EP1285200A1 - Dispositif de regulation destine a des bruleurs a gaz - Google Patents

Dispositif de regulation destine a des bruleurs a gaz

Info

Publication number
EP1285200A1
EP1285200A1 EP01953944A EP01953944A EP1285200A1 EP 1285200 A1 EP1285200 A1 EP 1285200A1 EP 01953944 A EP01953944 A EP 01953944A EP 01953944 A EP01953944 A EP 01953944A EP 1285200 A1 EP1285200 A1 EP 1285200A1
Authority
EP
European Patent Office
Prior art keywords
valve
servo
control device
frequency
servo valve
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.)
Withdrawn
Application number
EP01953944A
Other languages
German (de)
English (en)
Inventor
Wim Munsterhuis
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 EP1285200A1 publication Critical patent/EP1285200A1/fr
Withdrawn legal-status Critical Current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
    • F23N1/005—Regulating fuel supply using electrical or electromechanical means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2093—Control of fluid pressure characterised by the use of electric means with combination of electric and non-electric auxiliary power
    • G05D16/2095—Control of fluid pressure characterised by the use of electric means with combination of electric and non-electric auxiliary power using membranes within the main valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/14—Fuel valves electromagnetically operated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/20—Membrane valves

Definitions

  • the invention relates to a control device for gas burners according to the preamble of claim 1.
  • Control devices for gas burners are well known from the prior art.
  • Known control devices for gas burners have a main valve, a servo valve and a servo controller, the servo controller being used according to the state of the art for setting the setpoint and regulating a gas outlet pressure.
  • modulation takes place in that a modulation coil acts on the servo controller, which is supplied with a variable current and changes the settings made on the servo controller.
  • the present invention is based on the problem of creating a novel control device for gas burners.
  • Figure 1 is a schematic diagram of a control device according to the invention in the closed position in cross section.
  • Fig. 2 is a schematic diagram of the control device according to the invention of Figure 1 in the open position also in cross section.
  • FIG. 4 shows another example of pulse width modulation.
  • Figure 1 shows a control device 10 according to the invention in the closed position.
  • a gas flow that flows into the control device in the area of an inlet 12 and leaves it in the area of an outlet 13 is regulated via a main valve 11.
  • the main valve 11 is formed by a valve body 14 which rests on a valve seat 15 in the closed position.
  • the valve body 14 is connected to a control membrane 16. In the closed position of the main valve 11, the valve body 14 is pressed against the valve seat 15 by a spring element 17.
  • a gas inlet chamber 18, which is arranged below the control membrane 16, is connected via a bore 19 to a servo gas chamber 20, which is positioned above the control membrane 16.
  • a servo valve 21 is also closed, in which position a valve body 22 of the servo valve 21 is pressed against a corresponding valve seat 23, namely by a spring element 27.
  • control device 10 has a servo controller 28, a valve body 29 of the servo controller 28 interacting with a corresponding valve seat 30.
  • the valve body 29 of the servo controller is connected to a diaphragm 31, on which a spring element 32 of a presetting device 33 of the servo controller 28 also engages.
  • the servo valve 21 is opened against the force of the spring element 27 via an actuator 24 assigned to the servo valve 21.
  • gas can flow out of the servo gas chamber 20 via corresponding bores 25 and 34 into a gas outlet chamber 26.
  • the pressure prevailing in the servo gas chamber 20 then decreases, and the gas pressure prevailing in the gas inlet chamber 18 lifts the valve body 14 of the main valve 11 from the valve seat 15.
  • the servo valve 21 is actuated via the actuator 24 depending on an upcoming heat request.
  • the actuator 24 for the servo valve 21 is frequency-modulated, namely pulse-width-modulated, in the present invention.
  • the servo valve 21 is either completely opened or completely closed with a certain frequency, the length of the on-cycles at a certain frequency making up the actual modulation.
  • the actuator 24 is accordingly designed as an on / off actuator 24.
  • the modulation coil acting on the servo drive and used according to the prior art can be omitted. Accordingly, in the invention, modulation takes place with the aid of the servo valve 21 or the actuator 24 and not via the servo controller 28.
  • the opening of the main valve 11 and thus the gas flow is determined by the length of the on-cycles of the pulse-width-modulated servo valve 21.
  • the frequency range that is typically available for modulation according to the invention is between 10 Hz and 30 Hz. Below a frequency of 10 Hz there are undesired disturbances in the output pressure. At a frequency above 30 Hz, the mechanical components of the servo valve 21 cannot follow the frequency.
  • FIG. 3 and 4 illustrate the modulation principle, for example for a frequency of 10 Hz, where T j is then 0.1 sec.
  • the so-called duty cycle is therefore 50%.
  • the degree or the measure of the load cycle determines the modulation and thus ultimately the opening of the main valve.
  • the load cycle is directly dependent on the heat requirement.

Abstract

L'invention concerne un dispositif de régulation pourvu d'une valve principale (11) et d'une servovalve (21), l'ouverture de la valve principale étant régulée par la servovalve. Selon l'invention, l'actionneur (24) de la servovalve est modulé en fréquence, c.-à-d. modulé en largeur d'impulsions.
EP01953944A 2000-05-25 2001-05-18 Dispositif de regulation destine a des bruleurs a gaz Withdrawn EP1285200A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10026035A DE10026035C2 (de) 2000-05-25 2000-05-25 Regeleinrichtung für Gasbrenner
DE10026035 2000-05-25
PCT/EP2001/005694 WO2001090648A1 (fr) 2000-05-25 2001-05-18 Dispositif de regulation destine a des bruleurs a gaz

Publications (1)

Publication Number Publication Date
EP1285200A1 true EP1285200A1 (fr) 2003-02-26

Family

ID=7643608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01953944A Withdrawn EP1285200A1 (fr) 2000-05-25 2001-05-18 Dispositif de regulation destine a des bruleurs a gaz

Country Status (5)

Country Link
US (1) US20040075070A1 (fr)
EP (1) EP1285200A1 (fr)
CA (1) CA2378308A1 (fr)
DE (1) DE10026035C2 (fr)
WO (1) WO2001090648A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10232654B3 (de) * 2002-07-18 2004-03-11 Honeywell B.V. Gasdurchflussregeleinrichtung
DE10232653B3 (de) 2002-07-18 2004-03-11 Honeywell B.V. Regeleinrichtung für Gasbrenner
DE10232647B4 (de) 2002-07-18 2004-05-13 Honeywell B.V. Regeleinrichtung für Gasbrenner
US7435081B2 (en) * 2004-01-27 2008-10-14 Honeywell International Inc. Method and system for pilot light safety
CA2630767A1 (fr) * 2005-11-23 2007-05-31 Sit La Precisa S.P.A. Dispositif de commande de fourniture d'un gaz combustible a un appareil a bruleur
US20080224074A1 (en) * 2007-03-12 2008-09-18 Honeywell International, Inc. Flexible valve plate and low friction control servo employing the same
US20080273982A1 (en) * 2007-03-12 2008-11-06 Honeywell International, Inc. Blade attachment retention device
US7950622B2 (en) 2007-07-25 2011-05-31 Honeywell International, Inc. System, apparatus and method for controlling valves
US8823714B1 (en) * 2009-02-23 2014-09-02 Livespark LLC Music-reactive fire display
DE102011101187B4 (de) * 2011-05-11 2014-09-04 Magna Steyr Fahrzeugtechnik Ag & Co Kg Druckminderer
US10428972B2 (en) 2017-09-27 2019-10-01 Ademco Inc. Water heater gas valve
US10851911B2 (en) 2018-09-01 2020-12-01 Ademco Inc. Valve actuator with external coils

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849265C2 (de) * 1978-11-14 1982-04-29 Gema AG Apparatebau, 9015 St. Gallen Druckregler
JPS55129810A (en) * 1979-03-29 1980-10-08 Nissan Motor Co Ltd Control method for on-off electromagnetic valve
US4416187A (en) * 1981-02-10 1983-11-22 Nystroem Per H G On-off valve fluid governed servosystem
EP0113876A2 (fr) * 1982-12-17 1984-07-25 Honeywell Inc. Appareil de contrôle de gaz
GB2172996B (en) * 1984-06-27 1987-07-15 Osaka Gas Co Ltd Fluidic flowmeter
DE3834850A1 (de) * 1988-10-13 1990-04-19 Kloeckner Humboldt Deutz Ag Brennstoffzufuhr zu einem regenerationsbrenner eines dieselpartikelfilters
US5020771A (en) * 1989-01-26 1991-06-04 Ranco Japan Ltd. Proportional control valve
DE68922090T2 (de) * 1989-01-26 1995-12-21 Ranco Japan Ltd Proportionales Regelventil.
US5023535A (en) * 1989-04-21 1991-06-11 Vickers, Incorporated High resolution pulse width modulation
AT396850B (de) * 1991-09-09 1993-12-27 Vaillant Gmbh Servodruckregler
US5234024A (en) * 1992-07-06 1993-08-10 General Motors Corporation Differential pressure regulator
DE19737191A1 (de) * 1997-08-27 1998-07-30 Bosch Gmbh Robert Vorrichtung zum Betreiben einer Heizungsanlage
DE19821853C1 (de) * 1998-05-15 1999-07-29 Honeywell Bv Regeleinrichtung für Gasbrenner
IT1308113B1 (it) * 1999-06-02 2001-11-29 Sit La Precisa Spa Gruppo valvolare per la modulazione della pressione di erogazione diun gas.
EP1106924A1 (fr) * 1999-12-09 2001-06-13 Honeywell B.V. Soupape à gaz

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0190648A1 *

Also Published As

Publication number Publication date
CA2378308A1 (fr) 2001-11-29
DE10026035A1 (de) 2001-12-06
US20040075070A1 (en) 2004-04-22
WO2001090648A1 (fr) 2001-11-29
DE10026035C2 (de) 2002-06-27

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