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Two-stage evaporation with liquid subcooling and suction steam superheat integrated in frequency controlled modular technique
Two-stage evaporation with liquid subcooling and suction steam superheat integrated in frequency controlled modular technique
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机译：集成了变频控制技术的液体过冷和吸入蒸汽过热的两级蒸发
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摘要
Installation of refrigeration of modular construction with one or several refrigeration assemblies or modules (11) arranged in an allele pair, characterized in that each module (11) includes a refrigerant compressor (1) which can be controlled through a frequency converter (10), a condenser (3), a two-stage evaporator with a liquid subcooler / suction steam superheater integrated in the form of an internal heat exchanger in the second evaporation stage (4, 5), a Injection valve (2), as well as pipelines, auxiliary refrigeration substances (9) and a refrigerant refill, leaving the first coolant stage designed as an evaporator flooded with liquid fractions and entering as a gas / liquid mixture with a high fraction of gas in the second evaporation stage designed as a dry evaporator, in which a residual evaporation takes place with a high subsequent superheating of the refrigerant and with a simultaneous subcooling of the liquid refrigerant on the second side of the internal heat exchanger.
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