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EP1252466A1 - Bruleur avec prolongement du tube de venturi - Google Patents

Bruleur avec prolongement du tube de venturi

Info

Publication number
EP1252466A1
EP1252466A1 EP01949031A EP01949031A EP1252466A1 EP 1252466 A1 EP1252466 A1 EP 1252466A1 EP 01949031 A EP01949031 A EP 01949031A EP 01949031 A EP01949031 A EP 01949031A EP 1252466 A1 EP1252466 A1 EP 1252466A1
Authority
EP
European Patent Office
Prior art keywords
venturi tube
burner
extension
extension means
fuel
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.)
Granted
Application number
EP01949031A
Other languages
German (de)
English (en)
Other versions
EP1252466B1 (fr
Inventor
Renzo Vecchi
Feliciano Lasagni
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.)
Beckett Thermal Solutions SRL
Original Assignee
Worgas Bruciatori SRL
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 Worgas Bruciatori SRL filed Critical Worgas Bruciatori SRL
Publication of EP1252466A1 publication Critical patent/EP1252466A1/fr
Application granted granted Critical
Publication of EP1252466B1 publication Critical patent/EP1252466B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F23D14/62—Mixing devices; Mixing tubes
    • 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
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/10—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head
    • F23D14/105—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head with injector axis parallel to the burner head axis
    • 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

Definitions

  • the invention relates to a burner with natural or forced suction, equipped with a
  • Venturi tube provided with extension.
  • the burners with natural or forced suction known from the prior art are fed with a mixture of fuel and air that is introduced into the burner through a Venturi tube, mounted inside the burner body.
  • natural suction burners the primary air required for the combustion of the fuel is sucked inside the burner through a Venturi tube, due to a dragging effect caused by a jet of fuel under pressure injected into the Venturi tube.
  • burners with forced suction obtained through a suction or blowing fan, the primary air required for the combustion is introduced into the burner by the combined effect of the action of the fan and dragging of air produced by the fuel jet injected under pressure into the
  • Venturi tube can assures, the above-mentioned dragging effect can be increased by extending the Venturi tube through an extension element having substantially the form of a trumpet, said extension element being mounted at the inlet of the Venturi tube.
  • the above-mentioned extension of the Venturi tube is generally mounted in the burner when the burner is manufactured and can not be removed, without damaging the burner itself.
  • a burner is provided, with natural or forced suction, comprising a burner body, into which a mixture of fuel and air is introduced, said burner body being provided with openings for the flow and subsequent combustion of said mixture, said body comprising a Venturi tube into which a jet of said fuel is introduced under pressure and extension means for said Venturi tube, characterized in that, said extension means is removably coupled with said Venturi tube. That allows said extension means to be mounted only when it is necessary for the working conditions required to the burner and to be dismounted when the working conditions do not require any more the use of said extension means. In such way, a burner is obtained with large flexibility of use, suitable to satisfy a wide range of working requirements.
  • Figure 1 is an elevation view of a tubular burner according to the invention, provided with an extension element of the Venturi tube;
  • Figure 2 is a top view of Figure 1 ;
  • Figure 3 is a partial axial section of the extension element of the Venturi tube
  • Figure 4 is a side, enlarged view of the extension element of the Venturi tube.
  • a burner according to the invention including a body 2 inside which a Venturi tube 3 is arranged, through the inlet 5 of which a mixture of fuel and air is introduced into the burner 1.
  • the body 2 of the burner 1 is provided, at its upper portion, with openings 3, for example in the form of slots, through which said mixture flows for the subsequent combustion.
  • an extension element 6 is inserted through which a jet of fuel under pressure is introduced into the Venturi tube 3.
  • An end 7 of the extension element 6, at a distance from the Venturi tube 3, has a flared shape.
  • this extension element 6 is to increase the air dragging effect produced by said jet of fuel under pressure, in order to increase the amount of primary air introduced into the body 2 of the burner 1.
  • the extension element 6 is removably connected to the Venturi tube 3, so that it can be separated from the Venturi tube 3, when the working conditions of the burner do not require an increase of the amount of the primary air that can be sucked through the Venturi tube 3 alone, and can be reinserted into the Venturi tube 3 when said increase of primary air is required.
  • Venturi tube 3 can be obtained by means of coupling with slight interference, that assures a stable connection, but easy removable even by hand, between the Venturi tube 3 and the extension element 6.
  • the extension element 6 can be connected to the Venturi tube 3 through removable fastening means.
  • An example of such a connection type is illustrated in the Figures 3 and 4, which show the Venturi tube 3 provided with an internal protrusion 8 insertable into an open slot 9, provided at the end 12 of the extension element 6, that is inserted into the Venturi tube 3.
  • the slot 9 includes a first portion 10, substantially rectilinear and oriented in a direction substantially parallel to the longitudinal axis of the extension element 6, and a second portion 11 preferably arranged at a right angle with respect to said first portion 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Treating Waste Gases (AREA)
  • Nozzles (AREA)

Abstract

L'invention concerne un brûleur (1), à aspiration naturelle ou forcée, qui comprend un corps de brûleur (2), dans lequel un mélange de combustible et d'air est introduit, ce corps (2) étant doté d'ouvertures (4) destinées à l'écoulement et à la combustion subséquente du mélange, et qui comporte un tube de Venturi (3) dans lequel un jet de combustible est introduit sous pression ainsi que des moyens d'extension (6) destinés au tube de Venturi (3), ces moyens d'extension (6) étant couplés amovibles au tube de Venturi (3).
EP01949031A 2000-02-04 2001-02-05 Bruleur avec prolongement du tube de venturi Expired - Lifetime EP1252466B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT2000MO000014A IT1315590B1 (it) 2000-02-04 2000-02-04 Bruciatore con prolungamento del tubo di venturi.
ITMO000014 2000-02-04
PCT/IB2001/000141 WO2001057437A1 (fr) 2000-02-04 2001-02-05 Bruleur avec prolongement du tube de venturi

Publications (2)

Publication Number Publication Date
EP1252466A1 true EP1252466A1 (fr) 2002-10-30
EP1252466B1 EP1252466B1 (fr) 2005-10-19

Family

ID=11450339

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01949031A Expired - Lifetime EP1252466B1 (fr) 2000-02-04 2001-02-05 Bruleur avec prolongement du tube de venturi

Country Status (9)

Country Link
US (1) US20030096205A1 (fr)
EP (1) EP1252466B1 (fr)
AT (1) ATE307320T1 (fr)
AU (1) AU2001228743A1 (fr)
DE (1) DE60114148T2 (fr)
HU (1) HUP0300116A2 (fr)
IT (1) IT1315590B1 (fr)
PL (1) PL356580A1 (fr)
WO (1) WO2001057437A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012071713A1 (fr) * 2010-12-01 2012-06-07 A. O. Smith Corporation Brûleur à faibles émissions de nox pour un chauffe-eau
IT201700079548A1 (it) * 2017-07-14 2019-01-14 Ariston Thermo Spa Collare adattatore per un bruciatore tubolare di uno scaldacqua a gas
CN109595557A (zh) * 2018-09-26 2019-04-09 中山市恒乐电器有限公司 一种用于热水器的低NOx燃烧器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1279935A (en) * 1918-05-24 1918-09-24 W T Sweat Safety pipe-joint.
US3567137A (en) * 1969-08-29 1971-03-02 Carrier Corp Gas burner
GB1337121A (en) * 1970-11-30 1973-11-14 Airoil Burner Fuel burner assemblies
GB1502104A (en) * 1975-08-12 1978-02-22 Trapp C Gas burners
US4773384A (en) * 1983-11-04 1988-09-27 Modern Home Products Corp. Adjustable gas intake assembly
US4478205A (en) * 1983-11-04 1984-10-23 Modern Home Products Corp. Dual adjustable gas intake assembly
US4679544A (en) * 1983-11-04 1987-07-14 Modern Home Products Corp. Threaded adjustable gas intake assembly
US4586483A (en) * 1984-06-29 1986-05-06 Manuel Perez Adjustable dual venturi assembly
US4686957A (en) * 1984-10-30 1987-08-18 Modern Home Products Corp. Gas nozzle attachment
US4597733A (en) * 1985-02-14 1986-07-01 Alvin Dean Gas heating system for dehydrators and the like
US5355908A (en) * 1986-01-15 1994-10-18 Hiltap Fittings, Ltd. Reusable pipe union assembly with automatic fluid flow checking
TW257830B (en) * 1994-03-30 1995-09-21 Port O Kiln Aust Pty Ltd A burner
US5743727A (en) * 1997-01-21 1998-04-28 Burner Systems International, Inc. Premixed gas burner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0157437A1 *

Also Published As

Publication number Publication date
ATE307320T1 (de) 2005-11-15
AU2001228743A1 (en) 2001-08-14
ITMO20000014A1 (it) 2001-08-04
EP1252466B1 (fr) 2005-10-19
HUP0300116A2 (en) 2003-06-28
DE60114148T2 (de) 2006-07-06
US20030096205A1 (en) 2003-05-22
PL356580A1 (en) 2004-06-28
WO2001057437A1 (fr) 2001-08-09
DE60114148D1 (de) 2006-03-02
IT1315590B1 (it) 2003-03-14

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