 / R1234ze(E), R134a / R1234ze(E), etc. that can have temperature glide within a temperature range.

[0014] The present invention also provides a solid-state pressure carding refrigeration method based on an azeotropic refrigerant self-adaptive heat pipe. This refrigeration method is implemented by using the above-mentioned solid-state pressure carding refrigeration system based on an azeotropic refrigerant self-adaptive heat pipe, and includes the following steps:

[0015] Heat extraction process: When the ram compresses the clamping material, the clamping material releases heat, the temperature rises, and the capillary heat pipe transfers the generated heat out. The first butterfly valve closes, the second butterfly valve opens, and the second circulation pump starts. The heat exchange fluid flows above the ram to absorb the heat transferred by the capillary heat pipe, and then flows through the first three-way valve, the second butterfly valve, the high-temperature liquid storage tank, the second circulation pump, and the high-temperature heat exchanger to release the heat and then flows back to the solid clamping device.

[0016] Cooling extraction process: When the ram releases pressure and the clamping material expands to absorb heat and the temperature drops, the capillary heat pipe transfers the generated cold out. The second butterfly valve closes, the first butterfly valve opens, and the first circulation pump starts. The heat exchange fluid flows above the ram to absorb the cold transferred by the capillary heat pipe, and then flows through the first three-way valve, the first butterfly valve, the low-temperature liquid storage tank, the first circulation pump, and the low-temperature heat exchanger to release the cold and then flows back to the solid clamping device.

[0017] Preferably, it further includes:

[0018] Heat extraction process: The bottom of the capillary heat pipe is the hot end (evaporation end), and the upper part is the cold end (condensation end); the hot end wick absorbs the liquid working medium. Due to the heat released by the compression of the clamping material, the temperature rises. Under the heating of the clamping material, the low-boiling component A evaporates first, and then the high-boiling component B also starts to evaporate. At this time, the concentration of A in the steam is relatively high; as the evaporation continues, the proportion of the high-boiling component B in the liquid working medium increases, and the evaporation temperature of the non-azeotropic working medium gradually rises to the highest temperature at the hot end; due to the continuous evaporation of the liquid working medium, the pressure at the hot end increases, and the high-pressure steam generated by evaporation flows to the colder end with lower pressure under the drive of the pressure; when the steam reaches the cold end, the high-boiling component B condenses first due to the temperature drop and releases the latent heat. Part of the low-boiling component A remains in the gaseous state, part of the low-boiling component A starts to condense slowly, and the concentration of A in the remaining steam increases, and a lower temperature is required to completely condense. The condensed liquid working medium flows back to the hot end through the wick to supplement the liquid working medium consumed by evaporation.

[0019] Cooling process: The hot and cold ends of the capillary heat pipe are reversed. The original cold end becomes the hot end (evaporation end), and the original hot end becomes the cold end (condensation end). Due to the expansion of the pressure-caloric material to generate cold, the temperature of the original hot end drops suddenly and becomes the cold end. Since the temperature decreases, the liquid working medium no longer continues to evaporate. Instead, it absorbs cold and condenses, and the pressure decreases. The original cold end maintains a constant temperature. The previously evaporated steam continues to condense and liquefy. After most of the high-boiling component B condenses, the steam is rich in the low-boiling component A. Due to the lower pressure below, the steam rich in the low-boiling component A flows to the new cold end and condenses. The condensed liquid working medium overcomes gravity and flows to the new hot end through the wick with a capillary structure. At the new hot end, due to the lower temperature, the low-boiling component A evaporates first, and then part of the high-boiling component B evaporates, and the concentration of the low-boiling component A in the steam increases. As the low-boiling component A evaporates, the proportion of the high-boiling component B in the liquid working medium increases, and the evaporation temperature gradually rises to the current upper limit of the hot end temperature, and the steam pressure gradually increases. Due to the continuous evaporation of the liquid working medium, the pressure at the new hot end increases, and the high-pressure steam generated by evaporation flows to the new cold end with a lower pressure under the drive of the pressure. Since the temperature of the new cold end is lower than the condensation temperature of all components, the high-boiling component B in the steam flowing to the new cold end first condenses and liquefies, and then the low-boiling component A also condenses and liquefies at a low temperature. The condensed liquid working medium overcomes gravity and flows back to the new hot end through the wick to supplement the working medium consumed by evaporation and form a reverse cycle.

[0020] After the cooling process ends, the pressure-caloric material is loaded again to release heat, the temperature of the material rises, the hot and cold ends are reversed again, and the zeotropic working medium is redistributed again, repeating the above heat-taking process.

[0021] By adopting the above technical solution: Utilize the high heat transfer efficiency of the heat pipe to enhance the heat exchange efficiency of the pressure-caloric system; in the heat pipe, utilize the temperature glide characteristic of the zeotropic working medium and the symmetric capillary structure to dynamically switch the evaporation end and the condensation end during the alternation of the hot and cold ends, and realize efficient heat transfer through the pressure difference to drive the steam flow and capillary reflux. This characteristic can quickly match the hot and cold alternation of the pressure-caloric material during the loading / unloading process and quickly export the generated heat / cold.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention uses the heat pipe technology to enhance the heat exchange of the solid-state pressure-caloric refrigeration system, improves the heat exchange efficiency of the solid-state pressure-caloric system, shortens the system operation cycle, and increases the refrigerating capacity of the system.

[0024] 2. The heat exchange working medium used in the heat pipe of the present invention is a zeotropic mixture with temperature glide characteristics, which can more flexibly match the temperature change of the pressure-caloric material during rapid loading / unloading.

[0025] 3. The capillary heat pipe used in the present invention relies on capillary action and steam pressure difference to drive the working medium circulation, and the system is simple and reliable.

[0026] 4. The heat pipe adopted in the present invention can reach steady-state heat transfer within several seconds. The fast response characteristic of the heat pipe can match the stress loading / unloading frequency of the press-fit material and reduce heat accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the refrigeration system of the present invention;

[0028] Figure 2 is a schematic diagram of the working state of the refrigeration system of the present invention; wherein, Figure 2 a is a schematic diagram of the heat extraction process of the refrigeration system; Figure 2 b is a schematic diagram of the cold extraction process of the refrigeration system;

[0029] Figure 3 is the T-s diagram of the non-azeotropic working fluid in the capillary heat pipe of the present invention.

[0030] In the figure: 1 - solid-state press-fit device, 2 - first three-way valve, 3 - first butterfly valve, 4 - low-temperature liquid storage tank, 5 - first circulation pump, 6 - low-temperature heat exchanger, 7 - second three-way valve, 8 - second butterfly valve, 9 - high-temperature liquid storage tank, 10 - second circulation pump, 11 - high-temperature heat exchanger;

[0031] capillary heat pipe, 1-2 - compression cavity, 1-3 - head, 1-4 - press-fit material;

[0032] 1-1-1 - non-azeotropic working fluid, 1-1-2 - wick, 1-1-3 - tube shell. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, so that those skilled in the art can better understand the advantages and features of the present invention, and thus make a clearer definition of the protection scope of the present invention. The embodiments described in the present invention are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] Referring to Figure 1 , a solid-state press-fit refrigeration system based on a non-azeotropic working fluid adaptive heat pipe, comprising a solid-state press-fit device 1 and a heat exchange fluid pipe network connected to the solid-state press-fit device 1;

[0035] The solid-state pressure carding device 1 includes a capillary heat pipe 1-1, a compression chamber 1-2, and a pressure head 1-3. The compression chamber 1-2 is filled with a pressure carding material 1-4, and a number of capillary heat pipes 1-1 are evenly distributed in the pressure carding material 1-4. The pressure head 1-3 is arranged above the pressure carding material 1-4, and the tops of a number of capillary heat pipes 1-1 all extend into the pressure head 1-3;

[0036] The pressure head 1-3 can periodically load / unload the pressure carding material 1-4, and the pressure carding material 1-4 generates heat / cold. The generated heat / cold is extracted by the capillary heat pipe 1-1 and transmitted to the heat exchange fluid pipe network;

[0037] The heat exchange fluid pipe network includes a heat extraction fluid pipeline and a cold extraction fluid pipeline, and the heat exchange fluid in the heat exchange fluid pipe network can flow alternately between the heat extraction fluid pipeline and the cold extraction fluid pipeline.

[0038] In this embodiment, the control of the heat exchange fluid pipe network is achieved by switching valves. When the pressure carding material 1-4 in the compression chamber 1-2 is compressed to generate heat, it is extracted by the capillary heat pipe 1-1. The heat extraction fluid pipeline is opened and the cold extraction fluid pipeline is closed, and the generated heat is recovered by the heat extraction fluid in the heat extraction fluid pipeline; when the pressure carding material 1-4 in the compression chamber 1-2 expands to generate cold, it is extracted by the capillary heat pipe 1-1. The cold extraction fluid pipeline is opened and the heat extraction fluid pipeline is closed, and the generated cold is recovered by the cold extraction fluid in the cold extraction fluid pipeline.

[0039] Specifically, the capillary heat pipe 1-1 includes azeotropic working fluid 1-1-1, a wick 1-1-2, and a shell 1-1-3; the inner wall of the shell 1-1-3 is provided with a wick 1-1-2 with a capillary structure, and the wick 1-1-2 is filled with an azeotropic working fluid 1-1-1.

[0040] Among them, the azeotropic working fluid 1-1-1 includes, but is not limited to, non-azeotropic mixed working fluids such as R290 / R1234ze(E), R134a / R1234ze(E), etc. that can have a temperature glide within a temperature range.

[0041] In this embodiment, in the capillary heat pipe 1-1, by utilizing the temperature glide characteristic of the azeotropic working fluid 1-1-1 and the capillary structure of the wick 1-1-2, the evaporation end and the condensation end are dynamically switched when the hot and cold ends are alternated. The steam flow is driven by the pressure difference, and the liquid flow is driven by gravity and capillary reflux to achieve efficient heat transfer. This heat pipe can adapt to a dynamically changing temperature field and is suitable for this kind of pressure carding system that needs to frequently switch the heat flow direction.

[0042] In the above embodiment, the heat extraction fluid pipeline mainly extracts the heat generated by compressing the pressure carding material 1-4 and supplies it to the user. Specifically, such as Figure 2As shown in Fig. a, the heat extraction fluid pipeline includes a first three-way valve 2, a second three-way valve 7, a second butterfly valve 8, a high-temperature liquid storage tank 9, a second circulation pump 10 and a high-temperature heat exchanger 11; the outlet of the solid-state pressure clamping device 1 is connected to the inlet of the first three-way valve 2, the second outlet of the first three-way valve 2 is connected to the inlet of the second butterfly valve 8, the outlet of the second butterfly valve 8 is connected to the inlet of the high-temperature liquid storage tank 9, the outlet of the high-temperature liquid storage tank 9 is connected to the inlet of the second circulation pump 10, the outlet of the second circulation pump 10 is connected to the inlet of the high-temperature heat exchanger 11, the outlet of the high-temperature heat exchanger 11 is connected to the second inlet of the second three-way valve 7, and the outlet of the second three-way valve 7 is connected to the inlet of the solid-state pressure clamping device 1.

[0043] In the above embodiment, the cold extraction fluid pipeline mainly extracts the cold generated by the expansion of the pressure clamping material 1-4 and supplies it to the user. Specifically, as Figure 2 As shown in Fig. b, the cold extraction fluid pipeline includes a first three-way valve 2, a first butterfly valve 3, a low-temperature liquid storage tank 4, a first circulation pump 5, a low-temperature heat exchanger 6 and a second three-way valve 7; the outlet of the solid-state pressure clamping device 1 is connected to the inlet of the first three-way valve 2, the first outlet of the first three-way valve 2 is connected to the inlet of the first butterfly valve 3, the outlet of the first butterfly valve 3 is connected to the inlet of the low-temperature liquid storage tank 4, the outlet of the low-temperature liquid storage tank 4 is connected to the inlet of the first circulation pump 5, the outlet of the first circulation pump 5 is connected to the inlet of the low-temperature heat exchanger 6, the outlet of the low-temperature heat exchanger 6 is connected to the first inlet of the second three-way valve 7, and the outlet of the second three-way valve 7 is connected to the inlet of the solid-state pressure clamping device 1.

[0044] A solid-state pressure clamping refrigeration method based on a non-azeotropic working fluid adaptive heat pipe, which is realized by using the above-mentioned solid-state pressure clamping refrigeration system based on a non-azeotropic working fluid adaptive heat pipe, includes the following steps:

[0045] As Figure 2 As shown in Fig. a, during the heat extraction process: when the press head 1-3 compresses the pressure clamping material 1-4, the pressure clamping material 1-4 releases heat and the temperature rises. The capillary heat pipe 1-1 transfers the generated heat out. The first butterfly valve 3 is closed, the second butterfly valve 8 is opened, and the second circulation pump 10 is started. The heat exchange fluid flows above the press head 1-3 to absorb the heat transferred by the capillary heat pipe 1-1, and then flows through the first three-way valve 2, the second butterfly valve 8, the high-temperature liquid storage tank 9, the second circulation pump 10, and the high-temperature heat exchanger 11 to release the heat and then flows back to the solid-state pressure clamping device 1.

[0046] Specifically, as Figure 2As shown in Figure a, the bottom of the capillary heat pipe 1-1 is the hot end (evaporation end), and the upper part is the cold end (condensation end); the heat pipe core 1-1-2 at the hot end absorbs the liquid working medium. Due to the heat released by the compression of the press-fit material 1-4, the temperature rises. Under the heating of the press-fit material 1-4, the low-boiling component A evaporates preferentially, and then the high-boiling component B also starts to evaporate. At this time, the concentration of A in the steam is relatively high. As the evaporation continues, the proportion of the high-boiling component B in the liquid working medium increases, and the evaporation temperature of the zeotropic working medium 1-1-1 gradually rises to the highest temperature at the hot end. Due to the continuous evaporation of the liquid working medium, the pressure at the hot end increases, and the high-pressure steam generated by evaporation flows towards the cold end with a lower pressure under the drive of the pressure. When the steam reaches the cold end, the high-boiling component B condenses preferentially due to the temperature drop and releases the latent heat. Part of the low-boiling component A remains in the gaseous state, part of the low-boiling component A starts to condense slowly, and the concentration of A in the remaining steam increases, and a lower temperature is required to completely condense. The condensed liquid working medium flows back to the hot end through the pipe core 1-1-2 to supplement the liquid working medium consumed by evaporation.

[0047] As Figure 2 As shown in Figure b, for the cold extraction process: when the press head 1-3 releases pressure and the press-fit material 1-4 expands, it absorbs heat and the temperature drops. The capillary heat pipe 1-1 transfers the generated cold quantity. The second butterfly valve 8 closes, the first butterfly valve 3 opens, and the first circulation pump 5 starts. The heat exchange fluid flows above the press head 1-3 to absorb the cold quantity transferred from the capillary heat pipe 1-1, and then flows through the first three-way valve 2, the first butterfly valve 3, the low-temperature liquid storage tank 4, the first circulation pump 5, and the low-temperature heat exchanger 6 to release the cold quantity and then flows back to the solid-state press-fit device 1.

[0048] Specifically, as Figure 2As shown in Figure b, the hot and cold ends of the capillary heat pipe 1-1 are reversed. The original cold end becomes the hot end (evaporation end), and the original hot end becomes the cold end (condensation end). Since the pressure clamping material 1-4 expands to generate cold, the temperature of the material drops, and the temperature of the original hot end drops suddenly and becomes the cold end. At this time, due to the temperature decrease, the liquid working medium cannot continue to evaporate, resulting in a decrease in vapor concentration and pressure. The original cold end maintains a constant temperature, and the previously evaporated steam continues to condense and liquefy. The low-boiling component A slowly condenses. At this time, the steam is rich in the low-boiling component A. Since there is no evaporation below, there is a pressure difference, and the steam rich in the low-boiling component A flows to the new cold end to condense. After condensation, the liquid working medium flows through the wick 1-1-2 against gravity to the new hot end. At the new hot end, due to the lower temperature, the low-boiling component A evaporates first, and then part of the high-boiling component B evaporates, and the concentration of the low-boiling component A in the steam increases. As the low-boiling component A evaporates, the proportion of the high-boiling component B in the liquid working medium increases, and the evaporation temperature gradually rises to the current upper limit of the hot end temperature, and the steam pressure gradually increases. Due to the continuous evaporation of the liquid working medium, the pressure at the new hot end increases, and the high-pressure steam generated by evaporation flows to the new cold end with a lower pressure under the drive of the pressure. Since the temperature of the new cold end is lower than the condensation temperature of all components, the high-boiling component B in the steam flowing to the new cold end condenses and liquefies first, and then the low-boiling component A also condenses and liquefies at a low temperature. After condensation, the liquid working medium flows back to the new hot end through the wick 1-1-2 against gravity to supplement the working medium consumed by evaporation and form a reverse cycle.

[0049] After the cooling process ends, the pressure clamping material 1-4 is loaded again to release heat, the temperature of the material rises, the hot and cold ends are reversed again, and the zeotropic working medium 1-1-1 is redistributed again, repeating the above heat extraction process.

[0050] In summary, the present invention applies the heat pipe technology to the solid-state pressure clamping refrigeration system, which can significantly solve the core problems such as low heat exchange efficiency and serious thermal hysteresis in the solid-state pressure clamping refrigeration technology, shorten the system operation cycle, significantly improve the refrigeration cycle efficiency and stability, and increase the refrigeration capacity of the system.

[0051] The descriptions and practices disclosed in the present invention are easy to think and understand for those of ordinary skill in the art. Without departing from the principle of the present invention, several improvements and refinements can be made. Therefore, the modifications or improvements made without departing from the spirit of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A solid-state compression card refrigeration system based on a non-azeotropic working fluid adaptive heat pipe, characterized in that: It comprises a solid-state pressing device (1) and a heat exchange fluid pipe network connected to the solid-state pressing device (1); The solid-state compression device (1) comprises a capillary heat pipe (1-1), a compression chamber (1-2) and a pressure head (1-3); the compression chamber (1-2) is filled with a compression material (1-4), and a plurality of capillary heat pipes (1-1) are evenly distributed in the compression material (1-4); the pressure head (1-3) is arranged above the compression material (1-4), and the tops of the plurality of capillary heat pipes (1-1) extend into the pressure head (1-3); The pressure head (1-3) is capable of periodically loading / unloading the pressing material (1-4); the pressing material (1-4) generates heat / cold, and the generated heat / cold is extracted and transmitted to the heat exchange fluid network through the capillary heat pipe (1-1); The heat exchange fluid pipeline network includes a hot fluid pipeline and a cold fluid pipeline, and the heat exchange fluid in the heat exchange fluid pipeline network can flow alternately between the hot fluid pipeline and the cold fluid pipeline; The capillary heat pipe (1-1) comprises a non-azeotropic working fluid (1-1-1), a tube core (1-1-2) and a tube shell (1-1-3); the inner wall of the tube shell (1-1-3) is provided with a tube core (1-1-2) with a capillary structure, and the tube core (1-1-2) is filled with the non-azeotropic working fluid (1-1-1); The non-azeotropic working fluid (1-1-1) is a non-azeotropic mixed working fluid that can undergo temperature glide within a temperature range.

2. A solid state compression card refrigeration system based on a non-azeotropic working fluid adaptive heat pipe according to claim 1, characterized in that: The heat extraction fluid pipeline comprises a first three-way valve (2), a second three-way valve (7), a second butterfly valve (8), a high-temperature liquid storage tank (9), a second circulation pump (10) and a high-temperature heat exchanger (11); the outlet of the solid-state compression device (1) is connected to the inlet of the first three-way valve (2), the second outlet of the first three-way valve (2) is connected to the inlet of the second butterfly valve (8), the outlet of the second butterfly valve (8) is connected to the inlet of the high-temperature liquid storage tank (9), the outlet of the high-temperature liquid storage tank (9) is connected to the inlet of the second circulation pump (10), the outlet of the second circulation pump (10) is connected to the inlet of the high-temperature heat exchanger (11), the outlet of the high-temperature heat exchanger (11) is connected to the second inlet of the second three-way valve (7), and the outlet of the second three-way valve (7) is connected to the inlet of the solid-state compression device (1).

3. The solid-state compression card refrigeration system based on non-azeotropic working fluid adaptive heat pipe according to claim 1, characterized in that: The cold fluid pipeline comprises a first three-way valve (2), a first butterfly valve (3), a low-temperature liquid storage tank (4), a first circulation pump (5), a low-temperature heat exchanger (6) and a second three-way valve (7); the outlet of the solid-state pressing device (1) is connected to the inlet of the first three-way valve (2), the first outlet of the first three-way valve (2) is connected to the inlet of the first butterfly valve (3), the outlet of the first butterfly valve (3) is connected to the inlet of the low-temperature liquid storage tank (4), the outlet of the low-temperature liquid storage tank (4) is connected to the inlet of the first circulation pump (5), the outlet of the first circulation pump (5) is connected to the inlet of the low-temperature heat exchanger (6), the outlet of the low-temperature heat exchanger (6) is connected to the first inlet of the second three-way valve (7), and the outlet of the second three-way valve (7) is connected to the inlet of the solid-state pressing device (1).

4. A solid-state compression card refrigeration method based on a non-azeotropic working fluid adaptive heat pipe, the refrigeration method is implemented by a solid-state compression card refrigeration system based on a non-azeotropic working fluid adaptive heat pipe according to any one of claims 1 to 3, characterized in that: The steps include: Heat extraction process: when the pressure head (1-3) compresses the compression material (1-4), the compression material (1-4) releases heat and the temperature rises. The capillary heat pipe (1-1) transfers the generated heat. The first butterfly valve (3) is closed, the second butterfly valve (8) is opened, the second circulation pump (10) is started, and the heat exchange fluid flows through the top of the pressure head (1-3) to absorb the heat transferred from the capillary heat pipe (1-1). The heat exchange fluid then flows through the first three-way valve (2), the second butterfly valve (8), the high-temperature liquid storage tank (9), the second circulation pump (10), and the high-temperature heat exchanger (11) to release the heat and flow back to the solid-state compression device (1). Cooling process: when the pressure head (1-3) releases the pressure, the compression material (1-4) absorbs heat when it expands, the temperature drops, and the capillary heat pipe (1-1) transmits the generated cold. The second butterfly valve (8) is closed, the first butterfly valve (3) is opened, the first circulation pump (5) is started, and the heat exchange fluid flows through the top of the pressure head (1-3) to absorb the cold transmitted by the capillary heat pipe (1-1), and then flows through the first three-way valve (2), the first butterfly valve (3), the low-temperature liquid storage tank (4), the first circulation pump (5), and the low-temperature heat exchanger (6) to release the cold and flow back to the solid-state compression device (1).

5. The solid-state compression card refrigeration method based on non-azeotropic working fluid adaptive heat pipe according to claim 4, characterized in that: Also includes: Heat extraction process: The bottom of the capillary heat pipe (1-1) is the hot end, and the top is the cold end; the hot end tube core (1-1-2) absorbs the liquid working fluid, and the temperature rises due to the compression and heat release of the compression material (1-4). Under the heating of the compression material (1-4), the low boiling point component A evaporates first, and then the high boiling point component B also begins to evaporate. At this time, the concentration of A in the steam is relatively high; as the evaporation continues, the proportion of the high boiling point component B in the liquid working fluid increases, and the evaporation temperature of the non-azeotropic working fluid (1-1-1) gradually increases to the highest temperature at the hot end. Temperature; As the liquid working medium continues to evaporate, the pressure at the hot end increases, and the high-pressure steam generated by evaporation flows to the cold end with lower pressure under the drive of pressure; when the steam reaches the cold end, the high-boiling point component B condenses first due to the decrease in temperature, releasing latent heat, and a part of the low-boiling point component A is retained in the gaseous state, and a part of the low-boiling point component A begins to condense slowly. The concentration of A in the remaining steam increases, and a lower temperature is required for complete condensation. The condensed liquid working medium flows back to the hot end through the tube core (1-1-2) to replenish the liquid working medium consumed by evaporation; Cooling process: the hot and cold ends of the capillary heat pipe (1-1) are reversed, the original cold end becomes the hot end, and the original hot end becomes the cold end; due to the expansion of the compression material (1-4) to generate cold energy, the temperature of the original hot end suddenly drops and becomes the cold end, and due to the temperature drop, the liquid working medium no longer continues to evaporate, but absorbs cold energy and condenses, and the pressure decreases; the temperature of the original cold end remains unchanged, and the previously evaporated steam continues to condense and liquefy. After most of the high-boiling point component B is condensed, the steam is rich in low-boiling point component A. Due to the lower pressure below, the steam rich in low-boiling point component A flows to the new cold end for condensation, and the condensed liquid working medium overcomes gravity and flows to the new hot end through the tube core (1-1-2) with a capillary structure; at the new hot end, due to the lower temperature, the low-boiling point component A evaporates first The high-boiling-point component B evaporates, and then part of the high-boiling-point component B evaporates, and the concentration of the low-boiling-point component A in the steam increases; as the low-boiling-point component A evaporates, the proportion of the high-boiling-point component B in the liquid working fluid increases, the evaporation temperature gradually rises to the current upper limit of the hot end temperature, and the steam pressure gradually increases; as the liquid working fluid continues to evaporate, the pressure of the new hot end increases, and the high-pressure steam generated by evaporation flows to the new cold end with a lower pressure driven by the pressure; since the temperature of the new cold end is lower than the condensation temperature of all components, the high-boiling-point component B in the steam flowing to the new cold end is condensed and liquefied first, and then the low-boiling-point component A is also condensed and liquefied at a low temperature; the condensed liquid working fluid overcomes gravity and flows back to the new hot end through the tube core (1-1-2), replenishing the working fluid consumed by evaporation to form a reverse cycle; After the cooling process is completed, the compression material (1-4) is loaded again to release heat, the material temperature rises, the hot and cold ends are reversed again, the non-azeotropic working fluid (1-1-1) is redistributed again, and the above heat removal process is repeated.

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