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
- Meneely, Timothy K.; Ezekoye, Levi I.; Laubham, Thomas J.
- US Patent Document 5,684,846
Shut-Off Valve and Control System Therefor
patent, June 1974
- Grotloh, Karlheinz
- US Patent Document 3814375
Integral Vessel Isolation Wave
patent-application, October 2013
- Malloy III, John D.; Ales, Matthew W.; Edwards, Michael J.
- US Patent Application 13/864466; 20130272478
Pressure Regulator and Shut-Off Valve
patent-application, May 2004
- Callies, Robert E.
- US Patent Application 10/284719; 20040084088
Reactor Adapted for Mitigating Loss-of-Coolant Accident and Mitigation Method Thereof
patent-application, March 2013
- Kim, Young In; Hwang, Young Dong; Chung, Young Jong
- US Patent Application 13/615779; 20130070887
Liquid filling method for a high-temperature and high-pressure vessel and apparatus therefor
patent, June 1992
- Koshiishi, Masato; Kinoshita, Shouichirou; Akita, Minoru
- US Patent Document 5,120,490
Valve Assembly with Isolation Valve Vessel
patent-application, November 2013
- Malloy III, John D.; Edwards, Michael J.
- US Patent Application 13/864377; 20130294567
Passively Actuated Valve
patent-application, December 2004
- Modro, S. Michael; Ougouag, Abderrafi M.
- US Patent Application 10/456236; 20040244841
Method and device for safeguarding the discharge of residual heat from a reactor of a nuclear power station
patent, February 2000
- Hartmann, Heinz; Mackert, Pius
- US Patent Document 6,026,138