ATE41501T1 - CONTROL DEVICE FOR THE FUEL-AIR RATIO OF A FUEL-HEATED HEAT SOURCE. - Google Patents

CONTROL DEVICE FOR THE FUEL-AIR RATIO OF A FUEL-HEATED HEAT SOURCE.

Info

Publication number
ATE41501T1
ATE41501T1 AT85103055T AT85103055T ATE41501T1 AT E41501 T1 ATE41501 T1 AT E41501T1 AT 85103055 T AT85103055 T AT 85103055T AT 85103055 T AT85103055 T AT 85103055T AT E41501 T1 ATE41501 T1 AT E41501T1
Authority
AT
Austria
Prior art keywords
fuel
heat source
sensors
air
air ratio
Prior art date
Application number
AT85103055T
Other languages
German (de)
Inventor
Detlef Friedrichs
Original Assignee
Vaillant Gmbh
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 Vaillant Gmbh filed Critical Vaillant Gmbh
Application granted granted Critical
Publication of ATE41501T1 publication Critical patent/ATE41501T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F23N1/025—Regulating fuel supply conjointly with air supply using electrical or electromechanical means
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/16—Measuring bridge
    • 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
    • F23N2225/10—Measuring temperature stack 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
    • F23N2225/20—Measuring temperature entrant temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/02—Ventilators in stacks
    • F23N2233/04—Ventilators in stacks with variable speed

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)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Control Of Combustion (AREA)

Abstract

1. An apparatus for automatically controlling the fuel-air ratio of a fuel-firing heat source (1) comprising sensor means (40) for determining an actual value in dependence on at least the supply air, and a controller (11), which in dependence on the actual value and on a set point obtained from a set point generator (48) controls a final control element (17) for the control of the fresh air which is flowing to the heat source, characterized in that the sensor means consist of four temperature sensors, two of which constitute measuring sensors (21, 30), which are associated with the supply air path (14) and with the exhaust gas path (13) of the heat source (1), whereas the two others constitute temperature-compensating sensors (32, 33) for detecting temperature changes of the incoming fesh air and of the exhaust gas resulting from load changes, and that the temperature sensors consist of measuring resistors and are arranged in arms of a Wheatstone bridge (40) having one branch (41, 42) which is constituted by the two measuring resistors and another branch which is constituted by the two compensating resistors.
AT85103055T 1984-03-30 1985-03-16 CONTROL DEVICE FOR THE FUEL-AIR RATIO OF A FUEL-HEATED HEAT SOURCE. ATE41501T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8409840 1984-03-30
EP85103055A EP0158842B1 (en) 1984-03-30 1985-03-16 Fuel/air ratio regulation device for a fuel-fired heat source

Publications (1)

Publication Number Publication Date
ATE41501T1 true ATE41501T1 (en) 1989-04-15

Family

ID=6765345

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85103055T ATE41501T1 (en) 1984-03-30 1985-03-16 CONTROL DEVICE FOR THE FUEL-AIR RATIO OF A FUEL-HEATED HEAT SOURCE.

Country Status (3)

Country Link
EP (1) EP0158842B1 (en)
AT (1) ATE41501T1 (en)
DE (1) DE3568858D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3586643D1 (en) * 1984-08-15 1992-10-22 Vaillant Joh Gmbh & Co METHOD FOR FORMING A SHUT-OFF SIGNAL OF A GAS-HEATED DEVICE.
GB2270748B (en) * 1992-09-17 1995-12-06 Caradon Heating Ltd Burner control system
US5950573A (en) * 1998-10-16 1999-09-14 Srp 687 Pty. Ltd. Power vented water heater with air inlet
DE102020132501A1 (en) * 2020-12-07 2022-06-09 Ebm-Papst Landshut Gmbh Method for controlling a combustion process of a gas boiler and gas boiler

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1770059A (en) * 1929-01-28 1930-07-08 Surface Comb Co Inc Combustion control
GB457111A (en) * 1935-05-20 1936-11-20 Elliott Brothers London Ltd Improvements in or relating to means for indicating or recording the heat loss or thermal efficiency of industrial furnaces and power plants
US2545732A (en) * 1949-03-02 1951-03-20 James W Hamilton Combustion control
US2723559A (en) * 1951-10-09 1955-11-15 Germer Wilhelm Eduard Apparatus for determining optimum operation of a heating plant
US2859617A (en) * 1954-10-22 1958-11-11 Northrop Aircraft Inc Thermal flowmeter
EP0103303A3 (en) * 1982-09-15 1984-06-06 Joh. Vaillant GmbH u. Co. Fuel-heated heat source

Also Published As

Publication number Publication date
DE3568858D1 (en) 1989-04-20
EP0158842B1 (en) 1989-03-15
EP0158842A1 (en) 1985-10-23

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee