DE3568858D1 - Fuel/air ratio regulation device for a fuel-fired heat source - Google Patents

Fuel/air ratio regulation device for a fuel-fired heat source

Info

Publication number
DE3568858D1
DE3568858D1 DE8585103055T DE3568858T DE3568858D1 DE 3568858 D1 DE3568858 D1 DE 3568858D1 DE 8585103055 T DE8585103055 T DE 8585103055T DE 3568858 T DE3568858 T DE 3568858T DE 3568858 D1 DE3568858 D1 DE 3568858D1
Authority
DE
Germany
Prior art keywords
fuel
heat source
sensors
air
air ratio
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
DE8585103055T
Other languages
German (de)
Inventor
Detlef Friedrichs
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.)
Vaillant Austria GmbH
Cofrabel Nv
SCHONEWELLE BV
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
Original Assignee
Vaillant Austria GmbH
Cofrabel Nv
SCHONEWELLE BV
Joh Vaillant GmbH and Co
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
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 Austria GmbH, Cofrabel Nv, SCHONEWELLE BV, Joh Vaillant GmbH and Co, Vaillant GmbH, Vaillant SARL, Vaillant Ltd filed Critical Vaillant Austria GmbH
Priority to DE8585103055T priority Critical patent/DE3568858D1/en
Application granted granted Critical
Publication of DE3568858D1 publication Critical patent/DE3568858D1/en
Expired 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
    • F23N1/02—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)
  • Control Of Combustion (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (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.
DE8585103055T 1984-03-30 1985-03-16 Fuel/air ratio regulation device for a fuel-fired heat source Expired DE3568858D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8585103055T DE3568858D1 (en) 1984-03-30 1985-03-16 Fuel/air ratio regulation device for a fuel-fired heat source

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8409840 1984-03-30
DE8585103055T DE3568858D1 (en) 1984-03-30 1985-03-16 Fuel/air ratio regulation device for a fuel-fired heat source

Publications (1)

Publication Number Publication Date
DE3568858D1 true DE3568858D1 (en) 1989-04-20

Family

ID=6765345

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585103055T Expired DE3568858D1 (en) 1984-03-30 1985-03-16 Fuel/air ratio regulation device for a fuel-fired 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
ATE41501T1 (en) 1989-04-15
EP0158842A1 (en) 1985-10-23
EP0158842B1 (en) 1989-03-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee