EP0062855B1 - Regeleinrichtung für einen gasbefeuerten Wasser- oder Lufterhitzer - Google Patents

Regeleinrichtung für einen gasbefeuerten Wasser- oder Lufterhitzer Download PDF

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Publication number
EP0062855B1
EP0062855B1 EP82102803A EP82102803A EP0062855B1 EP 0062855 B1 EP0062855 B1 EP 0062855B1 EP 82102803 A EP82102803 A EP 82102803A EP 82102803 A EP82102803 A EP 82102803A EP 0062855 B1 EP0062855 B1 EP 0062855B1
Authority
EP
European Patent Office
Prior art keywords
gas
air
burner
control device
control 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.)
Expired
Application number
EP82102803A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0062855A1 (de
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/de
Application granted granted Critical
Publication of EP0062855B1 publication Critical patent/EP0062855B1/de
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 known from WO-A-80 01 603 comprises a program control device which, on the input side, is connected to an oxygen sensor or carbon dioxide sensor and, on the other hand, to a signal transmitter controlled as a function of the position of the fuel valve is connected and at its output provides a control signal for the speed of the blower motor supplying the combustion air, depending on the input variables mentioned.
  • the fuel valve is in turn controlled as a function of the output signal of a temperature sensor immersed in the heating water circuit and thus as a function of the heat requirement.
  • Blower motors usually only run at a certain nominal speed with optimal efficiency, and their speed can usually only be changed within a limited speed range.
  • the amount of combustion air is always tracked with a delay in the respective setting of the fuel valve, so that optimal combustion is not guaranteed, at least during the transition times.
  • EP-A-00 36 613 (published September 30, 1981), which has a higher priority, describes a control device for a gas-fired water or air heater in which a servo pressure controller controlled by a temperature sensor is provided for the simultaneous control of gas supply and combustion air supply to a burner , which acts on the one hand the diaphragm drive of a gas control valve and on the other hand an actuator influencing the combustion air supply.
  • Gas is fed to the burner via an injector nozzle, which also draws in primary air.
  • a second injector nozzle is arranged in front of a secondary air inlet of the burner housing and is fed by a controllable compressed air source in the form of a fan with a downstream air control valve.
  • the invention aims to create a water or air heater that can be fired with gas of different Wobbe index.
  • the best possible combustion should always be maintained without delay, even with changing heat requirements.
  • This object is achieved by the control device characterized in claim 1.
  • the burner always optimal, d. 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 blower is always operated in the optimal and thus energy-saving speed range, and the servo pressure regulator automatically regulates any fluctuations in the pressure generated by the blower.
  • the setpoint of the pressure regulator is adapted without delay to the respective fuel throughput in the sense of optimal combustion via the electromagnetic drive.
  • the heat exchanger 1 ′ of a water heater or boiler 2 is heated by a main burner 3, which has a pilot burner 4 and a thermocouple 5 monitoring the pilot flame 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 company publication D3H-29 Honeywell “Compact Valves V4600 ⁇ / 8600 • 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 tube 14, which is designed in the manner of a burner tube 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 provides for producing an artificial draft in the flue gas outlet 21 or chimney.
  • the air pressure supplied to the nozzle 22 can be adjusted by means of a throttle 23 connected to 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 contact 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 compared with a setpoint which is predetermined on the electric controller 32 or which can be set by means of setpoint generator 33. If the oxygen content or the CO 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.

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 Regeleinrichtung für einen gasbefeuerten Wasser- oder Lufterhitzer Expired EP0062855B1 (de)

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 EP0062855A1 (de) 1982-10-20
EP0062855B1 true EP0062855B1 (de) 1986-03-05

Family

ID=6130079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102803A Expired EP0062855B1 (de) 1981-04-13 1982-04-02 Regeleinrichtung für einen gasbefeuerten Wasser- oder Lufterhitzer

Country Status (6)

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

Families Citing this family (20)

* 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
NL8400406A (nl) * 1984-02-08 1985-09-02 Veg Gasinstituut Nv Gasbrander.
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
GB2214666B (en) * 1987-12-03 1992-04-08 British Gas Plc Fuel burner apparatus and a method of control
DE4317981A1 (de) * 1993-05-28 1994-12-01 Ranco Inc Gas-Luft-Verhältnisregelvorrichtung für einen Temperaturregelkreis für Gasverbrauchseinrichtungen
TW294771B (enExample) * 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 (en) * 2012-03-29 2021-10-06 Pureteq As DEVICE FOR LIQUID FUEL COMBUSTION
US9488373B2 (en) 2014-03-06 2016-11-08 Progreen Labs, Llc Treatment device of a heating system
US9593857B2 (en) * 2014-03-07 2017-03-14 ProGreen Labs, LLC. 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
US20200032997A1 (en) * 2018-07-25 2020-01-30 Haier Us Appliance Solutions, Inc. Gas burner with a compact injet
US11592174B2 (en) * 2018-07-25 2023-02-28 Haier Us Appliance Solutions, Inc. Gas burner with a pneumatic actuating injet

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB925772A (en) 1961-02-11 1963-05-08 Perkins Boilers Ltd Improvements in and relating to heating appliances such as hot water boilers, space heating stoves and cookers
GB1077551A (en) 1964-04-07 1967-08-02 Elliott Brothers London Ltd Improvements relating to the control of steam generators
FR1453519A (fr) 1965-08-14 1966-06-03 Bailey Controle Chaîne de régulation pour combustion de mazout à très faible excès d'air
GB1235891A (en) 1968-03-30 1971-06-16 Wilkins & Mitchell Ltd Improvements in or relating to gas heaters
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
US4330260A (en) * 1979-01-31 1982-05-18 Jorgensen Lars L S Method and apparatus for regulating the combustion in a furnace
US4251025A (en) 1979-07-12 1981-02-17 Honeywell Inc. Furnace control using induced draft blower and exhaust stack flow rate sensing
US4254796A (en) 1979-10-18 1981-03-10 Robertshaw Controls Company Gas regulator valve with step opening characteristic
EP0036613B1 (de) * 1980-03-20 1984-06-06 Honeywell B.V. Durch einen Temperaturfühler steuerbare Regeleinrichtung für einen gasbefeuerten Wasser- oder Lufterhitzer
DE3015980A1 (de) 1980-04-25 1981-11-05 Honeywell B.V., Amsterdam Gasdruckregler

Also Published As

Publication number Publication date
DK161682A (da) 1982-10-14
US4436506A (en) 1984-03-13
CA1209898A (en) 1986-08-19
JPS57183447U (enExample) 1982-11-20
DE3269552D1 (en) 1986-04-10
EP0062855A1 (de) 1982-10-20
DE3114954A1 (de) 1982-11-04

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