Method and system for filling liquid cylinders

Details Method and system for filling liquid cylinders Method and system for filling liquid cylinders

1986-07-22

1989-11-28

Recla, Henry J.

Fluent material handling, with receiver or receiver coacting mea

Processes

Battery grid pasting

141 5, 141 9, 141 83, B67C 332

Patent

active

048830992

ABSTRACT:
Substance loss is minimized in a station for loading a container with cryogenic substance stored in a tank. A throttle vent valve is provided at the outlet vent of a container being loaded for controlling the differential pressure between the storage tank and the container. The pressure of the substance being loaded and the pressure within the container are sensed and the differential pressure is monitored. The throttle vent valve is adjusted to bring the differential pressure to a value equal to the optimum differential pressure for minimizing substance loss. The optimum differential pressure is selected by determining the filling loss for a plurality of values of differential pressure and selecting the differential pressure which produces the minimum filing loss. Overfilling of the container is prevented by sensing the temperature at the outlet vent and terminating the supply of substance to the container when the temperature of the vent reaches a predetermined level. Cavitation is prevented by supplying substance to the pump and activating the pump in response to a predetermined pump temperature.

REFERENCES:
patent: 3802471 (1974-04-01), Wickenhauser
patent: 3863669 (1975-02-01), Ishida et al.
patent: 3938347 (1976-02-01), Riedel et al.
patent: 4276749 (1981-07-01), Crowley
patent: 4475348 (1984-10-01), Remes
patent: 4487025 (1984-12-01), Hamid
patent: 4570819 (1986-02-01), Perkins et al.

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