Apparatus for localizing disturbances in pressurized water reactors (PWR)

Patent · Sun Jan 01 00:00:00 EST 1989

OSTI ID:7781038

Sykora, Dalibor

The invention according to CS-PS 177386, entitled ''Apparatus for increasing the efficiency and passivity of the functioning of a bubbling-vacuum system for localizing disturbances in nuclear power plants with a pressurized water reactor'', concerns an important area of nuclear power engineering that is being developed in the RGW member countries. The invention solves the problems of increasing the reliability and intensification during the operation of the above very important system for guaranteeing the safety of the standard nuclear power plants of Soviet design. The essence of the invention consists in the installation of a simple passively operating supplementary apparatus. Consequently, the following can be observed in the system: first an improvement and simultaneous increase in the reliability of its function during the critical transition period, which follows the filling of the second space with air from the first space; secondly, elimination of the hitherto unavoidable initiating role of the active sprinkler-condensation device present; thirdly, a more effective performance and subjection of the elements to disintegration of the water flowing from the bubbling condenser into the first space; and fourthly, an enhanced utilization of the heat-conducting ability of the water reservoir of the bubbling condenser. Representatives of the supplementary apparatus are autonomous and local secondary systems of the sprinkler-sprayer without an insert, which spray the water under the effect of gravity. 1 fig.

• Research Organization: Ceske Energeticke Zavody, Prague (Czechoslovakia)
• DOE Contract Number: AC05-84OR21400
• Assignee: Ceske Energeticke Zavody, Prague (Czechoslovakia)
• Patent Number(s): ORNL/tr-89/14
• Application Number: ON: DE89008863; TRN: 89-008314
• OSTI ID: 7781038
• Resource Relation: Patent File Date: 1976 Dec 18; Other Information: Portions of this document are illegible in microfiche products; Related Information: Translation of German Patent 1575 25, December 18, 1976
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
22 GENERAL STUDIES OF NUCLEAR REACTORS
REACTOR MONITORING SYSTEMS
DESIGN
HEAT TRANSFER
HYDRAULICS
INVENTIONS
PWR TYPE REACTORS
REACTOR SAFETY
ENERGY TRANSFER
FLUID MECHANICS
MECHANICS
REACTORS
SAFETY
WATER COOLED REACTORS
WATER MODERATED REACTORS
210200* - Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
220900 - Nuclear Reactor Technology- Reactor Safety