JPS62223523A - Abnormality detector for flame detecting circuit - Google Patents

Abnormality detector for flame detecting circuit

Info

Publication number
JPS62223523A
JPS62223523A JP6632886A JP6632886A JPS62223523A JP S62223523 A JPS62223523 A JP S62223523A JP 6632886 A JP6632886 A JP 6632886A JP 6632886 A JP6632886 A JP 6632886A JP S62223523 A JPS62223523 A JP S62223523A
Authority
JP
Japan
Prior art keywords
flame
combustion
unit
condition
signal
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
JP6632886A
Other languages
Japanese (ja)
Other versions
JPH07113452B2 (en
Inventor
Goji Honda
Yukio Asano
Original Assignee
Matsushita Electric Ind 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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Priority to JP61066328A priority Critical patent/JPH07113452B2/en
Publication of JPS62223523A publication Critical patent/JPS62223523A/en
Publication of JPH07113452B2 publication Critical patent/JPH07113452B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F23N5/20Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
    • F23N5/203Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays using electronic means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion
    • F23N5/24Preventing development of abnormal or undesired conditions, i.e. safety arrangements

Abstract

PURPOSE:To prevent malfunction such as abnormality detection because of the slow response of a flame sensor by providing a decision timer between an operation switch and a decision unit. CONSTITUTION:When an operation switch 15 is turned OFF by malfunction at a time (t1) under the condition of combustion, the level EF of an electric signal outputted from a flame signal converting unit 9 is higher than the decided level EC of a cut-off level unit 10. When the operation switch 15 is turned on again under this condition, a decision unit 12 detects an abnormal condition since there is a flame existing signal in spite of a condition that a sequence control unit 14 is stopping combustion, however, when a flame non-existing signal (t3) is inputted during the time T of a decision timer 13, the decision unit 12 decides that the combustion is normal and outputs a normal signal to the sequence control unit 14 to start combustion sequence. When the flame non-existing signal is not inputted during the time T, an abnormality signal is sent to the control unit 14 from the decision unit 12 simultaneously with the count-up of the time T whereby the control unit 14 holds the condition of stopping the combustion.
JP61066328A 1986-03-25 1986-03-25 Anomaly detection device for flame detection circuit Expired - Lifetime JPH07113452B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61066328A JPH07113452B2 (en) 1986-03-25 1986-03-25 Anomaly detection device for flame detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61066328A JPH07113452B2 (en) 1986-03-25 1986-03-25 Anomaly detection device for flame detection circuit

Publications (2)

Publication Number Publication Date
JPS62223523A true JPS62223523A (en) 1987-10-01
JPH07113452B2 JPH07113452B2 (en) 1995-12-06

Family

ID=13312663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61066328A Expired - Lifetime JPH07113452B2 (en) 1986-03-25 1986-03-25 Anomaly detection device for flame detection circuit

Country Status (1)

Country Link
JP (1) JPH07113452B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012180991A (en) * 2011-03-02 2012-09-20 Rinnai Corp Gas combustion device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60181563U (en) * 1984-05-10 1985-12-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60181563U (en) * 1984-05-10 1985-12-02

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012180991A (en) * 2011-03-02 2012-09-20 Rinnai Corp Gas combustion device

Also Published As

Publication number Publication date
JPH07113452B2 (en) 1995-12-06

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