CN208108372U - In conjunction with data center's evaporation cooling channel air-conditioning system of solar chimney technology - Google Patents

Abstract

The evaporative cooling ventilation and air-conditioning system for data center combined with solar chimney technology disclosed by the utility model includes an evaporative cooling unit arranged outside the data center computer room, and the evaporative cooling unit is respectively connected to the data center computer room through a cold air delivery channel and a return air pipe; There is also an exhaust system on the top of the central computer room. The utility model evaporative cooling ventilation and air-conditioning system takes into account that evaporative cooling has the characteristics of large air volume, small enthalpy difference, cooling and humidification, and adopts the method of discharging hot air through the internal cold channel of the data center, which can not only completely isolate the cold and hot air It can also avoid the accumulation of humidity in the computer room; in addition, a solar chimney is installed, and the hot air of the hot aisle can be directly discharged outside through the solar chimney, eliminating the need for an exhaust fan, and optimizing the indoor airflow organization; the combination of the two makes full use of solar energy, and the outdoor Renewable energy sources, such as ambient dry air energy, can minimize the energy consumption of data center cooling systems.

Description

Data Center Evaporative Cooling Ventilation and Air Conditioning System Combined with Solar Chimney Technology

technical field

The utility model belongs to the technical field of air-conditioning equipment, in particular to an evaporative cooling ventilation air-conditioning system for a data center combined with solar chimney technology.

Background technique

In the Internet era, we have witnessed the prosperity of modern data center construction. At the same time, the power of IT equipment in servers is also increasing day by day, and the heat density is increasing rapidly. How to ensure the normal operation of data processing equipment without consuming large cooling energy consumption has become an issue of increasing concern for data center cooling systems.

Traditional data center air conditioners are prone to severe mixing of cold and heat due to their low supply air temperature, and their airflow organization is also very chaotic, resulting in poor cooling effect and high energy consumption.

Utility model content

The purpose of the utility model is to provide a data center evaporative cooling ventilation air-conditioning system combined with solar chimney technology, which solves the problems of poor cooling effect and high energy consumption of the existing data center air-conditioning system.

The technical scheme adopted by the utility model is that the data center evaporative cooling ventilation and air-conditioning system combined with solar chimney technology includes an evaporative cooling unit arranged outside the data center computer room, and the evaporative cooling unit passes through the cold air delivery channel, the return air pipe and the data center respectively. The central computer room is connected, and the top of the data center computer room is also equipped with an exhaust system;

The evaporative cooling unit includes a shell, and the corresponding sides of the shell are respectively provided with a primary air inlet and an air supply port. The primary air inlet is provided with a filter, an air partition, an indirect evaporative cooling section, and a return air section in sequence according to the air flow direction. , direct evaporative cooling section, water baffle and air supply fan;

The cold air delivery channel is located at the bottom of the floor of the data center computer room, and several air outlet holes are evenly distributed on the cold air delivery channel and pass through the floor, and are connected to the cold channel in the data center computer room;

A return air outlet regulating valve is also arranged in the return air duct.

The utility model is also characterized in that,

An air supply port regulating valve is arranged in the air supply port, and the air supply port is connected with a cold air conveying channel.

The indirect evaporative cooling section includes a plate-tube indirect evaporative cooler, the top of the tube indirect evaporative cooler is provided with a water distributor a, and the bottom of the tube indirect evaporative cooler is provided with a circulating water tank a, and the water distributor a is connected to the circulating water tank a through a circulating water pipe a , the circulating water pipe a is provided with a circulating water pump a;

The shell corresponding to the top of the tube indirect evaporative cooler is also provided with a secondary air exhaust port, and a secondary air exhaust fan is arranged in the secondary air exhaust port;

The shell corresponding to the bottom of the tube indirect evaporative cooler is also provided with a secondary air inlet.

The air return section includes a unit return air outlet located on the top of the corresponding housing, and a return air fan is arranged in the unit return air outlet, and the unit return air outlet is also connected to the data center computer room through a return air duct.

The direct evaporative cooling section includes direct evaporative cooling packing, the top of the direct evaporative cooling packing is provided with a water distributor b, the bottom of the direct evaporative cooling packing is provided with a circulating water tank b, the water distributor b is connected to the circulating water tank b through a circulating water pipe b, and the circulating water pipe b A circulating water pump b is arranged on it.

The cold aisle consists of two opposite server cabinets, and the air outlet side of the server cabinets forms a hot aisle with the data center room.

The exhaust system includes no less than two solar chimneys, each solar chimney is provided with a solar chimney air outlet at the top, and the bottom of each solar chimney is connected with the heat channel of the data center computer room.

A top cap is also arranged on the air outlet of the solar chimney.

The beneficial effects of the utility model evaporative cooling ventilation air-conditioning system are:

(1) The evaporative cooling ventilation and air-conditioning system of the utility model uses the cold air with large air volume and small enthalpy difference processed by the evaporative cooling unit to be sent into the cold aisle between the server cabinets, and the hot air in the hot aisle is discharged through the solar chimney, avoiding cold and heat The phenomenon of air mixing;

(2) The evaporative cooling, ventilation and air-conditioning system of the utility model can quickly discharge the heat dissipated by the server cabinet through the direct current exhaust instead of absorbing it, which not only greatly reduces the energy consumption, but also avoids the constant increase of the internal humidity of the data center computer room The phenomenon;

(3) The evaporative cooling, ventilation and air-conditioning system of the utility model uses a solar chimney exhaust system, fully utilizes the thermal pressure caused by solar radiation, not only saves the exhaust fan, but also strengthens the exhaust effect;

(4) The evaporative cooling, ventilation and air-conditioning system of the utility model can turn on the ventilation mode or the air-conditioning mode according to the outdoor environment state. When the fresh air meets the air supply conditions, only the solar chimney can be used to discharge the heat from the cabinet to the outside. Fresh air mixed into the room;

(5) The utility model evaporative cooling ventilation air-conditioning system is provided with a top cap at the air outlet of the solar chimney, and the air volume of the return air and the exhaust air can be changed by adjusting the top cap of the air outlet of the solar chimney;

(6) The evaporative cooling, ventilation and air-conditioning system of the utility model saves equipment such as cooling towers, refrigeration hosts and plate heat exchangers, and correspondingly saves complicated pipe network systems, and the operation and maintenance of the entire air-conditioning system is simple.

Description of drawings

Fig. 1 is the structural representation of the utility model evaporative cooling ventilation and air-conditioning system;

Fig. 2 is a structural schematic diagram of the evaporative cooling unit in the evaporative cooling ventilation and air-conditioning system of the present invention.

In the figure, 1. Server cabinet, 2. Air outlet, 3. Cold air delivery channel, 4. Shell, 5. Return air pipe, 6. Return air outlet regulating valve, 7. Solar chimney, 8. Top hat, 9. Solar chimney exhaust, 10. Hot aisle, 11. Cold aisle, 12. Plate tube indirect evaporative cooler, 13. Primary air inlet, 14. Secondary air inlet, 15. Filter, 16. Air barrier , 17. Circulating water tank a, 18. Circulating water pump a, 19. Circulating water pipe a, 20. Circulating water pump b, 21. Circulating water tank b, 22. Direct evaporative cooling filler, 23. Air outlet, 24. Air outlet regulating valve, 25. Air supply fan, 26. Water baffle, 27. Nozzle b, 28. Water distributor b, 29. Circulating water pipe b, 30. Unit return air outlet, 31. Return air fan, 32. Secondary air exhaust outlet , 33. Secondary air exhaust fan, 34. Water distributor a, 35. Nozzle a.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The evaporative cooling ventilation and air-conditioning system for data center of the utility model combined with solar chimney technology, as shown in Fig. The data center computer room is connected; the top of the data center computer room is also equipped with an exhaust system. The evaporative cooling unit is connected to the data center computer room through the cold air delivery channel 3; the evaporative cooling unit introduces part of the return air through the return air duct 5 and mixes it with the fresh air, and the air that meets the air supply conditions is sent into the data center computer room; the exhaust system is connected to the atmosphere.

The return air duct 5 is also provided with a return air outlet regulating valve 6 to adjust the return air volume.

As shown in Figure 2, the evaporative cooling unit includes a housing 4, and the corresponding sides of the housing 4 are respectively provided with a primary air inlet 13 and an air supply outlet 23, and the primary air inlet 13 is sequentially provided with a filter 15, Air partition 16 , indirect evaporative cooling section, return air section, direct evaporative cooling section, water baffle 26 and blower fan 25 .

The air supply port 23 is provided with an air supply port regulating valve 24 , and the air supply port 23 is connected to the cold air delivery channel 3 .

The indirect evaporative cooling section includes a plate-tube indirect evaporative cooler 12, the top of the tube indirect evaporative cooler 12 is provided with a water distributor a34, and the bottom of the tube indirect evaporative cooler 12 is provided with a circulating water tank a17, and the water distributor a34 and the circulating water tank a17 are circulated The water pipe a19 is connected, and the circulating water pipe a19 is provided with a circulating water pump a18; the shell 4 corresponding to the top of the pipe indirect evaporative cooler is also provided with a secondary air outlet 32, and the secondary air outlet 32 is provided with a secondary air outlet. Exhaust fan 33 ; the casing 4 corresponding to the bottom of the tube indirect evaporative cooler 12 is also provided with a secondary air inlet 14 .

The plate-tube indirect evaporative cooler 12 is composed of a plurality of horizontally arranged plate heat exchange tubes.

The water distributor a34 is evenly provided with a plurality of spray nozzles a35 facing the plate-tube indirect evaporative cooler 36; the water distributor b28 is evenly provided with a plurality of spray nozzles b27 facing the plate-tube indirect evaporative cooler 22.

The water baffle 26 adopts dry packing, which is used to filter out excess moisture in the air.

The air return section includes a unit return air outlet 30 located on the top of the corresponding housing 4 . A return air fan 31 is arranged in the unit return air outlet 30 .

The direct evaporative cooling section includes direct evaporative cooling packing 22, the top of the direct evaporative cooling packing 22 is provided with a water distributor b28, the bottom of the direct evaporative cooling packing 22 is provided with a circulating water tank b21, the water distributor b28 and the circulating water tank b21 are connected through a circulating water pipe b29, A circulating water pump b20 is provided on the circulating water pipe b29.

The cold air conveying channel 3 is located at the bottom of the floor of the data center computer room, and several air outlet holes 2 are evenly distributed on the cold air conveying channel 3 and pass through the floor, and are connected with the cold aisle 11 in the data center computer room. The cold aisle is composed of two opposite server cabinets 1 , and the air outlet side of the server cabinets 1 forms a hot aisle 10 with the computer room of the data center.

The cold air delivery channel 3 transmits the cold air from the evaporative cooling unit to the server cabinet for direct cooling, avoiding energy loss. The cold air after heat exchange flows out from the air outlet side of the server cabinet 1, and is discharged from the solar chimney 7 after passing through the hot channel 10 .

The exhaust system includes no less than two solar chimneys 7, each solar chimney 7 top is provided with a solar chimney air outlet 9, and the bottom of each solar chimney 7 is connected with the hot channel 10 of the data center machine room; A top cap 8 is also arranged on the mouth 9 .

The working process of the utility model evaporative cooling ventilation air-conditioning system is as follows:

(1) Working process of evaporative cooling air conditioning unit

The working process of the first water system is as follows:

The circulating water in the circulating water tank a17 is sucked by the circulating water pump a18, along the circulating water pipe a19 to the water distributor a34 above the plate tube indirect evaporative cooler 12; the circulating water is sprayed from the water distributor a34, The outer wall of the heat exchange tube of the plate tube indirect evaporative cooler 36 forms a water film. Under the action of the secondary air exhaust fan 33, the secondary air and water undergo heat and moisture exchange, and the temperature of the plate tube wall is reduced through heat transfer, thereby cooling The primary air in the plate tube; the circulating water after sufficient heat and moisture exchange with the secondary air falls into the circulating water tank a17, and so on.

The working process of the second water system is as follows:

The circulating water in the circulating water tank b21 is sucked by the circulating water pump b20, along the circulating water pipe b29 to the water distributor b28; the water sprayed from the water distributor b28 is sprayed into the direct evaporative cooling filler 22, and directly A water film is formed in the evaporative cooling packing 22, which exchanges heat and moisture with the oncoming primary cold air, and the primary cold air cools down with isenthalpy; the water in the direct evaporative cooling packing 22 exchanges heat and moisture with the primary cold air and flows into the circulation directly below the section Water tank b21, so cycle.

(2) The working process of the wind system of the evaporative cooling air conditioning unit

The outdoor fresh air is divided into two parts and enters the unit through the air inlet, and part of it enters the unit through the secondary air inlet 14 as secondary air under the action of the secondary air exhaust fan 33, and enters the unit above the water tank a17 after being filtered by the filter 15. The outer wall of the tube indirect evaporative cooler 36 performs heat and moisture exchange with the circulating water sprayed by the water distributor a34, and the secondary air is discharged by the secondary air exhaust fan 33 after absorbing the heat of the primary air on the outer wall of the tube.

Part of the primary air enters the unit through the primary air inlet 13 under the action of the air supply fan 25, and after being filtered by the filter 15, it enters the inner wall of the plate-tube indirect evaporative cooler 36 heat exchange tube for iso-humid cooling. The final air is mixed with the return air from the return air pipe 5 in the return air section of the unit, and then isenthalpicly cooled by the direct evaporative cooling filler 22. The air after isenthalpy cooling is sent into the cold air delivery channel 3 through the blower 25, and then enters the data After passing through the cold aisle 11 and the hot aisle 10 in the central machine room, it is discharged through the solar chimney 7 .

The utility model evaporative cooling ventilation and air-conditioning system takes into account that evaporative cooling has the characteristics of large air volume, small enthalpy difference, cooling and humidification, and adopts the method of discharging hot air from the cold channel 11 in the data center, which can not only completely isolate the hot and cold air It can also avoid humidity accumulation in the machine room; in addition, a solar chimney 7 is set, and the hot air of the hot aisle 10 can be directly discharged outside through the solar chimney 7, eliminating the need for an exhaust fan, and optimizing the indoor airflow organization form; the combination of the two can fully The use of renewable energy sources such as solar energy and dry air energy from outdoor environments can minimize the energy consumption of data center cooling systems.

Claims (8)

1. combining the data center of solar chimney technology evaporation cooling channel air-conditioning system, which is characterized in that including setting In the evaporation cooling unit outside data center machine room, evaporates cooling unit and pass through cold wind transfer passage (3), backwind tube (5) respectively It is connect with data center machine room, is additionally provided with exhaust system at the top of the data center machine room；

The evaporation cooling unit includes shell (4), and the corresponding two sides of shell (4) are respectively arranged with First air air inlet (13) and send Air port (23), in First air air inlet (13) according to air-flow direction be disposed with filter (15), wind isolation board (16), Connect evaporation cooling section, air return section, direct evaporating-cooling section, water fender (26) and breeze fan (25)；

The cold wind transfer passage (3) is located at data center machine room floor bottoms, is uniformly distributed on cold wind transfer passage (3) several Exhaust vent (2) and be pierced by floor and in data center machine room cold passage (11) connect；

Return air inlet regulating valve (6) are additionally provided in the backwind tube (5).

2. evaporation cooling channel air-conditioning system according to claim 1, which is characterized in that setting in the air outlet (23) Have air outlet regulating valve (24), and air outlet (23) connects cold wind transfer passage (3).

3. evaporation cooling channel air-conditioning system according to claim 1, which is characterized in that the indirect evaporating-cooling section packet Rubbing board pipe indirect evaporation cooler (12), pipe indirect evaporation cooler (12) top are provided with water distributor a (34), pipe indirect evaporation Cooler (12) bottom is provided with cyclic water tank a (17), and water distributor a (34) and cyclic water tank a (17) pass through circulating water pipe a (19) It connects, is provided with water circulating pump a (18) on circulating water pipe a (19)；

It is additionally provided with Secondary Air exhaust outlet (32) on corresponding shell (4) at the top of the pipe indirect evaporation cooler, Secondary Air row Secondary Air exhaust blower (33) are provided in air port (32)；

Secondary Air air inlet (14) are additionally provided on the corresponding shell (4) in pipe indirect evaporation cooler (12) bottom.

4. evaporation cooling channel air-conditioning system according to claim 1, which is characterized in that the air return section include be located at pair The unit return air inlet (30) at the top of shell (4) is answered, is provided with return air fan (31), unit return air inlet in unit return air inlet (30) (30) it is also connect by backwind tube (5) with data center machine room.

5. evaporation cooling channel air-conditioning system according to claim 1, which is characterized in that the direct evaporating-cooling section packet It includes direct evaporating-cooling filler (22), is provided with water distributor b (28), direct evaporating-cooling at the top of direct evaporating-cooling filler (22) Filler (22) bottom is provided with cyclic water tank b (21), and water distributor b (28) and cyclic water tank b (21) are connected by circulating water pipe b (29) It connects, water circulating pump b (20) is provided on circulating water pipe b (29).

6. evaporation cooling channel air-conditioning system according to claim 1, which is characterized in that the cold passage is opposite by two Server cabinet (1) composition, the air side of server cabinet (1) and data center machine room form the passage of heat (10).

7. evaporation cooling channel air-conditioning system according to claim 1, which is characterized in that the exhaust system includes many Solar chimney exhaust outlet (9) are equipped at the top of two solar chimneys (7), each solar chimney (7), each solar energy Chimney (7) bottom is connect with the passage of heat of data center machine room (10).

8. evaporation cooling channel air-conditioning system according to claim 1, which is characterized in that the solar chimney exhaust outlet (9) top cap (8) are additionally provided on.