KR20030048965A - connection duct - Google Patents

connection duct Download PDF

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Publication number
KR20030048965A
KR20030048965A KR1020010079024A KR20010079024A KR20030048965A KR 20030048965 A KR20030048965 A KR 20030048965A KR 1020010079024 A KR1020010079024 A KR 1020010079024A KR 20010079024 A KR20010079024 A KR 20010079024A KR 20030048965 A KR20030048965 A KR 20030048965A
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KR
South Korea
Prior art keywords
flange
corrugated pipe
gasket
hole
connection hole
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KR1020010079024A
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Korean (ko)
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KR100454077B1 (en
Inventor
정구증
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정구증
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Priority to KR10-2001-0079024A priority Critical patent/KR100454077B1/en
Publication of KR20030048965A publication Critical patent/KR20030048965A/en
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Publication of KR100454077B1 publication Critical patent/KR100454077B1/en

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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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
    • F16L27/1012—Flanged joints
    • 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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints Allowing Movement (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Abstract

PURPOSE: An expansion joint pipe is provided to absorb vibration and shock, and to prevent the corrosion of the pipe caused by fluid. CONSTITUTION: Both ends of a corrugated pipe(5) are fit into a connection hole(10) in each flange(1a,1b). A first welding unit(6) is formed at both ends of the corrugated pipe, and fixes the corrugated pipe on the connection hole. A gasket(7) is fixed on the flange by a second welding unit(8). The second welding unit covers a portion of the first welding unit, and prevents the exposure of the connection hole.

Description

신축 이음관{connection duct}Expansion ducts

본 발명은 신축 이음관에 관련된 것으로써, 더 상세히는 진동 및 충격을 흡수함과 동시에 유체에 의한 부식을 방지할 수 있는 구조의 신축 이음관을 제공하는 것에 관한 것이다.The present invention relates to expansion joints, and more particularly, to providing expansion joints having a structure capable of absorbing vibration and shock and preventing corrosion by fluid.

일반적으로 유체 등이 흐르는 관과 관 사이 또는 분기점에는 이음관이 설치된다. 상기 이음관은 가해지는 유체의 압력에 의하여 파열되거나, 유연 진동 등의 지속적인 충격파로 인한 피로가 가해져 연결 부분이 쉽게 파괴되는 문제점이 있다.In general, a joint pipe is installed between the pipe through which the fluid and the like flow, or between branch points. The joint tube is ruptured by the pressure of the applied fluid, or fatigue due to continuous shock waves such as flexible vibration, there is a problem that the connection portion is easily broken.

상기와 같은 문제점을 해결하기 위하여 도 1 및 도 2 구조의 신축 이음관 구조가 공지되어 있다.In order to solve the above problems, there is a known expansion joint structure of Figure 1 and 2 structure.

상기 종래의 신축 이음관은 상부 플랜지(1a)와 하부 플랜지 (1b) 사이에 주름관(5)을 용접하여 고정하고, 상기 플랜지(1a)와 플랜지(1b)는 볼트 고정홀(3)에 볼트(2)를 끼워 의하여 고정된다.The conventional expansion joint is fixed by welding the corrugated pipe (5) between the upper flange (1a) and the lower flange (1b), the flange (1a) and the flange (1b) is bolted to the bolt fixing hole (3) 2) is fixed by inserting.

즉, 상기 주름관(5)은 플랜지의 연결홀(10)에 끼워진 후 그 주름관의 끝단과, 상기 주름관이 끼워진 플랜지의 연결홀(10)의 내면이 함께 용접되어 고정되고, 상기 볼트(2)로 고정된 양쪽의 플랜지(1a),(1b)가 주름관을 견고하게 지지하도록 구성된다.That is, the corrugated pipe 5 is inserted into the connection hole 10 of the flange, and the end of the corrugated pipe and the inner surface of the connection hole 10 of the flange into which the corrugated pipe is fitted are welded together and fixed, and the bolt 2 Both fixed flanges 1a, 1b are configured to firmly support the corrugated pipe.

상기와 같이 플랜지 사이에 주름관(5)을 구성함으로써 주름관(5)과 주름관의 용접부(6)에 가해지는 진동 및 충격을 주름관이 효과적으로 흡수하여 신축 이음관의 내구성이 향상된다.By constructing the corrugated pipe 5 between the flanges as described above, the corrugated pipe effectively absorbs vibrations and impacts applied to the corrugated pipe 5 and the welded portion 6 of the corrugated pipe, thereby improving durability of the expansion joint.

상기 플랜지(1)는 제조비용을 감안하여 주철을 사용하고, 상기 주름관은 유체 등에 내식성이 강한 스테인레스를 사용하는 것이 일반적이다.In view of the manufacturing cost, the flange 1 uses cast iron, and the corrugated pipe generally uses stainless steel having high corrosion resistance.

상기와 같은 구조로 신축 이음관이 구성되면 그 구조상 주름관의 용접부(6) 즉, 플랜지의 연결홀 일부와 주름관이 유체에 동시에 노출되므로 내식성이 약한 주철로 된 플랜지 부분이 쉽게 부식되어 용접부가 쉽게 떨어지는 문제점이 발생한다.When the expansion joint is composed of the above structure, the welded portion 6 of the corrugated pipe, that is, a portion of the flange connection hole and the corrugated pipe is exposed to the fluid at the same time. A problem occurs.

본 발명은 종래의 문제점을 해결하기 위하여 안출된 것으로서, 충격 및 진동을 흡수함과 동시에 유체에 용접부가 쉽게 부식되지 않는 구조의 신축 이음관을 제공하는 것을 목적으로 한다.The present invention has been made to solve the conventional problems, and an object of the present invention is to provide an expansion joint tube having a structure in which a weld is not easily corroded to a fluid while absorbing shock and vibration.

상기 목적 달성을 위하여 본 발명은 먼저, 주름관을 플랜지의 연결홀 외측 단부 부분까지 깊숙이 끼운 후, 주름관 단부와 플랜지의 연결홀의 경계 영역 부분을 용접하여 고정한다. 이어서, 플랜지 위에 플랜지의 연결홀과 내경이 같은 사이즈의 관통홀이 형성된 가스켓을 올려놓고, 티그(Tig) 용접하여 플랜지의 연결홀이 노출되지 않도록 한다.In order to achieve the above object, the present invention first inserts the corrugated pipe deeply into the outer end portion of the connecting hole of the flange, and then welds and fixes the boundary region portion of the end of the corrugated pipe and the connecting hole of the flange. Subsequently, a gasket on which a through hole of the same size as that of the flange is formed is placed on the flange, and the TIG is welded so that the connection hole of the flange is not exposed.

상기 가스켓은 주름관의 재질과 같은 재질로 된 것을 이용하는 것이 바람직하고, 플랜지의 연결홀이 이음관 내부를 흐르는 유체에 노출되지 않도록 하기 위해 가스켓의 용접시 용융액이 주름관의 용접부 위까지 커버되도록 용접하여야 한다.Preferably, the gasket is made of the same material as that of the corrugated pipe, and in order to prevent the connection hole of the flange from being exposed to the fluid flowing in the joint pipe, the gasket should be welded so that the melt is covered to the welded portion of the corrugated pipe. .

즉, 플랜지의 연결홀이 유체에 노출되지 않도록 가스켓을 개재하여 주름관을플랜지의 연결홀에 고정한다.That is, the corrugated pipe is fixed to the connection hole of the flange through the gasket so that the connection hole of the flange is not exposed to the fluid.

도 1은 일반적인 신축 이음관의 평면도이고,1 is a plan view of a typical expansion joint,

도 2는 종래 신축 이음관의 단면도이고,2 is a cross-sectional view of a conventional expansion joint,

도 3은 본 발명의 신축 이음관의 단면도이고,3 is a cross-sectional view of the expansion joint of the present invention,

도 4는 본 발명의 신축 이음관에 사용되는 주름관의 구조를 설명하기 위한 도면이고,4 is a view for explaining the structure of the corrugated pipe used in the expansion joint of the present invention,

도 5는 본 발명의 신축 이음관에 사용되는 가스켓의 구조를 나타내는 입체도면이다.5 is a three-dimensional view showing the structure of a gasket used for the expansion joint of the present invention.

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

1, 1a, 1b - 플랜지1, 1a, 1b-flange

2 - 볼트 3 - 볼트 고정홀2-bolt 3-bolt fixing hole

4, 9 - 보조홀 5 - 주름관4, 9-auxiliary hole 5-corrugated pipe

6 - 주름관 용접부(제1용접부) 7 - 가스켓6-Corrugated pipe weld (first weld) 7-Gasket

8 - 가스켓 용접부(제2용접부) 10 - 플랜지의 연결홀8-Gasket weld (Second weld) 10-Flange connection hole

11 - 가스켓의 관통홀11-through-hole of gasket

본 발명은 도 3의 구조에서 알 수 있는 바와 같이 주름관(5)의 양 단부가 각각 플랜지(1a,1b)의 연결홀(10)에 끼워지고, 상기 연결홀에 끼워진 주름관의 양 단부에 그 연결홀과 주름관을 고정하는 제1용접부(6)가 구성된 신축 이음관에 있어서,As can be seen in the structure of FIG. 3, both ends of the corrugated pipe 5 are fitted into the connecting holes 10 of the flanges 1a and 1b, respectively, and the connecting ends are connected to both ends of the corrugated pipe fitted into the connecting holes. In the expansion joint pipe composed of the first welding portion 6 for fixing the hole and the corrugated pipe,

상기 플랜지에 제2용접부(8)에 의하여 고정되는 가스켓(7)을 구비하고,A gasket (7) fixed to the flange by a second welding portion (8),

상기 제2용접부(8)는 적어도 상기 제1용접부(6)의 일부를 커버하여 상기 플랜지의 연결홀 내면이 노출되지 않도록 구성되는 것을 특징으로 한다.The second welding portion 8 is characterized in that it is configured to cover at least a portion of the first welding portion 6 so that the inner surface of the connection hole of the flange is not exposed.

특히, 상기 가스켓(7)은 상기 플랜지의 외면에 각각 고정되고, 대략 상기 연결홀(10)의 내경과 같은 사이즈의 관통홀(11)을 구비하되, 상기 관통홀부에 제2용접부가 구성된다.In particular, the gasket 7 is fixed to the outer surface of the flange, respectively, and includes a through hole 11 having a size approximately equal to the inner diameter of the connection hole 10, wherein the second welding portion is formed in the through hole.

또, 상기 주름관은 복수 겹으로 된 스테인레스 관으로 구성된다.In addition, the corrugated pipe is composed of a plurality of stainless steel pipes.

이하, 도 3내지 도 5를 참고하여 본 발명의 기술적 구성 및 작용을 구체적으로 설명한다.Hereinafter, the technical configuration and operation of the present invention will be described in detail with reference to FIGS. 3 to 5.

본 발명의 신축 이음관은 주름관의 연결홀(10)이 형성된 플랜지(1a)와 플랜지(1b)가 일정거리 만큼 이격되고 볼트 고정홀(3)에 볼트(2)를 끼워 체결된다. 상기 플랜지는 주철 등의 재료를 이용하여 구성된다.In the expansion joint of the present invention, the flange 1a and the flange 1b in which the connection hole 10 of the corrugated pipe is formed are spaced apart by a predetermined distance, and the bolt 2 is fitted into the bolt fixing hole 3. The flange is made of a material such as cast iron.

볼트(2)에 의하여 고정된 양 플랜지 사이에는 주름관(5)이 끼워지고, 그 주름관의 양 단부는 플랜지의 연결홀(10)의 내부에서 주름관 용접부(제1용접부: 6)에 의하여 용접된 상태로 고정된다.A corrugated pipe 5 is fitted between both flanges fixed by the bolt 2, and both ends of the corrugated pipe are welded by a corrugated pipe welded portion (first welded portion 6) inside the connection hole 10 of the flange. Is fixed.

상기 주름관(5)은 도 4의 구조와 같이 두께 0.3mm의 스테인레스판(5a,5b,5c,5d)을 4겹으로 하여 통형의 관을 만든 후 롤러 성형기나 액압 성형기를 이용하여 소정의 산의 개수를 갖는 주름관 형태로 만들어 줌으로써 주름관의 강도와 신축성을 높여주고, 진동 등의 충격 흡수를 충분히 할 수 있도록 구성된다.The corrugated pipe 5 is made of four layers of stainless steel plates 5a, 5b, 5c, and 5d with a thickness of 0.3 mm as shown in FIG. 4, and then a predetermined acid is formed using a roller molding machine or a hydraulic press. By making the corrugated pipe with a number, the strength and elasticity of the corrugated pipe are increased, and shock absorbing such as vibration is sufficiently configured.

한편, 상기 프랜지(1a,1b)의 외면에는 도 5 구조의 가스켓(7)이 가스켓 용접부(제2용접부: 8)에 의하여 용접된 상태로 고정된다. 상기 가스켓 용접부(8)는 가스켓(7)을 플랜지 위에 올려 놓고 플랜지와 가스켓 사이를 티그 용접함으로써 용접봉의 용융액이 플랜지의 연결홀(10)의 내면을 따라 흘러 내려 주름관의 용접부(6)를 커버할 수 있도록 용접된다. 상기 가스켓 용접부(8)는 플랜지(1)와 가스켓(7)의 고정을 견고하게 하기 위하여 가스켓의 외주 부분과 플랜지가 만나는 면에도 함께 용접되도록 구성된다.On the other hand, the gasket 7 of Fig. 5 structure is fixed to the outer surface of the flange (1a, 1b) in a welded state by the gasket welding portion (second welding portion: 8). The gasket welding part 8 puts the gasket 7 on the flange and performs a TIG welding between the flange and the gasket so that the melt of the welding rod flows along the inner surface of the connection hole 10 of the flange to cover the welding part 6 of the corrugated pipe. To be welded. The gasket weld 8 is configured to be welded together on the face where the outer circumferential portion of the gasket meets the flange in order to secure the fixing of the flange 1 and the gasket 7.

상기 가스켓(7)은 주름관을 구성하는 재질과 같은 스테인레스로 구성하여 유체에 대한 내식성이 커지도록 한다.The gasket 7 is made of stainless steel such as a material constituting the corrugated pipe to increase the corrosion resistance to the fluid.

상기 가스켓의 관통홀(11)과 플랜지의 연결홀(10)이 접하는 부분 즉, 플랜지의 연결홀(10)의 단부 모서리에는 충분한 라운드를 형성하여 가스켓 용접부(제2용접부: 8)를 형성하는 과정에서 육성된 용접봉의 용융액이 잘 흘러 내려와 플랜지의 연결홀 내면이 노출되지 않고 주름관 용접부(제1용접부: 6)와 접촉될 수 있도록 한다.A process of forming a gasket welding part (second welding part: 8) by forming a sufficient round at a portion where the through hole 11 of the gasket is in contact with the connection hole 10 of the flange, that is, the end edge of the connection hole 10 of the flange. The molten liquid of the welding rod raised in the well flows down so that the inner surface of the connecting hole of the flange is not exposed so that it can come into contact with the corrugated pipe welding part (first welding part 6).

상기 가스켓의 관통홀(11)과 플랜지의 연결홀(10)의 내경 사이즈는 같게 구성되고, 그 관통홀과 연결홀 및 주름관(5)을 통하여 유체가 흐른다. 상기와 같이 구성되는 본 발명의 신축 이음관은 외부의 관과 연결을 위하여 플랜지 및 가스켓의 몸체부에 보조홀(4),(9)이 각각 구성된다.The inner diameter of the through-hole 11 of the gasket and the connection hole 10 of the flange is configured to be the same, and the fluid flows through the through-hole, the connection hole and the corrugated pipe 5. In the expansion joint pipe of the present invention configured as described above, auxiliary holes 4 and 9 are respectively formed in the body portion of the flange and the gasket for connection with an external pipe.

상기 가스켓은 외형 사이즈를 줄이면 보조홈(9)이 없는 링 형상으로 구성할 수 있으나 외부의 관과 본 발명의 신축 이음관을 연결할 때 방해가 되지 않도록 플랜지의 외면을 가공하여 링 형상의 가스켓이 플랜지 외면으로 돌출되지 않도록 구성하여야 한다.The gasket may be configured in a ring shape without the auxiliary groove 9 when the outer size is reduced, but the ring-shaped gasket is flanged by processing the outer surface of the flange so as not to interfere when connecting the outer pipe and the expansion joint of the present invention. It shall be constructed so that it does not protrude to the outside.

본 발명의 신축 이음관은 본 발명의 상세한 설명에 예시된 구조에 한정되지 않고 본 발명의 목적의 범위를 이탈하지 않는 범위 내에서 다양하게 구조의 변형이 가능함은 자명하다.It is apparent that the expansion joint of the present invention is not limited to the structure illustrated in the detailed description of the present invention, and the structure can be modified in various ways without departing from the scope of the object of the present invention.

본 발명의 신축 이음관은 플랜지(1a,1b) 사이에 스테인레스로 된 주름관(5)이 제1용접부(6)에 의하여 고정되고, 상기 플랜지 위에 제2용접부(8)에 의하여 고정되는 스테인레스 재질의 가스켓(7)을 구비하되, 상기 제2용접부(8)는 플랜지와 가스켓 사이를 티그 용접하는 방법에 의하여 형성됨으로써, 용접봉의 용융액이 플랜지의 연결홀(10)의 내면을 따라 흘러 내려와 제2용접부(8)가 제1용접부(6)를 커버할 수 있도록 구성되는 것을 특징으로 한다.The expansion joint of the present invention is made of a stainless steel corrugated pipe (5) made of stainless between the flange (1a, 1b) is fixed by the first welding portion 6, the second welding portion (8) on the flange And a gasket (7), wherein the second welding portion (8) is formed by a method of tig welding between the flange and the gasket, so that the melt of the welding rod flows down along the inner surface of the connection hole (10) of the flange. (8) is characterized in that it is configured to cover the first weld (6).

즉, 가스켓과 주름관을 유체에 내식성이 강한 스테인레스로 하고, 상기 제1용접부와 고정된 플랜지 면이 유체에 노출되지 않도록 제2용접부에 의하여 커버되는 구조로 함으로써, 충격 및 진동을 흡수함과 동시에 유체에 부식되지 않는 신축 이음관을 제공하는 효과를 얻는다.That is, the gasket and the corrugated pipe are made of stainless steel with high corrosion resistance to the fluid, and the first welded part and the flange surface fixed to the second welded part so as not to be exposed to the fluid, thereby absorbing shock and vibration, and at the same time the fluid Gain the effect of providing expansion joints that do not corrode.

또, 가스켓을 개재하여 내식성에 약한 플랜지의 외면이 유체에 노출되지 않도록 구성함으로써, 품질향상과 아울러 제조비용이 절감되는 신축 이음관을 재공하는 효과를 얻을 수 있다.In addition, by configuring the outer surface of the flange which is weak in corrosion resistance through the gasket so as not to be exposed to the fluid, it is possible to obtain an effect of providing a expansion pipe that improves quality and reduces manufacturing costs.

Claims (3)

주름관(5)의 양 단부가 각각 플랜지(1a,1b)의 연결홀(10)에 끼워지고, 상기 연결홀에 끼워진 주름관의 양 단부에 그 연결홀과 주름관을 고정하는 제1용접부(6)가 구성된 신축 이음관에 있어서,Both ends of the corrugated pipe 5 are fitted into the connecting holes 10 of the flanges 1a and 1b, respectively, and the first welding portion 6 fixing the connecting holes and the corrugated pipe to both ends of the corrugated pipe fitted into the connecting holes. In the constructed expansion joint, 상기 플랜지에 제2용접부(8)에 의하여 고정되는 가스켓(7)을 구비하고,A gasket (7) fixed to the flange by a second welding portion (8), 상기 제2용접부(8)는 적어도 상기 제1용접부(6)의 일부를 커버하여 상기 플랜지의 연결홀 내면이 노출되지 않도록 구성되는 것을 특징으로 하는 신축 이음관.The second welding part 8 covers at least a part of the first welding part 6 so that the inner surface of the connecting hole of the flange is not exposed. 제1항에 있어서,The method of claim 1, 상기 가스켓(7)은 상기 플랜지의 외면에 각각 고정되고, 대략 상기 연결홀(10)의 내경과 같은 사이즈의 관통홀(11)을 구비하되, 상기 관통홀부에 제2용접부가 구성되는 것을 특징으로 하는 신축 이음관.The gasket 7 is fixed to the outer surface of the flange, respectively, and has a through hole 11 of the same size as the inner diameter of the connection hole 10, characterized in that the second welding portion is formed in the through hole portion Expansion joint. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 주름관과 상기 가스켓은 스테인레스 재질로 이루어지고, 상기 주름관은 복수겹으로 구성되는 것을 특징으로 하는 신축 이음관.The corrugated pipe and the gasket are made of a stainless material, the corrugated pipe is characterized in that the expansion pipe is composed of a plurality of layers.
KR10-2001-0079024A 2001-12-13 2001-12-13 connection duct KR100454077B1 (en)

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CN108758134A (en) * 2017-11-29 2018-11-06 浙江安可环保科技有限公司 Scalable connection valve and the active carbon adsorption equipment for including the scalable connection valve
CN109954760A (en) * 2017-12-25 2019-07-02 航天海鹰(哈尔滨)钛业有限公司 The manufacturing process and bellows stretching tool of titanium alloy V-shaped bellows
US20200370681A1 (en) * 2018-12-20 2020-11-26 The Boeing Company Conduits for transporting fluids and methods of fabricating the same
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CN102410423A (en) * 2011-08-15 2012-04-11 秦皇岛北方管业有限公司 Fluoroplastic metal pipeline compensator with corrosion resistance and preparation method thereof
CN102410423B (en) * 2011-08-15 2013-05-08 秦皇岛北方管业有限公司 Fluoroplastic metal pipeline compensator with corrosion resistance and preparation method thereof
CN108758134A (en) * 2017-11-29 2018-11-06 浙江安可环保科技有限公司 Scalable connection valve and the active carbon adsorption equipment for including the scalable connection valve
CN109954760A (en) * 2017-12-25 2019-07-02 航天海鹰(哈尔滨)钛业有限公司 The manufacturing process and bellows stretching tool of titanium alloy V-shaped bellows
US20200370681A1 (en) * 2018-12-20 2020-11-26 The Boeing Company Conduits for transporting fluids and methods of fabricating the same
US11835156B2 (en) * 2018-12-20 2023-12-05 The Boeing Company Conduits for transporting fluids and methods of fabricating the same
CN112253776A (en) * 2020-10-23 2021-01-22 安徽铜陵科力阀门有限责任公司 Valve with filtering function
CN112253776B (en) * 2020-10-23 2024-04-12 安徽科力阀业有限公司 Valve with filtering function

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