JPS6477704A - Steam valve malfunction detector - Google Patents

Steam valve malfunction detector

Info

Publication number
JPS6477704A
JPS6477704A JP23459287A JP23459287A JPS6477704A JP S6477704 A JPS6477704 A JP S6477704A JP 23459287 A JP23459287 A JP 23459287A JP 23459287 A JP23459287 A JP 23459287A JP S6477704 A JPS6477704 A JP S6477704A
Authority
JP
Japan
Prior art keywords
turbine
arithmetic unit
main steam
valve
theoretical
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.)
Pending
Application number
JP23459287A
Other languages
Japanese (ja)
Inventor
Tokuki Ishizuka
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP23459287A priority Critical patent/JPS6477704A/en
Publication of JPS6477704A publication Critical patent/JPS6477704A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Turbines (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)

Abstract

PURPOSE:To enhance safety of operation by computing a theoretical output value from a turbine according to the pressure/temperature of main steam and the lift of a sub-valve, and detecting corrosion on the valve element of the sub-valve according to the comparison between the theoretical and an actual output value. CONSTITUTION:A turbine 6 connected to a generator 7 and a condenser 9 equipped with a cooling system 8 are connected to the downstream side from a boiler 1 so as to form a close loop. In the aforesaid constitution, a pressure/ temperature detector 12 is placed between a strainer 3 and a main steam stop valve 4 in a main steam pipe 2. At the same time, the main steam stop valve 4 is provided with a lift detector 13, and detection signals 20, 21 are respectively input to a turbine theoretical output arithmetic unit 14. Also, a turbine theoretical output signal 18 from said arithmetic unit 14 is input to an output comparison arithmetic unit 15 together with a detection signal 19 from a turbine output detector 16. Then said arithmetic unit 15 compares respective signals 18, 19, with each other and when predetermined conditions are satisfied, an alarm 17 is given.
JP23459287A 1987-09-18 1987-09-18 Steam valve malfunction detector Pending JPS6477704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23459287A JPS6477704A (en) 1987-09-18 1987-09-18 Steam valve malfunction detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23459287A JPS6477704A (en) 1987-09-18 1987-09-18 Steam valve malfunction detector

Publications (1)

Publication Number Publication Date
JPS6477704A true JPS6477704A (en) 1989-03-23

Family

ID=16973443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23459287A Pending JPS6477704A (en) 1987-09-18 1987-09-18 Steam valve malfunction detector

Country Status (1)

Country Link
JP (1) JPS6477704A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006280535A (en) * 2005-03-31 2006-10-19 Fujinon Corp Portable endoscope
JP2015523529A (en) * 2012-08-03 2015-08-13 ゼネラル・エレクトリック・カンパニイ Apparatus for monitoring a valve and method of operating the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006280535A (en) * 2005-03-31 2006-10-19 Fujinon Corp Portable endoscope
JP2015523529A (en) * 2012-08-03 2015-08-13 ゼネラル・エレクトリック・カンパニイ Apparatus for monitoring a valve and method of operating the same

Similar Documents

Publication Publication Date Title
GB1528596A (en) Fluid flow control systems
KR830004518A (en) Turbine control system
EP0143636A3 (en) Steam boiler
JPS55123345A (en) Exhaust gas reflux apparatus
JPS57210116A (en) Exhaust gas purifier
JPS57116109A (en) Monitoring and controlling device for condensing turbine
US4583369A (en) System for detecting tubing rupture in feedwater heaters of steam power plant
JPS55151195A (en) System for preventing surging of fan or compressor
JPS6472096A (en) Steam generator plant
JPS57115679A (en) Adjusting device of degree of vacuum in condenser
JPS5471202A (en) Automatic control device for boiler feed water pump of boiler
SU765596A1 (en) Arrangement for monitoring tube bursts in steam generators
JPS5788210A (en) Controlling method of degree of superheat on working medium for turbine
JPS6487806A (en) Steam turbine protector
JPS54114630A (en) Safety operation device of gas turbine
JPS5692307A (en) Turbine controlling system
JPS57195805A (en) Load controller
JPS5585239A (en) Abnormality detector for pressure feed pipe
JPS5685506A (en) Monitoring method of performance of steam turbine plant
JPS5547427A (en) Instrumentation with escape safety valve
JPS5544602A (en) Gate opening data check method
JPS55162000A (en) Method of operating multistage steam ejector
JPS5632009A (en) Control system for steam turbine
JPS55119903A (en) Steam turbine protective device
JPS5788208A (en) Running method of turbine generator plant