Water displacement mercury pump

Details Water displacement mercury pump Water displacement mercury pump

1984-04-20

1985-08-13

Freeh, William L.

Pumps

One fluid pumped by contact or entrainment with another

417 92, F04F 1100

Patent

active

045347093

ABSTRACT:
A water displacement mercury pump has a fluid inlet conduit and diffuser, a valve, a pressure cannister, and a fluid outlet conduit. The valve has a valve head which seats in an opening in the cannister. The entire assembly is readily insertable into a process vessel which produces mercury as a product. As the mercury settles, it flows into the opening in the cannister displacing lighter material. When the valve is in a closed position, the pressure cannister is sealed except for the fluid inlet conduit and the fluid outlet conduit. Introduction of a lighter fluid into the cannister will act to displace a heavier fluid from the cannister via the fluid outlet conduit. The entire pump assembly penetrates only a top wall of the process vessel, and not the sides or the bottom wall of the process vessel. This insures a leak-proof environment and is especially suitable for processing of hazardous materials.

REFERENCES:
patent: 128623 (1872-07-01), Hofmann
patent: 422219 (1890-02-01), Jaeger
patent: 751323 (1904-02-01), Moran et al.
patent: 1072562 (1913-09-01), Berg
patent: 1736188 (1929-11-01), Daesen et al.
patent: 2273993 (1942-02-01), Rockwood, Jr.
patent: 2630249 (1953-03-01), Bryant et al.
Perry's Chemical Engineer's Handbook, 5th Edition, Section 6, p. 15.

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