WO2014036586A2 - Cutting nozzle and cutting torch having said cutting nozzle - Google Patents
Cutting nozzle and cutting torch having said cutting nozzle Download PDFInfo
- Publication number
- WO2014036586A2 WO2014036586A2 PCT/AT2013/050175 AT2013050175W WO2014036586A2 WO 2014036586 A2 WO2014036586 A2 WO 2014036586A2 AT 2013050175 W AT2013050175 W AT 2013050175W WO 2014036586 A2 WO2014036586 A2 WO 2014036586A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nozzle
- cutting
- laval
- oxygen
- head
- Prior art date
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, e.g. noise reduction means
- 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, e.g. noise reduction means
- 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
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES13780051T ES2750371T3 (en) | 2012-09-06 | 2013-09-06 | Cutting nozzle and cutting torch with this cutting nozzle |
KR1020157008152A KR20150091464A (en) | 2012-09-06 | 2013-09-06 | Cutting nozzle and cutting torch having said cutting nozzle |
EP13780051.2A EP2901079B1 (en) | 2012-09-06 | 2013-09-06 | Cutting nozzle and cutting torch having said cutting nozzle |
RU2015112314A RU2643924C2 (en) | 2012-09-06 | 2013-09-06 | Cutter nozzle and gas cutter with this nozzle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50365/2012A AT513372B1 (en) | 2012-09-06 | 2012-09-06 | Cutting nozzle and cutting torch having this nozzle |
ATA50365/2012 | 2012-09-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2014036586A2 true WO2014036586A2 (en) | 2014-03-13 |
WO2014036586A3 WO2014036586A3 (en) | 2014-07-03 |
Family
ID=49474165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2013/050175 WO2014036586A2 (en) | 2012-09-06 | 2013-09-06 | Cutting nozzle and cutting torch having said cutting nozzle |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2901079B1 (en) |
KR (1) | KR20150091464A (en) |
AT (1) | AT513372B1 (en) |
ES (1) | ES2750371T3 (en) |
RU (1) | RU2643924C2 (en) |
WO (1) | WO2014036586A2 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE680158C (en) | 1935-07-03 | 1939-12-21 | Ulrich Noetzlin Dipl Ing | Overpressure nozzle for the cutting oxygen jet in cutting torches |
US5700421A (en) | 1992-11-25 | 1997-12-23 | Bissonnette; Claude | Cutting nozzle assembly for a postmixed oxy-fuel gas torch |
WO2011042044A1 (en) | 2009-10-06 | 2011-04-14 | Lotz Horst K | Nozzle for cutting steel workpieces and workpieces made of iron alloys |
WO2011103923A1 (en) | 2010-02-25 | 2011-09-01 | Lotz Horst K | Nozzle for cutting steel workpieces and workpieces made of iron alloys |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2195384A (en) * | 1937-04-08 | 1940-03-26 | Linde Air Prod Co | Metal cutting process |
DE1952638A1 (en) * | 1969-10-18 | 1971-05-13 | Lotz Kg Gastechnik | Oxygen flame cutting torch |
DE2059573A1 (en) * | 1970-12-03 | 1972-06-08 | Linde Ag | Oxy-fuel cutting torch |
DE2705551C3 (en) * | 1977-02-10 | 1979-11-29 | Linde Ag, 6200 Wiesbaden | Cutting nozzle |
DE2948777A1 (en) * | 1979-12-04 | 1981-06-11 | Linde Ag, 6200 Wiesbaden | Autogenous flame cutting, esp. using oxy-acetylene - where air is added to heating flame to ensure adequate preheating of thick workpieces |
DE3142840A1 (en) * | 1981-10-29 | 1983-06-01 | Messer Griesheim Gmbh, 6000 Frankfurt | CUTTING NOZZLE FOR OXYGEN CUTTING WITH OXYGEN AND INCREASED OXYGEN PRESSURE |
UA20934U (en) * | 2006-09-11 | 2007-02-15 | Illich Mariupol Metallurg Works Ojsc | Machine cutting torch |
RU108729U1 (en) * | 2011-03-30 | 2011-09-27 | Евгений Николаевич Лычагин | OXYGEN METAL CUTTER |
-
2012
- 2012-09-06 AT ATA50365/2012A patent/AT513372B1/en active
-
2013
- 2013-09-06 KR KR1020157008152A patent/KR20150091464A/en not_active Application Discontinuation
- 2013-09-06 RU RU2015112314A patent/RU2643924C2/en active
- 2013-09-06 WO PCT/AT2013/050175 patent/WO2014036586A2/en active Application Filing
- 2013-09-06 EP EP13780051.2A patent/EP2901079B1/en active Active
- 2013-09-06 ES ES13780051T patent/ES2750371T3/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE680158C (en) | 1935-07-03 | 1939-12-21 | Ulrich Noetzlin Dipl Ing | Overpressure nozzle for the cutting oxygen jet in cutting torches |
US5700421A (en) | 1992-11-25 | 1997-12-23 | Bissonnette; Claude | Cutting nozzle assembly for a postmixed oxy-fuel gas torch |
WO2011042044A1 (en) | 2009-10-06 | 2011-04-14 | Lotz Horst K | Nozzle for cutting steel workpieces and workpieces made of iron alloys |
WO2011103923A1 (en) | 2010-02-25 | 2011-09-01 | Lotz Horst K | Nozzle for cutting steel workpieces and workpieces made of iron alloys |
Also Published As
Publication number | Publication date |
---|---|
AT513372B1 (en) | 2023-01-15 |
AT513372A1 (en) | 2014-03-15 |
EP2901079B1 (en) | 2019-08-28 |
RU2643924C2 (en) | 2018-02-06 |
WO2014036586A3 (en) | 2014-07-03 |
RU2015112314A (en) | 2016-10-27 |
EP2901079A2 (en) | 2015-08-05 |
ES2750371T3 (en) | 2020-03-25 |
KR20150091464A (en) | 2015-08-11 |
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