Relief valve construction to minimize ignition hazard from cryog

Details Relief valve construction to minimize ignition hazard from cryog Relief valve construction to minimize ignition hazard from cryog

1994-04-28

1996-11-12

Capossela, Ronald C.

Refrigeration

Storage of solidified or liquified gas

With vapor discharged from storage receptacle

62 501, F17C 704, F17C 902

Patent

active

055728758

ABSTRACT:
A combined second relief valve and restricted orifice is located downstream of the relief valve stack on a vent line. The second relief valve opens at a pressure greater than that of the relief stack. When the second relief valve is closed, vapor is vented through the restricted orifice at high velocity, and when the second relief valve is open, the vapor vents from the unrestricted end of the vent line at high volume.

REFERENCES:
patent: 3123981 (1964-03-01), Carney et al.
patent: 3298187 (1967-01-01), Short
patent: 3548856 (1970-12-01), Vant
patent: 3608324 (1971-09-01), Singleton et al.
patent: 3690115 (1972-09-01), Clayton
patent: 3842613 (1974-10-01), Becker
patent: 4350017 (1982-09-01), Kneip et al.

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