JPS57124615A - Digital combustion controlling apparatus - Google Patents

Digital combustion controlling apparatus

Info

Publication number
JPS57124615A
JPS57124615A JP56009868A JP986881A JPS57124615A JP S57124615 A JPS57124615 A JP S57124615A JP 56009868 A JP56009868 A JP 56009868A JP 986881 A JP986881 A JP 986881A JP S57124615 A JPS57124615 A JP S57124615A
Authority
JP
Japan
Prior art keywords
circuit
shift register
ignition
shift
purging
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
JP56009868A
Other languages
Japanese (ja)
Other versions
JPH0159496B2 (en
Inventor
Yuji Yamamoto
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.)
Azbil Corp
Original Assignee
Azbil Corp
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 Azbil Corp filed Critical Azbil Corp
Priority to JP56009868A priority Critical patent/JPS57124615A/en
Publication of JPS57124615A publication Critical patent/JPS57124615A/en
Publication of JPH0159496B2 publication Critical patent/JPH0159496B2/ja
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
    • F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
    • F23N5/203—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/04—Prepurge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/28—Ignition circuits
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Control Of Combustion (AREA)

Abstract

PURPOSE:To improve fail-safe function of an apparatus for burning gas or other fuel, by constructing its circuit such that a sequence of procedures required from generation of a thermal demand signal to ignition are controlled through associated operation of a pre-purging shift register and a trial shift register. CONSTITUTION:When a safety switch heater SSH is energized via an integration circuit 1, NAND-circuits NA1, NA2 and an AND-circuit AN3through operation of a thermal demand signal generating section TH and a pre-purging shift register PSR is energized, shift is effected in synchronism with clock signals OSC1. When the shift is completed, the heater SSH is turned OFF and a fan BM is set into operation. On the other hand, since shifting by clock signals OSC2 of a trial shift register TRS is also effected via a matching circuit MP, a valve circuit V1C and an ignition controlling circuit IGC are set into operation successively. The conditions of ignition are checked by a film detector FD. Thus, it is enabled to improve fail-safe function of the apparatus.
JP56009868A 1981-01-26 1981-01-26 Digital combustion controlling apparatus Granted JPS57124615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56009868A JPS57124615A (en) 1981-01-26 1981-01-26 Digital combustion controlling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56009868A JPS57124615A (en) 1981-01-26 1981-01-26 Digital combustion controlling apparatus

Publications (2)

Publication Number Publication Date
JPS57124615A true JPS57124615A (en) 1982-08-03
JPH0159496B2 JPH0159496B2 (en) 1989-12-18

Family

ID=11732110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56009868A Granted JPS57124615A (en) 1981-01-26 1981-01-26 Digital combustion controlling apparatus

Country Status (1)

Country Link
JP (1) JPS57124615A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929921A (en) * 1982-08-10 1984-02-17 Yamatake Honeywell Co Ltd Combustion safety controller

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5347623U (en) * 1976-09-28 1978-04-22
JPS55118529A (en) * 1979-03-02 1980-09-11 Hitachi Ltd Controlling device for combustion
JPS55118527A (en) * 1979-03-02 1980-09-11 Hitachi Ltd Controlling device for combustion
JPS55150425A (en) * 1979-05-09 1980-11-22 Hitachi Ltd Combustion control circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5347623U (en) * 1976-09-28 1978-04-22
JPS55118529A (en) * 1979-03-02 1980-09-11 Hitachi Ltd Controlling device for combustion
JPS55118527A (en) * 1979-03-02 1980-09-11 Hitachi Ltd Controlling device for combustion
JPS55150425A (en) * 1979-05-09 1980-11-22 Hitachi Ltd Combustion control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929921A (en) * 1982-08-10 1984-02-17 Yamatake Honeywell Co Ltd Combustion safety controller

Also Published As

Publication number Publication date
JPH0159496B2 (en) 1989-12-18

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