Title:
REFRIGERATING SYSTEM, EXPANSION VALVE ASSEMBLY AND METHOD FOR CONTROLLING REFRIGERATING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/237909
Kind Code:
A1
Abstract:
The present application relates to a refrigerating system, an expansion valve assembly and a method for controlling a refrigerating system. The refrigerating system comprises a bypass channel, a second temperature sensor and a controller, wherein the bypass channel communicates a first channel with a second channel and is provided with a throttling portion, which is located between an inlet and an outlet of the bypass channel; a sensing head of the second temperature sensor is arranged in the bypass channel, and is between the throttling portion and the outlet of the bypass channel and close to the outlet; when the system is in operation, a working medium in the bypass channel where the sensing head of the second temperature sensor is located is in a saturated state, and the controller obtains sensing results of a first temperature sensor and the second temperature sensor, determines the difference between the sensing results, and determines the degree of superheat at an inlet of a compressor according to the difference. According to the present application, the problem whereby a refrigerating system needs to depend on a pressure sensor to determine the degree of superheat at an inlet of a compressor is solved, and a reduction in the manufacturing cost is facilitated.
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Inventors:
TAN YONGXIANG (CN)
Application Number:
PCT/CN2022/093002
Publication Date:
November 17, 2022
Filing Date:
May 16, 2022
Export Citation:
Assignee:
ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD (CN)
International Classes:
F25B1/00; F25B41/31; F25B49/02
Foreign References:
| CN106482375A | 2017-03-08 | |||
| CN103486783A | 2014-01-01 | |||
| CN108954909A | 2018-12-07 | |||
| CN110440492A | 2019-11-12 | |||
| CN104807229A | 2015-07-29 | |||
| CN202110530306A | 2021-05-14 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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