CN103500000A - Refrigerating system for data machine room - Google Patents

Abstract

The invention discloses a refrigerating system for a data machine room, which comprises: the air conditioner comprises a cabinet and an air conditioner unit, wherein at least part of the air conditioner unit is arranged in the cabinet, the cabinet comprises at least one equipment area, the air conditioner unit is arranged on one side of the equipment area, and a partition plate is detachably arranged between the equipment area and the air conditioner unit. The air conditioning unit is arranged in the cabinet, and directly refrigerates the equipment, so that the refrigerating efficiency is improved compared with that of a traditional refrigerating system; according to the invention, the air conditioning unit is directly arranged in the cabinet, so that compared with the traditional refrigeration system, the operability of arranging the air conditioning unit between the cabinets is improved, the disassembly and the assembly are convenient, and the construction cost and the material cost are reduced.

Description

Cooling system for data center

technical field

The invention relates to the technical field of air conditioning, in particular to a refrigeration system for a data machine room.

Background technique

In the network era of modern data concentration, computers are miniaturized and cabinet-sized, and servers are thinned and bladed. They are characterized by smaller and smaller volumes, but the electronic power density is constantly increasing. Under such conditions, the refrigeration system in the computer room is under increasing test.

The cabinet air conditioner is specially designed for the application in the communication field, such as solving the heat dissipation problems of outdoor communication cabinets, wireless outdoor cabinet base stations, battery cabinets, etc. It is mainly used to take away the heat generated by the electrical energy consumed by electrical components, providing an ideal temperature and humidity environment for the interior of various cabinets, and at the same time isolating dust and corrosive gases in the external environment, prolonging the service life of electrical components and improving the operation of the machine system reliability. The products are suitable for electrical control boxes, communication, communication equipment, data processing boxes and heavy electrical equipment control boxes, etc.

The traditional rack air conditioner is actually a computer room air conditioner, which ensures that the operating environment of the server equipment is at a suitable temperature by adjusting the overall temperature of the computer room. However, the air conditioner in the computer room is generally placed far away from the server cabinet, and the air is supplied through the air supply duct. The static pressure of the air supply is high, and the power consumption of the fan is high. In addition, since the air conditioner in the computer room is to adjust the overall temperature of the computer room, the largest source of heat is the server cabinet. Therefore, in order to ensure the ambient temperature of the server equipment in the cabinet, it is necessary to adjust the overall temperature of the computer room to be very low, so that the utilization rate of the air conditioner is reduced.

There is also a rack air conditioner in the prior art, which arranges the air conditioner unit between adjacent servers. For example, Chinese patent document CN102681637A discloses a "large-scale heating server cabinet heat dissipation and cooling system", as shown in Figure 1, which includes a server cabinet 100 and a refrigeration unit 200, and the refrigeration unit 200 is arranged on two adjacent server cabinets 100 In between, the refrigerating unit 200 includes a heat exchanger 201 and an axial flow fan 202 arranged on the side of the heat exchanger. This method is generally implemented after the installation of the server cabinet is completed. Since the position of the cabinet has been fixed, it has limitations when disassembling and assembling the air-conditioning unit, which brings inconvenience to the installation and maintenance of the air-conditioning equipment; It is relatively close, but it is still necessary to seal the cold air of the air conditioning unit or the heat emitted by the cabinet with materials such as glass plates to form cold or hot aisles. This way of sealing cold or hot aisles requires additional material costs, and the overall equipment room The temperature is also easily affected, and it is often necessary to use an air conditioner to cool down the computer room to ensure that the overall temperature of the computer room is appropriate.

To sum up, the prior art rack air conditioner has defects such as low utilization rate of the air conditioner unit, inconvenient disassembly and assembly of the air conditioner unit, and high cost. It is urgent to propose a rack air conditioner suitable for servers in computer rooms to solve the above technical problems.

Contents of the invention

An object of the present invention is to provide a cooling system for a data computer room, which has high refrigeration efficiency for servers in the computer room.

Another object of the present invention is to provide a cooling system for a data center, which has the advantage of being easy to assemble and disassemble.

Another object of the present invention is to provide a cooling system for a data center, which has the advantage of low cost.

For reaching this purpose, the present invention adopts following technical scheme:

A refrigeration system for a data center, comprising: a cabinet and an air conditioning unit, the air conditioning unit is at least partly placed in the cabinet.

As a preferred solution, the cabinet includes at least one equipment area, the air-conditioning unit is arranged on one side of the equipment area, and a partition is detachably provided between the equipment area and the air-conditioning unit.

As a preferred solution, the cabinet is provided with an air-conditioning unit control box, and the air-conditioning unit control box and the air-conditioning unit are located on the same side of the equipment area.

In particular, the control box of the air conditioner unit is connected to the air conditioner unit through a connection device with a multi-contact connector.

As a preferred solution, the air conditioning unit includes a fan and a heat exchanger, the fan and the heat exchanger are located on the same side of the equipment area, and/or the fan is covered with the heat exchanger side.

In particular, there are two or more fans, and they are stacked one after the other in the vertical direction.

In particular, the heat exchanger is obliquely arranged on one side of the fan.

In particular, the heat exchanger includes heat exchange tubes and cooling fins arranged outside the heat exchange tubes, the heat exchange tubes are made of copper tubes, and are passed through chilled water or refrigerant.

As a preferred solution, one end of the air-conditioning unit that is provided with a heat exchanger is disposed inside the cabinet, and one end of the air-conditioning unit that is provided with a fan is disposed outside the cabinet.

Compared with the prior art, the beneficial effects of the present invention are: the present invention adopts the air-conditioning unit built into the cabinet, and the air-conditioning unit directly refrigerates the equipment, which improves the refrigeration efficiency compared with the traditional refrigeration system; the present invention directly installs the air-conditioning unit In the cabinet, compared with the traditional refrigeration system, the air-conditioning unit is arranged between the cabinets to improve operability, facilitate disassembly and assembly, and reduce construction and material costs.

Description of drawings

FIG. 1 is a schematic top view of a heat dissipation and cooling system for large-scale heat-generating server cabinets in the prior art.

Fig. 2 is a structural schematic diagram of the cooling system for the data center described in the embodiment.

Fig. 3 is a schematic top view of the cooling system for the data center according to the embodiment.

Fig. 4 is a schematic top view of another structure of the refrigeration system for a data center according to the present invention.

Fig. 5 is a schematic structural diagram of the air conditioning unit described in the embodiment.

Fig. 6 is an exploded view of the air conditioning unit shown in Fig. 5 .

Fig. 7 is a schematic structural view of the single-fan air-conditioning unit according to the present invention.

Fig. 8 is a schematic structural diagram of a four-fan air-conditioning unit according to the present invention.

Fig. 9 is a schematic structural diagram of the heat exchanger of the air-conditioning unit described in the embodiment.

Fig. 10 is another structural schematic diagram of the heat exchanger of the air conditioning unit according to the present invention.

In the picture:

100. Server cabinet; 200. Refrigeration unit; 201. Heat exchanger; 202. Axial flow fan;

1. Cabinet; 11. Unit area; 12. Equipment area; 111. Cabinet front side panel; 112. Cabinet rear side panel; 113. Cabinet partition; 114. Cabinet return air outlet; 115. Cabinet air inlet;

2. Air conditioning unit; 21. Fan; 22. Heat exchanger; 23. Unit box; 230. Box partition; 231. Front chamber; 232. Rear chamber; 233. Unit air outlet; 234. Unit return tuyere.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

The refrigeration system for a data center of the present invention includes: a cabinet and an air conditioning unit, the air conditioning unit is at least partly placed in the cabinet, the air conditioning unit is built into the cabinet, and the air conditioning unit directly cools the server equipment. The refrigeration efficiency can be improved, which brings convenience to installation and maintenance work, and can reduce construction cost and material cost.

Fig. 2 shows the structure of a refrigeration system for a data center of the present invention. In this embodiment, the refrigeration system includes: a cabinet 1 and an air-conditioning unit 2. A part of the air-conditioning unit 2 is placed in the cabinet 1, and the other part is placed in the cabinet 1 outside. It is easy for those skilled in the art to imagine that all the air-conditioning units can also be placed in the cabinet.

According to the refrigeration system for the data room shown in Figure 2, please refer to Figure 3 for a more specific solution. The cabinet 1 includes: a unit area 11 and four equipment areas 12 located on both sides of the unit area. The unit area 11 is used for installation The air-conditioning unit, the equipment area 12 is used for installing server equipment.

The rear and front sides of the equipment area 12 and the unit area 11 are respectively provided with a cabinet front side plate 111 and a cabinet rear side plate 112 , and a detachable cabinet partition 113 is provided between the equipment area 12 and the unit area 11 .

The air conditioner unit 2 includes a fan 21 and a heat exchanger 22. The fan 21 is located on one side of the heat exchanger 22 and is located at the front end of the air conditioner unit 2. This end is placed outside the unit area 11. The air conditioner unit 2 is provided with a heat exchanger 22 The end of the unit is placed in the unit area 11. A cabinet air return port 114 is provided on the cabinet partition plate 113 corresponding to the position of the heat exchanger 22 , and a cabinet air inlet port 115 is provided on the cabinet front side plate 111 . The opening method of the tuyere can be to open a plurality of holes on the cabinet partition or the front side plate of the cabinet to form a grid structure, or directly cut the plate to form a larger opening.

Please refer to FIG. 4 for a technical solution that is easily known to those skilled in the art. The difference from the cooling system for the data center shown in FIG. The cabinet air return port 114 is still opened at the position corresponding to the rear end of the cabinet partition plate 113 and the heat exchanger 22 , and the cabinet air inlet port 115 is opened at the position corresponding to the front end of the cabinet partition plate 113 and the fan 21 .

The above two refrigeration systems for data center use the structure of the cabinet itself and the air conditioning unit to form air supply and return channels. Compared with the traditional refrigeration system, which requires additional channels, the implementation of the scheme of the present invention is more convenient and the cost is reduced.

Fig. 5, 6 shows the structure of a kind of air-conditioning unit of the present invention, and in the present embodiment, air-conditioning unit comprises a unit case 23, and the unit case 23 is divided into front and rear chambers by a case partition 230 231, 232, the fan 21 is installed on the box partition 230 and is located in the front chamber 231, the heat exchanger 22 is installed on one side of the fan and is located in the rear chamber 232, the front wall plate, upper wall plate, The position of the left wall plate and the right wall plate corresponding to the fan is provided with a unit air supply port 233, and the position of the rear wall plate and the right wall plate of the unit box 23 corresponding to the heat exchanger is provided with a unit air return port 234. The quantity, position and structural form of the unit air supply port 233 and the unit return air port 234 can be adjusted according to actual needs. For example, the unit air supply port in the scheme shown in the figure adopts an air supply grid structure, and the unit return air port adopts an opening structure on the plate .

The air-conditioning unit of the present invention can adopt a single-fan structure (see FIG. 7 ), a double-fan structure or a four-fan structure (see FIG. 8 ), etc. according to actual needs. If two or more fan structures are adopted, these fans are stacked in sequence in the vertical direction. The superimposed size of the two single-fan structures is the same as that of the double-fan structure, and the superimposed size of the two double-fan structures is the same as that of the four-fan structure, so that it is convenient to expand the unit according to actual needs.

The heat exchanger of the present invention preferably includes heat exchange tubes and cooling fins arranged outside the heat exchange tubes, and the heat exchange tubes are copper tubes. The heat exchanger of the air conditioning unit can adopt the chilled water system or the refrigerant system. If a chilled water system is used, a two-way valve or a three-way valve can be used to control the chilled water flow; if a refrigerant system is used, a capillary tube or an expansion valve can be used to control the refrigerant flow.

One or more sets of heat exchangers can be used. Fig. 9 shows a kind of heat exchanger arrangement form of the present invention, and in this embodiment, the quantity of heat exchanger 22 is a group, and one end of heat exchanger 22 is placed on the top of the rear left side of rear chamber 232 , the other end is placed at the bottom on the right side of the front, and the whole is arranged in a three-dimensional diagonal line in the rear chamber. Corresponding to the heat exchanger, the unit return air outlet 234 is provided on the rear wall and the right wall of the unit box 23, and the air is returned from the rear side and the right side of the unit. If one end of the heat exchanger is placed on the top of the rear right side of the rear chamber, the other end is placed on the bottom of the front left side, and the whole is arranged in the rear chamber in a three-dimensional diagonal line, then the corresponding The rear wall and left wall of the unit are provided with air return outlets for the unit, and the air is returned from the rear side and left side of the unit. It can be seen that the way of return air is related to the direction of the inclination of the replacement heater. In addition, a return air outlet can also be provided on the top wall of the unit box as required to increase the return air area.

Fig. 10 shows another heat exchanger arrangement form of the present invention, the number of the heat exchangers is two groups, one of the ends of the two groups of heat exchangers 22 is arranged at intervals, and the other end is arranged in contact, so that the two The set of heat exchangers is arranged in the rear chamber 232 in a "V" shape as a whole, and one end of the "V" structure is placed on the top of the rear chamber 232 , and the other end is placed on the bottom of the rear chamber 232 . Corresponding to the heat exchanger, set the unit return air outlet 234 on the rear wall, right wall and left wall of the unit box 23, and return air from the rear side, right side and left side of the unit. In addition, a return air outlet can also be provided on the top wall of the unit box as required to increase the return air area.

The working process of the refrigeration system for the data center in this embodiment is described in conjunction with Fig. 3: the hot air flow emitted by the server in the equipment area passes through the return air outlet of the cabinet and the air return port of the unit in turn, and is sucked by the fan in the unit area, and the air flows through the heat exchanger for heat exchange A cold air flow is formed, which flows through the fan and sends air to the left and right sides through the air outlet of the unit. The air flow forms a wind screen in front of the equipment area, and is sucked into the equipment area by the cooling fan located in the equipment area through the cabinet air inlet on the front side panel of the cabinet. The server equipment in the equipment area dissipates heat, and then the hot air flow with increased temperature is inhaled by the fan in the unit area again, and so on.

In order to better control the work of the unit, an air-conditioning unit control box is installed in the unit area, and the air-conditioning unit control box and the air-conditioning unit can be connected through a connecting device with a multi-contact connector.

The first temperature sensor used to detect the air supply temperature is installed at the air supply port of the unit, and the second sensor used to detect the air inlet temperature entering the equipment area is installed at the air inlet of the cabinet. Both the first temperature sensor and the second temperature sensor are connected with the air conditioner. The unit control box is connected. A third temperature sensor for detecting return air temperature is provided at the air return port of the cabinet or at the air return port of the unit, and the third temperature sensor is connected with the control box of the air conditioning unit. According to the temperature detected by the first temperature sensor and the temperature detected by the second temperature sensor, the loss of cold air during the conveying process can be known. If the loss is large, the control box of the air conditioning unit adjusts the chilled water flow and the fan speed. According to the return air temperature detected by the third temperature sensor, the temperature environment of the equipment area can be known, and the chilled water flow and fan speed can be adjusted through the air conditioning unit control box as required.

The above describes the technical principles of the present invention in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present invention, and cannot be construed as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation modes of the present invention without creative efforts, and these modes will all fall within the protection scope of the present invention.

Claims (10)

1. a data center module refrigeration system comprises: rack and air-conditioning unit, it is characterized in that, and described air-conditioning unit is placed in described rack at least partly.

2. data center module refrigeration system according to claim 1, is characterized in that, described rack comprises at least one battery limits, and described air conditioner is mounted on a side of described battery limits, dismountable dividing plate that is provided with between described battery limits and described air-conditioning unit.

3. data center module refrigeration system according to claim 2, is characterized in that, is provided with air-conditioning unit control enclosure in described rack, and described air-conditioning unit control enclosure and described air-conditioning unit are positioned at the homonymy of described battery limits.

4. data center module refrigeration system according to claim 3, is characterized in that, between described air-conditioning unit control enclosure and described air-conditioning unit, by the coupling arrangement with multiple-contact connectors, is connected.

5. according to the described data center module refrigeration system of claim 2 to 4 any one, it is characterized in that, described air-conditioning unit comprises blower fan, heat interchanger;

Described blower fan and described heat interchanger are positioned at the homonymy of described battery limits; And/or,

Described blower fan is covered with the side in described heat interchanger.

6. data center module refrigeration system according to claim 5, is characterized in that, described blower fan has two or more, and in the vertical direction is cascading.

7. data center module refrigeration system according to claim 5, is characterized in that, described heat interchanger tilts to be located at a side of described blower fan.

8. data center module refrigeration system according to claim 5, is characterized in that, described heat interchanger comprises heat exchanger tube and is located at the outer radiating fin of described heat exchanger tube, described heat exchanger tube employing copper tube, and pass to chilled water or cold-producing medium.

9. data center module refrigeration system according to claim 7, is characterized in that, described heat interchanger comprises heat exchanger tube and is located at the outer radiating fin of described heat exchanger tube, described heat exchanger tube employing copper tube, and pass to chilled water or cold-producing medium.

10. according to the described data center module refrigeration system of claim 6 to 9 any one, it is characterized in that, described air-conditioning unit arranges an end of heat interchanger and is located in described rack, and described air-conditioning unit arranges an end of blower fan and is located at outside described rack.

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