CN-115988845-B - Self-cleaning fresh air cooling system suitable for data center machine room in cold region and intelligent control method thereof

CN115988845BCN 115988845 BCN115988845 BCN 115988845BCN-115988845-B

Abstract

The invention discloses a self-cleaning fresh air cooling system suitable for a data center machine room in a cold area and an intelligent control method thereof. The air outlet outside the self-cleaning fresh air cooling unit of the machine room is communicated with the self-hanging shutter air outlet through a pipeline and an electric closed air valve, the air inlet outside the self-cleaning fresh air cooling unit is communicated with the shutter air outlet through a pipeline and an electric closed air valve, the air inlet inside the self-cleaning fresh air cooling unit of the machine room is communicated with the upper part of the air conditioner of the machine room through a pipeline, the lower part of the air conditioner of the machine room is communicated with the lower part of a cabinet of a data center through a fan, a lower air supply opening and an air inlet of the cabinet, and the upper part of the cabinet of the data center is communicated with the air return pipeline through an air outlet and an air return opening of the cabinet. The invention can be widely used in air-conditioning rooms with large heat dissipation capacity of indoor equipment such as a data center machine room and the like and the indoor temperature needs to be controlled, and has wide application prospect in China, especially in northeast, north China, northwest and other cold areas.

Inventors

LOU LANLAN
Xing Shanshuo
ZHU KAI
ZHANG NING

Assignees

大连理工大学人工智能大连研究院
大连群智科技有限公司

Dates

Publication Date: 20260508
Application Date: 20230118

Claims (2)

1. A self-cleaning fresh air cooling system suitable for a data center machine room in a cold region comprises a machine room formed by an upper beam (19), two outer walls (17) and a lower precast slab (20), wherein a special air conditioner outdoor unit (7) is arranged outside the machine room, and the self-cleaning fresh air cooling system is characterized in that a data center machine cabinet (9), a machine room air conditioner (5) and a machine room self-cleaning fresh air cooling unit (1) are respectively arranged in the machine room, and the data center machine cabinet (9) is arranged in a ceiling (15), A lower air supply opening (8) is formed between an overhead floor (13) and a lower precast slab (20) in a space formed by a partition wall (14) and the overhead floor (13), a cabinet air inlet (10) is formed in the lower part of a data center cabinet (9), a cabinet air outlet (11) is formed in the upper part of the data center cabinet (9), a heat exchange coil (6) communicated with a special air conditioner outdoor unit (7) through a pipeline is arranged in a machine room air conditioner (5), a self-cleaning fresh air cooling unit (1) of the machine room is close to an outer wall (17) on one side, an outer window (18) sequentially provided with a self-hanging louver air inlet (3) and a louver air inlet (4) from top to bottom is arranged on the outer wall (17), an outer air outlet (30) of the self-cleaning fresh air cooling unit (1) of the machine room is communicated with the self-hanging louver air inlet (3) through a pipeline and an electric airtight air valve (2), an outer fresh air inlet (29) of the self-cleaning fresh air cooling unit (1) of the machine room is communicated with the louver air inlet (4) through the pipeline and the electric airtight air valve (2), an inner fresh air inlet (29) of the machine room is communicated with the machine room (5) through the pipeline and the lower part of the machine room air conditioner (5) through the air conditioner the lower air supply opening (8) and the cabinet air inlet (10) are communicated with the lower part of a data center cabinet (9), the upper part of the data center cabinet (9) is communicated with an air return pipeline (16) through an air return opening (12) arranged on a cabinet air outlet (11) and a ceiling (15), one path of the air return pipeline (16) is communicated with the upper part of a machine room air conditioner (5) through an electric closed air valve (2), and the other path of the air return pipeline is communicated with an inner side air outlet (30) of a machine room self-cleaning fresh air cooling unit through the electric closed air valve (2), the machine room self-cleaning fresh air cooling unit (1) comprises a machine shell (28) and a heat recovery rotating wheel (21), a self-cleaning rotating wheel type filter (22) in the machine room self-cleaning fresh air cooling unit, A filter wind speed adjusting plate (23), a motor (24), a fresh air fan (25), an exhaust fan (26), a baffle plate (27), a fresh air port (29), The air speed adjusting plate (23) is positioned between the heat recovery runner (21) and the self-cleaning runner filter (22), the opening degree of the filter air speed adjusting plate (23) is adjusted according to the front-rear pressure difference of the filter, the front-rear pressure difference delta P of the filter is measured through a pressure difference sensor, if delta P is larger than or equal to the upper limit of a pressure difference set value, the air speed adjusting plate in a fresh air cooling unit of a machine room is arranged at the minimum opening degree of 30%, if delta P is smaller than the lower limit of the pressure difference set value, the air speed adjusting plate in the fresh air cooling unit of the machine room is arranged at the maximum opening degree of 100%, if the lower limit of the pressure difference set value is smaller than or equal to the upper limit of the pressure difference set value, the opening degree of the air speed adjusting plate in the fresh air cooling unit of the machine room is adjusted according to a linear relation and is used for achieving the effect of back blowing self-cleaning, the fresh air fan (25) is positioned between the self-cleaning runner filter (22) and the fresh air opening (29), if delta P is larger than or equal to the upper limit of the pressure difference set value, the air speed adjusting plate in the fresh air cooling unit (25) is arranged in the middle of the self-cleaning runner filter (22) and the air opening (30), the fresh air fan (26) is separated by a partition plate (27), the fresh air speed adjusting plate and the fresh air adjusting plate (26) is respectively dragged by the partition plate (21) and the self-cleaning runner (21) to the inside the self-cleaning runner (31) through the corresponding to the air opening (30).
2. The intelligent control method of the self-cleaning fresh air cooling system suitable for the data center room in the cold area according to claim 1, comprising the following steps: 1) The energy-saving self-adaptive setting of the indoor temperature, namely optimizing and setting a set value of the indoor temperature according to the outdoor temperature; 2) The intelligent control of fresh air ratio is that the opening of an electric closed air valve on an air exhaust unit and a fresh air pipeline of a self-cleaning fresh air cooling unit of a machine room is regulated according to the outdoor temperature, so that the room temperature is maintained within a set value range; 3) The start-stop control of the compressor of the special air conditioner outdoor unit comprises the steps of determining the start-stop of the compressor according to the outdoor temperature; 4) And the intelligent self-cleaning control of the filter, namely controlling the opening degree of the wind speed regulating plate according to the pressure difference between the front and the rear of the filter.

Description

Self-cleaning fresh air cooling system suitable for data center machine room in cold region and intelligent control method thereof Technical Field The invention belongs to the technical field of cooling systems, and relates to a self-cleaning fresh air cooling system suitable for a data center room in a cold area and an intelligent control method thereof. Background The heat productivity of the equipment in the machine room of the data center is large, the cooling load of the equipment air conditioner accounts for more than 90% of the total load of the room, and the temperature of the machine room is required to be controlled below 25 ℃ all the year round in order to ensure the safe work of the equipment of the data center, so that the machine room needs to be cooled by the air conditioner all the year round. At present, the cooling of the air conditioner in the machine room almost completely uses electric dragging of a special air conditioning unit for the cold machine room, so that the annual running electric charge is very high. In order to reduce the cooling operation cost of the air conditioner of the machine room, if the natural cooling capacity of the outdoor fresh air is utilized to cool the machine room in winter and transitional seasons, the operation cost of the air conditioner of the machine room can be greatly reduced. In addition, in order to fully utilize the cold energy of the fresh air, heat recovery equipment is often added in an air conditioning unit. The heat recovery rotating wheel is used as a common energy-saving device and is commonly used in the fields of air conditioning, ventilation, dust removal, refrigeration, chemical industry and the like. In the air conditioning field, the heat recovery runner needs to be matched with a filter to be used so as to realize the effects of fresh air filtration and pollutant concentration control. However, the traditional filter needs to be replaced in time after being used for a period of time, and the service life of the filter is shorter in the occasion with larger fresh air quantity. Therefore, the fresh air cooling system capable of fully utilizing the outdoor fresh air natural cooling capacity in winter and excessive seasons and realizing the self-cleaning function and the intelligent control method thereof have great practical value, and the problems of cooling the air conditioner of the machine room all the year around and saving the running cost of the air conditioner of the machine room can be solved by matching with the special air conditioner set of the existing machine room. Disclosure of Invention The invention aims to provide a self-cleaning fresh air cooling system suitable for a data center machine room in a cold region and an intelligent control method thereof, so as to realize the aims of cooling the air conditioner of the data center machine room all the year round, saving the running cost of the air conditioner of the machine room and simultaneously maintaining the continuous running of a fresh air unit for a long time. The invention adopts the technical scheme that: A self-cleaning fresh air cooling system suitable for a data center machine room in a cold area comprises a machine room formed by an upper beam, outer walls at two sides and a lower precast slab, wherein a special air conditioner outdoor unit is arranged at the outer side of the machine room; a data center cabinet, a machine room air conditioner and a machine room self-cleaning fresh air cooling unit are respectively arranged in the machine room; the self-cleaning fresh air supply unit is arranged on an outer wall of the side, and is provided with an outer window which is sequentially provided with a self-hanging louver air inlet and a louver air inlet from top to bottom, an outer air outlet of the self-cleaning fresh air supply unit is communicated with the self-hanging louver air inlet through a pipeline and an electric closed air valve, an outer fresh air inlet of the self-cleaning fresh air supply unit is communicated with the louver air inlet through the pipeline and the electric closed air valve, an inner fresh air inlet of the self-cleaning fresh air supply unit is communicated with the upper part of the machine room air conditioner through a fan, the lower air inlet and the air inlet of the machine room air conditioner, the upper part of the self-cleaning fresh air supply unit is communicated with the lower part of the data center through the fan, the lower air inlet and the air inlet of the machine room, the self-cleaning fresh air supply unit is communicated with the upper part of the machine room air conditioner through the electric closed air valve, the self-cleaning fresh air supply unit, the self-cleaning filter, and the self-cleaning filter, the self-cleaning fresh air supply unit, and the self-cleaning filter The air-speed adjusting plate of the filter is positioned between the heat recovery rotating wheel and the self-cleaning rotating wheel type