Drain recovery system for condensate feedwater system of nuclear

Details Drain recovery system for condensate feedwater system of nuclear Drain recovery system for condensate feedwater system of nuclear

1986-04-15

1987-12-15

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

With control of reactor

By coolant flow

376258, 60665, G21C 732

Patent

active

047132094

ABSTRACT:
A drain recovery system for the condensate feedwater system of a nuclear power plant having condensate pumps for boosting the condensate from a condenser, and feedwater heaters for heating the condensate from the condensate pumps. The drain recovery system is provided with drain pumping-up recovery having a drain tank for storing a feedwater heater drain, and drain pumps connected to the drain tank for pumping up the drain therein to inject it into said condensate feedwater system at a predetermined portion thereof, and drain level control device having a conduit connected between a portion of the drain pumping-up recovery system upstream of the drain pumps and a portion of the condensate feedwater system upstream of the condensate pumps for causing the drain in the drain tank to be returned to the portion upstream of the condensate pumps by a pressure differential therebetween so as to maintain a drain level in the drain tank at a predetermined position when the plant operates at a low load level or the drain pumps malfunction.

REFERENCES:
patent: 4311013 (1982-01-01), Kuribayashi
patent: 4319320 (1982-03-01), Sato
patent: 4365476 (1982-12-01), Masuda
patent: 4434620 (1984-03-01), Ishimatu
patent: 4442676 (1984-04-01), Rudolph
patent: 4576007 (1986-03-01), Arakawa
patent: 4635589 (1987-01-01), Draper
"Technical Report of Mitsubishi Heavy Industries", vol. 17, No. 2, (1980-1983).

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