CA2254990A1 - Boiler system ignition sequence detector and associated methods of protecting boiler systems - Google Patents

Boiler system ignition sequence detector and associated methods of protecting boiler systems

Info

Publication number
CA2254990A1
CA2254990A1 CA002254990A CA2254990A CA2254990A1 CA 2254990 A1 CA2254990 A1 CA 2254990A1 CA 002254990 A CA002254990 A CA 002254990A CA 2254990 A CA2254990 A CA 2254990A CA 2254990 A1 CA2254990 A1 CA 2254990A1
Authority
CA
Canada
Prior art keywords
boiler
sequence detector
associated methods
ignition sequence
boiler system
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
CA002254990A
Other languages
French (fr)
Other versions
CA2254990C (en
Inventor
Patrick J. Keegan
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.)
Rheem Manufacturing Co
Original Assignee
Rheem Manufacturing Co
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 Rheem Manufacturing Co filed Critical Rheem Manufacturing Co
Publication of CA2254990A1 publication Critical patent/CA2254990A1/en
Application granted granted Critical
Publication of CA2254990C publication Critical patent/CA2254990C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/04—Memory
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/08—Microprocessor; Microcomputer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/22—Pilot burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/36—Spark ignition, e.g. by means of a high voltage

Abstract

An event detector and associated methods of protecting systems provide convenient and economical safety features. In a described embodiment, an ignition sequence detector for a boiler system has a microprocessor which is programmed so that an ignition control module of the boiler system is deprived of primary power when an improper sequence of events occurs. The ignition sequence detector includes multiple event detectors interconnected to the microprocessor, and is configured so that it is usable in high RFI environments.
CA002254990A 1997-12-02 1998-11-27 Boiler system ignition sequence detector and associated methods of protecting boiler systems Expired - Fee Related CA2254990C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/982,858 1997-12-02
US08/982,858 US6122567A (en) 1997-12-02 1997-12-02 Boiler system ignition sequence detector and associated methods of protecting boiler systems

Related Child Applications (2)

Application Number Title Priority Date Filing Date
CA002374193A Division CA2374193A1 (en) 1997-12-02 1998-11-27 Boiler system ignition sequence detector and associated methods of protecting boiler systems
CA002374197A Division CA2374197A1 (en) 1997-12-02 1998-11-27 Boiler system ignition sequence detector and associated methods of protecting boiler systems

Publications (2)

Publication Number Publication Date
CA2254990A1 true CA2254990A1 (en) 1999-06-02
CA2254990C CA2254990C (en) 2003-01-14

Family

ID=25529575

Family Applications (3)

Application Number Title Priority Date Filing Date
CA002374193A Abandoned CA2374193A1 (en) 1997-12-02 1998-11-27 Boiler system ignition sequence detector and associated methods of protecting boiler systems
CA002374197A Abandoned CA2374197A1 (en) 1997-12-02 1998-11-27 Boiler system ignition sequence detector and associated methods of protecting boiler systems
CA002254990A Expired - Fee Related CA2254990C (en) 1997-12-02 1998-11-27 Boiler system ignition sequence detector and associated methods of protecting boiler systems

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CA002374193A Abandoned CA2374193A1 (en) 1997-12-02 1998-11-27 Boiler system ignition sequence detector and associated methods of protecting boiler systems
CA002374197A Abandoned CA2374197A1 (en) 1997-12-02 1998-11-27 Boiler system ignition sequence detector and associated methods of protecting boiler systems

Country Status (3)

Country Link
US (3) US6122567A (en)
AU (1) AU737669B2 (en)
CA (3) CA2374193A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19937682C2 (en) * 1999-08-10 2002-03-14 Kostal Leopold Gmbh & Co Kg Electrical circuit arrangement
DE10011410A1 (en) * 2000-03-09 2001-09-20 Bosch Gmbh Robert Fail-safe signal generation device for safety critical signal has back-up device for generation of load driver signal in emergency operating mode
FR2827035B1 (en) * 2001-07-06 2003-09-05 Alstom Power Nv SAFETY DEVICE FOR A BOILER COMPRISING A TIMING SECURED BY AN ELECTRONIC CIRCUIT
US8190695B2 (en) * 2001-08-02 2012-05-29 Sony Corporation Remote control system and remote control method, device for performing remote control operation and control method therefor, device operable by remote control operation and control method therefor, and storage medium
US20030087213A1 (en) * 2001-11-07 2003-05-08 Reifel Allan J. Ignition control system and method
US7293388B2 (en) * 2005-05-13 2007-11-13 Armatron International, Inc. Adaptive control system
CN101728814A (en) * 2008-10-29 2010-06-09 深圳富泰宏精密工业有限公司 Power-off protecting circuit

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US3277949A (en) * 1966-10-11 Apparatus for hydrocarbon ignition and monitoring
US2624399A (en) * 1947-11-29 1953-01-06 Comb Control Corp Program circuit for automatic furnaces
US3074471A (en) * 1960-01-14 1963-01-22 W Oertli A G Fa Ing Control and supervising apparatus for oil burners
US3265112A (en) * 1965-11-05 1966-08-09 Honeywell Inc Burner control indicator
US3423158A (en) * 1966-05-12 1969-01-21 American Radiator & Standard Combustion control circuit
US3554680A (en) * 1968-12-03 1971-01-12 Ranco Inc Burner control system
US3614278A (en) * 1970-03-09 1971-10-19 Charles J Di Noto Jr Alarm ciruit
US3955910A (en) * 1974-09-23 1976-05-11 Johnson Service Company Self-checking automatic pilot fuel ignition system
US4055164A (en) * 1976-07-09 1977-10-25 Wu Heng Tu Apparatus for automatic gas ignition control
US4190414A (en) * 1978-04-17 1980-02-26 W. M. Cissell Manufacturing Company Fail-safe gas feed and ignition sequence control apparatus and method for a gas-fired appliance
US4298334A (en) * 1979-11-26 1981-11-03 Honeywell Inc. Dynamically checked safety load switching circuit
CA1183237A (en) 1980-10-17 1985-02-26 Ralph H. Torborg Integrated control system using a microprocessor
US4412328A (en) * 1981-02-04 1983-10-25 The North American Manufacturing Company Electromechanical device drive circuit fault detection apparatus
GB2179179B (en) * 1985-08-12 1989-10-18 British Gas Corp Improvements in or relating to burner control systems
US4955806A (en) * 1987-09-10 1990-09-11 Hamilton Standard Controls, Inc. Integrated furnace control having ignition switch diagnostics
US4842510A (en) * 1987-09-10 1989-06-27 Hamilton Standard Controls, Inc. Integrated furnace control having ignition and pressure switch diagnostics
US5311451A (en) * 1987-11-06 1994-05-10 M. T. Mcbrian Company, Inc. Reconfigurable controller for monitoring and controlling environmental conditions
AU2684888A (en) * 1988-01-21 1989-07-27 Honeywell Inc. Fuel burner control system with analog sensors
US4850852A (en) * 1988-02-16 1989-07-25 Carrier Corporation Gas valve shut off method and apparatus
US5076780A (en) * 1988-09-01 1991-12-31 Honeywell Inc. Digital controller component failure detection for gas appliance ignition function
US5074780A (en) * 1988-09-01 1991-12-24 Honeywell, Inc. Control system for forced combustion air heating appliance
US4904986A (en) * 1989-01-04 1990-02-27 Honeywell Inc. IR flame amplifier
US5015172A (en) * 1989-01-27 1991-05-14 Honeywell Inc. Method and apparatus for detecting short circuited combustion air switches
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US4986468A (en) * 1989-08-29 1991-01-22 A.O. Smith Corporation Test circuit for system monitoring apparatus
GB9211829D0 (en) 1992-05-30 1992-07-15 Potterton Myson Limited Heating appliances
US5624551A (en) * 1993-04-28 1997-04-29 Fresenius Ag Hydraulic safety circuit for a hemodialysis apparatus
US5364260A (en) * 1993-05-28 1994-11-15 Robertshaw Controls Company Fuel control system, control means therefor and methods of making the same
US5440895A (en) * 1994-01-24 1995-08-15 Copeland Corporation Heat pump motor optimization and sensor fault detection
US5531589A (en) * 1994-02-10 1996-07-02 Robertshaw Controls Company Fuel control system, control device therefor and methods of making and operating the same
US5625788A (en) * 1994-03-01 1997-04-29 Intel Corporation Microprocessor with novel instruction for signaling event occurrence and for providing event handling information in response thereto
US5590036A (en) * 1994-06-01 1996-12-31 Nippondenso Co., Ltd. Failure-recovering sequential procedure teaching system and method thereof
US5551419A (en) * 1994-12-15 1996-09-03 Devilbiss Health Care, Inc. Control for CPAP apparatus
CA2218968A1 (en) * 1995-08-18 1999-04-17 James Rollins Maughan Gas oven fuel control with proof of ignition
US5649818A (en) * 1996-03-04 1997-07-22 Banner Engineering & Sales, Inc. Gas oven burner control method and apparatus
US5720604A (en) * 1996-10-15 1998-02-24 Carrier Corporation Flame detection system

Also Published As

Publication number Publication date
CA2374197A1 (en) 1999-06-02
US6507761B1 (en) 2003-01-14
AU9517398A (en) 1999-06-24
US6122567A (en) 2000-09-19
CA2254990C (en) 2003-01-14
AU737669B2 (en) 2001-08-30
CA2374193A1 (en) 1999-06-02
US6600960B1 (en) 2003-07-29

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed