GB1308829A - Flame monitoring equipment - Google Patents

Flame monitoring equipment

Info

Publication number
GB1308829A
GB1308829A GB1308829DA GB1308829A GB 1308829 A GB1308829 A GB 1308829A GB 1308829D A GB1308829D A GB 1308829DA GB 1308829 A GB1308829 A GB 1308829A
Authority
GB
United Kingdom
Prior art keywords
flame
photo
monitor
electric
filter
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
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.)
PEAK TECHNOLOGIES Ltd
Original Assignee
PEAK TECHNOLOGIES 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 PEAK TECHNOLOGIES Ltd filed Critical PEAK TECHNOLOGIES Ltd
Publication of GB1308829A publication Critical patent/GB1308829A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M11/00—Safety arrangements
    • F23M11/04—Means for supervising combustion, e.g. windows
    • F23M11/045—Means for supervising combustion, e.g. windows by observing the flame
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
    • F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

1308829 Photo-electric flame monitor PEAK TECHNOLOGIES Ltd 2 Sept 1971 [18 June 1970] 29681/70 Heading G1A A photo-electric flame monitor comprises a photo-electric sensor viewing the flame through a filter, the transmission characteristics of the filter and the spectral sensitivity of the sensor defining a range of wavelengths which includes characteristic wavelengths in the flame produced by each of two fuels, so that the monitor may be used when a furnace is operated using either fuel. In Fig. 2, light from a flame passes through lens 26, via nickel oxide filter 29, which defines one end of the range by cutting out all light above about 0À4Á, to the cadmium-antimony cathode of phototube 31, the spectral sensitivity of which cuts off at about 0À3Á. The sensitive range of the instrument thus includes the 0À32Á peaks of gas, coal and oil flames. The photo-tube is connected to a Darlington pan transistor amplifier, connected to alarm circuitry. This may include the frequency sensitive circuit used in Specification 1214521 so that only high frequency flame fluctuations are effective. For gas flames, a frequency of 250 Hz and for coal and oil 1500 Hz is considered. The monitor may be provided with an extra broad band electric lamp in the sighting tube for checking the alarm facility.
GB1308829D 1970-06-18 1970-06-18 Flame monitoring equipment Expired GB1308829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2968170 1970-06-18

Publications (1)

Publication Number Publication Date
GB1308829A true GB1308829A (en) 1973-03-07

Family

ID=10295404

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1308829D Expired GB1308829A (en) 1970-06-18 1970-06-18 Flame monitoring equipment

Country Status (1)

Country Link
GB (1) GB1308829A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132342A (en) * 1982-12-14 1984-07-04 Land Combustion Ltd Discrimination between flames of different fuels
CN102506443A (en) * 2011-09-28 2012-06-20 南京创能电力科技开发有限公司 Image flame detecting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132342A (en) * 1982-12-14 1984-07-04 Land Combustion Ltd Discrimination between flames of different fuels
CN102506443A (en) * 2011-09-28 2012-06-20 南京创能电力科技开发有限公司 Image flame detecting device

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Legal Events

Date Code Title Description
PS Patent sealed