US20030096205A1 - Burner with an extension of the venturi tube - Google Patents

Burner with an extension of the venturi tube Download PDF

Info

Publication number
US20030096205A1
US20030096205A1 US10/182,811 US18281102A US2003096205A1 US 20030096205 A1 US20030096205 A1 US 20030096205A1 US 18281102 A US18281102 A US 18281102A US 2003096205 A1 US2003096205 A1 US 2003096205A1
Authority
US
United States
Prior art keywords
venturi tube
burner
extension means
extension
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.)
Abandoned
Application number
US10/182,811
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
Individual
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 Individual filed Critical Individual
Assigned to WORGAS BRUCIATORI S.R.L. reassignment WORGAS BRUCIATORI S.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LASAGNI, FELICIANO, VECCHI, RENZO
Publication of US20030096205A1 publication Critical patent/US20030096205A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • 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, e.g. noise reduction means

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, in particular the burners for gaseous fuels, 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.
  • 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.
  • FIG. 1 is an elevation view of a tubular burner according to the invention, provided with an extension element of the Venturi tube;
  • FIG. 2 is a top view of FIG. 1;
  • FIG. 3 is a partial axial section of the extension element of the Venturi tube
  • FIG. 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.
  • the connection of the extension element 6 to the 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 .
  • extension element 6 can be connected to the Venturi tube 3 through removable fastening means.
  • FIGS. 3 and 4 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 .

Abstract

A burner (1), with natural or forced suction, comprising a burner body (2), into which a mixture of fuel and air is introduced, said body (2) being provided with openings (4) for the flow and subsequent combustion of said mixture and comprising a Venturi tube (3) into which a jet of said fuel is introduced under pressure and extension means (6) for said Venturi tube (3); said extension means (6) is removably coupled with said Venturi tube (3).

Description

  • The invention relates to a burner with natural or forced suction, equipped with a Venturi tube provided with extension. [0001]
  • The burners with natural or forced suction known from the prior art, in particular the burners for gaseous fuels, are fed with a mixture of fuel and air that is introduced into the burner through a Venturi tube, mounted inside the burner body. In 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. In 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. [0002]
  • In burners that require a high amount of primary air, higher than the geometry of 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. [0003]
  • 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. [0004]
  • That limits the flexibility of use of the burner that substantially can be used only at working conditions that require a high amount of primary air. [0005]
  • It is An object of the present invention to provide a burner with high working flexibility, which can be used in conditions requiring very different primary aeration rates. [0006]
  • According to the present invention, 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. [0007]
  • 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.[0008]
  • The invention will be now described here below, with reference to the enclosed drawings, in which: [0009]
  • FIG. 1 is an elevation view of a tubular burner according to the invention, provided with an extension element of the Venturi tube; [0010]
  • FIG. 2 is a top view of FIG. 1; [0011]
  • FIG. 3 is a partial axial section of the extension element of the Venturi tube; [0012]
  • FIG. 4 is a side, enlarged view of the extension element of the Venturi tube.[0013]
  • With reference to the FIG. 1, there are indicated: [0014] 1 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. In the inlet 5 of the Venturi tube 3 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.
  • The function of this [0015] 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 [0016] 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. The connection of the extension element 6 to the 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.
  • Alternatively, the [0017] 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 FIGS. 3 and 4, which show the Venturi tube [0018] 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. In order to fix the extension element 6 in the Venturi tube 3, it is sufficient to introduce the end 12 into the Venturi tube 3, until said protrusion 8 enters the first portion 10 of the slot 9, and then rotate the extension element 6 so that said protrusion 8 enters the second section 11 of the slot 9, locking in position the extension element 6 in the Venturi tube 3. In order to separate the extension element 6 from the Venturi tube 3 it is sufficient to execute the above-described operations in a reversed order.

Claims (7)

1. Burner (1), with natural or forced suction, comprising a burner body (2), into which a mixture of fuel and air is introduced, said body (2) being provided with openings (4) for the flow and subsequent combustion of said mixture and comprising a Venturi tube (3) into which a jet of said fuel is introduced under pressure and extension means (6) for said Venturi tube (3), characterized in that said extension means (6) is removably coupled with said Venturi tube (3).
2. Burner (1) according to claim 1, wherein said extension means (6) is coupled to said Venturi tube (3) by means of interference coupling, the measure of said interference being chosen so as to assure stability of the coupling and allow a removal even manual of said extension means (6).
3. Burner (1) according to claim 1, wherein said extension means (6) is coupled to said Venturi tube (3) through fastening means (8, 9).
4. Burner (1) according to claim 3, wherein said fastening means (8, 9) includes a protrusion (8) provided on the internal surface of said Venturi tube (3) and an open slot (9) provided at an end of said extension means (6).
5. Burner (1) according to claim 4, wherein said open slot (9) includes a first portion (10) substantially rectilinear and substantially parallel to a longitudinal axis of said extension means (6).
6. Burner (1) according to claim 5, wherein said open slot (9) includes a second portion (11) consecutive to said first portion (10) and forming an angle with it.
7. Burner (1) according to claim 6, wherein said angle has an amplitude of about 90°.
US10/182,811 2000-02-04 2001-02-05 Burner with an extension of the venturi tube Abandoned US20030096205A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMO2000A000014 2000-02-04
IT2000MO000014A IT1315590B1 (en) 2000-02-04 2000-02-04 BURNER WITH VENTURI TUBE EXTENSION.

Publications (1)

Publication Number Publication Date
US20030096205A1 true US20030096205A1 (en) 2003-05-22

Family

ID=11450339

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/182,811 Abandoned US20030096205A1 (en) 2000-02-04 2001-02-05 Burner with an extension of the venturi tube

Country Status (9)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103477151A (en) * 2010-12-01 2013-12-25 A.O.史密斯公司 Low NOx burner for a water heater
CN109595557A (en) * 2018-09-26 2019-04-09 中山市恒乐电器有限公司 A kind of low-NOx combustor for water heater

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700079548A1 (en) * 2017-07-14 2019-01-14 Ariston Thermo Spa ADAPTER COLLAR FOR A TUBULAR BURNER OF A GAS WATER HEATER

Citations (7)

* 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
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
US4773384A (en) * 1983-11-04 1988-09-27 Modern Home Products Corp. Adjustable gas intake assembly
US5529284A (en) * 1986-01-15 1996-06-25 Berger; Martin H. Reusable pipe union assembly with automatic fluid flow checking
US5743727A (en) * 1997-01-21 1998-04-28 Burner Systems International, Inc. Premixed gas burner

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
TW257830B (en) * 1994-03-30 1995-09-21 Port O Kiln Aust Pty Ltd A burner

Patent Citations (7)

* 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
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
US4773384A (en) * 1983-11-04 1988-09-27 Modern Home Products Corp. Adjustable gas intake assembly
US5529284A (en) * 1986-01-15 1996-06-25 Berger; Martin H. Reusable pipe union assembly with automatic fluid flow checking
US5743727A (en) * 1997-01-21 1998-04-28 Burner Systems International, Inc. Premixed gas burner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103477151A (en) * 2010-12-01 2013-12-25 A.O.史密斯公司 Low NOx burner for a water heater
US9212817B2 (en) 2010-12-01 2015-12-15 A. O. Smith Corporation Low NOx burner for a water heater
US9587854B2 (en) 2010-12-01 2017-03-07 A. O. Smith Corporation Low NOx burner for a water heater
CN109595557A (en) * 2018-09-26 2019-04-09 中山市恒乐电器有限公司 A kind of low-NOx combustor for water heater

Also Published As

Publication number Publication date
EP1252466B1 (en) 2005-10-19
HUP0300116A2 (en) 2003-06-28
DE60114148D1 (en) 2006-03-02
WO2001057437A1 (en) 2001-08-09
EP1252466A1 (en) 2002-10-30
DE60114148T2 (en) 2006-07-06
ITMO20000014A1 (en) 2001-08-04
PL356580A1 (en) 2004-06-28
ATE307320T1 (en) 2005-11-15
AU2001228743A1 (en) 2001-08-14
IT1315590B1 (en) 2003-03-14

Similar Documents

Publication Publication Date Title
EP1193447A3 (en) Multiple injector combustor
US8938968B2 (en) Burner of a gas turbine
MY141577A (en) Premixing burner arrangement for operating a burner chamber and method for operating a burner chamber
EP0769657A3 (en) Low emissions combustor premixer
EP2065645A3 (en) Burner and gas turbine combustor
CA2391757A1 (en) Burner fuel mixer head for concurrently burning two gaseous fuels
JP2008534903A (en) Premix burner used in gas turbine combustor
EP1321715A3 (en) Improved combination of a premixing chamber and a combustion chamber, with low emission of pollutants, for gas turbines running on liquid and/or gas fuel
US20030096205A1 (en) Burner with an extension of the venturi tube
EP0829679A3 (en) Fuel/air supply assembly for gas burners
US11867401B2 (en) Pre-vaporizing pipe, combustion assembly provided therewith and turbomachine provided therewith
HK1056599A1 (en) Low noise modular blade burner
JPH0330050B2 (en)
SU643719A1 (en) Burner
US20100287940A1 (en) Burner of a gas turbine
CN211372399U (en) Premixing low-nitrogen combustor
JP2759402B2 (en) Premix burner device
KR100261497B1 (en) Burner for gas turbine
RU2001124100A (en) FUEL AIR BURNER OF THE COMBUSTION CHAMBER OF A GAS TURBINE ENGINE
KR200155551Y1 (en) Nozzle for lpg and lng in gas equipment
KR200159200Y1 (en) Air inhalation manifold structure for a car
JPH1163431A (en) Burner
KR940000133B1 (en) Pilot burner for gas boiler
JPH029225Y2 (en)
KR950010233Y1 (en) Combustion apparatus

Legal Events

Date Code Title Description
AS Assignment

Owner name: WORGAS BRUCIATORI S.R.L., ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:VECCHI, RENZO;LASAGNI, FELICIANO;REEL/FRAME:013529/0872;SIGNING DATES FROM 20020919 TO 20020926

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION