Mixed-flow feedwater heater having a regulating device

Details Mixed-flow feedwater heater having a regulating device Mixed-flow feedwater heater having a regulating device

1978-05-17

1980-06-17

Favors, Edward G.

Liquid heaters and vaporizers

Circulation

With start-up operations

60 3918B, 122441, 122451R, F22B 2912

Patent

active

042078423

ABSTRACT:
A mixed-flow feedwater heater having a regulating device is disclosed including a feedwater tank having a deaerating dome. Steam is conveyed from a low pressure steam drum to a feedwater tank to heat and deaerate the feedwater. Feedwater is supplied from the feedwater tank either to the low pressure steam drum or to an evaporator. The water level in the low pressure steam drum is regulated to a desired level. The feedwater tank is connected to the steam drum by a steam pipe having a pressure-regulating valve which is subjected to the pressure in the mixed flow feedwater tank. The valve controls the pressure in the feedwater tank so that the pressure does not exceed a pre-determined value.

REFERENCES:
patent: 3769795 (1973-11-01), Rostrom
patent: 3955358 (1976-05-01), Martz et al.
patent: 3965675 (1976-06-01), Martz et al.

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