GB1235854A - A method and device for combustion control - Google Patents

A method and device for combustion control

Info

Publication number
GB1235854A
GB1235854A GB3813767A GB3813767A GB1235854A GB 1235854 A GB1235854 A GB 1235854A GB 3813767 A GB3813767 A GB 3813767A GB 3813767 A GB3813767 A GB 3813767A GB 1235854 A GB1235854 A GB 1235854A
Authority
GB
United Kingdom
Prior art keywords
tube
photo
degree
density
light beam
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
GB3813767A
Inventor
Frank Kershaw
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.)
Kershaw & Partner Electronics
Associated British Combustion Ltd
Original Assignee
Kershaw & Partner Electronics
Associated British Combustion 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 Kershaw & Partner Electronics, Associated British Combustion Ltd filed Critical Kershaw & Partner Electronics
Priority to GB3813767A priority Critical patent/GB1235854A/en
Priority to DE19681798078 priority patent/DE1798078A1/en
Publication of GB1235854A publication Critical patent/GB1235854A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1,235,854. 854. Photo-electric smoke monitoring. ASSOCIATED BRITISH COMBUSTION Ltd. and F. KERSHAW & PARTNER (ELECTRONICS) Ltd. Aug.15, 1968 [Aug.18, 1967], No.38137/67. Heading G1A. [Also in Division G3] Combustion is controlled by altering the fuel/ air ratio in dependence on the density of black and white smoke in the exhaust, the density of white smoke being detected by measuring the degree of reflection of a light beam shone through the exhaust and the density of black or white smoke being detected by measuring the degree of obstruction of the light beam. As shown exhaust gases from a flue or stack are fed through inlet arms 2, 3 into opposite ends of a viewing tube 4 illuminated by a lamp and lens at one end. A photo-cell 8 at the opposite end of viewing tube 4 measures the degree of obstruction of the light beam and a photo-cell 9 in a lateral branch of tube 4 measures the degree of reflection, vanes 10 fitted along branch 5 of tube 4 forming a "Tyndall" tube which prevent reflection of light by the walls of tube 4. The signal from the two photo-cells is fed with a set point signal to a bridge and any out of balance drives an air supply motor through a servo-amplifier. The tube 4 may be purged by operating a solenoid valve 13 to admit clean air thereto so that the photoelectric detector may be reset to zero by the arrangement described in copending Specification 1, 209, 024.
GB3813767A 1967-08-18 1967-08-18 A method and device for combustion control Expired GB1235854A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3813767A GB1235854A (en) 1967-08-18 1967-08-18 A method and device for combustion control
DE19681798078 DE1798078A1 (en) 1967-08-18 1968-08-19 Method and device for controlling combustion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3813767A GB1235854A (en) 1967-08-18 1967-08-18 A method and device for combustion control

Publications (1)

Publication Number Publication Date
GB1235854A true GB1235854A (en) 1971-06-16

Family

ID=10401440

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3813767A Expired GB1235854A (en) 1967-08-18 1967-08-18 A method and device for combustion control

Country Status (2)

Country Link
DE (1) DE1798078A1 (en)
GB (1) GB1235854A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0441904A1 (en) * 1989-08-03 1991-08-21 Met One Inc Multiport parallel flow particle sensor.
EP0528802A1 (en) * 1990-05-07 1993-03-03 Met One Inc Split flow for uniform multisensor detection.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0441904A1 (en) * 1989-08-03 1991-08-21 Met One Inc Multiport parallel flow particle sensor.
EP0441904A4 (en) * 1989-08-03 1992-05-13 Met One, Inc. Multiport parallel flow particle sensor
EP0528802A1 (en) * 1990-05-07 1993-03-03 Met One Inc Split flow for uniform multisensor detection.
EP0528802A4 (en) * 1990-05-07 1993-07-28 Met One, Inc. Split flow for uniform multisensor detection

Also Published As

Publication number Publication date
DE1798078A1 (en) 1971-11-04

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