IMPROVEMENT RELATING TO STEAM PRODUCING INSTALLATIONS
A nuclear reactor, moderated with heavy water, that is designed for superheating steam is described. The superheated steam delivered by the reactor is divided into a first part fed to the turbine plant and a second part fed to a heat exchanger and a boiler. The water coming from the condenser of the turbine plant is preheated firstly by the heavy water of the moderator by heat exchange, further preheated in several steps by steam expanded in the different stages of the turbine plant, and finally fed to the boiler where it is evaporated by heat exchange with the superheated steam coming from the reactor. The steam developed in the boiler is then superheated in the heat exchanger and delivered to an injection tube axially positioned in the narrowest portion of a venturi tube. After giving up some of its heat to the water in the boiler, the steam coming from the reactor is also fed into the venturi tube. The two steam currents are mixed and expanded together in the venturi. The degree of super-heating is then reduced by injection of a part of the preheated condenser water, before it is fed again into the reactor. With this arrangement a circulation of the steam results without the need for steam blowers. (NPO)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-033033
- OSTI ID:
- 4837083
- Report Number(s):
- FR 1219888
- Country of Publication:
- France
- Language:
- English
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