GB1094027A - Microwave sensing apparatus and method for burner control - Google Patents

Microwave sensing apparatus and method for burner control

Info

Publication number
GB1094027A
GB1094027A GB40912/66A GB4091266A GB1094027A GB 1094027 A GB1094027 A GB 1094027A GB 40912/66 A GB40912/66 A GB 40912/66A GB 4091266 A GB4091266 A GB 4091266A GB 1094027 A GB1094027 A GB 1094027A
Authority
GB
United Kingdom
Prior art keywords
switch
signal
air
fuel
burners
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
GB40912/66A
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering 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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB1094027A publication Critical patent/GB1094027A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G05D11/135—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/60—Devices for simultaneous control of gas and combustion air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2237/00—Controlling
    • F23N2237/02—Controlling two or more burners

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Control Of Combustion (AREA)
  • Regulation And Control Of Combustion (AREA)

Abstract

1,094,027. Automatic control of air/fuel ratio. ESSO RESEARCH & ENGINEERING CO. Sept.13, 1966 [Oct.1, 1965j, No.40912/66. Heading G3R. [Also in Division F4] In a method of monitoring the fuel-air ratio of the flame of burners in an industrial furnace by directing a beam of attenuated microwaves through the flame and measuring the loss of microwave energy, microwaves in the range of 30 to 300 megacycles per second generated by a Klystron 3 are passed by connector 4 to isolator 5 and then to attenuator 7 and to a switch S1 which is timed to direct the signal for a fraction of a second to each of antennas 12, 13, 14 and then to repeat the cycle. Antennas 18, 19, 20 receive the signal through the flames 15, 16, 17, of burners A, B, C directly or via a reflector and pass it via a switch S2 synchronized with switch S1 to a detector 25 and via an amplifier 28 to an error amplifier 30 where it is matched against the command received from the attenuator via conductor 31 and to a servo device 33 linked to a visual indicator 36 containing a differential measuring circuit and a corrective signal is passed to the burner via line 37 and switch S3 which is synchronized with switch S2. The signal is transmitted to air regulators 41, 42, 43 supplying primary air to the burners and operated by electric motor valves or any other type of automatic valve to adjust the fuel-air ratio, the fuel supply rate being constant.
GB40912/66A 1965-10-01 1966-09-13 Microwave sensing apparatus and method for burner control Expired GB1094027A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US492161A US3292855A (en) 1965-10-01 1965-10-01 Microwave sensing apparatus and method for burner control

Publications (1)

Publication Number Publication Date
GB1094027A true GB1094027A (en) 1967-12-06

Family

ID=23955180

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40912/66A Expired GB1094027A (en) 1965-10-01 1966-09-13 Microwave sensing apparatus and method for burner control

Country Status (3)

Country Link
US (1) US3292855A (en)
DE (1) DE1526224A1 (en)
GB (1) GB1094027A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1288824A (en) * 1970-05-06 1972-09-13
FR2187094A5 (en) * 1972-05-31 1974-01-11 Guigues Frederi
FR2201399B1 (en) * 1972-09-22 1976-01-23 Snecma Fr
US4043742A (en) * 1976-05-17 1977-08-23 Environmental Data Corporation Automatic burner monitor and control for furnaces
US4477245A (en) * 1982-09-03 1984-10-16 The Babcock & Wilcox Company Flame monitoring safety, energy and fuel conservation system
US4586945A (en) * 1984-09-21 1986-05-06 Rca Corporation Dual control burner manifold for CRT production
DE4302531A1 (en) * 1993-01-29 1994-08-04 Telefunken Microelectron Flame monitoring device
DE4426280A1 (en) * 1994-07-25 1996-02-01 Reich Ernst Measuring concentration of solid particles in gas esp. for controlling administration of coal dust in coal-powered power station
KR19990053716A (en) * 1997-12-24 1999-07-15 전주범 Air volume control method in the forward wind of gas boiler
AU740219B2 (en) * 1998-01-30 2001-11-01 Siemens Aktiengesellschaft Method and apparatus for operating a combustion plant
US8070482B2 (en) * 2007-06-14 2011-12-06 Universidad de Concepción Combustion control system of detection and analysis of gas or fuel oil flames using optical devices
GB0917879D0 (en) * 2009-10-13 2009-11-25 Airbus Uk Ltd Aircraft fuel system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2324821A (en) * 1939-02-08 1943-07-20 Gen Electric Measuring and control method and apparatus
US2306073A (en) * 1939-12-08 1942-12-22 Photoswitch Inc Photoelectric control of heating equipment
US2600928A (en) * 1948-11-30 1952-06-17 Wheelco Instr Company Flame detector
GB695863A (en) * 1949-08-31 1953-08-19 W H Sanders Electronics Ltd Improvements in or relating to protection apparatus for controlling the supply of fuel to furnaces fired by means of liquid or gaseous fuels
US3216661A (en) * 1961-10-10 1965-11-09 George K Mckenzie Combustion control apparatus

Also Published As

Publication number Publication date
US3292855A (en) 1966-12-20
DE1526224A1 (en) 1970-01-29

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