Feedwater preheater with two steam chambers

Details Feedwater preheater with two steam chambers Feedwater preheater with two steam chambers

1975-12-08

1977-11-08

Cohan, Alan

Heat exchange

With alarm, indicator, signal, register, recorder, test or...

Remotely controlled inspection means

122 32, 165110, 165158, F22D 132

Patent

active

040571033

ABSTRACT:
Feedwater preheater installable horizontally within a turbine exhaust steam housing for heating feedwater by means of condensing bleeder steam from the turbine, includes inlet and outlet chambers for the feedwater both located at one side of the preheater, an outer steam chamber adjacent the inlet and outlet chambers, an inner steam chamber disposed within the outer steam chamber, means for supplying the bleeder steam at different pressures to the respective steam chambers, a water chamber closed in itself partially defining the inner steam chamber, a plurality of feedwater conducting tubes communicating with the feedwater inlet chamber and disposed in the outer steam chamber, the tubes having a substantially 180.degree. bend formed therein at a location of the outer steam chamber remote from the feedwater inlet chamber and communicating at the bend thereof with the water chamber, and a plurality of additional tubes disposed in the inner steam chamber and communicating at one end thereof with said water chamber and at the other end thereof with said outlet chamber.

REFERENCES:
patent: 3101595 (1963-08-01), Peters

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