Three-condensation integrated heat-pipe backboard air conditioning system

Abstract

The utility model discloses a three-condensation integrated heat pipe backboard air conditioning system, including the solar photovoltaic module, evaporative cooling module, intermediate heat exchanger module and heat pipe backboard air conditioning module that are connected in proper order. The utility model discloses three-condensation integrated heat pipe backboard air conditioning system has the characteristics of low energy consumption, high energy efficiency ratio.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning system technology, specifically relating to a three-condenser integrated heat pipe backplate air conditioning system. Background Technology

[0002] In recent years, with the rapid development of big data, Internet+, and the 5G era, and under the new national "new infrastructure" initiative, the demand for data centers has grown exponentially. However, this has brought with it increasingly prominent energy consumption issues, especially for infrastructure primarily reliant on air conditioning, which has attracted widespread social attention. Faced with the high heat dissipation and year-round cooling requirements of data centers, the high energy consumption of traditional mechanical cooling methods runs counter to the national "dual-carbon" strategy, and traditional air-cooling methods are no longer sufficient to meet the cooling requirements of servers. Utility Model Content

[0003] The purpose of this invention is to provide a three-condenser integrated heat pipe backplate air conditioning system, which features low energy consumption and high energy efficiency.

[0004] The technical solution adopted in this utility model is a three-condenser integrated heat pipe backplate air conditioning system, which includes a solar photovoltaic module, an evaporative cooling module, an intermediate heat exchanger module and a heat pipe backplate air conditioning module connected in sequence.

[0005] The present invention is further characterized in that: The evaporative cooling module includes a unit housing. An air inlet is provided on one side wall of the unit housing. Inside the unit housing, from near to far from the air inlet, there are a coarse filter, a semiconductor cooling chip, a vertical tube indirect evaporative cooling section, and a packing direct evaporative cooling section. The top walls of the unit housing above the vertical tube indirect evaporative cooling section and the packing direct evaporative cooling section are respectively provided with exhaust port A and exhaust port B. The semiconductor cooling chip, the riser-type indirect evaporation cooling section, and the filler direct evaporation cooling section are all connected to the solar photovoltaic module; Both the vertical tube indirect evaporation cooling section and the packed direct evaporation cooling section are connected to the intermediate heat exchanger module.

[0006] The vertical indirect evaporative cooling section includes, from top to bottom, an axial flow fan A, an air-cooled condenser, a baffle plate A, a spray device A, vertical heat exchange tubes, and a water collection tank A; a circulating water pump A is installed in the water collection tank A, and the circulating water pump A is connected to the spray device A through a water pipe A; a float valve A is also installed in the water collection tank A; the axial flow fan A is located below the exhaust port A; The air-cooled condenser is also connected to the intermediate heat exchanger module.

[0007] The direct evaporation cooling section with packing includes, from top to bottom, an axial flow fan B, a baffle plate B, a spray device B, packing, and a water collection tank B; a refrigerant coil is inserted into the packing; a water-cooled coil, a circulating water pump B, and a float valve B are installed in the water collection tank B; the circulating water pump B is connected to the spray device B through a water pipe B; one end of the water-cooled coil is connected to the refrigerant coil, and the other end of the water-cooled coil is connected to the intermediate heat exchanger module; the refrigerant coil is connected to the intermediate heat exchanger module.

[0008] The intermediate heat exchanger module includes an intermediate heat exchanger, a three-way valve A, a three-way valve B, a four-way valve A, and a four-way valve B; The first port of the three-way valve B is connected to the liquid inlet of the air-cooled condenser through the first pipe; the second port of the three-way valve B is connected to the second port of the four-way valve B through the second pipe; and the third port of the three-way valve B is connected to the first outlet of the intermediate heat exchanger through the third pipe. A compressor is also installed on the third pipe. The first port of the three-way valve A is connected to the liquid outlet of the air-cooled condenser through the fourth pipe; the second port of the three-way valve A is connected to the second port of the four-way valve A through the fifth pipe; the third port of the three-way valve A is connected to the first inlet of the intermediate heat exchanger through the sixth pipe; a liquid receiver B and a refrigerant pump B are also installed on the fifth pipe; a throttling valve is also installed on the sixth pipe. The first port of the four-way valve B is connected to the second inlet of the intermediate heat exchanger through the seventh pipe; the second port of the four-way valve B is connected to the second port of the three-way valve B through the second pipe; the third port of the four-way valve B is connected to the heat pipe back panel air conditioning module; and the fourth port of the four-way valve B is connected to the liquid inlet of the refrigerant coil through the eighth pipe. The first port of the four-way valve A is connected to the second outlet of the intermediate heat exchanger through the ninth pipe; the second port of the four-way valve A is connected to the second port of the three-way valve A through the fifth pipe; the third port of the four-way valve A is connected to the heat pipe back panel air conditioning module; the fourth port of the four-way valve A is connected to the liquid outlet of the water-cooled coil through the tenth pipe; a liquid receiver A and a refrigerant pump A are also installed on the tenth pipe.

[0009] The heat pipe backplane air conditioning module includes refrigerant gas pipes and refrigerant liquid pipes, as well as several loop heat pipe backplane air conditioners installed in the computer room. Each loop heat pipe backplane air conditioner is connected to the third port of four-way valve B through a refrigerant gas pipe; each loop heat pipe backplane air conditioner is connected to the third port of four-way valve A through a refrigerant liquid pipe.

[0010] The heat pipe backplane air conditioner includes a heat pipe backplane, which contains refrigerant pipes. One side of the heat pipe backplane is attached to the leeward side of the server, and several backplane fans are installed on the other side of the heat pipe backplane. One end of the refrigerant pipe in each heat pipe backplane is connected to a refrigerant gas pipe, and the other end of the refrigerant pipe in each heat pipe backplane is connected to a refrigerant liquid pipe.

[0011] The solar photovoltaic module includes a solar photovoltaic panel, a photovoltaic controller, and a battery connected in sequence. The photovoltaic controller is also connected to an inverter. The solar photovoltaic panel is installed at an angle on the top of the unit casing. An elbow is provided at the exhaust port A, and the exhaust port A is oriented towards the solar photovoltaic panel. The semiconductor cooling chip, axial fan A, circulating water pump A, axial fan B, and circulating water pump B are all connected to the inverter.

[0012] The beneficial effects of this utility model are: 1. This utility model adopts an integrated unit that can be prefabricated, which can save space, facilitate installation and shorten the construction period; it can switch between multiple operating modes by adjusting valves, maximize the use of natural cold source, and supplement it with mechanical refrigeration unit, which can greatly improve the energy utilization efficiency of data center and reduce data center PUE.

[0013] 2. This utility model arranges a solar photovoltaic panel on the top side of the shell to generate electricity to power the semiconductor cooling chip, which saves power consumption and also pre-cools the outdoor fresh air.

[0014] 3. The vertical indirect evaporative cooling section of this invention changes the airflow direction by setting up pipes, blowing secondary air onto the surface of the solar photovoltaic panel to remove surface heat, thereby reducing the temperature of the photovoltaic controller, battery, and inverter, and improving conversion efficiency. At the same time, blowing secondary air onto the solar panel surface also reduces the deposition of airborne particles on the panel, providing a certain degree of protection for the solar photovoltaic panel.

[0015] 4. The outside of the vertical heat exchange tube of this utility model is a primary air flow channel, which is relatively wide and easy to clean and maintain. The inside of the tube is a secondary air and circulating water flow channel. Due to the self-flushing effect of the circulating water from top to bottom, the problem of heat exchange tube blockage can be greatly alleviated.

[0016] 5. In this invention, the air-cooled condenser is arranged below the axial flow fan of the vertical tube indirect evaporation cooling section, and the air-cooled condenser is cooled by secondary air under the action of the fan.

[0017] 6. The intermediate heat exchanger module of this utility model is equipped with a four-way valve and a three-way valve, which can switch between multiple modes. The natural cold source mode and the active cooling mode can be operated simultaneously without affecting each other.

[0018] 7. The computer room of this utility model uses a loop heat pipe backplane air conditioner to cool the server. The heat pipe backplane is directly attached to the data cabinet. After the air inside the computer room absorbs the heat from the chip, it directly exchanges heat through the refrigerant pipes of the heat pipe backplane air conditioner. The hot air will not overflow, the indoor airflow is more stable, and it is more conducive to the operation and maintenance of the data center.

[0019] 8. The refrigerant in the air conditioner with the circuit heat pipe backplate of this utility model is Freon. The refrigerant has a lower evaporation pressure and evaporation temperature, which allows the refrigeration cycle to proceed spontaneously under the action of the density difference between the refrigerant gas and liquid and the difference in gravity, resulting in high safety.

[0020] 9. The heat pipe backplate of this utility model can be integrated with the server, which can solve the problems of insufficient cooling capacity and limited future server expansion without occupying computer room space, thereby improving the effective utilization rate of the computer room.

[0021] 10. The water-cooling coil of this utility model adopts a bare copper tube, which makes the water film on the surface of the copper tube more uniform and free of dry spots, reducing the possibility of corrosion and scaling.

[0022] 11. The evaporation cooling section of this utility model uses PVC packing, which has the advantages of good moisture absorption, low resistance, good flame retardancy, and long service life.

[0023] 13. The air-cooled condenser of this utility model adopts a corrugated tube, which makes the flow of liquid subject to a certain resistance, increases the heat exchange contact time, and achieves the purpose of enhancing heat transfer.

[0024] 14. In this utility model, the packing evaporation cooling section is coupled with the packing in the middle of the heat exchange coil to form a “coil-packing-coil” configuration. The addition of the packing reduces the temperature of the circulating water, which increases the contact time between the heat exchanger and the circulating water and increases the heat exchange area.

[0025] 15. This utility model can selectively activate the spray device, intermediate heat exchanger, compressor and throttling valve according to the heat load conditions of different seasons, which has a wider range of applications, extends the service life of heat pipes, and makes full use of natural cold sources.

[0026] 16. The outdoor fresh air of this utility model is cooled step by step through semiconductor cooling chip, vertical heat exchange tube and packing, which minimizes the operating energy consumption of compressor and refrigerant pump, and has the characteristics of low energy consumption and high energy efficiency ratio. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the three-condenser integrated heat pipe backplate air conditioning system of this utility model; Figure 2 This is a schematic diagram of the structure of the solar photovoltaic module in the three-condenser integrated heat pipe backplate air conditioning system of this utility model; Figure 3 This is a schematic diagram of the structure of the heat pipe backplate air conditioner in the three-condenser integrated heat pipe backplate air conditioning system of this utility model.

[0028] In the diagram, 1. Air inlet, 2. Coarse filter, 3. Vertical indirect evaporative cooling section, 4. Exhaust port A, 5. Axial fan A, 6. Air-cooled condenser, 7. Baffle plate A, 8. Spray device A, 9. Water pipe A, 10. Vertical heat exchange tube, 11. Float valve A, 12. Circulating water pump A, 13. Water collection tank A, 14. Direct evaporative cooling section, 15. Exhaust port B, 16. Axial fan B, 17. Baffle plate B, 18. Water pipe B, 19. Spray device B, 20. Refrigerant coil, 21. Packing material, 22. Water-cooled coil, 23. Water collection tank B, 24. Circulating water pump B, 25. Float valve B, 26. Solar photovoltaic panel, 27. Photovoltaic controller, 28. Battery, 29. Inverter 30. Semiconductor cooling chip, 31. Receiver A, 32. Refrigerant pump A, 33. Receiver B, 34. Refrigerant pump B, 35. Three-way valve A, 36. Three-way valve B, 37. Throttling valve, 38. Compressor, 39. Intermediate heat exchanger, 40. Four-way valve A, 41. Four-way valve B, 42. Server, 43. Heat pipe backplane, 44. Backplane fan, 45. Refrigerant piping, 46. Computer room, 47. Refrigerant gas pipe, 48. Refrigerant liquid pipe, 49. Unit casing, 50. First pipe, 51. Second pipe, 52. Third pipe, 53. Fourth pipe, 54. Fifth pipe, 55. Sixth pipe, 56. Seventh pipe, 57. Eighth pipe, 58. Ninth pipe, 59. Tenth pipe; a. Liquid refrigerant, b. Gaseous refrigerant, c. Cabinet air intake. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0030] This utility model provides a three-condenser integrated heat pipe back panel air conditioning system, such as Figures 1-3 As shown, it includes a solar photovoltaic module, an evaporative cooling module, an intermediate heat exchanger module, and a heat pipe backplate air conditioning module connected in sequence.

[0031] The evaporative cooling module includes a unit housing 49. An air inlet 1 is provided on one side wall of the unit housing 49. Inside the unit housing 49, from near to far from the air inlet 1, a coarse filter 2, a semiconductor cooling chip 30, a vertical tube indirect evaporative cooling section 3, and a packing direct evaporative cooling section 14 are arranged in sequence. An exhaust port A4 and an exhaust port B15 are respectively provided on the top wall of the unit housing 49 above the vertical tube indirect evaporative cooling section 3 and the packing direct evaporative cooling section 14. The semiconductor cooling chip 30, the vertical tube indirect evaporation cooling section 3, and the filler direct evaporation cooling section 14 are all connected to the solar photovoltaic module. Both the vertical tube indirect evaporative cooling section 3 and the packed direct evaporative cooling section 14 are connected to the intermediate heat exchanger module.

[0032] The vertical indirect evaporative cooling section 3 includes, from top to bottom, an axial flow fan A5, an air-cooled condenser 6, a baffle plate A7, a spray device A8, a vertical heat exchange tube 10, and a water collection tank A13; a circulating water pump A12 is installed in the water collection tank A13, and the circulating water pump A12 is connected to the spray device A8 through a water pipe A9; a float valve A11 is also installed in the water collection tank A13; the axial flow fan A5 is located below the exhaust port A4; The sprinkler device A8 includes a water distribution pipe A, which is equipped with several nozzles. The water distribution pipe A is connected to the water pipe A9. The air-cooled condenser 6 is also connected to the intermediate heat exchanger module.

[0033] The direct evaporation cooling section 14 includes, from top to bottom, an axial flow fan B16, a baffle plate B17, a spray device B19, packing 21, and a water collection tank B23; a refrigerant coil 20 is inserted into the packing 21; a water-cooled coil 22, a circulating water pump B24, and a float valve B25 are installed in the water collection tank B23; the circulating water pump B24 is connected to the spray device B19 through a water pipe B18; one end of the water-cooled coil 22 is connected to the refrigerant coil 20, and the other end of the water-cooled coil 22 is connected to the intermediate heat exchanger module; the refrigerant coil 20 is connected to the intermediate heat exchanger module.

[0034] The sprinkler device B19 includes a water distribution pipe B, which is equipped with several nozzles, and the water distribution pipe B is connected to the water pipe B18.

[0035] The intermediate heat exchanger module includes an intermediate heat exchanger 39, a three-way valve A35, a three-way valve B36, a four-way valve A40, and a four-way valve B41; The first port of the three-way valve B36 is connected to the liquid inlet of the air-cooled condenser 6 through the first pipe 50; the second port of the three-way valve B36 is connected to the second port of the four-way valve B41 through the second pipe 51; and the third port of the three-way valve B36 is connected to the first outlet of the intermediate heat exchanger 39 through the third pipe 52. A compressor 38 is also installed on the third pipe 52. The first port of the three-way valve A35 is connected to the liquid outlet of the air-cooled condenser 6 via the fourth pipe 53; the second port of the three-way valve A35 is connected to the second port of the four-way valve A40 via the fifth pipe 54; and the third port of the three-way valve A35 is connected to the first inlet of the intermediate heat exchanger 39 via the sixth pipe 55. A liquid receiver B33 and a refrigerant pump B34 are also installed on the fifth pipe 54; and a throttling valve 37 is also installed on the sixth pipe 55. The first port of the four-way valve B41 is connected to the second inlet of the intermediate heat exchanger 39 via the seventh pipe 56; the second port of the four-way valve B41 is connected to the second port of the three-way valve B36 via the second pipe 51; the third port of the four-way valve B41 is connected to the heat pipe back panel air conditioning module; and the fourth port of the four-way valve B41 is connected to the liquid inlet of the refrigerant coil 20 via the eighth pipe 57. The first port of the four-way valve A40 is connected to the second outlet of the intermediate heat exchanger 39 via the ninth pipe 58. The second port of the four-way valve A40 is connected to the second port of the three-way valve A35 via the fifth pipe 54. The third port of the four-way valve A40 is connected to the heat pipe back panel air conditioning module. The fourth port of the four-way valve A40 is connected to the liquid outlet of the water-cooled coil 22 via the tenth pipe 59. The tenth pipe 59 is also equipped with a liquid receiver A31 and a refrigerant pump A32.

[0036] The heat pipe backplane air conditioning module includes a refrigerant gas pipe 47, a refrigerant liquid pipe 48, and several loop heat pipe backplane air conditioners installed in the machine room 46. Each loop heat pipe backplane air conditioner is connected to the third port of the four-way valve B41 through the refrigerant gas pipe 47; each loop heat pipe backplane air conditioner is connected to the third port of the four-way valve A40 through the refrigerant liquid pipe 48.

[0037] The heat pipe backplane air conditioner includes a heat pipe backplane 43, and a refrigerant pipe 45 is provided inside the heat pipe backplane 43. One side of the heat pipe backplane 43 is attached to the leeward side of the server 42, and several backplane fans 44 are provided on the other side of the heat pipe backplane 43. One end of the refrigerant pipe 45 in each heat pipe backplane 43 is connected to a refrigerant gas pipe 47, and the other end of the refrigerant pipe 45 in each heat pipe backplane 43 is connected to a refrigerant liquid pipe 48.

[0038] The solar photovoltaic module includes a solar photovoltaic panel 26, a photovoltaic controller 27 and a battery 28 connected in sequence. The photovoltaic controller 27 is also connected to an inverter 29. The solar photovoltaic panel 26 is inclinedly installed on the top of the unit casing. An elbow is provided at the exhaust port A4, and the exhaust port A4 is set towards the solar photovoltaic panel 26. The semiconductor cooling chip 30, axial flow fan A5, circulating water pump A12, axial flow fan B16 and circulating water pump B24 are all connected to the inverter 29.

[0039] This utility model discloses a three-condenser integrated heat pipe backplate air conditioning system, the working principle of which is as follows: (1) In summer, the outdoor temperature is high and the wet bulb temperature is also high. The unit operates in mixed mode. At this time, the refrigerant pump A32, the liquid receiver A31 and the mechanical refrigeration unit (the mechanical refrigeration unit consists of the air-cooled condenser 6, the compressor 38, the throttle valve 37, the intermediate heat exchanger 39 and the pipes connecting the various components) operate at the same time. The mechanical refrigeration mainly plays the role of supplementing cooling.

[0040] Outdoor fresh air enters the unit casing 49 through air inlet 1, and after being filtered by coarse filter 2 and pre-cooled by semiconductor cooling chip 30, it enters the vertical tube indirect evaporative cooling section 3. At this time, the air is divided into two parts. One part is primary air that passes over the outside of vertical heat exchange tube 10, and the other part is secondary air that passes through the inside of vertical heat exchange tube 10 from bottom to top under the negative pressure of axial flow fan A5 at the top of the unit. It comes into countercurrent contact with the circulating water film from top to bottom to exchange heat and mass, thereby cooling the primary air outside the tube. After heat exchange, the secondary air passes through the baffle plate A7 under the action of the axial flow fan A5, and after exchanging heat with the high-temperature refrigerant in the condenser on the surface of the air-cooled condenser 6, it is blown onto the solar photovoltaic panel 26 through the exhaust port A4, which reduces the deposition of airborne suspended particles on the panel and removes the surface heat. The cooled primary air is sent into the direct evaporation cooling section 14, where the primary air and the water film on the surface of the packing 21 undergo heat and moisture exchange again. The air after heat exchange is discharged into the atmosphere through the exhaust port B15 under the action of the axial flow fan B16, while the cold water falls into the water collection tank B23 under the action of gravity.

[0041] like Figure 1 As shown, the circulating water in the water collection tank B23 is sent to the packing 21 through the water pipe B18 and the spray device B19 under the action of the circulating water pump B24. The primary air exchanges heat and moisture with the water film on the surface of the packing 21, and the refrigerant coil 20 coupled in the packing 21 is cooled. The gaseous refrigerant b in the coil is cooled into a liquid state. The liquid refrigerant a after heat exchange is then condensed and exchanged by the water-cooled coil 22 immersed in the water collection tank B23 under the action of the refrigerant pump A32. It then flows back to the refrigerant pipe 45 at the end of the room through the liquid receiver A31, the tenth pipe 59 and the four-way valve A40, completing the cooling capacity transfer cycle.

[0042] Inside the server room 46, the air intake c of the server rack is cooled by the refrigerant in the refrigerant pipe 45 installed in the heat pipe backplate 43 on the rack exhaust side. The refrigerant absorbs the heat emitted by the server 42 inside the rack and is then discharged outside the server room 46 by the backplate fan 44. The liquid refrigerant a in the refrigerant pipe 45 absorbs heat and vaporizes. The vaporized gaseous refrigerant b flows out of the server room 46 through the refrigerant gas pipe 47 due to the pressure difference. Under the regulation of the four-way valve B41, part of the gaseous refrigerant b is cooled by heat exchange in the intermediate heat exchanger 39. The cooled liquid refrigerant a flows back to the refrigerant pipe 45 at the end of the room through the ninth pipe 58, four-way valve A40, and refrigerant liquid pipe 48 under the action of gravity, completing the cooling capacity transfer cycle. At this time, the air-cooled condenser 6, compressor 38, intermediate heat exchanger 39, throttle valve 37, and the pipes connecting the various components constitute the mechanical refrigeration unit. In the mechanical refrigeration unit, the low-temperature, low-pressure liquid refrigerant first exchanges heat with the gaseous refrigerant b flowing out from the machine room 46 in the intermediate heat exchanger 39, and removes the heat from the gaseous refrigerant b. The low-temperature, low-pressure liquid refrigerant in the mechanical refrigeration unit evaporates into a high-temperature, low-pressure gaseous state, which is then compressed into a high-temperature, high-pressure gaseous refrigerant by the compressor 38. It then flows through the third pipe 52, the three-way valve B36, and the first pipe 50 through the air-cooled condenser 6 to exchange heat with the secondary air in the vertical indirect evaporative cooling section 3. The high-temperature, high-pressure gaseous refrigerant condenses into a low-temperature, high-pressure liquid refrigerant, which then flows through the fourth pipe 53 and the three-way valve A35. Under the action of the throttle valve 37, it forms a low-temperature, low-pressure liquid refrigerant and returns to the intermediate heat exchanger 39 through the sixth pipe 55, completing the cycle.

[0043] Another portion of the gaseous refrigerant b flowing out from the machine room 46 is regulated by the four-way valve B41 and flows into the direct evaporation cooling section 14 through the eighth pipe 57. It exchanges heat with the refrigerant coil 20 coupled with the packing 21 and the water-cooled coil 22 in the water collection tank 23. After heat exchange, the refrigerant condenses from a gaseous state to a liquid state. The liquid refrigerant a, under the action of the fluorine pump A32, flows back to the refrigerant pipe 45 at the end of the room through the liquid receiver A31, the tenth pipe 59, the four-way valve A40, and the refrigerant liquid pipe 48, completing the cooling capacity transfer cycle. This link is the fluorine pump heat pipe cycle.

[0044] (2) In winter, the outdoor ambient temperature is low and the unit operates in dry mode. At this time, the refrigerant pump B34 and the liquid receiver B33 are turned on, while the spray device A8, the spray device B19 and the mechanical refrigeration unit stop operating.

[0045] Outdoor fresh air enters the unit casing 49 through air inlet 1, and after being filtered by coarse filter 2 and pre-cooled by semiconductor refrigeration chip 30, it enters the vertical indirect evaporative cooling section 3. At this time, only the axial flow fan A5 in the vertical indirect evaporative cooling section 3 is in working state. Under the negative pressure of axial flow fan A5, the air passes through vertical heat exchange tube 10, water baffle 7, and exchanges heat with the high-temperature refrigerant in the air-cooled condenser 6 on the surface of the condenser. Then, it is blown to the solar photovoltaic panel 26 through exhaust port 4. The solar photovoltaic panel 26 transmits DC power to the photovoltaic controller 27. The inverter 29 converts the DC power distributed by the photovoltaic controller 27 into AC power for use by the axial flow fan A5.

[0046] The refrigerant circulation process inside the computer room 46 is the same as in summer. The gaseous refrigerant b flowing out of the computer room 46 is regulated by the four-way valve B41. Part of it flows through the second pipe 51 and the three-way valve B36 to exchange heat with the outdoor fresh air in the riser-type indirect evaporative cooling section 3. The condensed liquid refrigerant a is returned to the refrigerant pipe 45 at the indoor end through the fourth pipe 53, the three-way valve A35, the liquid receiver B33, the fifth pipe 54, and the four-way valve A40 under the action of the refrigerant pump B34, thus completing the cooling capacity transfer cycle.

[0047] (3) During the transitional season, the ambient temperature is relatively mild and the unit operates in wet mode. At this time, the refrigerant pump A32, refrigerant pump B34, liquid receiver A31, and liquid receiver B33 are turned on, and the mechanical refrigeration unit stops operating.

[0048] The heat exchange process of the unit casing 49 and the refrigerant circulation process inside the machine room 46 are the same as in summer. The gaseous refrigerant b flowing out of the machine room 46 is condensed and heat exchanged in the air-cooled condenser 6 in the vertical indirect evaporative cooling section 3 under the regulation of the four-way valve B41. After passing through the second pipe 51 and the three-way valve B36, it flows through the air-cooled condenser 6 and exchanges heat with the secondary air in the vertical indirect evaporative cooling section 3. The condensed liquid refrigerant a is returned to the refrigerant pipe 45 at the indoor end under the action of the refrigerant pump B34 through the fourth pipe 53, the three-way valve A35, the liquid receiver B33, the fifth pipe 54, and the four-way valve A40, completing the cooling capacity transfer cycle. Another portion of the gaseous refrigerant b undergoes heat exchange in the packing 21 in the direct evaporation cooling section 14 and the water-cooled coil 22 in the water collection tank B23: it flows into the refrigerant coil 20 through the eighth pipe 57, where the packing 21 coupled with the refrigerant coil 20 evaporates and condenses with the primary air, cooling the gaseous refrigerant b in the refrigerant coil 20 into a liquid state. The liquid refrigerant a, after heat exchange, undergoes water-cooled condensation and heat exchange through the water-cooled coil 22 immersed in the water collection tank B23 under the action of the refrigerant pump A32, and then flows back to the refrigerant pipe 45 at the end of the room through the liquid receiver A31, the tenth pipe 59, and the four-way valve A40, completing the cooling capacity transfer cycle.

[0049] This utility model relates to a three-condenser integrated heat pipe backplane air conditioning system. It allows for switching between multiple operating modes via valve adjustment, maximizing the use of natural cooling sources while supplementing with mechanical refrigeration units. This significantly improves the energy efficiency of data centers and reduces their power usage effectiveness (PUE). The system utilizes a refrigerant pump heat pipe system combined with evaporative cooling technology. This system rapidly transfers heat dissipated by servers to the outside of the heat source, preventing localized overheating, and replaces traditional compressors, fully utilizing natural cooling sources and significantly reducing data center energy consumption. Therefore, it has significant potential for widespread application.

[0050] Example 1 Triple-condenser integrated heat pipe back panel air conditioning system, such as Figures 1-3 As shown, it includes a solar photovoltaic module, an evaporative cooling module, an intermediate heat exchanger module, and a heat pipe backplate air conditioning module connected in sequence.

[0051] Example 2 Triple-condenser integrated heat pipe back panel air conditioning system, such as Figures 1-3 As shown, it includes a solar photovoltaic module, an evaporative cooling module, an intermediate heat exchanger module, and a heat pipe backplate air conditioning module connected in sequence.

[0052] The evaporative cooling module includes a unit housing 49. An air inlet 1 is provided on one side wall of the unit housing 49. Inside the unit housing 49, from near to far from the air inlet 1, a coarse filter 2, a semiconductor cooling chip 30, a vertical tube indirect evaporative cooling section 3, and a packing direct evaporative cooling section 14 are arranged in sequence. An exhaust port A4 and an exhaust port B15 are respectively provided on the top wall of the unit housing 49 above the vertical tube indirect evaporative cooling section 3 and the packing direct evaporative cooling section 14. The semiconductor cooling chip 30, the vertical tube indirect evaporation cooling section 3, and the filler direct evaporation cooling section 14 are all connected to the solar photovoltaic module. Both the vertical tube indirect evaporative cooling section 3 and the packed direct evaporative cooling section 14 are connected to the intermediate heat exchanger module.

[0053] Example 3 Triple-condenser integrated heat pipe back panel air conditioning system, such as Figures 1-3 As shown, it includes a solar photovoltaic module, an evaporative cooling module, an intermediate heat exchanger module, and a heat pipe backplate air conditioning module connected in sequence.

[0054] The evaporative cooling module includes a unit housing 49. An air inlet 1 is provided on one side wall of the unit housing 49. Inside the unit housing 49, from near to far from the air inlet 1, a coarse filter 2, a semiconductor cooling chip 30, a vertical tube indirect evaporative cooling section 3, and a packing direct evaporative cooling section 14 are arranged in sequence. An exhaust port A4 and an exhaust port B15 are respectively provided on the top wall of the unit housing 49 above the vertical tube indirect evaporative cooling section 3 and the packing direct evaporative cooling section 14. The semiconductor cooling chip 30, the vertical tube indirect evaporation cooling section 3, and the filler direct evaporation cooling section 14 are all connected to the solar photovoltaic module. Both the vertical tube indirect evaporative cooling section 3 and the packed direct evaporative cooling section 14 are connected to the intermediate heat exchanger module.

[0055] The vertical indirect evaporative cooling section 3 includes, from top to bottom, an axial flow fan A5, an air-cooled condenser 6, a baffle plate A7, a spray device A8, a vertical heat exchange tube 10, and a water collection tank A13; a circulating water pump A12 is installed in the water collection tank A13, and the circulating water pump A12 is connected to the spray device A8 through a water pipe A9; a float valve A11 is also installed in the water collection tank A13; the axial flow fan A5 is located below the exhaust port A4; The sprinkler device A8 includes a water distribution pipe A, which is equipped with several nozzles. The water distribution pipe A is connected to the water pipe A9. The air-cooled condenser 6 is also connected to the intermediate heat exchanger module.

[0056] Example 4 Triple-condenser integrated heat pipe back panel air conditioning system, such as Figures 1-3 As shown, it includes a solar photovoltaic module, an evaporative cooling module, an intermediate heat exchanger module, and a heat pipe backplate air conditioning module connected in sequence.

[0057] The evaporative cooling module includes a unit housing 49. An air inlet 1 is provided on one side wall of the unit housing 49. Inside the unit housing 49, from near to far from the air inlet 1, a coarse filter 2, a semiconductor cooling chip 30, a vertical tube indirect evaporative cooling section 3, and a packing direct evaporative cooling section 14 are arranged in sequence. An exhaust port A4 and an exhaust port B15 are respectively provided on the top wall of the unit housing 49 above the vertical tube indirect evaporative cooling section 3 and the packing direct evaporative cooling section 14. The semiconductor cooling chip 30, the vertical tube indirect evaporation cooling section 3, and the filler direct evaporation cooling section 14 are all connected to the solar photovoltaic module. Both the vertical tube indirect evaporative cooling section 3 and the packed direct evaporative cooling section 14 are connected to the intermediate heat exchanger module.

[0058] The vertical indirect evaporative cooling section 3 includes, from top to bottom, an axial flow fan A5, an air-cooled condenser 6, a baffle plate A7, a spray device A8, a vertical heat exchange tube 10, and a water collection tank A13; a circulating water pump A12 is installed in the water collection tank A13, and the circulating water pump A12 is connected to the spray device A8 through a water pipe A9; a float valve A11 is also installed in the water collection tank A13; the axial flow fan A5 is located below the exhaust port A4; The sprinkler device A8 includes a water distribution pipe A, which is equipped with several nozzles. The water distribution pipe A is connected to the water pipe A9. The air-cooled condenser 6 is also connected to the intermediate heat exchanger module.

[0059] The direct evaporation cooling section 14 includes, from top to bottom, an axial flow fan B16, a baffle plate B17, a spray device B19, packing 21, and a water collection tank B23; a refrigerant coil 20 is inserted into the packing 21; a water-cooled coil 22, a circulating water pump B24, and a float valve B25 are installed in the water collection tank B23; the circulating water pump B24 is connected to the spray device B19 through a water pipe B18; one end of the water-cooled coil 22 is connected to the refrigerant coil 20, and the other end of the water-cooled coil 22 is connected to the intermediate heat exchanger module; the refrigerant coil 20 is connected to the intermediate heat exchanger module.

[0060] Example 5 Triple-condenser integrated heat pipe back panel air conditioning system, such as Figures 1-3 As shown, it includes a solar photovoltaic module, an evaporative cooling module, an intermediate heat exchanger module, and a heat pipe backplate air conditioning module connected in sequence.

[0061] The evaporative cooling module includes a unit housing 49. An air inlet 1 is provided on one side wall of the unit housing 49. Inside the unit housing 49, from near to far from the air inlet 1, a coarse filter 2, a semiconductor cooling chip 30, a vertical tube indirect evaporative cooling section 3, and a packing direct evaporative cooling section 14 are arranged in sequence. An exhaust port A4 and an exhaust port B15 are respectively provided on the top wall of the unit housing 49 above the vertical tube indirect evaporative cooling section 3 and the packing direct evaporative cooling section 14. The semiconductor cooling chip 30, the vertical tube indirect evaporation cooling section 3, and the filler direct evaporation cooling section 14 are all connected to the solar photovoltaic module. Both the vertical tube indirect evaporative cooling section 3 and the packed direct evaporative cooling section 14 are connected to the intermediate heat exchanger module.

[0062] The vertical indirect evaporative cooling section 3 includes, from top to bottom, an axial flow fan A5, an air-cooled condenser 6, a baffle plate A7, a spray device A8, a vertical heat exchange tube 10, and a water collection tank A13; a circulating water pump A12 is installed in the water collection tank A13, and the circulating water pump A12 is connected to the spray device A8 through a water pipe A9; a float valve A11 is also installed in the water collection tank A13; the axial flow fan A5 is located below the exhaust port A4; The sprinkler device A8 includes a water distribution pipe A, which is equipped with several nozzles. The water distribution pipe A is connected to the water pipe A9. The air-cooled condenser 6 is also connected to the intermediate heat exchanger module.

[0063] The direct evaporation cooling section 14 includes, from top to bottom, an axial flow fan B16, a baffle plate B17, a spray device B19, packing 21, and a water collection tank B23; a refrigerant coil 20 is inserted into the packing 21; a water-cooled coil 22, a circulating water pump B24, and a float valve B25 are installed in the water collection tank B23; the circulating water pump B24 is connected to the spray device B19 through a water pipe B18; one end of the water-cooled coil 22 is connected to the refrigerant coil 20, and the other end of the water-cooled coil 22 is connected to the intermediate heat exchanger module; the refrigerant coil 20 is connected to the intermediate heat exchanger module.

[0064] The sprinkler device B19 includes a water distribution pipe B, which is equipped with several nozzles, and the water distribution pipe B is connected to the water pipe B18.

[0065] Example 6 Triple-condenser integrated heat pipe back panel air conditioning system, such as Figures 1-3 As shown, it includes a solar photovoltaic module, an evaporative cooling module, an intermediate heat exchanger module, and a heat pipe backplate air conditioning module connected in sequence.

[0066] The evaporative cooling module includes a unit housing 49. An air inlet 1 is provided on one side wall of the unit housing 49. Inside the unit housing 49, from near to far from the air inlet 1, a coarse filter 2, a semiconductor cooling chip 30, a vertical tube indirect evaporative cooling section 3, and a packing direct evaporative cooling section 14 are arranged in sequence. An exhaust port A4 and an exhaust port B15 are respectively provided on the top wall of the unit housing 49 above the vertical tube indirect evaporative cooling section 3 and the packing direct evaporative cooling section 14. The semiconductor cooling chip 30, the vertical tube indirect evaporation cooling section 3, and the filler direct evaporation cooling section 14 are all connected to the solar photovoltaic module. Both the vertical tube indirect evaporative cooling section 3 and the packed direct evaporative cooling section 14 are connected to the intermediate heat exchanger module.

[0067] The vertical indirect evaporative cooling section 3 includes, from top to bottom, an axial flow fan A5, an air-cooled condenser 6, a baffle plate A7, a spray device A8, a vertical heat exchange tube 10, and a water collection tank A13; a circulating water pump A12 is installed in the water collection tank A13, and the circulating water pump A12 is connected to the spray device A8 through a water pipe A9; a float valve A11 is also installed in the water collection tank A13; the axial flow fan A5 is located below the exhaust port A4; The sprinkler device A8 includes a water distribution pipe A, which is equipped with several nozzles. The water distribution pipe A is connected to the water pipe A9. The air-cooled condenser 6 is also connected to the intermediate heat exchanger module.

[0068] The direct evaporation cooling section 14 includes, from top to bottom, an axial flow fan B16, a baffle plate B17, a spray device B19, packing 21, and a water collection tank B23; a refrigerant coil 20 is inserted into the packing 21; a water-cooled coil 22, a circulating water pump B24, and a float valve B25 are installed in the water collection tank B23; the circulating water pump B24 is connected to the spray device B19 through a water pipe B18; one end of the water-cooled coil 22 is connected to the refrigerant coil 20, and the other end of the water-cooled coil 22 is connected to the intermediate heat exchanger module; the refrigerant coil 20 is connected to the intermediate heat exchanger module.

[0069] The sprinkler device B19 includes a water distribution pipe B, which is equipped with several nozzles, and the water distribution pipe B is connected to the water pipe B18.

[0070] The intermediate heat exchanger module includes an intermediate heat exchanger 39, a three-way valve A35, a three-way valve B36, a four-way valve A40, and a four-way valve B41; The first port of the three-way valve B36 is connected to the liquid inlet of the air-cooled condenser 6 through the first pipe 50; the second port of the three-way valve B36 is connected to the second port of the four-way valve B41 through the second pipe 51; and the third port of the three-way valve B36 is connected to the first outlet of the intermediate heat exchanger 39 through the third pipe 52. A compressor 38 is also installed on the third pipe 52. The first port of the three-way valve A35 is connected to the liquid outlet of the air-cooled condenser 6 via the fourth pipe 53; the second port of the three-way valve A35 is connected to the second port of the four-way valve A40 via the fifth pipe 54; and the third port of the three-way valve A35 is connected to the first inlet of the intermediate heat exchanger 39 via the sixth pipe 55. A liquid receiver B33 and a refrigerant pump B34 are also installed on the fifth pipe 54; and a throttling valve 37 is also installed on the sixth pipe 55. The first port of the four-way valve B41 is connected to the second inlet of the intermediate heat exchanger 39 via the seventh pipe 56; the second port of the four-way valve B41 is connected to the second port of the three-way valve B36 via the second pipe 51; the third port of the four-way valve B41 is connected to the heat pipe back panel air conditioning module; and the fourth port of the four-way valve B41 is connected to the liquid inlet of the refrigerant coil 20 via the eighth pipe 57. The first port of the four-way valve A40 is connected to the second outlet of the intermediate heat exchanger 39 via the ninth pipe 58. The second port of the four-way valve A40 is connected to the second port of the three-way valve A35 via the fifth pipe 54. The third port of the four-way valve A40 is connected to the heat pipe back panel air conditioning module. The fourth port of the four-way valve A40 is connected to the liquid outlet of the water-cooled coil 22 via the tenth pipe 59. The tenth pipe 59 is also equipped with a liquid receiver A31 and a refrigerant pump A32.

Claims

1. A three-condenser integrated heat pipe back panel air conditioning system, characterized in that, It includes a solar photovoltaic module, an evaporative cooling module, an intermediate heat exchanger module, and a heat pipe backplate air conditioning module connected in sequence.

2. The three-condenser integrated heat pipe backplate air conditioning system according to claim 1, characterized in that, The evaporative cooling module includes a unit housing (49), an air inlet (1) is provided on one side wall of the unit housing (49), and a coarse filter (2), a semiconductor cooling chip (30), a vertical tube indirect evaporative cooling section (3) and a packing direct evaporative cooling section (14) are arranged in sequence from near to far from the air inlet (1) inside the unit housing (49); an exhaust port A (4) and an exhaust port B (15) are respectively provided on the top wall of the unit housing (49) above the vertical tube indirect evaporative cooling section (3) and the packing direct evaporative cooling section (14). The semiconductor cooling chip (30), the vertical tube indirect evaporation cooling section (3), and the filler direct evaporation cooling section (14) are all connected to the solar photovoltaic module; Both the vertical tube indirect evaporative cooling section (3) and the packing direct evaporative cooling section (14) are connected to the intermediate heat exchanger module.

3. The three-condenser integrated heat pipe backplate air conditioning system according to claim 2, characterized in that, The vertical indirect evaporative cooling section (3) includes, from top to bottom, an axial flow fan A (5), an air-cooled condenser (6), a baffle plate A (7), a spray device A (8), a vertical heat exchange tube (10), and a water collection tank A (13); a circulating water pump A (12) is installed in the water collection tank A (13), and the circulating water pump A (12) is connected to the spray device A (8) through a water pipe A (9); a float valve A (11) is also installed in the water collection tank A (13); the axial flow fan A (5) is located below the exhaust port A (4); The air-cooled condenser (6) is also connected to the intermediate heat exchanger module.

4. The three-condenser integrated heat pipe backplate air conditioning system according to claim 3, characterized in that, The direct evaporation cooling section (14) of the packing includes an axial flow fan B (16), a baffle plate B (17), a spray device B (19), packing (21), and a water collection tank B (23) arranged from top to bottom; a refrigerant coil (20) is inserted on the packing (21); a water cooling coil (22), a circulating water pump B (24), and a float valve B (25) are installed in the water collection tank B (23); the circulating water pump B (24) is connected to the spray device B (19) through a water pipe B (18); one end of the water cooling coil (22) is connected to the refrigerant coil (20), and the other end of the water cooling coil (22) is connected to the intermediate heat exchanger module; the refrigerant coil (20) is connected to the intermediate heat exchanger module.

5. The three-condenser integrated heat pipe backplate air conditioning system according to claim 4, characterized in that, The intermediate heat exchanger module includes an intermediate heat exchanger (39), a three-way valve A (35), a three-way valve B (36), a four-way valve A (40), and a four-way valve B (41). The first port of the three-way valve B (36) is connected to the liquid inlet of the air-cooled condenser (6) through the first pipe (50), the second port of the three-way valve B (36) is connected to the second port of the four-way valve B (41) through the second pipe (51), and the third port of the three-way valve B (36) is connected to the first outlet of the intermediate heat exchanger (39) through the third pipe (52); a compressor (38) is also installed on the third pipe (52). The first port of the three-way valve A (35) is connected to the liquid outlet of the air-cooled condenser (6) through the fourth pipe (53), the second port of the three-way valve A (35) is connected to the second port of the four-way valve A (40) through the fifth pipe (54), and the third port of the three-way valve A (35) is connected to the first inlet of the intermediate heat exchanger (39) through the sixth pipe (55); a liquid receiver B (33) and a fluorine pump B (34) are also installed on the fifth pipe (54); a throttle valve (37) is also installed on the sixth pipe (55). The first port of the four-way valve B (41) is connected to the second inlet of the intermediate heat exchanger (39) through the seventh pipe (56); the second port of the four-way valve B (41) is connected to the second port of the three-way valve B (36) through the second pipe (51); the third port of the four-way valve B (41) is connected to the heat pipe back panel air conditioning module; the fourth port of the four-way valve B (41) is connected to the liquid inlet of the refrigerant coil (20) through the eighth pipe (57); The first port of the four-way valve A (40) is connected to the second outlet of the intermediate heat exchanger (39) through the ninth pipe (58), the second port of the four-way valve A (40) is connected to the second port of the three-way valve A (35) through the fifth pipe (54), the third port of the four-way valve A (40) is connected to the heat pipe back panel air conditioning module; the fourth port of the four-way valve A (40) is connected to the liquid outlet of the water cooling coil (22) through the tenth pipe (59); the tenth pipe (59) is also equipped with a liquid storage tank A (31) and a fluorine pump A (32).

6. The three-condenser integrated heat pipe backplate air conditioning system according to claim 5, characterized in that, The heat pipe backplane air conditioning module includes a refrigerant gas pipe (47) and a refrigerant liquid pipe (48) and several loop heat pipe backplane air conditioners installed in the machine room (46). Each loop heat pipe backplane air conditioner is connected to the third port of the four-way valve B (41) through the refrigerant gas pipe (47); each loop heat pipe backplane air conditioner is connected to the third port of the four-way valve A (40) through the refrigerant liquid pipe (48).

7. The three-condenser integrated heat pipe backplate air conditioning system according to claim 6, characterized in that, The loop heat pipe backplate air conditioner includes a heat pipe backplate (43), and a refrigerant pipe (45) is provided inside the heat pipe backplate (43). One side of the heat pipe backplate (43) is attached to the leeward side of the server (42), and several backplate fans (44) are provided on the other side of the heat pipe backplate (43). One end of the refrigerant pipe (45) in each heat pipe backplate (43) is connected to the refrigerant gas pipe (47), and the other end of the refrigerant pipe (45) in each heat pipe backplate (43) is connected to the refrigerant liquid pipe (48).

8. The three-condenser integrated heat pipe backplate air conditioning system according to claim 4, characterized in that, The solar photovoltaic module includes a solar photovoltaic panel (26), a photovoltaic controller (27) and a battery (28) connected in sequence. The photovoltaic controller (27) is also connected to an inverter (29). The solar photovoltaic panel (26) is inclinedly installed on the top of the unit casing. An elbow is provided at the exhaust port A (4), and the exhaust port A (4) is set towards the solar photovoltaic panel (26). The semiconductor cooling chip (30), axial fan A (5), circulating water pump A (12), axial fan B (16) and circulating water pump B (24) are all connected to the inverter (29).

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