Electric heating – Heating devices – Resistive element: igniter type
Patent
1983-05-16
1987-04-07
Albritton, Clarence L.
Electric heating
Heating devices
Resistive element: igniter type
219273, 219314, F22B 128, F22B 2716
Patent
active
046563350
ABSTRACT:
A reflux condensing start-up system includes a steam generator, a start-up vessel connected parallel to the steam generator, a main steam line connecting steam outlets of the steam generator and start-up vessel to a steam turbine, a condenser connected to an outlet of the turbine and a feedwater return line connected between the condenser and inlets of the steam generator and start-up vessel. The start-up vessel has one or more heaters at the bottom thereof for heating feedwater which is supplied over a start-up line to the start-up vessel. Steam is thus generated to pressurize the steam generator before the steam generator is supplied with a heat transfer medium, for example liquid sodium, in the case of a liquid metal fast breeder reactor. The start-up vessel includes upper and lower bulbs with a smaller diameter mid-section to act as water and steam reservoirs. The start-up vessel can thus be used not only in a start-up operation but as a mixing tank, a water storage tank and a level control at low loads for controlling feedwater flow.
REFERENCES:
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Durrant Oliver W.
Kakarala Chandrasekhara R.
Mandel Sheldon W.
Albritton Clarence L.
Edwards Robert J.
Matas Vytas R.
The Babcock & Wilcox Company
Walberg Teresa J.
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