Dew point indirect evaporative cooling and split type heat pipe air conditioning system for data center

Abstract

The utility model discloses a dew point indirect evaporative cooling and split type heat pipe air conditioning system for data center, including split type heat pipe evaporative condensation unit and dew point indirect evaporative cooling air conditioning unit, dew point indirect evaporative cooling air conditioning unit includes first unit casing, and the first unit casing one side lateral wall is provided with the air supply pipe, is provided with the return air pipe on the first unit casing bottom plate, and the first unit casing is communicated with data center through air supply pipe and return air pipe, is provided with dew point indirect evaporative cooling heat exchanger and exhaust fan I in dew point indirect evaporative cooling air conditioning unit, and is provided with air supply fan in air supply pipe, is provided with secondary air exhaust port I on the first unit casing, and the secondary air of dew point indirect evaporative cooling heat exchanger exhaust is discharged from secondary air exhaust port I, and exhaust fan I is located at secondary air exhaust port I of dew point indirect evaporative cooling heat exchanger. The system can make full use of natural cold source, improve cooling efficiency, has the characteristics of low energy consumption and large refrigerating capacity.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air conditioning system technical field, specifically related to dew point indirect evaporative cooling and split type heat pipe air conditioning system for data center. BACKGROUND

[0002] With the rapid development of artificial intelligence Internet of Things AR / VR and other compute-intensive applications, AIGC triggers computing power demand, intelligent computing power enters the fast lane, and the increasing computing demand makes data centers gradually develop towards "high performance, high density and high energy consumption". The problem that comes with it is that the single rack power density of the data center increases year by year, and the power consumption of the server increases continuously, especially the CPU / GPU as the key component of the server, with the improvement of performance, its power consumption continues to grow.

[0003] Room-level cooling usually uses precision air conditioners to cool the entire room space. In order to ensure that the most unfavorable position in the room (such as the area farthest from the air conditioner and requiring the most heat dissipation) reaches the appropriate temperature, the room-level air conditioner often needs to provide a large amount of cooling, which leads to an increase in overall energy consumption. Due to the uneven power distribution of the equipment inside the server cabinet, some areas with high-power equipment concentration will generate local hot spots, which require cabinet-level cooling to achieve efficient heat collection and quickly capture the heat generated by the server and absorb and transfer it away at the first time of heat generation. UTILITARIAN CONTENT

[0004] The utility model aims at providing dew point indirect evaporative cooling and split type heat pipe air conditioning system for data center, can make full use of natural cold source, improve cooling efficiency, has the characteristics of low energy consumption and large refrigerating capacity.

[0005] The utility model adopts the technical scheme, dew point indirect evaporative cooling and split type heat pipe air conditioning system for data center, including split type heat pipe evaporative condensing unit and dew point indirect evaporative cooling air conditioning unit;

[0006] The dew point indirect evaporative cooling air conditioning unit includes a first unit shell, a supply air pipe is arranged on the side wall of the first unit shell, a return air pipe is arranged on the bottom plate of the first unit shell, and the first unit shell is communicated with the data center through the supply air pipe and the return air pipe;

[0007] The dew point indirect evaporative cooling air conditioning unit is provided with a dew point indirect evaporative cooling heat exchanger and an exhaust fan I, and a supply air fan is arranged in the supply air pipe;A secondary air exhaust port I is arranged on the first unit shell, and the secondary air exhausted from the dew point indirect evaporative cooling heat exchanger is exhausted from the secondary air exhaust port I;The exhaust fan I is located at the secondary air exhaust port I of the dew point indirect evaporative cooling heat exchanger.

[0008] The utility model discloses a feature still lies in:

[0009] The split heat pipe evaporates and condenses the unit, including evaporative condenser and split heat pipe evaporating side, split heat pipe evaporating side sets up in data center and is close to server rack setting;

[0010] Evaporative condenser and split heat pipe evaporating side communicate through liquid guide pipe and gas guide pipe.

[0011] Evaporative condenser includes second unit shell, and the second unit shell is sequentially provided with exhaust fan, water distribution device, split heat pipe condensing side and water tank from top to bottom;Water distribution device communicates with water tank through water supply pipe;

[0012] Split heat pipe condensing side communicates with split heat pipe evaporating side through liquid guide pipe and gas guide pipe and forms closed loop;

[0013] The second unit shell top wall corresponding to exhaust fan is provided with exhaust port, and the second unit shell two opposite side walls corresponding to split heat pipe condensing side and water tank are both provided with air inlet.

[0014] Water pump is arranged on water supply pipe;Water pump is located in water tank.

[0015] Valve is arranged on water supply pipe.

[0016] Water distribution device includes water distribution pipe, and a plurality of nozzles are arranged on water distribution pipe, and water distribution pipe communicates with water supply pipe.

[0017] Refrigerant pump is arranged on liquid guide pipe.

[0018] Exhaust fan II is axial flow fan.

[0019] The utility model discloses the beneficial effects are:

[0020] 1. The utility model discloses air conditioning system, and the cooler adopts dew point indirect evaporative cooler, and the shape of heat exchange plate in this cooler is hexagon, and the air outlet temperature can approach the dew point temperature of air, enhances the heat exchange effect, and improves cooling efficiency.

[0021] 2. The utility model discloses air conditioning system, and the condenser uses evaporative condenser, and the heat exchange efficiency is increased, and the system energy efficiency is improved.

[0022] 3. The utility model discloses air conditioning system, and adopts split heat pipe, and there is no compressor in the whole system, and energy consumption is greatly reduced.

[0023] 4. The utility model discloses air conditioning system, and there is no water into machine room in the whole system, effectively prevents the occurrence of accident, and greatly improves the security of system operation.

[0024] 5. The air conditioning system has the characteristics of low energy consumption, large refrigerating capacity and flexible arrangement. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the data center dew point indirect evaporative cooling and split type heat pipe air conditioning system structure of the utility model;

[0026] Figure 2 is a working schematic diagram of the dew point indirect evaporative cooling heat exchanger of the data center dew point indirect evaporative cooling and split type heat pipe air conditioning system of the utility model.

[0027] In the drawing, 1. dew point indirect evaporative cooling air conditioning unit, 2. first unit shell, 3. air supply pipe, 4. air supply fan, 5. return air pipe, 6. exhaust fan I, 7. air outlet I, 8. data center, 9. server cabinet, 10. split type heat pipe evaporation side, 11. refrigerant pump, 12. evaporative condenser, 13. second unit shell, 14. split type heat pipe condensing side, 15. water tank, 16. water pump, 17. valve, 18. water supply pipe, 19. nozzle, 20. exhaust fan II, 21. air outlet II, 22 air inlet, 23. liquid guide pipe, 24. gas guide pipe, 25. dew point indirect evaporative cooling heat exchanger, 26. primary air outlet, 27. primary air inlet, 28. secondary air exhaust, 29. pipe hole, 30. medium cooling air, 31. water distribution pipe. DETAILED DESCRIPTION

[0028] The utility model will be explained in detail below in combination with the drawings and specific embodiments.

[0029] The utility model provides data center dew point indirect evaporative cooling and split type heat pipe air conditioning system, as Figure 1 The utility model discloses a data center dew point indirect evaporative cooling and split type heat pipe air conditioning system structure schematic diagram, which comprises a split type heat pipe evaporation condensation unit and a dew point indirect evaporative cooling air conditioning unit 1.

[0030] The dew point indirect evaporative cooling air conditioning unit 1 comprises a first unit shell 2, an air supply pipe 3 is arranged on one side wall of the first unit shell 2, a return air pipe 5 is arranged on the bottom plate of the first unit shell 2, and the first unit shell 2 is communicated with the data center 8 through the air supply pipe 3 and the return air pipe 5.

[0031] The dew point indirect evaporative cooling air conditioning unit 1 is provided with a dew point indirect evaporative cooling heat exchanger 25 and an exhaust fan I 6, and an air supply fan 4 is arranged in the air supply pipe 3; a secondary air exhaust port I 7 is arranged on the first unit shell 2, and the secondary air exhausted from the dew point indirect evaporative cooling heat exchanger 25 is exhausted from the secondary air exhaust port I 7; the exhaust fan I 6 is located at the secondary air exhaust port I 7 of the dew point indirect evaporative cooling heat exchanger 25.

[0032] The split heat pipe evaporating and condensing unit comprises an evaporative condenser 12 (located outdoors) and a split heat pipe evaporating side 10, which is arranged in the data center 8 and is arranged close to the server cabinet 9 for cooling; this arrangement can effectively control the heat generated by the equipment in the cabinet and avoid the accumulation of heat in the room. The air volume of the exhaust fan II 20 in the evaporative condenser 12 can be adjusted according to the load size of the server cabinet 9, effectively relieving the local hot spot problem.

[0033] The evaporative condenser 12 and the split heat pipe evaporating side 10 are communicated through the liquid guide pipe 23 and the air guide pipe 24.

[0034] The evaporative condenser 12 comprises a second unit shell 13, in which an exhaust fan II 20, a water distribution device, a split heat pipe condensing side 14 and a water tank 15 are arranged from top to bottom; the water distribution device is communicated with the water tank 15 through a water supply pipe 18;

[0035] The split heat pipe condensing side 14 is communicated with the split heat pipe evaporating side 10 through the liquid guide pipe 23 and the air guide pipe 24 to form a closed loop;

[0036] The exhaust fan II 20 is provided with an exhaust port II 21 on the top wall of the second unit shell 13 corresponding to the upper portion of the exhaust fan II 20, and the two opposite side walls of the second unit shell 13 corresponding to the split heat pipe condensing side 14 and the water tank 15 are both provided with air inlets 22.

[0037] The water supply pipe 18 is provided with a water pump 16; the water pump 16 is located in the water tank 15.

[0038] The water supply pipe 18 is provided with a valve 17.

[0039] The water distribution device comprises a water distribution pipe 31, which is provided with a plurality of nozzles 19 and is communicated with the water supply pipe 18.

[0040] The liquid guide pipe 23 is provided with a refrigerant pump 11.

[0041] The exhaust fan II 20 is an axial flow fan.

[0042] The dew point indirect evaporative cooling air conditioning unit 1 sends air to the data center 8 through the air supply fan 4 through the air supply pipe 3, and sends the return air of the data center 8 back to the dew point indirect evaporative cooling air conditioning unit 1 through the return air pipe 5; at the same time, a split heat pipe is arranged, the split heat pipe evaporating side 10 is arranged near the server cabinet 9 in the data center 8 for cooling, and the condensing side 14 is arranged outdoors and condensed through the evaporative condenser 12.

[0043] As Figure 2As shown, the heat exchanger in the dew-point indirect evaporative cooling air conditioning unit 1 adopts a dew-point indirect evaporative cooler, the shape of the heat exchange plate in the cooler is hexagonal, the air outlet temperature can approach the dew point temperature of the air, the cooler is composed of adjacent dry and wet channels arranged alternately, the end of the wet channel is punched with a plurality of pipe holes 29, the primary air entering the dry channel is pre-cooled, part of the primary air enters the wet channel when flowing through the pipe holes 29, and the part of the primary air, as secondary air, exchanges heat and moisture with the water film in the wet channel, so that the temperature of the wet channel is reduced, the heat exchange temperature difference between the dry and wet channels is increased, and the temperature reduction range of the primary air in the dry channel is increased; in the first unit shell 2, the primary air inlet 27 (i.e. the suction of the air to be treated and the medium air) is below the cooler, the air flows in the horizontal direction after entering the dry channel, and the air is subjected to isohumid cooling in the process, when the air is about to reach the outlet position of the dry channel, the medium cooling air 30 (i.e. part of the air) as the secondary air enters the adjacent wet channel from the pipe holes 29 on the heat exchange plate, the flow direction of the secondary air is changed by 180 degrees, and the other part of the air as the primary air outlet 26 (i.e. the generated cold air) flows out from the dry channel outlet and is sent into the room as the supply air for cooling and temperature reduction. The secondary air exhaust 28 (i.e. the medium air exhaust) is discharged into the atmosphere from the exhaust port II 21 above the cooler after exchanging heat and mass with the water and the primary air.

[0044] The heat pipe is one of important technical forms for realizing high-efficiency natural cooling of the data center, and through small temperature difference, the heat pipe system drives the gas-liquid circulation working medium inside the heat pipe to form a self-adaptive dynamic phase change cycle, so that the heat of the IT equipment in the computer room is taken to the outdoor. The evaporation section is located near the server cabinet, and high-efficiency heat collection and accurate temperature control can be realized. Compared with the traditional indirect evaporative cooling technology, the dew-point indirect evaporative cooling utilizes a larger temperature difference between the wet air and the primary air for heat exchange, can cool the air to a lower temperature, has large refrigerating capacity and lower energy consumption. Therefore, the air conditioning system combining the dew-point indirect evaporative cooling and the heat pipe can fully utilize the natural cold source and improve the cooling efficiency.

[0045] The working principle of the dew-point indirect evaporative cooling and split heat pipe air conditioning system for the data center is as follows:

[0046] The air conditioning system adopts two refrigeration modes of the dew-point indirect evaporative cooling air conditioning unit air system and the split heat pipe system to work:

[0047] 1. The working process of the dew-point indirect evaporative cooling air conditioning unit air system is as follows: the dew-point indirect evaporative cooling air conditioning unit 1 sends air to the data center 8 through the air supply pipe 3 to take away the heat of the server cabinet 9, and sends the return air of the data center 8 back to the dew-point indirect evaporative cooling air conditioning unit 1 through the return air pipe 5.

[0048] 2. The working process of the split heat pipe system is as follows: liquid refrigerant is driven by the refrigerant pump 11 to the split heat pipe evaporation side 10 to evaporate and absorb heat, and the gaseous refrigerant after evaporation enters the split heat pipe condensing side 14 to condense and then returns to the split heat pipe evaporation side 10 through the action of the refrigerant pump 11. The water in the water tank 15 is pumped to the nozzle 19 above the split heat pipe condensing side 14 by the water pump 16 in the evaporative condenser 12, and then sprayed onto the split heat pipe condensing side 14 through the nozzle 19 to realize condensation. The heat is taken away by the exhaust fan II 20 located above the evaporative condenser 12 through the heat and mass exchange between water and air.

[0049] The air conditioning system of the utility model takes away most of the heat of the data center through the split heat pipe evaporation side, and the cold air sent by the dew point indirect evaporative cooling air conditioning unit is used to take away the remaining small part of the heat that cannot be taken away by the split heat pipe evaporation side. The evaporative condenser is used to take away the heat of the split heat pipe condensing side. The whole system does not consume energy, and no water enters the machine room, which greatly ensures the safety of the data center, reduces the energy consumption of the data center, is more energy-saving, and realizes the de-compression.

[0050] Example 1

[0051] The data center dew point indirect evaporative cooling and split heat pipe air conditioning system, as shown in Figure 1 , comprises a split heat pipe evaporation condensing unit and a dew point indirect evaporative cooling air conditioning unit 1.

[0052] The dew point indirect evaporative cooling air conditioning unit 1 comprises a first unit shell 2, a supply air pipe 3 is arranged on one side wall of the first unit shell 2, a return air pipe 5 is arranged on the bottom plate of the first unit shell 2, and the first unit shell 2 is in communication with the data center 8 through the supply air pipe 3 and the return air pipe 5.

[0053] The dew point indirect evaporative cooling air conditioning unit 1 is provided with a dew point indirect evaporative cooling heat exchanger 25 and an exhaust fan I 6, and a supply air fan 4 is arranged in the supply air pipe 3. A secondary air exhaust port I 7 is arranged on the first unit shell 2, and the secondary air exhausted from the dew point indirect evaporative cooling heat exchanger 25 is exhausted from the secondary air exhaust port I 7. The exhaust fan I 6 is located at the secondary air exhaust port I 7 of the dew point indirect evaporative cooling heat exchanger 25.

[0054] The split heat pipe evaporation condensing unit comprises an evaporative condenser 12 (located outdoors) and a split heat pipe evaporation side 10. The split heat pipe evaporation side 10 is arranged in the data center 8 and is arranged close to the server cabinet 9 for cooling. This arrangement can effectively control the heat generated by the equipment in the cabinet and avoid the accumulation of heat in the room.

[0055] Example 2

[0056] A data center dew point indirect evaporative cooling and split heat pipe air conditioning system, as shown in Figure 1 includes a split heat pipe evaporative condenser unit and a dew point indirect evaporative cooling air conditioning unit 1.

[0057] The dew point indirect evaporative cooling air conditioning unit 1 includes a first unit shell 2, a supply air pipe 3 is arranged on one side wall of the first unit shell 2, a return air pipe 5 is arranged on the bottom plate of the first unit shell 2, and the first unit shell 2 is in communication with the data center 8 through the supply air pipe 3 and the return air pipe 5.

[0058] The dew point indirect evaporative cooling air conditioning unit 1 is provided with a dew point indirect evaporative cooling heat exchanger 25 and an exhaust fan I 6, and a supply air fan 4 is arranged in the supply air pipe 3; the first unit shell 2 is provided with a secondary air exhaust port I 7, and the secondary air discharged from the dew point indirect evaporative cooling heat exchanger 25 is discharged from the secondary air exhaust port I 7; the exhaust fan I 6 is located at the secondary air exhaust port I 7 of the dew point indirect evaporative cooling heat exchanger 25.

[0059] The split heat pipe evaporative condenser unit includes an evaporative condenser 12 (located outdoors) and a split heat pipe evaporation side 10, the split heat pipe evaporation side 10 is arranged in the data center 8, and the split heat pipe evaporation side 10 is arranged close to the server cabinet 9 for cooling; this arrangement can effectively control the heat generated by the equipment in the cabinet and avoid the accumulation of heat in the room.

[0060] The evaporative condenser 12 and the split heat pipe evaporation side 10 are in communication through a liquid guide pipe 23 and an air guide pipe 24.

[0061] Example 3

[0062] A data center dew point indirect evaporative cooling and split heat pipe air conditioning system, as shown in Figure 1 includes a split heat pipe evaporative condenser unit and a dew point indirect evaporative cooling air conditioning unit 1.

[0063] The dew point indirect evaporative cooling air conditioning unit 1 includes a first unit shell 2, a supply air pipe 3 is arranged on one side wall of the first unit shell 2, a return air pipe 5 is arranged on the bottom plate of the first unit shell 2, and the first unit shell 2 is in communication with the data center 8 through the supply air pipe 3 and the return air pipe 5.

[0064] The dew point indirect evaporative cooling air conditioning unit 1 is provided with a dew point indirect evaporative cooling heat exchanger 25 and an exhaust fan I 6, and a supply air fan 4 is arranged in the supply air pipe 3; the first unit shell 2 is provided with a secondary air exhaust port I 7, and the secondary air discharged from the dew point indirect evaporative cooling heat exchanger 25 is discharged from the secondary air exhaust port I 7; the exhaust fan I 6 is located at the secondary air exhaust port I 7 of the dew point indirect evaporative cooling heat exchanger 25.

[0065] The split heat pipe evaporating and condensing unit comprises an evaporative condenser 12 (located outdoors) and a split heat pipe evaporating side 10, which is arranged in the data center 8 and is arranged close to the server cabinet 9 for cooling; this arrangement can effectively control the heat generated by the equipment in the cabinet and avoid the accumulation of heat in the room.

[0066] The evaporative condenser 12 and the split heat pipe evaporating side 10 are communicated through a liquid guide pipe 23 and an air guide pipe 24.

[0067] The evaporative condenser 12 comprises a second unit shell 13, in which an exhaust fan II 20, a water distribution device, a split heat pipe condensing side 14, and a water tank 15 are arranged from top to bottom; the water distribution device is communicated with the water tank 15 through a water supply pipe 18;

[0068] The split heat pipe condensing side 14 is communicated with the split heat pipe evaporating side 10 through the liquid guide pipe 23 and the air guide pipe 24 to form a closed loop;

[0069] An exhaust port II 21 is arranged on the top wall of the second unit shell 13 corresponding to the exhaust fan II 20, and air inlets 22 are arranged on the two opposite side walls of the second unit shell 13 corresponding to the split heat pipe condensing side 14 and the water tank 15.

[0070] Embodiment 4

[0071] The data center dew point indirect evaporative cooling and split heat pipe air conditioning system, as shown in the figure, comprises a split heat pipe evaporating and condensing unit and a dew point indirect evaporative cooling air conditioning unit 1. Figure 1

[0072] The dew point indirect evaporative cooling air conditioning unit 1 comprises a first unit shell 2, one side wall of which is provided with a supply air pipe 3, and a return air pipe 5 is arranged on the bottom plate of the first unit shell 2; the first unit shell 2 is communicated with the data center 8 through the supply air pipe 3 and the return air pipe 5.

[0073] The dew point indirect evaporative cooling air conditioning unit 1 is provided with a dew point indirect evaporative cooling heat exchanger 25 and an exhaust fan I 6, and a supply air fan 4 is arranged in the supply air pipe 3; a secondary air exhaust port I 7 is arranged on the first unit shell 2, and the secondary air exhausted from the dew point indirect evaporative cooling heat exchanger 25 is exhausted from the secondary air exhaust port I 7; the exhaust fan I 6 is located at the secondary air exhaust port I 7 of the dew point indirect evaporative cooling heat exchanger 25.

[0074] ​The split heat pipe evaporating and condensing unit comprises an evaporative condenser 12 (located outdoors) and a split heat pipe evaporating side 10, which is arranged in the data center 8 and is arranged close to the server cabinet 9 for cooling; this arrangement can effectively control the heat generated by the equipment in the cabinet and avoid the accumulation of heat in the room.

[0075] The evaporative condenser 12 and the split heat pipe evaporating side 10 are communicated through a liquid guide pipe 23 and an air guide pipe 24.

[0076] The evaporative condenser 12 comprises a second unit shell 13, in which an exhaust fan II 20, a water distribution device, a split heat pipe condensing side 14, and a water tank 15 are sequentially arranged from top to bottom; the water distribution device is communicated with the water tank 15 through a water supply pipe 18;

[0077] The split heat pipe condensing side 14 is communicated with the split heat pipe evaporating side 10 through the liquid guide pipe 23 and the air guide pipe 24 to form a closed loop;

[0078] An exhaust port II 21 is arranged on the top wall of the second unit shell 13 corresponding to the exhaust fan II 20, and an air inlet 22 is arranged on each of the two opposite side walls of the second unit shell 13 corresponding to the split heat pipe condensing side 14 and the water tank 15.

[0079] A water pump 16 is arranged on the water supply pipe 18; the water pump 16 is located in the water tank 15.

[0080] Embodiment 5

[0081] The data center uses a dew point indirect evaporative cooling and split heat pipe air conditioning system, as shown in the figure, which comprises a split heat pipe evaporating and condensing unit and a dew point indirect evaporative cooling air conditioning unit 1. Figure 1

[0082] The dew point indirect evaporative cooling air conditioning unit 1 comprises a first unit shell 2, one side wall of which is provided with a supply air pipe 3, and a bottom plate of which is provided with a return air pipe 5; the first unit shell 2 is communicated with the data center 8 through the supply air pipe 3 and the return air pipe 5.

[0083] The dew point indirect evaporative cooling air conditioning unit 1 is provided with a dew point indirect evaporative cooling heat exchanger 25 and an exhaust fan I 6, and the supply air pipe 3 is provided with a supply air fan 4; the first unit shell 2 is provided with a secondary air exhaust port I 7, through which the secondary air discharged from the dew point indirect evaporative cooling heat exchanger 25 is exhausted; the exhaust fan I 6 is located at the secondary air exhaust port I 7 of the dew point indirect evaporative cooling heat exchanger 25.

[0084] ​The split heat pipe evaporation and condensation unit includes an evaporative condenser 12 (located outdoors) and a split heat pipe evaporation side 10. The split heat pipe evaporation side 10 is located inside the data center 8 and is positioned close to the server rack 9 for cooling. This arrangement can effectively control the heat generated by the equipment inside the rack and prevent heat from accumulating in the room.

[0085] The evaporative condenser 12 is connected to the split heat pipe evaporator side 10 through the liquid guide pipe 23 and the gas guide pipe 24.

[0086] The evaporative condenser 12 includes a second unit housing 13, and inside the second unit housing 13, from top to bottom, are arranged an exhaust fan II 20, a water distribution device, a split heat pipe condenser side 14, and a water tank 15; the water distribution device is connected to the water tank 15 through a water supply pipe 18.

[0087] The condenser side 14 of the split heat pipe is connected to the evaporator side 10 of the split heat pipe through the liquid guide pipe 23 and the gas guide pipe 24 to form a closed loop.

[0088] An exhaust port II21 is provided on the top wall of the second unit housing 13 above the exhaust fan II20, and an air inlet 22 is provided on the two opposite side walls of the second unit housing 13 between the split heat pipe condenser side 14 and the water tank 15.

[0089] A water pump 16 is installed on the water supply pipe 18; the water pump 16 is located inside the water tank 15.

[0090] A valve 17 is installed on the water supply pipe 18.

[0091] Example 6

[0092] Data centers use dew point indirect evaporative cooling and split-type heat pipe air conditioning systems, such as Figure 1 As shown, it includes a split-type heat pipe evaporation and condensation unit and a dew point indirect evaporation cooling air conditioning unit 1;

[0093] The dew point indirect evaporative cooling air conditioning unit 1 includes a first unit shell 2, an air supply duct 3 is provided on one side wall of the first unit shell 2, and a return air duct 5 is provided on the bottom plate of the first unit shell 2. The first unit shell 2 is connected to the data center 8 through the air supply duct 3 and the return air duct 5.

[0094] The dew point indirect evaporative cooling air conditioning unit 1 is equipped with a dew point indirect evaporative cooling heat exchanger 25 and an exhaust fan I6. An air supply fan 4 is installed in the air supply duct 3. A secondary air exhaust port I7 is installed on the casing 2 of the first unit. The secondary air discharged from the dew point indirect evaporative cooling heat exchanger 25 is discharged from the secondary air exhaust port I7. The exhaust fan I6 is located at the secondary air exhaust port I7 of the dew point indirect evaporative cooling heat exchanger 25.

[0095] The split heat pipe evaporating and condensing unit comprises an evaporative condenser 12 (located outdoors) and a split heat pipe evaporating side 10, which is arranged in the data center 8 and is arranged close to the server cabinet 9 for cooling; this arrangement can effectively control the heat generated by the equipment in the cabinet and avoid the accumulation of heat in the room.

[0096] The evaporative condenser 12 and the split heat pipe evaporating side 10 are communicated through a liquid guide pipe 23 and an air guide pipe 24.

[0097] The evaporative condenser 12 comprises a second unit shell 13, in which an exhaust fan II 20, a water distribution device, a split heat pipe condensing side 14 and a water tank 15 are sequentially arranged from top to bottom; the water distribution device is communicated with the water tank 15 through a water supply pipe 18;

[0098] The split heat pipe condensing side 14 is communicated with the split heat pipe evaporating side 10 through the liquid guide pipe 23 and the air guide pipe 24 to form a closed loop;

[0099] An exhaust port II 21 is arranged on the top wall of the second unit shell 13 corresponding to the exhaust fan II 20, and air inlets 22 are arranged on the two opposite side walls of the second unit shell 13 corresponding to the split heat pipe condensing side 14 and the water tank 15.

[0100] A water pump 16 is arranged on the water supply pipe 18; the water pump 16 is located in the water tank 15.

[0101] A valve 17 is arranged on the water supply pipe 18.

[0102] The water distribution device comprises a water distribution pipe 31, a plurality of nozzles 19 are arranged on the water distribution pipe 31, and the water distribution pipe 31 is communicated with the water supply pipe 18.

Claims

1. A dew point indirect evaporative cooling and split type heat pipe air conditioning system for data center, characterized in that, The application relates to a dew-point indirect evaporative cooling air conditioning unit (1) comprising a split heat pipe evaporation-condensation unit. The dew-point indirect evaporative cooling air conditioning unit (1) comprises a first unit shell (2), a supply air pipe (3) is arranged on one side wall of the first unit shell (2), a return air pipe (5) is arranged on the bottom plate of the first unit shell (2), and the first unit shell (2) is communicated with a data center (8) through the supply air pipe (3) and the return air pipe (5). The dew-point indirect evaporative cooling air conditioning unit (1) is provided with a dew-point indirect evaporative cooling heat exchanger (25) and an exhaust fan I (6), and a supply air fan (4) is arranged in the supply air pipe (3); a secondary air exhaust opening I (7) is arranged on the first unit shell (2), and the secondary air exhausted from the dew-point indirect evaporative cooling heat exchanger (25) is exhausted from the secondary air exhaust opening I (7); the exhaust fan I (6) is located at the secondary air exhaust opening I (7) of the dew-point indirect evaporative cooling heat exchanger (25).

2. The data center dew point indirect evaporative cooling and split type heat pipe air conditioning system of claim 1, wherein, The split heat pipe evaporation-condensation unit comprises an evaporative condenser (12) and a split heat pipe evaporation side (10), and the split heat pipe evaporation side (10) is arranged in the data center (8); the evaporative condenser (12) and the split heat pipe evaporation side (10) are communicated through a liquid guide pipe (23) and an air guide pipe (24).

3. The data center dew point indirect evaporative cooling and split type heat pipe air conditioning system of claim 2, wherein, The evaporative condenser (12) comprises a second unit shell (13), and an exhaust fan II (20), a water distribution device, a split heat pipe condensation side (14) and a water tank (15) are sequentially arranged in the second unit shell (13) from top to bottom; the water distribution device is communicated with the water tank (15) through a water supply pipe (18). The split heat pipe condensation side (14) is communicated with the split heat pipe evaporation side (10) through the liquid guide pipe (23) and the air guide pipe (24) to form a closed loop. Corresponding exhaust openings II (21) are arranged on the top walls of the second unit shells (13) at the top, and air inlets (22) are arranged on two opposite side walls of the second unit shell (13) between the split heat pipe condensation side (14) and the water tank (15).

4. The data center dew point indirect evaporative cooling and split type heat pipe air conditioning system of claim 3, wherein, A water pump (16) is arranged on the water supply pipe (18).

5. The data center dew point indirect evaporative cooling and split type heat pipe air conditioning system of claim 4, wherein, A valve (17) is arranged on the water supply pipe (18).

6. The data center dew point indirect evaporative cooling and split type heat pipe air conditioning system of claim 4, wherein, The water distribution device comprises a water distribution pipe (31) provided with a plurality of nozzles (19), and the water distribution pipe (31) is communicated with the water supply pipe (18).

7. The data center dew point indirect evaporative cooling and split type heat pipe air conditioning system of claim 4, wherein, A refrigerant pump (11) is arranged on the liquid guide pipe (23).

8. The data center dew point indirect evaporative cooling and split type heat pipe air conditioning system of claim 4, wherein, The exhaust fan II (20) is an axial flow fan.

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