EP2901079A2 - Buse de coupe et chalumeau d'oxycoupage muni de ladite buse - Google Patents

Buse de coupe et chalumeau d'oxycoupage muni de ladite buse

Info

Publication number
EP2901079A2
EP2901079A2 EP13780051.2A EP13780051A EP2901079A2 EP 2901079 A2 EP2901079 A2 EP 2901079A2 EP 13780051 A EP13780051 A EP 13780051A EP 2901079 A2 EP2901079 A2 EP 2901079A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
cutting
laval
oxygen
head
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
EP13780051.2A
Other languages
German (de)
English (en)
Other versions
EP2901079B1 (fr
Inventor
Gerald ZOISTER
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.)
Framag Industrieanlagenbau GmbH
Original Assignee
Framag Industrieanlagenbau 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
Application filed by Framag Industrieanlagenbau GmbH filed Critical Framag Industrieanlagenbau GmbH
Publication of EP2901079A2 publication Critical patent/EP2901079A2/fr
Application granted granted Critical
Publication of EP2901079B1 publication Critical patent/EP2901079B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F23D14/48—Nozzles
    • F23D14/52—Nozzles for torches; for blow-pipes
    • F23D14/54—Nozzles for torches; for blow-pipes for cutting or welding metal
    • 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
    • F23D14/38—Torches, e.g. for brazing or heating
    • F23D14/42—Torches, e.g. for brazing or heating for cutting
    • 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

Definitions

  • the invention relates to a cutting torch and a cutting nozzle with at least one Edelsauerstoffkanal, with at least one Schugaskanal, with a Schneidsauerstoffkanal having a Laval nozzle with a convergent and a divergent section, and with a nozzle head, which has an exemption, in the Schusauerstoffkanal, Schugaskanal and Open the Laval nozzle of the cutting oxygen channel.
  • the cutting quality as well as the cutting speed of the cutting nozzle can be improved
  • Such an exemption at the nozzle head, into which the cutting oxygen channel also flows via a Laval nozzle, can lead to an impairment of the cutting oxygen jet or of the mixture of heating gas and heating oxygen, which can reduce the cutting speeds.
  • the invention achieves the stated object in that the opening into the exemption of the nozzle head Laval nozzle is designed as a parallel jet.
  • the Laval nozzle opening out into the free position of the nozzle head is designed as a parallel jet nozzle, a considerable increase in the cutting quality and the cutting speed of the cutting nozzle can be achieved without having to expect overheating of the cutting nozzle, as is known, for example, in gas-mixing cutting nozzles (DE680158A).
  • the cutting oxygen jet which enters the nozzle head in parallel, can contribute to the improved nozzle-head-side mixing of heating gas and heating oxygen, because this can reduce the risk of a compression shock in the region of the release.
  • the known advantages of the end-side exemption on the nozzle head for the concentration of heating gas and heating oxygen can be used and still their mixing can be improved, which can have a positive effect on cutting quality and cutting speed.
  • the mixing of the cutting oxygen jet with heating gas, heating oxygen or with their reaction gases can be further reduced if the release is cylindrical.
  • such an exemption with relatively little design effort in a nozzle head, for example by turning, can be provided, whereby the cutting nozzle can also be produced comparatively cheap.
  • the cutting nozzle has a nozzle body in which the heating oxygen channel, the heating gas channel and the cutting oxygen channel are provided, wherein the nozzle head is adjoined by the nozzle head.
  • the nozzle body is in one piece, which can significantly increase the stability in the leadership of the channels.
  • the manufacture of a cutting torch can be facilitated by the nozzle head plugged on the nozzle head has an external thread, with which the cutting nozzle can be connected to other parts of the cutting torch. This is especially true when the overlap between the nozzle head and nozzle body is limited by a stop on the nozzle body. This can cause a mechanical coupling or clamping, which can hold the nozzle head and nozzle body on the cutting torch stable. In addition, this can greatly facilitate the replacement of the cutting nozzle on the cutting torch. A particularly resistant to the stresses during operation stable cutting nozzle can be created by the nozzle body is integrally formed with the nozzle head.
  • the design conditions for forming a parallel beam can be simplified if the convergent and / or divergent section of the Laval nozzle follows a curved longitudinal section contour.
  • the openings of the heating gas ducts are arranged at a gap to the openings of the heating oxygen channels, a further improvement of the mixture of heating gas and heating oxygen can be made possible, which has a positive effect on the efficiency and usability of the cutting nozzle.
  • the invention may be particularly distinguished when the post-mixing cutting nozzle according to the invention is used for a cutting torch.
  • the cutting torch has a connecting piece adjoining the cutting nozzle, which connects its heating oxygen feed line with the heating oxygen channel of the cutting nozzle, its heating gas feed line with the heating gas channel of the cutting nozzle and its cutting oxygen feed line with the cutting oxygen channel of the cutting nozzle, a dense and stable transition from the connecting lines of the cutting torch to the cutting nozzle can be achieved Channels of the cutting nozzle are created.
  • connection piece has an internal thread which, in engagement with the external thread of the sleeve, removably holds the cutting nozzle on the connection piece.
  • 1 is an end view of a cutting nozzle
  • FIG. 2 is a sectional view according to II-II of Fig. 1,
  • Fig. 3 is a sectional view according to III-III of Fig. 1 and
  • FIG. 4 is a partial view of a cutting torch with the cutting nozzle of Figures 1 to 3.
  • the cutting nozzle 1 shown, for example, in the figures has a plurality of heating oxygen channels 2, heating gas channels 3 and a cutting oxygen channel 4.
  • the cutting oxygen channel 4 merges into a Laval nozzle 5 with a convergent section 6 and a divergent section 7.
  • this exemption 9 occurs at least slightly mixing of the guided by the heating oxygen channels 2 and 3 gas channels gas.
  • the Laval nozzle of the cutting oxygen channel 4 is designed according to the invention as a parallel jet nozzle.
  • disturbing compression shocks are avoided at least in the area of the exemption 9.
  • a substantially parallel cutting oxygen jet 10 a tapering of the mixing region for heating oxygen and heating gas to the open end 11 of the release 9 can be avoided.
  • FIG. 2 further shows that the convergent and divergent sections 6 and 7 of the Laval nozzle 5 each follow a curved longitudinal sectional contour. Both sections 6 and 7 connect via a turning point 12 to each other.
  • the Laval nozzle 5 is arranged centrally relative to Schwarzsauerstoff- and Bankgaskanal 2 and 3.
  • the openings 13, 14 and 15 are arranged opposite the Laval nozzle 5 in the exemption 9 concentric opening.
  • the openings 13 of the heating gas channels 3 are arranged on the gap to the openings 14 and 15 of the heating oxygen channels 2, advantageous flow and mixing conditions result.
  • the cutting nozzle 1 consists of the one-piece nozzle body 16 and the nozzle head 8.
  • the nozzle head 8 is designed as a sleeve 17 which is plugged onto the nozzle body 16 and has a play 18 relative to the nozzle body 16 and in the direction of attachment a stop 19 is limited, which facilitates replacement of the sleeve 17 from the nozzle head 8.
  • an interference fit is formed between the nozzle body 16 and sleeve 17.
  • the nozzle body 16 may be integral with the nozzle head 8, which has not been shown in detail.
  • heating oxygen channel 2 the heating gas channel 3 and cutting oxygen channel 4 are provided or introduced, for example via holes. The nozzle body 16 thus leads these channels 2, 3 and 4 stable to the nozzle head 8.
  • a structurally simple, post-mixing cutting nozzle 1 is created.
  • this cutting nozzle 1 leads to a stable cutting torch 20, which can be partially seen in FIG.
  • a connecting piece 21 is shown, which adjoins the cutting nozzle 1 and heating medium supply line 22, Studgaszu effet 23, cutting oxygen feed line 24 leads.
  • the connecting piece 21 now establishes a connection between its heating oxygen feed line 22 and the heating oxygen channel 2 of the cutting nozzle 1, its heating gas feed line 23 and the heating gas channel 3 of the cutting nozzle 1 and its cutting oxygen feed line 24 and the cutting oxygen channel 4 of the cutting nozzle 1.
  • the fitting 21 for holding the cutting nozzle 1 to the cutting torch 20 is used.
  • the connecting piece 21 has an interior winch 25, which cooperates with the external thread 26 of the sleeve 17.
  • the sleeve 17 can be tightened to the connector 21 and consequently the nozzle body 16 is pressed into the connector 21 and clamped between the sleeve 17 and connector 21.
  • the connecting piece 21 has for this purpose a plurality of counter-stops 27, 28, 29, which also preferably form conical sealing surfaces between the connecting piece 21 and the nozzle body 16.
  • a counter-stop 27 in the connecting piece 21 is conceivable, which preferably forms a sealing surface between the connecting piece 21 and the nozzle body 16.
  • a tight gas connection between the channels 2, 3, 4 of the nozzle body 16 and the lines 22, 23, 24 of the connecting piece 21 is ensured in a structurally simple manner.
  • a worn cutting nozzle 1 on the cutting torch 20 is thus easily replaceable.

Landscapes

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

Abstract

L'invention concerne un chalumeau d'oxycoupage et une buse de coupe (1) comprenant au moins un canal d'oxygène de chauffe (2), au moins un canal de gaz de chauffe (3), au moins un canal d'oxygène de coupe (4) qui comporte une buse de Laval (5) dotée d'une partie convergente et d'une partie divergente (6, 7), et une tête de buse qui comporte un évidement (9) dans lequel débouchent le canal d'oxygène de coupe (2), le canal de gaz de chauffe (3) et la buse de Laval (5) du canal d'oxygène de chauffe (4). L'invention vise à créer une buse de coupe (1) à mélange de gaz stable et offrant un meilleur rendement. A cet effet, la buse de Laval (5) débouchant dans l'évidement (9) de la tête de buse (8) est réalisée sous la forme d'une buse à jet parallèle.
EP13780051.2A 2012-09-06 2013-09-06 Buse de coupe et chalumeau d'oxycoupage muni de ladite buse Active EP2901079B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50365/2012A AT513372B1 (de) 2012-09-06 2012-09-06 Schneiddüse und Schneidbrenner aufweisend diese Düse
PCT/AT2013/050175 WO2014036586A2 (fr) 2012-09-06 2013-09-06 Buse de coupe et chalumeau d'oxycoupage muni de ladite buse

Publications (2)

Publication Number Publication Date
EP2901079A2 true EP2901079A2 (fr) 2015-08-05
EP2901079B1 EP2901079B1 (fr) 2019-08-28

Family

ID=49474165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13780051.2A Active EP2901079B1 (fr) 2012-09-06 2013-09-06 Buse de coupe et chalumeau d'oxycoupage muni de ladite buse

Country Status (6)

Country Link
EP (1) EP2901079B1 (fr)
KR (1) KR20150091464A (fr)
AT (1) AT513372B1 (fr)
ES (1) ES2750371T3 (fr)
RU (1) RU2643924C2 (fr)
WO (1) WO2014036586A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN218983545U (zh) * 2022-12-14 2023-05-09 江苏乐希激光装备有限公司 一种用于火焰辅助激光切割的复合喷嘴

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE680158C (de) 1935-07-03 1939-12-21 Ulrich Noetzlin Dipl Ing UEberdruckduese fuer den Schneidsauerstoffstrahl bei Schneidbrennern
US2195384A (en) * 1937-04-08 1940-03-26 Linde Air Prod Co Metal cutting process
DE1952638A1 (de) * 1969-10-18 1971-05-13 Lotz Kg Gastechnik Brenner zum Sauerstoff-Brennschneiden
DE2059573A1 (de) * 1970-12-03 1972-06-08 Linde Ag Autogen-Schneidbrenner
DE2705551C3 (de) * 1977-02-10 1979-11-29 Linde Ag, 6200 Wiesbaden Brennschneiddüse
DE2948777A1 (de) * 1979-12-04 1981-06-11 Linde Ag, 6200 Wiesbaden Verfahren und brennschneidduese zum autogen-brennschneiden
DE3142840A1 (de) * 1981-10-29 1983-06-01 Messer Griesheim Gmbh, 6000 Frankfurt Schneidduese fuer das brennschneiden mit sauerstoff und erhoehtem sauerstoffdruck
US5700421A (en) * 1992-11-25 1997-12-23 Bissonnette; Claude Cutting nozzle assembly for a postmixed oxy-fuel gas torch
UA20934U (en) * 2006-09-11 2007-02-15 Illich Mariupol Metallurg Works Ojsc Machine cutting torch
WO2011042044A1 (fr) 2009-10-06 2011-04-14 Lotz Horst K Buses pour couper des pièces en acier et pièces en alliage de fer
WO2011103923A1 (fr) * 2010-02-25 2011-09-01 Lotz Horst K Buse pour couper des pièces en acier et des pièces à base d'alliages de fer
RU108729U1 (ru) * 2011-03-30 2011-09-27 Евгений Николаевич Лычагин Резак для кислородной резки металлов

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014036586A2 *

Also Published As

Publication number Publication date
WO2014036586A2 (fr) 2014-03-13
RU2015112314A (ru) 2016-10-27
RU2643924C2 (ru) 2018-02-06
EP2901079B1 (fr) 2019-08-28
ES2750371T3 (es) 2020-03-25
AT513372B1 (de) 2023-01-15
KR20150091464A (ko) 2015-08-11
AT513372A1 (de) 2014-03-15
WO2014036586A3 (fr) 2014-07-03

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