WO2017211213A1

WO2017211213A1 - Air source cooling system of idc computer room

Info

Publication number: WO2017211213A1
Application number: PCT/CN2017/086532
Authority: WO
Inventors: 熊汉兵; 熊晨; 余卉
Original assignee: 武汉腾云数冷科技有限公司
Priority date: 2016-06-06
Filing date: 2017-05-31
Publication date: 2017-12-14
Also published as: CN205980095U

Abstract

Disclosed is an air source cooling system of an IDC computer room, the air source cooling system comprising: a terminal air conditioning device (1), a water chilling unit (2), a chilled water storage tank (4), a closed cooling tower (3) and a control system (8), of a data centre computer room, wherein an inlet and an outlet of the closed cooling tower (3) are connected with an inlet and an outlet of the chilled water storage tank (4). The chilled water storage tank (4) is used to solve the problem of an emergency cooling source of a data centre; and the chilled water storage tank (4) and the closed cooling tower (3) supply cooling in a combined manner by means of mixing water, solving the problem that some natural cooling sources cannot be used effectively when the closed cooling tower (3) uses the natural cooling source of an air source.

Description

IDC room air source cooling system

Technical field

[0001] The present invention relates to a cooling system, and more particularly to an energy efficient and environmentally friendly IDC room air source cooling system.

Background technique

[0002] The data center's requirements for the cooling system are 24 hours of uninterrupted cooling throughout the year. To ensure the safety of the cooling of the data center room, the cold machine is configured according to N+X (X=1~N) and an emergency cold source is set. At present, the cooling system of the data center computer room mainly adopts the cold machine + cooling tower. When the cooling water temperature reaches direct cooling, the natural cooling method is adopted (this is not the electric refrigerator), and combined with the bifurcation price policy, combined with the cold storage technology. use.

[0003] A new three-cold-source cooling system based on a combination of a chiller, a cold storage tank and a closed cooling tower (announcement number CN203980527U) reflects the current development level of the IDC room cooling system. However, it is found through analysis that the system still has many defects, mainly in the following: The air source as a natural cold source is too short, and it is effectively used only when it fully meets the cooling requirements of the equipment room, but partially meets the room supply. This part of the cold source is not effectively utilized. In the meantime, the natural cold source of this part of the air, after statistics, in most parts of the country, there are about 60 days of daytime. In addition, the system uses a cooling water primary pump and a cooling water secondary pump to operate in series. In most of the day, there are many pumps running, and the pump consumes a lot of energy. The cold storage tank is bulky, resulting in high costs.

technical problem

[0004] The object of the present invention is to overcome the deficiencies of the prior art and provide an IDC room air source cooling system that is environmentally friendly, energy efficient, reduces operating costs, and can fully utilize air natural cooling sources.

Problem solution

Technical solution

[0005] An IDC room air source cooling system of the present invention includes a terminal air conditioner of a data center room, a chiller 2, a cold water tank 4, a closed cooling tower 3, and a control system 8, and an evaporator side of the chiller 2 The inlet and outlet are connected to the inlet and outlet of the terminal air conditioner 1, the inlet and outlet of the condenser side of the chiller 2 are connected to the inlet and outlet of the closed cooling tower 3; the inlet and outlet of the closed cooling tower 3 are connected to the inlet and outlet of the air conditioner 1 of the terminal; the chiller 2 Evaporation The inlet and outlet of the unit side are connected to the inlet and outlet of the cold storage water tank 4; the inlet and outlet of the closed cooling tower 3 are connected to the inlet and outlet of the cold storage water tank 4.

[0006] The water outlet of the terminal air conditioner 1 is connected to the water inlet of the fluid cooler 3 and the water inlet of the cold water tank 4, and the water outlet of the fluid cooler 3 is mixed with the water outlet of the cold water tank 4 and then connected to the end. The water inlet of the air conditioner 1 and the water inlet of the cold water tank 4.

[0007] The evaporator side water inlet or the water outlet of the chiller 2 is provided with a cooling water circulating water pump 5.

[0008] A cooling tower circulating water pump 6 is provided at the water inlet or the water outlet of the fluid cooler 3 .

[0009] The water outlet of the cold water tank 4 is provided with a mixed water pump 7 and a mixed water pump countercurrent to the bypass pipe, and the water outlet pipe and the water inlet pipe of the cold water storage tank 4 are provided with a bypass pipe.

[0010] The control system 8 is used to control the start and stop of the cooling water circulating water pump 5, the cooling tower circulating water pump 6 and the mixed water pump 7, and the shut-off of the valve groups and the mixing ratio of the water mixing system.

Advantageous effects of the invention

Beneficial effect

[0011] Compared with the prior art, the invention has the beneficial effects of: solving the problem of emergency cold source in the data center by using the cold storage water tank; co-cooling the cold storage water tank and the closed cooling tower, and solving the utilization of the air source of the closed cooling tower Natural cold source 吋 natural cold source temperature fluctuations, the natural cooling of the air source is greatly extended; solves the problem of excessive storage tank volume, saving about half of the volume; using the cooling system equipment redundancy, through the valley electricity The cold storage peak section of the cold storage section is cooled, reducing the running cost; solving the problem that the cooling water first and the secondary water pump consume large amounts of electricity in series operation in most of the day.

Brief description of the drawing

DRAWINGS

1 is a schematic view of the overall structure of the present invention.

[0013] In the figure, 1 is the terminal air conditioning equipment; 2 is the chiller; 3 is the closed cooling tower; 4 is the cold storage water tank; 5 is the cooling water circulating water pump; 6 is the cooling tower circulating water pump; 7 is the mixed water pump; Control System.

Embodiments of the invention

[0014] The present invention will be further described below by way of examples and with reference to the accompanying drawings. [0015] As shown in FIG. 1, an IDC room air source cooling system of the present invention includes a data center end air conditioner 1, a chiller 2, a closed cooling tower 3, a cold storage tank 4, a cooling water circulating water pump 5, and cooling. Tower circulating water pump 6, mixed water pump 7, control system 8. The terminal air conditioning device 1, the closed cooling tower 3, and the cold storage water tank 4 respectively have a water inlet and a water outlet, and the water inlet and the water outlet are respectively provided with a valve group. The chiller 2 is divided into an evaporator side water inlet and a water outlet, and a condenser side water inlet and a water outlet, and the water inlet and the water outlet are respectively provided with a valve group. The cooling system is connected separately: (1) The inlet and outlet of the evaporator side of the chiller is connected to the inlet and outlet of the air conditioner, and the inlet and outlet of the condenser side of the chiller are connected to the inlet of the closed cooling tower; (2) The special air conditioning equipment for the inlet and outlet of the cold storage tank Import and export; (3) The inlet and outlet of the closed cooling tower are connected to the end of the air conditioning equipment. Cooling system connection: (1) The inlet and outlet of the evaporator side of the chiller is connected to the inlet of the cold storage tank, and the inlet and outlet of the condenser side of the chiller are connected to the inlet of the closed cooling tower. (2) The inlet and outlet of the closed cooling tower are connected to the inlet of the cold storage tank. The closed cooling tower is connected with the cold storage tank combined cooling system: the outlet of the terminal air conditioning equipment is connected to the water inlet of the closed cooling tower and the water inlet of the cold storage water tank, and the outlet of the closed cooling tower is mixed with the outlet of the cold storage water tank and connected to the terminal air conditioner. The inlet of the equipment and the inlet of the cold storage tank. A cooling water circulating water pump 5 is provided at the water inlet or the water outlet of the chiller, a cooling tower circulating water pump 6 is provided at the water inlet or the outlet of the closed cooling tower, and a mixed water pump 7 is provided at the water outlet of the cold storage tank, and the water inlet and the outlet of the above equipment are provided. There are valve groups, the control system controls the opening and closing of each valve group and each pump, and realizes different operation strategies at different stages.

[0016] In this system, there are seven working modes:

[0017] First, the cold machine cooling: chiller, closed cooling tower, cooling water circulating water pump, cooling tower circulating water pump operation, VI, V2, V3, V4, V5, V6, V7, V8 valve group Qi Qi, chiller Provides a source of cooling for data center end air conditioning equipment.

[0018] Second, cold storage cold storage: chiller, closed cooling tower, cold storage water tank, cooling water circulating water pump, cooling tower circulating water pump operation, V3, V4, V5, V6, V7, V8, V9, V17 valve group The chiller uses the valley electric storage section to store cold, and the peak cooling section provides cooling source for the dedicated air conditioning equipment at the end of the data center.

[0019] Third, the cooling tower cooling: closed cooling tower, cold storage tank, cooling tower circulating water pump operation, V7, V8, V 11, V12, V9, V17 valve group Qi Kai, using outdoor natural cold source cold storage, daytime release Cold provides a separate source of cooling for the data center end air conditioning unit or in conjunction with a fluid cooler to provide a cooling source for data center end air conditioning equipment.

[0020] Fourth, the cooling tower cooling: closed cooling tower, cooling tower circulating water pump operation, V13, V14 valve group Provides a cold source for data center end air conditioning equipment directly from outdoor natural cooling sources.

[0021] V. Cold storage tank cooling: cold storage water tank, cooling water circulating water pump, mixed water pump operation, VI, V2, V9,

The V10 and V16 valve groups are used to provide a cold source for data center end air conditioning equipment directly from the cold storage tank.

[0022] Sixth, cold machine + cold storage tank cooling: chiller, closed cooling tower, cold storage water tank, cooling water circulating water pump

, cooling tower circulating water pump operation, mixed water pump operation, VI, V2, V3, V4, V5, V6, V7, V8,

The V15 and V10 valve groups are combined, and the chillers and cold storage tanks provide a cold source for data center end air conditioning equipment.

[0023] VII, cooling tower + cold storage tank cooling: closed cooling tower, cold storage tank, cooling tower circulating water pump, mixed water pump operation, V15, V10, V13, V14, V2 幵, in the closed cooling tower use outdoor The natural cold source can not directly provide the cold source for the data center end air conditioning equipment, and the cold storage tank is used as the supplementary cold source.

[0024] The system increases the cold storage water tank, the closed cooling tower, the mixed water pump and the control system on the basis of the cold cooling of the IDC engine room. In the summer and in the transitional season, cold-cooling is used, and the cold storage tanks are used for cold storage at night, and the peak cooling period reduces the operating cost. In the winter and transition season, when the closed cooling tower uses the outdoor natural cold source to meet the water supply temperature requirements of the terminal air conditioning equipment, the closed cooling tower is used for direct cooling, and the outdoor cooling source in the closed cooling tower cannot meet the terminal air conditioning. When the water supply temperature of the equipment can be appropriately lowered, the cold water tank can be used as a supplementary cold source, and the mixed water reduces the cooling water to the water supply temperature required by the terminal air conditioner. The volume of the cold storage tank is greater than that required by the data center for the emergency cold source. In any case, the cold storage tank is required to have no less than the emergency cooling source (usually 15-20min).

The above is only the specific embodiments of the present invention, and variations that can be easily conceived by those skilled in the art within the scope of the present invention are covered by the scope of the invention.

Claims

Claim

An IDC room air source cooling system is characterized by: a terminal air conditioning device (1) including a data center room, a chiller (2), a cold storage water tank (4), a closed cooling tower (3), and a control system (8) ), the evaporator side inlet and outlet of the chiller (2) is connected to the inlet and outlet of the terminal air conditioning unit (1), and the condenser side inlet and outlet of the chiller unit (2) is connected to the inlet and outlet of the closed cooling tower (3); The inlet and outlet of the tower (3) is connected to the inlet and outlet of the terminal air conditioner (1); the inlet and outlet of the evaporator side of the chiller (2) is connected to the inlet and outlet of the cold storage tank (4); the inlet and outlet of the closed cooling tower (3) Connect the inlet and outlet of the cold storage tank (4).

A cooling system according to claim 1, wherein: the water outlet of the terminal air conditioner (1) is connected to the water inlet of the fluid cooler (3) and the water inlet of the cold water tank (4), the closed cooling tower The water outlet of (3) is mixed with the water outlet of the cold water tank (4) and connected to the water inlet of the terminal air conditioner (1) and the water inlet of the cold water tank (4).

The cooling system according to claim 1, characterized in that: the evaporator side water inlet or the water outlet of the chiller (2) is provided with a cooling water circulating water pump (5).

The cooling system according to claim 1, characterized in that: the water inlet or the water outlet of the fluid cooler (3) is provided with a cooling tower circulating water pump (6).

The cooling system according to claim 1, characterized in that: the water outlet of the cold storage water tank (4) is provided with a mixed water pump (7) and the mixed water pump flows countercurrently to the bypass pipe, and the water outlet pipe of the cold storage water tank (4) and the inlet pipe The water pipe is provided with a bypass pipe.

The cooling system according to claim 1, characterized in that: said control system (8) is used for controlling the start and stop of the cooling water circulating water pump (5), the cooling tower circulating water pump (6) and the mixed water pump (7), and the valves The ratio of mixing water in the closed and mixed water system of the group is adjusted.