Rupture disk fragment collection trap for refrigeration systems

Details Rupture disk fragment collection trap for refrigeration systems Rupture disk fragment collection trap for refrigeration systems

1994-08-11

1996-11-26

Wayner, William E.

Refrigeration

Processes

Compressing, condensing and evaporating

62475, 137 71, F16K 1714, F25B 4304

Patent

active

055773893

ABSTRACT:
The present invention relates to a rupture disk fragment collection trap for minimizing the loss of refrigerant from a mechanical refrigeration system. A mechanical refrigeration system generally includes a storage vessel for the storage of a refrigerant, which to comply with applicable safety codes requires a pressure relief unit for venting an over-pressurized storage vessel. The pressure relief unit includes a fragmentary carbon rupture disk that provides a mechanical seal to contain the refrigerant, prevent the infiltration of contaminants into the refrigeration system, and rupture to relieve the over-pressurized state of the storage vessel. A mechanical re-seating type pressure relief valve is positioned downstream from the carbon rupture disk to control the flow of refrigerant into the atmosphere. The valve and the rupture disk are connected in fluid communication by a sealed passageway containing a rupture disk fragment collection trap. The trap prevents fragments in the passageway following rupture disk breakage from interfering with the operation of the pressure relief valve. After the pressure in the passageway has dropped below a predetermined value the pressure relief valve closes to prevent any further escape of refrigerant into the atmosphere.

REFERENCES:
patent: 3155271 (1964-11-01), Summers et al.
patent: 3960206 (1976-06-01), Baxter et al.
patent: 4819683 (1989-04-01), Buffham et al.
patent: 5153396 (1992-10-01), Cummings
patent: 5187953 (1993-02-01), Mount
patent: 5259204 (1993-11-01), McKeown

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