Dry ice cleaning refrigerating system

Abstract

The invention discloses a dry ice cleaning refrigerating system. The dry ice cleaning refrigerating system comprises a refrigerating system formed by a refrigeration compressor, an evaporator and a condenser. The condenser and the evaporator are connected with a dry ice particle heat exchange pipe inner inlet check valve introducing high-pressure dry ice particles into heat exchange pipes and a dry ice particle shell tube check valve introducing the high-pressure dry ice particles into a heat exchange pipe shell tube correspondingly. The condenser and the evaporator are connected with a shelltube cleaning blow-down valve and a heat exchange pipe inner cleaning blow-down valve correspondingly. The dry ice cleaning refrigerating system can inject dry ice particles into the heat exchange pipes of the evaporator and the condenser and to the positions between shells and tubes through high-pressure air to enable lubricating oil films and dirt to shrink, get loose, gasify and expand, so thatthe lubricating oil films and the dirt fall off from the surface of the heat exchanger quickly and thoroughly. The performance of the refrigerating system is improved.

Description

technical field [0001] The invention relates to the technical field of refrigeration and air conditioning, in particular to a refrigeration system cleaned with dry ice. Background technique [0002] The heat exchange surface of the heat exchanger of the refrigeration system is easy to accumulate lubricating oil and generate dirt, which seriously affects the heat transfer effect of the heat exchanger, increases the heat transfer temperature difference, increases the condensation temperature, and decreases the evaporation temperature, resulting in the failure of the refrigeration compressor. The pressure ratio increases, the power consumption increases, and the operating performance of the refrigeration system decreases. Contents of the invention [0003] The object of the present invention is to provide a refrigeration system using dry ice to clean the technical defects in the prior art. [0004] The technical scheme adopted for realizing the purpose of the present inventi...

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Problems solved by technology

[0002] The heat exchange surface of the heat exchanger of the refrigeration system is easy to accumulate lubricating oil and generate dirt, which seriously affects the heat transfer effect of the heat exchanger, increases the heat transfer temperature difference, increases the condensation temperature, and decreases the evaporation temperature, resulting in the failure of the refrigeration compressor. The pressure ratio increases, the power consumption increases, and the operating performance of the refrigeration system decreases

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