Pumps – Processes – Of pumping one fluid by contact or entrainment with another
Patent
1977-12-20
1979-04-03
Freeh, William L.
Pumps
Processes
Of pumping one fluid by contact or entrainment with another
137205, 417148, B67C 316, F04F 300
Patent
active
041474740
ABSTRACT:
A method for transferring a liquid, particularly liquid metal, from a supply to a receiver. The transfer is carried out by means of at least one suction pump located in the receiver. The outlet of the pump is covered by the liquid being pumped. A buffer zone in shape of a two phase liquid/gas zone is established and maintained between the pump and the supply and liquid from the supply is supplied to the gas phase portion of the buffer zone by discharging the liquid from liquid phase portion of the buffer zone by means of said pump. Precaution is taken that the pump outlet is covered by liquid at all times.
A pumping system for transferring a liquid, particularly liquid metal, from a supply to a receiver comprising a rotary pump with a substantially vertical rotary axis, a closed buffer receptacle which can be subjected to inner suction pressure and has a liquid inlet in the upper portion thereof and a liquid outlet in the lower portion thereof, and comprising conduit means connecting the outlet of the buffer receptacle with the inlet of the pump and means for connecting the inlet of the buffer receptacle with the liquid supply.
REFERENCES:
patent: 2626138 (1953-01-01), Stevens
patent: 2889846 (1959-06-01), Slasby et al.
patent: 3895885 (1975-07-01), Liberg
Heimdal Ivar D.
Skreosen Ivar
Freeh William L.
Gluck Richard E.
Norsk Hydro a.s
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