Inadvertent actuation block valve for a small modular nuclear reactor

O'Brien, Hugh S.; Velkoff, William Jeffrey

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Title: Inadvertent actuation block valve for a small modular nuclear reactor

Abstract

An inadvertent actuation block valve includes inlet and outlet orifices being in selective fluid communication via a chamber. A disc is disposed within the chamber and a bellows is configured to contract at a predetermined pressure differential between reactor fluid entering a reference pressure orifice and control fluid entering the inlet orifice. When the bellows contracts, the disc engages the outlet orifice and isolates fluid communication between the inlet and outlet orifices. The inadvertent actuation block valve prevents inadvertent opening of an emergency core cooling valve when a reactor is at operating pressure that is above the predetermined set pressure range. The inadvertent actuation block valve permits the emergency cooling valves to open and to remain open when reactor pressure is below the predetermined set pressure range. The inadvertent actuation block valve does not impede long term emergency cooling that occurs when the reactor is at low pressure.

Inventors:: O'Brien, Hugh S.; Velkoff, Jr., William Jeffrey

Issue Date:: 2022-12-06

Research Org.:: Curtiss-Wright Flow Control Corporation, Farmingdale, NY (United States); NuScale Power LLC, Corvallis, OR (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1986916

Patent Number(s):: 11521757

Application Number:: 16/294,062

Assignee:: Curtiss-Wright Flow Control Corporation (Farmingdale, NY); NuScale Power, LLC (Corvallis, OR)

DOE Contract Number:: NE0000633

Resource Type:: Patent

Resource Relation:: Patent File Date: 03/06/2019

Country of Publication:: United States

Language:: English

Citation Formats


                    O'Brien, Hugh S., and Velkoff, Jr., William Jeffrey. Inadvertent actuation block valve for a small modular nuclear reactor.  United States: N. p., 2022. 
        Web.

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                    O'Brien, Hugh S., & Velkoff, Jr., William Jeffrey. Inadvertent actuation block valve for a small modular nuclear reactor.  United States.

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                    O'Brien, Hugh S., and Velkoff, Jr., William Jeffrey. Tue .  
        "Inadvertent actuation block valve for a small modular nuclear reactor".  United States.  https://www.osti.gov/servlets/purl/1986916.

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@article{osti_1986916,

  title        = {Inadvertent actuation block valve for a small modular nuclear reactor},

  author       = {O'Brien, Hugh S. and Velkoff, Jr., William Jeffrey},

  abstractNote = {An inadvertent actuation block valve includes inlet and outlet orifices being in selective fluid communication via a chamber. A disc is disposed within the chamber and a bellows is configured to contract at a predetermined pressure differential between reactor fluid entering a reference pressure orifice and control fluid entering the inlet orifice. When the bellows contracts, the disc engages the outlet orifice and isolates fluid communication between the inlet and outlet orifices. The inadvertent actuation block valve prevents inadvertent opening of an emergency core cooling valve when a reactor is at operating pressure that is above the predetermined set pressure range. The inadvertent actuation block valve permits the emergency cooling valves to open and to remain open when reactor pressure is below the predetermined set pressure range. The inadvertent actuation block valve does not impede long term emergency cooling that occurs when the reactor is at low pressure.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2022},

  month        = {12}

}

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Works referenced in this record:

Fluid Pressure Regulator
patent, April 1946

Paasche, Jens A.
US Patent Document 2398503
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/2398503

Passive, double acting, vacuum actuated vent valve
patent, November 2007

Gisler, Gary Lynwood; Hanks, James T.; Stevens, Carlos J.
US Patent Document 7,299,817
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Pressure Relief Device
patent, January 1956

Schwarz, Karl Hermann
US Patent Document 2732853
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Compound Pressure Regulating System for Refrigeration
patent, June 1962

Tilney, Ralph B.; Schenk, John A.
US Patent Document 3037362
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Hydraulic disconnector
patent, November 1994

Vollmer, Rudolf
US Patent Document 5,363,875
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Nonchattering Pressure Relief Valve
patent, November 1971

Friedell, Morley V.
US Patent Document 3620501
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Valve and Fuel Supply System
patent-application, January 2005

Griffiths, Michael; Yates, Martin Kenneth
US Patent Application 10/896420; 20050016591
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Pressure Independent Control Valve
patent-application, February 2005

Carlson, Bengt A.
US Patent Application 10/948662; 20050039797
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Thermal Bypass Valve with Bimetallic Control
patent, January 1967

Slater, George E.; Jones, Don W.
US Patent Document 3300135
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3300135

Valve Device
patent, June 1940

Schorer, Herman
US Patent Document 2203367
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Pressure switching valve device
patent, January 1978

Itoh, Tomo; Yanagisawa, Syozo
US Patent Document 4,066,091
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Control devices for heaters
patent, October 1981

Vollmer, Rudolf
US Patent Document 4,294,402
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Temperature-actuated valve assembly
patent, December 2010

Franconi, Robert
US Patent Document 7,845,575
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7845575

Temperature-responsive fluid flow control apparatus
patent, October 2013

Jung, Jaeyoung
US Patent Document 8,561,914
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8561914

Variable area refrigerant expansion device for heating mode of a heat pump
patent, March 1991

Reedy, Wayne R.; Drucker, Alan S.
US Patent Document 5,002,089
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5002089

Vacuum actuated valve for high capacity storage and delivery systems
patent, March 2011

Campeau, Serge M.
US Patent Document 7,905,247
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7905247

Method Compositions and Kit for Coloring Hair
patent-application, August 2008

Vena, Lou Ann Christine; Narasimhan, Saroja; Moore, Maxine Gayle
US Patent Application 12/030030; 20080196733
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Similar Records

Title: Inadvertent actuation block valve for a small modular nuclear reactor

Abstract

Citation Formats

Fluid Pressure Regulator patent, April 1946

Passive, double acting, vacuum actuated vent valve patent, November 2007

Pressure Relief Device patent, January 1956

Compound Pressure Regulating System for Refrigeration patent, June 1962

Hydraulic disconnector patent, November 1994

Nonchattering Pressure Relief Valve patent, November 1971

Valve and Fuel Supply System patent-application, January 2005

Pressure Independent Control Valve patent-application, February 2005

Thermal Bypass Valve with Bimetallic Control patent, January 1967

Valve Device patent, June 1940

Pressure switching valve device patent, January 1978

Control devices for heaters patent, October 1981

Temperature-actuated valve assembly patent, December 2010

Temperature-responsive fluid flow control apparatus patent, October 2013

Variable area refrigerant expansion device for heating mode of a heat pump patent, March 1991

Vacuum actuated valve for high capacity storage and delivery systems patent, March 2011

Method Compositions and Kit for Coloring Hair patent-application, August 2008

Fluid Pressure Regulator
patent, April 1946

Passive, double acting, vacuum actuated vent valve
patent, November 2007

Pressure Relief Device
patent, January 1956

Compound Pressure Regulating System for Refrigeration
patent, June 1962

Hydraulic disconnector
patent, November 1994

Nonchattering Pressure Relief Valve
patent, November 1971

Valve and Fuel Supply System
patent-application, January 2005

Pressure Independent Control Valve
patent-application, February 2005

Thermal Bypass Valve with Bimetallic Control
patent, January 1967

Valve Device
patent, June 1940

Pressure switching valve device
patent, January 1978

Control devices for heaters
patent, October 1981

Temperature-actuated valve assembly
patent, December 2010

Temperature-responsive fluid flow control apparatus
patent, October 2013

Variable area refrigerant expansion device for heating mode of a heat pump
patent, March 1991

Vacuum actuated valve for high capacity storage and delivery systems
patent, March 2011

Method Compositions and Kit for Coloring Hair
patent-application, August 2008