JPS56135703A - Controlling method for turbine bypass - Google Patents

Controlling method for turbine bypass

Info

Publication number
JPS56135703A
JPS56135703A JP3742880A JP3742880A JPS56135703A JP S56135703 A JPS56135703 A JP S56135703A JP 3742880 A JP3742880 A JP 3742880A JP 3742880 A JP3742880 A JP 3742880A JP S56135703 A JPS56135703 A JP S56135703A
Authority
JP
Japan
Prior art keywords
turbine
opening
signal
pressure
valve
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
JP3742880A
Other languages
Japanese (ja)
Inventor
Yoshihei Okayasu
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.)
Hitachi Engineering Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Engineering Co Ltd
Hitachi Ltd
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 Hitachi Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Engineering Co Ltd
Priority to JP3742880A priority Critical patent/JPS56135703A/en
Publication of JPS56135703A publication Critical patent/JPS56135703A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To lessen the pressure given to the apparatus to follow and the fluctuation of temperature at the time of a sudden stop of the turbine by providing a turbine bypass valve whose opening is set on the basis of an adjusting valve opening signal and an extraction or exhaust pressure signal.
CONSTITUTION: A signal 20 for opening of the turbine bypass valve 7 equivalent to the flow rate passing the turbine is set by a converter 15 for the opening of an adjusting valve and by an opening-function generator 16. A pressure signal 27 is set by an extraction or exhaust pressure converter 25 and by a pressure adjusting meter 26. At the time of a trip of the turbine, a quick-open cutoff valve 6 is opened, the opening signal 20 and the pressure signal 27 are selected by a high-value selector 28, and the turbine bypass valve 7 is controlled by being switched more smoothly from the opening signal 20 to the pressure signal. An attemperator 8 reduces the temperature of bypass steam and renders the same to the following apparatuses. In this way, no fluctuation of presure and temperature is given to the following apparatuses at the time of the trip of the turbine.
COPYRIGHT: (C)1981,JPO&Japio
JP3742880A 1980-03-26 1980-03-26 Controlling method for turbine bypass Pending JPS56135703A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3742880A JPS56135703A (en) 1980-03-26 1980-03-26 Controlling method for turbine bypass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3742880A JPS56135703A (en) 1980-03-26 1980-03-26 Controlling method for turbine bypass

Publications (1)

Publication Number Publication Date
JPS56135703A true JPS56135703A (en) 1981-10-23

Family

ID=12497234

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3742880A Pending JPS56135703A (en) 1980-03-26 1980-03-26 Controlling method for turbine bypass

Country Status (1)

Country Link
JP (1) JPS56135703A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04100004U (en) * 1991-02-04 1992-08-28
JP2013124560A (en) * 2011-12-13 2013-06-24 Jfe Steel Corp Turbine bypass device and turbine bypass control method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04100004U (en) * 1991-02-04 1992-08-28
JP2013124560A (en) * 2011-12-13 2013-06-24 Jfe Steel Corp Turbine bypass device and turbine bypass control method

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