GB1415813A - Steam generators - Google Patents

Steam generators

Info

Publication number
GB1415813A
GB1415813A GB68374A GB68374A GB1415813A GB 1415813 A GB1415813 A GB 1415813A GB 68374 A GB68374 A GB 68374A GB 68374 A GB68374 A GB 68374A GB 1415813 A GB1415813 A GB 1415813A
Authority
GB
United Kingdom
Prior art keywords
burner
fuel
nozzle
probe
sound
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.)
Expired
Application number
GB68374A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1415813A publication Critical patent/GB1415813A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/16—Systems for controlling combustion using noise-sensitive detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Abstract

1415813 Controlling burners; boilers GENERAL ELECTRIC CO 7 Jan 1974 [29 Jan 1973] 683/74 Headings F4T and F4A In a steam generator, e.g. a marine boiler, having a plurality of burners receiving air from a common windbox 14, Fig. 2, via individual ducts 12 and ejecting combustion mixture through the ducts into a common firebox 13, each duct contains an adjustable air register 15, a fuel nozzle 17 and a directional electroacoustical probe 8 which monitors the sound from its associated burner. A relatively narrow frequency band of sound is selected wherein there exists a substantial decibel difference between flame and no-flame conditions of each burner and when the monitored sound level within that band falls below a selected threshold the fuel supply to the associated burner is shut off. This is achieved by supplying the probe signal through an amplifier (31), Fig. 3 (not shown), a band filter (32) to a threshold trigger (33) which controls a fuel shut-off valve (34). Liquid fuel and atomizing steam are fed to the nozzle 17. The probe may be water or air cooled. Most of the burner components are mounted in a removable insulated cover 9 in outer furnace wall 10. A rotatable lever 18 allows withdrawal of supply box 19 and nozzle 17 for cleaning. Swirl means 21 are provided.
GB68374A 1973-01-29 1974-01-07 Steam generators Expired GB1415813A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00327429A US3811816A (en) 1973-01-29 1973-01-29 Acoustic flame detectors for steam generators

Publications (1)

Publication Number Publication Date
GB1415813A true GB1415813A (en) 1975-11-26

Family

ID=23276508

Family Applications (1)

Application Number Title Priority Date Filing Date
GB68374A Expired GB1415813A (en) 1973-01-29 1974-01-07 Steam generators

Country Status (8)

Country Link
US (1) US3811816A (en)
JP (1) JPS49105236A (en)
DE (1) DE2403320A1 (en)
FR (1) FR2215583B1 (en)
GB (1) GB1415813A (en)
IT (1) IT1007064B (en)
NL (1) NL7400983A (en)
NO (1) NO139065C (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55110823A (en) * 1979-02-16 1980-08-26 Kobe Steel Ltd Controlling method of air ratio at combustion furnace
FR2490786A1 (en) * 1980-09-25 1982-03-26 Centre Nat Rech Scient METHOD FOR CONTROLLING A COMBUSTION FLAME AND MICROPHONE PROBE FOR ITS IMPLEMENTATION
US5120214A (en) * 1989-11-13 1992-06-09 Control Techtronics, Inc. Acoustical burner control system and method
EP0428373A3 (en) * 1989-11-13 1991-08-28 Control Techtronics, Inc. Acoustical burner control system and method
DE4040745A1 (en) * 1990-01-02 1991-07-04 Gen Electric ACTIVE CONTROL OF COMBUSTION-BASED INSTABILITIES
US5813849A (en) * 1996-08-07 1998-09-29 John Zink Company, A Division Of Koch-Glitshc, Inc. Flame detection apparatus and methods
WO1998034067A1 (en) * 1997-02-04 1998-08-06 Siemens Aktiengesellschaft Combustion device and method for actively damping combustion vibrations
EP0935098B2 (en) * 1998-02-04 2005-10-05 John Zink Company,L.L.C. Flame detection apparatus and method
US6164957A (en) * 1999-08-31 2000-12-26 Gte Internetworking Incorporated Transducer for gas flare pilot flame detection
US8752362B2 (en) * 2009-01-15 2014-06-17 General Electric Company Optical flame holding and flashback detection
US20110232296A1 (en) * 2010-03-24 2011-09-29 General Electric Company Optical fuel nozzle flashback detector
US9188330B1 (en) * 2011-03-16 2015-11-17 Astec, Inc. Apparatus and method for mixing tube assembly
US9506646B1 (en) * 2011-03-16 2016-11-29 Astec, Inc. Apparatus and method for linear mixing tube assembly
US20130040254A1 (en) * 2011-08-08 2013-02-14 General Electric Company System and method for monitoring a combustor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2767783A (en) * 1952-09-09 1956-10-23 Scully Signal Co Sonic control for burners
FR1177801A (en) * 1956-05-28 1959-04-29 Babcock & Wilcox France Improvements to flame control devices

Also Published As

Publication number Publication date
NL7400983A (en) 1974-07-31
FR2215583B1 (en) 1977-09-23
FR2215583A1 (en) 1974-08-23
JPS49105236A (en) 1974-10-04
US3811816A (en) 1974-05-21
DE2403320A1 (en) 1974-08-01
IT1007064B (en) 1976-10-30
NO139065B (en) 1978-09-18
NO139065C (en) 1978-12-27
NO740264L (en) 1974-07-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee