JPS5632009A - Control system for steam turbine - Google Patents

Control system for steam turbine

Info

Publication number
JPS5632009A
JPS5632009A JP10777479A JP10777479A JPS5632009A JP S5632009 A JPS5632009 A JP S5632009A JP 10777479 A JP10777479 A JP 10777479A JP 10777479 A JP10777479 A JP 10777479A JP S5632009 A JPS5632009 A JP S5632009A
Authority
JP
Japan
Prior art keywords
steam
steam turbine
pressure
inlet
turbine
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.)
Granted
Application number
JP10777479A
Other languages
Japanese (ja)
Other versions
JPS623283B2 (en
Inventor
Hiroya Sato
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
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10777479A priority Critical patent/JPS5632009A/en
Publication of JPS5632009A publication Critical patent/JPS5632009A/en
Publication of JPS623283B2 publication Critical patent/JPS623283B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Turbines (AREA)

Abstract

PURPOSE: To preclude a cool air from flowing into a turbine by a method wherein a follow-up signal produced from an output of the steam turbine and an inlet steam pressure is operated only when a pressure fluctuation is large and thereby a steam regulating valve is choked, in the steam turbine operated under a pressure changing operation.
CONSTITUTION: An opening of a steam regulating valve is determined by an inlet steam pressure detector 28 for a steam turbine 4 and a pressure detector 30 for the first stage of the steam turbine. Said opening compares a signal of a load limitter 15 in an adder 34 through an adder 43. When a fluctuation in the inlet steam pressure is large, a relay circuit 42 is actuated to close a contact 42A and a new load limitting signal, i.e. an output signal of the adder 43, throttles the steam regulating valve 3 through a low value preference circuit 44. Thereby, the variation of the inlet pressure of the steam turbine is restricted and inflow of a cool air into the steam turbine can be prevented.
COPYRIGHT: (C)1981,JPO&Japio
JP10777479A 1979-08-24 1979-08-24 Control system for steam turbine Granted JPS5632009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10777479A JPS5632009A (en) 1979-08-24 1979-08-24 Control system for steam turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10777479A JPS5632009A (en) 1979-08-24 1979-08-24 Control system for steam turbine

Publications (2)

Publication Number Publication Date
JPS5632009A true JPS5632009A (en) 1981-04-01
JPS623283B2 JPS623283B2 (en) 1987-01-24

Family

ID=14467666

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10777479A Granted JPS5632009A (en) 1979-08-24 1979-08-24 Control system for steam turbine

Country Status (1)

Country Link
JP (1) JPS5632009A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60259709A (en) * 1984-06-05 1985-12-21 Mitsubishi Electric Corp Control unit for steam turbine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6423297B2 (en) 2015-03-20 2018-11-14 千代田化工建設株式会社 BOG processing equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60259709A (en) * 1984-06-05 1985-12-21 Mitsubishi Electric Corp Control unit for steam turbine

Also Published As

Publication number Publication date
JPS623283B2 (en) 1987-01-24

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