Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor... – Flowmeters
Patent
1987-02-12
1988-06-28
Behrend, Harvey E.
Induced nuclear reactions: processes, systems, and elements
Testing, sensing, measuring, or detecting a fission reactor...
Flowmeters
376211, 376247, 376297, 376317, G21C 1700
Patent
active
047537701
ABSTRACT:
This invention relates to a control system for heat supply as hot water from nuclear power plants equipped with condensation units. This leads to the increased efficiency of the nuclear power plant on the basis of heat extraction from the turbine and its utilization for district heating with hot water as agent. The system requires a turbine nonadjustable bleeding through which a steam flow is extracted. A flow nozzle for steam flow measurement is provided on the steam transport line, a pressure transducer which sends a signal to a comparing and control unit which receives also a signal from another pressure transducer located on the turbine first stage. The comparing and control unit actuates the motorized steam and condensate valves, performing the turbine protection in case that the steam flow extracted at the nonadjustable bleeding exceeds the allowed limit. The delivered heat control is performed indirectly by water flow variation in the secondary circuit of district heating by means of a motorized control valve. This control valve is controlled by means of a heat calculation unit which receives signals from a flow transmitter and two thermoresistances.
REFERENCES:
patent: 4299660 (1981-11-01), Quade
Nuclear Eng. Int., Feb. 1979, pp. 44-47, Mustoe.
Atomic Energy Review, vol. 17, No. 4, 1979, Beresovski et al, pp. 915-944.
Bogdan Horia
Ionescu Ion
Marinescu Radu
Salgian Margarios
Samoila Serban
Behrend Harvey E.
Dubno Herbert
Institutul de Studii Si Proiectari Energetice
Ross Karl F.
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