JPS57210106A - Controller for turbine - Google Patents

Controller for turbine

Info

Publication number
JPS57210106A
JPS57210106A JP9225981A JP9225981A JPS57210106A JP S57210106 A JPS57210106 A JP S57210106A JP 9225981 A JP9225981 A JP 9225981A JP 9225981 A JP9225981 A JP 9225981A JP S57210106 A JPS57210106 A JP S57210106A
Authority
JP
Japan
Prior art keywords
valve
regulating valve
turbine
flow rate
intercept
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
JP9225981A
Other languages
Japanese (ja)
Other versions
JPH0128202B2 (en
Inventor
Tadahiko Iijima
Naganobu Honda
Hidesumi Kuwajima
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 Ltd
Original Assignee
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 Ltd filed Critical Hitachi Ltd
Priority to JP9225981A priority Critical patent/JPS57210106A/en
Publication of JPS57210106A publication Critical patent/JPS57210106A/en
Publication of JPH0128202B2 publication Critical patent/JPH0128202B2/ja
Granted 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/08—Cooling; Heating; Heat-insulation
    • F01D25/12—Cooling

Landscapes

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

Abstract

PURPOSE:To prevent abnormal heating from being caused by windage loss in a thermal power plant with a turbine by-pass line, by detecting the closed state of a ventilator valve at the time of joint operation after the starting of a turbine to forcedly set a regulating valve at a degree of opening not lower than a prescribed level, at the initial stage of the opening of the valve. CONSTITUTION:Steam generated by a boiler 1 flows into a high-pressure turbine 3 through a regulating valve 2 and performs work. The steam is thereafter supplied to a medium-pressure turbine 6 and a low-pressure turbine 7 through a reheater 4 and an intercept valve 5. At the time of shifting from the turbine starting to initial loaded operation, a steam flow rate signal 16 is processed through a regulating valve flow rate section 17 and an intercept valve flow rate section 18 to control the regulating valve 2 and the intercept valve 5. When a contact 20 is turned on by the closure of a ventilator valve 12, a minimum regulating valve opening degree bias 21 is applied to a higher level selection circuit 19 to open the regulating valve 2 stepwise and keep it at the minimum degree of opneing until the output of the regulating valve flow rate section 17 becomes higher than the bias.
JP9225981A 1981-06-17 1981-06-17 Controller for turbine Granted JPS57210106A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9225981A JPS57210106A (en) 1981-06-17 1981-06-17 Controller for turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9225981A JPS57210106A (en) 1981-06-17 1981-06-17 Controller for turbine

Publications (2)

Publication Number Publication Date
JPS57210106A true JPS57210106A (en) 1982-12-23
JPH0128202B2 JPH0128202B2 (en) 1989-06-01

Family

ID=14049407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9225981A Granted JPS57210106A (en) 1981-06-17 1981-06-17 Controller for turbine

Country Status (1)

Country Link
JP (1) JPS57210106A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6116210A (en) * 1984-07-04 1986-01-24 Hitachi Ltd Method and device of operating steam turbine
JPS6165003A (en) * 1984-09-04 1986-04-03 Hitachi Ltd Controlling method for turbine in intermediate pressure starting

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6116210A (en) * 1984-07-04 1986-01-24 Hitachi Ltd Method and device of operating steam turbine
JPH0336123B2 (en) * 1984-07-04 1991-05-30 Hitachi Ltd
JPS6165003A (en) * 1984-09-04 1986-04-03 Hitachi Ltd Controlling method for turbine in intermediate pressure starting

Also Published As

Publication number Publication date
JPH0128202B2 (en) 1989-06-01

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