JPS57129207A - Controlling device of steam turbine - Google Patents

Controlling device of steam turbine

Info

Publication number
JPS57129207A
JPS57129207A JP1495381A JP1495381A JPS57129207A JP S57129207 A JPS57129207 A JP S57129207A JP 1495381 A JP1495381 A JP 1495381A JP 1495381 A JP1495381 A JP 1495381A JP S57129207 A JPS57129207 A JP S57129207A
Authority
JP
Japan
Prior art keywords
opening
control valve
cooling water
steam
degree
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
JP1495381A
Other languages
Japanese (ja)
Inventor
Hiroyuki Asano
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 JP1495381A priority Critical patent/JPS57129207A/en
Publication of JPS57129207A publication Critical patent/JPS57129207A/en
Pending 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
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
    • F01K9/04—Plants characterised by condensers arranged or modified to co-operate with the engines with dump valves to by-pass stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)

Abstract

PURPOSE:To prevent the wall surface of a desuperheater from being erroded, by generating a signal from degree of opening of a steam control valve to transmit a signal for degree of opening of a cooling water control valve which gives cooling water by a volume required for making steam passing a by-pass valve at the time of full load shut off. CONSTITUTION:A signal 14 for degree of opening of a steam control valve 3 is transmitted to an opening device 15 of a cooling water control valve 12. At the opening control device 15, a volume of passing steam proportionate to then opening of the steam control valve 3 is calculated. This value is to become the volume of steam passing a by-pass valve 9 at the time of full load shut off. Further, by this opening control device 15, a required opening of the cooling water control valve is calculated from the volume of steam passing the by-pass valve 9, and an opening of the cooling water control valve is set. When a signal 13 for opening degree is put in from the by-pass valve 9, the cooling water control valve 12 is to allow cooling water to flow by the degree of opening set in accordance with the opening of the steam control valve 3. And therefore, volume of waste water to be sent into a steam condenser 6 due to surplus cooling water is reduced, and as a result, occurrence of errosion is prevented.
JP1495381A 1981-02-05 1981-02-05 Controlling device of steam turbine Pending JPS57129207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1495381A JPS57129207A (en) 1981-02-05 1981-02-05 Controlling device of steam turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1495381A JPS57129207A (en) 1981-02-05 1981-02-05 Controlling device of steam turbine

Publications (1)

Publication Number Publication Date
JPS57129207A true JPS57129207A (en) 1982-08-11

Family

ID=11875333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1495381A Pending JPS57129207A (en) 1981-02-05 1981-02-05 Controlling device of steam turbine

Country Status (1)

Country Link
JP (1) JPS57129207A (en)

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