Patent
1974-03-11
1976-01-13
Behrend, Harvey E.
55198, G21C 1500
Patent
active
039322122
ABSTRACT:
Apparatus for depressurizing, degassing and affording decay of weakly radioactive condensates in nuclear power plants having a turbine, and a main condenser turbine wherein exhaust steam of the turbine is condensed and forms a main condensate, and includes a collecting tank for the condensate situated below the condenser. A plurality of horizontal degassing channels, each having a lateral overflow, are disposed in the upper part of the condensate collecting tank and are filled with the main condensate up to the level of the overflow. At least one feedwater preheater which is heated by bleeder steam from the turbine provides a secondary condensate. Below the overflow height of the degassing channels extend horizontal feed pipes for the secondary condensate. The feed pipes are connected to the output of pressure relieving expanding devices and are provided on their underside with discharge openings for the bubbling of the secondary condensate into the main condensate to thereby degass the main condensate. The condensate collecting tank has mutually offset partitions therein providing an adequately long path for the decay of the main and secondary condensates. The condensate which is discharged from the condensate collecting tank is returned into the cycle as feedwater. Also disclosed is a method of operating the foregoing apparatus.
REFERENCES:
patent: 3096166 (1963-07-01), Kolthof et al.
patent: 3117422 (1964-01-01), Bauer et al.
patent: 3431168 (1969-03-01), Kjemtrup
patent: 3437557 (1969-04-01), Kaipainer et al.
Gross Rudolf
Plotz Johann
Behrend Harvey E.
Kraftwerke Union Aktiengesellschaft
Lerner Herbert L.
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