Industry News
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What should be checked before starting the refrigeration compressor
Check the following items before starting the refrigeration compressor: (1) Whether the exhaust stop valve of the compressor is opened, and whether all other valves in the system are in open state except those connected with the atmosphere. (2) Open the cooling water valve of the co...Read more -
Tonggu County in Jiangxi province has done a good job in the construction of refrigeration and preservation facilities for central agricultural products
The Agriculture and Rural Bureau of Tonggu County and the county Finance Bureau jointly carried out the county-level review of the application project for the construction of refrigeration and preservation facilities for producing areas of agricultural products in the county. To provide good serv...Read more -
Huizhou plans to build a cold chain logistics and distribution center for chicken slaughtering and processing, with an initial investment of 110 million yuan
The project of Cold chain logistics distribution Center of Huizhou Lihua Poultry Co., LTD., which slaughters 190 million yellow chickens annually and invests 110 million yuan in the first phase, is located at Tangjiao Village, Yangcun Town, Boluo County. At present, the eia document of the projec...Read more -
Ammonia Refrigerant Use and Safe Solutions
1. About ammonia refrigerant Ammonia is a good refrigerant. It belongs to the natural working fluid ODP=0; GWP=0. It has the best thermodynamic performance, the highest refrigeration efficiency, low price, and low operation and maintenance costs. It has a history of hundreds of years. Domestic in...Read more -
Chiller refrigeration system, water system, electrical system and common faults
Refrigeration chillers are composed of three interrelated systems: refrigerant circulation system, water circulation system, and electrical automatic control system. 1. Refrigerant circulation system: The liquid refrigerant in the evaporator absorbs the heat in the water and starts to evaporate. ...Read more -
Why can fixed frequency air conditioners not be vacuumed, but variable frequency air conditioners must be pumped?
Why do fixed frequency air conditioners do not need to be vacuumed, but variable frequency air conditioners must be vacuumed? In fact, whether it is fixed frequency air conditioners or variable frequency air conditioners, strictly speaking, it is recommended to vacuumize. First, let’s understand ...Read more -
Hazards and cases of substandard refrigeration oil~~
During the maintenance process, the compressor wear and tear caused by the substandard refrigeration oil cause the burnout accident (the bearing or other internal moving parts are worn, causing the shaft to be locked, or the iron scraps block the filter or the iron scraps fall to the compressor a...Read more -
What is the significance of subcooling and superheating in refrigeration systems?
1. Circulation change and principle of refrigeration system After the compressor completes the compression process, the high-temperature and high-pressure refrigerant vapor is discharged into the condenser, and the heat in the condenser is absorbed by the outside air and exchanges heat with the a...Read more -
Anatomy of Damage Causes of Multi-line Compressors
1. Common damage causes of multi-line compressors 1. Multi-line compressor high temperature protection Generally, the reason for the high temperature protection of the compressor is that the suction capacity of the compressor is insufficient or there is no suction capacity. To sum up, there are t...Read more -
Selection and Precautions of Fan Coil Units
In my country, the detection indicators of fan coil units include air volume, cooling capacity, heat supply, cooling capacity per unit fan power, water resistance, A sound level noise, condensation, condensation water treatment, motor winding temperature rise, thermal insulation resistance , leak...Read more -
5 common refrigeration compressors, do you know them all?
1. Semi-hermetic piston refrigeration compressor Among various types of refrigeration compressors, piston compressors are the earliest and are still used more frequently. For example, semi-hermetic piston refrigeration compressors are widely used in refrigeration equipment. Common manufacturers a...Read more -
Four flammable and explosive refrigerants, you must know!
1. R32 refrigerant R32, also known as difluoromethane and carbon difluoride, is colorless and odorless, and its safety level is A2. R32 is a freon substitute with excellent thermodynamic properties, with lower boiling point, lower vapor pressure and pressure ratio, larger refrigeration coefficien...Read more