KR100620543B1 - Gas cutting tip - Google Patents

Gas cutting tip Download PDF

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Publication number
KR100620543B1
KR100620543B1 KR1020040034089A KR20040034089A KR100620543B1 KR 100620543 B1 KR100620543 B1 KR 100620543B1 KR 1020040034089 A KR1020040034089 A KR 1020040034089A KR 20040034089 A KR20040034089 A KR 20040034089A KR 100620543 B1 KR100620543 B1 KR 100620543B1
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South Korea
Prior art keywords
gas
hole
high pressure
pressure oxygen
brown gas
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KR1020040034089A
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Korean (ko)
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KR20050108873A (en
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신중달
송치문
신경창
정갑균
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신중달
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Priority to KR1020040034089A priority Critical patent/KR100620543B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K7/00—Cutting, scarfing, or desurfacing by applying flames
    • B23K7/08—Cutting, scarfing, or desurfacing by applying flames by applying additional compounds or means favouring the cutting, scarfing, or desurfacing procedure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/10—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to cutting or desurfacing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K7/00—Cutting, scarfing, or desurfacing by applying flames
    • B23K7/10—Auxiliary devices, e.g. for guiding or supporting the torch
    • B23K7/102—Auxiliary devices, e.g. for guiding or supporting the torch for controlling the spacial relationship between the workpieces and the gas torch

Abstract

본 발명은 브라운가스를 사용하는 가스절단기의 가스절단팁에 관한 것으로, 원통형상을 가지며 상부에는 중앙으로 향하는 고압산소 공급도관(2)과 그 주위에 위치하는 브라운가스 공급도관(3)을 가지고 브라운가스 공급도관(3)에는 역화방지 필터(6)가 내장되며 하부는 노즐이 수용되는 공간부(4)가 형성되며 하부 내부에는 나선부(5)가 형성된 홀더(1)와, 원통형상을 가지며 중앙에는 고압산소 배출공(11)이 형성되고 그 주위에는 다수개의 브라운가스 배출공(12)이 형성되며 고압산소 배출공(11)은 동일한 직경의 홀(13)과 이 홀에 연결되는 직경이 확대되는 확대홀(14)을 가지는 노즐(10)로 구성되어 브라운가스 화염을 고압산소의 분산흐름으로 화염직진성을 완화시켜 절단 시 가공물의 초기 표면이 용융되는 문제점을 해결한다.        The present invention relates to a gas cutting tip of a gas cutting machine using brown gas, having a cylindrical shape and having a brown gas supply conduit (3) located around the center of the high pressure oxygen supply conduit (2) toward the center. The gas supply conduit 3 has a flashback prevention filter 6 embedded therein, and a lower portion of the gas supply conduit 3 has a space 4 for accommodating the nozzle and a holder 1 having a spiral portion 5 formed therein, and a cylindrical shape. A high pressure oxygen discharge hole 11 is formed in the center, and a plurality of brown gas discharge holes 12 are formed around the high pressure oxygen discharge hole 11. The high pressure oxygen discharge hole 11 has a hole 13 having the same diameter and a diameter connected to the hole. It consists of a nozzle 10 having an enlarged hole 14 is enlarged to solve the problem that the initial surface of the workpiece melts when cutting to reduce the straightness of the flame to the Brown gas flame flow of high pressure oxygen.

브라운가스, 홀더, 노즐Brown Gas, Holder, Nozzle

Description

가스절단팁{Gas cutting tip}Gas cutting tip

도1은 본 발명의 가스절단팁의 홀더를 도시하는 단면도       1 is a cross-sectional view showing the holder of the gas cutting tip of the present invention;

도2는 본 발명의 가스절단팁의 노즐을 도시하는 평면도       Fig. 2 is a plan view showing the nozzle of the gas cutting tip of the present invention.

도3은 본 발명의 가스절단팁의 노즐을 도시하는 저면도       Fig. 3 is a bottom view showing the nozzle of the gas cutting tip of the present invention.

도4는 본 발명의 가스절단팁의 노즐 단면도       Figure 4 is a nozzle cross section of the gas cutting tip of the present invention

<도면의 주요 부분에 대한 부호의 설명>       <Explanation of symbols for the main parts of the drawings>

1: 홀더 2: 고압산소 공급도관 3: 브라운가스 공급도관       1: holder 2: high pressure oxygen supply conduit 3: brown gas supply conduit

4: 공간부 6: 역화방지 필터 10: 노즐        4: space part 6: flashback prevention filter 10: nozzle

11: 고압산소 배출공 12: 브라운가스 배출공       11: high pressure oxygen outlet 12: brown gas outlet

본 발명은 브라운가스를 사용하는 가스절단팁에 관한 것이다.The present invention relates to a gas cutting tip using Brown gas.

브라운가스를 이용하는 분야는 보일러, 소각로 등 여러분야가 있다. 그러나 가스절단에 브라운가스를 사용하는 예는 없었다.Brown gas is used in boilers, incinerators, etc. However, there are no examples of using Brown Gas for gas cutting.

통상, 가스절단기는 아세틸렌, LPG 가스를 사용하였으나 이 연소장치에 맞추기 위해 열량을 높히거나 연소속도를 줄여주는 물질을 사용하여 왔으며 혼합가스 자체만으로 절단 시 화염의 역화 및 고온의 집중 염으로 인해 모재의 윗부분이 용융되거나 비드의 탈착 현상 등으로 상품화 할 수 없었다.In general, the gas cutting machine uses acetylene and LPG gas, but has been using a material that increases the heat or decrease the combustion speed to fit the combustion device, and when cutting with the mixed gas itself, The upper part could not be commercialized due to melting or bead desorption.

더욱이, LPG 가스 절단기는 예열산소와 고압산소를 함께 사용하여 홀더에 도관이 3개 형성되고 LPG 가스가 연소시 유독가스가 발생한다.Moreover, the LPG gas cutting machine uses preheated oxygen and high pressure oxygen together to form three conduits in the holder, and toxic gas is generated when the LPG gas is burned.

또한 화염에 의한 절단부 용융손실이 최대 10mm 나 된다.In addition, the melting loss of the cut portion by the flame is up to 10 mm.

본 발명의 목적은 가스절단기에 브라운가스를 사용하기 위해 역화방지 필터를 내장하고 고압산소가 공급되는 도관과 브라운가스가 공급되는 도관을 가지는 홀더와 그 선단에 결합되고 화염분사 배출공을 가지는 노즐로 구성되는 가스절단팁을 제공하고자 하는 것이다.An object of the present invention is a nozzle having a flame spray discharge hole coupled to the holder and the tip having a built-in backfire filter and a high-pressure oxygen supplied conduit and a brown gas supplied conduit to use the brown gas in the gas cutting machine It is to provide a gas cutting tip is configured.

본 발명의 가스절단팁은 원통형상을 가지며 상부에는 중앙으로 향하는 고압산소 공급도관과 그 주위에 위치하는 브라운가스 공급도관을 가지고 브라운가스 공급도관에는 역화방지 필터가 내장되며 하부는 노즐이 수용되는 공간부가 형성되고 하부 내부에는 나선부가 형성된 홀더와, 원통형상을 가지며 중앙에는 고압산소 배출공이 형성되고 그 주위에는 다수개의 브라운가스 배출공이 형성되며 고압산소 배출공은 동일한 직경의 홀과 이 홀에 연결되는 직경이 확대되는 확대홀을 가지는 노즐로 구성된다.       Gas cutting tip of the present invention has a cylindrical shape, the upper portion has a high-pressure oxygen supply conduit toward the center and the brown gas supply conduit located around the brown gas supply conduit has a built-in backfire prevention filter, the lower part is a space accommodating the nozzle The upper part has a holder formed with a spiral part in the lower part, a cylindrical shape, a high pressure oxygen discharge hole is formed in the center, and a plurality of Brown gas discharge holes are formed around the high pressure oxygen discharge hole, which is connected to the hole of the same diameter and the hole. It consists of a nozzle which has an expansion hole which enlarges in diameter.

본 발명을 첨부된 도면을 참조하여 상세히 설명한다.The present invention will be described in detail with reference to the accompanying drawings.

도1에는 본 발명의 가스절단팁의 홀더가 단면도로 도시된다.1 is a cross-sectional view of a holder of a gas cutting tip of the present invention.

홀더(1)는 원통형상을 가지며 상부에는 중앙으로 향하는 고압산소 공급도관(2)과 그 주위에 위치하는 브라운가스 공급도관(3)을 가진다.       The holder 1 has a cylindrical shape and has a high pressure oxygen supply conduit 2 directed toward the center and a Brown gas supply conduit 3 positioned around the holder 1.

브라운가스는 산소수소 혼합가스로 수소가 완전 연소할 수 있는 산소량을 자체 함유하고 있어 별도의 산소없이 연소함으로 기존의 절단기에 부착된 예열산소 홀이 필요없어 홀더의 제작이 용이하고 간단하게 사용할 수 있다.       Brown gas is oxygen mixed gas, and it contains the amount of oxygen that hydrogen can completely burn, so it does not need the preheated oxygen hole attached to the existing cutting machine because it burns without any additional oxygen. .

따라서, 고압산소가 적은 양만 요구되므로 고압산소의 양을 절약할 수 있다.        Therefore, since only a small amount of high pressure oxygen is required, the amount of high pressure oxygen can be saved.

브라운가스 공급도관(3)에는 역화방지 필터(6)가 설치된다.       The brown gas supply conduit 3 is provided with a flashback prevention filter 6.

홀더(1)의 하부는 가스절단팁이 수용되는 공간부(4)가 형성되며 하부 내부에는 나선부(5)가 형성된다.       The lower part of the holder 1 is formed with a space 4 for accommodating the gas cutting tip, and the spiral part 5 is formed inside the lower part.

도2에 본 발명의 가스절단팁의 노즐이 평면도로서 도시된다.       In Fig. 2, the nozzle of the gas cutting tip of the present invention is shown in plan view.

노즐(10)은 원통형상을 가지며 중앙에는 고압산소 배출공(11)이 형성되고 그 주위에는 다수개의 브라운가스 배출공(12)이 형성된다.       The nozzle 10 has a cylindrical shape, a high-pressure oxygen discharge hole 11 is formed in the center and a plurality of Brown gas discharge holes 12 are formed around the nozzle 10.

도면에는 브라운가스 배출공(12)이 6개로 도시되나, 용량에 따라 8개로도 설계가능하다.       6 shows the brown gas discharge holes 12, but it is possible to design as many as eight depending on the capacity.

도3에 본 발명의 가스절단팁의 노즐이 저면도로서 도시되고, 도4에는 본 발명의 가스절단팁의 노즐이 단면도로서 도시된다.       Fig. 3 shows the nozzle of the gas cutting tip of the present invention as a bottom view, and Fig. 4 shows the nozzle of the gas cutting tip of the present invention as a cross sectional view.

도4를 참조하면, 고압산소 배출공(11)은 동일한 직경의 홀(13)과 이 홀에 연결되는 직경이 확대되는 확대홀(14)을 가진다.       Referring to FIG. 4, the high pressure oxygen discharge hole 11 has a hole 13 having the same diameter and an enlarged hole 14 having an enlarged diameter connected to the hole.

본 발명의 브라운가스 절단시에는 브라운가스의 화염직진성을 확산시켜 절 단모서리가 용융되지 않고 직각을 유지하는 것이 중요하다.       When cutting the brown gas of the present invention, it is important to spread the flame straightness of the brown gas to maintain the right angle without melting the cutting edge.

따라서, 고압산소 배출공(11)의 확대홀(14)의 형성은 중요하다.       Therefore, the formation of the enlarged hole 14 of the high-pressure oxygen discharge hole 11 is important.

브라운가스 배출공(12)은 동일한 직경을 가진다.       Brown gas discharge hole 12 has the same diameter.

노즐(10)의 외부면에는 나선부(15)가 형성되어 도1의 홀더(1)의 나선부(5)에 결합된다.       A spiral portion 15 is formed on the outer surface of the nozzle 10 and is coupled to the spiral portion 5 of the holder 1 of FIG. 1.

본 발명의 홀더와 노즐의 설계는 역화를 방지시키기 위해 홀더 용량을 노즐 용량보다 크게 설계한다.       The holder and nozzle design of the present invention designs the holder capacity larger than the nozzle capacity to prevent backfire.

상기와 같은 본 발명의 가스절단팁의 구성은 쿨링수단을 가지는 절단팁에도 적용 가능하다.       The configuration of the gas cutting tip of the present invention as described above is applicable to a cutting tip having a cooling means.

본 발명의 가스절단팁은 브라운가스 불꽃 자체의 순간적으로 집중되는 고온효과로 인해 절단을 위한 예열이 거의 요구되지 않는다. 예를 들어 두께 200 mm 모재를 기준으로 LPG 가스절단기는 예열시간 90초가 요구되나 본 발명의 브라운가스 절단기는 10초 미만이 소요된다.       The gas cutting tip of the present invention requires little preheating for cutting due to the instantaneously concentrated high temperature effect of the Brown gas flame itself. For example, the LPG gas cutting machine requires a preheating time of 90 seconds based on a base material of 200 mm thickness, but the brown gas cutting machine of the present invention takes less than 10 seconds.

또한 절단 시 노란화염(Yellow Fume)이 발생하지 않아 오염을 일으키지 않아 친 환경적이다. 용접 손실 폭은 4 mm 이다.       In addition, yellow flame (Yellow Fume) does not occur during cutting, it does not cause pollution and is environmentally friendly. The weld loss width is 4 mm.

상기와 같이 구성된 본 발명의 가스절단팀은 브라운가스 화염을 고압산소의 분산흐름으로 화염직진성을 완화시켜 절단 시 모재의 초기 표면이 용융되는 문제점을 해결하는 효과를 제공한다.Gas cutting team of the present invention configured as described above provides the effect of resolving the problem that the initial surface of the base material is melted when cutting to reduce the straightness of the flame to the brown gas flame flow of high pressure oxygen.

또한 본 발명의 가스절단팁은 브라운가스를 사용하므로 용접속도를 종래의 분당 100 mm 에서 130 mm 로 증대시키고 손실 폭도 종전 10 mm에서 4 mm 로 줄이는 효과를 제공한다.In addition, since the gas cutting tip of the present invention uses brown gas, the welding speed is increased from 100 mm to 130 mm per minute and the loss width is reduced from 10 mm to 4 mm.

Claims (1)

원통형상을 가지며 상부에는 중앙으로 향하는 고압산소 공급도관(2)과 그 주위에 위치하는 브라운가스 공급도관(3)을 가지고 브라운가스 공급도관(3)에는 역화방지 필터(6)가 내장되며 하부는 노즐이 수용되는 공간부(4)가 형성되고 하부 내부에는 나선부(5)가 형성된 홀더(1)와,       It has a cylindrical shape and has a high pressure oxygen supply conduit 2 directed toward the center and a brown gas supply conduit 3 positioned around the brown gas supply conduit 3. A holder 1 having a space 4 for accommodating the nozzle and having a spiral 5 formed therein; 원통형상을 가지며 중앙에는 고압산소 배출공(11)이 형성되고 그 주위에는 다수개의 브라운가스 배출공(12)이 형성되며 고압산소 배출공(11)은 동일한 직경의 홀(13)과 이 홀에 연결되는 직경이 확대되는 확대홀(14)을 가지는 노즐(10)로 구성되며, 브라운가스 절단시에는 상기 확대홀(14)에 의해 브라운가스의 화염직진성을 확산시켜 피절단물의 절단모서리가 용융되지 않고 직각을 유지할 수 있도록 된 것을 특징으로 하는 가스절단팁.       It has a cylindrical shape and a high pressure oxygen discharge hole 11 is formed in the center and a plurality of Brown gas discharge holes 12 are formed around the high pressure oxygen discharge hole 11 is formed in the hole 13 and the hole of the same diameter It consists of a nozzle (10) having an enlarged hole (14) having an enlarged diameter to be connected, and when cutting the brown gas, the flame straightness of the brown gas is diffused by the enlarged hole (14) so that the cutting edge of the cutting object is not melted. Gas cutting tip, characterized in that the right angle can be maintained without.
KR1020040034089A 2004-05-14 2004-05-14 Gas cutting tip KR100620543B1 (en)

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KR100620543B1 true KR100620543B1 (en) 2006-09-14

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KR100616135B1 (en) * 2004-12-03 2006-08-25 주식회사 포스코 Steel plate cutting apparatus using Brown gas and ignition tip thereof
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KR20030042266A (en) * 2001-11-22 2003-05-28 현대중공업 주식회사 LNG Nozzle for Gas Cutting

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