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Air conditioning companies are collectively facing a 'trial' this year.
June 30th will be the last day that low-efficiency air conditioners under the old national standard are allowed to be listed and sold. According to relevant national standards, from July 1, 2021, all fixed-frequency air conditioners with low efficiency and high power consumption produced before July 1, 2020, and variable-frequency air conditioners with three-level energy efficiency will no longer be allowed to be listed and sold; at the same time, since July 1 last year, all air conditioners produced by enterprises must meet the requirements of the new national energy efficiency standard.
23
2021
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06
Hebei aims to build the nation's largest cold chain logistics supply base
On May 27, reporters visited the construction site of the Hebei Tianhuan Modern Business and Smart Logistics Plaza project in Daliuhe Town, Wen'an County, witnessing the style of a top 100 cold chain logistics enterprise in China. After more than a year of construction, the project has grown from nothing, with increasing numbers of merchants, logistics vehicles coming and going, and bustling transaction centers.
Warmly celebrate the launch of the official website of Hubei Xinxing Refrigeration Machinery Manufacturing Co., Ltd.!
Hubei Xinxing Refrigeration Machinery Manufacturing Co., Ltd. is a high-tech enterprise specializing in the production of refrigeration compressor components (steel valve plates, muffler series). The company has a registered capital of 10 million yuan and covers an area of 26 mu. It integrates R&D, production, and sales, and its products cover compressor manufacturing enterprises across the country.
21
05
Car air conditioning is not working, may be due to these parts?
In the hot summer, when driving, the air conditioner will naturally be turned on. Some people may have this trouble: after driving a new car for two or three years, they find that the air conditioner is becoming less and less effective. Some have a sudden decrease in air volume, while others have a declining cooling effect, making drivers even more irritable in hot weather.
25
04
Failure analysis of liquid slugging in refrigeration compressors
The phenomenon of liquid refrigerant and/or lubricating oil damaging the suction valve plates as they are drawn into the compressor cylinder with the gas, and the phenomenon of high instantaneous liquid pressure produced by compression when the piston approaches top dead center without being quickly discharged during the exhaust process, is commonly known as liquid hammer.
24
The important role of air conditioning compressors
The air conditioning compressor is the heart of the refrigeration system. It draws in low-temperature, low-pressure refrigerant gas from the suction pipe, compresses it using a motor-driven piston, and discharges high-temperature, high-pressure refrigerant gas into the discharge pipe. This provides the power for the refrigeration cycle, achieving refrigeration through compression → condensation → expansion → evaporation (heat absorption).
2020