Air cooling system for recovering waste heat

Abstract

The utility model relates to the technical field of heating, ventilation and air conditioning, and particularly provides an air cooling system for recovering waste heat, which comprises a first circulating system, a second circulating system and a third circulating system, the first circulating system comprises a first water pipe, and heat supply equipment, a circulating water pump and a heat utilization unit which are connected into a circulating loop through the first water pipe; the second circulating system comprises a second water pipe, and heat exchange equipment, a spraying water pump and cold source equipment which are connected into a circulating loop through the second water pipe; the third circulating system comprises an air pipe, and a data machine room, a ventilator, heat supply equipment and heat exchange equipment which are connected into a circulating loop through the air pipe; the heat supply equipment is provided with an evaporator and a condenser; the evaporator absorbs heat in the air pipe, and the heat is transferred to the first water pipe after being released by the condenser; the heat exchange equipment is used for heat exchange between the second water pipe and the air pipe. The waste heat recovery system overcomes the defect that waste heat recovery cannot be performed due to lack of a water loop, and can recover a large amount of waste heat and reduce the temperature of a machine room.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of heating ventilation air conditioning, specifically relates to a waste heat recovery air cooling system. BACKGROUND

[0002] At present, data center is a high energy consumption facility, and a large amount of heat is usually generated, and these energies are regarded as a renewable energy resource. Waste heat recovery refers to converting the heat generated by the data center into other purposes, such as heating or other energy needs. This way can reduce the energy consumption of the data center, and reduce the consumption of other energy.

[0003] However, a large number of data rooms use indirect evaporative cooling technology, and the water ring loop in the mechanical and electrical system is cancelled, which greatly increases the difficulty of collecting waste heat in the data center, and there is a lack of effective waste heat utilization technology in the market to correspond to it, which is a technical blank. UTILITY MODEL CONTENT

[0004] In view of the problems existing in the above-mentioned existing construction technology, the utility model provides a waste heat recovery air cooling system, which overcomes the defect that the computer room cannot recover waste heat without water ring loop, and avoids the difficulty of layout, arrangement and operation of data room, cabinet, server and other equipment.

[0005] The utility model provides a waste heat recovery air cooling system, which comprises a first circulating system, a second circulating system and a third circulating system, the first circulating system comprises a first water pipe and a heat supply device, a circulating water pump and a heat using unit connected into a circulating loop through the first water pipe, the second circulating system comprises a second water pipe and a heat exchange device, a spray water pump and a cold source device connected into a circulating loop through the second water pipe, and the third circulating system comprises a wind pipe and a data room, a ventilator, the heat supply device and the heat exchange device connected into a circulating loop through the wind pipe, the heat supply device is provided with an evaporator and a condenser, the evaporator absorbs heat in the wind pipe, and heat is transmitted to the first water pipe after heat release through the condenser, and the heat exchange device is used for heat exchange between the second water pipe and the wind pipe.

[0006] Further, the input end of the wind pipe is the roof of the data room, and the output end of the wind pipe is the ground of the data room.

[0007] Further, the ventilator is arranged on the wind pipe between the data room and the heat supply device.

[0008] Further, the ventilator is arranged on the wind pipe between the heat supply device and the heat exchange device.

[0009] Further, the ventilator is arranged on the air pipe between the heat supply device and the data machine room.

[0010] Further, the cold source device is an open cooling tower, a closed cooling tower, a multi-stage evaporative cooling device or an indirect evaporative cooling device.

[0011] The beneficial effects of the utility model are: the waste heat output by the data machine room is recycled and transmitted to the first water pipe through the evaporator and the condenser of the heat supply device, and the heat is used by the heat using unit, the return air after cooling is output to the data machine room, and the temperature of the return air is further reduced under the heat exchange of the third circulation system, so that the temperature of the data machine room is reduced. The defects of lacking water loop and being unable to recycle waste heat are overcome, a large amount of waste heat can be recycled, hot water with different purposes is generated, and the energy saving potential is very high. The modification in the machine room is not large, the data machine room, the cabinet and other areas are not affected, the investment cost is very low, the energy efficiency of the data center can be greatly improved, and the utility model has high popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structure diagram of the air cooling system for recycling waste heat of the utility model.

[0013] In the figure: 1-heat supply device; 2-heat exchange device; 3-ventilator; 4-data machine room; 5-spraying water pump; 6-cold source device; 7-circulating water pump; 8-heat using unit. DETAILED DESCRIPTION

[0014] The application will be further described in detail in combination with the drawings and specific embodiments:

[0015] As shown in the air cooling system for recycling waste heat, the air cooling system for recycling waste heat comprises a first circulation system, a second circulation system and a third circulation system. Figure 1

[0016] The first circulation system comprises a first water pipe and a heat supply device 1, a circulating water pump 7 and a heat using unit 8 connected into a circulation loop through the first water pipe;

[0017] The second circulation system comprises a second water pipe and a heat exchange device 2, a spraying water pump 5 and a cold source device 6 connected into a circulation loop through the second water pipe;

[0018] The third circulation system comprises a data machine room 4, a ventilator 3, a heat supply device 1 and a heat exchange device 2 connected into a circulation loop through an air pipe;

[0019] The first circulation system and the third circulation system share the heat supply device 1, and the second circulation system and the third circulation system share the heat exchange device 2.

[0020] In Figure 1 ​The water pipeline side, the heating device 1 is provided with an evaporator and a condenser; the evaporator absorbs the heat in the air pipe, and the heat is transmitted to the first water pipe after being cooled by the condenser, the water flowing through the first water pipe is heated to form waste heat water with a temperature of 40-95 DEG C, which is output to the heat using unit 8, and the circulating water pump 7 provides power for the hot water flowing in the first water pipe; the heat exchange device 2 is used for heat exchange between the second water pipe and the air pipe. The heat in the air pipe is absorbed by the evaporator, the temperature of the return air in the air pipe is reduced, and the temperature of the return air in the air pipe is further reduced after heat exchange with the second water pipe with lower temperature through the heat exchange device 2, and is returned to the data center 4.

[0021] The input end of the air pipe is the roof of the data center 4, and can also be below the roof, and the output end of the air pipe is the ground of the data center 4, and can also be above the ground.

[0022] The ventilator 3 is arranged on the air pipe between the data center 4 and the heating device 1, or on the air pipe between the heating device 1 and the heat exchange device 2, or on the air pipe between the heating device 1 and the data center 4.

[0023] Similarly, the first water pipe has two branch pipes, and the two branch pipes are respectively connected to the heating device 1 and the heat using unit 8, and the circulating water pump 7 can be arranged on any branch pipe. The second water pipe also has two branch pipes, and the two branch pipes are respectively connected to the heat exchange device 2 and the cold source device 6, and the spray water pump 5 is arranged on any branch pipe of the second water pipe. The cold source device 6 is an open cooling tower, a closed cooling tower, a multi-stage evaporative cooling device or an indirect evaporative cooling device. Among them, the cold source device 6 provides cooling water with a temperature of 5-25 DEG C to the second water pipe.

[0024] In Figure 1 The air pipe side shown in the figure, the hot air that absorbs heat from the data center 4 is preferentially cooled through the heating device 1, and then further cooled through the heat exchange device 2. The air cooled twice is sent back to the data center 4 to absorb heat, and the cycle is repeated.

[0025] As described above, the waste heat recycling air cooling system of the embodiment has great research and improvement on key nodes such as waste heat utilization and energy cascade utilization, can recycle a large amount of waste heat to generate hot water with different purposes on the basis of maintaining the number of hours of original natural cold source utilization, has high energy saving potential, and is particularly important for energy saving and consumption reduction of data centers in northern regions.

[0026] The above are only preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical scheme falling within the concept of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application are also considered to be within the protection scope of the present application.

Claims

1. An air cooling system for recovering waste heat, characterized by, The first circulation system, the second circulation system and the third circulation system are provided. The first circulation system comprises a first water pipe and a heat supply device, a circulating water pump and a heat utilization unit connected into a circulation loop through the first water pipe. The second circulation system comprises a second water pipe and a heat exchange device, a spray water pump and a cold source device connected into a circulation loop through the second water pipe. The third circulation system comprises an air pipe and a data center, a ventilator, the heat supply device and the heat exchange device connected into a circulation loop through the air pipe. The heat supply device is provided with an evaporator and a condenser; the evaporator absorbs heat in the air pipe, and transmits heat to the first water pipe after heat release through the condenser; the heat exchange device is used for heat exchange between the second water pipe and the air pipe.

2. The air cooling system for recovering waste heat according to claim 1, wherein An input end of the air pipe is a roof of the data center, and an output end of the air pipe is a ground of the data center.

3. The air cooling system for recovering waste heat according to claim 1, wherein The ventilator is arranged on the air pipe between the data center and the heat supply device.

4. The air cooling system for recovering waste heat according to claim 1, wherein The ventilator is arranged on the air pipe between the heat supply device and the heat exchange device.

5. The air cooling system of claim 1, wherein, The ventilator is arranged on the air pipe between the heat supply device and the data center.

6. The air cooling system for recovering waste heat according to claim 1, wherein The cold source device is an open cooling tower, a closed cooling tower, a multi-stage evaporative cooling device or an indirect evaporative cooling device.

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