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Refrigeration system and its control method

A refrigeration system and valve port technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of low defrosting flow path temperature and long defrosting time, and achieve short defrosting time and average heating capacity. High, good defrosting effect

Active Publication Date: 2018-09-11
GUANGDONG MEIZHI COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason is: in order to prevent too much refrigerant from participating in the defrosting, the defrosting flow path is controlled by a thin tube or a throttling device to balance the pressure, which results in a low temperature of the defrosting flow path and a long defrosting time

Method used

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  • Refrigeration system and its control method
  • Refrigeration system and its control method
  • Refrigeration system and its control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] refer to figure 1 , in this embodiment, the refrigeration system 100 includes the compressor 1 , the four-way valve 2 , the outdoor heat exchanger 3 , the throttling device 4 and the indoor heat exchanger 5 . The refrigeration system 100 also includes a three-way valve 6, the three-way valve 6 has a fifth valve port 61, a sixth valve port 62 and a seventh valve port 63, the fifth valve port 61 is connected to the second exhaust port 142, the sixth valve port The port 62 is connected to the second outdoor heat exchange port 32 , and the seventh valve port 63 is connected to the inner cavity of the housing 11 . Thus, when the fifth valve port 61 communicates with the sixth valve port 62, the second exhaust port 142 communicates with the second outdoor heat exchange port 32 and is blocked from the main exhaust port 111; When the seven valve ports 63 are connected, the second exhaust port 142 is connected to the main exhaust port 111 and blocked from the second outdoor hea...

Embodiment 2

[0056] refer to figure 2, in this embodiment, the refrigeration system 100 includes the compressor 1 , the four-way valve 2 , the outdoor heat exchanger 3 , the throttling device 4 and the indoor heat exchanger 5 . The refrigeration system 100 also includes a three-way valve 6, the three-way valve 6 has a fifth valve port 61, a sixth valve port 62 and a seventh valve port 63, the fifth valve port 61 is connected to the second exhaust port 142, the sixth valve port The port 62 is connected to the second outdoor heat exchange port 32 , and the seventh valve port 63 is connected to the inner cavity of the housing 11 . Thus, when the fifth valve port 61 communicates with the sixth valve port 62, the second exhaust port 142 communicates with the second outdoor heat exchange port 32 and is blocked from the main exhaust port 111; When the seven valve ports 63 are connected, the second exhaust port 142 is connected to the main exhaust port 111 and blocked from the second outdoor hea...

Embodiment 3

[0059] refer to image 3 , in this embodiment, the refrigeration system 100 includes the compressor 1 , the four-way valve 2 , the outdoor heat exchanger 3 , the throttling device 4 and the indoor heat exchanger 5 . The refrigeration system 100 also includes a three-way valve 6, the three-way valve 6 has a fifth valve port 61, a sixth valve port 62 and a seventh valve port 63, the fifth valve port 61 is connected to the second exhaust port 142, the sixth valve port The port 62 is connected to the second outdoor heat exchange port 32 , and the seventh valve port 63 is connected to the inner cavity of the housing 11 . Thus, when the fifth valve port 61 communicates with the sixth valve port 62, the second exhaust port 142 communicates with the second outdoor heat exchange port 32 and is blocked from the main exhaust port 111; When the seven valve ports 63 are connected, the second exhaust port 142 is connected to the main exhaust port 111 and blocked from the second outdoor hea...

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Abstract

The invention discloses a refrigerating system and a control method thereof. The refrigerating system comprises a compressor, an outdoor heat exchanger, a throttling device and an indoor heat exchanger which are sequentially connected end to end to form a circuit. The compressor includes a shell and a compression mechanism. The shell is provided with a main discharge port. The compression mechanism has a first compression chamber and a second compression chamber independent of each other. The first discharge port of the first compression chamber is suitable for connecting with the main discharge port. The gas port is connected, and the refrigeration system also includes a four-way valve with first to fourth valve ports, the main exhaust port is connected to the first valve port, the first suction port of the first compression chamber and the second port of the second compression chamber The suction ports are all connected to the fourth valve port, and the second discharge port of the second compression chamber is selectively connected to one of the main discharge port and the outdoor heat exchanger and blocked from the other. According to the refrigeration system of the present invention, defrosting can be performed while heating, and the defrosting effect is good, the defrosting time is short, and the average heating capacity is high.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a refrigeration system and a control method thereof. Background technique [0002] In the related art, some refrigeration equipment has non-stop defrosting function, but the actual application effect is not very good. The main reason is: in order to prevent too much refrigerant from participating in the defrosting, the defrosting flow path is controlled by a thin tube or a throttling device to balance the pressure, so that the temperature of the defrosting flow path is not high and the defrosting time is long. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, the present invention proposes a refrigeration system, which can realize defrosting while heating, has good defrosting effect and short defrosting time. [0004] The present invention also proposes a contr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B13/00F25B41/06F25B41/04F25B47/02F25B49/02F25B41/20F25B41/30
CPCF25B13/00F25B47/025F25B49/02F25B41/22F25B41/30
Inventor 廖四清冯利伟
Owner GUANGDONG MEIZHI COMPRESSOR
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