CN205102309U - Data computer lab cooling system - Google Patents

Abstract

The utility model discloses a cooling system for a data machine room, which comprises a cold storage tank cooling system and an air-conditioning cold water circulation system; the cold storage tank cooling system includes a cold storage tank, a cooling pump and a heat exchanger, The exchangers are connected in sequence to form a cooling circuit, and the cooling pump is connected to the outlet of the cold storage tank; the air-conditioning cold water circulation system includes a heat exchanger, a refrigeration unit, a chilled water pump and terminal equipment, and the cooling system of the cold storage tank and the cold water circulation system of the air conditioner pass heat exchange The heat exchanger and the refrigeration unit are connected in parallel, the outlets of the heat exchanger and the refrigeration unit are connected with the chilled water pump and the terminal equipment in turn to form a cooling circuit, the heat exchanger is connected in series with the first valve, and the refrigeration unit is connected in series with the second valve. In the utility model, when the refrigerating unit loses power and stops running, the cooling system of the cold storage tank can be activated to provide normal cooling without additional water storage tanks, which reduces cost and space, and saves the operating cost of the cooling system in the data room.

Description

Data room cooling system

technical field

The utility model relates to the technical field of refrigeration and air conditioning, in particular to a cooling system for a data machine room.

Background technique

The data room is equipped with computer systems, servers, communication systems and other data processing, storage, and network communication equipment that operate 24 hours a year. The above equipment generates a lot of heat, causing the temperature in the data room to rise. In order to ensure the normal operation of the equipment , requires uninterrupted cooling throughout the year, and requires the cooling system to have extremely high reliability and save energy consumption.

In A and B-level data computer rooms, cold water cooling systems are usually used for cooling. At the same time, in order to ensure the safety and reliability of power consumption in the computer rooms, a diesel generator power supply system is installed as a backup for municipal power supply. When the municipal power supply fails, the refrigeration unit connected to the municipal power supply loses power and stops cooling. At this time, it is necessary to start the diesel generator to supply power to the refrigeration unit, and the process of starting and normally cooling the refrigeration unit generally takes 10 to 15 minutes. time. In order to prevent the cabinets in the data center from going down due to high indoor temperature during this period, a water storage tank is usually installed in the cold water cooling system. Since the cold storage capacity of the water storage tank needs to meet the cooling capacity required by the computer room for 15 minutes, Therefore, the volume is large and takes up space in the machine room.

In large-scale buildings integrating data computer rooms and offices, such as banks, securities exchanges, futures transactions, network computer rooms, and computer centers, in order to save operating costs by using low-peak electricity at night, non-data computer room areas (i.e. office areas) adopt cold storage air conditioning systems , while the data room mostly adopts a cold water cooling system with an emergency water storage tank, the two cooling systems are independent of each other, and in non-cooling seasons such as transitional seasons and winter, the cold storage tank in the cold storage air conditioning system is usually in an idle state, Caused a waste of resources, failed to meet the needs of practical applications.

Utility model content

The utility model provides a cooling system for a data machine room to solve the above problems.

In order to solve the above technical problems, the technical solution of the utility model is: a cooling system for a data room, including a cold storage tank cooling system and an air-conditioning cold water circulation system;

The cooling system for the cold storage tank includes a cold storage tank, a cooling pump and a heat exchanger. The cold storage tank, the cooling pump and the heat exchanger are connected in sequence to form a cooling loop, and the cooling pump is connected to the outlet of the cold storage tank. connect;

The cold water circulation system of the air conditioner includes a heat exchanger, a refrigeration unit, a chilled water pump and terminal equipment. The cooling system of the cold storage tank is connected to the cold water circulation system of the air conditioner through a heat exchanger, and the heat exchanger and the refrigeration unit are connected in parallel. The outlets of the heat exchanger and the refrigerating unit are sequentially connected to the chilled water pump and the terminal equipment to form a cooling circuit, the heat exchanger is also connected in series with the first valve, and the refrigerating unit is also connected in series with the second valve.

Further, the refrigerating unit includes a refrigerating compressor, a condenser, a throttling device and an evaporator, and the refrigerating compressor, condenser, throttling device and evaporator are connected in sequence to form a circuit.

Further, the chilled water pump is provided with one, which is arranged on the main pipe after the parallel connection of the heat exchanger and the refrigeration unit.

Further, there are two chilled water pumps, which are respectively connected in series with the heat exchanger and the refrigerating unit.

Further, the cold storage tank is a water cold storage tank or an inner ice-melting cold storage tank or an outer ice-melting cold storage tank.

Further, the refrigeration unit is a water-cooled chiller or an air-cooled chiller.

Further, the cooling pump or the chilled water pump is a circulation pump, which is controlled by frequency conversion.

The cooling method of the cooling system of the data machine room of the utility model specifically includes: opening the refrigeration unit, the second valve and the chilled water pump, closing the first valve and the cooling pump, and running the refrigeration unit to the end The equipment is cooled.

The cooling method of the data room cooling system of the utility model specifically includes: opening the first valve, the terminal equipment, the chilled water pump and the cooling pump, and closing the second valve and the refrigeration unit, Run cold storage tanks and heat exchangers to provide cooling for terminal equipment.

The cooling method for the cooling system of the data computer room of the utility model specifically includes: opening the refrigeration unit, the first valve, the second valve, the cooling pump and the frozen water pump, operating the cold storage tank, heating The exchanger and the refrigerating unit provide joint cooling.

The cooling system of the data computer room provided by the utility model is provided with a cold storage tank cooling system and an air-conditioning cold water circulation system, and the two are connected through a heat exchanger, so that the cold storage tank in the cold storage tank cooling system doubles as the cooling system of the data computer room. The emergency water cold storage tank, when the refrigeration unit loses power and stops running, start the cold storage tank to release the cold system for normal cooling, which reduces the installation cost and installation space of the emergency water cold storage tank, and at the same time, in winter and transitional seasons, the cold storage system At night, the electricity with low electricity price is used for cold storage, and the cooling is released during the peak electricity price period during the day to provide cooling for the data room, saving the operating cost of the cooling system for the data room.

Description of drawings

Fig. 1 is a schematic structural view of Embodiment 1 of the cooling system for a data center of the present invention;

Fig. 2 is a structural schematic diagram of Embodiment 2 of the cooling system for a data center of the present invention.

As shown in the figure: 100, cold storage tank cooling system; 101, cooling pipeline; 102, cold storage tank; P1, cooling pump; 103, heat exchanger; 200, air conditioning cold water circulation system; 201, cold water pipeline; 202, refrigeration unit; 202-1, refrigeration compressor; 202-2, condenser; 202-3, throttling device; 202-4, evaporator; P2, P21, P22, chilled water pump; 203, terminal equipment; V1 , the first valve; V2, the second valve.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail.

Example 1

As shown in FIG. 1 , the utility model provides a cooling system for a data center, including a cold storage tank cooling system 100 and an air-conditioning cold water circulation system 200 . It should be noted that, for a building that integrates a data computer room and a non-data computer room, the cold storage tank cooling system 100 is installed in the non-data computer room's freezing station, and the air-conditioning cold water circulation system 200 is installed in the data computer room's freezing station.

The cold storage tank cooling system 100 includes a cold storage tank 102, a cooling pump P1 and a heat exchanger 103, and the cold storage tank 102, the cooling pump P1 and the heat exchanger 103 are sequentially connected through a cooling pipeline 101 to form a cooling circuit , the cooling pump P1 is connected to the outlet of the cold storage tank 102; specifically, the working process of the cold storage tank cooling system 100 is as follows: the cold water in the lower part of the cold storage tank 102 is transported to the heat exchanger 103 by the freezing pump P1. The warming water in the air-conditioning cold water circulation system 200 performs heat exchange, and returns to the upper part of the cold storage tank 102 after absorbing heat and heating up to complete the cooling process. Preferably, the cold storage tank 102 is a water cold storage tank or an inner ice-melting cold storage tank or an outer ice-melting cold storage tank, and the cooling pump P1 is a circulation pump, and in order to save energy consumption, it is controlled by frequency conversion.

The air-conditioning cold water circulation system 200 includes a heat exchanger 103, a refrigeration unit 202, a chilled water pump P2, and a terminal device 203. The cold storage tank cooling system 100 is connected to the air-conditioning cold water circulation system 200 through the heat exchanger 103. The heat exchange The heat exchanger 103 and the refrigeration unit 202 are connected in parallel, and the outlets of the heat exchanger 103 and the refrigeration unit 202 are sequentially connected with the chilled water pump P2 and the terminal equipment 203 to form a cooling circuit. The heat exchanger 103 is connected in series with the first valve V1, and the refrigeration Unit 202 is connected in series with the second valve V2. As shown in FIG. 1 , the chilled water pump P2 is provided with one, which is arranged on the main pipe after the heat exchanger 103 and the refrigerating unit 202 are connected in parallel. Specifically, the heat exchanger 103, the refrigeration unit 202, the chilled water pump P2, and the terminal equipment 203 are connected through the cold water pipeline 201, that is, the cold water pipeline 201 connects the outlet of the heat exchanger 103 and the outlet of the refrigeration unit 202, and the terminal equipment 203 inlet is connected, and the outlet of the terminal equipment 203, the inlet of the heat exchanger 103 and the inlet of the refrigeration unit 202 are connected. The working process of the air-conditioning cold water circulation system 200 is as follows: the cold water flowing out of the refrigeration unit 202 and the heat exchanger 103 is transported by the chilled water pump P2 to the terminal equipment 203 for cooling, and then the terminal equipment 203 outputs heated water back to the refrigeration unit 202 and the heat exchanger 103 for cooling to form two independent cooling circuits, and the two cooling circuits can supply cooling independently or jointly. Preferably, the chilled water pump P2 is a circulation pump, and in order to save energy consumption, frequency conversion is used for control.

Please continue to refer to FIG. 1, the refrigerating unit 202 is a water-cooled chiller or an air-cooled chiller, and the refrigerating unit 202 includes a refrigerating compressor 202-1, a condenser 202-2, a throttling device 202-3 and an evaporator 202 -4, the refrigeration compressor 202-1, the condenser 202-2, the throttling device 202-3 and the evaporator 202-4 are sequentially connected to form a circuit, and the evaporator 202-4 is connected in series with the second valve V2 Specifically, the evaporator 202-4 is connected in parallel with the heat exchanger 103, and the cold water prepared by the refrigeration compressor 202-1, the condenser 202-2, the throttling device 202-3 and the evaporator 202-4 passes through the evaporator 202-4 The outlet of the evaporator 202-4 flows out to supply cooling to the terminal equipment 203, and then the heated water flowing out of the terminal equipment 203 enters the refrigeration unit 202 from the inlet of the evaporator 202-4 for cooling, forming a cooling circuit.

The utility model also provides the above-mentioned cooling method of the cooling system of the data computer room, including three types, specifically: (1) The refrigeration unit 202 provides cooling alone: turn on the refrigeration unit 202, the terminal equipment 203, the second valve V2 and the freezing The water pump P2 closes the first valve V1 and the cooling pump P1, and operates the refrigeration unit 202 to supply cooling to the terminal equipment 203. Specifically, the refrigeration compressor 202-1, the condenser 202-2, and the throttling device 202 in the refrigeration unit 202 -3 and the cold water prepared by the evaporator 202-4 flows out from the outlet of the evaporator 202-4, and is pumped by the chilled water pump P2 to the terminal equipment 203 for cooling, and then the heated water flowing out of the terminal equipment 203 flows from the inlet of the evaporator 202-4 Enter the refrigeration unit 202 for cooling, forming an air-conditioning and cooling cycle.

(2) The cold storage tank 102 is cooled and the heat exchanger 103 is used for cooling, the terminal equipment 203, the chilled water pump P2, the first valve V1, and the cold pump P1 are turned on, the second valve V2 and the refrigeration unit 202 are closed, and the cold storage tank 102 is operated and the heat exchanger 103 to cool the terminal equipment 203 . Specifically, the cooling pump P1 sends the cold water in the cold storage tank 102 to the heat exchanger 103 to exchange heat with the heated water output by the terminal equipment 203, and the heated water after absorbing heat and heating returns to the cold storage tank 102 to cool down, forming a cooling system. Cold cycle, at the same time, the heat exchanger 103 outputs cooled cold water, which is sent to the terminal equipment 203 by the chilled water pump P23 for cooling, and then the heated water flowing out of the terminal equipment 203 enters the heat exchanger 103 for cooling, forming an air conditioner for cooling cycle.

(3) Cold storage tank 102 releases cold and heat exchanger 103 for cooling and refrigeration unit 202 for combined cooling: open the first valve V1, the second valve V2, refrigeration unit 202, terminal equipment 203, cooling pump P1 and chilled water pump P2 , operate the cold storage tank 102, the heat exchanger 103 and the refrigerating unit 202 for joint cooling. The cooling pump P1 sends the cold water in the cold storage tank 102 to the heat exchanger 103 to exchange heat with the warming water output by the terminal equipment 203, and the warming water after absorbing heat and heating returns to the cold storage tank 102 to cool down, forming a cooling cycle. At the same time, the chilled water pump P2 sends the cold water flowing out of the refrigeration unit 202 and the heat exchanger 103 to the terminal equipment 203 for cooling, and then the terminal equipment 203 outputs heated water back to the refrigeration unit 202 and the heat exchanger 103 for cooling. The cold circuit performs combined cooling to form an air-conditioning cooling cycle.

Example 2

The difference from Embodiment 1 is that there are two chilled water pumps in Embodiment 2, that is, chilled water pumps P21 and P22, which are connected in series with the heat exchanger 103 and the refrigerating unit 202 respectively, that is, the chilled water pump P21 is connected with the heat exchanger The outlet of the device 103 is connected, and the chilled water pump P22 is connected to the outlet of the refrigeration unit 202. At this time, in order to save parts, the first gate valve V1 and the second gate valve V2 can be omitted, as shown in Figure 2, by turning on or off the chilled water pump P21 to control The cooling state of the heat exchanger 103 is controlled by turning on or off the chilled water pump P22 to control the cooling state of the refrigeration unit 202 . When one of the chilled water pumps P21 or P22 fails or is overhauled, the system can still be guaranteed to operate normally, further improving the reliability of the system. Of course, multiple chilled water pumps P21 or P22 can be connected in parallel as backup.

In summary, the data room cooling system provided by the utility model, by setting the cold storage tank cooling system 100 and the air conditioner cold water circulation system 200, and the two are connected through the heat exchanger 103, so that the cold storage tank cooling system 100 The cold storage tank 102 is also used as an emergency water cold storage tank in the cooling system of the data center. When the refrigeration unit loses power and stops running, the cold storage tank cooling system 100 is activated to perform normal cooling, which reduces the installation cost and cost of the emergency water cold storage tank. In the installation space, at the same time in winter and transitional seasons, the cold storage system uses the low electricity price electricity to store cold at night, and cools down during the daytime peak electricity price period to provide cooling for the data room, saving the operating cost of the data room cooling system.

Although the description has described the embodiments of the present utility model, these embodiments are only used as hints and should not limit the scope of protection of the present utility model. Various omissions, substitutions and changes within the scope not departing from the gist of the utility model shall be included in the protection scope of the utility model.

Claims (7)

1. a data center module cold supply system, is characterized in that, comprises cold-storage groove and lets cool system and the air conditioner cold water circulatory system;

Described cold-storage groove lets cool system and comprises cold-storage groove, lets cool pump and heat exchanger, described cold-storage groove, lets cool pump and heat exchanger and is in turn connected to form and lets cool loop, described in let cool pump and be connected with the outlet of described cold-storage groove;

The described air conditioner cold water circulatory system comprises heat exchanger, refrigeration unit, chilled water pump and end-equipment, described cold-storage groove is let cool system and is connected by heat exchanger with the air conditioner cold water circulatory system, described heat exchanger and refrigeration unit parallel connection, the outlet of described heat exchanger and refrigeration unit and chilled water pump and end-equipment are in turn connected to form for cold loop, described heat exchanger in series first valve, described refrigeration unit is connected the second valve.

2. data center module cold supply system according to claim 1, it is characterized in that, described refrigeration unit comprises refrigeration compressor, condenser, throttling arrangement and evaporimeter, and described refrigeration compressor, condenser, throttling arrangement and evaporimeter connect and compose loop successively.

3. data center module cold supply system according to claim 1, is characterized in that, described chilled water pump is provided with one, is located on the house steward after described heat exchanger and refrigeration unit parallel connection.

4. data center module cold supply system according to claim 1, is characterized in that, described chilled water pump is provided with two, connects respectively with described heat exchanger and refrigeration unit.

5. data center module cold supply system according to claim 1, is characterized in that, described cold-storage groove is water cold storage groove or Internal melt cold-storage groove or extra-melt ice thermal storage groove.

6. data center module cold supply system according to claim 1, is characterized in that, described refrigeration unit is water-cooled cold water unit or air-cooled liquid chillers.

7. data center module cold supply system according to claim 1, is characterized in that, described in let cool pump or chilled water pump is circulating pump, and adopt frequency conversion to control.