EP0400757B1 - Gasheizgerät - Google Patents

Gasheizgerät Download PDF

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Publication number
EP0400757B1
EP0400757B1 EP19900201382 EP90201382A EP0400757B1 EP 0400757 B1 EP0400757 B1 EP 0400757B1 EP 19900201382 EP19900201382 EP 19900201382 EP 90201382 A EP90201382 A EP 90201382A EP 0400757 B1 EP0400757 B1 EP 0400757B1
Authority
EP
European Patent Office
Prior art keywords
valve
flue
fan
self
weight
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
EP19900201382
Other languages
English (en)
French (fr)
Other versions
EP0400757A2 (de
EP0400757A3 (de
Inventor
Pouwel Jelte Gelderloos
Antoon Gerard Zomerdijk
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.)
REMEHA FABRIEKEN BV
Original Assignee
REMEHA FABRIEKEN 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
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Application filed by REMEHA FABRIEKEN BV filed Critical REMEHA FABRIEKEN BV
Publication of EP0400757A2 publication Critical patent/EP0400757A2/de
Publication of EP0400757A3 publication Critical patent/EP0400757A3/de
Application granted granted Critical
Publication of EP0400757B1 publication Critical patent/EP0400757B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L13/00—Construction of valves or dampers for controlling air supply or draught
    • F23L13/02—Construction of valves or dampers for controlling air supply or draught pivoted about a single axis but having not other movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L11/00—Arrangements of valves or dampers after the fire
    • F23L11/005—Arrangements of valves or dampers after the fire for closing the flue during interruption of burner function
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/005—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues using fans

Definitions

  • the invention relates to a gas-fired heating apparatus, as described in the pre-characterizing part of claim 1.
  • the invention aims to improve such an apparatus shown in EP-A-333 297 (document according to Article 54 (3) EPC) in respect of the operation of a pilot light.
  • the invention aims to overcome the drawbacks mentioned.
  • the shaft on which the valve is mounted may be mounted rotatably and asymmetrically in the flue.
  • the valve may comprise an "additional" weight, mounted on the long side of the asymetrically arranged valve.
  • the centre of gravity of the valve and the weight together is above the horizontal plane containing the shaft.
  • a proper unstable valve action is effected in response to the small differences in pressure which occur.
  • a valve support may be mounted in the flue.
  • a stop may be mounted in the flue so as to ensure the valve will assume a proper "open" position.
  • an air passage may be provided in the flue downstream of the self-acting valve, which creates a "by-pass" effect.
  • the fan may be arranged in the flue downstream of the self-acting valve and the air passage may be arranged upstream of the fan. This permits the use of a reduced pressure throughout the system, so that problems of leakage will be avoided.
  • the self-acting valve and the air passage referred to may be of such construction that when the valve is opened the air passage is completely or partly shut off.
  • the advantage is obtained that a smaller fan will suffice since during the burning process the valve will be open and the by-pass will be shut off.
  • a heating apparatus as shown in EP-A-333297 comprises a heat exchanger 1 with fins 2 and a water compartment 3.
  • a water compartment 3 To the water compartment 3 connect an inlet 4 and, diametrically opposite, an outlet 5, both omitted for the sake of clarity.
  • injectors 7, a manifold 8 and a gas supply duct 9 Arranged upstream of a burner 6 are injectors 7, a manifold 8 and a gas supply duct 9.
  • the injectors 7 and the burner 6 are arranged in a body 10 whose inner wall has an insulating lining 11 applied to it.
  • a pilot light 22 In the vicinity of the burner a pilot light 22 is provided.
  • the top of the heat exchanger 1 is closed with a hood 12 in which an opening is provided above which a fan 13 is arranged whose outlet connects to a flue 14 for burnt gases.
  • the whole arrangement is accommodated in a housing or box 15 in which an air supply opening is provided (not shown).
  • a valve 16 is mounted in the flue 14 .
  • the furnace is closed at the top with a drum provided with an insulating cover 20.
  • the valve 16 is mounted on a shaft 17 rotatably mounted in the wall of the flue 14.
  • the shaft 17 is mounted asymmetrically in the flue 14.
  • a weight 18 is mounted on the upper side of the valve, causing the valve to close when no heat is required and the burner is off.
  • the end of the valve 16 that is remote from the shaft 17 has a bend 19.
  • the end portion 19 thus formed, when the valve is in the closed position, rests on a support 20 fixedly attached to the wall of the flue 14.
  • the bent portion 19 ensures that the flue gas flow continues to bring a force to bear on the valve when it is in the fully opened position.
  • the fan 13 When the valve is closed, the fan 13 operates at a lower voltage, for instance of 70 volts, which ensures the burner space is ventilated. This last is of particular importance when there is a pilot light in the burner space. Furthermore, it is thus ensured that the water in the heat exchanger 1 is maintained at a reasonable temperature (for example 70°C), so that upon tapping one need not wait long for hot water to be supplied.
  • the fan will be adjusted to a voltage of 220 volts, which causes the valve 16 to move automatically into the open position under the influence of the difference in pressure.
  • a stop 21 is mounted on the wall of the flue 14 for the weight to engage when the valve is opened.
  • valve has flat edges at its lower and upper side as shown in Fig. 3, which ensures the valve is open widely when in the opened position.
  • FIG. 4 In the embodiments shown in Figs 4 and 5 like parts are designated by like reference numerals. A difference between the apparatus according to Fig. 4 and the apparatus according to Fig. 1 resides in the fact that in the embodiment according to Fig. 4 a fan 30 is provided which is arranged in the air supply duct. The direction of flow is indicated with an arrow.
  • a tubular opening 31 is provided, which creates a by-pass effect in that in such an arrangement a large part of the air supply will be directly discharged via the flue and will thus be prevented from withdrawing any substantial heat from the burner space.
  • sufficient air i.e. oxygen, must be supplied to ensure the pilot light will not choke.
  • the end of the tubular opening 31 terminating in the flue is indicated at 32 and can be shut off by coaction with the top of the weight 18.
  • Fig. 5 shows a variant of the apparatus according to Fig. 4, in which a fan 35 is arranged in the flue 14 again.
  • the valve 16 and the tubular "by-pass" opening 31 are identical to those shown in Fig. 4 and will therefore not be further described here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Air Supply (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Claims (11)

  1. Gasgefeuerter Heizapparat mit einem Feuerraum, der an einer Seite, vorzugsweise an der Unterseite, von einem oder mehreren Brennern (6) begrenzt wird, die durch eine Dauerflamme (22) gezündet werden können; einem Wärmetauscher an der mit einer Haube (12) bedeckten Oberseite, welche den Anschluß an einen Rauchzug (14) für Verbrennungsgase bildet; wobei ein Ventilator (13, 30, 35) in einem Luftzufuhrkanal oder im Rauchzug (14) angeordnet ist, wobei der Ventilator (13, 30, 35) weiterläuft, wenn die Dauerflamme (22) brennt, gekennzeichnet durch ein selbsttätiges Ventil (16), das im Luftzufuhrkanal oder im Rauchzug (14) montiert ist, wobei das Ventil (16) geöffnet wird, wenn der Ventilator (13, 30, 35) mit hoher Geschwindigkeit umläuft, und geschlossen wird, beispielsweise mittels eines Gewichtes (18) oder einer Feder, wenn der Ventilator (13, 30, 35) mit niedriger Geschwindigkeit umläuft.
  2. Apparat nach Anspruch 1, dadurch gekennzeichnet, daß das Ventil (16) mittels einer Welle (17) drehbar montiert ist, die relativ zum Luftzufuhrkanal oder zum Rauchzug (14) und zum Ventil (16) asymmetrisch montiert ist.
  3. Apparat nach Anspruch 2, dadurch gekennzeichnet, daß das Gewicht (18) auf der "langen" Seite des asymmetrisch angeordneten Ventils (16) angeordnet ist, und daß sich der Gesamtschwerpunkt des Ventils (16) und des Gewichtes (18) über der die Welle (17) enthaltenen horizontalen Ebene befindet.
  4. Apparat nach einem oder mehreren vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß das Ventil (16) einen Knick oder eine Biegung (19) aufweist.
  5. Apparat nach Anspruch 4, dadurch gekennzeichnet, daß der Knick oder die Biegung (19) auf der "langen" Seite des Ventils (16) gebildet ist.
  6. Apparat nach Anspruch 5, dadurch gekennzeichnet, daß ein Ventilträger oder Ventilsitz (20) im Rauchzug (14) montiert ist.
  7. Apparat nach einem oder mehreren vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß ein Anschlag (21) für das Gewicht (18) des Ventils (16) im Rauchzug (14) montiert ist.
  8. Apparat nach Anspruch 1, bei dem der Ventilator (30) im Luftzufuhrkanal montiert ist, dadurch gekennzeichnet, daß ein Luftdurchgang (31) im Rauchzug (14) stromabwärts des selbsttätigten Ventils (16) vorgesehen ist.
  9. Apparat nach Anspruch 1, bei dem der Ventilator (35) im Rauchgaszug montiert ist, dadurch gekennzeichnet, daß der Ventilator (35) im Rauchgaszug stromabwärts des selbsttätigten Ventils (16) montiert ist, und ein Durchgang (31) stromaufwärts des Ventilators (35) vorgesehen ist.
  10. Apparat nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß der Durchgang (31) einstellbare Schließeinrichtungen aufweist.
  11. Apparat nach Anspruch 8, 9 oder 10, dadurch gekennzeichnet, daß das selbsttätigte Ventil (16) und der Luftdurchgang (31) so gestaltet sind, daß der Luftdurchgang (31) teilweise oder ganz geschlossen ist, wenn das Ventil (16) geöffnet wird.
EP19900201382 1989-05-30 1990-05-30 Gasheizgerät Expired - Lifetime EP0400757B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8901363A NL8901363A (nl) 1989-05-30 1989-05-30 Gasgestookt verwarmingstoestel.
NL8901363 1989-05-30

Publications (3)

Publication Number Publication Date
EP0400757A2 EP0400757A2 (de) 1990-12-05
EP0400757A3 EP0400757A3 (de) 1992-01-08
EP0400757B1 true EP0400757B1 (de) 1994-08-03

Family

ID=19854741

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900201382 Expired - Lifetime EP0400757B1 (de) 1989-05-30 1990-05-30 Gasheizgerät

Country Status (3)

Country Link
EP (1) EP0400757B1 (de)
DE (1) DE69011218T2 (de)
NL (1) NL8901363A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1001996C2 (nl) * 1995-12-28 1997-07-02 Remeha Fabrieken Bv Klep en een verwarmingstoestel voorzien van een dergelijke klep.
AT407434B (de) * 1998-11-30 2001-03-26 Vaillant Gmbh Wärmetauscherdichtung
GB2379974A (en) * 2001-08-30 2003-03-26 Magiglo Ltd An extractor unit which contains a pivoting baffle to prevent reverse draughts
CN103604215B (zh) * 2013-11-08 2016-06-08 威能(无锡)供热设备有限公司 烟罩及采用该烟罩的燃气热水设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2179940A (en) * 1935-11-23 1939-11-14 John F Lawson Automatic damper
US2388073A (en) * 1941-04-29 1945-10-30 Gen Electric Fluid flow control
FR2337317A1 (fr) * 1975-12-30 1977-07-29 Saunier Duval Dispositif de securite pour appareil de chauffage a gaz
US4262608A (en) * 1979-06-14 1981-04-21 Jackson Bert W Method and apparatus for powered flue products exhaust and preheated combustion air supply
DE3046350A1 (de) * 1979-09-07 1982-07-22 Otto 8898 Schrobenhausen Eppinger Nebenoeffnung mit rohrleitungsanschluss z. verhinderung einer kaminversottung b. brennerstillstand, die durch schliessen des sperrsystems geoeffnet wird u. durch das oeffnen des sperrsystems geschlossen wird
US4408567A (en) * 1981-02-03 1983-10-11 Morton Michael S Furnace construction
JPS61205723A (ja) * 1985-03-11 1986-09-11 Matsushita Electric Ind Co Ltd 強制給排気装置

Also Published As

Publication number Publication date
DE69011218T2 (de) 1994-12-08
EP0400757A2 (de) 1990-12-05
DE69011218D1 (de) 1994-09-08
EP0400757A3 (de) 1992-01-08
NL8901363A (nl) 1990-12-17

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