JPS61186716A - Control device for safety of burning - Google Patents

Control device for safety of burning

Info

Publication number
JPS61186716A
JPS61186716A JP2649185A JP2649185A JPS61186716A JP S61186716 A JPS61186716 A JP S61186716A JP 2649185 A JP2649185 A JP 2649185A JP 2649185 A JP2649185 A JP 2649185A JP S61186716 A JPS61186716 A JP S61186716A
Authority
JP
Japan
Prior art keywords
circuits
burning
pulse
signals
flow rate
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.)
Pending
Application number
JP2649185A
Other languages
Japanese (ja)
Inventor
Hideaki Hirakawa
Shuji Morio
Original Assignee
Yamatake Honeywell Co 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 Yamatake Honeywell Co Ltd filed Critical Yamatake Honeywell Co Ltd
Priority to JP2649185A priority Critical patent/JPS61186716A/en
Publication of JPS61186716A publication Critical patent/JPS61186716A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion
    • F23N5/18Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N5/184Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using electronic means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N1/00Regulating fuel supply
    • F23N1/08Regulating fuel supply conjointly with another medium, e.g. boiler water
    • F23N1/082Regulating fuel supply conjointly with another medium, e.g. boiler water using electronic means

Abstract

PURPOSE:To prevent an imperfect burning and an accident due to burning without fuel by stopping burning in such a manner that in case when the flow rate is detected to be under the specified value by the lengthened pulse period of output of physical detecting sensor which puts out periodic pulse signals of air and water flow rates, a main gas valve for a burner is closed by the operation of a main valve driver to stop burning. CONSTITUTION:One-shot circuits 11, 12 put out air flow rate signal A and water flow rate signal B corresponding to their flow rates as pulse period and the periodic pulses are arranged in the pulse signals having constant width regardless of the used frequency. At coincidence detecting circuits 13, 14, said signals are coincided with a signal E of the main gas valve to open. When pulse monitoring circuits 15, 16 having output signals from the coincidence circuits 13, 14 as their inputs respectively detect that the pulse periods of input signals are lengthened over the specified value, the circuits 15, 16 control to close the main valve 3 in such a manner that contacts 15a, 16a installed in an abnormality detect part 17 are closed respectively.
JP2649185A 1985-02-15 1985-02-15 Control device for safety of burning Pending JPS61186716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2649185A JPS61186716A (en) 1985-02-15 1985-02-15 Control device for safety of burning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2649185A JPS61186716A (en) 1985-02-15 1985-02-15 Control device for safety of burning

Publications (1)

Publication Number Publication Date
JPS61186716A true JPS61186716A (en) 1986-08-20

Family

ID=12194966

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2649185A Pending JPS61186716A (en) 1985-02-15 1985-02-15 Control device for safety of burning

Country Status (1)

Country Link
JP (1) JPS61186716A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0330049U (en) * 1988-04-15 1991-03-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0330049U (en) * 1988-04-15 1991-03-25

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