Fluid handling – With heating or cooling of the system – Circulating fluid in heat exchange relationship
Patent
1997-01-09
1998-10-13
Chambers, A. Michael
Fluid handling
With heating or cooling of the system
Circulating fluid in heat exchange relationship
137 13, 16510414, 165183, F16K 4900
Patent
active
058197869
ABSTRACT:
A device for storing and discharging a viscous liquid for a tank which is adapted to accommodate a viscous liquid, the device has an outer tubular element adapted to be arranged inside the tank and open into its interior so that the viscous liquid fills a space inside the outer tubular element, an inner tubular element located inside an inner chamber of the outer tubular element and being substantially closed, means for supplying the viscous liquid into the outer tubular element and discharging liquid from the outer tubular element, means for supplying a heating medium into the inner tubular element so that the heating medium inside the inner tubular element gives out heat through a wall of the inner tubular element into the inner chamber of the outer tubular element and therefore to the viscous liquid so as to heat the viscous liquid and to reduce its viscosity, and for discharging the heating medium which has been cooled as a result of giving off the heat, the means for discharging the liquid from the outer tubular element including pump means having a suction inlet which is directly connected with a space between the outer tubular element and the inner tubular element so as to suck the viscous liquid from the space, the pump means being lowerable together with the outlet tubular element and the inner tubular element substantially to a bottom of the tank.
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patent: 3871445 (1975-03-01), Wanka et al.
patent: 4657074 (1987-04-01), Tomita et al.
patent: 4926830 (1990-05-01), McNelley
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