Cold and heat continuous supply system of heat pipe heat exchanger

Abstract

The utility model discloses a cold and heat continuous supply system of a heat pipe exchanger. The cold and heat continuous supply system comprises an evaporator, a condenser, a first working medium circulating system and a second working medium circulating system, the first working medium circulating system comprises a compressor, a first working medium compressed by the compressor is conveyed into the evaporator for heat exchange with a second working medium after passing through the condenser and simultaneously exchanging heat with the second working medium and part of the first working medium conveyed into the compressor, and the first working medium discharged by the evaporator flows back to the compressor; the second working medium circulating system comprises a fan and heat utilization equipment, a second working medium discharged by the fan passes through the heat utilization equipment and then is conveyed into the evaporator to be subjected to heat exchange, precooling, cooling and preheating, and the second working medium discharged by the evaporator is subjected to heat exchange and temperature rise by the condenser and then flows back to the fan. The heat pipe heat exchanger cold and heat continuous supply system can reduce heat transfer irreversible loss of heat exchange temperature difference.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchange, and in particular relates to a heat pipe heat exchanger cold and hot continuous supply system. Background Art

[0002] Heat pump drying technology utilizes the principle of a refrigeration heat pump, exchanging moisture and heat between the hot air from the condenser and the material in the drying chamber. The dry hot air becomes moist hot air, which then enters the evaporator for cooling and dehumidification. The dehumidified air is then reheated by the condenser to dry hot air before returning to the drying chamber, drying and dehydrating the material. However, during this heat exchange process, the irreversible heat transfer losses due to the temperature difference are significant. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention proposes a heat pipe heat exchanger cooling and heating continuous supply system that can reduce the irreversible heat transfer loss caused by the heat exchange temperature difference.

[0005] The heat pipe heat exchanger cold and hot supply system of the embodiment of the utility model includes an evaporator, a condenser, a first working fluid circulation system and a second working fluid circulation system;

[0006] The first working medium circulation system includes a compressor, the first working medium compressed by the compressor is cooled by the condenser and then transported to the evaporator for heat exchange, and the first working medium discharged from the evaporator flows back to the compressor;

[0007] The second working medium circulation system includes a fan and a heat-using device. The second working medium discharged from the fan is transported to the evaporator for heat exchange after passing through the heat-using device. The second working medium discharged from the evaporator is returned to the fan after heat exchange in the condenser.

[0008] The condenser has a first heat pipe heat exchange unit and a second heat pipe heat exchange unit. The first working medium compressed by the compressor is heat exchanged with the second working medium flowing from the evaporator to the fan through the first heat pipe heat exchange unit, and is heat exchanged with the first working medium flowing from the evaporator to the compressor through the second heat pipe heat exchange unit.

[0009] The evaporator has a third heat pipe heat exchange unit and a fourth heat pipe heat exchange unit. The second working medium discharged from the heat-consuming device flows through the third heat pipe heat exchange unit and the fourth heat pipe heat exchange unit. The second working medium discharged from the heat-consuming device is heat-exchanged with the first working medium transported to the evaporator by the condenser through the third heat pipe heat exchange unit. The second working medium flowing into the third heat pipe heat exchange unit is heat-exchanged with the second working medium flowing out of the third heat pipe heat exchange unit through the fourth heat pipe heat exchange unit.

[0010] The embodiment of the utility model can reduce the heat transfer irreversible loss of heat exchange temperature difference in the heat pipe heat exchanger hot and cold supply system.

[0011] In some embodiments, the system further comprises an ejector and a flash tank, wherein the ejector and the flash tank are sequentially connected between the condenser and the evaporator, and the first working fluid discharged from the condenser is cooled and depressurized by the ejector and the flash tank and then transported to the evaporator;

[0012] Among them, the ejector port is connected to the first working fluid outlet of the evaporator, so that part of the first working fluid discharged from the evaporator flows into the ejector; the vapor phase outlet of the flash tank is connected to the compressor, and the liquid phase outlet of the flash tank is connected to the evaporator.

[0013] In some embodiments, a throttle valve is provided at the ejection port of the ejector.

[0014] In some embodiments, the heat-using device is a drying chamber, and the second working medium after heat exchange in the condenser is transported into the drying chamber by the fan;

[0015] Alternatively, the heat-using equipment includes a desalination device, and the second working medium after heat exchange in the condenser is transported into the desalination device by the fan.

[0016] In some embodiments, the desalination device includes a tower body, a filler, a water tank, and a water pump, wherein the filler is disposed in the tower body, and the water pump is connected to the water tank and the tower body to pump the wastewater in the water tank to above the filler;

[0017] The bottom of the tower body is connected to the water tank so that the waste water at the bottom of the tower body flows back into the water tank;

[0018] The second working medium after heat exchange in the condenser is transported by the fan to the bottom of the filler, and the second working medium contacts the wastewater in the filler and then flows out of the tower body.

[0019] In some embodiments, the water tank has a water filling port;

[0020] And / or the tower body has a sewage outlet.

[0021] In some embodiments, the first working fluid is transcritical carbon dioxide, and the second working fluid is air.

[0022] In some embodiments, the first heat pipe heat exchange unit, the second heat pipe heat exchange unit, the third heat pipe heat exchange unit and the fourth heat pipe heat exchange unit are all pulsating heat pipe heat exchangers;

[0023] The pulsating heat pipe heat exchanger includes a heat source chamber, a cold source chamber and a pulsating heat pipe. The hot section of the pulsating heat pipe is located in the heat source chamber, and the cold section of the pulsating heat pipe is located in the cold source chamber.

[0024] In some embodiments, the pulsating heat pipe is a plate-type pulsating heat pipe;

[0025] And / or, it further includes a heat insulation plate, which is arranged between the heat source chamber and the cold source chamber.

[0026] In some embodiments, the condenser includes a first chamber, a second chamber, and a third chamber, a pulsating heat pipe is provided between the second chamber and a portion of the first chamber to form a first heat pipe heat exchange unit, and a pulsating heat pipe is provided between the third chamber and a portion of the first chamber to form a second heat pipe heat exchange unit;

[0027] And / or, the evaporator includes a fourth chamber, a fifth chamber, and a sixth chamber, a pulsating heat pipe is provided between the fifth chamber and a partial section of the fourth chamber to form a third heat pipe heat exchange unit, and a pulsating heat pipe is provided between the sixth chamber and a partial section of the fourth chamber to form a fourth heat pipe heat exchange unit;

[0028] And / or, the position of the heat source chamber in the pulsating heat pipe heat exchanger is adjustable in the circumferential direction of the cold source chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a heat pipe heat exchanger cold and hot supply system according to an embodiment of the present utility model.

[0030] Figure 2 It is a structural schematic diagram of a heat pipe heat exchanger cold and hot supply system according to another embodiment of the present invention.

[0031] Reference numerals:

[0032] 1. Condenser; 11. First chamber; 12. Second chamber; 13. Third chamber;

[0033] 2. Evaporator; 21. Fourth chamber; 22. Fifth chamber; 23. Sixth chamber;

[0034] 3. Compressor;

[0035] 4. Ejector; 41. Throttle valve;

[0036] 5. Flash tank;

[0037] 61. Pulsating heat pipe; 62. Thermal insulation board;

[0038] 7. Fan;

[0039] 8. Drying room;

[0040] 9. Desalination device; 91. Tower body; 92. Water tank; 93. Filler; 94. Water pump. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0042] like Figure 1 and Figure 2 As shown, the heat pipe heat exchanger cold and hot supply system of the embodiment of the present invention includes an evaporator 2, a condenser 1, a first working fluid circulation system and a second working fluid circulation system.

[0043] The first working fluid circulation system includes a compressor 3. The first working fluid compressed by the compressor 3 is cooled by the condenser 1 and then transported to the evaporator 2 for heat exchange. The first working fluid discharged from the evaporator 2 flows back to the compressor 3. The second working fluid circulation system includes a fan 7 and a heat-using device. The second working fluid discharged by the fan 7 passes through the heat-using device and is transported to the evaporator 2 for heat exchange. The second working fluid discharged from the evaporator 2 flows back to the fan 7 after heat exchange with the condenser 1.

[0044] Among them, the condenser 1 has a first heat pipe heat exchange unit and a second heat pipe heat exchange unit. The first working fluid compressed by the compressor 3 is heat exchanged with the second working fluid flowing from the evaporator 2 to the fan 7 through the first heat pipe heat exchange unit, and is heat exchanged with the first working fluid flowing from the evaporator 2 to the compressor 3 through the second heat pipe heat exchange unit.

[0045] The evaporator 2 has a third heat pipe heat exchange unit and a fourth heat pipe heat exchange unit. The second working medium discharged from the heat-consuming equipment flows through the third heat pipe heat exchange unit and the fourth heat pipe heat exchange unit. The second working medium discharged from the heat-consuming equipment exchanges heat with the first working medium transported to the evaporator 2 by the condenser 1 through the third heat pipe heat exchange unit. The second working medium flowing into the third heat pipe heat exchange unit exchanges heat with the second working medium flowing out of the third heat pipe heat exchange unit through the fourth heat pipe heat exchange unit.

[0046] It should be understood that a refrigeration heat pump system is formed between the first working fluid circulation system and the evaporator 2 and the condenser 1. The first working fluid compressed by the compressor 3 enters the condenser 1 for heat exchange and releases heat, then enters the evaporator 2 for heat exchange with the first working fluid and absorbs heat, and finally circulates back to the compressor 3.

[0047] The second working medium circulation system is connected to the evaporator 2 and the condenser 1 to provide heat energy for the heat-using equipment. Specifically, the second working medium undergoes heat exchange and absorbs heat to increase its temperature in the condenser 1. The heated second working medium is introduced into the heat-using equipment through the fan 7. The second working medium discharged from the heat-using equipment enters the evaporator 2 for heat exchange and cooling, and then circulates to the condenser 1 to continue to increase its temperature.

[0048] In the condenser 1 of the embodiment of the present invention, the first working medium compressed by the compressor 3 simultaneously exchanges heat with the second working medium flowing through the condenser 1 and at least a portion of the first working medium before entering the compressor 3 .

[0049] Specifically, when the first working medium compressed by the compressor 3 flows through the first heat pipe heat exchange unit of the condenser 1, it exchanges heat with the second working medium flowing from the evaporator 2 to the fan 7 through the first heat pipe heat exchange unit. At this time, the first working medium releases heat and the second working medium absorbs heat and heats up.

[0050] When the first working medium compressed by the compressor 3 flows through the second heat pipe heat exchange unit of the condenser 1, it exchanges heat with the first working medium flowing from the evaporator 2 to the compressor 3 through the second heat pipe heat exchange unit. At this time, the first working medium compressed by the compressor 3 releases heat, and the first working medium flowing from the evaporator 2 to the compressor 3 absorbs heat, thereby playing a heat recovery role.

[0051] In the evaporator 2 of the embodiment of the present utility model, the first working medium flowing from the condenser 1 to the evaporator 2 performs heat exchange with the second working medium in the evaporator 2 .

[0052] Specifically, the first working medium flowing from the condenser 1 to the evaporator 2 exchanges heat with the second working medium through the third heat pipe heat exchange unit when flowing through the third heat pipe heat exchange unit of the evaporator 2 .

[0053] For the second working medium, the second working medium is pre-cooled, cooled and preheated in the evaporator 2. The second working medium not only exchanges heat with the first working medium through the third heat pipe heat exchange unit in the evaporator 2, but also the second working medium flowing into the third heat pipe heat exchange unit and the second working medium flowing out of the third heat pipe heat exchange unit exchange heat through the fourth heat pipe heat exchange unit, thereby preheating the second working medium flowing out of the third heat pipe heat exchange unit.

[0054] After the second working medium is cooled in the evaporator 2, its moisture content is reduced, and then it is preheated and flows out of the evaporator 2. It is then further heated by the condenser 1 to complete the cycle.

[0055] The embodiment of the utility model can reduce the heat transfer irreversible loss of heat exchange temperature difference in the heat pipe heat exchanger hot and cold supply system.

[0056] Furthermore, in the embodiment of the present invention, the first working fluid is transcritical carbon dioxide. Transcritical carbon dioxide serves as an energy carrier in the refrigeration heat pump system, is environmentally friendly, efficient and energy-saving, and improves energy utilization efficiency. The second working fluid is air. By heating and cooling the air, the air circulates in the system as an energy carrier.

[0057] Direction A shown in the figure is the circulation flow direction of air, and direction B is the circulation flow direction of carbon dioxide working medium.

[0058] The present invention uses a pulsating heat pipe 61 heat exchange unit. Specifically, the pulsating heat pipe 61 heat exchange unit can be used. The heat transfer coefficient is more than 10 times that of an ordinary heat exchanger. In addition, the embodiment of the present invention adopts a dual-process heat exchange design, which has the advantages of heat recovery and a two-stage evaporation circulation system.

[0059] In addition, the evaporator 2 selected in the embodiment of the present invention plays a role of pre-cooling for air circulation, and reduces the irreversible heat transfer loss caused by the heat exchange temperature difference for the circulation of carbon dioxide working medium, playing a role of bipolar evaporation cycle.

[0060] The condenser 1 used in the embodiment of the present invention reduces the irreversible heat transfer loss caused by the heat exchange temperature difference for the carbon dioxide working medium cycle, and at the same time preheats part of the carbon dioxide working medium entering the compressor 3, so that the suction air of the compressor 3 reaches a superheated state, thereby reducing the refrigerant temperature at the cooler outlet.

[0061] like Figure 1 As shown, in some embodiments, the heat-using device is a drying chamber 8 , and the second working medium after heat exchange in the condenser 1 is transported into the drying chamber 8 by the fan 7 .

[0062] After the air is heated in the condenser 1, it is transported to the drying chamber 8 by the fan 7. The moisture in the drying chamber 8 evaporates and flows to the evaporator 2 with the air. The air with a high moisture content is cooled in the evaporator 2, dehumidified and the moisture content is reduced. It is then preheated in the evaporator 2 and circulated to the condenser 1 to continue to heat and heat, and recycled to realize the heat pump drying technology.

[0063] like Figure 2 As shown, in some embodiments, the heat-using equipment includes a desalination device 9 , and the second working medium after heat exchange in the condenser 1 is transported into the desalination device 9 by the fan 7 .

[0064] Specifically, the desalination device 9 includes a tower body 91, a filler 93, a water tank 92 and a water pump 94. The filler 93 is arranged in the tower body 91. The water pump 94 is connected to the water tank 92 and the tower body 91 to pump the wastewater in the water tank 92 to the top of the filler 93; the bottom of the tower body 91 is connected to the water tank 92 to allow the wastewater at the bottom of the tower body 91 to flow back into the water tank 92; the second working medium after heat exchange in the condenser 1 is transported to the bottom of the filler 93 by the fan 7, and the second working medium contacts the wastewater in the filler 93 and then flows out of the tower body 91.

[0065] The hot air and wastewater transfer mass and heat in the filler 93. A large amount of water is evaporated and discharged from the tower body 91 by the air. The remaining concentrated wastewater flows to the bottom of the tower body 91 and flows back into the water tank 92. With the continuous operation of the water pump 94, the wastewater in the water tank 92 is concentrated to the set value and then discharged.

[0066] The direction C shown in the figure is the circulation direction of the wastewater.

[0067] Furthermore, the water tank 92 has a water replenishment port, and the tower body 91 has a sewage outlet. The sewage outlet is used to discharge concentrated wastewater, and the water replenishment port is used to replenish wastewater to be concentrated.

[0068] In some embodiments, the heat pipe heat exchanger cold and hot supply system also includes an ejector 4 and a flash tank 5, which are connected in sequence between the condenser 1 and the evaporator 2. The first working fluid discharged from the condenser 1 is cooled and depressurized by the ejector 4 and the flash tank 5 and then transported into the evaporator 2.

[0069] Among them, the ejector port of the ejector 4 is connected to the first working medium outlet of the evaporator 2, so that part of the first working medium discharged from the evaporator 2 flows into the ejector 4; the vapor phase outlet of the flash tank 5 is connected to the compressor 3, and the liquid phase outlet of the flash tank 5 is connected to the evaporator 2.

[0070] It should be understood that the ejector 4 can restore part of the expansion work of the working fluid during the throttling process, further increase the suction pressure of the compressor 3, significantly reduce the compression ratio and exhaust temperature of the compressor 3, and enable the system to operate efficiently, stably and safely.

[0071] Furthermore, a throttle valve 41 is provided at the ejection port of the ejector 4. The throttle valve 41 can play the role of throttling and reducing pressure, assisting the ejector to work stably, and making the system flow distribution more matching.

[0072] During operation, the carbon dioxide working medium compressed by the compressor 3 is condensed and liquefied after heat exchange in the condenser 1. The liquefied carbon dioxide working medium enters the ejector 4 as a working fluid to cool down and reduce the pressure. The fluid at the ejector port of the ejector 4 is the partially vaporized carbon dioxide working medium discharged from the evaporator 2. Then the mixed fluid enters the flash tank 5 for gas-liquid separation. The separated gaseous carbon dioxide working medium enters the compressor 3 to replenish air and increase entropy, and the separated liquid carbon dioxide working medium enters the evaporator 2.

[0073] In some embodiments, the first heat pipe heat exchange unit, the second heat pipe heat exchange unit, the third heat pipe heat exchange unit and the fourth heat pipe heat exchange unit are all pulsating heat pipe 61 heat exchangers; the pulsating heat pipe 61 heat exchanger includes a heat source chamber, a cold source chamber and a pulsating heat pipe 61, the hot section of the pulsating heat pipe 61 is located in the heat source chamber, and the cold section of the pulsating heat pipe 61 is located in the cold source chamber.

[0074] For example, when the first heat pipe heat exchange unit is working, the carbon dioxide working medium compressed by the compressor 3 flows through the heat source chamber in the first heat pipe heat exchange unit, and the air flowing from the evaporator 2 to the fan 7 flows through the cold source chamber in the first heat pipe heat exchange unit. The pulsating heat pipe 61 in the first heat pipe heat exchange unit is arranged between the cold source chamber and the heat source chamber. The carbon dioxide working medium compressed by the compressor 3 releases heat after heat exchange, and the air flowing from the evaporator 2 to the fan 7 absorbs heat and heats up after heat exchange.

[0075] For another example, when the second heat pipe heat exchange unit is working, the carbon dioxide working medium compressed by the compressor 3 flows through the heat source chamber in the second heat pipe heat exchange unit, and part of the carbon dioxide working medium flowing from the evaporator 2 to the compressor 3 flows through the cold source chamber in the second heat pipe heat exchange unit. The pulsating heat pipe 61 in the second heat pipe heat exchange unit is arranged between the corresponding cold source chamber and the heat source chamber. The carbon dioxide working medium compressed by the compressor 3 releases heat after heat exchange, and the carbon dioxide working medium flowing from the evaporator 2 to the compressor 3 absorbs heat and rises in temperature after heat exchange.

[0076] For another example, when the third heat pipe heat exchange unit is working, the liquid carbon dioxide working medium, which is cooled and reduced in pressure by the ejector 4 and the flash tank 5 and then transported to the evaporator 2, flows through the cold source chamber of the third heat pipe heat exchange unit. The air with a high moisture content discharged from the heat-consuming equipment flows into the heat source chamber of the third heat pipe heat exchange unit after passing through the fourth heat pipe heat exchange unit. The liquid carbon dioxide working medium flowing through the third heat pipe heat exchange unit absorbs heat and vaporizes, and the air flowing through the third heat pipe heat exchange unit releases heat and cools down, thereby reducing its moisture content.

[0077] For another example, when the fourth heat pipe heat exchange unit is working, the air with a high moisture content discharged by the heat-consuming equipment first flows through the heat source chamber of the fourth heat pipe heat exchange unit before entering the third heat pipe heat exchange unit, thereby achieving pre-cooling of the air entering the third heat pipe heat exchange unit. At the same time, the air cooled by heat exchange in the third heat pipe heat exchange unit flows through the cold source chamber of the fourth heat pipe heat exchange unit, thereby achieving preheating of the air flowing to the condenser 1.

[0078] Each heat pipe heat exchange unit in the above embodiment further includes a heat insulation plate 62, which is provided between the heat source chamber and the cold source chamber. The heat insulation plate 62 is a heat insulation plate made of a heat insulating material, or is an insulation chamber provided between the heat source chamber and the cold source chamber.

[0079] Optionally, the pulsating heat pipe 61 in the embodiment of the present invention is a plate-type pulsating heat pipe 61. The position of the heat source chamber in the pulsating heat pipe 61 heat exchanger can be adjusted circumferentially with respect to the cold source chamber. The pulsating heat pipe 61 heat exchanger can be adjusted to different angles for easy installation. At the same time, the plate-type pulsating heat pipe 61 can increase the heat transfer coefficient and reduce the size of the heat exchange equipment.

[0080] Furthermore, the condenser 1 includes a first chamber 11, a second chamber 12 and a third chamber 13, a pulsating heat pipe 61 is provided between the second chamber 12 and a partial section of the first chamber 11 to form a first heat pipe heat exchange unit, and a pulsating heat pipe 61 is provided between the third chamber 13 and a partial section of the first chamber 11 to form a second heat pipe heat exchange unit.

[0081] Specifically, after being compressed by the compressor 3, the carbon dioxide working medium enters the first chamber 11 and first passes through the section corresponding to the second chamber 12 to achieve heat exchange with the air flowing through the second chamber 12. When it flows through the section corresponding to the third chamber 13, it achieves heat exchange with part of the carbon dioxide working medium flowing to the compressor 3.

[0082] The evaporator 2 includes a fourth chamber 21, a fifth chamber 22 and a sixth chamber 23. A pulsating heat pipe 61 is provided between the fifth chamber 22 and a partial section of the fourth chamber 21 to form a third heat pipe heat exchange unit. A pulsating heat pipe 61 is provided between the sixth chamber 23 and a partial section of the fourth chamber 21 to form a fourth heat pipe heat exchange unit.

[0083] Specifically, the air with a high moisture content discharged from the heat-using equipment first passes through the sixth chamber 23, and then passes through the section of the fourth chamber 21 corresponding to the fifth chamber 22, and the section of the fourth chamber 21 corresponding to the sixth chamber 23. The liquid carbon dioxide working medium flowing to the evaporator 2 flows through the fifth chamber 22, so that the air with a high moisture content discharged from the heat-using equipment is first pre-cooled in the sixth chamber 23, and then heat-exchanged with the carbon dioxide working medium. Finally, after being preheated, it flows to the condenser 1 to continue absorbing heat. The embodiment of the present invention reduces the space occupied by the equipment and reduces costs. Compared with the problems of large equipment size and low heat transfer coefficient of the heat exchanger in the related art, the present invention also has the following beneficial effects:

[0084] The pulsating heat pipe heat exchanger in this embodiment utilizes a plate-type pulsating heat pipe, combining heat recovery with condensation and evaporation heat exchangers to form a dual-circulation heat exchange device. The condenser provides preheating and the evaporator provides precooling, reducing the space occupied by the system. Furthermore, the plate-type pulsating heat pipes allow for adjustable heat pipe angles, allowing the heat source and cooling chambers of the pulsating heat pipe heat exchanger to rotate to different angles. This facilitates installation, increases the heat transfer coefficient, significantly reduces equipment size, and reduces system costs.

[0085] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0086] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0087] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0088] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0089] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0090] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A heat pipe heat exchanger cooling and heating system, characterized in that: It includes an evaporator, a condenser, a first working fluid circulation system and a second working fluid circulation system; The first working medium circulation system includes a compressor, the first working medium compressed by the compressor is cooled by the condenser and then transported to the evaporator for heat exchange, and the first working medium discharged from the evaporator flows back to the compressor; The second working medium circulation system includes a fan and a heat-using device. The second working medium discharged from the fan is transported to the evaporator for heat exchange after passing through the heat-using device. The second working medium discharged from the evaporator is returned to the fan after heat exchange in the condenser. The condenser has a first heat pipe heat exchange unit and a second heat pipe heat exchange unit. The first working medium compressed by the compressor is heat exchanged with the second working medium flowing from the evaporator to the fan through the first heat pipe heat exchange unit, and is heat exchanged with the first working medium flowing from the evaporator to the compressor through the second heat pipe heat exchange unit. The evaporator has a third heat pipe heat exchange unit and a fourth heat pipe heat exchange unit. The second working medium discharged from the heat-consuming device flows through the third heat pipe heat exchange unit and the fourth heat pipe heat exchange unit. The second working medium discharged from the heat-consuming device is heat-exchanged with the first working medium transported to the evaporator by the condenser through the third heat pipe heat exchange unit. The second working medium flowing into the third heat pipe heat exchange unit is heat-exchanged with the second working medium flowing out of the third heat pipe heat exchange unit through the fourth heat pipe heat exchange unit.

2. The heat pipe heat exchanger cooling and heating system according to claim 1, characterized in that: The system further comprises an ejector and a flash tank, wherein the ejector and the flash tank are sequentially connected between the condenser and the evaporator, and the first working fluid discharged from the condenser is cooled and depressurized by the ejector and the flash tank and then transported to the evaporator; Among them, the ejector port is connected to the first working fluid outlet of the evaporator, so that part of the first working fluid discharged from the evaporator flows into the ejector; the vapor phase outlet of the flash tank is connected to the compressor, and the liquid phase outlet of the flash tank is connected to the evaporator.

3. The heat pipe heat exchanger cooling and heating system according to claim 2, characterized in that: A throttle valve is provided at the ejection port of the ejector.

4. The heat pipe heat exchanger cooling and heating system according to claim 1, characterized in that: The heat-using equipment is a drying chamber, and the second working medium after heat exchange in the condenser is transported into the drying chamber by the fan; Alternatively, the heat-using equipment includes a desalination device, and the second working medium after heat exchange in the condenser is transported into the desalination device by the fan.

5. The heat pipe heat exchanger cooling and heating system according to claim 4, characterized in that: The desalination device includes a tower body, a filler, a water tank and a water pump, wherein the filler is arranged in the tower body, and the water pump is connected to the water tank and the tower body to pump the wastewater in the water tank to above the filler; The bottom of the tower body is connected to the water tank so that the waste water at the bottom of the tower body flows back into the water tank; The second working medium after heat exchange in the condenser is transported by the fan to the bottom of the filler, and the second working medium contacts the wastewater in the filler and then flows out of the tower body.

6. The heat pipe heat exchanger cooling and heating system according to claim 5, characterized in that: The water tank has a water filling port; And / or the tower body has a sewage outlet.

7. The heat pipe heat exchanger cooling and heating system according to claim 1, characterized in that: The first working fluid is transcritical carbon dioxide, and the second working fluid is air.

8. The heat pipe heat exchanger cooling and heating system according to claim 1, characterized in that: The first heat pipe heat exchange unit, the second heat pipe heat exchange unit, the third heat pipe heat exchange unit and the fourth heat pipe heat exchange unit are all pulsating heat pipe heat exchangers; The pulsating heat pipe heat exchanger includes a heat source chamber, a cold source chamber and a pulsating heat pipe. The hot section of the pulsating heat pipe is located in the heat source chamber, and the cold section of the pulsating heat pipe is located in the cold source chamber.

9. The heat pipe heat exchanger cooling and heating system according to claim 8, characterized in that: The pulsating heat pipe is a plate-type pulsating heat pipe; And / or, it further includes a heat insulation plate, which is arranged between the heat source chamber and the cold source chamber.

10. The heat pipe heat exchanger cooling and heating system according to claim 8, characterized in that: The condenser comprises a first chamber, a second chamber and a third chamber, a pulsating heat pipe is provided between the second chamber and a portion of the first chamber to form a first heat pipe heat exchange unit, and a pulsating heat pipe is provided between the third chamber and a portion of the first chamber to form a second heat pipe heat exchange unit; And / or, the evaporator includes a fourth chamber, a fifth chamber, and a sixth chamber, a pulsating heat pipe is provided between the fifth chamber and a partial section of the fourth chamber to form a third heat pipe heat exchange unit, and a pulsating heat pipe is provided between the sixth chamber and a partial section of the fourth chamber to form a fourth heat pipe heat exchange unit; And / or, the position of the heat source chamber in the pulsating heat pipe heat exchanger is adjustable in the circumferential direction of the cold source chamber.

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