Direct evaporative cooling unit for data center

Abstract

The utility model discloses a direct evaporative cooling radiating unit for a data center, which relates to the technical field of air cooling and comprises a wet film dry cooler unit, an air handling unit and a pipeline, a water pump and a filter are mounted on the outer side of one end of the pipeline, and the filter is arranged on the right side of the water pump. The wet film dry cooler unit is connected with the air handling unit through a pipeline, the air handling unit is arranged on one side of the wet film dry cooler unit and comprises a unit shell, an air return channel and an air supply channel, and the air return channel is arranged above the air supply channel. According to the direct evaporative cooling heat dissipation unit for the data center, a natural cold source is utilized, energy conservation and emission reduction are facilitated, adjustment can be conducted according to indoor temperature and air humidity through mutual cooperation of the fresh air valve, the air return valve and the exhaust valve, multiple operation modes are achieved, and the requirements of different seasons are met.

Description

Technical Field

[0001] The utility model relates to the technical field of air cooling, in particular to a direct evaporative cooling and heat dissipation unit for a data center. Background Art

[0002] Data centers maintain a rapid development trend in terms of newly added data center computer room areas, but there are still some problems such as excessive energy consumption and high PUE, which will hinder the sustainable development of the data center construction industry. Therefore, the use of natural cooling sources to cool the computer rooms has become a future development trend.

[0003] Evaporative cooling air conditioning technology is a cooling method that uses dry air energy to obtain the cooling capacity required for air conditioning. It can reduce electricity consumption and has significant energy-saving effects. It provides a basis for the widespread use of evaporative cooling air-conditioning units, making evaporative cooling technology have a great role to play in data centers. However, the existing indirect evaporative cooling heat exchange efficiency is generally 50% to 80%, while the direct evaporative cooling heat exchange efficiency is generally 70% to 90%. It can be seen that direct evaporative cooling has higher efficiency, longer natural cooling time, and better energy-saving effects. Reasonable use of direct evaporative cooling air-conditioning units has considerable economic and social benefits, and is conducive to energy conservation and emission reduction.

[0004] Based on this, a direct evaporative cooling unit for a data center is now provided, which can eliminate the drawbacks of existing equipment. Utility Model Content

[0005] The utility model aims to provide a direct evaporative cooling and heat dissipation unit for a data center, so as to solve the problems of excessively high energy consumption and high PUE in data centers in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A direct evaporative cooling and heat dissipation unit for a data center comprises a wet film dry cooler unit, an air handling unit, and a pipeline. A water pump and a filter are installed on the outside of one end of the pipeline. The filter is arranged on the right side of the water pump. The wet film dry cooler unit is connected to the air handling unit through a pipeline. The air handling unit is arranged on one side of the wet film dry cooler unit. The air handling unit comprises a unit casing, a return air duct and an air supply duct. The return air duct is arranged above the air supply duct.

[0008] Preferably, the wet film dry cooler unit includes a fan, cooling coils are symmetrically arranged below the fan, an outdoor temperature and humidity sensor is arranged between two cooling coils, a first wet film assembly is installed on the opposite sides of the two cooling coils, and a first spray atomizer is arranged on the side of the first wet film assembly away from the cooling coil.

[0009] Preferably, the return air channel includes an exhaust port and a return air port, a bottom return air port is arranged below the exhaust port, an air filter is arranged on one side of the return air port, a return air temperature and humidity sensor is arranged on one side of the air filter, a return air fan is arranged on one side of the return air temperature and humidity sensor, an exhaust valve is arranged on the outside of the exhaust port, and a return air valve is arranged on the outside of the bottom return air port.

[0010] Preferably, the air supply channel includes an air mixing section, a filtering section, a cooling section and an air supply section, and the air mixing section, the filtering section, the cooling section and the air supply section are arranged in sequence from left to right along the direction of air supply, and a fresh air inlet is provided at one end of the air supply channel close to the air mixing section, and an air supply inlet is provided at one end of the air supply channel close to the air supply section, and a fresh air valve is installed on the outside of the fresh air inlet.

[0011] Preferably, the air mixing section is composed of a bottom return air inlet, a fresh air inlet and a space enclosed by the unit casing, and a fresh air temperature and humidity sensor and a primary air filter are installed inside the air mixing section.

[0012] Preferably, the filter section is composed of a primary air filter and a space enclosed by a unit casing, and a medium-efficiency air filter is installed inside the filter section.

[0013] Preferably, the cooling section includes a fin coil, a second spray atomizer, a second wet film assembly, a water collecting tray and a water baffle, and the fin coil, the second spray atomizer, the second wet film assembly, the water collecting tray and the water baffle are arranged in sequence from left to right along the air supply direction.

[0014] Preferably, the air supply section is composed of an air supply port and a space enclosed by a unit casing, an air supply fan is installed inside the air supply section, and an air supply temperature and humidity sensor is provided inside the air supply port.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model provides a direct evaporative cooling heat dissipation unit for a data center, which utilizes a natural cold source to reduce dependence on traditional refrigerants, thereby being beneficial to energy conservation and emission reduction. At the same time, direct evaporative cooling technology is more energy efficient than indirect evaporative cooling. Through the mutual cooperation between the fresh air valve, the return air valve and the exhaust valve, it can be adjusted according to the indoor temperature and air humidity to achieve a variety of operating modes to meet the needs of different seasons. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of a wet film dry cooler unit and an air handling unit of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the wet film dry cooler unit of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the air handling unit of the utility model.

[0021] Notes on reference numerals: wet film dry cooler unit 100, fan 101, outdoor temperature and humidity sensor 102, cooling coil 103, first wet film assembly 104, first spray atomizer 105, water pump 106, filter 107, air handling unit 200, return air duct 201, exhaust valve 202, return air valve 203, fresh air temperature and humidity sensor 204, fresh air valve 205, mixed air section 206, primary air filter 207, filter section 208, medium efficiency air filter Device 209, fin coil 210, cooling section 211, second spray atomizer 212, second wet membrane assembly 213, air supply channel 214, water collecting tray 215, water baffle 216, air supply fan 217, air supply section 218, supply air temperature and humidity sensor 219, air filter 220, return air temperature and humidity sensor 221, return air fan 222, exhaust port 223, bottom return air port 224, fresh air port 225, supply air port 226, return air port 227, pipeline 300. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] Example 1

[0024] In this embodiment, if Figure 1-Figure 4 As shown, a direct evaporative cooling and heat dissipation unit for a data center includes a wet film dry cooler unit 100, an air handling unit 200, and a pipeline 300. A water pump 106 and a filter 107 are installed on the outside of one end of the pipeline 300. The filter 107 is arranged on the right side of the water pump 106. The inlet and outlet of the cooling coil 103 are connected to the inlet and outlet of the fin coil 210 of the air handling unit 200 through the pipeline 300, thereby forming a cooling closed circulation system. The water pump 106 and the filter 107 are connected to the air handling unit 200. The closed-loop system is connected in series, the wet-film dry cooler unit 100 is connected to the air handling unit 200 through the pipeline 300, the air handling unit 200 is arranged on one side of the wet-film dry cooler unit 100, and the air handling unit 200 includes a unit housing, a return air duct 201 and an air supply duct 214, and the return air duct 201 is arranged above the air supply duct 214. Through the return air duct 201 and the air supply duct 214, the heat exchange between the indoor and outdoor air of the data center is realized, which is beneficial to energy saving and emission reduction;

[0025] Among them Figure 1 and Figure 3 As shown, the wet film dry cooler unit 100 includes a fan 101, which can automatically adjust the speed according to the temperature of the liquid inside the fin coil 210 to save energy. The cooling coil 103 is symmetrically arranged below the fan 101. When the outdoor temperature is low, the coolant in the pipeline 300 is transported to the cooling coil 103 by the water pump 106 for cooling. The cooled liquid enters the fin coil 210 to exchange heat with the high-temperature air passing through the fin tube. The liquid after absorbing heat enters the cooling coil 103 to exchange heat again, and the high-temperature air is cooled to low-temperature air in this reciprocating cycle. An outdoor temperature and humidity sensor 102 is arranged between the two cooling coils 103, and a first wet film assembly 104 is installed on the opposite side of the two cooling coils 103. A first spray atomizer 105 is arranged on the side of the first wet film assembly 104 away from the cooling coil 103. When the outdoor temperature is high, the first spray atomizer 105 sprays water on the first wet film assembly 104, and uses high-temperature air and water to exchange heat and mass, thereby reducing the temperature of the air entering the cooling coil 103, so that the temperature of the liquid in the cooling coil is further reduced, thereby improving the automatic heat dissipation effect;

[0026] Among them Figure 1 and Figure 4 As shown, the return air duct 201 includes an exhaust port 223 and a return air port 227, a bottom return air port 224 is arranged below the exhaust port 223, an air filter 220 is arranged on one side of the return air port 227, a return air temperature and humidity sensor 221 is arranged on one side of the air filter 220, so as to sense the temperature and humidity inside the return air duct 201, a return air fan 222 is arranged on one side of the return air temperature and humidity sensor 221, an exhaust valve 202 is arranged on the outside of the exhaust port 223, the exhaust valve 202 controls the opening and closing of the exhaust port 223 and the ventilation volume, a return air valve 203 is arranged on the outside of the bottom return air port 224, the return air valve 203 controls the opening and closing of the return air port 224 and the ventilation volume, the indoor air of the data center passes through the return air duct 201 and the return air fan 222 to reach the bottom return air port 224, and then enters the inside of the air supply duct 214;

[0027] Among them Figure 2As shown, the air supply channel 214 includes an air mixing section 206, a filtering section 208, a cooling section 211 and an air supply section 218. The air mixing section 206, the filtering section 208, the cooling section 211 and the air supply section 218 are arranged in sequence from left to right along the direction of air supply. A fresh air inlet 225 is arranged at one end of the air supply channel 214 close to the air mixing section 206. The fresh air inlet 225 is used to transport outdoor air, so that the outdoor air is filtered by the primary air filter 207 and the medium-efficiency air filter 209, and then transported to the data center computer room by the air supply fan 217. An air supply port 226 is arranged at one end of the air supply channel 214 close to the air supply section 218. A fresh air valve 205 is installed on the outside of the fresh air inlet 225. The fresh air valve 205 controls the opening and closing of the fresh air inlet 225 and the ventilation volume, and can be adjusted according to the indoor temperature and air humidity to achieve multiple operation modes to meet the needs of different seasons.

[0028] Example 2

[0029] The difference from Example 1 is that Figure 4 As shown, the air mixing section 206 is composed of a bottom return air port 224, a fresh air port 225 and a space enclosed by the unit casing. A fresh air temperature and humidity sensor 204 and a primary air filter 207 are installed inside the air mixing section 206. The fresh air temperature and humidity sensor 204 is convenient for sensing the temperature and humidity inside the air mixing section 206. The primary air filter 207 is used to filter the air.

[0030] Among them Figure 4 As shown, the filter section 208 is composed of a primary air filter 207 and a space enclosed by the unit housing, and a medium-efficiency air filter 209 is installed inside the filter section 208. The function of the medium-efficiency air filter 209 is to improve the filtering and purification effect of the air;

[0031] Among them Figure 4 As shown, the cooling section 211 includes a fin coil 210, a second spray atomizer 212, a second wet film assembly 213, a water collecting tray 215 and a water baffle 216. The unvaporized water flows along the second wet film assembly 213 to the inside of the water collecting tray 215, and then the second spray atomizer 212 continues to spray and atomize, thereby improving the utilization efficiency of water. The function of the water baffle 216 is to filter out water droplets. The fin coil 210, the second spray atomizer 212, the second wet film assembly 213, the water collecting tray 215 and the water baffle 216 are arranged in sequence from left to right along the air supply direction. When the outdoor temperature is too high, the automatic program turns on the second spray atomizer 212, sprays water on the surface of the second wet film assembly 213, so that the air performs heat and mass exchange on the surface of the second wet film assembly 213, transfers heat to water, and makes the water absorb heat and evaporate to form steam that enters the air, thereby reducing the air temperature and increasing the humidity.

[0032] Among them Figure 4As shown, the air supply section 218 is composed of an air supply outlet 226 and a space enclosed by the unit casing. An air supply fan 217 is installed inside the air supply section 218. The air supply fan 217 is convenient for conveying new air to the data center. An air supply temperature and humidity sensor 219 is provided inside the air supply outlet 226 to sense the temperature and conduct real-time monitoring to ensure the indoor temperature of the data center.

[0033] When in use, by controlling the opening and closing of the fresh air valve 205, the exhaust valve 202 and the return air valve 203, and then operating the water pump 106, when the outdoor air temperature is low, the coolant in the pipeline 300 is transported by the water pump 106 to the cooling coil 103 for cooling, and the cooled liquid enters the fin coil 210 to exchange heat with the high-temperature air passing through the fin tube, and the liquid after absorbing heat is then transported by the water pump 106 to the cooling coil 103 for heat exchange, and in this reciprocating cycle, the indoor high-temperature air of the data center reaches the mixed air section 206 through the return air channel 201 , and then cooled by the fin coil 210, it is sent into the data center by the air blower 217, and the heat generated by the indoor equipment of the data center is transferred to the outside; when the outdoor air temperature is high, the outdoor air passes through the fresh air outlet 225, and then filtered by the primary air filter 207 and the medium-efficiency air filter 209, passes through the fin coil 210 and the second wet membrane component 213, and is then sent to the data center computer room by the air blower 217. In this way, new air is continuously transported to the data center computer room, and after absorbing the heat of the computer room, it is continuously discharged from the data center computer room.

[0034] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A direct evaporative cooling and heat dissipation unit for a data center, comprising a wet film dry cooler unit (100), an air handling unit (200), and a pipeline (300), characterized in that: A water pump (106) and a filter (107) are installed on the outside of one end of the pipeline (300); the filter (107) is arranged on the right side of the water pump (106); the wet film dry cooler unit (100) is connected to an air handling unit (200) through the pipeline (300); the air handling unit (200) is arranged on one side of the wet film dry cooler unit (100); the air handling unit (200) comprises a unit casing, a return air channel (201) and an air supply channel (214); the return air channel (201) is arranged above the air supply channel (214).

2. The direct evaporative cooling unit for a data center according to claim 1, characterized in that: The wet film dry cooler unit (100) comprises a fan (101), cooling coils (103) are symmetrically arranged below the fan (101), an outdoor temperature and humidity sensor (102) is arranged between two cooling coils (103), first wet film assemblies (104) are installed on opposite sides of the two cooling coils (103), and a first spray atomizer (105) is arranged on the side of the first wet film assembly (104) away from the cooling coils (103).

3. The direct evaporative cooling unit for a data center according to claim 1, characterized in that: The return air channel (201) comprises an exhaust port (223) and a return air port (227); a bottom return air port (224) is arranged below the exhaust port (223); an air filter (220) is arranged on one side of the return air port (227); a return air temperature and humidity sensor (221) is arranged on one side of the air filter (220); a return air fan (222) is arranged on one side of the return air temperature and humidity sensor (221); an exhaust valve (202) is arranged on the outside of the exhaust port (223); and a return air valve (203) is arranged on the outside of the bottom return air port (224).

4. The direct evaporative cooling unit for a data center according to claim 1, characterized in that: The air supply channel (214) comprises an air mixing section (206), a filtering section (208), a cooling section (211) and an air supply section (218); the air mixing section (206), the filtering section (208), the cooling section (211) and the air supply section (218) are arranged in sequence from left to right along the direction of air supply; a fresh air inlet (225) is arranged at one end of the air supply channel (214) close to the air mixing section (206); an air supply inlet (226) is arranged at one end of the air supply channel (214) close to the air supply section (218); and a fresh air valve (205) is installed on the outer side of the fresh air inlet (225).

5. The direct evaporative cooling and heat dissipation unit for a data center according to claim 4, characterized in that: The air mixing section (206) is composed of a bottom return air port (224), a fresh air port (225) and a space enclosed by the unit casing, and a fresh air temperature and humidity sensor (204) and a primary air filter (207) are installed inside the air mixing section (206).

6. The direct evaporative cooling unit for a data center according to claim 4, characterized in that: The filtering section (208) is composed of a primary air filter (207) and a space enclosed by a unit casing, and a medium-efficiency air filter (209) is installed inside the filtering section (208).

7. The direct evaporative cooling unit for a data center according to claim 4, characterized in that: The cooling section (211) comprises a fin coil (210), a second spray atomizer (212), a second wet film assembly (213), a water collecting tray (215) and a water baffle (216); the fin coil (210), the second spray atomizer (212), the second wet film assembly (213), the water collecting tray (215) and the water baffle (216) are arranged in sequence from left to right along the air supply direction.

8. The direct evaporative cooling unit for a data center according to claim 4, characterized in that: The air supply section (218) is composed of an air supply port (226) and a space enclosed by the unit casing. An air supply fan (217) is installed inside the air supply section (218), and an air supply temperature and humidity sensor (219) is arranged inside the air supply port (226).

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