EP0092768A1 - Brûleur produisant du gaz chaud - Google Patents

Brûleur produisant du gaz chaud Download PDF

Info

Publication number
EP0092768A1
EP0092768A1 EP83103764A EP83103764A EP0092768A1 EP 0092768 A1 EP0092768 A1 EP 0092768A1 EP 83103764 A EP83103764 A EP 83103764A EP 83103764 A EP83103764 A EP 83103764A EP 0092768 A1 EP0092768 A1 EP 0092768A1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
burner according
pressure distribution
burner
chamber
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
EP83103764A
Other languages
German (de)
English (en)
Other versions
EP0092768B1 (fr
Inventor
Reiner W. Hannen
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.)
MSK Verpackungs Systeme GmbH
Original Assignee
MSK Verpackungs Systeme GmbH
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 DE19823215613 external-priority patent/DE3215613A1/de
Priority claimed from DE19823226615 external-priority patent/DE3226615A1/de
Application filed by MSK Verpackungs Systeme GmbH filed Critical MSK Verpackungs Systeme GmbH
Priority to AT83103764T priority Critical patent/ATE20139T1/de
Publication of EP0092768A1 publication Critical patent/EP0092768A1/fr
Application granted granted Critical
Publication of EP0092768B1 publication Critical patent/EP0092768B1/fr
Expired 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
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/74—Preventing flame lift-off
    • 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
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • F23D14/583—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D99/00—Subject matter not provided for in other groups of this subclass
    • F23D99/002—Burners specially adapted for specific applications
    • F23D99/004—Burners specially adapted for specific applications for use in particular heating operations

Definitions

  • the invention relates to a burner for generating a hot gas stream, in particular for shrinking plastic film, with a combustion chamber and a flame holder upstream of the combustion chamber for the passage of the combustion gases which are fed to the flame holder from a pressure distribution chamber, and an outlet connected downstream of the burner.
  • Such burners are required for shrinking plastic films, for example in the form of hoods, which are drawn onto a stack of goods located on a pallet.
  • the shrinking can be done with handheld devices, but also with stationary installed, automatically working systems. It is important when shrinking plastic film that a uniform flame-free hot gas flow is generated.
  • a burner of the type described above is known (DE-GM 80 30 181). With this burner form rods, which are arranged at a distance from one another on the flame holder, in the combustion chamber partial streams of the combustion gases which are mixed with one another in a slot nozzle arranged downstream of the combustion chamber. This creates turbulence, which leads to an intensive swirling of the combustion gases and thus to combustion in a short way. At the same time, the burned gases in the slot die are also accelerated, so that the hot gas stream emerges from the outlet of the slot die at a considerable speed. This is particularly undesirable if the outlet of the burner is relatively close to the plastic film to be shrunk when shrinking. Then the film may burn.
  • the object of the invention is to reduce the exit velocity of the hot gas flow in a burner of the type described in the introduction.
  • combustion chamber and the outlet form a flow channel with the same cross sections which are constant in the flow direction.
  • the combustion chamber or the flame holder should have an elongated rectangular base. This is aerodynamically favorable and enables a burner with a large range of effectiveness to be produced using simple means. This is particularly true when the flame holder is formed by a grid of parallel rods.
  • the length of the combustion chamber with the outlet in the flow direction is 1.2 to 1.5 times the width of the combustion chamber in order to prevent flames from escaping from the outlet.
  • the end sections of the walls defining the outlet can be widened to form a diffuser.
  • a flame holder Since a flame holder forms a considerable flow resistance as described above, it also causes a distribution of the gases flowing from the pressure distribution into the combustion chamber. However, this presupposes that the individual rods of the flame holder are positioned at a relatively precise distance from one another. Such a precise arrangement, however, is difficult to achieve in terms of manufacturing technology. Even with small deviations, there is a change in the pressure distribution in the combustion chamber and thus irregularities in the outflowing hot gas flow.
  • a burner that is reliable with a simple structure and has constant properties is characterized in that the flame holder is a profile rod which extends over the entire width of the pressure distribution chamber or combustion chamber and forms passage gaps for the fuel gases with the adjacent walls.
  • the flame holder is only a single component, which can also be positioned very precisely using simple means. Reliable and consistent properties of the burner can also be achieved when producing larger quantities.
  • the rod-like flame holder divides, as it were, the gas stream entering the combustion chamber. The partial streams entering the combustion chamber through the passage gaps are drawn into the center of the combustion chamber under the effect of the dead water formed behind the profile rod and therefore cause less strain on the walls of the combustion chamber during their combustion.
  • a preferred embodiment of the invention is characterized in that the substantially Connect the flat walls of the pressure distribution chamber and the combustion chamber in the transition area to each other with a bend and that the pipe is arranged symmetrically to the bend. Then there are passage gaps with a venturi-like cross-section between the outer sides of the tube and the adjacent walls.
  • the length of the combustion chamber in order to enable complete combustion of the combustion gases before they leave the combustion chamber, should be at least three times the (over the length) constant height of the combustion chamber.
  • the pressure distribution chamber can additionally have internals for directing and distributing the fuel gases. These internals should in particular be designed and arranged such that the pressure conditions are the same across the width of the combustion chamber and the same amounts of fuel gas enter the combustion chamber.
  • the internals can in particular be formed from a sheet metal which extends essentially across the pressure distribution chamber and forms passage gaps with the walls of the pressure distribution chamber.
  • the sheet can also be perforated.
  • the burner 1 shown in the drawing is used to generate a hot gas stream from combustion gases. It is used for shrinking plastic film, e.g. of shrink hoods that are pulled onto a pallet stack.
  • the basic structure of the burner has an outlet 2 and a combustion chamber 3 connected upstream of this outlet 2.
  • Outlet 2 and combustion chamber 3 form a flow channel with a constant cross section. They are delimited by mutually parallel walls 4, 5 which are connected to a flame holder 6 connected upstream of the combustion chamber 3 and arranged at the end of a pressure distribution chamber 7.
  • the pressure distribution chamber 7 has a fan-shaped plan in the projection shown in FIG. 1. It is: connected to a mixture feed pipe 8 on the side opposite the flame holder 6.
  • the flame holder 6 extends over the entire length of the combustion chamber 3, like the combustion chamber 3 it has an elongated, rectangular plan.
  • the flame holder 6 is formed from a multiplicity of lattice bars 9 which are arranged parallel to one another and at a distance and are oriented transversely to the longitudinal direction of the combustion chamber 3.
  • the bars 9 can be made of spring steel with a diameter of about 3mm and the mutual spacing of the bars 9 can be about 0.5mm.
  • the height of the combustion chamber 3 and outlet 2 in the flow direction is 1.2 to 1.5 times the width of the combustion chamber 3.
  • the free edges of the walls 4.5, which define the outlet 2, are at 10 and to form a diffuser 11 angled.
  • the basic structure of the burner 1 shown in FIGS. 4 to 6 consists of a mixture feed pipe 32, to which a pressure distribution chamber 33 with a fan-shaped plan (FIG. 4) is connected.
  • the pressure distribution chamber 33 merges into a combustion chamber 34 with an outlet 35.
  • the pressure distribution chamber 33 and also the combustion chamber 34 have an elongated rectangular cross section, onto which the side walls 36, 37 of the pressure distribution chamber 33 converge.
  • These side walls 36, 37 of the pressure distribution chamber 33 merge into subsequent side walls 39, 40 of the combustion chamber 34 with a kink 38.
  • the Combustion chamber 34 has a length that is at least three times its height. For example, the length of the combustion chamber is at least 45 mm and its height is 15 mm.
  • the width of the combustion chamber and thus also the width of the pressure distribution chamber in the transition region (kink 38) is 180 mm in the exemplary embodiment.
  • a flame 41 is arranged as a flame holder, which, as shown, is attached symmetrically to the bend 38 and which with the adjacent side walls 36, 37 and 39, 40 passage gaps 12, 13 constant width for the fuel gases.
  • the pressure distribution chamber 33 has built-in components which, in the embodiment shown, are formed from a sheet 14 which extends essentially transversely through the pressure distribution chamber 33 and with the side walls 36, 37 of the pressure distribution chamber 33 Passage gaps 15 and 16 forms.
  • the sheet 15 is folded in the middle, so that two legs are formed at an angle from each other in the exemplary embodiment 117 0 , which are fastened in the region of their common folded edge 17 to the side walls 36, 37 of the pressure distribution chamber 33.
  • the legs extend towards the combustion chamber and ensure that the fuel gases flowing out of the mixture supply pipe are distributed in this way be that they enter the combustion chamber 34 at the same pressure and the same amount. It is not shown that the sheet 14 can also be perforated.
  • the long side walls 39, 40 of the combustion chamber 34 have expansion folds 20 which extend in the direction of the outflowing gases.
  • These expansion folds 20 can also be formed by angled and welded ends of adjacent wall sections. As a result, the burner geometry remains unchanged even under high thermal loads.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP83103764A 1982-04-27 1983-04-19 Brûleur produisant du gaz chaud Expired EP0092768B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83103764T ATE20139T1 (de) 1982-04-27 1983-04-19 Brenner zur erzeugung eines heissgasstromes.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19823215613 DE3215613A1 (de) 1982-04-27 1982-04-27 Brenner zur erzeugung eines heissgasstromes
DE3215613 1982-04-27
DE3226615 1982-07-16
DE19823226615 DE3226615A1 (de) 1982-07-16 1982-07-16 Brenner zur erzeugung eines heissgasstromes, insbesondere zum schrumpfen von kunststoffolie

Publications (2)

Publication Number Publication Date
EP0092768A1 true EP0092768A1 (fr) 1983-11-02
EP0092768B1 EP0092768B1 (fr) 1986-05-28

Family

ID=25801379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83103764A Expired EP0092768B1 (fr) 1982-04-27 1983-04-19 Brûleur produisant du gaz chaud

Country Status (2)

Country Link
EP (1) EP0092768B1 (fr)
DE (1) DE3363723D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606491A1 (fr) * 1986-11-12 1988-05-13 Stepack Dispositif d'allumage pour bruleur a haute vitesse de type a buse froide et bruleur utilisant ledit dispositif
CN103994438A (zh) * 2014-05-30 2014-08-20 长沙有色冶金设计研究院有限公司 一种反射炉烧嘴

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2822192A1 (de) * 1978-05-20 1979-11-22 Msk Verpackung Syst Gmbh Handschrumpfgeraet fuer die erzeugung eines heissluftstrahls zum schrumpfen von kunststoffolien o.dgl.
GB2064752A (en) * 1979-12-06 1981-06-17 Assi Can Ab Hot gas generator
DE8030181U1 (de) * 1980-11-12 1981-09-10 Msk - Verpackungs-Systeme Gmbh, 4192 Kalkar Brenner für Breitschlitzdüse zur Erzeugung eines Heißgasstromes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2645263C2 (de) * 1976-10-07 1984-04-05 Heinz Leo 4180 Goch Gantevoort Heizgaserzeuger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2822192A1 (de) * 1978-05-20 1979-11-22 Msk Verpackung Syst Gmbh Handschrumpfgeraet fuer die erzeugung eines heissluftstrahls zum schrumpfen von kunststoffolien o.dgl.
GB2064752A (en) * 1979-12-06 1981-06-17 Assi Can Ab Hot gas generator
DE8030181U1 (de) * 1980-11-12 1981-09-10 Msk - Verpackungs-Systeme Gmbh, 4192 Kalkar Brenner für Breitschlitzdüse zur Erzeugung eines Heißgasstromes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606491A1 (fr) * 1986-11-12 1988-05-13 Stepack Dispositif d'allumage pour bruleur a haute vitesse de type a buse froide et bruleur utilisant ledit dispositif
EP0270424A1 (fr) * 1986-11-12 1988-06-08 Stepack Dispositif d'allumage pour brûleur à haute vitesse de type à buse froide et brûleur utilisant ledit dispositif
CN103994438A (zh) * 2014-05-30 2014-08-20 长沙有色冶金设计研究院有限公司 一种反射炉烧嘴

Also Published As

Publication number Publication date
EP0092768B1 (fr) 1986-05-28
DE3363723D1 (en) 1986-07-03

Similar Documents

Publication Publication Date Title
EP0620403B1 (fr) Dispositif de mélange et de stabilisation de la flamme dans une chambre de combustion avec mélange préalable du combustible.
CH687831A5 (de) Vormischbrenner.
EP0619133A1 (fr) Chambre de mélanges
EP0210462A1 (fr) Chambre de combustion double
DE2307102C2 (de) Gasbrenner mit einer langgestreckten Brennerleitung
DE3885150T2 (de) Gasbrenner mit kalter Düse.
DE3007209C2 (fr)
DE1897407U (de) Gasbrenner.
DE10010762C2 (de) Atmosphärischer Gasbrenner
DE69406837T2 (de) Gaslanze und Verwendungsverfahren
EP0052191A2 (fr) Brûleur atmosphérique à gaz, en particulier pour appareils domestiques chauffés au gaz
EP0777082A2 (fr) Brûleur à prémélange
EP0092768B1 (fr) Brûleur produisant du gaz chaud
EP0829678B1 (fr) Brûleur et procédé pour réchauffer un flux gazeux
EP0519029B1 (fr) Bruleur a gaz et procede pour son utilisation
DE4435749C2 (de) Heizvorrichtung für feste Brennstoffe
EP0064636B1 (fr) Générateur de gaz chauds utilisé pour le rétrécissement de feuilles en matières plastique
EP0122320B1 (fr) Brûleur produisant un courant de gaz chaud, particulièrement pour contraction de feuilles en matière plastique
DE3721686C2 (de) Vorrichtung zum mischen zweier gase
DE612203C (de) Kohlenstaubbrenner
DE3318860C2 (de) Brenner zum Erwärmen von Luft
DE3226615A1 (de) Brenner zur erzeugung eines heissgasstromes, insbesondere zum schrumpfen von kunststoffolie
DE2312416C2 (de) Vorrichtung zum Verbrennen gasförmiger Brennstoffe
DE3215613A1 (de) Brenner zur erzeugung eines heissgasstromes
DE1905528A1 (de) Gasbrenner,insbesondere fuer Durchlaufwassererhitzer sowie Verfahren zum Herstellen eines Gasbrenners

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19840316

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 20139

Country of ref document: AT

Date of ref document: 19860615

Kind code of ref document: T

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19860531

REF Corresponds to:

Ref document number: 3363723

Country of ref document: DE

Date of ref document: 19860703

ET Fr: translation filed
ITF It: translation for a ep patent filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19870430

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19890413

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19890421

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19890424

Year of fee payment: 7

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19890430

Year of fee payment: 7

Ref country code: GB

Payment date: 19890430

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19890523

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19890717

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19900419

Ref country code: AT

Effective date: 19900419

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19900430

Ref country code: CH

Effective date: 19900430

Ref country code: BE

Effective date: 19900430

BERE Be: lapsed

Owner name: MSK-VERPACKUNGS-SYSTEME G.M.B.H.

Effective date: 19900430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19901101

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19901228

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010423

Year of fee payment: 19

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021101