CN112236022B - Energy-saving heat dissipation system for data center and implementation method - Google Patents

Abstract

The invention discloses an energy-saving and heat-dissipating system for a data center and an implementation method thereof, including a cabinet, in which a cooling plate and a plurality of servers are arranged, and a first cooling source group and a second cooling source group are connected to the outside of the cabinet; the first The heat dissipation cold source group includes a closed cooling tower, an intermediate heat exchanger and connecting pipelines; the closed cooling tower is connected to the intermediate heat exchanger through the connecting pipeline and then connected to the cabinet; the connecting pipeline between the intermediate heat exchanger and the server in the cabinet and The cooling plate is connected and performs indirect heat exchange; the second cooling source group includes a multi-cooling source unit, the first evaporator and a water storage tank; the multi-cooling source unit connects the first evaporator and the water tank through a connecting pipeline and then connects to the cabinet. The multi-cooling source unit performs refrigeration, and the temperature of the cooling plate in the cabinet is reduced through the heat exchange of the first evaporator; the present invention can achieve energy saving and consumption reduction in the data center by using double cooling source liquid cooling, intermediate cooling technology and natural cooling source technology , to improve system security.

Description

An energy-saving cooling system for a data center and its implementation method

technical field

The invention relates to an energy-saving heat dissipation system for a data center and a realization method thereof, belonging to the technical field of heat dissipation of the data center.

Background technique

With the development of information technology, the heat dissipation of servers and the heat dissipation density of computer rooms increase, and some of the heat dissipation methods of precision air conditioners relying on electricity will be gradually replaced by new cooling methods. With the rapid development of mobile data, cloud computing and big data services, the scale of data center construction is increasing, the density of single cabinets is increasing, and the heat generated by server equipment chips is also increasing. The traditional air-cooling mode not only consumes a lot of power Moreover, it is increasingly unable to meet the heat dissipation requirements of IT equipment, and the demand for energy saving in data centers has gradually become prominent.

Contents of the invention

In view of the above-mentioned technical problems, the object of the present invention is to propose an energy-saving heat dissipation system for data centers and its implementation method. For high-density new data centers and supercomputing centers, multi-cold source cold plate servers are used to achieve high-density cooling. Arrangement, safe and reliable, and maximize the use of natural cold sources, green and energy-saving.

The technical solution of the present invention is realized as follows: an energy-saving heat dissipation system for a data center, including a cabinet, a cooling plate and a plurality of servers are arranged in the cabinet, and the cabinet is connected to the first heat dissipation cooling source group and the second heat dissipation cooling source group. source group;

The first heat dissipation cold source group includes a closed cooling tower, an intermediate heat exchanger and a connecting pipeline; the closed cooling tower connects the intermediate heat exchanger through the connecting pipeline and then connects to the cabinet; the intermediate heat exchanger and The connecting pipeline of the server in the cabinet is connected to the cooling plate, and the intermediate heat exchanger performs indirect heat exchange with the connecting pipeline and the cooling plate;

The second cooling source group includes a multi-cooling source unit, a first evaporator and a water storage tank;

The multi-cooling source unit is connected to the cabinet after connecting the first evaporator and the water tank through the connecting pipeline, the multi-cooling source unit performs refrigeration, and the temperature of the cooling plate in the cabinet is reduced by heat exchange through the first evaporator; the water storage tank stores cold And provide a cold source for the server to dissipate heat and cool down.

Preferably, a medium pump is provided between the intermediate heat exchanger and each server, and each server dissipates heat through the medium pump.

Preferably, the second cooling source group is also connected with a supplementary cooling system; the supplementary cooling system includes a chilled water air conditioner, a second evaporator and a connecting pipeline; the chilled water air conditioner is connected to the second evaporator through a connecting pipeline The chilled water air conditioner is connected to the first evaporator and the multi-cooling source unit through the second evaporator; the chilled water air conditioner supplements cooling capacity for the first evaporator and the multi-cooling source unit.

Preferably, the multi-cooling source unit includes a compressor, an air-cooled condenser, a plate condenser and a fan; the air-cooled condenser introduces air to cool down the gaseous refrigerant inside it through the action of the fan; the plate condenser passes The connecting pipeline is connected with the closed cooling tower, and the temperature is lowered by the closed cooling tower.

Preferably, a temperature control device is also provided in the cabinet; each of the connecting pipelines for water inlet and return water of the server is provided with a temperature collection device; each of the temperature collection devices is connected to a temperature A control device; the temperature acquisition device monitors the inlet water temperature and return water temperature of the server, and then sends them to the temperature control device; the temperature control device controls the inlet water temperature and return water temperature of the first cooling source group entering the server.

Preferably, the temperature control device controls the evaporating temperature of the first evaporator and the temperature of the inlet water and return water of the first evaporator into the server.

A method for implementing an energy-saving heat dissipation system for a data center, comprising the following steps: when the outdoor temperature is >35°C, the first cooling source group for heat dissipation is activated, and the cold source needs to be provided for the internal cooling plate of the server and the plate condenser in the multi-cooling source unit Condensation cooling, at this time, the supplementary cooling system is turned on, and the chilled water air conditioner supplements the cooling capacity of the first evaporator and the multi-cooling source unit through the second evaporator;

When the outdoor temperature is lower than 35°C, the first heat dissipation cold source group is activated to provide cold source for the internal cooling plate of the server, and the server cooling plate exchanges heat through the intermediate heat exchanger to meet the cooling demand of the cooling plate. The cold source unit exchanges heat through an air-cooled condenser.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:

An energy-saving heat dissipation system for a data center of the present invention and its implementation method can achieve the purpose of saving energy and reducing consumption and improving system safety in the data center by using double cold source liquid cooling, intermediate cooling technology and natural cold source technology.

Description of drawings

Below in conjunction with accompanying drawing, technical solution of the present invention will be further described:

Accompanying drawing 1 is the structure diagram of a kind of data center energy-saving cooling system of the present invention;

Accompanying drawing 2 is a schematic diagram of a multi-cooler unit of an energy-saving heat dissipation system for a data center of the present invention;

Among them: 1. Cabinet; 2. Server; 3. The first cooling source group; 4. The second cooling source group; 5. Closed cooling tower; 6. Intermediate heat exchanger; 7. Connecting pipeline; 8. Cooling plate; 9. Medium pump; 10. Multi-cooler unit; 11. First evaporator; 12. Water storage tank; 13. Supplementary cooling system; 14. Chilled water air conditioner; 15. Second evaporator; 16. Compressor ; 17, air-cooled condenser; 18, plate condenser; 19, fan.

detailed description

The present invention is described below in conjunction with accompanying drawing.

Embodiment one

As shown in the accompanying drawing 1, it is an energy-saving heat dissipation system for a data center according to the present invention, which includes a cabinet 1, a cooling plate 8 and a plurality of servers 2 are arranged in the cabinet 1, and the cabinet 1 is connected to a first cooling system. The cold source group 3 and the second cooling source group 4;

The first cooling source group 3 includes a closed cooling tower 5, an intermediate heat exchanger 6 and a connecting pipeline 7;

The closed cooling tower 5 is connected to the cabinet 1 after connecting the intermediate heat exchanger 6 through the connecting pipeline 7; the intermediate heat exchanger 6 is connected to the connecting pipeline 7 and the cooling plate 8 of the server 2 in the cabinet 1, and the middle The heat exchanger 6 performs indirect heat exchange with the connecting pipeline 7 and the cooling plate 8; a medium pump 9 is provided between the intermediate heat exchanger 6 and each server 2, and each server 2 dissipates heat through the medium pump 9;

The second cooling source group 4 includes a multi-cooling source unit 10, a first evaporator 11 and a water storage tank 12;

The multi-cooling source unit 10 is connected to the cabinet through the connecting pipeline 7 to the first evaporator 11 and the water storage tank 12, the multi-cooling source unit 10 performs refrigeration, and the cooling plate 8 inside the cabinet 1 is lowered through the heat exchange of the first evaporator 11 temperature; the water storage tank 12 stores cold and provides a cold source for the server 2 to dissipate heat and cool down;

The second cooling source group 4 includes a multi-cooling source unit 10, a first evaporator 11, and a water storage tank 12; into the cabinet 1, the multi-cooling source unit 10 performs cooling, the temperature of the cooling plate 8 in the cabinet 1 is lowered through the heat exchange of the first evaporator 11, and the cooling is stored in the water storage tank 12 to provide the server 2 with a cooling source for heat dissipation and cooling; The second cooling source group 4 is also connected with a supplementary cooling system 13; the supplementary cooling system 13 includes a chilled water air conditioner 14, a second evaporator 15 and a connecting pipeline 7; the chilled water air conditioner 14 is connected through the connecting pipeline 7 The second evaporator 15 is connected to the first evaporator 11 and the multi-cooling source unit 10 respectively through the second evaporator 15, and supplements cooling capacity for the first evaporator 11 and the multi-cooling source unit 10; wherein the server CPU, memory The heat is cooled by the cooling plate 8 , and the heat of other servers 2 is cooled by the chilled water air conditioner 14 .

The multi-cooling source unit 10 includes a compressor 16, an air-cooled condenser 17, a plate condenser 18 and a fan 19; wherein the air-cooled condenser 17 cools the gaseous refrigerant in the condenser of the unit through the action of the fan 19 through the outdoor air, which is dry Wet cooling; the plate condenser 18 is connected to the closed cooling tower 5 through pipelines, and the plate condenser 18 is cooled through the closed cooling tower 5; the multi-cooler unit 10, when the outdoor temperature exceeds 35 ° C, air-cooled condensing When the condenser 17 cannot meet the refrigeration demand or the air-cooled condenser 17 is faulty and maintained, the side plate condenser 18 of the closed cooling tower 5 is used for heat exchange; when the outdoor temperature is lower than 35°C, the air-cooled condenser 17 meets the heat exchange demand , the air-cooled condenser 17 is used for heat exchange; the mutual backup heat exchange mode of the air-cooled condenser 17 and the plate condenser 18 is used to ensure the reliability of the heat exchange of the server 2 .

Embodiment two

An implementation method of an energy-saving heat dissipation system for a data center. The server is a server with dual cold sources. One of the cold sources comes from a closed cooling tower. The pumps enter each server for heat dissipation. The temperature of the water entering the server is 40°C, and the temperature of the return water is 50°C; The water tank stores cold and provides a secondary cold source for the server. The design evaporation temperature of the first evaporator is 20°C. The heat exchange of the evaporator reduces the circulating water temperature of the chilled water air conditioner and provides a cold source for the chilled water air conditioner. The first evaporator is designed to have an evaporation temperature of 15°C, corresponding to a chilled water air conditioner inlet water temperature of 15°C and a return water temperature of 20°C.

When the outdoor temperature is higher than 35°C, the closed cooling tower not only condenses and cools the multi-cooling unit through the connected plate condenser, but also needs to provide a cold source for the cold measuring plate on the server side. At this time, the cooling effect will be insufficient. When the multi-cooling source unit turns on the heat exchange of the air-cooled condenser and the heat exchange of the plate condenser at the same time, the cooling of the cooling plate at one end of the server will be carried out through the heat exchange between the intermediate heat exchanger and the first evaporator and the second evaporator Cooling capacity replenishment ensures the reliability of primary cooling; through the use of dual cold source liquid cooling, intermediate cooling technology and natural cold source technology, energy saving and consumption reduction can be achieved in the data center, and the purpose of improving system security can be achieved.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present invention, and its purpose is to allow those familiar with this technology to understand the content of the present invention and implement it, and cannot limit the protection scope of the present invention with this. Substantial equivalent changes or modifications shall fall within the protection scope of the present invention.

Claims (4)

1. An energy-saving heat dissipation system for a data center and its implementation method, the energy-saving heat dissipation system for the data center includes a cabinet, a cooling plate and a plurality of servers are arranged in the cabinet, and it is characterized in that: the cabinet is connected to a first heat dissipation cold source group and the second cooling source group; The first heat dissipation cold source group includes a closed cooling tower, an intermediate heat exchanger and a connecting pipeline; the closed cooling tower connects the intermediate heat exchanger through the connecting pipeline and then connects to the cabinet; the intermediate heat exchanger and The connecting pipeline of the server in the cabinet is connected to the cooling plate, and the intermediate heat exchanger performs indirect heat exchange with the connecting pipeline and the cooling plate; The second cooling source group includes a multi-cooling source unit, a first evaporator and a water storage tank; The multi-cooling source unit is connected to the cabinet after connecting the first evaporator and the water tank through the connecting pipeline, the multi-cooling source unit performs refrigeration, and the temperature of the cooling plate in the cabinet is reduced by heat exchange through the first evaporator; the water storage tank stores cold And provide a cold source for the server to cool down; The second cooling source group is also connected with a supplementary cooling system; the supplementary cooling system includes a chilled water air conditioner, a second evaporator and a connecting pipeline; the chilled water air conditioner is connected to the second evaporator through a connecting pipeline, and then The second evaporator is respectively connected to the first evaporator and the multi-cooling source unit; the chilled water air conditioner supplements cooling capacity for the first evaporator and the multi-cooling source unit; The multi-cooling source unit includes a compressor, an air-cooled condenser, a plate condenser and a fan; the air-cooled condenser introduces air into the internal gaseous refrigerant to cool down through the action of the fan; the plate condenser It is connected with a closed cooling tower and cooled by the closed cooling tower; The implementation method of the energy-saving heat dissipation system for the data center includes the following steps, When the outdoor temperature is higher than 35°C, the first heat dissipation cold source group is activated and needs to provide cold source condensing cooling for the internal cooling plate of the server and the plate condenser in the multi-cooling source unit. The evaporator supplements the cooling capacity of the first evaporator and the multi-cooling source unit respectively; When the outdoor temperature is lower than 35°C, the first heat dissipation cold source group is activated to provide cold source for the internal cooling plate of the server. The internal cooling plate of the server exchanges heat through the intermediate heat exchanger to meet the cooling demand of the cooling plate. At this time, the supplementary cooling system is closed. The multi-cooling source unit exchanges heat through an air-cooled condenser. 2 . The energy-saving heat dissipation system for a data center and its implementation method according to claim 1 , wherein a medium pump is provided between the intermediate heat exchanger and each server, and each server dissipates heat through the medium pump. 3 . 3. An energy-saving heat dissipation system for a data center and its implementation method as claimed in claim 1, characterized in that: a temperature control device is also provided in the cabinet; the connecting pipeline and return water of each of the servers The connecting pipelines are equipped with temperature acquisition devices; each of the temperature acquisition devices is connected to the temperature control device; the temperature acquisition device monitors the server inlet water temperature and return water temperature, and then sends them to the temperature control device; the temperature The control device controls the inlet water temperature and the return water temperature of the first cooling source group entering the server. 4. An energy-saving heat dissipation system for a data center and its implementation method as claimed in claim 3, characterized in that: the temperature control device controls the evaporation temperature of the first evaporator and the temperature and temperature of the water entering the server from the first evaporator Return water temperature.

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