Multi-source heat dissipation air conditioning system combining multi-link and evaporative cooling

Abstract

The utility model relates to evaporative cooler and geothermal pipeline technical field especially, more source heat dissipation air conditioning system of combination of multi -connected machine and evaporative cooling, including refrigeration cycle module and cooling water module, the refrigeration cycle module includes evaporimeter, cooling tower and refrigerant - water heat exchanger, the output of evaporimeter with cooling tower heat pipe entrance intercommunication in cooling tower, cooling tower heat pipe export with the input of evaporimeter intercommunication, the output of evaporimeter with the heat exchanger heat pipe entrance intercommunication in refrigerant - water heat exchanger, the heat exchanger heat pipe export with the input of evaporimeter intercommunication, the cooling water module includes ground -buried pipeline, the input of ground -buried pipeline with cooling water export intercommunication, the output of ground -buried pipeline with cooling water import intercommunication, the utility model discloses through the coupling design of cooling tower and ground -buried pipeline, refrigerant - water heat exchanger, realizes the matching use of air energy, geothermal energy.

Description

Technical Field

[0001] This utility model relates to the field of evaporative cooler and geothermal pipeline technology, and in particular to a multi-source heat dissipation air conditioning system that combines multi-split air conditioning with evaporative cooling. Background Technology

[0002] Currently, the demands on air conditioning systems in the building and industrial sectors are becoming increasingly stringent, and traditional air conditioning technologies are struggling to meet these needs. While multi-split systems offer flexible control and good part-load performance, their condenser heat dissipation efficiency decreases in high-temperature environments, leading to a significant reduction in energy efficiency. Evaporative cooling technology, while offering clear energy-saving advantages, is highly dependent on ambient humidity, resulting in significantly reduced cooling effectiveness in high-humidity areas. Especially in locations with extremely high heat dissipation requirements, such as data centers and communication base stations, traditional air conditioning systems cannot guarantee efficient heat dissipation or achieve energy-saving operation, leading to persistently high energy consumption and impacting equipment stability.

[0003] Against this backdrop, this patent aims to provide a multi-source heat dissipation air conditioning system that combines multi-split air conditioning with evaporative cooling. By organically combining the stable cooling and heating capabilities of the multi-split system with the energy-saving advantages of evaporative cooling technology, it fully leverages the strengths of both while compensating for their respective weaknesses. This system can intelligently switch operating modes or work in tandem based on different environmental humidity, temperature, and load demands, achieving efficient heat dissipation, energy-saving operation, and reducing operating costs and energy consumption. Simultaneously, thanks to its innovative multi-source heat dissipation design, the system's adaptability to various environmental conditions is significantly improved. It can operate stably in both dry, high-temperature regions and humid, hot areas, meeting the increasing performance demands of air conditioning systems in various locations such as data centers, commercial buildings, and residences, providing strong support for achieving energy conservation and emission reduction goals.

[0004] Based on the above reasons, this utility model designs a multi-source heat dissipation air conditioning system that combines multi-split air conditioning with evaporative cooling. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a multi-source heat dissipation air conditioning system that combines multi-split air conditioning with evaporative cooling. The refrigerant flowing out of the evaporator has a flexible circulation path, and can selectively exchange heat via a cooling tower or a refrigerant-water heat exchanger according to actual operating conditions. It is then circulated back to the evaporator via a refrigerant pump. Through the coupled design of the cooling tower, underground pipelines, and refrigerant-water heat exchanger, the system achieves the matched utilization of air energy and geothermal energy.

[0006] To achieve the objectives of this utility model, the technical solution adopted is as follows: This utility model discloses a multi-source heat dissipation air conditioning system combining multi-split air conditioning and evaporative cooling, including a refrigeration cycle module and a cooling water module. The refrigeration cycle module includes an evaporator, a cooling tower, and a refrigerant-water heat exchanger. The output end of the evaporator is connected to the inlet of the cooling tower heat pipe in the cooling tower, and the outlet of the cooling tower heat pipe is connected to the input end of the evaporator. The output end of the evaporator is connected to the inlet of the heat exchanger heat pipe in the refrigerant-water heat exchanger, and the outlet of the heat exchanger heat pipe is connected to the input end of the evaporator. The cooling water module includes a buried pipeline. The cooling water inlet of the refrigerant-water heat exchanger is connected to a water storage tank at the bottom of the cooling tower, the cooling water outlet of the refrigerant-water heat exchanger is connected to a spray pipe in the cooling tower, the input end of the buried pipeline is connected to the cooling water outlet of the refrigerant-water heat exchanger, and the output end of the buried pipeline is connected to the cooling water inlet of the refrigerant-water heat exchanger.

[0007] The output end of the evaporator is connected to the inlet of the cooling tower heat pipe in the cooling tower through a first refrigerant output pipe, and a first expansion valve is provided on the first refrigerant output pipe; the outlet of the cooling tower heat pipe is connected to the inlet and outlet of the evaporator through a first refrigerant input pipe, and a refrigerant pump is provided on the first refrigerant input pipe; a cooling tower fan is provided above the cooling tower heat pipe.

[0008] The first refrigerant output pipe between the first expansion valve and the evaporator output end is connected to one end of the second refrigerant output pipe, and the other end of the second refrigerant output pipe is connected to the heat exchanger heat pipe inlet of the refrigerant-water heat exchanger. A second expansion valve is provided on the second refrigerant output pipe. The first refrigerant input pipe between the cooling tower heat pipe outlet and the refrigerant pump is connected to one end of the second refrigerant input pipe, and the other end of the second refrigerant input pipe is connected to the heat exchanger heat pipe outlet. A third expansion valve is provided on the second refrigerant input pipe.

[0009] The water storage tank is connected to the cooling water inlet of the refrigerant-water heat exchanger via a first cooling water output pipe. A second water pump is provided on the side of the first cooling water output pipe near the water storage tank. A sixth expansion valve is provided between the second water pump and the cooling water inlet of the refrigerant-water heat exchanger. The cooling water outlet of the refrigerant-water heat exchanger is connected to the spray pipe via a first cooling water input pipe. A first water pump is provided on the side of the first cooling water input pipe near the refrigerant-water heat exchanger. A seventh expansion valve is provided on the first cooling water input pipe between the first water pump and the spray pipe.

[0010] One end of the first cooling water inlet pipe and the second cooling water inlet pipe between the first water pump and the seventh expansion valve are connected, and the other end of the second cooling water inlet pipe is connected to the inlet end of the buried pipe. A fourth expansion valve is provided on the second cooling water inlet pipe. One end of the first cooling water outlet pipe and the second cooling water outlet pipe between the sixth expansion valve and the cooling water inlet of the refrigerant-water heat exchanger are connected, and the other end of the second cooling water outlet pipe is connected to the outlet end of the buried pipe. A fifth expansion valve is provided on the second cooling water outlet pipe.

[0011] The beneficial effects of this utility model are as follows:

[0012] (1) The refrigerant flowing out of the evaporator in this utility model has a flexible circulation path. It can selectively exchange heat through a cooling tower or a refrigerant-water heat exchanger according to actual working conditions, and then be circulated back to the evaporator through a refrigerant pump. Through the coupling design of the cooling tower, underground pipeline and refrigerant-water heat exchanger, the matching utilization of air energy and geothermal energy can be realized.

[0013] (2) This utility model achieves multi-source heat dissipation of multi-unit air conditioners and evaporative coolers through diversified operation strategies and path switching, which significantly improves the system's adaptability and operating efficiency under all climate conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] In the attached diagram: 1. Evaporator; 2. First expansion valve; 3. Cooling tower; 4. Refrigerant pump; 5. Second expansion valve; 6. Refrigerant-water heat exchanger; 7. Third expansion valve; 8. First water pump; 9. Fourth expansion valve; 10. Buried pipeline; 11. Fifth expansion valve; 12. Second water pump; 13. Sixth expansion valve; 14. Seventh expansion valve; 15. First refrigerant output channel; 16. First refrigerant input channel; 17. Second refrigerant output channel; 18. Second refrigerant input channel; 19. First cooling water output channel; 20. First cooling water input channel; 21. Second cooling water input channel; 22. Second cooling water output channel; 31. Cooling tower heat pipe; 32. Water storage tank; 33. Spray pipe; 34. Cooling tower fan. Detailed Implementation

[0016] The present invention will be further described below:

[0017] Please see Figure 1 ,

[0018] This utility model discloses a multi-source heat dissipation air conditioning system combining multi-split air conditioning and evaporative cooling, including a refrigeration cycle module and a cooling water module. The refrigeration cycle module includes an evaporator 1, a cooling tower 3, and a refrigerant-water heat exchanger 6. The output end of the evaporator 1 is connected to the inlet of the cooling tower heat pipe 31 in the cooling tower 3, and the outlet of the cooling tower heat pipe 31 is connected to the input end of the evaporator 1. The output end of the evaporator 1 is connected to the inlet of the heat exchanger heat pipe 61 in the refrigerant-water heat exchanger 6, and the outlet of the heat exchanger heat pipe 61 is connected to the input end of the evaporator 1. The cooling water module includes a buried pipe 10. The cooling water inlet of the refrigerant-water heat exchanger 6 is connected to the water storage tank 32 at the bottom of the cooling tower 3, and the cooling water outlet of the refrigerant-water heat exchanger 6 is connected to the spray pipe 33 inside the cooling tower 3. The input end of the buried pipeline 10 is connected to the cooling water outlet of the refrigerant-water heat exchanger 6, and the output end of the buried pipeline 10 is connected to the cooling water inlet of the refrigerant-water heat exchanger 6. The refrigerant flowing out of the evaporator 1 has a flexible circulation path and can selectively exchange heat through the cooling tower 3 or the refrigerant-water heat exchanger 6 according to actual operating conditions. Then, it is circulated and transported back to the evaporator 1 by the refrigerant pump 4. Through the coupled design of the cooling tower 3, the buried pipeline 10, and the refrigerant-water heat exchanger 6, the matching utilization of air energy and geothermal energy is achieved.

[0019] Furthermore, the output end of the evaporator 1 is connected to the inlet of the cooling tower heat pipe 31 inside the cooling tower 3 via a first refrigerant output pipe 15, and a first expansion valve 2 is provided on the first refrigerant output pipe 15; the outlet of the cooling tower heat pipe 31 is connected to the inlet and outlet ends of the evaporator 1 via a first refrigerant input pipe 16, and a refrigerant pump 4 is provided on the first refrigerant input pipe 16; a cooling tower fan 34 is provided above the cooling tower heat pipe 31. In the cool spring and autumn seasons, the system automatically switches to the independent operation mode of the cooling tower fan, relying on natural convection. The method, combined with mechanical ventilation, achieves heat dissipation with lower energy consumption. The specific working process is as follows: the first expansion valve 2 and the refrigerant pump 4 are opened, and the refrigerant is delivered from the evaporator 1 to the inlet of the cooling tower heat pipe 31 through the first refrigerant output channel 15. During the process of passing through the cooling tower heat pipe 31, the cold air is blown downward by the cooling tower fan 34 above and exchanges heat with the packing below. The cooling tower heat pipe 31 has fins on the outside to enhance heat exchange. After that, the refrigerant returns to the input end of the evaporator 1 from the outlet of the cooling tower heat pipe 31 through the first refrigerant input channel 16.

[0020] Furthermore, one end of the first refrigerant output pipe 15 between the first expansion valve 2 and the output end of the evaporator 1 is connected to one end of the second refrigerant output pipe 17, and the other end of the second refrigerant output pipe 17 is connected to the inlet of the heat exchanger heat pipe 61 of the refrigerant-water heat exchanger 6. A second expansion valve 5 is provided on the second refrigerant output pipe 17; one end of the first refrigerant input pipe 16 between the outlet of the cooling tower heat pipe 31 and the refrigerant pump 4 is connected to one end of the second refrigerant input pipe 18, and the other end of the second refrigerant input pipe 18 is connected to the outlet of the heat exchanger heat pipe 61. A third expansion valve 7 is provided on the second refrigerant input pipe 18.

[0021] The water storage tank 32 is connected to the cooling water inlet of the refrigerant-water heat exchanger 6 via a first cooling water output pipe 19. A second water pump 12 is provided on the side of the first cooling water output pipe 19 near the water storage tank 32. A sixth expansion valve 13 is provided between the second water pump 12 and the cooling water inlet of the refrigerant-water heat exchanger 6. The cooling water outlet of the refrigerant-water heat exchanger 6 is connected to the spray pipe 33 via a first cooling water input pipe 20. A first water pump 8 is provided on the side of the first cooling water input pipe 20 near the refrigerant-water heat exchanger 6. A seventh expansion valve 14 is provided on the first cooling water input pipe 20 between the first water pump 8 and the spray pipe 33.

[0022] The first cooling water inlet pipe 20 and the second cooling water inlet pipe 21 between the first water pump 8 and the seventh expansion valve 14 are connected at one end, and the other end of the second cooling water inlet pipe 21 is connected to the inlet of the buried pipe 10. The second cooling water inlet pipe 21 is provided with a fourth expansion valve 9. The sixth expansion valve 13 and the cooling water inlet of the refrigerant-water heat exchanger 6 are connected at one end of the first cooling water outlet pipe 19 and the second cooling water outlet pipe 22. The other end of the second cooling water outlet pipe 22 is connected to the outlet of the buried pipe 10. The second cooling water outlet pipe 22 is provided with a fifth expansion valve 11.

[0023] Under hot and humid conditions, the system intelligently activates the underground pipeline auxiliary cooling mode, utilizing the relatively stable low-temperature environment underground to effectively reduce the cooling water temperature and improve heat dissipation efficiency. The specific working process is as follows: the fourth expansion valve 9 and the fifth expansion valve 11 are opened, and the cooling water is input from the output end of the refrigerant-water heat exchanger 6 by the first water pump 8 through the first cooling water input pipe 20 and the second cooling water input pipe 21 to the inlet of the underground pipeline 10. After passing through the underground pipeline 10, the water is sent back to the cooling water inlet of the refrigerant-water heat exchanger 6 from the outlet of the underground pipeline 10 through the second cooling water output pipe 22 and the first cooling water output pipe 19.

[0024] In winter, the underground pipeline 10 and the refrigerant-water heat exchanger 6 operate in parallel. Cooling water is transported through the pipeline to the end spray pipe 33, where it is sprayed to fully contact the internal packing material and exchange heat efficiently with the air at the condenser inlet. After heat exchange, the cooling water flows back to the water storage tank 32 at the bottom of the cooling tower 3, completing the heat exchange cycle. Specifically, the cooling water from the water storage tank 32 at the bottom of the cooling tower 3 is transported by the second water pump 12 through the first cooling water output pipeline 19 to the cooling water inlet of the refrigerant-water heat exchanger 6, and then sent to the parallel section (refrigerant-water heat exchanger 6, second cooling water input pipeline 21, underground pipeline 10, and second cooling water output pipeline 22). The cooling water from the parallel section is then sent through the first cooling water input channel 20 to the spray pipe 33 of the cooling tower 3, where it is sprayed onto the internal packing material and exchanges heat with the air at the condenser inlet, before returning to the water storage tank 32 at the bottom of the cooling tower, completing the cycle. In winter mode, cooling towers are used to cool the ground source heat pump and refrigerant water heat exchanger, cooling the building while achieving thermal balance of the underground soil.

[0025] Through the above-mentioned diversified operation strategies and path switching, the system realizes the coordinated multi-source heat dissipation of multi-split units and evaporative coolers, significantly improving the system's adaptability and operational efficiency under all climate conditions, enabling the use of refrigerant pumps to cool buildings throughout the year, and making up for the shortcomings of traditional refrigerant pumps that cannot operate under high-temperature conditions in summer.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A multi-source heat dissipation air conditioning system combining multi-split air conditioning and evaporative cooling, characterized in that: Includes a refrigeration cycle module and a cooling water module. The refrigeration cycle module includes an evaporator (1), a cooling tower (3), and a refrigerant-water heat exchanger (6). The output end of the evaporator (1) is connected to the inlet of the cooling tower heat pipe (31) in the cooling tower (3), and the outlet of the cooling tower heat pipe (31) is connected to the input end of the evaporator (1). The output end of the evaporator (1) is connected to the inlet of the heat exchanger heat pipe (61) in the refrigerant-water heat exchanger (6), and the outlet of the heat exchanger heat pipe (61) is connected to the input end of the evaporator (1). The cooling water module includes a buried pipe (10), the cooling water inlet of the refrigerant-water heat exchanger (6) is connected to the water storage tank (32) at the bottom of the cooling tower (3), the cooling water outlet of the refrigerant-water heat exchanger (6) is connected to the spray pipe (33) inside the cooling tower (3), the input end of the buried pipe (10) is connected to the cooling water outlet of the refrigerant-water heat exchanger (6), and the output end of the buried pipe (10) is connected to the cooling water inlet of the refrigerant-water heat exchanger (6).

2. The multi-source heat dissipation air conditioning system combining multi-split air conditioning and evaporative cooling according to claim 1, characterized in that: The output end of the evaporator (1) is connected to the inlet of the cooling tower heat pipe (31) in the cooling tower (3) through the first refrigerant output pipe (15). The first refrigerant output pipe (15) is provided with a first expansion valve (2). The outlet of the cooling tower heat pipe (31) is connected to the inlet and outlet of the evaporator (1) through the first refrigerant input pipe (16). The first refrigerant input pipe (16) is provided with a refrigerant pump (4). The cooling tower heat pipe (31) is provided with a cooling tower fan (34) above it.

3. A multi-source heat dissipation air conditioning system combining multi-split air conditioning and evaporative cooling according to claim 2, characterized in that: The first refrigerant output pipe (15) between the first expansion valve (2) and the output end of the evaporator (1) is connected to one end of the second refrigerant output pipe (17), and the other end of the second refrigerant output pipe (17) is connected to the inlet of the heat exchanger heat pipe (61) of the refrigerant-water heat exchanger (6). The second refrigerant output pipe (17) is provided with a second expansion valve (5); the first refrigerant input pipe (16) between the outlet of the cooling tower heat pipe (31) and the refrigerant pump (4) is connected to one end of the second refrigerant input pipe (18), and the other end of the second refrigerant input pipe (18) is connected to the outlet of the heat exchanger heat pipe (61). The second refrigerant input pipe (18) is provided with a third expansion valve (7).

4. A multi-source heat dissipation air conditioning system combining multi-split air conditioning and evaporative cooling according to claim 3, characterized in that: The water storage tank (32) is connected to the cooling water inlet of the refrigerant-water heat exchanger (6) through the first cooling water output pipe (19). A second water pump (12) is provided on the side of the first cooling water output pipe (19) near the water storage tank (32). A sixth expansion valve (13) is provided between the second water pump (12) and the cooling water inlet of the refrigerant-water heat exchanger (6). The cooling water outlet of the refrigerant-water heat exchanger (6) is connected to the spray pipe (33) through the first cooling water input pipe (20). A first water pump (8) is provided on the side of the first cooling water input pipe (20) near the refrigerant-water heat exchanger (6). A seventh expansion valve (14) is provided on the first cooling water input pipe (20) between the first water pump (8) and the spray pipe (33).

5. A multi-source heat dissipation air conditioning system combining multi-split air conditioning and evaporative cooling according to claim 4, characterized in that: The first cooling water input pipe (20) between the first water pump (8) and the seventh expansion valve (14) is connected at one end to the second cooling water input pipe (21), and the other end of the second cooling water input pipe (21) is connected to the input end of the underground pipe (10). The second cooling water input pipe (21) is provided with a fourth expansion valve (9). The first cooling water output pipe (19) between the sixth expansion valve (13) and the cooling water inlet of the refrigerant-water heat exchanger (6) is connected at one end to the second cooling water output pipe (22), and the other end of the second cooling water output pipe (22) is connected to the output end of the underground pipe (10). The second cooling water output pipe (22) is provided with a fifth expansion valve (11).

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