EP0245391B1 - Atmospheric premix gas burner - Google Patents

Atmospheric premix gas burner Download PDF

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Publication number
EP0245391B1
EP0245391B1 EP86906771A EP86906771A EP0245391B1 EP 0245391 B1 EP0245391 B1 EP 0245391B1 EP 86906771 A EP86906771 A EP 86906771A EP 86906771 A EP86906771 A EP 86906771A EP 0245391 B1 EP0245391 B1 EP 0245391B1
Authority
EP
European Patent Office
Prior art keywords
burner
gas burner
tube
burner tube
premix gas
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
EP86906771A
Other languages
German (de)
French (fr)
Other versions
EP0245391A1 (en
Inventor
Jürgen Schilling
Thomas Pieper
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 BV
Original Assignee
Vaillant Austria GmbH
Nv Vaillant Sa
Joh Vaillant GmbH and Co
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
SCHONEWELLE 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 Vaillant Austria GmbH, Nv Vaillant Sa, Joh Vaillant GmbH and Co, Vaillant GmbH, Vaillant SARL, Vaillant Ltd, SCHONEWELLE BV filed Critical Vaillant Austria GmbH
Priority to AT86906771T priority Critical patent/ATE62336T1/en
Publication of EP0245391A1 publication Critical patent/EP0245391A1/en
Application granted granted Critical
Publication of EP0245391B1 publication Critical patent/EP0245391B1/en
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
    • F23D14/70—Baffles or like flow-disturbing devices

Definitions

  • the invention relates to an atmospheric premix gas burner according to the preamble of the independent claim.
  • Such an atmospheric premix gas burner is known from US Pat. No. 4,525,141.
  • the tube consists of ceramic material or stainless steel.
  • a burner which has become known, which has pipes with a heat-storing medium flowing through it, which are provided in the flame area of the burner tube with a plurality of gas outlet nozzles, parallel to the burner tube axis, this being the actual one Heat exchanger of a boiler.
  • the premix gas burner comprises at least one heating gas-carrying pipe 1, the wall of which is penetrated by a plurality of sets of gas outlet nozzles 2 and 3. 2 the nozzles of so-called holding flames and 3 the nozzles of the main flames. Fixed points 4 at the front ends of the pipe sections facilitate their correct connection to a pipe string.
  • the heat storage medium e.g. Water
  • leading pipes are marked with 5.
  • three such conduit pipes 5 are provided, which are fastened to the wall of the hot gas-carrying pipe 1 by means of holders 6 of any design, at an optimal distance from this wall in their upper third for cooling the burner flames.
  • the gas outlet nozzles 2 and 3 are arranged on both sides of a pipe 5, namely that the distance from the pipe 1 should be such that it corresponds approximately to the distance of the core of the heating flame 7 from the pipe 1 in order to achieve an energetically optimal To ensure heat exchange.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Abstract

A gas burner comprises a heating gas pipe the wall of which is traversed by at least one group of longitudinally arranged outlet nozzles. These groups of nozzles (2 or 3) are connected with at least one conduit (5) for a heat accumulating agent which is parallel to the heating gas pipe (1).

Description

Die Erfindung bezieht sich auf einen atmosphärischen Vormischgasbrenner gemäß dem Oberbegriff des unabhängigen Patentanspruchs.The invention relates to an atmospheric premix gas burner according to the preamble of the independent claim.

Ein solcher atmosphärischer Vormischgasbrenner ist bekannt aus der US-PS 4 525 141. Bei diesem Stand der Technik besteht das Rohr aus keramischem Material oder rostfreiem Stahl.Such an atmospheric premix gas burner is known from US Pat. No. 4,525,141. In this prior art, the tube consists of ceramic material or stainless steel.

Weiterhin ist aus der FR-OS 2 506 910 ein Brenner bekanntgeworden, der mit einem wärmespeichernden Medium durchströmte Rohrleitungen aufweist, die im Flammenbereich des mit einer Vielzahl von Gasaustrittsdüsen durchsetzten Brennerrohres, parallel zur Brennerrohrachse angeordnet, vesehen sind, wobei es sich hier um den eigentlichen Wärmetauscher eines Kessels handelt.Furthermore, from FR-OS 2 506 910 a burner has become known, which has pipes with a heat-storing medium flowing through it, which are provided in the flame area of the burner tube with a plurality of gas outlet nozzles, parallel to the burner tube axis, this being the actual one Heat exchanger of a boiler.

Ordnet man nun Stäbe aus hitzefestem Material neben den Brennerflammen so am Brenner an, daß sie die Wärme zum Temperaturausgleich aus den heißen Zonen in kühlere Bereiche abstrahlen, wie das bei der eingangs erwähnten US-PS 4 525 141 vorgeschlagen ist, erreicht man zwar damit eine Verringerung des NOx-Gehaltes der Abgase, bei engen Raumverhältnissen werden aber die Flammen derart gestört, daß die CO-Emission ansteigt. Die Stäbe müßten einen größeren Abstand von den flammen aufweisen, wodurch zwar der CO-Gehalt reduziert, der NOx-Gehalt jedoch ansteigen würde.If you now arrange rods made of heat-resistant material next to the burner flames on the burner in such a way that they radiate the heat for temperature compensation from the hot zones into cooler areas, as is proposed in the above-mentioned US Pat. No. 4,525,141, this does indeed achieve one Reduction of the NO x content of the exhaust gases, but in confined spaces, the flames are disturbed in such a way that the CO emission increases. The rods would have to have a greater distance from the flame, whereby although the CO content is reduced, the NO x content, however, would increase.

Es ist Aufgabe der vorliegenden Erfindung, ausgehend von den bekannten Kühlstäben, die flammenwärme möglichst intensiv aus dem heißesten Flammenkern abzuleiten.It is an object of the present invention, based on the known cooling rods, to derive the flame heat as intensively as possible from the hottest flame core.

Erfindungsgemäß wird die Aufgabe gelöst durch die kennzeichnenden Merkmale des unabhängigen Patentanspruchs.According to the invention the object is achieved by the characterizing features of the independent claim.

Nachfolgend ist ein Ausführungsbeispiel der Erfindung anhand der Figuren 1 bis 4 der Zeichnung näher erläutert.An exemplary embodiment of the invention is explained in more detail below with reference to FIGS. 1 to 4 of the drawing.

Im einzelnen zeigtIn detail shows

  • Fig. 1 den Wärmetauscher im Querschnitt,1 shows the heat exchanger in cross section,
  • Fig. 2 ist eine Draufsicht und2 is a top view and
  • Fig. 3 veranschaulicht die erfindungsgemäße Lösung im Prinzip und3 illustrates the solution according to the invention in principle and
  • Fig. 4 eine vergrößerte Ansicht des Brennerrohres.Fig. 4 is an enlarged view of the burner tube.

Der Vormischgasbrenner umfaßt zumindest ein heizgasfrührendes Rohr 1, dessen Wandung von mehreren Scharen von Gasaustrittsdüsen 2 bzw. 3 durchsetzt ist. Mit 2 sind die Düsen sogenannter Halteflammen und mit 3 die Düsen der Hauptflammen bezeichnet. Festpunkte 4 an den Stirn-Enden der Rohrschüsse erleichtern deren korrekte Verbindung zu einem Rohrstrang.The premix gas burner comprises at least one heating gas-carrying pipe 1, the wall of which is penetrated by a plurality of sets of gas outlet nozzles 2 and 3. 2 the nozzles of so-called holding flames and 3 the nozzles of the main flames. Fixed points 4 at the front ends of the pipe sections facilitate their correct connection to a pipe string.

Das wärmespeichernde Medium, z.B. Wasser, führende Leitungsrohre sind mit 5 bezeichnet. Beim dargestellten Ausführungsbeispiel sind drei solche Leitungsrohre 5 vorgesehen, die mittels beliebig gestaltbarer Halterungen 6 an der Wandung des heizgasführenden Rohres 1 in einem für die Kühlung der Brennerflammen in ihrem oberen Drittel optimalen Abstand von dieser Wandung befestigt sind.The heat storage medium, e.g. Water, leading pipes are marked with 5. In the exemplary embodiment shown, three such conduit pipes 5 are provided, which are fastened to the wall of the hot gas-carrying pipe 1 by means of holders 6 of any design, at an optimal distance from this wall in their upper third for cooling the burner flames.

Wie Fig. 4 zeigt, sind die Gasaustrittsdüsen 2 und 3 beidseits jeweils einer Rohrleitung 5 angeordnet, und zwar soll der Abstand vom Rohr 1 so bemessen sein, daß er etwa dem Abstand des Kernes der Heizflammen 7 vom Rohr 1 entspricht, um einen energetisch optimalen Wärmetausch zu gewährleisten.As shown in Fig. 4, the gas outlet nozzles 2 and 3 are arranged on both sides of a pipe 5, namely that the distance from the pipe 1 should be such that it corresponds approximately to the distance of the core of the heating flame 7 from the pipe 1 in order to achieve an energetically optimal To ensure heat exchange.

Selbstverständlich ist der Querschnitt sowohl des Heizgas führenden Rohres 1 als auch der das Wärmetauschmedium führenden Rohrleitungen 5 im Rahmen der Erfindung beliebig abwandelbar ohne vom Grundgedanken der Erfindung abzuweichen.It goes without saying that the cross section of both the pipe 1 carrying heating gas and the pipes 5 carrying the heat exchange medium is within the scope of the invention can be modified as desired without deviating from the basic idea of the invention.

Claims (1)

  1. An atmospheric gas burner for premixed gas comprising a burner tube (1) having a multiplicity of mixed-gas outlet nozzles (2, 3), wherein at least one tube (5) which serves to reduce the flame temperature and thus to reduce the formation of NOx and which is flown through by a heat-storing fluid, such as water, is disposed over the burner tube in the flame region and extends parallel to the longitudinal axis of the burner tube and is secured by holding means (6) to the wall of the burner tube (1) at a distance from the outside thereof.
EP86906771A 1985-11-15 1986-11-17 Atmospheric premix gas burner Expired - Lifetime EP0245391B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86906771T ATE62336T1 (en) 1985-11-15 1986-11-17 ATMOSPHERIC PREMIXED GAS BURNER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3541088 1985-11-15
DE3541088 1985-11-15

Publications (2)

Publication Number Publication Date
EP0245391A1 EP0245391A1 (en) 1987-11-19
EP0245391B1 true EP0245391B1 (en) 1991-04-03

Family

ID=6286411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86906771A Expired - Lifetime EP0245391B1 (en) 1985-11-15 1986-11-17 Atmospheric premix gas burner

Country Status (4)

Country Link
US (1) US4915621A (en)
EP (1) EP0245391B1 (en)
DE (1) DE3678570D1 (en)
WO (1) WO1987003068A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2038336T3 (en) * 1987-11-03 1993-07-16 Joh. Vaillant Gmbh U. Co. WATER HEATER BY CIRCULATION WITH A BURNER.
AT393021B (en) * 1987-12-17 1991-07-25 Vaillant Gmbh DEVICE FOR COOLING A FIRING HEAT EXCHANGER OF A CIRCUIT HEATER
AT391191B (en) * 1987-12-17 1990-08-27 Vaillant Gmbh DEVICE FOR COOLING A LONG-TERM BURNER
EP0450072B1 (en) * 1988-12-22 1995-04-26 Miura Co., Ltd. Square multi-pipe once-through boiler
US5215457A (en) * 1990-01-24 1993-06-01 Worgas Bruciatori S.R.L. Combustion process and gas burner with low nox, co emissions
US5490778A (en) * 1990-04-12 1996-02-13 Dru B.V. Burner
US5052921A (en) * 1990-09-21 1991-10-01 Southern California Gas Company Method and apparatus for reducing NOx emissions in industrial thermal processes
EP0744010B1 (en) * 1994-12-20 1999-09-29 Robert Bosch Gmbh Heater
US5839891A (en) * 1997-01-13 1998-11-24 Beckett Gas, Inc. Power gas burner

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1315993A (en) * 1919-09-16 Charles c
US1003180A (en) * 1910-12-15 1911-09-12 William F Hall Oil-burner.
US1532612A (en) * 1924-06-14 1925-04-07 Israel B Taylor Gas burner
US2612890A (en) * 1948-11-23 1952-10-07 Harsh Joseph Delbert Hot-air heating furnace
US2807257A (en) * 1954-07-15 1957-09-24 Froy L Collins Portable heater
US4050877A (en) * 1974-07-12 1977-09-27 Aqua-Chem, Inc. Reduction of gaseous pollutants in combustion flue gas
US4323343A (en) * 1980-02-04 1982-04-06 John Zink Company Burner assembly for smokeless combustion of low calorific value gases
FR2506910B1 (en) * 1980-03-27 1988-05-13 Paquet Thermique GAS BOILER THAT CAN OPERATE IN A SEALED COMBUSTION CIRCUIT
US4525141A (en) * 1983-07-11 1985-06-25 Gas Research Institute Regulation of blue flame combustion emissions
US4616994A (en) * 1984-10-05 1986-10-14 Heil-Quaker Corporation Gas burner with means for reducing NOx emissions
DE8507804U1 (en) * 1985-03-16 1985-05-15 Viessmann Werke Kg, 3559 Allendorf Atmospheric gas burner
DE3509521A1 (en) * 1985-03-16 1986-09-25 Hans Dr.h.c. 3559 Battenberg Vießmann ATMOSPHERIC GAS BURNER
DE8605274U1 (en) * 1986-02-27 1986-05-28 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Gas burner

Also Published As

Publication number Publication date
DE3678570D1 (en) 1991-05-08
EP0245391A1 (en) 1987-11-19
US4915621A (en) 1990-04-10
WO1987003068A1 (en) 1987-05-21

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