ES2026076A6 - Diagnostic system and method of evaluating performance of valve in steam turbine-system - Google Patents

Diagnostic system and method of evaluating performance of valve in steam turbine-system

Info

Publication number
ES2026076A6
ES2026076A6 ES9100184A ES9100184A ES2026076A6 ES 2026076 A6 ES2026076 A6 ES 2026076A6 ES 9100184 A ES9100184 A ES 9100184A ES 9100184 A ES9100184 A ES 9100184A ES 2026076 A6 ES2026076 A6 ES 2026076A6
Authority
ES
Spain
Prior art keywords
valve
check valve
shaft
comparing
water heater
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES9100184A
Other languages
Spanish (es)
Inventor
Serge Peter Barton
David Bruce Berrong
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ES2026076A6 publication Critical patent/ES2026076A6/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
    • F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
    • F01D17/24—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical electrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/003—Arrangements for testing or measuring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Turbines (AREA)

Abstract

PURPOSE: To diagnose the performance of a valve component by including a means of comparing the position of a shaft with a prescribed position, comparing the angular position changing rate of a shaft for discriminating fluctuations according to the characteristics of a check valve, and providing a status report indicating the working condition of the check valve through a computer means. CONSTITUTION: A valve 10 is disposed between an isolation valve 94 and a feed water heater 96. The isolation valve 94 and a check valve 10 are placed at an extraction steam pipe 98 where a steam turbine 99 is connected to the feed water heater 96. During the ordinary operation of a turbine, the isolation valve 94 and the check valve 10 are in the full-open condition, thereby permitting extracted steam to flow into the feed water heater 96. The first sensor senses the rotational position of the shaft of the check valve 10 and the second sensor senses the prescribed condition of the isolation valve 94 for outputting signals. Computers 66/68 compares a shaft position with a prescribed one, discriminates fluctuations of the check valve 10 by comparing the changing rate, and indicates the status report of the check valve 10, thus it is possible to diagnose the performance of valve components.
ES9100184A 1990-01-25 1991-01-24 Diagnostic system and method of evaluating performance of valve in steam turbine-system Expired - Lifetime ES2026076A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46997490A 1990-01-25 1990-01-25

Publications (1)

Publication Number Publication Date
ES2026076A6 true ES2026076A6 (en) 1992-04-01

Family

ID=23865776

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9100184A Expired - Lifetime ES2026076A6 (en) 1990-01-25 1991-01-24 Diagnostic system and method of evaluating performance of valve in steam turbine-system

Country Status (6)

Country Link
JP (1) JPH0771206A (en)
KR (1) KR0152445B1 (en)
CN (1) CN1053660A (en)
CA (1) CA2034844A1 (en)
ES (1) ES2026076A6 (en)
IT (1) IT1245113B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006079294A1 (en) * 2005-01-25 2006-08-03 Daniel Aguilar Arrieta Inclined valve with forced rotation (valforzo)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100336210B1 (en) * 1999-12-29 2002-05-10 김형국 Diagnostic circuit for power plant valves in operating
FI120375B (en) * 2008-05-29 2009-09-30 Abb Oy Method and apparatus for verifying a leak in connection with a flow prevention device
JP5595306B2 (en) * 2011-02-25 2014-09-24 三菱重工コンプレッサ株式会社 Steam turbine operation control device and operation control method
GB201109290D0 (en) 2011-06-02 2011-07-20 Linde Ag A flow apparatus and monitoring system relating thereto
CN102721541B (en) * 2012-07-02 2015-10-28 山东电力集团公司电力科学研究院 Steam extraction check valve of steam turbine shut-in time method of testing
EP2918792A1 (en) * 2014-03-13 2015-09-16 Siemens Aktiengesellschaft Steam power plant with spindle leakage steam conduit
US10626749B2 (en) * 2016-08-31 2020-04-21 General Electric Technology Gmbh Spindle vibration evaluation module for a valve and actuator monitoring system
CN110023660B (en) * 2016-12-02 2021-12-21 应用材料公司 Low particle protected flapper valve
CN110005484B (en) * 2019-03-07 2021-10-15 大唐东营发电有限公司 Horizontal steam turbine low pressure heater
CN110307389B (en) * 2019-06-28 2020-12-18 国网浙江省电力有限公司电力科学研究院 Steam turbine hydraulic valve fault diagnosis method based on state feedback
CN110645057B (en) * 2019-09-29 2022-06-10 大唐东营发电有限公司 Monitoring equipment for adjusting door based on steam turbine of power plant
CN113465825B (en) * 2021-06-29 2024-07-05 西安热工研究院有限公司 Logic control method for tightness test of coaxial steam turbine valve of circulating unit
CN114354177B (en) * 2021-12-10 2024-03-12 国电长源汉川第一发电有限公司 Automatic test system and method for steam extraction check valve of steam turbine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006079294A1 (en) * 2005-01-25 2006-08-03 Daniel Aguilar Arrieta Inclined valve with forced rotation (valforzo)

Also Published As

Publication number Publication date
JPH0771206A (en) 1995-03-14
ITMI910168A0 (en) 1991-01-24
KR910014588A (en) 1991-08-31
ITMI910168A1 (en) 1992-07-24
CN1053660A (en) 1991-08-07
CA2034844A1 (en) 1991-07-26
KR0152445B1 (en) 1998-10-01
IT1245113B (en) 1994-09-13

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20040916