JPS57148121A - Proportional conbustion controlling device - Google Patents

Proportional conbustion controlling device

Info

Publication number
JPS57148121A
JPS57148121A JP56031317A JP3131781A JPS57148121A JP S57148121 A JPS57148121 A JP S57148121A JP 56031317 A JP56031317 A JP 56031317A JP 3131781 A JP3131781 A JP 3131781A JP S57148121 A JPS57148121 A JP S57148121A
Authority
JP
Japan
Prior art keywords
speed
rotation
proportional
combustion
reference voltage
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
JP56031317A
Other languages
Japanese (ja)
Inventor
Shigeki Nakamura
Motoshi Miyanaka
Muneyoshi Kawachi
Shinji Kuramoto
Kazuo Matano
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 JP56031317A priority Critical patent/JPS57148121A/en
Publication of JPS57148121A publication Critical patent/JPS57148121A/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
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F23N1/022—Regulating fuel supply conjointly with air supply using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F23N2233/08—Ventilators at the air intake with variable speed

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)

Abstract

PURPOSE:To detect the abnormality with high reliability by a method wherein a means for detecting the abnormality in speed of rotation of a blower by comparing the output voltage proportional to the speed of rotation of the blower with the reference voltage is provided and said reference voltage in said means is rendered to be variable in response to the rotation showing excessively high speed or of excessively low speed. CONSTITUTION:The proportional combustion controlling device has a combustion controlling device, which performs the control of combustion by ON-OFF control based upon the signal of a negative characterstic thermistor 22 to sense the hot water temperature, a proportional amplifier circuit 1, which outputs the signal proportional to the difference between the hot water temperature and the reference temperature, a guarantee circuit 5 for minimum speed of rotation of the blower, a sensing circuit 60 for abnormality of speed of rotation and the like. In addition, said sensing circuit 60 sets the reference voltage proportional to the reference speed of rotation between the respective output voltages at the maximum speed of revolution within the proportional combustion range under normal operation and at the excessively high speed of revolution in response to the excessively high speed of revolution. On the other hand, said reference voltage is dtermined to be set between the respective voltages at the minimum speed of rotation within the proportional combustion ragne under normal operation and at the excessively low speed of rotation in response to the excessively low speed of rotation.
JP56031317A 1981-03-06 1981-03-06 Proportional conbustion controlling device Pending JPS57148121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56031317A JPS57148121A (en) 1981-03-06 1981-03-06 Proportional conbustion controlling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56031317A JPS57148121A (en) 1981-03-06 1981-03-06 Proportional conbustion controlling device

Publications (1)

Publication Number Publication Date
JPS57148121A true JPS57148121A (en) 1982-09-13

Family

ID=12327897

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56031317A Pending JPS57148121A (en) 1981-03-06 1981-03-06 Proportional conbustion controlling device

Country Status (1)

Country Link
JP (1) JPS57148121A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6169652U (en) * 1984-10-09 1986-05-13
JPS6419223A (en) * 1987-07-13 1989-01-23 Daikin Ind Ltd Combustion controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6169652U (en) * 1984-10-09 1986-05-13
JPS6419223A (en) * 1987-07-13 1989-01-23 Daikin Ind Ltd Combustion controller

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