Apparatus for returning condensate

Details Apparatus for returning condensate Apparatus for returning condensate

1973-03-26

1977-05-24

Cohan, Alan

Pumps

One fluid pumped by contact or entrainment with another

Liquid pumped by supplying or exhausting gaseous motive...

417131, 1376256, F04F 106

Patent

active

040252361

ABSTRACT:
To return condensate from a system using steam to a boiler, a sump chamber is arranged to collect the condensate and to return the condensate under pressure to the boiler when a float within the sump opens a pilot valve. High pressure gases from a compressor are supplied to a valve chamber which is in communication with the sump chamber through a valve. Normally, the pilot valve is closed and flow of the high pressure gases into the sump chamber is blocked. When the pilot valve is opened it, in turn, passes a flow of the high pressure gas so that it opens the valve in the valve chamber for admitting the high pressure gas into the sump chamber. When the valve is closed so that no high pressure gas enters the sump chamber, the sump chamber is connected to an exhaust port whereby it can be vented.

REFERENCES:
patent: 862867 (1907-08-01), Eggleston
patent: 1258835 (1918-03-01), Washington
patent: 1439691 (1922-12-01), Chase
patent: 2192200 (1940-03-01), Page
patent: 2644405 (1953-07-01), Yeomans
patent: 3790306 (1974-02-01), Uefuji

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