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Title: Passive integral isolation valve

Abstract

A valve assembly includes a flange connected to a vessel penetration of a reactor pressure vessel of a nuclear reactor. A valve is disposed inside the flange or protrudes from the flange into the vessel penetration. The valve includes a valve seat and a movable valve member positioned so that pressure inside the reactor pressure vessel urges the movable valve member against the valve seat to close the valve. The valve assembly further includes a plenum having an inlet via which the plenum can be pressurized to apply pressure to the movable valve member that urges the movable valve member away from the valve seat to open the valve. The plenum may be defined in part by a surface of the movable valve member. The valve assembly preferably does not include a valve actuator.

Inventors:
Issue Date:
Research Org.:
BWXT mPower, Inc., Charlotte, NC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1650972
Patent Number(s):
10672524
Application Number:
14/877,048
Assignee:
BWXT mPower, Inc. (Charlotte, NC)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
DOE Contract Number:  
NE0000583
Resource Type:
Patent
Resource Relation:
Patent File Date: 10/07/2015
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 42 ENGINEERING

Citation Formats

Malloy, III, John D. Passive integral isolation valve. United States: N. p., 2020. Web.
Malloy, III, John D. Passive integral isolation valve. United States.
Malloy, III, John D. Tue . "Passive integral isolation valve". United States. https://www.osti.gov/servlets/purl/1650972.
@article{osti_1650972,
title = {Passive integral isolation valve},
author = {Malloy, III, John D.},
abstractNote = {A valve assembly includes a flange connected to a vessel penetration of a reactor pressure vessel of a nuclear reactor. A valve is disposed inside the flange or protrudes from the flange into the vessel penetration. The valve includes a valve seat and a movable valve member positioned so that pressure inside the reactor pressure vessel urges the movable valve member against the valve seat to close the valve. The valve assembly further includes a plenum having an inlet via which the plenum can be pressurized to apply pressure to the movable valve member that urges the movable valve member away from the valve seat to open the valve. The plenum may be defined in part by a surface of the movable valve member. The valve assembly preferably does not include a valve actuator.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {6}
}

Works referenced in this record:

Nuclear reactor plant having containment isolation
patent, November 1997


Integral Vessel Isolation Wave
patent-application, October 2013


Pressure Regulator and Shut-Off Valve
patent-application, May 2004


Reactor Adapted for Mitigating Loss-of-Coolant Accident and Mitigation Method Thereof
patent-application, March 2013


Liquid filling method for a high-temperature and high-pressure vessel and apparatus therefor
patent, June 1992


Valve Assembly with Isolation Valve Vessel
patent-application, November 2013


Passively Actuated Valve
patent-application, December 2004