KR200173347Y1 - A tank for lpg - Google Patents

A tank for lpg Download PDF

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Publication number
KR200173347Y1
KR200173347Y1 KR2019990013770U KR19990013770U KR200173347Y1 KR 200173347 Y1 KR200173347 Y1 KR 200173347Y1 KR 2019990013770 U KR2019990013770 U KR 2019990013770U KR 19990013770 U KR19990013770 U KR 19990013770U KR 200173347 Y1 KR200173347 Y1 KR 200173347Y1
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KR
South Korea
Prior art keywords
liquefied petroleum
gas tank
petroleum gas
welded
circular side
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Application number
KR2019990013770U
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Korean (ko)
Inventor
박건구
Original Assignee
주식회사씨에스
주식회사위너
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Priority to KR2019990013770U priority Critical patent/KR200173347Y1/en
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Publication of KR200173347Y1 publication Critical patent/KR200173347Y1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/005—Storage of gas or gaseous mixture at high pressure and at high density condition, e.g. in the single state phase
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C11/00—Use of gas-solvents or gas-sorbents in vessels
    • F17C11/007—Use of gas-solvents or gas-sorbents in vessels for hydrocarbon gases, such as methane or natural gas, propane, butane or mixtures thereof [LPG]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/21—Shaping processes
    • F17C2209/2181—Metal working processes, e.g. deep drawing, stamping or cutting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

본 고안은 액화 석유 가스 탱크에 관한 것으로서, 액화 석유 가스 탱크의 용접 부위를 감소시켜 용접 불량등에 의한 손실을 절감할 수 있는 액화 석유 가스 탱크에 관한 것으로서, 액화 석유 가스 탱크의 강성을 향상시킬 수 있을 뿐만 아니라 강성을 저하시키지 않으면서 길이 및 용량을 증대시킬 수 있도록 한 액화 석유 가스 탱크에 관한 것이다. 본 고안은 소정 곡률로 형성된 2개의 원형 측면부(50) 사이를 밀폐하여 구성한 액화 석유 가스 탱크에서, 상기한 원형 측면부(50)가 양단에 용접되도록 그 사이에 위치됨과 아울러 용접 부분이 없고 양단이 개방된 원통으로 가공되어 상기한 원형 측면부(50)의 개방된 부분과 양단이 용접되면서 외부와 밀폐되도록 구성된 원통부(3)를 포함하여 구성되어 있다.The present invention relates to a liquefied petroleum gas tank, to a liquefied petroleum gas tank that can reduce the loss of welding by reducing the welded portion of the liquefied petroleum gas tank, it is possible to improve the rigidity of the liquefied petroleum gas tank In addition, the present invention relates to a liquefied petroleum gas tank capable of increasing length and capacity without deteriorating rigidity. According to the present invention, in a liquefied petroleum gas tank configured to seal between two circular side portions 50 formed with a predetermined curvature, the circular side portions 50 are positioned therebetween to be welded at both ends, and there is no welding portion and both ends are open. It is configured to include a cylindrical portion (3) which is processed into a cylindrical shape and the open portion and the both ends of the circular side portion 50 is sealed to the outside while being welded.

Description

액화 석유 가스 탱크{A tank for LPG}Liquefied Petroleum Gas Tank {A tank for LPG}

본 고안은 액화 석유 가스 탱크에 관한 것으로서, 보다 상세하게는 액화 석유 가스 탱크의 용접 부위를 감소시켜 용접 불량등에 의한 손실을 절감할 수 있는 액화 석유 가스 탱크에 관한 것이다.The present invention relates to a liquefied petroleum gas tank, and more particularly, to a liquefied petroleum gas tank that can reduce the welding site of the liquefied petroleum gas tank to reduce the loss due to poor welding.

일반적으로, 액화 석유 가스 탱크는 가정용 또는 차량용으로 많이 사용되는 바, 이는 가정용의 경우 약 20kg정도의 비교적 작은 용량을 갖도록 형성되고, 차량용의 경우에는 보다 큰 용량을 갖도록 형성된다.In general, the liquefied petroleum gas tank is used for home or vehicle, which is formed to have a relatively small capacity of about 20kg in the case of a household, and to have a larger capacity in the case of a vehicle.

즉, 도3에 도시된 바와 같이 가정용 또는 차량용 액화 석유 가스 탱크는, 소정 곡률을 갖도록 드로잉 성형된 원형 측면부(50)와, 상기한 원형 측면부(50)가 양측에 용접되고 용접선(W)이 형성되는 원통형의 중간부(51)로 구성되어 있다.That is, as illustrated in FIG. 3, the domestic or vehicle liquefied petroleum gas tank includes a circular side portion 50 which is formed and molded to have a predetermined curvature, and the circular side portion 50 is welded to both sides, and a weld line W is formed. It is composed of a cylindrical intermediate portion 51.

상기한 중간부(51)는 판상 플레이트를 롤러(미 도시)등으로 감아서 원통형으로 형성한 후 그 종단부를 용접으로 결합시켜 구성된 것이다.The intermediate portion 51 is formed by winding a plate-like plate with a roller (not shown) to form a cylindrical shape, and then joining the end portion by welding.

상기한 바와 같은 액화 석유 가스 탱크의 제작 공정을 설명하면 평판상인 플레이트를 금형과 펀치(미 도시)등을 사용하여 소정 곡률로 드로잉 성형하게 된다.The manufacturing process of the liquefied petroleum gas tank as described above will be described in that the plate in the form of a plate is draw-molded at a predetermined curvature using a mold and a punch (not shown).

드로잉 성형 후 원형 부분인 측면부가 형성되면, 소정 넓이 또는 소정 길이의 판상 플레이트를 롤러(미 도시)등으로 감아 원통형으로 성형하고, 그 맞닿는 종단 내, 외측을 용접으로 결합시켜 용접선(W)이 나타나도록 한다.When the side portion, which is a circular portion, is formed after the drawing molding, the plate-shaped plate of a predetermined width or a predetermined length is wound with a roller (not shown) to form a cylindrical shape, and the welding line W appears by joining the inside and the outside of the contact by welding. To do that.

원통형으로 감긴 중간부 양측에 측면부(50)를 내, 외부에서 용접하게 되면, 소정 용량을 갖는 소정 길이의 액화 석유 가스 탱크가 완성되는 것이다.When the side parts 50 are welded from the inside to the outside on both sides of the cylindrically wound intermediate part, a liquefied petroleum gas tank having a predetermined capacity is completed.

여기서, 상기한 액화 석유 가스 탱크를 양 측면부(50) 및 원통부(51)로 용접하여 구성하는 것은, 액화 석유 가스 탱크의 양측면을 이루는 측면부(50)를 현재 기술의 최대 드로잉 깊이까지 드로잉 가공한 후, 여기서 얻어진 2개의 드로잉 가공체를 부착하여도 일정 길이 이상(가정용 액화 석유 가스 탱크 또는 차량용 액화 석유 가스 탱크)으로 형성할 수 없기 때문이다.In this case, the liquefied petroleum gas tank is welded to both side portions 50 and the cylindrical portion 51. The liquefied petroleum gas tank is formed by drawing the side portions 50 which form both sides of the liquefied petroleum gas tank to the maximum drawing depth of the current technology. This is because, even if the two drawing workpieces obtained here are attached, they cannot be formed in a fixed length or more (a domestic liquefied petroleum gas tank or a vehicle liquefied petroleum gas tank).

즉, 원형 부분으로 드로잉 가공할 수 있는 깊이가 한정되어 있기 때문에, 양측면을 직접 드로잉 가공하여 결합시키면 소정 길이를 얻을 수 없는 것이다.That is, since the depth that can be drawn into a circular portion is limited, it is impossible to obtain a predetermined length when both sides are directly drawn and joined.

그러나, 상기한 바와 같이 액화 석유 가스 탱크의 중간 부분을 이루는 원통형의 중간부를 감아서 용접하여 구성하게 되면, 상기한 중간부의 양측에 측면부를 용접시키기 때문에, 중간부의 용접부와 측면부 및 중간부와의 용접부가 한점에서 만나는 부분이 발생되고, 이로 인해 이 부분의 강성이 약화되는 문제점이 있다.However, as described above, when the cylindrical intermediate portion constituting the intermediate portion of the liquefied petroleum gas tank is formed by welding, the side portions are welded to both sides of the intermediate portion, so that the weld portion of the intermediate portion and the weld portion between the side portion and the intermediate portion are welded. Where a part is encountered, which causes a problem that the stiffness of this part is weakened.

즉, 각각의 용접선(W)이 교차하는 삼각 지점이 하나의 포인트(WP)로 나타나게 됨으로써, 이 부분을 비파괴 검사등과 같은 검사 장비로 검사해보게 되면, 강성이 매우 약하거나 불량이 발생된 상태가 되는 것이다.That is, the triangular point where each welding line W intersects as one point WP, and when this part is inspected by inspection equipment such as non-destructive inspection, the rigidity is very weak or a defect is generated. To be.

따라서, 액화 석유 가스 탱크 제작에 따른 불량률이 매우 높게 되고, 이로 인해 제작 능률 저하 및 불량에 따른 제작비 손실등이 과다하게 되는 문제점이 있다.Therefore, the failure rate according to the production of the liquefied petroleum gas tank is very high, and thus there is a problem that the production cost is reduced due to the decrease in production efficiency and failure.

따라서, 본 고안의 목적은 상기한 문제점을 해결하기 위한 것으로서, 액화 석유 가스 탱크의 강성을 향상시킬 수 있을 뿐만 아니라 강성을 저하시키지 않으면서 길이 및 용량을 증대시킬 수 있는 액화 석유 가스 탱크를 제공함에 있다.Accordingly, an object of the present invention is to solve the above problems, to provide a liquefied petroleum gas tank that can not only improve the rigidity of the liquefied petroleum gas tank but also increase the length and capacity without reducing the rigidity. have.

또한, 액화 석유 가스 탱크 제작에 따른 불량을 감소시킴과 아울러 제작 비용을 절감할 수 있는 액화 석유 가스 탱크를 제공함에 있다.In addition, to provide a liquefied petroleum gas tank that can reduce the defects caused by the production of liquefied petroleum gas tank and reduce the production cost.

상기한 목적을 실현하기 위하여 본 고안은 소정 곡률로 형성된 2개의 원형 측면부 사이를 밀폐하여 구성한 액화 석유 가스 탱크에 있어서,In order to realize the above object, the present invention is a liquefied petroleum gas tank configured to seal between two circular side portions formed with a predetermined curvature,

상기한 원형 측면부가 양단에 용접되도록 그 사이에 위치됨과 아울러 용접 부분이 없고 양단이 개방된 원통으로 가공되어 상기한 원형 측면부의 개방된 부분과 양단이 용접되면서 외부와 밀폐되도록 구성된 원통부를 포함함을 특징으로 한다.The circular side portion is located therebetween to be welded to both ends, and there is no welded portion and both ends are processed into an open cylinder to include an open portion of the circular side portion and a cylindrical portion configured to be sealed to the outside while both ends are welded. It features.

도1은 본 고안에 따른 액화 석유 가스(LPG) 탱크를 도시한 사시도,1 is a perspective view showing a liquefied petroleum gas (LPG) tank according to the present invention,

도2는 원통부에서 굴곡부가 형성된 상태를 도시한 단면도,2 is a cross-sectional view showing a state in which a bent portion is formed in the cylindrical portion;

도3은 일반적인 액화 석유 가스 탱크를 도시한 사시도,3 is a perspective view showing a general liquefied petroleum gas tank,

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

1: 제1원형부 2: 제2원형부1: first circular part 2: second circular part

3: 원통부 4: 굴곡부3: cylindrical portion 4: bent portion

W: 용접선W: welding line

도1과 도2는 본 고안에 따른 액화 석유 가스 탱크를 도시한 사시도와 원통부의 단면도로서, 드로잉 가공을 통해 소정 깊이의 '∪'형 용기로 성형된 제1, 2원형부(1, 2)와, 상기한 제1, 2원형부(1, 2) 사이에 위치됨과 아울러 용접 부분이 없이 원통으로 가공되고 상기한 제1, 2원형부(1, 2)와 양단이 용접된 원통부(3)로 구성되어 있다.1 and 2 are a perspective view showing a liquefied petroleum gas tank according to the present invention, and a cross-sectional view of a cylindrical portion, wherein the first and second circular portions 1 and 2 are formed into a '∪' type container having a predetermined depth through drawing. And a cylindrical portion (3) which is located between the first and second circular portions (1, 2) and is machined into a cylinder without a welded portion, and the first and second circular portions (1, 2) and both ends are welded. It consists of).

특히, 상기한 원통부(3)에는 내부에 충진된 가스 팽창에 따른 완충 또는 흡수 능력을 갖도록, 원통부(3)의 외측으로 돌출 형성된 굴곡부(4)가 롤러 성형(미 도시)등을 통해 형성되어 있다.In particular, the cylindrical portion 3 has a bent portion 4 protruding outward from the cylindrical portion 3 to form a buffer (not shown) or the like so as to have a buffering or absorbing ability according to the gas expansion filled therein. It is.

즉, 내부 압력 증가 시 상기한 굴곡부(4)가 소정량 확장되면서 압력 증가분을 흡수할 수 있게 되는 바, 과다 압력에 따른 탱크 파손등을 방지할 수 있게 되는 것이다.In other words, when the internal pressure increases, the bent portion 4 expands by a predetermined amount to absorb the pressure increase, thereby preventing damage to the tank due to excessive pressure.

상기한 원통부(3)는 드로잉 공정으로 플레이트(S)를 최대한 깊게(DEEP DRAWING)한 후 원형 부분을 절단하면 얻어진다.The cylindrical portion 3 is obtained by cutting the circular portion after making the plate S as deep as possible (DEEP DRAWING) in the drawing process.

즉, 본원의 액화 석유 가스 탱크에서는 종래와 같이 3갈래의 용접선이 만나는 포인트(WP)가 없기 때문에, 이 부분에서 발생되는 불량을 방지하여, 액화 석유 가스 탱크 제작에 따른 불량률을 최소화시킬 수 있게 되는 것이다.That is, in the liquefied petroleum gas tank of the present application, since there is no point (WP) where the three welding lines meet as in the prior art, it is possible to prevent a defect generated in this portion, thereby minimizing the defective rate due to the liquefied petroleum gas tank production. will be.

상기한 바와 같은 액화 석유 가스 탱크의 제작 공정을 설명하면 평판상인 플레이트를 매우 깊게 드로잉할 수 있게 제작된 금형과 펀치(미 도시) 사이에 위치시키고, 이를 드로잉하여 3개의 드로잉체(제1, 2원형부(1, 2), 원통부(3))를 성형한다.Referring to the manufacturing process of the liquefied petroleum gas tank as described above, it is placed between the mold and the punch (not shown) made to draw the plate which is flat plate very deeply, and the three drawing bodies (first and second) are drawn by drawing them. Circular portions 1 and 2 and cylindrical portion 3 are formed.

상기한 3개의 드로잉체(1, 2, 3)중 원통부(3)를 이루게 되는 하나의 드로잉체에는 롤러등을 통해 하나 이상의 굴곡부(4)를 형성하게 된다.One drawing body forming the cylindrical portion 3 of the three drawing bodies 1, 2, and 3 is formed with at least one bent portion 4 through a roller or the like.

하나의 드로잉체(3)에 굴곡부(4)가 형성되면, 상기한 드로잉체(3)의 원형 부분을 절단하여 원통형으로 성형하게 된다.When the bent portion 4 is formed in one drawing body 3, the circular portion of the drawing body 3 is cut and molded into a cylindrical shape.

즉, 중간 부분에 굴곡부(4)가 형성된 원통부(3)가 형성되는 것인 바, 상기한 원통부(3)에는, 종래 감아서 용접하여 구성한 중간부(51)와 같은 용접선(W)이 없게 되고, 이로 인해 원통부(3)의 강성이 종래 중간부(51)에 비해 향상되는 것이다.That is, the cylindrical portion 3 formed with the bent portion 4 is formed in the middle portion. The cylindrical portion 3 has the same weld line W as the intermediate portion 51 which is conventionally wound and welded. As a result, the rigidity of the cylindrical portion 3 is improved compared to the conventional intermediate portion 51.

중간 부분에 굴곡부(4)가 형성된 원통부(3)가 성형 완료되면, 상기한 나머지 2개의 드로잉체(제1, 2원형부(1, 2)가 되는 것임)를, 원통부(3) 양측단부에 위치시킴과 아울러 이를 내, 외측에서 용접하여 액화 석유 가스 탱크로 형성하게 되는 것이다.When the cylindrical portion 3, in which the bent portion 4 is formed in the middle portion, is molded, the remaining two drawing bodies (which become the first and second circular portions 1 and 2) are formed on both sides of the cylindrical portion 3. In addition to being positioned at the end is welded from the inside, outside to form a liquefied petroleum gas tank.

원통부(3)와 제1, 2원형부(1, 2)를 용접하게 되면, 용접선이 서로 교차하게 되는 부분이 없는 바, 종래와 같이 용접선이 교차되는 것으로 인해 용접 불량 및 이에 따른 강성 저하가 발생되지 않게 되는 것이다.When the cylindrical portion 3 and the first and second circular portions 1 and 2 are welded, there is no portion where the welding lines cross each other. As a result, the welding defects and the stiffness deterioration due to the intersection of the welding lines are conventional. It will not occur.

또한, 상기한 바와 같이 최대한 깊게 드로잉한 제1, 2원형부(1, 2)의 사이에 용접선(W)이 없는 원통부(3)를 하나 이상 연결하게 되면, 종래와 같이 강성 저하 및 용접 불량이 발생되지 않도록 하면서, 매우 길게 액화 석유 가스 탱크를 제작할 수 있게 되는 것이다.In addition, when one or more cylindrical portions 3 without the welding line W are connected between the first and second circular portions 1 and 2 which are drawn as deeply as possible, the rigidity decreases and the welding defects as in the prior art. It is possible to manufacture a liquefied petroleum gas tank for a very long time without causing this to occur.

물론, 상기한 딥 드로잉 시에는 일반적인 드로잉과 같이 한번에 드로잉하는 것이 아니고 여러번에 거쳐 드로잉함으로써, 제1, 2원형부 및 원통부에 주름등이 형성되지 않도록 한다.Of course, in the deep drawing described above, the drawing is not performed at one time as in the general drawing, but by drawing through the plurality of times, so that wrinkles and the like are not formed in the first, the second circular part, and the cylindrical part.

이상과 같이 본 고안은 딥 드로잉(DEEP DRAWING)한 드로잉체인 제1, 2원형부의 사이에, 딥 드로잉(DEEP DRAWING)한 후 원형 부분을 절단하여 원통형으로 형성된 원통부를 용접함으로써, 용접선이 교차하지 않게 되고, 이로 인해 용접 불량에 따른 액화 석유 가스 탱크의 제조 불량을 최소화시킬 수 있는 잇점이 있는 것이다.As described above, the present invention is designed to cut a circular portion and then weld a cylindrical portion formed in a cylindrical shape between the first and second circular portions, which are deep drawing drawings, so as to prevent welding lines from intersecting. Therefore, there is an advantage that can minimize the manufacturing failure of the liquefied petroleum gas tank due to welding failure.

Claims (2)

소정 곡률로 형성된 2개의 원형 측면부 사이를 밀폐하여 구성한 액화 석유 가스 탱크에 있어서,In a liquefied petroleum gas tank configured to seal between two circular side portions formed at a predetermined curvature, 상기한 원형 측면부가 양단에 용접되도록 그 사이에 위치됨과 아울러 용접 부분이 없고 양단이 개방된 원통으로 가공되어 상기한 원형 측면부의 개방된 부분과 양단이 용접되면서 외부와 밀폐되도록 구성된 원통부를 포함함을 특징으로 하는 액화 석유 가스 탱크.The circular side portion is located therebetween to be welded to both ends, and there is no welded portion and both ends are processed into an open cylinder to include an open portion of the circular side portion and a cylindrical portion configured to be sealed to the outside while both ends are welded. Liquefied petroleum gas tank 제1항에 있어서, 상기한 원통부에는 내부에 충진된 가스 팽창에 따른 완충 또는 흡수 능력을 갖도록 내측 또는 외측으로 돌출 형성된 굴곡부를 포함함을 특징으로 하는 액화 석유 가스 탱크.The liquefied petroleum gas tank according to claim 1, wherein the cylindrical portion includes a curved portion protruding inward or outward to have a buffering or absorbing capacity according to gas expansion filled therein.
KR2019990013770U 1999-07-13 1999-07-13 A tank for lpg KR200173347Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190105976A (en) 2018-03-07 2019-09-18 다원텍 주식회사 LPG ISO tank containers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190105976A (en) 2018-03-07 2019-09-18 다원텍 주식회사 LPG ISO tank containers

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