JPS54125537A - Lighting-fire detection device - Google Patents

Lighting-fire detection device

Info

Publication number
JPS54125537A
JPS54125537A JP3308078A JP3308078A JPS54125537A JP S54125537 A JPS54125537 A JP S54125537A JP 3308078 A JP3308078 A JP 3308078A JP 3308078 A JP3308078 A JP 3308078A JP S54125537 A JPS54125537 A JP S54125537A
Authority
JP
Japan
Prior art keywords
terminal thyristor
fire
lighting
detection device
series
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
JP3308078A
Other languages
Japanese (ja)
Inventor
Kenji Todo
Takeshi Matsuzaki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3308078A priority Critical patent/JPS54125537A/en
Priority to CA323,394A priority patent/CA1106472A/en
Priority to GB7909196A priority patent/GB2018969B/en
Priority to DE19792911493 priority patent/DE2911493A1/en
Priority to DK120279A priority patent/DK120279A/en
Publication of JPS54125537A publication Critical patent/JPS54125537A/en
Pending 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
    • F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
    • F23N5/123—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors
    • F23N2229/12—Flame sensors with flame rectification current detecting means

Abstract

PURPOSE: To improve rise characteristics, eliminate erroneous operation, and increase detection sensitivity, by using a two-direction two-terminal thyristor.
CONSTITUTION: Electrode 3, pulse transformer 4, two-direction two-terminal thyristor 17, and burner 1 are connected in series. A circuit in which condenser 10, resistor 9, and fire-detection transformer 8 are connected in series is connected in parallel with two-direction two-terminal thyristor 17. The voltage obtained on both ends of two-direction two-terminal thyristor 17 due to the presence of a fire is smoothed up by a low-pass filter and this is detected by fire-detection circuit 15. Two-direction two-terminal thyristor 17 is a semiconductor element, has good rise characteristics, flows discharge current accurately, and prevents erroneous operation.
COPYRIGHT: (C)1979,JPO&Japio
JP3308078A 1978-03-24 1978-03-24 Lighting-fire detection device Pending JPS54125537A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP3308078A JPS54125537A (en) 1978-03-24 1978-03-24 Lighting-fire detection device
CA323,394A CA1106472A (en) 1978-03-24 1979-03-14 Ignition/flame-detection device for a burner combustion control system
GB7909196A GB2018969B (en) 1978-03-24 1979-03-15 Ignition/flamedection device for a burner combustion control system
DE19792911493 DE2911493A1 (en) 1978-03-24 1979-03-23 IGNITION / FLAME SENSOR FOR BURNER CONTROL ARRANGEMENT
DK120279A DK120279A (en) 1978-03-24 1979-03-23 IGNITION AND FLAME DETECTION DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3308078A JPS54125537A (en) 1978-03-24 1978-03-24 Lighting-fire detection device

Publications (1)

Publication Number Publication Date
JPS54125537A true JPS54125537A (en) 1979-09-29

Family

ID=12376713

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3308078A Pending JPS54125537A (en) 1978-03-24 1978-03-24 Lighting-fire detection device

Country Status (5)

Country Link
JP (1) JPS54125537A (en)
CA (1) CA1106472A (en)
DE (1) DE2911493A1 (en)
DK (1) DK120279A (en)
GB (1) GB2018969B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56146925A (en) * 1980-04-16 1981-11-14 Hitachi Ltd Ignition and flame detector
NL8401173A (en) * 1984-04-12 1985-11-01 Philips Nv FLAME PROTECTION CIRCUIT.
DE102005012388B4 (en) * 2005-03-17 2007-09-20 Beru Ag Method for detecting the presence of a flame in the combustion chamber of a burner and igniter for a burner
ITPD20060382A1 (en) * 2006-10-13 2008-04-14 Elettronica Santerno S P A SOLAR INVERTER AND SOLAR ENERGY CONVERSION PLANT IN ELECTRICITY

Also Published As

Publication number Publication date
GB2018969B (en) 1982-04-21
DE2911493A1 (en) 1979-10-04
CA1106472A (en) 1981-08-04
DK120279A (en) 1979-09-25
GB2018969A (en) 1979-10-24

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