CO2 REFRIGERATION SYSTEM FOR ICE-PLAYING SURFACE
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United States of America Patent
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Issued Date -
Jan 9, 2014
app pub date -
Jan 30, 2013
filing date -
Jan 30, 2012
priority date (Note) -
Abandoned
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Abstract
A CO2 refrigeration system comprising a transfer circuit for heat exchange between a supracompression circuit of CO2 refrigerant, and an evaporation circuit of CO2 refrigerant. A transfer circuit absorbs heat from the evaporation circuit, and releases heat to the supracompression circuit. The supracompression circuit comprises a compression stage in which CO2 refrigerant is compressed, a cooling stage in which the CO2 refrigerant from the compression stage releases heat, and a pressure-regulating unit in a line between the cooling stage and the evaporation heat exchanger to maintain a pressure differential therebetween. The evaporation circuit receives CO2 refrigerant having released heat in the condensation heat exchanger. The evaporation circuit comprises a condensation reservoir in which CO2 refrigerant is accumulated in a liquid state, and an evaporation stage in which the CO2 refrigerant from the condensation reservoir absorbs heat to cool an ice-playing surface.
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