GB1162824A - Flame Failure Safety System - Google Patents

Flame Failure Safety System

Info

Publication number
GB1162824A
GB1162824A GB40048/66A GB4004866A GB1162824A GB 1162824 A GB1162824 A GB 1162824A GB 40048/66 A GB40048/66 A GB 40048/66A GB 4004866 A GB4004866 A GB 4004866A GB 1162824 A GB1162824 A GB 1162824A
Authority
GB
United Kingdom
Prior art keywords
flame
relay
switch
normally open
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.)
Expired
Application number
GB40048/66A
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
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
Priority claimed from US533754A external-priority patent/US3280884A/en
Application filed by Honeywell Inc filed Critical Honeywell Inc
Publication of GB1162824A publication Critical patent/GB1162824A/en
Expired 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
    • F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
    • F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors
    • F23N2229/16—Flame sensors using two or more of the same types of flame sensor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/06—Fail safe for flame failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2237/00—Controlling
    • F23N2237/02—Controlling two or more burners

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

1,162,824. Controlling burners. HONEYWELL Inc. 7 Sept., 1966 [7 Sept., 1965; 3 Feb., 1966], No. 40048/66. Heading F4T. In a multiple burner control system each burner has a flame-detecting means with an input in the form of a photo-electric cell 23 . . . 26 and an output in the form of a flame relay B . . . E each including a normally closed switch and a normally open switch of which the normally open switches are connected in series to the winding of a relay A having a normally open switch A1 connected in parallel with the normally open switch of the manual start controller 13 and the normally closed switch of each flame relay is connected to a flame failure indicator such as neon bulb 30 . . . 33. A lower voltage source 40 provides a sustaining voltage for the neon bulbs which are not ignited by this voltage. When the manual start controller 13 is actuated the source 40 is removed from the bulbs and a main fuel valve 50 is opened and when a flame is established at each of the burners the relays B . . . E are energized to energize relay A to close switch A1 and allow release of controller 13. If one of the burners experiences a flame failure, its relay normally closed switch is closed to apply a start voltage pulse to its neon bulb and the open switch deenergizes relay A thus opening the fuel valve 50. In a modification, Fig. 2, the flame failure indicating means comprises a silicon-controlled rectifier 101 . . . 104 which has an initiating voltage applied to the gate thereof and a sustaining voltage applied to the anode thereof. The system may be applied to both unison and sequential pilot-lighting arrangements.
GB40048/66A 1965-09-07 1966-09-07 Flame Failure Safety System Expired GB1162824A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48527465A 1965-09-07 1965-09-07
US533754A US3280884A (en) 1966-02-03 1966-02-03 Burner control apparatus

Publications (1)

Publication Number Publication Date
GB1162824A true GB1162824A (en) 1969-08-27

Family

ID=27048298

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40048/66A Expired GB1162824A (en) 1965-09-07 1966-09-07 Flame Failure Safety System

Country Status (1)

Country Link
GB (1) GB1162824A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1840464A1 (en) * 2006-03-30 2007-10-03 ALSTOM Technology Ltd Combustion chamber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1840464A1 (en) * 2006-03-30 2007-10-03 ALSTOM Technology Ltd Combustion chamber
US7901203B2 (en) 2006-03-30 2011-03-08 Alstom Technology Ltd. Combustion chamber

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed