Straddle-type support structure for nuclear power plant pressurizer valves
A support structure is described for supporting a pressurizer safety and relief valve system of a pressurized water reactor. The system is mounted on columnar supports above a pressurizer vessel, the dome of the pressurizer vessel having a top portion of a smaller diameter than the bottom portion thereof, comprising: an upper ring section adapted to rest on the top portion of the pressurizer vessel dome; a lower ring section adapted to encircle the pressurizer vessel side wall at a location adjacent the bottom portion of the pressurizer vessel dome; a plurality of arcuate connecting sections extending between the upper and lower ring sections, and conforming to the shape of the pressurizer vessel dome; a plurality of sleeves attached to the lower ring adjacent the arcuate connecting section; and means for supporting the columnar supports of the pressurizer safety and relief valve system within the sleeves.
- Assignee:
- Westinghouse Electric Corp., Pittsburgh, PA
- Patent Number(s):
- US 4576788
- OSTI ID:
- 5505834
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
CONTROL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
MECHANICAL STRUCTURES
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
POWER PLANTS
PRESSURIZERS
PWR TYPE REACTORS
REACTORS
RELIEF VALVES
SLEEVES
SUPPORTS
THERMAL POWER PLANTS
VALVES
WATER COOLED REACTORS
WATER MODERATED REACTORS