Refrigeration system with filling level monitoring function
The invention relates to a method and device used for monitoring refrigerant charge in a refrigerant loop (46) of a refrigeration system; the refrigeration system (10) comprises a compressor (12), a condenser or a gas cooler (14), an expansion device (16) and an evaporator device (18); when the comp...
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Main Authors | , , , , |
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Format | Patent |
Language | Chinese English |
Published |
01.06.2016
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to a method and device used for monitoring refrigerant charge in a refrigerant loop (46) of a refrigeration system; the refrigeration system (10) comprises a compressor (12), a condenser or a gas cooler (14), an expansion device (16) and an evaporator device (18); when the compressor (12) is closed, the method comprises the following steps: measuring at least one temperature, and measuring refrigerant pressure in the refrigeration system; if the measured pressure is out of a nominal pressure scope, determining the refrigerant charge error, when the refrigerant is not enough, the refrigerant nominal pressure is determined according to the measured temperature, and the nominal pressure scope comprises the pressure value having the most regulated deviation from the nominal pressure; when the compressor is opened, the method comprises the following steps: measuring at least one temperature; measuring refrigerant pressure in the exit of the condenser or gas cooler; if the measured pressure is |
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Bibliography: | Application Number: CN20151830465 |