Refrigerant release prevention system
First Claim
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1. An apparatus for preventing the release of refrigerant from a mechanical refrigeration system having piping within which is placed a system safety pressure relief value having a relief set point, and having a compressor having a suction side, comprising:
- an auxiliary receiving tank;
a refrigerant flow line in fluid connection to said tank from a pressure relief valve in the system line having a system relief valve, which conducts flow of refrigerant to said tank upon opening of said pressure relief valve;
a refrigerant flow return line in fluid connection from said tank to a second valve located in a low pressure point in the mechanical refrigeration system; and
control means for opening said second valve responsive to refrigerant pressure in said auxiliary tank and a drop in the pressure of refrigerant adjacent the system relief valve to below a set point.
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Abstract
A system for diverting refrigerant into an auxiliary receiving vessel to reduce refrigerator system pressure during an incipient over-pressure condition to prevent activation of safety pressure relief valves and release of refrigerant into the atmosphere.
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Citations
4 Claims
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1. An apparatus for preventing the release of refrigerant from a mechanical refrigeration system having piping within which is placed a system safety pressure relief value having a relief set point, and having a compressor having a suction side, comprising:
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an auxiliary receiving tank; a refrigerant flow line in fluid connection to said tank from a pressure relief valve in the system line having a system relief valve, which conducts flow of refrigerant to said tank upon opening of said pressure relief valve; a refrigerant flow return line in fluid connection from said tank to a second valve located in a low pressure point in the mechanical refrigeration system; and control means for opening said second valve responsive to refrigerant pressure in said auxiliary tank and a drop in the pressure of refrigerant adjacent the system relief valve to below a set point. - View Dependent Claims (2, 3, 4)
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Specification