EP2625463A1 - Buse de découpe puissante pour la découpe en particulier de pièces d' uvre en acier - Google Patents

Buse de découpe puissante pour la découpe en particulier de pièces d' uvre en acier

Info

Publication number
EP2625463A1
EP2625463A1 EP11718956.3A EP11718956A EP2625463A1 EP 2625463 A1 EP2625463 A1 EP 2625463A1 EP 11718956 A EP11718956 A EP 11718956A EP 2625463 A1 EP2625463 A1 EP 2625463A1
Authority
EP
European Patent Office
Prior art keywords
cutting
oxygen
nozzle
nozzle body
channels
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
EP11718956.3A
Other languages
German (de)
English (en)
Other versions
EP2625463B1 (fr
Inventor
Alexander Deica
Wigbert Buhr
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.)
Alpine Metal Tech Gega GmbH
Original Assignee
Gega Lotz 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 Gega Lotz GmbH filed Critical Gega Lotz GmbH
Publication of EP2625463A1 publication Critical patent/EP2625463A1/fr
Application granted granted Critical
Publication of EP2625463B1 publication Critical patent/EP2625463B1/fr
Not-in-force 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, 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

Definitions

  • the invention relates to a heavy cutting nozzle for cutting steel workpieces and workpieces of iron alloys, in particular of slabs, blocks and billets, comprising a nozzle body with a thread for attachment to a cutting torch, a centrally located cutting oxygen channel, concentric thereto on a particular inner pitch circle arranged a plurality of Bankgaskanälen and concentrically on a further central pitch circle a plurality of Schwarzsauerstoffkanä- len, wherein the outflow openings of the media channels open in a space encompassed by the nozzle body free space.
  • Oxygen gas cutting torches are for cutting
  • Cutting oxygen oxidizes the heated metal to effect the cut.
  • the workpiece begins to burn and forms a gap that extends to a cut as the jet continues to run. Since this still creates heat, this cutting is burned as autogenous denotes, that is, there is a further preheating of the next steel layers of the point to be cut from the temperature, which is obtained from the combusting steel.
  • premixing premixed or differentiated according ⁇ mixed (post-mixed) or burner nozzles.
  • premixing nozzles heating oxygen and fuel gas are mixed within the burner head before it flows out to ignite.
  • a burner of the heating oxygen and cutting nachmischenden the heating gas from the burner in egg ⁇ nem unmixed stream are outputted. Turbulence mixes the streams before ignition.
  • the nozzle comprises a plurality of Schwarzsauerstoffbohrungen, which are arranged in an outer concentric circle around the axial cutting oxygen bore.
  • Each of the holes namely the axial cutting oxygen well, the hot gas wells and the heating oxygen wells, open into Outlet openings at an outflow end, which merges into a cylindrical clearance within the retaining nut, in which the cutting flame is formed.
  • this object is achieved in that the space enclosed by the nozzle body of the
  • Outflow openings of the media channels for cutting oxygen, heating oxygen and heating gas towards its outlet end is angled, conical or approximately semicircular and thereby causes the outflowing media are deflected at the oblique or curved exit surfaces towards the nozzle center, and at a further distance from the hard cutting nozzle, swirl outside the nozzle body with the surrounding air.
  • the workpiece to be cut by the arrangement of the media channels in the nozzle body of Starkschneiddüse, the special geometric design of the media channels for the supply of gas and oxygen and the autogenous burning ⁇ cut temperature required for heating and
  • the exit surfaces of stipulateka channels are inside the nozzle body and can be combined with each other if necessary.
  • the resulting angled, conical or semi-spherical ⁇ or optionally also cylindrical space for the discharge of media, namely cutting oxygen, heating oxygen and heating gas, causes a guidance of the flowing out ⁇ media.
  • the outflowing gases are deflected in the region of the inclined or curved exit surfaces towards the center and cause the media to fluidize at a significantly further distance from the hard cutting nozzle.
  • the Starkschneiddüse invention additionally comprises a plurality of oxygen ducts extending through the nozzle body and opens into an annular groove at the outlet end so that zusharm ⁇ Lich outflowing oxygen forms a tubular Sauer ⁇ fabric protection wall and a protective jacket. This protects the exit surface from contamination by dirt particles forming during flame cutting. These are ⁇ blown away from the protective surface of the escaping oxygen from the exit surface of the nozzle.
  • the protective jacket thus prevents the cooling effect of the oxygen sticking the dirt particles on the Düsenausgangssei ⁇ te.
  • the air / oxygen mixture additionally flowing out of the annular groove around the cutting oxygen, the heating gas and the heating oxygen forms the protective oxygen jacket, which prevents premature vortexing in the edge zones and minimizes the generation of noise.
  • the annular groove has a va ⁇ riablen cross section, preferably semicircular or rectangular ⁇ right.
  • the oxygen channels can be provided with at least one further rear-mounted duct for drawing in ambient air, wherein the channel from the outside of the nozzle body at the respective sour ⁇ fuel passage runs.
  • the included from the nozzle body clearance from the outlet openings of the media channels are cylindrical in shape towards its outlet end, and the media ⁇ channels open at right angles to the exit surface of the nozzle body comprised by the free space.
  • FIG. 2 is a longitudinal sectional view of the heavy cutting nozzle along the line A A of FIG. 1,
  • FIG. 3 is a sectional view of the heavy cutting nozzle along the line B -B of FIG. 1, 4 is a view "Y" of the heavy cutting nozzle according to FIG. 5,
  • Figure 5 is a sectional view of the Starkschneiddüse ent ⁇ long the line C -. C according to Figure 4.
  • Figure 6 is a sectional view of the Starkschneiddüse ent ⁇ long the line D -.. D of Fig 4,
  • Fig. 7 shows the detail "X" of FIG. 6 in a second
  • Fig. 8 shows the detail "X" of FIG. 6 in a third
  • the Starkscheiddüse 1 according to FIGS. 1 to 8 for Schnei ⁇ a workpiece 200 has a nozzle body 2, which is integrally formed. On the circumference of the Dü ⁇ seneffort 2 is provided with a hexagon 3. Another portion of the outer periphery of the nozzle body 2 has an external thread 4 to screw it with a suitable tool to a cutting torch 100, which is shown schematically in Fig. 3.
  • Fig. 1 shows the distribution of the outlet channels of the necessary media for the cutting process.
  • an axial cutting oxygen channel 5 is formed, which extends from the inlet side 6 to ei ⁇ nem space 7 at the exit surface 8 of the nozzle body 2, as shown in FIG. 2 can be seen.
  • the free space 7 is pot-shaped cylindrical.
  • the axial bore 5 has at its end region directed towards the free space 7 a conical enlargement 9, by means of which the cutting oxygen flowing through the cutting oxygen channel 5 is accelerated in speed and thus in its energy. At this end of the axial bore 5, the cutting flame is formed.
  • a plurality of heating gas channels 10, which are arranged concentrically in the nozzle body 2, are formed in an inner partial circle 10.
  • the nozzle body 2 further comprises a plurality of heating oxygen channels 11, which extend parallel to the cutting oxygen channel 5 from the inlet side 6 of the thick cutting nozzle 1 to the free space 7 of the nozzle body 2 in a central pitch circle 11.1. Furthermore, the nozzle body 2 has on its outlet side extending around the free space 9 annular groove 12 for further oxygen channels 13 which extend from the mitt ⁇ leren pitch circle 11.1 inclined from the inlet side 6 to the groove 12.
  • FIG. 3 shows a longitudinal section B -. B of Figure 1 through the nozzle body 2 with the cutting oxygen duct 5, a Schusauerstoffkanal 11 and an additional oxygen ⁇ channel 13 to the annular groove 12. Furthermore, in each case a further channel 14 for sucking Ambient air 15 is provided, which opens from the outside of the nozzle body 2 obliquely into the zuroisen Sauerstoffka ⁇ channel 13.
  • the media channels 5,11 occur in the free space 7 at the exit surface 8.
  • the additional oxygen from the other oxygen channels 13 occurs together with the detected by suction ambient air 15 of the channels 14 in the annular groove 12 and forms a tubular oxygen protective wall 16 to the Schneidflam ⁇ me to improve their efficiency.
  • the mixing of heating gas and heating oxygen and the associated highest achievable combustion temperature "T” and the protection of the exiting stream through the protective jacket of an air / oxygen mixture takes place at a greater ⁇ ren distance "A" between the Starkschneiddüse 1 and the surface of the workpiece 200th
  • Fig. 4 again shows the view according to FIG 1, the sections C -. C and D - D in Figures 5 and 6 verdeut ⁇ union..
  • FIG. 5 shows a longitudinal section C - C through the nozzle body 2 with the cutting oxygen channel 5, the Schugaskanä ⁇ len 10 and the Schusauerstoffkanälen that open into the free space 7.
  • 11 of the seneffort 2 comprised by the due-space 7 is tapered, that is conical in shape, so that the media heating gas and heating oxygen ⁇ inclined happen and the free space 7, mi- see and thereby cause the media to fluidize at a further distance "B" away from the hard cutting nozzle 1.
  • Fig. 6 shows a longitudinal section D - D in Fig.
  • the cutting oxygen channel 5 and the additional oxygen channel 13 runs along with the channel 14 for drawing in ambient air 15 to the annular groove twelfth the media channels 5,11 exit into the conical free ⁇ space. 7, the additional oxygen in the channels 13 and 14 occurs in the annular groove 12 off.
  • FIG. 7 shows an embodiment modified from FIG. 6, in which the free space 7 has a substantially conical or conical shape, wherein the conical or conical surface has angled surfaces.
  • Fig. 8 shows a detail X in FIG. 7 wherein the media exits for cutting oxygen and heating oxygen in egg ⁇ NEN approximately hemispherical space 7 occurs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Air Supply (AREA)

Abstract

L'invention concerne une buse de découpe puissante (1) pour la découpe de pièces d'oeuvre en acier et de pièces d'oeuvre (200) à base d'alliages de fer, en particulier de brames, de blocs et de billettes, qui présente un corps de buse (2) doté d'un filetage (4) pour la fixation sur un chalumeau (100). La buse de découpe puissante (1) comprend également un canal d'oxygène de découpe (5) disposé au centre, disposés de façon concentrique par rapport à ce canal sur un cercle partiel (10.1) interne défini, plusieurs canaux de gaz chaud (10) et de façon concentrique par rapport à celui-ci sur un autre cercle partiel (11.1) central, plusieurs canaux d'oxygène de chauffage (11), les ouvertures d'évacuation des canaux d'agent (5, 10, 11) débouchant dans un espace libre (7) enveloppé par le corps de buse (2). L'espace libre (7) enveloppé par le corps de buse (2) est conçu depuis les ouvertures de sortie des canaux d'agent (5, 10, 11) pour l'oxygène de découpe, l'oxygène de chauffage et le gaz chaud en direction de son extrémité de sortie de façon anguleuse, en forme de cône ou à peu près avec une forme semi-sphérique et fait que les agents sortants sont déviés sur les surfaces de sortie (F) obliques ou incurvées en direction du centre de buse, et tourbillonnent à une autre distance (B) de la buse de découpe puissante (1) de façon éloignée à l'extérieur du corps de buse (2) avec l'air environnant.
EP11718956.3A 2011-03-29 2011-03-29 Buse de découpe puissante pour la découpe en particulier de pièces d' uvre en acier Not-in-force EP2625463B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/054841 WO2012130290A1 (fr) 2011-03-29 2011-03-29 Buse de découpe puissante pour la découpe en particulier de pièces d'œuvre en acier

Publications (2)

Publication Number Publication Date
EP2625463A1 true EP2625463A1 (fr) 2013-08-14
EP2625463B1 EP2625463B1 (fr) 2016-06-29

Family

ID=44543925

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11718956.3A Not-in-force EP2625463B1 (fr) 2011-03-29 2011-03-29 Buse de découpe puissante pour la découpe en particulier de pièces d' uvre en acier

Country Status (11)

Country Link
EP (1) EP2625463B1 (fr)
JP (1) JP5782559B2 (fr)
KR (1) KR20130077891A (fr)
CN (1) CN103403449A (fr)
AU (1) AU2011364496A1 (fr)
BR (1) BR112013019315B1 (fr)
CA (1) CA2823240A1 (fr)
ES (1) ES2593963T3 (fr)
RU (1) RU2013147723A (fr)
WO (1) WO2012130290A1 (fr)
ZA (1) ZA201303354B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013106511B4 (de) * 2013-03-27 2015-09-24 Gefam Gmbh Düse zum Schneiden von Stahlwerkstücken
CN106051768A (zh) * 2016-06-24 2016-10-26 黄林 一种快速切割的喷火嘴
JP6087466B1 (ja) * 2016-08-09 2017-03-01 大陽日酸株式会社 ポストミックス水素用火口及び水素ガス切断方法
CN106180961A (zh) * 2016-08-26 2016-12-07 江苏亚威机床股份有限公司 一种双路并联空气穿孔用复合割嘴
CN106524165B (zh) * 2016-11-05 2018-11-06 宁波方太厨具有限公司 燃气灶具引射器
JP6568192B2 (ja) * 2017-12-19 2019-08-28 中外炉工業株式会社 バーナ
CN113091061A (zh) * 2021-05-06 2021-07-09 北京神科博斯热能工程技术有限公司 一种高效工业低氮燃烧器

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DE1529170B2 (de) * 1966-01-12 1970-07-23 Borchert, Alex, 4800 Bielefeld Düse für Schneidbrenner
DE2334027C2 (de) * 1973-07-04 1975-04-17 Messer Griesheim Gmbh, 6000 Frankfurt Düse für Autogen-Brenner
JPS6119306Y2 (fr) * 1980-05-19 1986-06-11
DE8218358U1 (de) * 1982-06-26 1982-10-28 GeGa Gesellschaft für Gasetechnik Lotz GmbH & Co KG, 6238 Hofheim Flachduese fuer einen brenner zum thermochemischen trennen und abhobeln
JPS6242257Y2 (fr) * 1984-12-29 1987-10-29
FR2602309B1 (fr) * 1986-07-30 1988-11-10 Soudure Autogene Francaise Buse de coupe siderurgique a double couronne de chauffe
US5700421A (en) 1992-11-25 1997-12-23 Bissonnette; Claude Cutting nozzle assembly for a postmixed oxy-fuel gas torch
US6277323B1 (en) 1992-11-25 2001-08-21 Oxy-Arc International Inc. Cutting nozzle assembly for a postmixed oxy-fuel gas torch
JP3238819B2 (ja) * 1994-02-03 2001-12-17 株式会社田中製作所 ポストミックス火口
CN2358343Y (zh) * 1998-12-30 2000-01-12 上海五钢(集团)有限公司 一种火焰切割枪割嘴
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JP4736100B2 (ja) * 2007-12-27 2011-07-27 哲男 原田 金属体用の溶断ノズル
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Also Published As

Publication number Publication date
JP2014514527A (ja) 2014-06-19
ZA201303354B (en) 2013-12-23
JP5782559B2 (ja) 2015-09-24
CN103403449A (zh) 2013-11-20
BR112013019315B1 (pt) 2022-02-08
CA2823240A1 (fr) 2012-10-04
KR20130077891A (ko) 2013-07-09
RU2013147723A (ru) 2015-05-10
AU2011364496A1 (en) 2013-05-23
ES2593963T3 (es) 2016-12-14
EP2625463B1 (fr) 2016-06-29
WO2012130290A1 (fr) 2012-10-04
BR112013019315A2 (pt) 2021-08-17

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