The main applications of industrial refrigeration are petrochemicals, large-scale food processing, beer production and biopharmaceuticals .

 

       The original industrial refrigeration industry mainly uses open screw compressors, and the compressor mainly uses ammonia refrigerant. Industry online preliminary statistics show that the annual sales growth of the open screw compressor market in 2017 is 5,300, a compound annual growth rate of 3.5%. In 2013-2017, the ammonia refrigeration screw compressors were reduced at a rate of 5.5% per year. Equipment manufacturing companies are highly concentrated. The market share of domestic companies such as icebergs, moons, and snowmen exceeds 70% . New York, GEA and other foreign companies also have a certain market.

 

       The market, the chemical industry as the main application field of industrial refrigeration, peaks in the process of rapid development during the "Eleventh Five-Year"; the market gradually saturated, in the twelfth five years of a batch of "ammonia leakage explosion process of major impact, Coupled with the tightening of the new normal capital of the economy, the project began to decline.As the refrigerant of the refrigeration industry, ammonia began to go  downhill.

 

       In fact, ammonia has a high cooling efficiency as a natural refrigerant. Compared with fluorocarbon refrigeration, it has obvious advantages in environmental protection and energy saving. Several investigations of liquid ammonia leakage accidents have found that improper operation or improper operation of liquid ammonia plants is the main cause of accidents and should not be accidents. Of course, the safety of the ammonia refrigeration system must also be given sufficient attention. In the ammonia refrigeration system, ammonia injection, design, materials, construction processes, and effective supervision of the entire system should be strictly controlled to ensure safe and reliable operation of the ammonia refrigeration system.

 

       In recent years, various companies have been accelerating their natural refrigerants. Ammonia and carbon dioxide have become the mainstream of the future, and the “ammonia” color has eased. However, due to safety concerns, more restrictions apply to the use of ammonia refrigerants by ammonia. Residents with a relatively small total number of refrigeration projects are generally located in the suburbs, and the “Ammonia Refrigeration Industry Reform F” continues. The frozen ammonia large-scale industrial projects continue to decrease. We expect that this situation will not change significantly in the short term.

 

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