FR2353803A1 - Charge temperature control for flow-through furnace - by optical pyrometers controlling burners with adjustable delay cutout - Google Patents

Charge temperature control for flow-through furnace - by optical pyrometers controlling burners with adjustable delay cutout

Info

Publication number
FR2353803A1
FR2353803A1 FR7715945A FR7715945A FR2353803A1 FR 2353803 A1 FR2353803 A1 FR 2353803A1 FR 7715945 A FR7715945 A FR 7715945A FR 7715945 A FR7715945 A FR 7715945A FR 2353803 A1 FR2353803 A1 FR 2353803A1
Authority
FR
France
Prior art keywords
adjustable delay
furnace
flow
temperature control
temp
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
FR7715945A
Other languages
French (fr)
Other versions
FR2353803B1 (en
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.)
Otto Junker GmbH
Original Assignee
Otto Junker GmbH
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 Otto Junker GmbH filed Critical Otto Junker GmbH
Publication of FR2353803A1 publication Critical patent/FR2353803A1/en
Application granted granted Critical
Publication of FR2353803B1 publication Critical patent/FR2353803B1/fr
Granted 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
    • F23N5/02—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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/27—Control of temperature characterised by the use of electric means with sensing element responsive to radiation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/10—Sequential burner running

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)
  • Furnace Details (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Radiation Pyrometers (AREA)

Abstract

The optical temp. measuring and controlling system cuts off the heat supply over an adjustable delay element in the heating-up phase, when a first temp. has been reached. In the following control phase, the burners are cut out for a duration either from the renewed reaching of a set temp. or from the moment of their cut-in. This ensures that the core and the surface of the furnace charge have as uniform a temp. as possible. Optical instruments do not have the slow response inherent in thermocouples.
FR7715945A 1976-06-04 1977-05-25 Charge temperature control for flow-through furnace - by optical pyrometers controlling burners with adjustable delay cutout Granted FR2353803A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2625135A DE2625135C3 (en) 1976-06-04 1976-06-04 Process for regulating the temperature of metallic goods

Publications (2)

Publication Number Publication Date
FR2353803A1 true FR2353803A1 (en) 1977-12-30
FR2353803B1 FR2353803B1 (en) 1984-05-18

Family

ID=5979825

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7715945A Granted FR2353803A1 (en) 1976-06-04 1977-05-25 Charge temperature control for flow-through furnace - by optical pyrometers controlling burners with adjustable delay cutout

Country Status (3)

Country Link
DE (1) DE2625135C3 (en)
FR (1) FR2353803A1 (en)
IT (1) IT1079630B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506904A1 (en) * 1981-05-29 1982-12-03 Applic Catalytiques Ste Ly METHOD FOR CONTROLLING A HEATING SYSTEM AND DEVICE FOR IMPLEMENTING SAME
EP0107916A1 (en) * 1982-09-30 1984-05-09 BBC Industries, INC. Flame control system for heat exchanger

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5672119A (en) * 1979-11-20 1981-06-16 Ishikawajima Harima Heavy Ind Co Ltd Temperature compensation method of steel product and its apparatus
US4394121A (en) * 1980-11-08 1983-07-19 Yoshinori Wakamiya Method of controlling continuous reheating furnace
JPS5947324A (en) * 1982-09-08 1984-03-17 Mitsubishi Electric Corp Controlling method of heating in heating furnace
TW265286B (en) * 1993-06-23 1995-12-11 Gas Res Inst

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2138436A1 (en) * 1971-05-26 1973-01-05 Saunier Duval
DE2415207A1 (en) * 1974-03-29 1975-10-16 Leisenberg Manfred Ind Kg Air and fuel supply control to burners - has cut-off valves in supply-line, periodically opening at regulated frequency
FR2266217A1 (en) * 1974-03-26 1975-10-24 Daniel Ets Regulator for gas central heating boiler - has valve control thermistor thermostat and pump resistor
FR2316545A1 (en) * 1975-07-02 1977-01-28 Cointra Sa Two position thermostat for liq. heater with burner - has second valve assembly actuated by differential signal formed from nominal and actual liq. temps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2138436A1 (en) * 1971-05-26 1973-01-05 Saunier Duval
FR2266217A1 (en) * 1974-03-26 1975-10-24 Daniel Ets Regulator for gas central heating boiler - has valve control thermistor thermostat and pump resistor
DE2415207A1 (en) * 1974-03-29 1975-10-16 Leisenberg Manfred Ind Kg Air and fuel supply control to burners - has cut-off valves in supply-line, periodically opening at regulated frequency
FR2316545A1 (en) * 1975-07-02 1977-01-28 Cointra Sa Two position thermostat for liq. heater with burner - has second valve assembly actuated by differential signal formed from nominal and actual liq. temps

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506904A1 (en) * 1981-05-29 1982-12-03 Applic Catalytiques Ste Ly METHOD FOR CONTROLLING A HEATING SYSTEM AND DEVICE FOR IMPLEMENTING SAME
EP0069028A1 (en) * 1981-05-29 1983-01-05 Societe Lyonnaise Des Applications Catalytiques Regulation method for a heating system, and device for carrying it out
EP0107916A1 (en) * 1982-09-30 1984-05-09 BBC Industries, INC. Flame control system for heat exchanger

Also Published As

Publication number Publication date
DE2625135C3 (en) 1978-11-23
FR2353803B1 (en) 1984-05-18
IT1079630B (en) 1985-05-13
DE2625135A1 (en) 1977-12-08
DE2625135B2 (en) 1978-03-30

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Legal Events

Date Code Title Description
ST Notification of lapse