Waste heat recovery evaporative cooling device

Abstract

The utility model relates to the technical field of waste heat recovery, and discloses a waste heat recovery evaporative cooling device which comprises a data machine room, an air feeder is arranged on the right side of the data machine room, and a cooling assembly is arranged on the right side of the air feeder and connected with a dehumidification rotating wheel so that outdoor fresh air extracted by the air feeder can be injected into the data machine room after being dehumidified and cooled. A regeneration fan is arranged on the left side of the top side of the dehumidification rotating wheel, a condenser is arranged on the right side of the regeneration fan, a machine room exhaust fan is arranged on the top of the left side of the data machine room, and the top of the machine room exhaust fan is connected with the bottom of the condenser through a conversion assembly. According to the utility model, the waste heat of the indoor exhaust air is recycled and is used as the regeneration heating quantity of the dehumidification rotating wheel, so that the required high-temperature dry air can be obtained. And for the intercooler, the air volume of the secondary air is smaller than that of the primary air, and the intercooler can obtain higher cooling efficiency as long as the dry and high-temperature air is used as the secondary air of the intercooler.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a waste heat recovery evaporation cooling device. Background Art

[0002] Data centers are an important representative of the new productive forces in China. The electricity consumption and heat dissipation of data centers are the ultimate determinants of the development prospects of computing power.

[0003] At present, whether it is an ordinary data room or a smart computing center or a supercomputing center, various refrigeration equipment is used to produce cold energy and send it into the computer room to balance and eliminate the heat dissipated by the cabinets. Among various refrigeration methods, evaporative cooling is the most economical refrigeration method. It is a technology that uses natural cold sources - dry air energy to achieve refrigeration.

[0004] In the northern region, due to the low wet-bulb temperature of the air and the large dry-wet bulb temperature difference, the efficiency of evaporative cooling is relatively high. In the southern region, the wet-bulb temperature is generally high and the dry-wet bulb temperature difference is small, so the operating efficiency of evaporative cooling equipment is naturally low. In view of this technical problem, the waste heat recovery evaporation cooling device is proposed in this application. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies in the prior art, and a waste heat recovery evaporation cooling device is proposed. By using the waste heat recovered from the exhaust air in the recovery chamber as the regeneration heating amount of the dehumidification wheel, the required high-temperature dry air can be obtained. For the intercooler, the air volume of the secondary air is less than that of the primary air. Only by using the dry and high-temperature air as the secondary air of the intercooler, the intercooler can obtain a higher cooling efficiency.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] The waste heat recovery evaporation cooling device includes a data computer room. A fan is arranged on the right side of the data computer room. A cooling component is connected to a dehumidification wheel on the right side of the fan for dehumidifying and cooling the outdoor fresh air extracted by the fan and injecting it into the data computer room. A regeneration fan is arranged on the left side of the top of the dehumidification wheel. A condenser is arranged on the right side of the regeneration fan. A computer room exhaust fan is arranged on the top left of the data computer room. The top of the computer room exhaust fan is connected to the bottom of the condenser through a conversion component for converting the hot air extracted from the data computer room by the computer room exhaust fan into heat and injecting it into the condenser.

[0008] Further, the cooling component includes a main intercooler arranged on the right side of the fan, and a pre-cooling intercooler is arranged on the left side of the dehumidification wheel.

[0009] Further, the left side of the main intercooler is connected to the right side of the pre-cooling intercooler.

[0010] Furthermore, the conversion component includes a compressor disposed at the bottom of the condenser, and an evaporator is disposed on the left side at the top of the machine room exhaust fan.

[0011] Furthermore, the top of the evaporator is connected to the bottom of the compressor.

[0012] Furthermore, a secondary air fan is disposed at the top of the main intercooler.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, by using the waste heat recovered from the indoor exhaust air as the regeneration heating amount of the dehumidification rotor, the required high-temperature dry air can be obtained. For the intercooler, the air volume of the secondary air is smaller than that of the primary air. Only by using the dry and high-temperature air as the secondary air of the intercooler, the intercooler can obtain a higher cooling efficiency. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the waste heat recovery evaporation cooling device proposed by the utility model.

[0016] Legend Explanation:

[0017] 1. Data machine room; 2. Supply air fan; 3. Main intercooler; 4. Pre-cooling intercooler; 5. Dehumidification rotor; 6. Regeneration fan; 7. Condenser; 8. Compressor; 9. Evaporator; 10. Machine room exhaust fan. Specific Embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Refer to Figure 1, an embodiment provided by the present utility model: a waste heat recovery evaporative cooling device, which includes a data machine room 1. A fan 2 is arranged on the right side of the data machine room 1. A main intercooler 3 is arranged on the right side of the fan 2. A pre-cooling intercooler 4 is arranged on the left side of the dehumidifying rotary wheel 5. The left side of the main intercooler 3 is connected to the right side of the pre-cooling intercooler 4 to dehumidify and cool the outdoor fresh air extracted by the fan 2 and then inject it into the data machine room 1. A secondary fan is arranged on the top of the main intercooler 3. A regeneration fan 6 is arranged on the left side of the top of the dehumidifying rotary wheel 5. A condenser 7 is arranged on the right side of the regeneration fan 6. An engine room exhaust fan 10 is arranged on the top left of the data machine room 1. A compressor 8 is arranged at the bottom of the condenser 7. An evaporator 9 is arranged on the top left of the engine room exhaust fan 10. The top of the evaporator 9 is connected to the bottom of the compressor 8 to convert the hot air extracted from the data machine room 1 by the engine room exhaust fan 10 into heat and inject it into the condenser 7. The outdoor fresh air enters the main intercooler 3 under the action of the fan 2, and the air is cooled. The cooled air is sent to the engine room under the action of the fan 2 to cool the cabinet equipment in the room. After the air sent into the room cools the cabinet equipment, the temperature rises. Under the action of the exhaust fan 10, this air flow is discharged into the evaporator 9. After the heat in the exhaust air is absorbed by the evaporator 9, the temperature drops, and then it is discharged into the atmosphere. The refrigerant liquid in the evaporator 9 absorbs the heat in the exhaust air and becomes a gas. The refrigerant gas enters the condenser 7 after being pressurized and heated by the compressor 8. In the condenser 7, the refrigerant gas releases heat and becomes a liquid. The high-pressure normal-temperature refrigerant liquid becomes a low-pressure normal-temperature liquid after being depressurized by the throttle valve and enters the evaporator 9. The outdoor fresh air enters the condenser 7 of the heat pump, and the air is heated and the temperature rises. The high-temperature air then enters the regeneration area of the dehumidifying rotary wheel 5 to heat and desorb the adsorbent on the dehumidifying rotary wheel. The desorbed humid air enters the treatment area of the dehumidifying rotary wheel 5, and the water vapor component in the air is adsorbed and separated on the dehumidifying rotary wheel. The air temperature rises and the moisture content decreases. The high-temperature and dry air then enters the pre-cooling intercooler 4, and the cooled dry air enters the secondary channel of the main intercooler 3. The air in the secondary channel performs heat and mass exchange refrigeration with the water film on the heat exchange vertical wall. After the refrigeration is completed, the humid air is discharged into the atmosphere by the secondary fan on the top of the main intercooler 3.

[0020] Working principle: Outdoor fresh air enters the main intermediate cooler 3 under the action of the supply fan 2, and the air is cooled. The cooled air is sent to the machine room under the action of the supply fan 2 to cool the cabinet equipment in the room. After the air sent into the room cools the cabinet equipment, the temperature rises, and under the action of the exhaust fan 10, this air flow is discharged into the evaporator 9. After the heat in the exhaust air is absorbed by the evaporator 9, the temperature decreases, and then it is discharged into the atmosphere. The refrigerant liquid in the evaporator 9 absorbs the heat in the exhaust air and turns into a gas. The refrigerant gas enters the condenser 7 after being pressurized and heated by the compressor 8. In the condenser 7, the refrigerant gas releases heat and turns into a liquid. The high-pressure normal-temperature refrigerant liquid becomes a low-pressure normal-temperature liquid after being depressurized by the throttle valve and enters the evaporator 9. Outdoor fresh air enters the condenser 7 of the heat pump, and the air is heated and the temperature rises. The high-temperature air then enters the regeneration area of the dehumidifying rotating wheel 5 to heat and desorb the adsorbent on the dehumidifying rotating wheel. The desorbed humid air enters the treatment area of the dehumidifying rotating wheel 5, and the water vapor component in the air is adsorbed and separated on the dehumidifying rotating wheel. The air temperature rises and the moisture content decreases. The high-temperature dry air then enters the pre-cooling intermediate cooler 4, and the cooled dry air enters the secondary channel of the main intermediate cooler 3. The air in the secondary channel undergoes heat and mass exchange refrigeration with the water film on the heat exchange vertical wall. After the refrigeration is completed, the humid air is discharged into the atmosphere by the secondary fan at the top of the main intermediate cooler 3.

[0021] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Waste heat recovery evaporation cooling device, characterized in that, It includes a data machine room (1). A blower (2) is arranged on the right side of the data machine room (1). A cooling component is connected to a dehumidification runner (5) on the right side of the blower (2) for dehumidifying and cooling the outdoor fresh air extracted by the blower (2) and then injecting it into the data machine room (1). A regeneration blower (6) is arranged on the left side of the top of the dehumidification runner (5). A condenser (7) is arranged on the right side of the regeneration blower (6). A machine room exhaust fan (10) is arranged at the top left of the data machine room (1). The top of the machine room exhaust fan (10) is connected to the bottom of the condenser (7) through a conversion component for converting the hot air extracted from the data machine room (1) by the machine room exhaust fan (10) into heat and injecting it into the condenser (7).

2. The waste heat recovery evaporation cooling device according to claim 1, wherein: The cooling component includes a main intercooler (3) arranged on the right side of the blower (2), and a pre-cooling intercooler (4) is arranged on the left side of the dehumidification runner (5).

3. The waste heat recovery evaporation cooling device according to claim 2, wherein: The left side of the main intercooler (3) is connected to the right side of the pre-cooling intercooler (4).

4. The waste heat recovery evaporative cooling device according to claim 1, characterized in that: The conversion component includes a compressor (8) arranged at the bottom of the condenser (7), and an evaporator (9) is arranged on the top left of the machine room exhaust fan (10).

5. The waste heat recovery evaporation cooling device according to claim 4, characterized in that: The top of the evaporator (9) is connected to the bottom of the compressor (8).

6. The waste heat recovery evaporative cooling device according to claim 2, wherein: A secondary blower is arranged on the top of the main intercooler (3).

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