KR100792842B1 - Apparatus for preventing wear of gas duct - Google Patents

Apparatus for preventing wear of gas duct Download PDF

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Publication number
KR100792842B1
KR100792842B1 KR1020060129672A KR20060129672A KR100792842B1 KR 100792842 B1 KR100792842 B1 KR 100792842B1 KR 1020060129672 A KR1020060129672 A KR 1020060129672A KR 20060129672 A KR20060129672 A KR 20060129672A KR 100792842 B1 KR100792842 B1 KR 100792842B1
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South Korea
Prior art keywords
duct
gas
opening
gas duct
cover unit
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KR1020060129672A
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Korean (ko)
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우경회
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주식회사 포스코
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
    • F27D17/002—Details of the installations, e.g. fume conduits or seals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
    • B01D46/0047—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for discharging the filtered gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

A device for preventing wear of a gas duct is provided to prevent damages of an inner wall of the gas duct caused by oxidation due to high temperature gas that flows through a curved pipe part of the gas duct. A device for preventing wear of a gas duct comprises: a curved pipe duct(100) connected between a gas duct(500) that transfers high temperature gas from an electric furnace and a vertical duct(600) perpendicularly connected to the gas duct; an expansion cover unit(200) in which a vacuum chamber part(210) is formed by expanding an outer curved part of the curved pipe duct, and which has an opening(220) therein such that the opening is in communication with the vacuum chamber part; a fixing frame(300) in which fixing bolt grooves(310) are formed, and which is fixed to the edge of the opening side of the expansion cover unit; and a heat resistant cover plate(400) which is formed in a shape corresponding to that of the opening, and which has bolt holes(410) formed along the edge thereof corresponding to the fixing bolt grooves such that the heat resistant cover plate is fastened to the fixing bolt grooves through fixing bolts.

Description

가스덕트의 마모방지장치{APPARATUS FOR PREVENTING WEAR OF GAS DUCT}APDUATUS FOR PREVENTING WEAR OF GAS DUCT}

도 1은 종래기술에 따른 전기로에 연결되는 가스덕트를 도시한 구성도.1 is a block diagram showing a gas duct connected to the electric furnace according to the prior art.

도 2는 본 발명에 따른 가스덕트의 마모방지장치를 도시한 사시도.Figure 2 is a perspective view showing a wear protection device of the gas duct according to the present invention.

도 3는 본 발명에 따른 가스덕트의 마모방지장치를 도시한 측단면도.Figure 3 is a side cross-sectional view showing a wear protection device of the gas duct according to the present invention.

※도면의 주요 부분에 대한 부호설명※※ Code explanation for main part of drawing ※

100 : 곡관덕트 200 : 확장커버유닛100: curved duct 200: expansion cover unit

210 : 진공챔버부 220 : 개구210: vacuum chamber portion 220: opening

300 : 고정프레임 310 : 고정볼트홈300: fixed frame 310: fixed bolt groove

400 : 내열커버플레이트 410 : 볼트공400: heat-resistant cover plate 410: bolt hole

500 : 가스덕트 600 : 수직덕트500: gas duct 600: vertical duct

본 발명은 가스덕트의 마모방지장치에 관한 것으로서, 가스덕트의 곡관부위에 쿠션 역활을 하는 진공챔버부가 형성되어 고온가스에 의한 곡관부위의 국부적인 산화와 열화현상을 방지하는 가스덕트의 마모방지장치에 관한 것이다.The present invention relates to a wear protection device of the gas duct, the vacuum duct portion that acts as a cushion formed on the curved portion of the gas duct to prevent local oxidation and deterioration of the curved portion of the curved pipe by hot gas to prevent wear It is about.

일반적으로, 도 1 도시된 바와 같이, 전기로(10)와 집진기(미도시) 사이에는 조업중 발생되는 대량의 가스(Fume)을 냉각 및 포집하기 위해 독립적인 냉각튜브(40)를 갖는 가스덕트(20)와 수직덕트(30)가 연결된다. 이에 따라, 전기로(10)로부터 직접적인 고열을 갖는 고온가스는 다수개의 가스덕트(20)와 수직덕트(30)를 통해 집진기에 도달되어 집진이 이루어진다. Generally, as shown in FIG. 1, a gas duct having an independent cooling tube 40 between an electric furnace 10 and a dust collector (not shown) for cooling and collecting a large amount of gas generated during operation. 20 and the vertical duct 30 is connected. Accordingly, the hot gas having a high heat directly from the electric furnace 10 reaches the dust collector through the plurality of gas duct 20 and the vertical duct 30 to be collected.

그러나, 이러한 구성의 종래 가스덕트(20)에는 전기로(10)에서 취입된 미반응 산소와 카본이 반응하면서 고온가스가 이동되는 바, 이러한 고온가스에 의해 가스덕트(20)의 냉각튜브(40)에는 열화에 의한 산화현상이 발생되어 냉각수가 누수되는 문제가 발생되었다. However, in the conventional gas duct 20 having such a configuration, the hot gas is moved while the unreacted oxygen and carbon blown from the electric furnace 10 react, and thus the cooling tube 40 of the gas duct 20 is moved by the hot gas. ), The oxidation phenomenon due to deterioration is generated and the cooling water leaks.

특히, 가스덕트(20)의 곡관부위(R)에는 곡선 운동하는 고온가스로 인해 열화에 의한 산화가 심화됨에 따라, 해당 가스덕트(20)에서는 열적변형 및 대량 분진에 의한 마모현상으로 인한 심각한 손상으로 냉각튜브의 누수가 심각해 지는 문제가 있었다. 결국, 이렇게 냉각수가 가스덕트(20)내에 누수되면 누수된 냉각수는 집진기 내부의 백필터에 도달하여 집진효율을 현저하게 감소시키고, 이로 인한 환경오염이 발생시키는 우려를 유발시킨다. In particular, the curved portion (R) of the gas duct 20, due to the deepening of the oxidation due to deterioration due to the high-temperature gas curve, the gas duct 20 is severely damaged due to thermal deformation and wear caused by large dust As a result, the leak of the cooling tube became serious. As a result, when the coolant leaks in the gas duct 20, the leaked coolant reaches the bag filter inside the dust collector, thereby significantly reducing dust collection efficiency, thereby causing concern about environmental pollution.

이를 해결하기 위해 작업자는 조업을 중단시킨 후, 가스덕트 곡관부위에 투입되어 냉각튜브의 손상을 수리하는데, 이 경우 작업효율이 저하되고 생산성이 저하되는 문제가 있다. In order to solve this problem, after stopping the operation, the operator is put into the gas duct curved portion to repair the damage of the cooling tube, in this case there is a problem that the work efficiency is lowered and productivity is lowered.

본 발명의 목적은 전술된 종래기술의 문제점을 해결하기 위한 것으로서, 가스덕트의 곡관부위에서 유동하는 고온가스에 의한 산화로 인해 가스덕트의 내벽이 손상되는 것을 방지하는 가스덕트의 마모방지장치를 제공하는 것이다.An object of the present invention is to solve the above-mentioned problems of the prior art, to provide a wear protection device of the gas duct to prevent the inner wall of the gas duct is damaged by oxidation by the hot gas flowing in the curved portion of the gas duct. It is.

상기 목적을 달성하기 위해 본 발명은, 전기로에서 고온가스가 이동되는 가스덕트와 상기 가스덕트에 수직연결되는 수직덕트 사이를 상호 연결하는 곡관덕트; 내측에 진공챔버부가 형성되도록 상기 곡관덕트의 외측 굴곡부위가 확장 형성되고 상기 진공챔버부와 연통되는 개구를 갖는 확장커버유닛; 고정볼트홈이 형성되어 상기 확장커버유닛의 개구측 가장자리에 고정되는 고정프레임; 상기 개구와 대응되는 형상으로 형성되고, 고정볼트를 통해 상기 고정볼트홈에 결합되도록 가장자리를 따라 상기 고정볼트홈에 대응되는 볼트공이 형성되는 내열커버플레이트를 포함하는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a curved duct interconnecting a gas duct in which a hot gas is moved in an electric furnace and a vertical duct vertically connected to the gas duct; An expansion cover unit having an opening in which an outer bent portion of the curved duct is formed so as to form a vacuum chamber portion therein, and having an opening communicating with the vacuum chamber portion; A fixing frame in which a fixing bolt groove is formed and fixed to an opening side edge of the expansion cover unit; It is formed in a shape corresponding to the opening, characterized in that it comprises a heat-resistant cover plate is formed with a bolt hole corresponding to the fixing bolt groove along the edge to be coupled to the fixing bolt groove through the fixing bolt.

이때, 상기 확장커버유닛은 상기 곡관덕트의 외측 굴곡부위에 경사지게 돌출 형성되는 적어도 3개 이상의 경사측벽덕트가 상기 개구에 수렴되어 구성되고, 상기 개구는 상기 확장커버유닛의 굴곡부위 최외곽측에 형성되는 것이 바람직하다. 또한, 상기 확장커버유닛은 대향 배치되는 사각형 형상의 제1 및 제2경사측벽덕트와 상기 제1 및 제2경사측벽덕트 사이에 대향 배치되는 사다리꼴 형상의 제3 및 제4경사측벽덕트로 구성되고, 상기 개구는 사각형 형상으로 형성되는 것이 바람직하다.At this time, the expansion cover unit is configured by converging at least three or more inclined side wall ducts formed to be inclined to the outer bent portion of the curved duct to the opening, the opening is formed on the outermost side of the bent portion of the expansion cover unit It is desirable to be. In addition, the expansion cover unit is composed of a trapezoidal third and fourth inclined side wall ducts disposed between the first and second inclined side wall ducts of the rectangular shape opposed to the first and second inclined side wall ducts, , The opening is preferably formed in a rectangular shape.

첨부된 도면에 의거하여 본 발명의 실시예를 상세히 설명하기로 한다.An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 가스덕트의 마모방지장치의 사시도를 나타낸 도면이고, 도 3은 본 발명에 따른 가스덕트의 마모방지장치의 측단면도를 나타낸 도면이다.Figure 2 is a view showing a perspective view of the wear protection device of the gas duct according to the present invention, Figure 3 is a side cross-sectional view of the wear protection device of the gas duct according to the present invention.

도 2 및 도 3에 도시된 바와 같이, 본 발명에 따른 가스덕트의 마모방지장치는 가스덕트(500) 및 수직덕트(600) 사이를 상호 연결하는 곡관덕트(100)와, 개구(220)를 가지며 곡관덕트(100)의 외측 굴곡부위가 확장 연장되어 내측에 진공챔버부(210)가 형성되는 확장커버유닛(200)과, 개구(220)의 가장자리에 고정되는 고정프레임(300)과, 개구(220)를 패쇄하도록 개구(220)와 대응되는 형상으로 형성되는 내열커버플레이트(400)를 포함하는 구조이다.As shown in Figures 2 and 3, the wear protection device of the gas duct according to the present invention is a curved tube duct 100 and the opening 220 to interconnect the gas duct 500 and the vertical duct 600 And an extension cover unit 200 having an outer bent portion of the curved duct 100 extended to form a vacuum chamber 210 therein, a fixing frame 300 fixed to an edge of the opening 220, and an opening. The heat resistant cover plate 400 is formed to have a shape corresponding to the opening 220 to block the 220.

구체적으로 상기 곡관덕트(100)는 전기로부터 고온가스가 이동되는 가스덕트(500)와 상기 가스덕트(500)에 수직연결되는 수직덕트(600) 사이에 배치되어 이들을 상호 연결하되, 양단부가 상기 가스덕트(500)와 수직덕트(600)에 각각 연결되도록 굴곡 형성된다. 이때, 굴곡되는 곡관덕트(100)의 외측 굴곡부위에는 해당 외측으로 돌출 형성되는 확장커버유닛(200)이 마련된다. In detail, the curved duct 100 is disposed between the gas duct 500 through which hot gas is moved from electricity and the vertical duct 600 vertically connected to the gas duct 500, and interconnecting the gas ducts with both ends thereof. It is bent to be connected to the duct 500 and the vertical duct 600, respectively. At this time, the outer cover portion of the curved duct 100 is bent is provided with an expansion cover unit 200 protruding outward.

상기 확장커버유닛(200)은 곡관덕트(100)의 외측 굴곡부위로부터 확장 돌출 형성되어 내측에 진공챔버부(210)를 형성하는데, 이러한 진공챔버부(210)는 상기 가스덕트(500)에서 수직덕트(600)로 고온가스가 유동되는 경우 고온가스의 빠른 유속에 의해 국부적인 진공에 의해 발생하게 된다.The expansion cover unit 200 is formed to extend from the outer curved portion of the curved duct 100 to form a vacuum chamber portion 210, the vacuum chamber portion 210 is perpendicular to the gas duct 500 When hot gas flows into the duct 600, it is generated by a local vacuum due to the high flow rate of the hot gas.

예컨대, 상기 가스덕트(500)에서 수직덕트(600)로 고온가스가 유동되는 경우 상기 수직덕트(600)측으로 유동하는 빠른 속도의 고온가스는 밀폐된 상기 곡관덕트(100) 내부의 잔류가스를 빨아당겨 해당 내부의 기압을 낮추게 되는데, 이때, 기압이 낮아진 상기 곡관덕트(100)의 내부는 상기 확장커버유닛(200)의 곡관 외측 내부에 잔류하고 있는 잔류가스를 빨아당기며, 결국, 상기 확장커버유닛(200)의 곡관 외측 내부에는 진공 형성에 따른 진공챔버부(210)가 형성된다. 이로써, 상기 진공챔버부(210)는 곡관부위 내벽에 충돌하는 고온가스에 대한 쿠션 역활을 하여 고온가스에 의한 곡관부위의 국부적인 산화와 열화현상이 방지되도록 한다.For example, when hot gas flows from the gas duct 500 to the vertical duct 600, the high speed hot gas flowing toward the vertical duct 600 sucks residual gas inside the closed curved duct 100. Pull the pressure inside the lowering, at this time, the inside of the curved duct 100, the lowered air pressure sucks the residual gas remaining inside the curved tube of the expansion cover unit 200, and eventually, the expansion cover The inside of the curved tube of the unit 200 is formed with a vacuum chamber portion 210 according to the vacuum formation. As a result, the vacuum chamber portion 210 serves as a cushion for the hot gas colliding against the inner wall of the curved tube portion to prevent local oxidation and deterioration of the curved tube portion by the hot gas.

또한, 상기 확장커버유닛(200)은 대향 배치되는 사각형 형상의 제1 및 제2경사측벽덕트(230a),(230b)와 상기 제1 및 제2경사측벽덕트(230a),(230b) 사이에 대향 배치되는 사다리꼴 형상의 제3 및 제4경사측벽덕트(230c),(230d)가 상호 연결되어 구성된다. In addition, the expansion cover unit 200 is disposed between the first and second inclined side wall ducts 230a and 230b and the first and second inclined side wall ducts 230a and 230b having a rectangular shape facing each other. The trapezoidal third and fourth inclined side wall ducts 230c and 230d which are arranged to face each other are connected to each other.

여기서, 상기 제1 내지 제4경사측벽덕트(230a~230d)의 하부는 상기 곡관덕트(100)에 연결되고, 상기 제1 내지 제4경사측벽덕트(230a~230d)의 상부는 사각형 형상으로 형성되는 개구(220)에 수렴되며, 상기 개구(220)는 상기 확장커버유닛(200)의 굴곡부위 최외곽측에 형성된다.Here, a lower portion of the first to fourth inclined side wall ducts 230a to 230d is connected to the curved duct 100, and an upper portion of the first to fourth inclined side wall ducts 230a to 230d is formed in a quadrangular shape. Converging to the opening 220 is formed, the opening 220 is formed on the outermost side of the bent portion of the expansion cover unit 200.

이상의 설명에서는 본 발명의 바람직한 일 실시예에 따라 제1 내지 제4경사측벽덕트(230a~230d)에 의해 구성되는 확장커버유닛(200)에 대하여 설명하였으나, 이에 한정되지는 아니하며, 상기 확장커버유닛(200)은 상기 곡관덕트(100)의 외측 굴곡부위에 경사지게 돌출 형성되는 적어도 3개 이상의 경사측벽덕트(230)가 개구(220)에 수렴되는 구성을 벗어나지 않는 범위내에서 다양한 구조로 변경되어 적용될 수 있다.In the above description, the expansion cover unit 200 constituted by the first to fourth inclined side wall ducts 230a to 230d according to an exemplary embodiment of the present invention has been described, but is not limited thereto. The 200 may be changed and applied to various structures within the range not departing from the configuration in which at least three or more inclined side wall ducts 230 protruding obliquely to the outer bent portion of the curved duct 100 are converged to the opening 220. Can be.

한편, 상기 확장커버유닛(200)의 개구(220)에는 복수개의 고정볼트홈(310)이 형성되는 고정프레임(300)이 설치된다. 이러한 고정프레임(300)은 상기 개구(220)의 가장자리를 따라 고정 결합되어 상기 확장커버유닛(200)과 후술할 내열커버플레 이트(400)가 상호 결합되도록 한다.Meanwhile, a fixing frame 300 in which a plurality of fixing bolt grooves 310 are formed is installed in the opening 220 of the expansion cover unit 200. The fixed frame 300 is fixedly coupled along the edge of the opening 220 to allow the expansion cover unit 200 and the heat resistant cover plate 400 to be described later.

상기 내열커버플레이트(400)는 상기 곡관덕트(100)에 유동되는 고온가스에 의한 내열 손상을 방지하기 위한 것으로, 상기 확장커버유닛(200)의 개구(220)와 대응되는 형상으로 형성되어 상기 고정프레임(300)에 결합된다. 이를 위해 상기 내열커버플레이트(400)의 가장자리에는 고정볼트를 통해 고정볼트홈(310)에 결합되기 위한 복수개의 볼트공(410)이 상기 고정볼트홈(310)에 대응되도록 형성된다. The heat-resistant cover plate 400 is to prevent heat damage due to the hot gas flowing in the curved duct 100, is formed in a shape corresponding to the opening 220 of the expansion cover unit 200 is fixed Is coupled to the frame 300. To this end, a plurality of bolt holes 410 for coupling to the fixing bolt groove 310 through fixing bolts are formed at the edges of the heat resistant cover plate 400 to correspond to the fixing bolt grooves 310.

상술한 바와 같이, 본 발명의 가스덕트의 마모방지장치의 경우 가스덕트(500)의 곡관부위에 쿠션 역활을 하는 진공챔버부(210)가 형성되어 고온가스에 의한 곡관부위의 국부적인 산화 및 열화현상을 방지할 수 있다는 장점이 있다. 이로써, 가스덕트의 곡관부위에 위치한 냉각튜브에서 고온가스에 의한 산화현상으로 냉각수가 누수되는 종래 기술의 문제를 본 발명은 해결할 수 있다. As described above, in the gas duct wear protection device of the present invention, a vacuum chamber 210 serving as a cushion is formed on the curved portion of the gas duct 500 so that local oxidation and deterioration of the curved portion due to the hot gas are performed. The advantage is that the phenomenon can be prevented. Thus, the present invention can solve the problem of the prior art that the cooling water leaks due to the oxidation phenomenon by the hot gas in the cooling tube located on the curved portion of the gas duct.

본 발명은 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 제공되는 본 발명의 정신이나 분야를 벗어나지 않는 한도 내에서 본 발명이 다양하게 개량 및 변화될 수 있다는 것을 당업계에서 통상의 지식을 가진자에게 있어서 자명할 것이다.While the invention has been shown and described with respect to specific embodiments thereof, it will be appreciated that the invention can be variously modified and varied without departing from the spirit or scope of the invention as provided by the following claims. It will be obvious to those of ordinary skill.

이상에서 살펴본 바와 같이 본 발명에 의하면, 고온가스이 유동되는 가스덕트의 곡관부위에 진공챔버부가 형성되어 가스덕트 곡관부위의 국부적인 산화 및 열화현상을 방지하여 제품의 내구성을 향상시킬 수 있다는 이점이 있다.As described above, according to the present invention, a vacuum chamber part is formed at a curved portion of a gas duct through which hot gas flows, thereby preventing local oxidation and deterioration of the curved portion of the gas duct, thereby improving durability of the product. .

또한, 본 발명은 가스덕트의 수리중 작업자가 고온가스에 의해 산업안전재해를 입는 것을 방지하고, 효율적인 집진을 통한 환경 오염을 방지하고, 생산성을 향상시킬 수 있다는 이점이 있다.In addition, the present invention has the advantage that it is possible to prevent workers from being affected by industrial safety accidents by the hot gas during the repair of the gas duct, to prevent environmental pollution through efficient dust collection, and to improve productivity.

Claims (4)

전기로에서 고온가스가 이동되는 가스덕트(500)와 상기 가스덕트(500)에 수직연결되는 수직덕트(600) 사이를 상호 연결하는 곡관덕트(100);A curved pipe duct 100 interconnecting a gas duct 500 through which hot gas is moved in an electric furnace and a vertical duct 600 vertically connected to the gas duct 500; 내측에 진공챔버부(210)가 형성되도록 상기 곡관덕트(100)의 외측 굴곡부위가 확장 형성되고 상기 진공챔버부(210)와 연통되는 개구(220)를 갖는 확장커버유닛(200);An expansion cover unit (200) having an opening (220) in which an outer bent portion of the curved duct (100) is formed to expand and the communication with the vacuum chamber (210) is formed to form a vacuum chamber (210) inside; 고정볼트홈(310)이 형성되어 상기 확장커버유닛(200)의 개구(220)측 가장자리에 고정되는 고정프레임(300);Fixing frame groove 310 is formed is fixed frame 300 is fixed to the edge of the opening 220 side of the expansion cover unit 200; 상기 개구(220)와 대응되는 형상으로 형성되고, 고정볼트를 통해 상기 고정볼트홈(310)에 결합되도록 가장자리를 따라 상기 고정볼트홈(310)에 대응되는 볼트공(410)이 형성되는 내열커버플레이트(400)를 포함하는 것을 특징으로 하는 가스덕트의 마모방지장치.The heat-resistant cover is formed in a shape corresponding to the opening 220, the bolt hole 410 corresponding to the fixing bolt groove 310 is formed along the edge to be coupled to the fixing bolt groove 310 through a fixing bolt Abrasion preventing device for gas ducts comprising a plate (400). 제1항에 있어서, 상기 확장커버유닛(200)은 상기 곡관덕트(100)의 외측 굴곡부위에 경사지게 돌출 형성되는 적어도 3개 이상의 경사측벽덕트(230)가 상기 개구(220)에 수렴되어 구성되는 것을 특징으로 하는 가스덕트의 마모방지장치.The method of claim 1, wherein the expansion cover unit 200 is formed by converging at least three or more inclined side wall duct 230 formed protruding obliquely to the outer bent portion of the curved tube duct 100 in the opening 220. Abrasion prevention device of the gas duct, characterized in that. 제1항 또는 제2항에 있어서, 상기 개구(220)는 상기 확장커버유닛(200)의 굴곡부위 최외곽측에 형성되는 것을 특징으로 하는 가스덕트의 마모방지장치.According to claim 1 or 2, wherein the opening 220 is a wear protection device of the gas duct, characterized in that formed on the outermost side of the bent portion of the expansion cover unit (200). 제3항에 있어서, 상기 확장커버유닛(200)은 대향 배치되는 사각형 형상의 제1 및 제2경사측벽덕트(230a),(230b)와 상기 제1 및 제2경사측벽덕트(230a),(230b) 사이에 대향 배치되는 사다리꼴 형상의 제3 및 제4경사측벽덕트(230c),(230d)로 구성되고, 상기 개구(220)는 사각형 형상으로 형성되는 것을 특징으로 하는 가스덕트의 마모방지장치.The method of claim 3, wherein the expansion cover unit 200 is opposed to the first and second inclined side wall ducts 230a, 230b of the rectangular shape and the first and second inclined side wall ducts 230a, ( The third and fourth inclined side wall duct (230c, 230d) of the trapezoidal shape disposed opposite to each other between 230b), the opening 220 is a wear protection device of the gas duct, characterized in that formed in a rectangular shape. .
KR1020060129672A 2006-12-18 2006-12-18 Apparatus for preventing wear of gas duct KR100792842B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107655019A (en) * 2017-10-10 2018-02-02 苏州海陆重工股份有限公司 Wall and downward-flow flue front wall junction abrasion-proof structure after waste heat boiler uptake flue

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940011920B1 (en) * 1985-12-04 1994-12-27 아베리 인터내쇼날 코오포레이숀 Apparatus for constant pressure in line-web crush-scoring
JP2000227285A (en) * 1999-02-03 2000-08-15 Nippon Steel Corp Exhaust gas duct
KR200331185Y1 (en) 2003-07-21 2003-10-22 창원특수강주식회사 A water colling duct of electrode arc furmace
KR200422386Y1 (en) * 2006-05-17 2006-07-26 현대중공업 주식회사 Top bracing of diesel engine-dynamo set

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940011920B1 (en) * 1985-12-04 1994-12-27 아베리 인터내쇼날 코오포레이숀 Apparatus for constant pressure in line-web crush-scoring
JP2000227285A (en) * 1999-02-03 2000-08-15 Nippon Steel Corp Exhaust gas duct
KR200331185Y1 (en) 2003-07-21 2003-10-22 창원특수강주식회사 A water colling duct of electrode arc furmace
KR200422386Y1 (en) * 2006-05-17 2006-07-26 현대중공업 주식회사 Top bracing of diesel engine-dynamo set

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107655019A (en) * 2017-10-10 2018-02-02 苏州海陆重工股份有限公司 Wall and downward-flow flue front wall junction abrasion-proof structure after waste heat boiler uptake flue
CN107655019B (en) * 2017-10-10 2023-07-28 苏州海陆重工股份有限公司 Anti-wear structure for joint of back wall of rising flue and front wall of falling flue of waste heat boiler

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