CN219577708U

CN219577708U - Machine room refrigerating system

Info

Publication number: CN219577708U
Application number: CN202320551500.9U
Authority: CN
Inventors: 王旭强; 付宇飞; 崔晓
Original assignee: Jiaxing Century Internet Information Technology Co ltd
Current assignee: Jiaxing Century Internet Information Technology Co ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-08-22
Anticipated expiration: 2033-03-17

Abstract

The utility model discloses a machine room refrigerating system which comprises a cooling tower, a cooling pump, a water chilling unit, a freezing pump and a cold storage tank, wherein the cooling tower, the cooling pump and the water chilling unit form a first cooling loop, the water chilling unit is connected with the cooling tower through a pipeline, and the cooling pump is arranged in a pipeline between the cooling tower and the water chilling unit; the refrigeration pump, the cold accumulation tank and the water chilling unit form a second cooling loop, the water chilling unit is connected with the cold accumulation tank through a pipeline, and the refrigeration pump is arranged in the pipeline between the cold accumulation tank and the water chilling unit. The second cooling circuit is capable of storing cold in the cold storage tank. The cold storage tank can be cooled to a first designated temperature by natural cooling when the air temperature is low. When the air temperature is high, the cold accumulation tank is cooled to a second designated temperature, and then is charged with cold, so that a sufficient cold source is provided for the machine room through the circulation. Compared with a refrigerating system with an all-weather starting cooling tower and a cooling pump, the utility model has lower energy consumption.

Description

Machine room refrigerating system

Technical Field

The utility model relates to the technical field of refrigeration, in particular to a machine room refrigeration system.

Background

At present, the rapid development of internet companies generates more and more data, and the data center industry explosively develops. The equipment in the data center machine room needs to be cooled, and the energy consumption of the refrigerating system is high. Current machine room refrigeration systems use cooling towers to dissipate heat from cooling water. When the cold source is needed to be provided, the cooling tower and the cooling pump are started. While disabling the chiller reduces most of the energy consumption, turning on the cooling tower and cooling pump all-weather will also result in significant power loss.

Disclosure of Invention

The machine room refrigerating system provided by the utility model reduces the energy consumption of the refrigerating system.

The machine room refrigerating system provided by the embodiment of the utility model comprises a cooling tower, a cooling pump, a water chilling unit, a freezing pump and a cold accumulation tank, wherein the cooling tower, the cooling pump and the water chilling unit form a first cooling loop, the water chilling unit is connected with the cooling tower through a pipeline, and the cooling pump is arranged in a pipeline between the cooling tower and the water chilling unit; the refrigeration pump, the cold accumulation tank and the water chilling unit form a second cooling loop, the water chilling unit is connected with the cold accumulation tank through a pipeline, and the refrigeration pump is arranged in the pipeline between the cold accumulation tank and the water chilling unit.

In the above embodiment, the second cooling circuit is capable of storing the cold in the cold storage tank. When the air temperature is low (in winter), the cold storage tank can be cooled to the first designated temperature through natural cooling. When the air temperature is high, the cooling tower and the cooling pump are closed, and the refrigerating pump and the cold accumulation tank are only required to be started to cool to a second designated temperature, and then the cooling tank is charged with cold, so that the circulation is used for providing a sufficient cold source for the machine room. Compared with a refrigerating system with an all-weather starting cooling tower and a cooling pump, the utility model has lower energy consumption.

In an optional technical scheme, the second cooling loop further comprises a first pipeline, a second pipeline, a third pipeline, a first valve, a second valve and a third valve, the water chilling unit is communicated with the cold accumulation tank through the first pipeline and the second pipeline, the third pipeline is arranged between the first pipeline and the second pipeline, the first valve is arranged on the third pipeline, and the second valve and the third valve are respectively arranged on two sides of a node of the third pipeline and the second pipeline.

In an alternative technical scheme, the third valve is an opening valve.

In an optional technical scheme, the machine room refrigerating system further comprises a first water-cooling air conditioner, and the first water-cooling air conditioner is connected with the cold accumulation tank pipeline.

In an optional technical scheme, the machine room refrigerating system further comprises a second water-cooling air conditioner, and the second water-cooling air conditioner is arranged between the cooling pump and the water chilling unit.

In an optional technical scheme, the number of the cold accumulation tanks is multiple, and the multiple cold accumulation tanks are arranged in parallel.

In an alternative solution, the volumes of the plurality of cold accumulation tanks are different.

In an alternative technical scheme, the number of the cold accumulation tanks is four.

In an optional technical scheme, the machine room refrigerating system is installed in a machine room, an office area is arranged in the machine room, and the air outlet of the first water-cooling air conditioner and/or the air outlet of the second water-cooling air conditioner are/is arranged in the office area.

In an optional technical scheme, the machine room refrigerating system is installed in a machine room, an equipment area is arranged in the machine room, and an air outlet of the first water-cooling air conditioner and/or the second water-cooling air conditioner is arranged in the equipment area.

Drawings

Fig. 1 is a schematic structural diagram of a machine room refrigeration system according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a machine room refrigeration system according to another embodiment of the present utility model.

Reference numerals:

1-a cooling tower; 2-a cooling pump; 3-a water chilling unit; 4-a cryopump; 5-a cold accumulation tank; 6-a first pipeline; 7-a second pipeline; 8-a third pipeline; 9-a first water-cooling air conditioner; 10-a second water-cooling air conditioner; 15-a first valve; 13-a second valve; 16-third valve.

Detailed Description

In order to solve the problem of high energy consumption of a data center machine room, the embodiment of the utility model provides a machine room refrigerating system. The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

Fig. 1 is a schematic structural diagram of a machine room refrigeration system according to an embodiment of the present utility model. As shown in fig. 1, a machine room refrigerating system provided by an embodiment of the present utility model includes a cooling tower 1, a cooling pump 2, a chiller 3, a cryopump 4, and a cold storage tank 5. The cooling tower 1, the cooling pump 2 and the water chilling unit 3 form a first cooling loop, the water chilling unit 3 is connected with the cooling tower 1 through a pipeline, and the cooling pump 2 is arranged in the pipeline between the cooling tower and the water chilling unit 3. The refrigeration pump 4, the cold accumulation tank 5 and the water chilling unit 3 form a second cooling loop, the water chilling unit 3 is connected with the cold accumulation tank through a pipeline, and the refrigeration pump is arranged in a pipeline between the cold accumulation tank and the water chilling unit.

In the above embodiment, the second cooling circuit is capable of storing the cold in the cold storage tank 5. When the air temperature is low (winter), the cold storage tank 5 can be charged to the first prescribed temperature by way of natural cooling. When the air temperature is high, the cooling tower 1 and the cooling pump 2 are closed, and the refrigerating pump 4 and the cold accumulation tank 5 are only required to be started to cool to the second designated temperature, and then the cooling is carried out, so that the circulation is used for providing a sufficient cold source for the machine room. Compared with a refrigerating system with an all-weather starting cooling tower and a cooling pump, the utility model has lower energy consumption.

Fig. 2 is a schematic structural diagram of a machine room refrigeration system according to another embodiment of the present utility model. In an alternative embodiment, as shown in fig. 2, the second cooling circuit further includes a first pipeline 6, a second pipeline 7, a third pipeline 8, a first valve 15, a second valve 13, and a third valve 16, where the chiller 3 is communicated with the cold storage tank 5 through the first pipeline 6 and the second pipeline, the third pipeline 8 is disposed between the first pipeline 6 and the second pipeline 7, the first valve 15 is disposed on the third pipeline 8, and the second valve 13 and the third valve 16 are disposed on two sides of a node between the third pipeline 8 and the second pipeline 7, respectively.

In the specific selection of the valve type, opening valves may be selected as the above-described first, second and third valves 15, 13 and 16 so that the flow rate of the piping can be adjusted as needed. The specific operation is as follows, the cooling pump 2 and the cooling tower 1 are turned on, the first valve 15 is closed, and the second valve 13 and the third valve 16 are opened. At this time, in a recoil cooling mode of the cold storage tank, the chiller 3 cools and transfers the cooling capacity to the cold storage tank 5.

With continued reference to fig. 1, in an alternative embodiment, the machine room refrigeration system further includes a first water-cooled air conditioner 9, where the first water-cooled air conditioner 9 is connected to the cold storage tank 5 through a pipeline. The water chiller 3, the cooling pump 2 and the cooling tower 1 are closed, and at this time, the cooling mode of the cold storage tank 5 is set, and the cold storage tank 5 discharges cold to the first cold water air conditioner 9 for terminal cooling. The working process of the machine room refrigerating system is as follows: after the flushing cooling is finished, the cooling tower and the cooling pump are turned off to be in a cooling mode. When the cooling is performed for the rest 15 minutes, the cooling pump and the cooling tower are started to be changed into a reverse cooling mode, and after the back flushing cooling is finished, the cooling tower and the cooling pump are closed and then the cooling mode is started. In this way, the cycle is completed.

In an alternative embodiment, as shown in fig. 2, the machine room refrigeration system may further include a second water-cooled air conditioner 10, where the second water-cooled air conditioner 10 is disposed between the refrigeration pump 4 and the chiller 3.

In a specific embodiment, an area may be divided in the machine room, which may be used for offices or as other functional areas. Generally, an air-cooled air conditioner is installed in an office area, and the air-cooled air conditioner dissipates heat by using a fan and a radiator. In this embodiment, the air outlet of the second water-cooled air conditioner 10 may be disposed in the area. The second water-cooled air conditioner 10 uses chilled water in the second cooling circuit as a cooling source. By adding the pipeline in the second cooling loop and installing the second cold water air conditioner 10, the office area is refrigerated, and the energy consumption is saved.

Similarly, the air outlet of the first water-cooled air conditioner 9 may be provided in an office area, or the air outlets of the first water-cooled air conditioner 9 and the second water-cooled air conditioner 10 may be both provided in the office area.

In another specific embodiment, the area where the equipment is placed in the machine room is an equipment area, and the air outlet of the first water-cooled air conditioner and/or the air outlet of the second water-cooled air conditioner may also be disposed in the equipment area to cool the equipment.

In an alternative embodiment, the number of the cold accumulation tanks 5 is plural, and the plurality of cold accumulation tanks 5 are arranged in parallel. Specifically, the machine room refrigeration system of the present utility model may be provided with four cold storage tanks 5.

In alternative embodiments, the volumes of the plurality of cold storage tanks 5 may be different. The volume of the cold accumulation tank 5 can be specifically selected according to the need.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A machine room refrigerating system is characterized by comprising a cooling tower, a cooling pump, a water chilling unit, a freezing pump and a cold storage tank, wherein,

the cooling tower, the cooling pump and the water chilling unit form a first cooling loop, the water chilling unit is connected with the cooling tower through a pipeline, and the cooling pump is arranged in the pipeline between the cooling tower and the water chilling unit;

the refrigeration pump, the cold accumulation tank and the water chilling unit form a second cooling loop, the water chilling unit is connected with the cold accumulation tank through a pipeline, and the refrigeration pump is arranged in the pipeline between the cold accumulation tank and the water chilling unit.

2. The machine room refrigeration system of claim 1, wherein the second cooling circuit further comprises a first pipeline, a second pipeline, a third pipeline, a first valve, a second valve and a third valve, the chiller is communicated with the cold storage tank through the first pipeline and the second pipeline, the third pipeline is arranged between the first pipeline and the second pipeline, the first valve is arranged on the third pipeline, and the second valve and the third valve are respectively arranged on two sides of a node of the third pipeline and the second pipeline.

3. The machine room refrigeration system of claim 2, wherein the third valve is an open valve.

4. The machine room refrigeration system of claim 1, further comprising a first water cooled air conditioner coupled to the cold storage tank circuit.

5. The machine room cooling system of claim 4, further comprising a second water-cooled air conditioner disposed between the cooling pump and the chiller.

6. The machine room refrigeration system of claim 1, wherein the number of said cold storage tanks is plural, and a plurality of said cold storage tanks are arranged in parallel.

7. The machine room refrigeration system of claim 6, wherein the volumes of the plurality of cold storage tanks are different.

8. The machine room cooling system of claim 6, wherein the number of cold storage tanks is four.

9. The machine room cooling system according to claim 5, wherein the machine room cooling system is installed in a machine room, an office area is provided in the machine room, and an air outlet of the first water-cooled air conditioner and/or the second water-cooled air conditioner is provided in the office area.

10. The machine room cooling system according to claim 5, wherein the machine room cooling system is installed in a machine room, an equipment area is provided in the machine room, and an air outlet of the first water-cooled air conditioner and/or the second water-cooled air conditioner is provided in the equipment area.