Steam generating apparatus and methods

Details Steam generating apparatus and methods Steam generating apparatus and methods

1982-07-13

1986-03-04

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Having condition responsive control

60654, 60670, 60667, 122406B, 122407, 122414, 122451Z, F01K 1302

Patent

active

045733236

ABSTRACT:
Steam generating apparatus and methods wherein a liquid is recirculated within a boiler by use of a constant speed dynamic feed water pump acting both to feed the boiler and to effect recirculating therein by a jet pump with its jet nozzle in liquid flow series with the dynamic pump. The jet pump also receives water from a steam drum for recirculation through the boiler. In the event of excess feed water supply to the boiler a step-function level control for the steam drum bypasses liquid to a condenser. A second jet pump acts to utilize excess feed water to supply cool water from the condenser well under pressure to the dynamic pump so that no water is bypassed to the condenser under on-design operating conditions. For waste heat recovery to provide shaft power automatically with simplified controls.

REFERENCES:
patent: 2116587 (1938-05-01), Toensfeldt
patent: 2679831 (1954-06-01), Henkel
patent: 3103917 (1963-09-01), Bauer et al.
patent: 3478726 (1979-11-01), Kikinis
patent: 3575144 (1971-04-01), Takahashi et al.

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