EP0479216B1 - Dispositif de chauffage - Google Patents

Dispositif de chauffage Download PDF

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Publication number
EP0479216B1
EP0479216B1 EP91116718A EP91116718A EP0479216B1 EP 0479216 B1 EP0479216 B1 EP 0479216B1 EP 91116718 A EP91116718 A EP 91116718A EP 91116718 A EP91116718 A EP 91116718A EP 0479216 B1 EP0479216 B1 EP 0479216B1
Authority
EP
European Patent Office
Prior art keywords
gas
gas supply
supply tube
sensing
heating appliance
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 - Lifetime
Application number
EP91116718A
Other languages
German (de)
English (en)
Other versions
EP0479216A1 (fr
Inventor
Peter Goebel
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.)
N.V. VAILLANT S.A.
Vaillant Austria GmbH
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
Original Assignee
Vaillant Austria GmbH
Nv Vaillant Sa
Joh Vaillant GmbH and Co
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
Vaillant 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
Priority claimed from AT71091A external-priority patent/AT396823B/de
Priority claimed from AT70991A external-priority patent/AT395774B/de
Application filed by Vaillant Austria GmbH, Nv Vaillant Sa, Joh Vaillant GmbH and Co, Vaillant GmbH, Vaillant SARL, Vaillant Ltd, Vaillant BV filed Critical Vaillant Austria GmbH
Publication of EP0479216A1 publication Critical patent/EP0479216A1/fr
Application granted granted Critical
Publication of EP0479216B1 publication Critical patent/EP0479216B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors

Definitions

  • the invention relates to a heating device with a burner with a gas mixture formation tube, which has a gas supply tube provided with a gas nozzle, which projects into the gas mixture formation tube through an air inlet thereof and in which a pressure measuring point for detecting the mixture pressure is arranged, which is connected via a measuring tube a gas valve is connected.
  • the aim of the invention is to avoid these disadvantages and to propose a heating device of the type mentioned at the outset which is distinguished by a simple structure.
  • the measuring channel is arranged on the gas supply pipe or is integrated into the latter and runs parallel to it.
  • the measuring channel ends in the region of the end face of the gas nozzle.
  • a diaphragm which more or less opens the air inlet is held axially displaceably.
  • Another object of the invention is to design a heating device according to the invention in such a way that only a small assembly effort is required for its assembly. In addition, sufficiency should be found with a minimum of seals.
  • connection plate makes it possible to pre-assemble the connection plate during manufacture and to connect the corresponding lines to the connection plate already in the course of production, so that the lines only have to be fitted accordingly with their second ends during assembly.
  • proposed measures also make it possible to assemble the gas fitting very easily and, if necessary, to dismantle it again, since it is only necessary to separate the gas fitting from the connection plate and fasten it again.
  • connection head is arranged on the side of the connection plate opposite the gas fitting, in which the gas inlet, the channel leading to the gas supply pipe and the channels leading to the various pressure measuring points are incorporated.
  • connection points for the individual lines can be made very accessible.
  • various channels that transmit the pressures at different measuring points directly into the connection head.
  • the channel transmitting the pressure of the inflowing gas can be branched off directly from the gas inlet.
  • the same also applies to a channel transmitting the pressure in a channel leading to the gas supply pipe.
  • the measuring channel is arranged essentially centrally in the gas supply pipe and is preferably held axially adjustable.
  • the adjustable mounting of the measuring tube also enables adaptation to the respective conditions.
  • At least one gas mixture formation tube 2 is arranged in a vacuum chamber 1, in the wall of which a temperature sensor 3 is arranged, with which the temperature of the mixture located in the gas mixture formation tube 2 can be detected.
  • the end wall 5 of the gas mixture formation tube 2 opposite the wall 4 of the vacuum chamber 1 is provided with an air inlet 12 which is penetrated by a gas feed tube 6 with considerable play, so that an annular air inlet 12 remains.
  • a measuring channel 7 is arranged on the gas feed pipe 6 in its lower region, which is connected to the gas feed pipe 6 and runs parallel to the latter.
  • This measuring channel 7 is formed by a tube which is connected to the gas supply tube 6 along jacket lines and bears against its outer jacket surface along a jacket line.
  • This tube forming the measuring channel 7 leads via a connection head 8 to a connection plate 9, on the side of which is remote from the connection head 8, a gas fitting 10 is arranged.
  • an aperture 11 is held so as to be displaceable in the axial direction in order to open the air inlet 12 to a greater or lesser extent.
  • the orifice 11 is adjustable by means of a motor 13 which can be controlled as a function of the temperature of the mixture in the gas mixture formation tube 2, which temperature is measured by means of the temperature sensor 3.
  • connection head 8 tightly covers an opening 14 of the wall 4 of the vacuum chamber 1, a channel 15 being incorporated in the connection head 8, via which the pressure in the vacuum chamber 1 is supplied to the gas valve 10.
  • the gas supply pipe 6 connects a gas channel 16 incorporated in the connection head 8 to the gas mixture formation pipe 2, the gas supply pipe ending in a nozzle 17 from which the gas jet flows into the gas mixture formation pipe 2 and mixes with the air which flows in via the air inlet 12.
  • the air is supplied by a speed-controlled fan, not shown.
  • a preferably electrically operated heat exchanger or gas heater 18 is arranged in the gas channel 16, which makes it possible to heat the gas to a corresponding temperature of, for example, 80 ° C. or to heat it to a value which corresponds to the temperature to which the temperature sensor 3 responds to ensure the consistency of the mixture as far as possible in every operating state of the burner.
  • the nozzle pressure is removed in the gas channel 16 via a pressure channel 19 arranged in the connection head 8 and fed to the gas valve 10, which also the mixture pressure via the measuring channel 7 is supplied, which sets in the gas mixture formation tube 2.
  • the gas valve is also the gas pressure, which is removed from the gas inlet 20, which also leads to the gas valve 10, and supplied via a further pressure channel 21 arranged in the connection head 8.
  • connection plate 9 is fastened to one side of the connection plate 9 and to the other side of the connection plate 9 the connection head 8, into which the lines leading to the vacuum chamber 1 and the gas connection open, which makes it very simple Montage results.
  • a seal 25 is interposed between the connection plate 9, which is provided with corresponding channels and passages, and the connection head 8. These channels and passages of the connection plate 9 are aligned with the channels 15, 16, 19, 7, 21 and 20, which are arranged in the connection head 8.
  • the embodiment of Figure 2 differs from that of Figure 1 in that the measuring channel 7 'is arranged centrally in the gas supply pipe 6.
  • the measuring channel 7 ' is held in an adjustable receptacle 27 with which the measuring channel 7' axially is adjustable. This enables adaptation to the respective flow conditions.
  • FIG. 3 shows a detail of a further exemplary embodiment of the invention, by means of which the direct transmission of the structure-borne noise caused by a blower (not shown) to the heating device is prevented.
  • the embodiment shown in FIG. 3 with integrated differential pressure absorption in the mixture formation tube 2, to which the blower (not shown) is connected on the suction side, allows a tolerance range for the setting of the gas feed tube 6 without different values arising after service work.
  • the diaphragm 11 is set at a fixed distance from the inlet of the mixture formation tube 2 by means of screws and spacer elements 24 which are adjustably held thereon and which can be formed, for example, by nuts or also springs, in particular compression springs rigidly connected.
  • This distance can be set after the corresponding data have been determined by experiment, and this value can be varied depending on the desired device power and the necessary minimum effective pressure over the orifice 11 with a minimum device power.
  • the aperture 11 is provided with an elastomer ring 28, which seals the gap between a metallic aperture ring 27 and the gas supply pipe 6 that is necessary in terms of production technology and facilitates displacement of the aperture 11 during service, the aperture 11 being sealed by the metallic aperture ring 27 and the elastomer ring 28 is formed.
  • the elastomer ring 28 is provided with a circumferential groove 29 on its outer circumferential surface, in which the metallic diaphragm ring 27 engages.
  • the bore of the elastomer ring, which is penetrated by the gas supply pipe 6, has a diameter that is smaller than the outer diameter of the gas supply pipe 6.

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)
  • Measuring Fluid Pressure (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Baking, Grill, Roasting (AREA)
  • Resistance Heating (AREA)

Claims (7)

  1. Equipement de chauffage avec un brûleur avec un tube mélangeur (2) muni d'un tube d'alimentation en gaz (6) doté d'une buse (17) et qui pénètre dans le tube mélangeur (2) par un orifice d'entrée d'air (12) dudit tube et où est prévue une sonde manométrique reliée par un tube de mesure (7) à un ensemble régulateur d'admission de gaz (10), caractérisé par le fait que le tube de mesure (7) est posé le long du tube d'alimentation en gaz (6) ou y est intégré, parallèlement audit tube d'alimentation.
  2. Equipement de chauffage suivant la revendication 1, caractérisé par le fait que le tube de mesure (7) se termine à proximité de la face avant de la buse de gaz (17).
  3. Equipement de chauffage suivant la revendication 1 ou 2, caractérisé par le fait qu'il est prévu un étrangleur mobile (11) sur le tube d'alimentation en gaz (6), muni du tube de mesure (7), qui peut être déplacé axialement pour dégager plus ou moins l'entrée d'air (12).
  4. Equipement de chauffage suivant l'une des revendications 1 à 3, caractérisé par le fait que l'ensemble régulateur d'admission de gaz (10) est monté sur une face d'une plaque de raccordement (9) sur l'autre face de laquelle sont prévus l'entrée de gaz (20), un alésage (16) aboutissant au tube d'alimentation en gaz (6) et les alésages (7, 15, 19, 21) se terminant aux différents points de mesure.
  5. Equipement de chauffage suivant la revendication 4, caractérisé par le fait qu'il est prévu sur la face de la plaque de raccordement (9), ne regardant pas l'ensemble régulateur d'admission (10), une tête de raccordement (8) dans laquelle sont intégrés l'entrée de gaz (20), l'alésage (16) aboutissant au tube d'alimentation en gaz (6) et les alésages (7, 15, 19, 21) se terminant aux différents points de mesure.
  6. Equipement de chauffage suivant la revendication 1, caractérisé par le fait que le tube de mesure (7′) est disposé plus ou moins centralement dans le tube d'alimentation en gaz (6) et peut être réglé de préférence axialement.
  7. Equipement de chauffage suivant la revendication 1 ou 2, caractérisé par le fait que l'étrangleur (11) comprend un cercle (27) entourant le tube d'alimentation en gaz (6) avec un jeu important et qui est solidaire d'une bague d'élastomère (28) rendant étanche la fente entre le diamètre intérieur du cercle (27) et le tube d'alimentation (6) et dont le diamètre intérieur est inférieur au diamètre extérieur dudit tube (6).
EP91116718A 1990-10-03 1991-09-30 Dispositif de chauffage Expired - Lifetime EP0479216B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE9013930 1990-10-03
DE9013930U 1990-10-03
AT709/91 1991-04-04
AT710/91 1991-04-04
AT71091A AT396823B (de) 1991-04-04 1991-04-04 Heizeinrichtung mit einer gasarmatur
AT70991A AT395774B (de) 1991-04-04 1991-04-04 Heizeinrichtung

Publications (2)

Publication Number Publication Date
EP0479216A1 EP0479216A1 (fr) 1992-04-08
EP0479216B1 true EP0479216B1 (fr) 1994-06-08

Family

ID=27146637

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91116718A Expired - Lifetime EP0479216B1 (fr) 1990-10-03 1991-09-30 Dispositif de chauffage

Country Status (3)

Country Link
EP (1) EP0479216B1 (fr)
AT (1) ATE107012T1 (fr)
DE (2) DE9112281U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401197B (de) * 1993-08-26 1996-07-25 Vaillant Gmbh Heizeinrichtung
AT400356B (de) * 1993-11-08 1995-12-27 Vaillant Gmbh Gebläsebrenner

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1113532B (de) * 1957-11-15 1961-09-07 Licentia Gmbh Strahlapparat, der der Herstellung eines Brenngemisches dient
DE2708858C2 (de) * 1977-03-01 1986-04-24 Caloric Gesellschaft für Apparatebau mbH, 8032 Gräfelfing Regeleinrichtung für einen Brenner für fließfähige Brennstoffe

Also Published As

Publication number Publication date
DE9112281U1 (fr) 1991-12-12
DE59101852D1 (de) 1994-07-14
ATE107012T1 (de) 1994-06-15
EP0479216A1 (fr) 1992-04-08

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