Pressure vessel fill protective device

Details Pressure vessel fill protective device Pressure vessel fill protective device

1995-10-30

1998-09-22

Recla, Henry J.

Fluent material handling, with receiver or receiver coacting mea

Diverse fluid containing pressure filling systems involving...

System fluid used in seal or in valve or lift operation

141 50, 141198, 137 71, 137 6819, 137461, B65B 104

Patent

active

058100571

ABSTRACT:
A method and apparatus for preventing over-pressurization of vessel during filling with a fluid where temperature of the vessel would cause the fluid to flash or rapidly expand on contact. A shut off device is placed in a conduit between the fluid source and the vessel being filled, the shut off device including a flow control piston that is held in position to permit fluid flow. Fluid pressure from the displacement space in the vessel is provided on both end of the piston. When a condition of over-pressurization occurs in the vessel a rupture disc associated with one end of the piston fails and causes a depressurization on that end of the piston causing it to move to a position where further filling of the vessel is prevented. The piston is positioned by a buckling pin and can be reset after over-pressurization of the vessel is connected and filling can resume.

REFERENCES:
patent: 3476133 (1969-11-01), Stedfeld
patent: 3930517 (1976-01-01), Gagala
patent: 4522227 (1985-06-01), Mylander
patent: 4913184 (1990-04-01), Fallon

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