KR20100070062A - Bellows type high pressure flexible joint with extension limiting member - Google Patents

Bellows type high pressure flexible joint with extension limiting member Download PDF

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Publication number
KR20100070062A
KR20100070062A KR1020080128653A KR20080128653A KR20100070062A KR 20100070062 A KR20100070062 A KR 20100070062A KR 1020080128653 A KR1020080128653 A KR 1020080128653A KR 20080128653 A KR20080128653 A KR 20080128653A KR 20100070062 A KR20100070062 A KR 20100070062A
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KR
South Korea
Prior art keywords
bellows
expansion
pipe
bellows pipe
limiting member
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KR1020080128653A
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Korean (ko)
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KR101041028B1 (en
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권오성
하성업
한상엽
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한국항공우주연구원
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
    • F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
    • F16L27/11—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L51/00—Expansion-compensation arrangements for pipe-lines
    • F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
    • F16L51/027—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with external reinforcement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
    • F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
    • F16L27/11—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
    • F16L27/111—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations the bellows being reinforced
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints Allowing Movement (AREA)

Abstract

PURPOSE: A high-pressure flexible pipe unit of bellows type having an extension restricting member is provided to prevent the excessive deformation of a bellows pipe by preventing the expansion of the pipe. CONSTITUTION: A high-pressure flexible pipe unit of bellows type having an extension restricting member comprises an expansion limit member(400) and a folding-type clamping member(500). The expansion limit member is installed in each gully(310) of the bellows pipe. The expansion limit member has elasticity, and restricts the expansion of the bellows pipe. The clamping member is installed outside the bellows pipe. The clamping member restricts longitudinal extension of the bellows pipe. The clamping member bends the bellows pipe in the limited range.

Description

확장제한부재를 갖는 벨로우즈형 고압 유연 배관부 {BELLOWS TYPE HIGH PRESSURE FLEXIBLE JOINT WITH EXTENSION LIMITING MEMBER}Bellows type high pressure flexible joint with bellows expansion member {BELLOWS TYPE HIGH PRESSURE FLEXIBLE JOINT WITH EXTENSION LIMITING MEMBER}

본 발명은 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부에 관한 것으로, 더욱 상세하게는 유체배관을 연결하는 벨로우즈관에 확장제한부재를 설치함으로써, 직경이 큰 벨로우즈관이라도 벨로우즈의 과도한 변형 없이 고압에 견딜 수 있는 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부에 관한 것이다.The present invention relates to a bellows-type high pressure flexible pipe having an expansion limiting member, and more particularly, by installing the expansion limiting member in a bellows pipe connecting a fluid pipe, even a large diameter bellows pipe can be subjected to high pressure without excessive deformation of the bellows. It relates to a bellows-type high pressure flexible pipe having an expansion limiting member that can withstand.

일반적으로 벨로우즈관은 고정되어 있지 않고 상대운동이 존재하는 유체배관을 서로 연결하는 것으로서, 두 유체배관의 결합부위에 이물질 침투 방지 및 진동 충격에 대한 완충, 흡수의 목적으로 주로 사용되고 있다.In general, the bellows pipe is used to connect the fluid pipes, which are not fixed and have a relative motion, to be used for the purpose of preventing foreign matter from penetrating into the coupling part of the two fluid pipes and buffering and absorbing the vibration shock.

통상 저압의 경우 벨로우즈관을 이용하여 유체배관을 연결하는데 별 어려움이 없으나 압력이 증가하게 되면 벨로우즈관의 형상에 의한 구조적 특징에 의해 내압을 이기지 못하고 벨로우즈관의 굴곡 부분이 부풀어 오르는 등의 형태로 변형이 발생한다.In general, in the case of low pressure, there is no difficulty in connecting the fluid pipe by using the bellows pipe. However, when the pressure increases, the curved part of the bellows pipe is inflated due to the structural characteristics of the bellows pipe. This happens.

이러한 단점을 보완하기 위하여 종래의 벨로우즈관은, 도 1 및 도 2에 도시된 바와 같이, 유체배관(10, 20)을 연결하는 벨로우즈관(30)의 벨로우즈를 여러겹 겹쳐서 제작하거나 벨로우즈관(30)의 외부를 철망(40) 등으로 보강하여 고압을 견딜 수 있도록 하였다.In order to compensate for these disadvantages, the conventional bellows pipe is manufactured by overlapping the bellows of the bellows pipe 30 connecting the fluid pipes 10 and 20, as shown in FIGS. 1 and 2, or the bellows pipe 30. ) To withstand the high pressure by reinforcing the outside of the wire mesh (40).

작은 직경의 벨로우즈관(30)의 경우 이러한 보완을 통하여 상당한 고압까지 벨로우즈관의 변형을 방지할 수 있었으나, 벨로우즈관의 직경이 커지게 되면 벨로우즈관이 견딜 수 있는 압력이 크게 낮아지게 되어 벨로우즈관의 형태가 변형되는 문제점이 있었다.In the case of the bellows pipe 30 having a small diameter, it was possible to prevent the deformation of the bellows pipe to a substantial high pressure through such a supplement. However, when the diameter of the bellows pipe is increased, the pressure that the bellows pipe can withstand is greatly lowered. There was a problem that the form is deformed.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 본 발명의 목적은 유체배관을 연결하는 벨로우즈관에 확장제한부재를 설치함으로써, 직경이 큰 벨로우즈관이라도 벨로우즈의 과도한 변형 없이 고압에 견딜 수 있는 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부를 제공하는 것이다.The present invention is to solve the above problems, an object of the present invention by installing an expansion limiting member in the bellows pipe connecting the fluid pipe, expansion can withstand high pressure even without a large deformation of the bellows pipe diameter It is to provide a bellows-type high pressure flexible pipe having a restricting member.

상기 목적은 본 발명에 따라, 두 유체배관을 연결하는 벨로우즈형 고압 유연 배관부에 설치되는 것으로서, 상기 벨로우즈관의 각 골에 설치되어 벨로우즈관의 확장을 제한하는 탄성을 갖는 확장제한부재와, 상기 벨로우즈관의 외부에 설치되어 벨로우즈관의 길이방향 신축을 제한함과 동시에 벨로우즈관을 제한된 범위 내에서 굽힘 변형가능하도록 하는 절첩형 클램핑부재에 의해 달성된다.The object is to be installed in the bellows-type high-pressure flexible pipe portion connecting the two fluid pipes, the expansion limiting member having elasticity to limit the expansion of the bellows pipe is installed in each of the bellows pipe, It is achieved by a foldable clamping member installed outside of the bellows pipe to limit the longitudinal stretching of the bellows pipe and to allow the bellows pipe to bend and deform within a limited range.

또한, 상기 확장제한부재는 상기 벨로우즈관의 골에 대응하는 형상으로 형성되어 벨로우즈관의 골에 끼워져 설치되는 끼움부와, 상기 끼움부의 외측에 연장형성되어 상기 벨로우즈관의 산 일부와 인접하도록 형성되는 지지부로 구성되는 확장방지링과, 상기 지지부의 외면에 설치되는 조임링으로 구성될 수 있다.In addition, the expansion limiting member is formed in a shape corresponding to the valley of the bellows pipe is fitted to be fitted to the valley of the bellows pipe, and is formed extending to the outside of the fitting portion is formed to be adjacent to the mountain portion of the bellows pipe The expansion preventing ring is composed of a support portion, and may be composed of a tightening ring installed on the outer surface of the support.

또한, 상기 확장방지링은 반원형의 쌍으로 형성되어 상호 결합에 의해 상기 벨로우즈관에 설치될 수 있다.In addition, the expansion preventing ring is formed in a pair of semi-circular can be installed in the bellows pipe by mutual coupling.

또한, 상기 지지부와 상기 벨로우즈관의 사이에 간격이 형성될 수 있다.In addition, a gap may be formed between the support and the bellows pipe.

또한, 상기 확장방지링은 탄성중합체 또는 불소중합체 중 어느 하나로 형성 될 수 있다.In addition, the expansion preventing ring may be formed of any one of an elastomer or a fluoropolymer.

또한, 상기 조임링은 금속재질로 형성될 수 있다.In addition, the fastening ring may be formed of a metal material.

또한, 상기 절첩형 클램핑부재는 상기 벨로우즈관의 양단에 대응하는 형상으로 형성되어 벨로우즈관의 양단을 감싸도록 설치되는 복수의 클램프와, 상기 복수의 클램프를 연결하되 벨로우즈관이 굽힘 변형가능하도록 연결하는 연결부로 구성될 수 있다.In addition, the foldable clamping member is formed in a shape corresponding to both ends of the bellows pipe and a plurality of clamps are installed to surround both ends of the bellows pipe, and connecting the plurality of clamps, but the bellows pipe is connected to bend deformable It can be composed of a connection.

또한, 상기 연결부는 상기 클램프의 사이에 설치되되, 상기 벨로우즈관의 외부를 감싸도록 설치되는 지지링과, 일측이 상기 클램프와 연결되고, 타측은 상기 지지링과 회동가능하게 연결되는 복수의 회동바로 구성될 수 있다.In addition, the connecting portion is installed between the clamp, the support ring is installed to surround the outside of the bellows pipe, one side is connected to the clamp, the other side is a plurality of pivot bars connected rotatably with the support ring Can be configured.

이에 의해, 유체배관을 연결하는 벨로우즈관에 확장제한부재를 설치함으로써 벨로우즈관의 확장을 방지하기 때문에, 직경이 큰 벨로우즈관이라도 벨로우즈의 과도한 변형 없이 고압에 견딜 수 있는 효과가 있다.This prevents the expansion of the bellows pipe by providing an expansion limiting member in the bellows pipe connecting the fluid pipe, so that even a bellows pipe having a large diameter can withstand high pressure without excessive deformation of the bellows.

이하 첨부된 도면을 참조하여 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 따른 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부는, 도 3 내지 도 5에 도시된 바와 같이, 벨로우즈관(300)의 각 골(310)에 설치되어 벨로우즈관(300)의 확장을 제한하는 탄성을 갖는 확장제한부재(400)와, 벨로우즈관(300)의 외부에 설치되어 벨로우즈관(300)의 길이방향 신축을 제한함과 동시에 벨로우즈관(300)을 제한된 범위 내에서 굽힘 변형가능하도록 하는 절첩형 클램핑부재(500) 로 구성된다.Bellows-type high-pressure flexible pipe portion having an expansion limiting member according to the present invention, as shown in Figure 3 to 5, is installed in each of the valleys 310 of the bellows pipe 300 to limit the expansion of the bellows pipe 300 The expansion limiting member 400 having an elasticity and the bellows pipe 300 are installed on the outside to limit the longitudinal expansion and contraction of the bellows pipe 300 and to bend and deform the bellows pipe 300 within a limited range. It is composed of a folding clamping member 500.

먼저, 확장제한부재(400)는, 도 6에 도시된 바와 같이, 벨로우즈관(300)의 각 골(310)에 끼워져 설치되는 확장방지링(410)과, 확장방지링(410)의 외면에 설치되는 조임링(420)으로 구성된다.First, the expansion limiting member 400, as shown in Figure 6, the expansion prevention ring 410 and fitted to each of the valleys 310 of the bellows pipe 300 and the outer surface of the expansion prevention ring 410 It is composed of a fastening ring 420 is installed.

확장방지링(410)은 벨로우즈관(300)의 골(310)에 대응하는 형상으로 형성되어 벨로우즈관(300)의 각 골(310)에 끼워져 설치되는 끼움부(411)와, 끼움부(411)의 외측에 좌우로 연장형성되어 벨로우즈관(300)의 산(320) 일부를 감싸도록 형성되는 지지부(412)로 구성된다.The expansion preventing ring 410 is formed in a shape corresponding to the valley 310 of the bellows pipe 300 and fitted to each of the valleys 310 of the bellows pipe 300, and a fitting part 411. It is formed of a support portion 412 is formed to extend to the outside of the left and right to surround a portion of the mountain 320 of the bellows pipe (300).

즉, 확장방지링(410)은 T자형으로 형성되어 하부인 끼움부(411)가 벨로우즈관(300)의 골(310)에 끼워져 설치되고, 상부인 지지부(412)는 골(310)의 양측 산(320) 일부를 감싸도록 설치된다.That is, the expansion preventing ring 410 is formed in a T-shape, the lower fitting portion 411 is fitted into the valley 310 of the bellows pipe 300, the upper support portion 412 is both sides of the bone 310 It is installed to surround a portion of the mountain (320).

이때, 지지부(412)와 벨로우즈관(300)의 산(320)과의 사이에는 벨로우즈관(300)의 굽힘 변형시 보다 원활한 굽힘 변형을 위한 간격(330)이 형성되는 것이 바람직하다.At this time, it is preferable that a gap 330 is formed between the support part 412 and the peak 320 of the bellows pipe 300 for more smooth bending deformation of the bellows pipe 300.

예를 들어 설명하면, 도 9 내지 도 10에 도시된 바와 같이, 벨로우즈관(300)의 골(310) 및 골(310)과 산(320)의 사이 부분은 끼움부(411)와 완전히 밀착되지만, 지지부(412)는 벨로우즈관(300)의 산(320)과 완전 밀착되지않고 일정 간격(330)을 두고 감싸도록 설치된다.For example, as illustrated in FIGS. 9 to 10, the valley 310 of the bellows tube 300 and the portion between the valley 310 and the peak 320 are completely in contact with the fitting portion 411. , The support 412 is installed so as not to be completely in contact with the mountain 320 of the bellows pipe 300 at a predetermined interval 330.

이는, 벨로우즈관(300)의 굽힘 변형시 벨로우즈관(300)의 거동 공간을 확보하여 원활한 구부림이 일어나도록 하기 위한 것이다.This is to ensure a smooth bend to secure the behavior space of the bellows pipe 300 during bending deformation of the bellows pipe 300.

상기와 같이, 벨로우즈관(300)의 각 골(310)에 끼워져 설치되는 확장방지링(410)에 의해 벨로우즈관(300)이 보강되기 때문에, 고압에서도 벨로우즈관(300)이 반경방향으로 변형되는 것을 방지하는 것이다.As described above, since the bellows pipe 300 is reinforced by the expansion preventing rings 410 that are fitted to each valley 310 of the bellows pipe 300, the bellows pipe 300 is deformed in a radial direction even at a high pressure. To prevent that.

이를 살펴보면, 벨로우즈관(300)의 골(310)은 끼움부(411)에 의해 보강되고, 산(320)은 지지부(412)에 의해 보강되어, 벨로우즈관(300) 내부의 압력이 증가하더라도 벨로우즈관(300)의 자체 강도뿐만 아니라 끼움부(411) 및 지지부(412)의 강도까지 더해지기 때문에 보다 높은 내부의 압력을 벨로우즈관(300)이 견딜 수 있게 되므로 고압에서도 벨로우즈관(300)의 변형을 방지할 수 있게 되는 것이다.Looking at this, the valley 310 of the bellows pipe 300 is reinforced by the fitting portion 411, the mountain 320 is reinforced by the support 412, even if the pressure inside the bellows pipe 300 increases bellows Not only the strength of the fitting part 411 and the support part 412 but also the strength of the fitting part 411 and the support part 412 are added, so that the bellows pipe 300 can withstand a higher internal pressure. Will be able to prevent.

이때, 확장방지링(410)은 탄성중합체나 불소중합체로 형성된다.At this time, the expansion preventing ring 410 is formed of an elastomer or a fluoropolymer.

일반적으로 중합체(polymer)는 고분자화합물질로서, 특히 탄성중합체(elastomer)는 높은 수준의 강도와 탄성을 동시에 가지는 물질이다.Generally, a polymer is a high molecular compound, and in particular, an elastomer is a material having a high level of strength and elasticity at the same time.

그리고, 흔히 테프론(teflon)이라고 불리는 불소중합체(fluoropolymer)는 탄성 측면에서는 탄성중합체에 미치지 못하지만 높은 수준의 강도와 극저온을 포함한 매우 넓은 온도범위를 견딜 수 있는 물질이다.A fluoropolymer, commonly called teflon, is a material that is less than an elastomer in terms of elasticity but can withstand a very wide temperature range including high levels of strength and cryogenic temperatures.

이러한, 탄성중합체 또는 불소중합체를 벨로우즈관(300)의 외부형상과 일치하도록 성형하여 설치함으로써, 고압에서 벨로우즈관(300)이 중합체에 밀착되어 벨로우즈 형상의 과도한 뒤틀림이나 반경방향으로 변형이 일어나지 않도록 방지하는 것이다.By forming the elastomer or fluoropolymer to match the external shape of the bellows pipe 300, the bellows pipe 300 is adhered to the polymer at high pressure to prevent the bellows shape from being excessively warped or deformed in the radial direction. It is.

여기서, 확장방지링(410)을 탄성중합체를 이용하여 형성하는 경우에는 벨로우즈관(300)이 상온에서 굽힘 변형시 보다 큰 각 변화를 이룰 수 있다는 특징이 있 으며, 불소중합체를 이용하여 확장방지링(410)을 형성하는 경우에는 벨로우즈관(300)의 굽힘 변형시 탄성중합체를 이용하였을 때 보다 각 변화량이 다소 작으나 넓은 온도범위에 대해 적용 가능하다는 특징이 있다.In this case, when the expansion preventing ring 410 is formed using an elastomer, the bellows pipe 300 may have a larger angular change during bending deformation at room temperature, and the expansion preventing ring using a fluoropolymer. In the case of forming the 410, the change amount of the bellows pipe 300 is somewhat smaller than when the elastomer is used in bending deformation, but it is characterized in that it is applicable to a wide temperature range.

만약, 확장방지링(410)을 탄성을 갖는 일반적인 고무재질 등으로 형성하는 경우에는 확장방지링(410)이 벨로우즈관(300) 내부의 압력을 견디지 못하고 변형되고 만다.If the expansion preventing ring 410 is formed of a general rubber material having elasticity or the like, the expansion preventing ring 410 is deformed without being able to withstand the pressure inside the bellows pipe 300.

그러나, 본 발명처럼 확장방지링(410)을 탄성중합체나 불소중합체로 형성하게 되면 확장방지링(410)은 벨로우즈관(300) 내부의 압력에 견딜 수 있는 충분한 강도를 가짐과 동시에 벨로우즈관(300)의 굽힘 변형시 벨로우즈관(300)을 원위치시킬 수 있는 탄성을 가질 수 있게 되므로, 탄성중합체와 불소중합체는 확장방지링의 재질로 가장 바람직한 것이다.However, when the expansion prevention ring 410 is formed of an elastomer or a fluoropolymer as in the present invention, the expansion prevention ring 410 has a sufficient strength to withstand the pressure inside the bellows pipe 300 and at the same time the bellows pipe 300 Since it is possible to have the elasticity to return the bellows pipe 300 in the bending deformation of the), the elastomer and the fluoropolymer is the most preferable material of the expansion prevention ring.

그리고, 확장방지링(410)은 벨로우즈관(300)의 산(320)을 넘어서 각 골(310)에 끼울 수 있을 만큼의 탄성을 갖지는 못하므로, 반원형태의 쌍으로 제작하여 상호 결합에 의해 벨로우즈관(300)의 각 골(310)에 상호 결합에 의해 설치된다.In addition, the expansion preventing ring 410 does not have enough elasticity to fit each valley 310 beyond the acid 320 of the bellows pipe 300, so as to make a pair of semi-circular form by mutual coupling Each valley 310 of the bellows pipe 300 is installed by mutual coupling.

이때, 쌍으로 형성된 확장방지링(410)은 별도의 결합부재(미도시)에 의해 결합되어 벨로우즈관(300)에 설치될 수도 있지만, 후술하는 조임링(420)에 의해 확장방지링(410)의 외측에서 조여져 결합될 수도 있다.At this time, the expansion prevention ring 410 formed in pairs may be installed in the bellows pipe 300 by being coupled by a separate coupling member (not shown), expansion prevention ring 410 by a tightening ring 420 to be described later It may be tightened on the outside of the coupling.

한편, 조임링(420)은, 도 7에 도시된 바와 같이, 확장방지링(410)의 외경에 대응하는 직경으로 형성되는 금속재질의 링으로서, 확장방지링(410)의 외면에 복수의 결합핀(421)에 의해 결합되어 확장방지링(410)이 반경방향으로 늘어나는 것을 방지한다.On the other hand, the tightening ring 420, as shown in Figure 7, the ring formed of a metal material having a diameter corresponding to the outer diameter of the expansion prevention ring 410, a plurality of coupling to the outer surface of the expansion prevention ring 410 It is coupled by the pin 421 to prevent the expansion prevention ring 410 is extended in the radial direction.

확장방지링(410)은 탄성을 갖는 중합체로 형성되기 때문에, 벨로우즈관(300)의 내부 고압에 의해 반경방향으로 확장될 수 있으므로, 이를 방지하기 위해 확장방지링(410)보다 높은 강도를 갖는 금속재질의 조임링(420)으로 확장방지링(410)의 외부를 보강하여 확장방지링(410)이 반경방향으로 확장되는 것을 방지하는 것이다.Since the expansion preventing ring 410 is formed of an elastic polymer, the expansion ring 410 may be expanded in the radial direction by the internal high pressure of the bellows pipe 300, so that the expansion ring 410 has a higher strength than that of the expansion preventing ring 410. Reinforcing the outside of the expansion prevention ring 410 with a tightening ring 420 of the material is to prevent the expansion prevention ring 410 is expanded in the radial direction.

즉, 벨로우즈관(300)의 반경방향으로의 확장을 확장방지링(410)이 1차적으로 방지하지만, 근본적으로 벨로우즈관(300)의 반경방향으로의 확장을 방지하는 것은 조임링에 의해 행해진다.That is, the expansion preventing ring 410 primarily prevents the expansion of the bellows pipe 300 in the radial direction, but essentially preventing the expansion of the bellows pipe 300 in the radial direction is performed by a tightening ring. .

한편, 절첩형 클램핑부재(500)는 벨로우즈관(300)의 양단에 설치되는 복수의 클램프(510)와, 복수의 클램프(510)를 연결하는 연결부(520)로 구성된다.Meanwhile, the folded clamping member 500 includes a plurality of clamps 510 installed at both ends of the bellows pipe 300, and a connection part 520 connecting the plurality of clamps 510.

클램프(510)는 내부에 벨로우즈관(300)의 양단에 대응하는 홈이 형성되어 벨로우즈관(300)의 외측에서 벨로우즈관(300)의 양단을 감싸도록 설치된다.The clamp 510 has grooves corresponding to both ends of the bellows pipe 300 therein, and is installed to surround both ends of the bellows pipe 300 at the outside of the bellows pipe 300.

그리고, 연결부(520)는 복수의 클램프(510)의 사이에 설치되는 지지링(521)과, 일측이 상기 클램프(510)와 고정되어 연결되고 타측은 지지링(521)과 회동핀(523)에 의해 회동가능하게 연결되는 복수의 회동바(522)로 구성된다.In addition, the connection part 520 has a support ring 521 installed between the plurality of clamps 510, one side of which is fixedly connected to the clamp 510, and the other side of the support ring 521 and the rotation pin 523. It is composed of a plurality of rotation bar 522 that is rotatably connected by.

예를 들어 설명하면, 클램프(510)는 유체배관(100, 200)의 직경에 대응하는 중공이 형성된 중공원통형상으로 형성되되, 일측 중공이 벨로우즈관(300)의 양단부에 대응되도록 확장되어 벨로우즈관(300)의 양단부를 감싸도록 설치된다.For example, the clamp 510 is formed in a hollow cylinder shape in which a hollow corresponding to the diameter of the fluid pipes 100 and 200 is formed, and one hollow is extended so as to correspond to both ends of the bellows pipe 300. It is installed to surround both ends of the (300).

그리고, 회동바(522)는 클램프(510)의 양측면에 고정설치되며, 클램프(510)의 사이에 형성되는 지지링(521)에 회동가능하게 연결된다.The rotation bar 522 is fixedly installed at both sides of the clamp 510 and is rotatably connected to the support ring 521 formed between the clamps 510.

이때, 지지링(521)과 회동바(522)의 연결부분에 회동핀(523)이 관통하여 연결되며, 회동핀(523)의 양측 머리부는 회동핀(523)의 몸통부보다 큰 직경을 갖도록 형성되어 지지링(521)과 회동바(522)가 이탈되지 않고 회동가능하게 연결되는 것이다.At this time, the pivot pin 523 is connected to the connecting portion of the support ring 521 and the pivoting bar 522 so that both heads of the pivoting pin 523 have a diameter larger than that of the trunk of the pivoting pin 523. The support ring 521 and the rotation bar 522 are formed to be rotatably connected without being separated.

이상과 같이, 클램프(510)에 의해 벨로우즈관(300)의 양측이 감싸지고 지지링(521)과 회동바(522)에 의해 양 클램프(510)의 위치가 고정되기 때문에, 벨로우즈관(300)이 길이방향으로 변형되는 것이 방지된다.As described above, since both sides of the bellows pipe 300 are wrapped by the clamp 510 and the positions of the clamps 510 are fixed by the support ring 521 and the rotation bar 522, the bellows pipe 300 is fixed. This deformation in the longitudinal direction is prevented.

여기서, 지지링(521)에 연결되는 복수의 회동바(522)는 각 클램프(510) 별로 다른 방향으로 연결되는 것이 바람직하다.Here, the plurality of pivoting bars 522 connected to the support ring 521 may be connected in different directions for each clamp 510.

도 8을 참조하여 설명하면, 도면상 상측에 설치된 클램프(510)는 회동바(522)가 X축 방향으로 나란히 설치되었고, 도면상 하측에 설치된 클램프(510)는 회동바(522)가 Y축 방향으로 나란히 설치되었다.Referring to FIG. 8, in the clamp 510 installed at the upper side in the drawing, the rotating bar 522 is installed side by side in the X-axis direction, and the clamp 510 provided at the lower side in the drawing has the rotating bar 522 in the Y axis. Installed side by side in the direction.

상기와 같이 회동바(522)가 다른 방향으로 설치되었기 때문에, 지지링(521)의 상측 벨로우즈관(300)은 화살표E의 방향으로 회동되며, 지지링(521)의 하측 벨로우즈관(300)은 화살표 F의 방향으로 회동될 수 있어 다양한 방향으로 벨로우즈관(300)을 구부릴 수 있게 되는 것이다.Since the rotating bar 522 is installed in the other direction as described above, the upper bellows pipe 300 of the support ring 521 is rotated in the direction of the arrow E, and the lower bellows pipe 300 of the support ring 521 is It can be rotated in the direction of the arrow F will be able to bend the bellows pipe 300 in various directions.

물론, 지지링(521)의 개수를 증가시키고 회동바(522)를 각기 다른 방향으로 연결하게 되면 더욱 다양한 방향으로 벨로우즈관(300)을 구부릴 수 있게 된다.Of course, by increasing the number of the support ring 521 and connecting the rotation bar 522 in different directions, it is possible to bend the bellows pipe 300 in more various directions.

상기와 같이 설치되는 절첩형 클램핑부재(300)에 의해 벨로우즈관(300)의 양측을 고정하여 벨로우즈관(300)이 길이방향으로 수축되거나 팽창되는 것을 방지함 과 동시에 벨로우즈관(300)이 굽힘 변형 가능하게 되는 것이다.By fixing both sides of the bellows pipe 300 by the folding-type clamping member 300 is installed as described above to prevent the bellows pipe 300 is contracted or expanded in the longitudinal direction and at the same time the bellows pipe 300 is bent deformation It becomes possible.

이하에서는 본 발명에 따른 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부의 작용에 대해서 설명한다.Hereinafter will be described the operation of the bellows-type high-pressure flexible pipe portion having an expansion limiting member according to the present invention.

벨로우즈관(300)의 내부로 고압의 유체가 흐를 경우 종래에는 벨로우즈관(300)이 반경방향으로 확장 변형되어 벨로우즈관(300)이 이를 견디지 못하고 터지게 되는 경우가 종종 발생하였다.When a high-pressure fluid flows into the bellows pipe 300, the bellows pipe 300 is deformed in a radial direction in the related art, and the bellows pipe 300 often fails to withstand it and bursts.

하지만, 본 발명은 벨로우즈관(300)의 외측에 탄성중합체 또는 불소중합체로 형성된 확장제한부재(400)를 설치함으로써, 벨로우즈관(300)이 확장제한부재(400)에 밀착되어 벨로우즈관(300)이 확장제한부재(400)에 의해 보강되어 반경방향으로 변형되는 것이 방지된다.However, the present invention by installing the expansion limiting member 400 formed of an elastomer or a fluoropolymer on the outside of the bellows pipe 300, the bellows pipe 300 is in close contact with the expansion limiting member 400, the bellows pipe 300 It is reinforced by the expansion limiting member 400 to prevent the deformation in the radial direction.

또한, 절첩형 클램핑부재(500)이 벨로우즈관(300)의 양단에 설치되어 벨로우즈관(300)이 길이방향으로 수축되거나 팽창되는 것을 방지한다.In addition, the folded clamping member 500 is installed at both ends of the bellows pipe 300 to prevent the bellows pipe 300 from contracting or expanding in the longitudinal direction.

벨로우즈관(300)의 내부 압력에 의해 구부림이 일어나게 되면, 도 10에 도시된 바와 같이, 구부러지는 쪽의 확장제한부재(400)는 상호 맞물려 눌려지게 되고, 구부러지는 쪽의 반대쪽 확장제한부재(400)는, 도 11에 도시된 바와 같이, 서로 이격되게 된다.When the bending occurs due to the internal pressure of the bellows pipe 300, as shown in FIG. 10, the expansion limiting members 400 of the bent sides are engaged with each other, and the expansion limiting member 400 opposite to the bent side thereof is pressed. ) Are spaced apart from each other, as shown in FIG. 11.

그 후, 벨로우즈관(300)의 내부 압력이 제거되면, 상호 맞물린 확장제한부재(400)의 탄성에 의해 벨로우즈관(300)는 원상태로 회복되게 된다.Then, when the internal pressure of the bellows pipe 300 is removed, the bellows pipe 300 is restored to its original state by the elasticity of the expansion limiting member 400 engaged with each other.

그러므로, 절첩형 클램핑부재(500)는 벨로우즈관(300)의 길이방향 변형을 방 지함과 동시에 내부 압력에 의해 굽힘 변형된 벨로우즈관(300)을 원상태로 회복시키게 되는 것이다.Therefore, the folded clamping member 500 prevents the longitudinal deformation of the bellows pipe 300 and at the same time restores the bellows pipe 300 that is bent and deformed by the internal pressure.

본 실시예 및 본 명세서에 첨부된 도면은 본 발명에 포함되는 기술적 사상의 일부를 명확하게 나타내고 있는 것에 불과하며, 본 발명의 명세서 및 도면에 포함된 기술적 사상의 범위 내에서 당업자가 용이하게 유추할 수 있는 변형예와 구체적인 실시예는 모두 본 발명의 기술적 사상의 범위에 포함되는 것은 자명하다.The embodiments and drawings attached to this specification are merely to clearly show some of the technical ideas included in the present invention, and those skilled in the art can easily infer within the scope of the technical ideas included in the specification and drawings of the present invention. It is apparent that all modifications and specific embodiments that can be included in the scope of the technical idea of the present invention.

도 1 및 도 2는 종래기술에 대한 도면이다.1 and 2 are views of the prior art.

도 3은 본 발명에 따른 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부의 사시도이다.3 is a perspective view of a bellows-type high pressure flexible pipe having an expansion limiting member according to the present invention.

도 4는 본 발명에 따른 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부의 부분 평단면도이다.4 is a partial cross-sectional view of a bellows-type high pressure flexible pipe having an expansion limiting member according to the present invention.

도 5는 도 4의 A-A선에 따른 단면도이다.5 is a cross-sectional view taken along the line A-A of FIG.

도 6은 본 발명에 따른 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부의 확장제한부재의 정면도이다.6 is a front view of the expansion limiting member of the bellows-type high-pressure flexible pipe having an expansion limiting member according to the present invention.

도 7은 본 발명에 따른 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부의 조임링의 정면도이다.7 is a front view of the fastening ring of the bellows-type high pressure flexible pipe having an expansion restricting member according to the present invention.

도 8은 본 발명에 따른 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부의 작동상태도이다.8 is an operational state diagram of a bellows-type high pressure flexible pipe having an expansion limiting member according to the present invention.

도 9는 도 8의 B부분의 확대도이다.9 is an enlarged view of a portion B of FIG. 8.

도 10은 도 8의 C부분의 확대도이다.FIG. 10 is an enlarged view of a portion C of FIG. 8.

도 11은 도 8의 D부분의 확대도이다.FIG. 11 is an enlarged view of a portion D of FIG. 8.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10, 20 : 유체배관 30 : 벨로우즈관 10, 20: fluid piping 30: bellows pipe

40 : 철망 100, 200 : 유체배관 40: wire mesh 100, 200: fluid piping

300 : 벨로우즈관 310 : 골300: bellows tube 310: goal

320 : 산 330 : 간격320: mountain 330: interval

400 : 확장제한부재 410 : 확장방지링400: expansion limiting member 410: expansion prevention ring

411 : 끼움부 412 : 지지부411: fitting portion 412: support portion

420 : 조임링 421 : 결합핀420: tightening ring 421: coupling pin

500 : 절첩형 클램핑부재 510 : 클램프500: folding type clamping member 510: clamp

520 : 연결부 521 : 지지링520: connection portion 521: support ring

522 : 회동바 523 : 회동핀522: rotating bar 523: rotating pin

Claims (8)

두 유체배관을 연결하는 벨로우즈형 고압 유연 배관부에 설치되는 것으로서,It is installed in the bellows type high pressure flexible pipe connecting two fluid pipes. 상기 벨로우즈관의 각 골에 설치되어 벨로우즈관의 확장을 제한하는 탄성을 갖는 확장제한부재와;An expansion limiting member installed at each valley of the bellows pipe and having elasticity to limit expansion of the bellows pipe; 상기 벨로우즈관의 외부에 설치되어 벨로우즈관의 길이방향 신축을 제한함과 동시에 벨로우즈관을 제한된 범위 내에서 굽힘 변형가능하도록 하는 절첩형 클램핑부재로 구성되는 것을 특징으로 하는 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부.Bellows-type high pressure having an expansion limiting member, which is installed on the outside of the bellows pipe to limit the longitudinal expansion and contraction of the bellows pipe and to bend and deform the bellows pipe within a limited range. Flexible piping. 상기 확장제한부재는,The expansion limiting member, 상기 벨로우즈관의 골에 대응하는 형상으로 형성되어 벨로우즈관의 골에 끼워져 설치되는 끼움부와, 상기 끼움부의 외측에 연장형성되어 상기 벨로우즈관의 산 일부와 인접하도록 형성되는 지지부로 구성되는 확장방지링과;An expansion preventing ring formed of a shape corresponding to the valley of the bellows tube and fitted into the valley of the bellows tube, and an extension part formed to extend outside the fitting portion and to be formed to be adjacent to a part of the mountain of the bellows tube. and; 상기 지지부의 외면에 설치되는 조임링으로 구성되는 것을 특징으로 하는 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부.Bellows-type high-pressure flexible pipe portion having an expansion limiting member, characterized in that consisting of a tightening ring installed on the outer surface of the support. 제2항에 있어서,The method of claim 2, 상기 확장방지링은 반원형의 쌍으로 형성되어 상호 결합에 의해 상기 벨로우즈관에 설치되는 것을 특징으로 하는 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부.The expansion preventing ring is formed in a pair of semi-circular bellows-type high-pressure flexible pipe having an expansion limiting member, characterized in that installed in the bellows pipe by mutual coupling. 제2항에 있어서,The method of claim 2, 상기 지지부와 상기 벨로우즈관의 사이에 간격이 형성되는 것을 특징으로 하는 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부.Bellows-type high-pressure flexible pipe portion having an expansion limiting member, characterized in that a gap is formed between the support and the bellows pipe. 제2항에 있어서,The method of claim 2, 상기 확장방지링은 탄성중합체 또는 불소중합체 중 어느 하나로 형성되는 것을 특징으로 하는 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부.The expansion preventing ring is a bellows-type high-pressure flexible pipe portion having an expansion limiting member, characterized in that formed of any one of an elastomer or a fluoropolymer. 제2항에 있어서,The method of claim 2, 상기 조임링은 금속재질로 형성되는 것을 특징으로 하는 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부.Bellows-type high-pressure flexible pipe portion having an expansion limiting member, characterized in that the tightening ring is formed of a metallic material. 제1항에 있어서,The method of claim 1, 상기 절첩형 클램핑부재는,The folding type clamping member, 상기 벨로우즈관의 양단에 대응하는 형상으로 형성되어 벨로우즈관의 양단을 감싸도록 설치되는 복수의 클램프와;A plurality of clamps formed in a shape corresponding to both ends of the bellows pipe and installed to surround both ends of the bellows pipe; 상기 복수의 클램프를 연결하되, 벨로우즈관이 굽힘 변형가능하도록 연결하는 연결부로 구성되는 것을 특징으로 하는 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부.Bellows-type high-pressure flexible pipe portion having an expansion limiting member, characterized in that for connecting the plurality of clamps, the bellows pipe is connected to bend and deformable. 제7항에 있어서,The method of claim 7, wherein 상기 연결부는,The connecting portion, 상기 클램프의 사이에 설치되되, 상기 벨로우즈관의 외부를 감싸도록 설치되는 지지링과;A support ring installed between the clamps and installed to surround the outside of the bellows pipe; 일측이 상기 클램프와 연결되고, 타측은 상기 지지링과 회동가능하게 연결되는 복수의 회동바로 구성되는 것을 특징으로 하는 확장제한부재를 갖는 벨로우즈형 고압 유연 배관부.One side is connected with the clamp, the other side is a bellows-type high-pressure flexible pipe portion having an expansion limiting member, characterized in that consisting of a plurality of rotation bars connected to the support ring rotatably.
KR1020080128653A 2008-12-17 2008-12-17 Bellows type high pressure flexible joint with extension limiting member KR101041028B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101426731B1 (en) * 2014-06-10 2014-08-05 주식회사 진광건설엔지니어링 Protective pipe for underground cable
EP3091264A1 (en) * 2015-05-04 2016-11-09 Sjm Co., Ltd. Flexible conduit element
KR20180062641A (en) * 2016-12-01 2018-06-11 한국항공우주연구원 Gimbal bellows module
US20180363818A1 (en) * 2015-05-04 2018-12-20 Sjm Co. Ltd. Flexible Conduit Element

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101335923B1 (en) 2011-12-19 2013-12-03 한국항공우주연구원 Bellows Type High Pressure Flexible Joint with Spring supported Extension Limiting Member
KR101933176B1 (en) 2018-08-23 2018-12-31 한국씰마스타주식회사 Pressure-resistant bellows

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527481A (en) 1969-02-10 1970-09-08 Ethylene Corp Flexible coupling having expansion and contraction limiting means
FR2519110B1 (en) 1981-12-30 1985-08-09 Rudolph Tuyaux Flexibles EXPANSION BELLOWS
KR20060072883A (en) * 2004-12-24 2006-06-28 한국항공우주연구원 Apparatus for connecting two pipes that has double bellows pipes and the funcion of vacuum insulation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101426731B1 (en) * 2014-06-10 2014-08-05 주식회사 진광건설엔지니어링 Protective pipe for underground cable
EP3091264A1 (en) * 2015-05-04 2016-11-09 Sjm Co., Ltd. Flexible conduit element
WO2016177747A1 (en) * 2015-05-04 2016-11-10 Sjm Co. Ltd. Flexible conduit element
US20180363818A1 (en) * 2015-05-04 2018-12-20 Sjm Co. Ltd. Flexible Conduit Element
KR20180062641A (en) * 2016-12-01 2018-06-11 한국항공우주연구원 Gimbal bellows module

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