JPS5790719A - Control method of steam temperature - Google Patents

Control method of steam temperature

Info

Publication number
JPS5790719A
JPS5790719A JP16676280A JP16676280A JPS5790719A JP S5790719 A JPS5790719 A JP S5790719A JP 16676280 A JP16676280 A JP 16676280A JP 16676280 A JP16676280 A JP 16676280A JP S5790719 A JPS5790719 A JP S5790719A
Authority
JP
Japan
Prior art keywords
valve
steam temperature
opening
steam
prescribed level
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
JP16676280A
Other languages
Japanese (ja)
Inventor
Shigeo Aoki
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 JP16676280A priority Critical patent/JPS5790719A/en
Publication of JPS5790719A publication Critical patent/JPS5790719A/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
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
    • F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
    • F01D17/24—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical electrical

Landscapes

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

Abstract

PURPOSE:To control the steam temperature, by controlling the opening between an outlet drain valve and an inlet drain valve of a steam generator based on the deviation of the steam temperature between the outlet of the steam generator and the inlet of a steam turbine. CONSTITUTION:The opening of an output drain valve 9 of an overheater 3 is decided by using the deviation DELTAt between the steam temperature T2 at the inlet of a turbine 5 and the steam temperature T1 at the outlet of the heater 3 as a parameter. The valve 9 is operated in the opening direction by an arithmetic controller 11 in the case of DELTAt>0, and the control is carried out based on a program so that an opening corresponding to a valve 10 is obtained when the pressure of a drum (not shown in the diagram) is attained higher than a prescribed level. In the case of DELTAT<0, the valve 9 is not operated until the drum pressure becomes higher than the prescribed level, and the programmed control is carried out by the controller 11 to obtain an opening corresponding to that of the valve 10 after the drum pressure is attained higher than the prescribed level. For the programmed control given when the drum pressure becomes higher than the prescribed level, a prescribed increase factor of temperature is secured by simultaneously controlling both valves in the opening direction.
JP16676280A 1980-11-28 1980-11-28 Control method of steam temperature Pending JPS5790719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16676280A JPS5790719A (en) 1980-11-28 1980-11-28 Control method of steam temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16676280A JPS5790719A (en) 1980-11-28 1980-11-28 Control method of steam temperature

Publications (1)

Publication Number Publication Date
JPS5790719A true JPS5790719A (en) 1982-06-05

Family

ID=15837234

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16676280A Pending JPS5790719A (en) 1980-11-28 1980-11-28 Control method of steam temperature

Country Status (1)

Country Link
JP (1) JPS5790719A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103573304A (en) * 2013-11-12 2014-02-12 中国电力工程顾问集团西南电力设计院 Thermal power plant generator set adopting superheat to control drain valve on reheat steam pipeline
CN103573303A (en) * 2013-11-12 2014-02-12 中国电力工程顾问集团西南电力设计院 Thermal power plant generator set adopting superheat to control drain valve on main steam pipeline
CN110822285A (en) * 2019-11-15 2020-02-21 龙岩烟草工业有限责任公司 Vapor delivery system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103573304A (en) * 2013-11-12 2014-02-12 中国电力工程顾问集团西南电力设计院 Thermal power plant generator set adopting superheat to control drain valve on reheat steam pipeline
CN103573303A (en) * 2013-11-12 2014-02-12 中国电力工程顾问集团西南电力设计院 Thermal power plant generator set adopting superheat to control drain valve on main steam pipeline
CN110822285A (en) * 2019-11-15 2020-02-21 龙岩烟草工业有限责任公司 Vapor delivery system and method

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