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JPS5564108A - Control system for water level in drum of composite cycle plant - Google Patents

Control system for water level in drum of composite cycle plant

Info

Publication number
JPS5564108A
JPS5564108A JP13795578A JP13795578A JPS5564108A JP S5564108 A JPS5564108 A JP S5564108A JP 13795578 A JP13795578 A JP 13795578A JP 13795578 A JP13795578 A JP 13795578A JP S5564108 A JPS5564108 A JP S5564108A
Authority
JP
Japan
Prior art keywords
drum
water
control
output
reducing 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.)
Granted
Application number
JP13795578A
Other languages
Japanese (ja)
Other versions
JPS6154123B2 (en
Inventor
Shozo Nakamura
Yoshihiro Uchiyama
Taiji Inui
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 JP13795578A priority Critical patent/JPS5564108A/en
Publication of JPS5564108A publication Critical patent/JPS5564108A/en
Publication of JPS6154123B2 publication Critical patent/JPS6154123B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]

Landscapes

  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

PURPOSE: To prevent water level in drum from rising extraordinarily when pressure in the drum is lowered abruptly, by effecting beforehand control to discharge water from the drum by opening a drum-water reducing valve when rate of pressure change and water level are both high.
CONSTITUTION: A composite cycle plant shown in the drawing comprises a suitable number of gas turbine units 1, the same number of waste heat recovering boilers 11 and one steam turbine unit 40. Control system for water supply system of the above plant is arranged to control water-supply control valve 13 by use of signals from water-level detector 51 of drum 16, means 52 for measuring flow rate of steam and means 53 for measuring flow rate of water. Here, said drum 16 is connected with a blow-down pipe 30 having drum-water reducing valve 31. In such an arrangement, the drum-water reducing valve 31 is controlled to open by control means 57 only when output of water-level detector 51 and output of means for calculating rate of change in pressure signal, i.e., output of pressure gauge 55 are both higher than respective set values.
COPYRIGHT: (C)1980,JPO&Japio
JP13795578A 1978-11-10 1978-11-10 Control system for water level in drum of composite cycle plant Granted JPS5564108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13795578A JPS5564108A (en) 1978-11-10 1978-11-10 Control system for water level in drum of composite cycle plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13795578A JPS5564108A (en) 1978-11-10 1978-11-10 Control system for water level in drum of composite cycle plant

Publications (2)

Publication Number Publication Date
JPS5564108A true JPS5564108A (en) 1980-05-14
JPS6154123B2 JPS6154123B2 (en) 1986-11-20

Family

ID=15210615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13795578A Granted JPS5564108A (en) 1978-11-10 1978-11-10 Control system for water level in drum of composite cycle plant

Country Status (1)

Country Link
JP (1) JPS5564108A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58137212U (en) * 1982-03-10 1983-09-14 バブコツク日立株式会社 Steam barrel water level control device for steam barrel boiler
JP2013527370A (en) * 2010-04-30 2013-06-27 シーメンス エナジー インコーポレイテッド Energy recovery and steam supply for increased power output in combined cycle power systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58137212U (en) * 1982-03-10 1983-09-14 バブコツク日立株式会社 Steam barrel water level control device for steam barrel boiler
JPS6335202Y2 (en) * 1982-03-10 1988-09-19
JP2013527370A (en) * 2010-04-30 2013-06-27 シーメンス エナジー インコーポレイテッド Energy recovery and steam supply for increased power output in combined cycle power systems

Also Published As

Publication number Publication date
JPS6154123B2 (en) 1986-11-20

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