CN102958317A - Cooling system for electronic devices - Google Patents

Abstract

A cooling system for electronic devices comprises a first heat exchanger, a second heat exchanger, a third heat exchanger, a first coolant pipe, a circulating pump and a second coolant pipe. The first heat exchanger is provided with coolant which absorbs heat generated by an electronic device. The third heat exchanger heats up liquefied gas by seawater. The seawater subjected to heat exchange flows through the second heat exchanger to absorb heat of the coolant flowing through the second heat exchanger so as to cool the coolant. The circulating pump powers for transmission of the coolant. The coolant flowing through the first heat exchanger absorbs the heat generated by the electronic device, the third heat exchanger cools the seawater by gasification of the liquefied gas, the cooled seawater is transmitted to the second heat exchanger to absorb the heat of the coolant flowing through the second heat exchanger so as to cool the coolant, and accordingly the electronic device is cooled while the liquefied gas is gasified. The cooling system for electronic devices meets the requirements of today's society for energy conservation and emission reduction.

Description

Cooling systems for electronic equipment

technical field

The invention relates to a cooling system for electronic equipment.

Background technique

At present, as the development of data centers tends to be more flexible, the heat dissipation design methods of data centers are also becoming more and more flexible. Data centers often require a considerable amount of power to cool heat sources. A common heat dissipation method is to install an air conditioner inside the data center. Although the air conditioner can provide low-level cooling air for the data center to dissipate heat, the air conditioner is not conducive to energy saving and emission reduction.

On the other hand, natural gas produced in natural gas fields needs to be purified first, and then liquefied through a series of ultra-low temperatures to turn it into liquefied natural gas for storage and transportation. When the client uses LNG, it needs to gasify the LNG. Generally, seawater (or other rivers and lakes) is used as a heat source to exchange heat between the seawater and the LNG to gasify the LNG. The seawater temperature after heat exchange is very low, if not utilized, it will cause a waste of energy.

Contents of the invention

In view of the above, it is necessary to provide a cooling system for electronic equipment that can effectively save energy.

A cooling system for electronic equipment, comprising a first heat exchanger, a second heat exchanger, a third heat exchanger, a first refrigerant pipe, a circulation pump and a second refrigerant pipe, the first refrigerant pipe And the second refrigerant pipe is provided with a refrigerant that can flow through the first heat exchanger and the second heat exchanger. The first heat exchanger is arranged in the electronic equipment to use the refrigerant flowing through to absorb the heat generated by the electronic equipment. The third heat exchanger The exchanger uses seawater to heat the liquefied gas, and the seawater after heat exchange flows through the second heat exchanger to absorb the heat of the refrigerant flowing through the second heat exchanger to cool the refrigerant, and the circulation pump provides power for the transmission of the refrigerant.

The cooling system of the electronic equipment of the present invention absorbs the heat generated by the electronic equipment by the refrigerant flowing through the first heat exchanger, and the third heat exchanger cools the seawater through the gasification process of the liquefied gas, and the seawater is transferred to the second heat exchanger after being cooled. The second heat exchanger uses low-temperature seawater to absorb the heat of the refrigerant flowing through the second heat exchanger to cool the refrigerant. In this way, the electronic equipment is cooled while the liquefied gas is vaporized, which meets the needs of energy saving and emission reduction in today's society.

Description of drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of a cooling system for an electronic device according to the present invention.

Description of main component symbols

Electronic equipment 10 first heat exchanger 20 The first refrigerant pipe 30 circulation pump 31 Second refrigerant pipe 40 second heat exchanger 50 liquefied gas 61 Liquefied gas outlet 63 third heat exchanger 60 seawater inlet 51 seawater export 53

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

Detailed ways

Please refer to Fig. 1, the preferred embodiment of the cooling system of electronic equipment 10 of the present invention comprises a first heat exchanger 20, a first refrigerant pipe 30, a circulation pump 31, a second refrigerant pipe 40, a second heat exchanger The exchanger 50 and a third heat exchanger 60 . The first heat exchanger 20 , the first refrigerant pipe 30 , the circulation pump 31 , the second refrigerant pipe 40 and the second heat exchanger 50 are connected in sequence to form a circulation system. The first refrigerant pipe 30 and the second refrigerant pipe 40 are provided with refrigerant that can flow through the first heat exchanger 20 and the second heat exchanger 50 .

The electronic device 10 can be a container data center (container data center, CDC for short), a large cabinet or other large heat-generating devices, which will generate continuous and large amounts of heat during operation. In the embodiment of the present invention, the electronic device 10 is a container-type data center.

The first heat exchanger 20 is placed in the electronic device 10 to absorb heat generated by the electronic device 10 .

The first refrigerant pipe 30 is placed between the first heat exchanger 20 and the second heat exchanger 50 for transferring the refrigerant cooled by the second heat exchanger 50 to the first heat exchanger 20 .

The second refrigerant pipe 40 is placed between the first heat exchanger 20 and the second heat exchanger 50 for transferring the refrigerant absorbing the heat of the first heat exchanger 20 to the second heat exchanger 50 for cooling.

The circulation pump 31 is provided between the first refrigerant pipe 30 and the second heat exchanger 50 . The circulation pump 31 is used to provide power for the transmission of the refrigerant between the first heat exchanger 20 and the second heat exchanger 50 . In this embodiment, the circulation pump 31 pumps the refrigerant cooled by the second heat exchanger 50 into the first heat exchanger 20 . The refrigerant flows through the first heat exchanger 20 to absorb the heat of the first heat exchanger 20 and then flows into the second heat exchanger 50 for cooling. This cycle repeats, thereby reducing the temperature of the electronic device 10 and ensuring the integrity of each component in the electronic device 10. Working performance is not affected by temperature. Obviously, in other embodiments, the circulation pump 31 can also be arranged between the second refrigerant pipe 40 and the second heat exchanger 50 to pump the refrigerant passing through the first heat exchanger 20 into the second heat exchanger. device 50.

The third heat exchanger 60 is connected to a liquefied gas 61 and a liquefied gas outlet 63 . The third heat exchanger 60 heats the liquefied gas 61 to vaporize it and then discharges it through the liquefied gas outlet 63 . The third heat exchanger 60 uses seawater (or river and lake water) to heat the liquefied gas 61 . Seawater enters the third heat exchanger 60 from the seawater inlet 51 , and after the seawater heats and vaporizes the liquefied gas 61 , the temperature of the seawater becomes extremely low, and then the low-temperature seawater is introduced into the second heat exchanger 50 . The third heat exchanger 60 is provided with a heat transfer medium for exchanging heat between the liquefied gas 61 and seawater. In this embodiment, the heat transfer medium is antifreeze. The antifreeze liquid can be alcohol, ethylene glycol, propylene glycol, glycerin, calcium chloride solution, magnesium chloride solution or sodium chloride solution, etc., which can be used as refrigerants.

The second heat exchanger 50 utilizes the low-temperature seawater to absorb the heat of the refrigerant flowing through the second heat exchanger 50 to cool the refrigerant. The low-temperature seawater is discharged from the seawater outlet 53 after absorbing the heat of the refrigerant in the second heat exchanger 50 .

The second heat exchanger 50 can be a shell-and-tube heat exchanger, a plate heat exchanger, etc., and directly utilizes the low-temperature seawater flowing through to absorb the heat of the refrigerant flowing through the second heat exchanger 50 .

In this embodiment, the liquefied gas 61 is liquefied natural gas. The liquefied gas 61 may also be other liquid gases that need to be vaporized for use, such as liquid nitrogen.

The cooling system of the electronic equipment of the present invention absorbs the heat generated by the electronic equipment 10 by the refrigerant flowing through the first heat exchanger 20, and the third heat exchanger 60 cools the seawater by using the gasification process of the liquefied gas 61, and the seawater is transported to the The second heat exchanger 50, the second heat exchanger 50 uses the low-temperature seawater to absorb the heat of the refrigerant flowing through the second heat exchanger 50 to cool the refrigerant, so that the electronic equipment is cooled while the liquefied gas 61 is vaporized, which meets the Demand for energy saving and emission reduction in today's society.

Claims (10)

1. the cooling system of an electronic equipment, comprise one first heat exchanger, one second heat exchanger, one the 3rd heat exchanger, one first refrigerant pipe, one circulating pump and one second refrigerant pipe, be provided with the refrigerant of can flow through the first heat exchanger and the second heat exchanger in the first refrigerant pipe and the second refrigerant pipe, the first heat exchanger is arranged at and utilizes the refrigerant of flowing through to absorb the heat of electronic equipment generation in the electronic equipment, the 3rd heat exchanger utilizes seawater that liquid gas is heated to gasify with refrigerated sea water, through the seawater after the heat exchange flow through the second heat exchanger with absorption flow through the second heat exchanger refrigerant heat and cool off refrigerant, this circulating pump provides power for the transmission of refrigerant.

2. the cooling system of electronic equipment as claimed in claim 1, it is characterized in that: liquid gas is liquefied natural gas.

3. the cooling system of electronic equipment as claimed in claim 1, it is characterized in that: liquid gas is liquid nitrogen.

4. the cooling system of electronic equipment as claimed in claim 1 is characterized in that: be provided with heat transfer medium in the 3rd heat exchanger and be used for carrying out heat exchange between liquid gas and seawater.

5. the cooling system of electronic equipment as claimed in claim 4, it is characterized in that: this heat transfer medium is anti frozen liquid.

6. the cooling system of electronic equipment as claimed in claim 5, it is characterized in that: this anti frozen liquid is alcohol, ethylene glycol, propylene glycol, glycerine, calcium chloride solution, magnesium chloride solution or sodium chloride solution.

7. the cooling system of electronic equipment as claimed in claim 1, it is characterized in that: this electronic equipment is case type data center.

8. the cooling system of electronic equipment as claimed in claim 1, it is characterized in that: this electronic equipment is data center.

9. the cooling system of electronic equipment as claimed in claim 1 is characterized in that: the first heat exchanger, the first refrigerant pipe, circulating pump, the second refrigerant pipe and the second heat exchanger link to each other successively and are positioned at the same circulatory system.

10. the cooling system of electronic equipment as claimed in claim 1, it is characterized in that: the second heat exchanger is shell and tube heat exchanger or heat-exchangers of the plate type.

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