EP0062855A1 - Dispositif de régulation pour un dispositif de chauffage à gaz pour eau ou air - Google Patents

Dispositif de régulation pour un dispositif de chauffage à gaz pour eau ou air Download PDF

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Publication number
EP0062855A1
EP0062855A1 EP82102803A EP82102803A EP0062855A1 EP 0062855 A1 EP0062855 A1 EP 0062855A1 EP 82102803 A EP82102803 A EP 82102803A EP 82102803 A EP82102803 A EP 82102803A EP 0062855 A1 EP0062855 A1 EP 0062855A1
Authority
EP
European Patent Office
Prior art keywords
gas
air
control device
control valve
flue gas
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
EP82102803A
Other languages
German (de)
English (en)
Other versions
EP0062855B1 (fr
Inventor
Hendrikus Berkhof
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 EP0062855A1 publication Critical patent/EP0062855A1/fr
Application granted granted Critical
Publication of EP0062855B1 publication Critical patent/EP0062855B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
    • F23N5/006—Systems for controlling combustion using detectors sensitive to combustion gas properties the detector being sensitive to oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/16—Measuring temperature burner temperature
    • 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
    • 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
    • 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
    • F23N2235/16—Fuel valves variable flow or proportional valves
    • 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
    • F23N2235/18—Groups of two or more valves
    • 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
    • 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
    • F23N2235/24—Valve details

Definitions

  • the invention relates to a control device according to the preamble of claim 1.
  • a control device is known for example from GB-PS 12 35 891 and described in the older DE-OS 30 10 737 with the addition DE-OS 30 44 678.
  • gas with a constant calorific value such as town gas
  • very different gases such as town gas, natural gas and liquefied petroleum gas are offered, which differ both in terms of their calorific value and in terms of make a strong distinction between the amount of combustion air required to achieve complete combustion.
  • the so-called Wobbe Index which has quite different values for the individual types of gas, is usually used as the indicator for the calorific value and the density of the gas.
  • the aim is to burn as completely as possible with a small excess of air. While around 3 to 4m 3 of air is required to burn 1m 3 of city gas, natural gas already requires around 8m 3 and butane around 30m 3 . Since burners and associated control devices are usually set to a specific type of gas and can be switched to another type of gas if necessary through special customer service measures, the gas supply companies have the resulting from the range of different types of gas Attempts to eliminate difficulties for consumers by mixing the heating gas with an auxiliary gas, for example air or nitrogen, in such a way that gas of approximately the same Wobbe index is fed into the supply network regardless of the type of gas. However, such mixing devices are not only complex, but also require strict safety monitoring so that a combustible gas mixture is not present in the distribution network or can form without the addition of additional combustion air.
  • auxiliary gas for example air or nitrogen
  • the invention aims to provide a water or air heater that can be fired with gas of different Wobbe index. This object is achieved by a control device of the type characterized in claim 1. With the invention it is possible, despite different calorific values of the gas supplied, to ensure that the burner is always optimal, ie. H. operate with complete combustion of the heating gas with a small excess of air and thus make the best possible use of the fuel supplied.
  • the heat exchanger 1 of a water heater or boiler 2 is heated by a main burner 3, to which a pilot burner 4 and a thermocouple 5 monitoring the pilot flame are assigned.
  • the main burner 3 is supplied with gas via an injector nozzle 6 which, due to its suction effect, simultaneously feeds primary air to the burner 3.
  • the injector nozzle 6 faces the inlet 7 of the main burner 3 and is connected to the outlet 8 of a gas control device 9.
  • this has the structure known from the company publication D3H-29 Honeywell “compact valves V4600 / V8600” and contains a servo pressure regulator 10 and a main gas valve 11 controlled by its output control pressure.
  • the heater housing 2 Since the primary air simultaneously sucked in by means of the gas nozzle 6 is not sufficient for complete combustion, the heater housing 2 also has an air inlet 12 which is opposed by a second jet nozzle 13.
  • the air inlet 12 opens into a secondary air distribution pipe 14, which is designed in the manner of a burner pipe and is provided with air outlet holes.
  • the compressed air for the secondary air nozzle 13 is supplied by a blower 15, which is followed by an air control valve 16.
  • the setpoint for the air control valve 16 is adjustable by means of an electromagnetic drive 18.
  • a line 20 is also connected to the outlet 19 of the air control valve 16, which leads to an air outlet nozzle 22 provided in the flue gas outlet 21 and there to generate an artificial draft in the smoke vent 21 or chimney.
  • the air pressure supplied to the nozzle 22 can be adjusted by means of a throttle 23 switched into this line.
  • the connecting line 20 to the air outlet nozzle 22 can, as the dashed line 20 'indicates, be connected directly to the blower 15.
  • the water heated in the heat exchanger 1 is pumped by a circulation pump 24 through the heating medium circuit in the form of two radiators 25.
  • a room thermostat 26 closes its contacts as soon as the measured room temperature is below the setpoint.
  • the boiler thermostat 27 closes its contact as soon as the water temperature at the inlet of the heat exchanger-1 is below the preferably adjustable setpoint.
  • a temperature limiter 28 is also provided, which opens the circuit as soon as an upper limit of the water temperature at the outlet of the heat exchanger 1 is exceeded.
  • the three thermostat switches mentioned are connected in series with the excitation winding of a switch-on solenoid valve provided in the gas control valve 9 to a current source 29.
  • the gas control device 9 is switched on via the switch-on solenoid valve; its pressure regulator 10 generates a control pressure, which takes effect in the drive chamber 30 of the main gas valve 11 and lifts the closing body of the seat. Gas thus flows to the main burner 3, is ignited there by the pilot burner 4, and the flames heat the circulating water in the heat exchanger 1.
  • the sensor 31 provided in the flue gas extractor 21 detects that the oxygen or carbon dioxide content is too low.
  • the measured value is marked with an am electrical controller 32 predetermined or adjustable by means of setpoint generator 33 setpoints. If the oxygen content or the C0 2 content is too low, the controller 32 supplies an output current on the line 34 to the magnetic drive 18 of the servo pressure controller 17, whereby this increases the setpoint of the servo pressure controller via the electromagnetic drive and thus a further opening of the air control valve 16 causes. In this way, a larger amount of secondary air is supplied to the air distributor 14 via the air nozzle 13 and thus the combustion is improved.
  • the flue gas extractor 21 is provided with a train interruption 35, it may be more favorable to provide the sensor 31 'downstream of this train interrupter 35 because the sensor then becomes less hot. However, the influence of the air flow sucked in via the train interrupter 35 must then be taken into account when determining the setpoint for the oxygen or carbon dioxide content. If the oxygen content rises above the setpoint, the sensor 31 reports this to the electric controller 32, which reduces the control pressure for the air control valve 16 via the electromagnetic drive 18 and the servo pressure controller 17, so that its closing body is adjusted in the direction of the closed position and thus the amount of secondary air supplied decreased.
  • the output signal of the electric controller 32 can also be used directly to control the speed of the fan 15, as is indicated by the dashed electrical line 36.

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)
EP82102803A 1981-04-13 1982-04-02 Dispositif de régulation pour un dispositif de chauffage à gaz pour eau ou air Expired EP0062855B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813114954 DE3114954A1 (de) 1981-04-13 1981-04-13 Regeleinrichtung fuer einen gasbefeuerten wasser- oder lufterhitzer
DE3114954 1981-04-13

Publications (2)

Publication Number Publication Date
EP0062855A1 true EP0062855A1 (fr) 1982-10-20
EP0062855B1 EP0062855B1 (fr) 1986-03-05

Family

ID=6130079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102803A Expired EP0062855B1 (fr) 1981-04-13 1982-04-02 Dispositif de régulation pour un dispositif de chauffage à gaz pour eau ou air

Country Status (6)

Country Link
US (1) US4436506A (fr)
EP (1) EP0062855B1 (fr)
JP (1) JPS57183447U (fr)
CA (1) CA1209898A (fr)
DE (2) DE3114954A1 (fr)
DK (1) DK161682A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154361A1 (fr) * 1984-02-08 1985-09-11 Veg-Gasinstituut N.V. Brûleur à gaz
EP0322132A1 (fr) * 1987-12-03 1989-06-28 British Gas plc Dispositif à brûleur au fuel et une méthode de contrôle
EP3126748A4 (fr) * 2014-03-07 2017-12-27 Lau, James H. Système de chauffage

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553924A (en) * 1982-08-12 1985-11-19 Westinghouse Electric Corp. Jackshaft controlled boiler combustion control system
US4492559A (en) * 1983-11-14 1985-01-08 The Babcock & Wilcox Company System for controlling combustibles and O2 in the flue gases from combustion processes
DE3517471A1 (de) * 1984-05-19 1985-11-28 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Regelung fuer das brennstoff-luftverhaeltnis einer brennstoffbeheizten waermequelle
US4645450A (en) * 1984-08-29 1987-02-24 Control Techtronics, Inc. System and process for controlling the flow of air and fuel to a burner
AT391195B (de) * 1987-09-21 1990-08-27 Vaillant Gmbh Verfahren zur verbrennung fluessiger oder gasfoermiger brennstoffe und vorrichtung zur durchfuehrung des verfahrens
DE4317981A1 (de) * 1993-05-28 1994-12-01 Ranco Inc Gas-Luft-Verhältnisregelvorrichtung für einen Temperaturregelkreis für Gasverbrauchseinrichtungen
TW294771B (fr) * 1995-01-30 1997-01-01 Gastar Co Ltd
US6213758B1 (en) 1999-11-09 2001-04-10 Megtec Systems, Inc. Burner air/fuel ratio regulation method and apparatus
US7017518B2 (en) * 2002-03-11 2006-03-28 Gary Zolnierz Device and method for reducing spillage in and around a dog bowl
US7695275B2 (en) * 2004-06-02 2010-04-13 Fuel Management, Inc. Air:fluid distribution system and method
JP5039651B2 (ja) * 2008-07-08 2012-10-03 三菱重工業株式会社 排ガス中の二酸化炭素回収システム
EP2850364B8 (fr) * 2012-03-29 2021-10-06 Pureteq As Dispositif brûlant un combustible liquide
US9488373B2 (en) 2014-03-06 2016-11-08 Progreen Labs, Llc Treatment device of a heating system
JP6545554B2 (ja) * 2015-07-17 2019-07-17 リンナイ株式会社 燃焼装置
US10605465B2 (en) * 2015-10-28 2020-03-31 Robertshaw Controls Company System and method for using alternative energy source for hot water heater storage tank
US11592174B2 (en) * 2018-07-25 2023-02-28 Haier Us Appliance Solutions, Inc. Gas burner with a pneumatic actuating injet
US20200032997A1 (en) * 2018-07-25 2020-01-30 Haier Us Appliance Solutions, Inc. Gas burner with a compact injet

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549089A (en) * 1968-07-26 1970-12-22 Hays Corp Method and means for trimming position control members
US3960320A (en) * 1975-04-30 1976-06-01 Forney Engineering Company Combustion optimizer
US4034911A (en) * 1975-12-04 1977-07-12 Emerson Electric Co. Burner control system
FR2426865A1 (fr) * 1978-05-22 1979-12-21 Leblanc Sa E L M Perfectionnements apportes aux dispositifs de securite des generateurs d'eau chaude a gaz
WO1980001603A1 (fr) * 1979-01-31 1980-08-07 Jydsk Varmekedelfab As Methode et appareil de regulation de la combustion dans un four
EP0036613A1 (fr) * 1980-03-20 1981-09-30 Honeywell B.V. Dispositif de régulation pour un échauffeur à eau ou air à combustion gazeuse pouvant être commandé par un capteur de température

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549089A (en) * 1968-07-26 1970-12-22 Hays Corp Method and means for trimming position control members
US3960320A (en) * 1975-04-30 1976-06-01 Forney Engineering Company Combustion optimizer
US4034911A (en) * 1975-12-04 1977-07-12 Emerson Electric Co. Burner control system
FR2426865A1 (fr) * 1978-05-22 1979-12-21 Leblanc Sa E L M Perfectionnements apportes aux dispositifs de securite des generateurs d'eau chaude a gaz
WO1980001603A1 (fr) * 1979-01-31 1980-08-07 Jydsk Varmekedelfab As Methode et appareil de regulation de la combustion dans un four
EP0036613A1 (fr) * 1980-03-20 1981-09-30 Honeywell B.V. Dispositif de régulation pour un échauffeur à eau ou air à combustion gazeuse pouvant être commandé par un capteur de température

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154361A1 (fr) * 1984-02-08 1985-09-11 Veg-Gasinstituut N.V. Brûleur à gaz
EP0322132A1 (fr) * 1987-12-03 1989-06-28 British Gas plc Dispositif à brûleur au fuel et une méthode de contrôle
EP3126748A4 (fr) * 2014-03-07 2017-12-27 Lau, James H. Système de chauffage

Also Published As

Publication number Publication date
US4436506A (en) 1984-03-13
EP0062855B1 (fr) 1986-03-05
CA1209898A (fr) 1986-08-19
DE3269552D1 (en) 1986-04-10
JPS57183447U (fr) 1982-11-20
DE3114954A1 (de) 1982-11-04
DK161682A (da) 1982-10-14

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