EP0073405B1 - Gassicherheitsventil mit Wiedereinschaltsperre - Google Patents

Gassicherheitsventil mit Wiedereinschaltsperre Download PDF

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Publication number
EP0073405B1
EP0073405B1 EP82107467A EP82107467A EP0073405B1 EP 0073405 B1 EP0073405 B1 EP 0073405B1 EP 82107467 A EP82107467 A EP 82107467A EP 82107467 A EP82107467 A EP 82107467A EP 0073405 B1 EP0073405 B1 EP 0073405B1
Authority
EP
European Patent Office
Prior art keywords
lever
latch
operating rod
valve
electromagnet
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
EP82107467A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0073405A1 (de
Inventor
Ydo A. Ir. Gort
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 BV
Original Assignee
Honeywell BV
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 Honeywell BV filed Critical Honeywell BV
Publication of EP0073405A1 publication Critical patent/EP0073405A1/de
Application granted granted Critical
Publication of EP0073405B1 publication Critical patent/EP0073405B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q9/00—Pilot flame igniters
    • F23Q9/08—Pilot flame igniters with interlock with main fuel supply
    • F23Q9/12—Pilot flame igniters with interlock with main fuel supply to permit the supply to the main burner in dependence upon existence of pilot flame
    • F23Q9/14—Pilot flame igniters with interlock with main fuel supply to permit the supply to the main burner in dependence upon existence of pilot flame using electric means, e.g. by light-sensitive elements
    • 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
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
    • F23N5/107—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using mechanical means, e.g. safety valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/1407—Combustion failure responsive fuel safety cut-off for burners
    • Y10T137/1516—Thermo-electric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20582—Levers

Definitions

  • the invention relates to a gas safety valve with a restart lock according to the preamble of claim 1, as is known from DE-A 2605128.
  • the object of the invention is to reduce the space requirement of such a gas safety valve in that the housing side facing away from the actuation side is free of any connections and thus the installation depth of the gas safety valve can be reduced. This object is achieved by the invention characterized in claim 1.
  • the valve housing 1 has a gas inlet 2, a first outlet 3 and a pilot burner outlet 4.
  • the outlet 3 is connected to the main burner via a main gas valve (not shown).
  • the safety valve consisting of valve seat 5 and closing body 6, lies between inlet 2 and main outlet 3.
  • the closing body is carried by a two-armed lever 7, which can be pivoted about an axis 8 fixed to the housing.
  • An ignition protection device 11 contains an electromagnet with a core 12 and an armature 13.
  • the armature is carried by an armature pin 14, on which a spring 16 engages via a collar 15 and attempts to pull the armature 13 away from the core 12.
  • An excitation winding 17 attached to the core 12 is connected via a line 18 to a thermocouple, not shown, which is heated by the flame of the pilot burner. As long as the pilot flame burns, a current supplied by the thermocouple flows through the excitation winding 17 and magnetizes the core 12 of the electromagnet 12, 13, 17 of the ignition safety device 11.
  • the pilot burner is connected to the pilot burner outlet 4, and between the pilot burner connection 4 and the inlet 2 of the Valve housing is the pilot burner valve, consisting of the valve seat 19 and the closing body 20.
  • the latter is carried by the actuating rod 21. It can be pressed in by a push button 22 against the force of a return spring 23 in the direction of the arrow.
  • a pawl 24 is pivotally mounted about an axis 38 perpendicular thereto, which is biased by a spring 25 in the counterclockwise direction.
  • the pawl 24 has a ramp inclined surface 26, a recess 27, a projection 28 and a stop 39.
  • a second two-armed lever 29 can also be pivoted about the axis 8 fixed to the housing, the right end of which, in the drawing, bears against the end of the anchor pin 14, while its left end 30 cooperates with the pawl 24.
  • the actuating rod 21 is guided both in its upper part and at its free end 31 in the housing and is provided with a collar 32 which interacts with the second lever 29.
  • a spreading spring 33 presses the two levers 7 and 29 apart.
  • a seal 34 ensures a gas-tight closure of the actuating rod bushing through the housing wall.
  • both the safety valve 5, 6 and the pilot burner valve 19, 20 are closed.
  • the electromagnet 12, 17 is de-energized and its armature 13 is pushed away from the core 12 by the spring 16.
  • the anchor pin 14 thus simultaneously presses the second lever 29 in a clockwise direction against the contact surface 26 of the pawl 24. This rests on the left lever arm 30 of the lever 29 under the pretension of the spring 25.
  • the pilot burner connected to the pilot burner connection 4 must first be ignited.
  • the button 22 is pressed in against the force of the return spring 23 and the closing body 20 of the pilot burner valve 19, 20 is thereby lifted off the seat 19. Gas flows through outlet 4 to the pilot burner and can be ignited there.
  • the collar 32 simultaneously pivots the second lever 29 counterclockwise about the axis 8, as a result of which the right end of the lever 29 presses the anchor pin 14 upward and thus the armature 13 against the core 12 of the electromagnet of the ignition protection device 11.
  • the spring 25 ensures that the pawl 24 continues to rest on the left end 30 of the second lever 29 with its contact surface 26. If the pilot flame has formed, the current generated by the thermocouple magnetizes the core 12 through the excitation winding 17, so that the magnetic force holds the armature 13 on the core 12 even if the force of the lever 29 which presses in the armature pin 14 should be eliminated.
  • the actuating rod 21 can namely not be pressed in as long as the safety valve 5, 6 cannot be opened as long as the latch stop 39 faces the stop 36 fixed to the housing. Only after the thermocouple has cooled down, the ignition protection device 11 is de-energized and releases the armature 13, can the return spring 16 press the armature pin 14 downward. The left end 30 of the second lever 29 slides along the contact surface 26 of the pawl 24 and pivots the pawl 24 clockwise into the rest position shown in FIG. 1. Then the stops 39 and 36 no longer face each other and a renewed attempt at ignition can be initiated, as described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Magnetically Actuated Valves (AREA)
EP82107467A 1981-08-21 1982-08-17 Gassicherheitsventil mit Wiedereinschaltsperre Expired EP0073405B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813133075 DE3133075A1 (de) 1981-08-21 1981-08-21 Gassicherheitsventil mit wiedereinschaltsperre
DE3133075 1981-08-21

Publications (2)

Publication Number Publication Date
EP0073405A1 EP0073405A1 (de) 1983-03-09
EP0073405B1 true EP0073405B1 (de) 1984-06-27

Family

ID=6139781

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82107467A Expired EP0073405B1 (de) 1981-08-21 1982-08-17 Gassicherheitsventil mit Wiedereinschaltsperre

Country Status (4)

Country Link
US (1) US4442853A (da)
EP (1) EP0073405B1 (da)
DE (2) DE3133075A1 (da)
DK (1) DK150034C (da)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5203688A (en) * 1992-02-04 1993-04-20 Honeywell Inc. Safe gas control valve for use with standing pilot
US5193993A (en) * 1992-02-05 1993-03-16 Honeywell Inc. Safe gas valve
US5622200A (en) * 1994-04-14 1997-04-22 Mertik Maxitrol Gmbh & Co., Kg Thermo-electric safety igniter with reignition lock
US6886581B2 (en) 2002-11-12 2005-05-03 Uwe Harniet Gas valve with a thermoelectric security device
CA2488846C (en) * 2003-12-01 2010-09-21 Platinum Energy Services Corp. Burner ignition and control system
ITTO20040218A1 (it) * 2004-04-08 2004-07-08 Iusa Ind Unidas S A De C V Dispositivo di sicurezza per valvola d'accensione di un bruciatore a gas.
US7624755B2 (en) * 2005-12-09 2009-12-01 Honeywell International Inc. Gas valve with overtravel
US7523762B2 (en) * 2006-03-22 2009-04-28 Honeywell International Inc. Modulating gas valves and systems
US20080099082A1 (en) * 2006-10-27 2008-05-01 Honeywell International Inc. Gas valve shutoff seal
US7644731B2 (en) * 2006-11-30 2010-01-12 Honeywell International Inc. Gas valve with resilient seat
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9557059B2 (en) 2011-12-15 2017-01-31 Honeywell International Inc Gas valve with communication link
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US9234661B2 (en) 2012-09-15 2016-01-12 Honeywell International Inc. Burner control system
EP2868970B1 (en) 2013-10-29 2020-04-22 Honeywell Technologies Sarl Regulating device
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
JP6861105B2 (ja) * 2017-06-14 2021-04-21 リンナイ株式会社 ガス燃焼装置
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1084172A (da) *
US2719531A (en) * 1952-12-20 1955-10-04 Honeywell Regulator Co Valve
US2969077A (en) * 1957-04-12 1961-01-24 Controls Co Of America Control device
DE1429062A1 (de) * 1962-08-10 1968-10-31 Controls Mij Europa N V Sicherheitsventil,insbesondere fuer Gasheizungen
FR1519739A (fr) * 1967-02-20 1968-04-05 Theobald Ets A Dispositif de sécurité à couple thermo-électrique pour brûleurs à gaz
US3572355A (en) * 1968-03-30 1971-03-23 Honeywell Inc Pushbutton operable gas valve combination
US3574308A (en) * 1969-03-07 1971-04-13 Honeywell Inc Manually reset safety control
US3780600A (en) * 1971-07-14 1973-12-25 Robertshaw Controls Co Dual lever mechanism
US3877475A (en) * 1973-10-17 1975-04-15 Honeywell Inc Safe lighting gas valve
US3973576A (en) * 1975-02-13 1976-08-10 Honeywell Inc. Gas valve with pilot safety apparatus

Also Published As

Publication number Publication date
DK150034C (da) 1987-05-11
DK150034B (da) 1986-11-24
EP0073405A1 (de) 1983-03-09
DE3133075A1 (de) 1983-03-10
DE3260300D1 (en) 1984-08-02
DK372682A (da) 1983-02-22
US4442853A (en) 1984-04-17

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