Pressure control and fluid venting system for a pressurized cont

Details Pressure control and fluid venting system for a pressurized cont Pressure control and fluid venting system for a pressurized cont

1976-03-18

1977-04-05

Cohan, Alan

Fluid handling

Diverse fluid containing pressure systems

Fluid separating traps or vents

137423, F16K 2400

Patent

active

040156214

ABSTRACT:
A system to maintain the pressure within a pressurized container within dgn limits and to vent undesirable fluids to the ambient atmosphere. A float floats near the top of the container on the surface of oil supplied to the container by a pressure compensator and is seated to seal an opening as long as the oil level remains above a given level. Sufficient displacement of the oil by gases generated within the container will unseat the float to allow the venting of such gases to the ambient atmosphere. Another opening is also located in the top of the container and is sealed by a weighted lid. If the pressure in the container exceeds the local ambient atmospheric pressure by an amount that would otherwise rupture the container, the lid will be forced open to allow the relief of the excess pressure. When seated, another float seals an opening located in the bottom of the container. This float will float on atmospheric fluid which accumulates in the bottom of the container. If a given level of accumulated atmospheric fluid is exceeded, the float will become unseated to allow the venting of such fluid. Should the internal pressure of the container drop sufficiently below the local ambient atmospheric pressure, the two floats will unseat to permit the entry of atmospheric fluid to equalize the pressures and prevent the container from being crushed.

REFERENCES:
patent: 2701620 (1955-02-01), Crawford

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