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Refrigeration cycle system and control method thereof

A technology of circulation system and pipeline, applied in the field of refrigeration circulation system and its control, can solve problems such as refrigeration interruption, and achieve the effect of ensuring safe operation

Pending Publication Date: 2020-11-17
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a refrigeration cycle system and its control method to solve the problem in the prior art that when natural cooling is used for a long time, power outages lead to refrigeration interruptions

Method used

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  • Refrigeration cycle system and control method thereof
  • Refrigeration cycle system and control method thereof
  • Refrigeration cycle system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] This embodiment provides a refrigeration cycle system, figure 1 It is a structural diagram of the refrigeration cycle system according to the first embodiment of the present invention, such as figure 1 As shown, the refrigeration cycle system includes: a first heat exchanger 1, the water side of the first heat exchanger 1 is respectively connected to the chilled water inlet and the chilled water outlet, so that the water entering through the chilled water inlet is cooled and then flows out from the chilled water outlet ; Also include the first pipeline communicated between the outlet end of the first heat exchanger 1 and the inlet end of the second heat exchanger 2, the first pipeline is provided with a liquid pump 3; the outlet end of the first heat exchanger 1 There is also a second pipeline between the inlet end of the second heat exchanger 2, the first end a and the second end b of the second pipeline are connected with the first pipeline, and the first end a and th...

Embodiment 2

[0097] This embodiment provides another refrigeration cycle system, figure 2 It is a structural schematic diagram of the refrigeration cycle system according to the second embodiment of the present invention, in order to realize the flow direction control of the heat exchange medium, such as figure 2 As shown, the system also includes: a first valve 6, arranged on the first pipeline, between the liquid pump 3 and the first end a of the second pipeline, for controlling whether the heat exchange medium flows into the liquid pump 3. When the system is powered on normally, the first valve 6 is opened to prevent the heat exchange medium from flowing into the liquid pump 3. When the system is powered off, the first valve 6 is closed so that the heat exchange medium does not flow into the liquid pump 3.

[0098] The system also includes a second valve 7, which is set on the second pipeline and is used to control whether the second pipeline is conducted, that is, to control whether ...

Embodiment 3

[0113] This embodiment provides another refrigeration cycle system, image 3 It is a structural diagram of a refrigeration cycle system according to a third embodiment of the present invention, such as image 3 As shown, the system includes: a third pipeline connected between the first heat exchanger 1 and the second heat exchanger 2, and a liquid pump 3 is arranged on the third pipeline; a fourth pipeline, the first Both the end e and the second end f are connected with the third pipeline, and the first end e and the second end f are located on both sides of the liquid pump 3; the high-pressure gas storage tank 4 is arranged on the The fourth pipeline is used to discharge high-pressure gas to drive the circulation of the heat exchange medium; the liquid storage tank 5 is arranged on the fourth pipeline, between the high-pressure gas storage tank 4 and the second heat exchanger 2, and The inlet port c is connected to the high-pressure gas storage tank 4, and the outlet port d...

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Abstract

The invention discloses a refrigeration cycle system and a control method thereof. Wherein, the system comprises a first pipeline which is for communication between a first heat exchanger and a secondheat exchanger and is provided with a liquid pump; a second pipeline of which the first end and the second end both communicate with the first pipeline and are located on the two sides of the liquidpump; a high-pressure gas storage tank which is arranged on the second pipeline and is used for exhausting high-pressure gas to drive a heat exchange medium to circulate; and a liquid storage tank which is arranged on the first pipeline, located at the downstream of the second end of the second pipeline and used for storing the heat exchange medium. By the refrigeration cycle system disclosed by the invention, uninterrupted refrigeration during power failure can be realized, and safe operation of equipment in the database is guaranteed.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a refrigeration cycle system and a control method thereof. Background technique [0002] The chiller used in the data center is characterized by year-round cooling. At present, when the outdoor temperature is low (such as winter in severe cold areas), the natural cooling scheme can be used to effectively use the outdoor cold source for cooling, which improves the annual cooling height of the data center. However, when the unit is using natural cooling, if a power outage occurs for a long time, it will lead to cooling interruption, which cannot guarantee the safe and reliable operation of various equipment in the data center. [0003] Aiming at the problem of refrigeration interruption caused by power failure for a long time when natural cooling is adopted in the prior art, no effective solution has been proposed so far. Contents of the invention [0004] Embodiments of t...

Claims

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Application Information

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IPC IPC(8): F25B1/00F25B41/00F25B41/04F25B49/02F24F5/00H05K7/20
CPCF25B1/00F25B49/02F24F5/001F24F5/0017F24F5/0046H05K7/208Y02E60/14
Inventor 李娜程琦刘思源路朋博
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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