Evaporator and air cooler system of carbon dioxide heat pump
By optimizing the structural design of the evaporator and air cooler in the carbon dioxide heat pump system, the adaptability problem under high temperature and high pressure environment was solved, achieving efficient heat exchange and energy utilization, and ensuring the safety and reliability of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PUREIS TECHNOLOGY (HUBEI) CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional evaporators and air coolers cannot adapt to the high-temperature and high-pressure environment in carbon dioxide heat pump systems, resulting in unsafe and unreliable operation.
Design an evaporator and air cooler system for a carbon dioxide heat pump. By arranging the evaporation heat exchange module and the air cooling heat exchange module perpendicular to the air blowing direction, the heat exchange area and number of layers are increased. High-strength stainless steel tubes and hydrophilic aluminum foil are used to ensure high pressure adaptability and safety.
It improves heat exchange efficiency and energy utilization efficiency, enhances adaptability to high temperature and high pressure environments, ensures operational safety and reliability, and is suitable for high temperature drying, baking and other applications.
Smart Images
Figure CN224151203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-temperature drying technology, and in particular to an evaporator and air cooler system for a carbon dioxide heat pump. Background Technology
[0002] The evaporator and air cooler are important components of a high-temperature heat pump. In the evaporator, the refrigerant absorbs heat from the surrounding environment at a low temperature and low pressure and evaporates into a gaseous state, thus absorbing heat from the outside world. The air cooler cools the high-temperature, high-pressure gaseous refrigerant into a liquid state, while simultaneously releasing heat into the environment. This achieves the function of the evaporator absorbing heat energy from the air and releasing that heat energy in the air cooler.
[0003] Currently, in traditional heat pump systems, the refrigerant used is R134a or R410a, and the pressure range of the evaporator and air cooler used is usually between 0.7MPa and 3.0MPa.
[0004] Carbon dioxide, as a natural refrigerant, boasts advantages such as being environmentally friendly, non-toxic, and non-flammable. In terms of energy efficiency and economy, carbon dioxide refrigerant, with its high volumetric cooling capacity, provides greater cooling effect within the same volume, thus reducing system size and compressor displacement. Furthermore, carbon dioxide's thermal conductivity is generally higher than that of R134a or R410a, meaning its heat exchange efficiency is higher. Therefore, heat pump units using carbon dioxide as a refrigerant are gradually becoming a trend. The high-pressure characteristics of carbon dioxide heat pumps allow them to operate efficiently at lower ambient temperatures, making them particularly suitable for applications requiring high temperatures, such as drying and baking. In carbon dioxide heat pump systems, the operating pressure range is much higher than that of traditional heat pump systems, typically between 5.0 MPa and 16.0 MPa. Clearly, the evaporators and air coolers used in traditional refrigerant applications cannot meet the operating pressure requirements of carbon dioxide heat pump systems in terms of structural characteristics and materials. Utility Model Content
[0005] The purpose of this invention is to provide an evaporator and air cooler system for a carbon dioxide heat pump to solve the problems existing in the prior art, making the evaporator and air cooler suitable for use in high temperature and high pressure environments, enhancing high pressure adaptability, and ensuring operational safety and reliability.
[0006] To achieve the above objectives, this utility model provides the following solution:
[0007] This utility model provides an evaporator and air cooler system for a carbon dioxide heat pump, including an evaporator and an air cooler;
[0008] The evaporator includes an evaporation frame and at least two evaporation heat exchange modules. Each evaporation heat exchange module has the same structure and is independent of each other. Each evaporation heat exchange module is arranged in a direction perpendicular to the evaporation blowing direction. Each evaporation heat exchange module includes at least two evaporation heat exchange units. Each evaporation heat exchange unit has the same structure and is independent of each other. Each evaporation heat exchange unit is arranged in the evaporation blowing direction. Each evaporation heat exchange unit includes a plurality of parallel evaporation heat exchange tubes. The evaporation heat exchange tubes are fixedly mounted on the evaporation frame.
[0009] The air cooler includes an air-cooled frame and at least two air-cooled heat exchange modules. Each air-cooled heat exchange module has the same structure and is independent of the others. Each air-cooled heat exchange module is arranged in a direction perpendicular to the air-cooled airflow direction. Each air-cooled heat exchange module includes at least two air-cooled heat exchange units. Each air-cooled heat exchange unit has the same structure and is independent of the others. Each air-cooled heat exchange unit is arranged in the air-cooled airflow direction. Each air-cooled heat exchange unit includes a plurality of parallel air-cooled heat exchange tubes. The air-cooled heat exchange tubes are fixedly mounted on the air-cooled frame.
[0010] Preferably, the evaporative heat exchange tube includes an evaporative heat exchange base tube and a plurality of evaporative heat exchange fins, each of which is fixedly sleeved on the evaporative heat exchange base tube in parallel with each other; the air-cooled heat exchange tube includes an air-cooled heat exchange base tube and a plurality of air-cooled heat exchange fins, each of which is fixedly sleeved on the air-cooled heat exchange base tube in parallel with each other.
[0011] Preferably, the inner diameter of the evaporative heat exchange base tube is 8.32 mm to 9.32 mm, and the wall thickness is 0.5 mm to 0.9 mm; the inner diameter of the air-cooled heat exchange base tube is 8.32 mm to 9.32 mm, and the wall thickness is 0.5 mm to 0.9 mm.
[0012] Preferably, both the evaporative heat exchange base tube and the air-cooled heat exchange base tube are seamless stainless steel tubes.
[0013] Preferably, both the evaporative heat exchange base tube and the air-cooled heat exchange base tube are 06Cr19Ni10 stainless steel tubes.
[0014] Preferably, both the evaporative heat exchange fins and the air-cooled heat exchange fins are hydrophilic aluminum foil sheets.
[0015] Preferably, the thickness of the evaporative heat exchange fins and the thickness of the air-cooled heat exchange fins are both 0.11 mm to 0.12 mm; the distance between any two adjacent evaporative heat exchange fins on any one of the evaporative heat exchange base tubes is 1.5 mm to 2.5 mm; and the distance between any two adjacent air-cooled heat exchange fins on any one of the air-cooled heat exchange base tubes is 1.5 mm to 2.5 mm.
[0016] Preferably, the evaporative heat exchange fins are expanded and connected to the evaporative heat exchange base tube; the air-cooled heat exchange fins are expanded and connected to the air-cooled heat exchange base tube.
[0017] Preferably, the evaporation heat exchange module further includes a liquid distributor and a gas collecting pipe. The liquid distributor has a main channel and several branch channels inside. Each branch channel corresponds to one of the evaporation heat exchange tubes. One end of each branch channel is fixedly connected to and communicates with the inlet of the evaporation heat exchange tube. One end of the main channel is connected to the other end of each branch channel. The other end of the main channel is used to communicate with the liquid supply pipeline. The gas collecting pipe is connected to the outlet of each evaporation heat exchange tube. A first threaded joint is fixedly provided on the middle part of the gas collecting pipe. The first threaded joint is used to communicate with the gas outlet pipeline.
[0018] Preferably, the air-cooled heat exchange module further includes an air inlet pipe and a liquid outlet pipe. The air inlet pipe is connected to the inlet of each of the air-cooled heat exchange tubes, and the liquid outlet pipe is connected to the outlet of each of the air-cooled heat exchange tubes. A second threaded connector is fixedly provided on the middle part of the air inlet pipe for connecting to the air supply pipeline, and a third threaded connector is fixedly provided on the middle part of the liquid outlet pipe for connecting to the liquid outlet pipeline.
[0019] The present invention achieves the following technical advantages over the prior art:
[0020] The evaporator and air cooler system of the carbon dioxide heat pump provided by this utility model increases the heat exchange area and improves the heat exchange capacity of the evaporator by arranging each evaporation heat exchange module in a direction perpendicular to the evaporation air blowing direction. It also increases the number of heat exchange layers and the heat exchange area by arranging each evaporation heat exchange unit in the evaporation air blowing direction, thus enhancing the heat exchange effect. This system better matches temperature slip, effectively improving the heat exchange efficiency on the air side and improving energy utilization efficiency. It is suitable for use in high-temperature and high-pressure environments, enhancing high-pressure adaptability and ensuring operational safety and reliability. Similarly, by arranging each air-cooled heat exchange module in a direction perpendicular to the air-cooled air blowing direction, it increases the heat exchange area and improves the heat exchange capacity of the air cooler. Furthermore, by arranging each air-cooled heat exchange unit in the air-cooled air blowing direction, it increases the number of heat exchange layers and the heat exchange area, enhancing the heat exchange effect. This system better matches temperature slip, effectively improving the heat exchange efficiency on the heating side and improving energy utilization efficiency. It is suitable for use in high-temperature and high-pressure environments, enhancing high-pressure adaptability and ensuring operational safety and reliability. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 A schematic diagram of the evaporator in the carbon dioxide heat pump and air cooler system provided by this utility model;
[0023] Figure 2 for Figure 1 Layout diagram of the liquid separator and gas collecting pipe in the evaporator;
[0024] Figure 3 for Figure 1 A schematic diagram of one side of the evaporation heat exchange module in the evaporator;
[0025] Figure 4 for Figure 1 A schematic diagram of the other side of the evaporation heat exchange module in the evaporator;
[0026] Figure 5 A schematic diagram of the air cooler in the evaporator and air cooler system of the carbon dioxide heat pump provided by this utility model.
[0027] Figure 6 for Figure 1 Layout diagram of the air inlet pipe and liquid outlet pipe in the evaporator;
[0028] Figure 7 for Figure 1 A schematic diagram of one side of the air-cooled heat exchange module in the evaporator;
[0029] Figure 8 for Figure 1 A schematic diagram of the other side of the air-cooled heat exchange module in the evaporator;
[0030] In the picture:
[0031] 1-Evaporator, 11-Evaporation frame, 12-Evaporation heat exchange module, 13-Evaporation heat exchange tube, 14-Dispenser, 15-Gas collecting tube, 16-First threaded joint;
[0032] 2-Air cooler, 21-Air cooler frame, 22-Air cooler heat exchange module, 23-Air cooler heat exchange tube, 24-Air inlet pipe, 25-Liquid outlet pipe, 26-Second threaded connector. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] The purpose of this invention is to provide an evaporator and air cooler system for a carbon dioxide heat pump to solve the problems existing in the prior art, making the evaporator and air cooler suitable for use in high temperature and high pressure environments, enhancing high pressure adaptability, and ensuring operational safety and reliability.
[0035] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0036] like Figures 1 to 8 As shown, this utility model provides an evaporator and air cooler system for a carbon dioxide heat pump, including an evaporator 1 and an air cooler 2. The evaporator 1 includes an evaporation frame 11 and at least two evaporation heat exchange modules 12. Each evaporation heat exchange module 12 has the same structure and is independent of each other. Each evaporation heat exchange module 12 is arranged in a direction perpendicular to the evaporation air blowing direction. Each evaporation heat exchange module 12 includes at least two evaporation heat exchange units. Each evaporation heat exchange unit has the same structure and is independent of each other. Each evaporation heat exchange unit is arranged in the evaporation air blowing direction. Each evaporation heat exchange unit includes a plurality of parallel evaporation heat exchange tubes 1. 3. The evaporation heat exchange tube 13 is fixedly mounted on the evaporation frame 11; the air cooler 2 includes an air cooling frame 21 and at least two air cooling heat exchange modules 22. Each air cooling heat exchange module 22 has the same structure and is independent of each other. Each air cooling heat exchange module 22 is arranged in a direction perpendicular to the air cooling blowing direction. Each air cooling heat exchange module 22 includes at least two air cooling heat exchange units. Each air cooling heat exchange unit has the same structure and is independent of each other. Each air cooling heat exchange unit is arranged in the air cooling blowing direction. Each air cooling heat exchange unit includes several parallel air cooling heat exchange tubes 23. The air cooling heat exchange tubes 23 are fixedly mounted on the air cooling frame 21.
[0037] The evaporator and air cooler system of the carbon dioxide heat pump provided by this utility model increases the heat exchange area and improves the heat exchange capacity of the evaporator 1 by arranging each evaporation heat exchange module 12 in a direction perpendicular to the evaporation blowing direction. Arranging each evaporation heat exchange unit in the evaporation blowing direction increases the number of heat exchange layers and the heat exchange area, enhancing the heat exchange effect. It can better match temperature slip, effectively improving the heat exchange efficiency on the air side and improving energy utilization efficiency. It is suitable for use in high-temperature and high-pressure environments, enhancing high-pressure adaptability and ensuring operational safety and reliability. Similarly, arranging each air-cooled heat exchange module 22 in a direction perpendicular to the air-cooled blowing direction increases the heat exchange area and improves the heat exchange capacity of the air cooler 2. Arranging each air-cooled heat exchange unit in the air-cooled blowing direction increases the number of heat exchange layers and the heat exchange area, enhancing the heat exchange effect. It can better match temperature slip, effectively improving the heat exchange efficiency on the heating side and improving energy utilization efficiency. It is suitable for use in high-temperature and high-pressure environments, enhancing high-pressure adaptability and ensuring operational safety and reliability. Therefore, in the carbon dioxide heat pump evaporator and air cooler system provided by this utility model, the pressure resistance of evaporator 1 and air cooler 2 is greatly improved, which can meet the needs of complex working conditions such as high-temperature hot air supply, drying, baking or waste heat recovery. The structure is compact, the operation is stable and reliable, and the maintenance cost is reduced.
[0038] In a preferred embodiment of this invention, the number of evaporative heat exchange units is three, meaning the evaporative airflow passes through all three units sequentially, achieving three-layer heat exchange. This increases the number of structural branches, reduces the carbon dioxide refrigerant flow rate, effectively lowers the single-pipe pressure drop and total pressure drop, and increases the heat exchange area. Consequently, the temperature drop of air flowing through evaporator 1 increases, and the evaporation temperature decreases, which is beneficial for improving the overall heat exchange efficiency. Similarly, the number of air-cooled heat exchange units is also three, meaning the air-cooled airflow passes through all three units sequentially, achieving three-layer heat exchange. This increases the number of structural branches, reduces the carbon dioxide refrigerant flow rate, effectively lowers the single-pipe pressure drop and total pressure drop, and increases the heat exchange area. Consequently, the temperature rise of air flowing through air cooler 2 increases, and the air-cooling temperature increases, which is beneficial for improving the overall heat exchange efficiency.
[0039] When the evaporator 1 and air cooler 2 of the carbon dioxide heat pump evaporator and air cooler system provided by this utility model are used, they are connected to other supporting system components such as carbon dioxide compressor and throttling device through high temperature and high pressure resistant pipes. It can be widely used in high-load scenarios such as tobacco curing, industrial drying, food processing, industrial heat recovery or district heating.
[0040] In a preferred embodiment of this invention, the evaporator 1 is equipped with two evaporation heat exchange modules 12, which are coupled with two external rotor axial flow fans (speed 1400 rpm, design air volume 3500 m³ / h). 3The external rotor axial flow fan provides forced convection to promote heat exchange; the air cooler 2 is equipped with two air-cooled heat exchange modules 22, which work in conjunction with the internal rotor high-temperature axial flow fan (speed 960 / 1450rpm, design air volume: 20000m³ / h). 3 / h), the internal rotor high-temperature axial flow fan provides forced convection, which, together with the air guide shroud, forms a directional high-temperature airflow.
[0041] As a preferred embodiment of this invention, the evaporative heat exchange tube 13 includes an evaporative heat exchange base tube and several evaporative heat exchange fins. Each evaporative heat exchange fin is fixedly sleeved on the evaporative heat exchange base tube in parallel with each other, which can effectively increase the heat exchange area. Moreover, the structure is simple and easy to manufacture and use. The air-cooled heat exchange tube 23 includes an air-cooled heat exchange base tube and several air-cooled heat exchange fins. Each air-cooled heat exchange fin is fixedly sleeved on the air-cooled heat exchange base tube in parallel with each other, which can effectively increase the heat exchange area. Moreover, the structure is simple and easy to manufacture and use.
[0042] In a preferred embodiment of this invention, the inner diameter of the evaporative heat exchange base tube is 8.32 mm to 9.32 mm, preferably 8.82 mm, and the wall thickness is 0.5 mm to 0.9 mm, preferably 0.7 mm; the inner diameter of the air-cooled heat exchange base tube is 8.32 mm to 9.32 mm, preferably 8.82 mm, and the wall thickness is 0.5 mm to 0.9 mm, preferably 0.7 mm. This ensures heat exchange performance while maintaining a pressure resistance of up to 16 MPa, preventing high-pressure deformation and reducing the risk of leakage. It should be noted that the dimensions of the evaporative heat exchange base tube and the air-cooled heat exchange base tube can be adjusted according to actual usage requirements.
[0043] As a preferred embodiment of this invention, both the evaporative heat exchange base tube and the gas-cooled heat exchange base tube are seamless stainless steel tubes, which can cope with the drastic changes in the physical properties of high-pressure carbon dioxide and effectively avoid deformation or fatigue cracking under high-pressure conditions.
[0044] As a preferred embodiment of this invention, both the evaporative heat exchange base tube and the air-cooled heat exchange base tube are made of 06Cr19Ni10 stainless steel, which has strong resistance to high temperature and high pressure.
[0045] As a preferred embodiment of this invention, both the evaporative heat exchange fins and the air-cooled heat exchange fins are hydrophilic aluminum foil sheets, which are easy to manufacture and use.
[0046] In a preferred embodiment of this invention, the thickness of both the evaporative heat exchange fins and the air-cooled heat exchange fins is 0.11 mm to 0.12 mm, preferably 0.115 mm; the distance between any two adjacent evaporative heat exchange fins on any evaporative heat exchange base tube is 1.5 mm to 2.5 mm, preferably 2 mm; the distance between any two adjacent air-cooled heat exchange fins on any air-cooled heat exchange base tube is 1.5 mm to 2.5 mm, preferably 2 mm, which can effectively improve heat exchange efficiency. It should be noted that the above dimensions of the evaporative heat exchange fins and the air-cooled heat exchange fins can also be adjusted according to actual usage requirements.
[0047] In a preferred embodiment of this invention, the evaporative heat exchange fins and the evaporative heat exchange base tube are expanded together, and the expansion process ensures that the evaporative heat exchange fins and the evaporative heat exchange base tube are tightly connected; the air-cooled heat exchange fins and the air-cooled heat exchange base tube are expanded together, and the expansion process ensures that the air-cooled heat exchange fins and the air-cooled heat exchange base tube are tightly connected.
[0048] In a preferred embodiment of this invention, the evaporation heat exchange module 12 further includes a liquid distributor 14 and a gas collecting pipe 15. The liquid distributor 14 has a main channel and several branch channels, each corresponding to one of the evaporation heat exchange tubes 13. One end of each branch channel is fixedly connected to and communicates with the inlet of the evaporation heat exchange tube 13. One end of the main channel is connected to the other end of each branch channel, and the other end of the main channel is used to communicate with the liquid supply pipeline. The gas collecting pipe 15 is connected to the outlet of each evaporation heat exchange tube 13. A first threaded connector 16 is fixedly provided on the middle of the gas collecting pipe 15. The first threaded connector 16 is used to communicate with the gas outlet pipeline. The branch channels enable automatic adjustment of the flow pressure drop of carbon dioxide refrigerant to balance the pressure of each return in the evaporator 1. The flow distribution of the pipeline ensures that the carbon dioxide refrigerant undergoes effective throttling before entering each evaporator heat exchanger tube 13, converting the high-pressure liquid carbon dioxide refrigerant into a low-pressure saturated liquid, effectively reducing the generation of flash gas, and keeping the carbon dioxide refrigerant in a saturated liquid state as much as possible. This ensures that the carbon dioxide refrigerant is evenly distributed in each evaporator heat exchanger tube 13, thereby improving evaporation efficiency and cooling effect. As a preferred embodiment, one end of the branch channel is welded to the inlet of the evaporator heat exchanger tube 13, and the middle part of the gas collecting pipe 15 is welded to the first threaded joint 16. The distributor 14 and the gas collecting pipe 15 are both 06Cr19Ni10 stainless steel pipes. In this embodiment, the diameter of the main channel is 22mm.
[0049] In a preferred embodiment of this invention, the gas collecting pipe 15 includes a first gas collecting short pipe, a first tee connecting pipe, and a second gas collecting short pipe connected in sequence. The first and second gas collecting short pipes are respectively welded to the two connecting ports of the first tee connecting pipe. The remaining connecting port on the first tee connecting pipe is welded to the first threaded joint 16. The first threaded joint 16 is threadedly connected to the gas outlet pipe and sealed with a polytetrafluoroethylene strip. The pre-tightening force is designed to be 1.5 times the working pressure (approximately 24 MPa) to ensure the sealing reliability under high pressure and avoid failure under vibration.
[0050] As a preferred embodiment of this invention, the air-cooled heat exchange module 22 further includes an air inlet pipe 24 and a liquid outlet pipe 25. The air inlet pipe 24 is connected to the inlet of each air-cooled heat exchange tube 23, and the liquid outlet pipe 25 is connected to the outlet of each air-cooled heat exchange tube 23. A second threaded connector 26 is fixedly provided on the middle part of the air inlet pipe 24 for connecting to the air supply pipeline. A third threaded connector is fixedly provided on the middle part of the liquid outlet pipe 25 for connecting to the liquid outlet pipe 25, which facilitates manufacturing and use.
[0051] In a preferred embodiment of this invention, both the air inlet pipe 24 and the liquid outlet pipe 25 are 06Cr19Ni10 stainless steel pipes; in this embodiment, the diameter of the air inlet pipe 24 is 19mm and the diameter of the liquid outlet pipe 25 is 25mm.
[0052] In a preferred embodiment of this invention, the intake pipe 24 includes a first intake short pipe, a second tee connecting pipe, and a second intake short pipe connected in sequence. The first intake short pipe and the second intake short pipe are respectively welded to the two connecting ports of the second tee connecting pipe. The remaining connecting port on the second tee connecting pipe is welded to the second threaded joint 26. The second threaded joint 26 is threadedly connected to the air supply pipeline and sealed with a polytetrafluoroethylene strip. The pre-tightening force is designed to be 1.5 times the working pressure (approximately 24 MPa) to ensure the sealing reliability under high pressure and avoid failure under vibration.
[0053] In a preferred embodiment of this invention, the liquid outlet pipe 25 includes a first liquid outlet short pipe, a third tee connecting pipe, and a second liquid outlet short pipe connected in sequence. The first and second liquid outlet short pipes are respectively welded to two connecting ports of the third tee connecting pipe. The remaining connecting ports on the third tee connecting pipe are welded to a third threaded connector. The third threaded connector is threadedly connected to the liquid outlet pipe 25 and sealed with a polytetrafluoroethylene (PTFE) strip. The pre-tightening force is designed to be 1.5 times the working pressure (approximately 24 MPa) to ensure sealing reliability under high pressure and avoid failure under vibration.
[0054] As a preferred embodiment of this invention, both the evaporation frame 11 and the air-cooling frame 21 are made of 06Cr19Ni10 stainless steel. The overall structure has good corrosion resistance and mechanical strength, ensuring stability and sealing, and avoiding damage caused by vibration and expansion.
[0055] As a preferred embodiment of this example, all of the above "welding" uses laser-arc hybrid welding. After welding, the weld is subjected to 100% radiographic testing (RT) and penetrant testing (PT). The welding wire is selected to match the material to be welded, and the weld joint is heat-treated to eliminate residual stress.
[0056] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A carbon dioxide heat pump evaporator and gas cooler system, characterized by: Including evaporators and air coolers; The evaporator includes an evaporation frame and at least two evaporation heat exchange modules. Each evaporation heat exchange module has the same structure and is independent of each other. Each evaporation heat exchange module is arranged in a direction perpendicular to the evaporation blowing direction. Each evaporation heat exchange module includes at least two evaporation heat exchange units. Each evaporation heat exchange unit has the same structure and is independent of each other. Each evaporation heat exchange unit is arranged in the evaporation blowing direction. Each evaporation heat exchange unit includes a plurality of parallel evaporation heat exchange tubes. The evaporation heat exchange tubes are fixedly mounted on the evaporation frame. The air cooler includes an air-cooled frame and at least two air-cooled heat exchange modules. Each air-cooled heat exchange module has the same structure and is independent of the others. Each air-cooled heat exchange module is arranged in a direction perpendicular to the air-cooled airflow direction. Each air-cooled heat exchange module includes at least two air-cooled heat exchange units. Each air-cooled heat exchange unit has the same structure and is independent of the others. Each air-cooled heat exchange unit is arranged in the air-cooled airflow direction. Each air-cooled heat exchange unit includes a plurality of parallel air-cooled heat exchange tubes. The air-cooled heat exchange tubes are fixedly mounted on the air-cooled frame.
2. The carbon dioxide heat pump evaporator and gas cooler system of claim 1, wherein: The evaporative heat exchange tube includes an evaporative heat exchange base tube and a plurality of evaporative heat exchange fins, each of which is fixedly sleeved on the evaporative heat exchange base tube in parallel with each other; the air-cooled heat exchange tube includes an air-cooled heat exchange base tube and a plurality of air-cooled heat exchange fins, each of which is fixedly sleeved on the air-cooled heat exchange base tube in parallel with each other.
3. The carbon dioxide heat pump evaporator and gas cooler system of claim 2, wherein: The evaporative heat exchange base tube has an inner diameter of 8.32 mm to 9.32 mm and a wall thickness of 0.5 mm to 0.9 mm; the air-cooled heat exchange base tube has an inner diameter of 8.32 mm to 9.32 mm and a wall thickness of 0.5 mm to 0.9 mm.
4. The carbon dioxide heat pump evaporator and gas cooler system of claim 2, wherein: Both the evaporative heat exchange base tube and the air-cooled heat exchange base tube are seamless stainless steel tubes.
5. The carbon dioxide heat pump evaporator and gas cooler system of claim 4, wherein: Both the evaporative heat exchange base tube and the air-cooled heat exchange base tube are 06Cr19Ni10 stainless steel tubes.
6. The carbon dioxide heat pump evaporator and gas cooler system of claim 2, wherein: Both the evaporative heat exchange fins and the air-cooled heat exchange fins are hydrophilic aluminum foil sheets.
7. The carbon dioxide heat pump evaporator and air cooler system of claim 2, wherein: The thickness of the evaporative heat exchange fins and the thickness of the air-cooled heat exchange fins are both 0.11 mm to 0.12 mm; the distance between any two adjacent evaporative heat exchange fins on any one of the evaporative heat exchange base tubes is 1.5 mm to 2.5 mm; the distance between any two adjacent air-cooled heat exchange fins on any one of the air-cooled heat exchange base tubes is 1.5 mm to 2.5 mm.
8. The carbon dioxide heat pump evaporator and air cooler system of claim 2, wherein: The evaporative heat exchange fins are expanded and connected to the evaporative heat exchange base tube; the air-cooled heat exchange fins are expanded and connected to the air-cooled heat exchange base tube.
9. The carbon dioxide heat pump evaporator and gas cooler system of claim 1, wherein: The evaporation heat exchange module also includes a liquid distributor and a gas collecting pipe. The liquid distributor has a main channel and several branch channels inside. Each branch channel corresponds to one of the evaporation heat exchange tubes. One end of each branch channel is fixedly connected to and communicates with the inlet of the evaporation heat exchange tube. One end of the main channel is connected to the other end of each branch channel. The other end of the main channel is used to communicate with the liquid supply pipeline. The gas collecting pipe is connected to the outlet of each evaporation heat exchange tube. A first threaded joint is fixedly provided on the middle part of the gas collecting pipe. The first threaded joint is used to communicate with the gas outlet pipeline.
10. The carbon dioxide heat pump evaporator and air cooler system of claim 1, wherein: The gas cooling heat exchange module further comprises a gas inlet pipe and a liquid outlet pipe, the gas inlet pipe is communicated with the inlets of the gas cooling heat exchange pipes, and the liquid outlet pipe is communicated with the outlets of the gas cooling heat exchange pipes; a second threaded joint is fixedly arranged on the middle part of the gas inlet pipe, the second threaded joint is used for being communicated with a gas supply pipeline, and a third threaded joint is fixedly arranged on the middle part of the liquid outlet pipe, the third threaded joint is used for being communicated with a liquid outlet pipeline.