KR20070087926A - Expansion/contraction joint for pre insulated piping - Google Patents

Expansion/contraction joint for pre insulated piping Download PDF

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Publication number
KR20070087926A
KR20070087926A KR1020060012136A KR20060012136A KR20070087926A KR 20070087926 A KR20070087926 A KR 20070087926A KR 1020060012136 A KR1020060012136 A KR 1020060012136A KR 20060012136 A KR20060012136 A KR 20060012136A KR 20070087926 A KR20070087926 A KR 20070087926A
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South Korea
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pipe
expansion
joint
expansion joint
tube
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KR1020060012136A
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Korean (ko)
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KR100825377B1 (en
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유승철
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유창밸브 주식회사
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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
    • 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
    • F16L51/025—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with several 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
    • F16L51/028—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with the expansion or contraction of each corrugation being limited

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

Abstract

A double heat insulating pipe having an expansion/contraction joint is provided to increase heat insulating effect by vacuumizing the space formed between an inner pipe and an outer pipe, and to allow a packing material to be smoothly injected through a packing cylinder. A double heat insulating pipe having an expansion/contraction joint includes an outer pipe(110), an inner pipe(120), an expansion/contraction joint pipe(130), a first corrugated pipe(140), and a second corrugated pipe(150). The inner pipe is arranged in a horizontal direction within the outer pipe. The expansion/contraction joint pipe has one end extended to form a pipe joint portion(132) and disconnected/connected in the inner pipe, and the other end having a moving distance limited by a stopper(134) arranged between the expansion/contraction joint pipe and the inner pipe. The first corrugated pipe has one end connected to an end of the inner pipe such that the length of the first corrugated pipe increases, and the other end connected to the expansion/contraction joint pipe so as to form an independent space between the first corrugated pipe and the expansion/contraction joint pipe. The second corrugated pipe is arranged on the outer pipe such that the second corrugated pipe is flexibly movable when the first corrugated pipe flexibly moves.

Description

단열이중관의 신축이음조인트{Expansion/contraction joint for pre insulated piping}Expansion / joint joint for pre insulated piping

도 1은 종래 신축이음조인트가 구현된 단열이중관의 요부 발췌단면도이고, 1 is an essential cross-sectional view of the main portion of the insulating double pipe is a conventional expansion joint is implemented,

도 2는 본 발명 신축이음조인트가 구현된 단열이중관의 외부사시도이고,Figure 2 is an external perspective view of the insulating double pipe is implemented the expansion joint of the present invention,

도 3은 본 발명 신축이음조인트가 구현된 단열이중관의 내관 사시도이고,Figure 3 is a perspective view of the inner tube of the insulating double pipe is implemented the expansion joint of the present invention,

도 4는 본 발명 신축이음조인트가 구현된 단열이중관의 요부발췌단면도이다.Figure 4 is an excerpt sectional view of the main portion of the adiabatic double tube is implemented the expansion joint of the present invention.

※ 도면의 주요 부분에 대한 부호의 설명※ Explanation of codes for main parts of drawing

110: 외관, 120:내관, 130: 신축이음관, 140: 제1주름부, 150 : 제2주름부,110: appearance, 120: inner tube, 130: expansion pipe, 140: the first wrinkle portion, 150: the second wrinkle portion,

160: 패킹실린더, 170: 유체누설 확인/배출구, 180:투입구. 160: packing cylinder, 170: fluid leakage check / outlet, 180: inlet.

본 발명은 단열이중관의 신축이음조인트에 관한 것으로, 특히, 내관의 신축이동에 따라 외관도 신축되도록 한 단열 이중관의 신축이음관에 관한 것이다. The present invention relates to expansion joints of an insulation double pipe, and more particularly, to an expansion joint of an insulation double pipe to expand and contract the appearance according to the expansion and movement of the inner pipe.

일반적으로 열병합발전소 및 각종 산업플랜트에서 중온수, 스팀등 고온의 유체를 사용처까지 장거리 수송을 하기 위해서는 지하배관을 설치하고 있으나, 외부 온도 및 수송중인 유체의 자체온도 변화로 배관의 선 팽창계수에 의해 배관의 신축 이 발생하게 된다.In general, underground piping is installed for long distance transportation of high temperature fluid such as heavy temperature water and steam in cogeneration power plants and various industrial plants.However, due to the linear expansion coefficient of the pipe due to the change in the external temperature and the temperature of the fluid being transported. Pipe stretching occurs.

장거리 배관시 단열 이중 배관의 구성은 내부배관 보호용 외부배관과 유체를 송기하는 내부배관으로 구성되며 내부배관은 유체 온도차에 의하여 배관이 수축 신축을 흡수할 수 있는 신축이음관이 부착된다. 이러한 신축이음관은 내부배관의 신축 흡수량을 흡수하기 위하여 다수 연결되고, 외관과 내관사이 공간에는 보온재인 단열재를 충진하고 단열재 사이에는 조인트 누설시 누설을 감지할 수 있는 누수감지선을 삽입하게 된다.In the case of long distance piping, the double insulation pipe consists of the outer pipe for protecting the inner pipe and the inner pipe for sending the fluid. The inner pipe is equipped with the expansion pipe which can absorb the shrinkage by the fluid temperature difference. These expansion joints are connected in order to absorb the amount of expansion and absorption of the inner pipe, the space between the outer and the inner tube is filled with insulation, which is a thermal insulation material, and the leakage detection wire that can detect the leakage in the joint leakage between the insulation.

종래로 부터 내외관의 이중배관을 구성하고, 그 사이의 공간상에 단열재를 충진하여 내외부간의 단열을 기하며, 이와같은 내외관사이에 신축이음수단을 강구함에 있어 그 신축부의 실링부분을 처리하기 위한 패킹실린더를 구현한 것이 등록제260567호 실용신안등으로 알려져 있었다.Conventionally, it constitutes a double pipe of inner and outer tubes, fills the insulating material in the space therebetween to insulate the inside and the outside, and in order to obtain the expansion joint means between the inside and the outside packing for processing the sealing part of the expansion part. The implementation of the cylinder was known as Utility Model No. 260567.

상기 신축이음조인트는 조인트챔버 표면에서 발생되는 열을 차단하기 위하여 외통과 조인트 챔버사이에 전고정판과 후고정판을 고정시키고 그 사이로 단열재를 진공 공간 형성없이 단열재를 주입하고 단열재 사이로 누수감지선을 설치하여 신축 조인트 누수유무 만을 감지하는 것이며, 단열재를 주입하기 위한 단열재 주입구를 내외관을 괸통하여 설치하고, 누수감지선도 설치하여 슬라이드면으로 누출된 유체를 단열재 충진공간상에서 감지한 뒤 외관의 패킹실린더를 통하여 패킹주입볼트를 통하여 파우다패킹을 주입하여 누수를 차단할 수 있는 구조로서 지상 혹은 지하에서 배관 연결부인 조인트의 외관을 단열재로 에워싸서 조인트 내부에 흐르는 고온, 고압의 유체의 열이 외부로 방출되지 않게 함은 물론 매설배관 경우 토질의 온도 등으로 조인트 단열보호 외부재의 표면 접촉시 온도차에 의한 열손실 방지와 지상으로 방출 될수 있는 열 발생을 차단하고, 단열재 충진공간에 누수감지선을 설치한 매립형 보온카바 슬라이드 조인트이다.The expansion joint is fixed between the outer cylinder and the joint chamber in order to block the heat generated from the joint chamber surface between the fixing plate and the rear fixing plate between the insulator without forming a vacuum space between the insulation and installing a leak detection line between the insulation It only detects the expansion joint leakage and installs the insulator inlet for injecting the insulator through the inner and outer pipes, and also installs the leak detector wire to detect the fluid leaked on the slide surface in the insulator filling space and then packing it through the packing cylinder of the exterior. It is a structure that can block the leakage by injecting powder packing through the injection bolt, and surround the exterior of the joint, which is the pipe connection on the ground or underground, with insulation to prevent the heat of the high-temperature and high-pressure fluid flowing inside the joint from being released to the outside. Of course, in the case of buried piping, Block the heat that can be released to prevent heat loss and ground by STE insulating protective outer surface material temperature during contact and buried insulation installing the leak detection line in the insulation space filling cover a slide joint.

또한, 본 발명 출원인에 의하여 출원되어 있는 단열이중관의 신축이음조인트가 첨부 도면 도 1에 도시되어 있다.In addition, the expansion joint of the thermal insulation double pipe filed by the applicant of the present invention is shown in the accompanying drawings.

이 도면에서 도시하는 단열이중관의 신축이음조인트는 외관과; 상기 외관 내측에 수평 설치되는 내관과; 상기 내관 내측에서 일단부는 타측 내관에, 타단부는 상기 내관과의 사이에 스토퍼로서 이동길이가 제한됨과 아울러 슬라이드되도록 수평 설치되는 신축이음관과; 상기 내관의 단부에 일단부가 연결되어 길이가 확장됨과 아울러 타단부는 상기 신축이음관과 밀폐되도록 연결되어 상기 신축이음관과의 사이에 독립 공간을 형성한 제 1주름관으로 이루어지는 단열이중관이다. The expansion joint of the insulation double tube shown in this figure has an appearance; An inner tube horizontally installed inside the exterior; An expansion joint pipe installed horizontally such that one end of the inner tube is in the other inner tube, and the other end of the inner tube is slid with a stopper as the stopper between the inner tube and the slide; One end is connected to the end of the inner tube to extend the length and the other end is a heat insulation double tube consisting of a first corrugated pipe connected to the expansion joint and sealed to form an independent space between the expansion joint.

그러나 이와 같은 복합배관의 조인트구조 역시 상기한 신축이음관은 내관에 연결되어 있고 그 외측에 단열재를 충진한 외관을 구성하는 바, 이러한 경우 내관과 신축이음관의 신축 작동이 발생하면 단지 신축이음부이에서 이를 흡수하는 것에 불과하므로 신축이음관의 신축력이 떨어지는 등의 요인으로 외관과 연결된 누설유체확인구라든가 패킹실린더등의 연결부에 충격을 주는 일이 있었다. However, the joint structure of such a composite pipe also includes the expansion joint pipe is connected to the inner pipe and the outer shell filled with the heat insulating material. In this case, the expansion joint of the inner pipe and the expansion pipe pipe only causes expansion joints. As it absorbs this from, the elasticity of the expansion joints is lowered and the impact on the connection part such as the leakage fluid checking port or the packing cylinder, etc., connected to the exterior was sometimes caused.

따라서 내,외관으로 단열처리하고, 진공을 기하며, 누설유체의 확인 및 배출이 가능한 단열 이중관에 있어 신축이음관의 신축작동에 대응하여 같이 신축이동되는 신축이음구조를 갖는 외관구조가 필요로 되어 왔다.Therefore, it is necessary to have an external structure with expansion and contraction structure that can be expanded and moved together in response to expansion and contraction operation of expansion joint pipe in the insulation double pipe that can insulate the inside and the exterior, apply vacuum, and check and discharge leakage fluid. come.

본 발명은 상기한 종래 선출원된 단열이중관의 신축이음조인트가 갖는 문제점을 개선하여 내관의 신축 이동시 외관측의 신축 변동도 가능하게 하고자 하는 데에 주된 목적이 있다.The present invention has a main object to improve the problem of the expansion joint joint of the conventionally filed insulated double pipes as described above and also to enable the expansion and contraction of the exterior side when the inner pipe is moved.

본 발명은 상기와 같은 목적을 달성함과 아울러 종래 단열 이중관 방식의 신축조인트의 누수,누열 및 초기 시공성과 사후관리 문제점을 단열재외에 진공을 통하여 보온효과를 증대 시키고, 신축 조인트 누설시 배관 시스템의 영향없이 간편히 유지보수할 수 있는 단열 이중관 신축이음구조를 제공하는 데에 그 목적이 있다.The present invention achieves the above-mentioned objects and increases the thermal insulation effect through vacuum in addition to the leakage, leakage and initial construction and after-care problems of the conventional thermal insulation double pipe type expansion joint, in addition to the insulation, the effect of the piping system in the case of expansion joint leakage Its purpose is to provide a double-walled expansion joint structure that can be easily maintained without maintenance.

본 발명은 단열 이중관의 신축이음 장치를 구현함에 있어 외관과는 별도로 신축이음부에 육안 누수확인 공간을 형성하여 내관으로부터 발생된 누수상태를 외관 외부에서 파악 가능하고, 이 누수공간은 단열/진공공간에 영향을 주지않도록 하는 단열 이중관 신축이음 조인트를 제공하는데에도 그 목적이 있다.In the present invention, in the implementation of the expansion joint device of the double-insulated double pipe, the visual leakage check space formed in the expansion joint separately formed from the external appearance can grasp the leak state generated from the inner tube from the outside, the leak space is a heat insulation / vacuum space It is also an object to provide an insulating double pipe expansion joint that does not affect the joint.

본 발명은 단열 이중관의 신축이음 조인트에 분기관이 설치가능하게 형성되어 있어 분기관의 시공이 간편하게 이루어지며, 사후 누수방지 조치에 있어 해당 부분의 외관 분해 없이 간편하게 보수유지 할 수 있는 단열 이중관의 신축이음 조인트를 제공하는 데에도 그 목적이 있다.According to the present invention, the branch pipe is formed in the expansion joint of the insulating double pipe so that the branch pipe can be easily installed, and the expansion of the insulating double pipe can be easily maintained without disassembling the appearance of the corresponding part in the post leak prevention measures. The purpose is to provide a joint.

본 발명은 도로지면에 위치하는 누수확인구가 일정한 압력 도달시 배수처리와 우수 및 이물질이 진동등에 의하여 유입되지 않고 누설유체가 자동 배기됨은 물론 수동개페도 가능한 단열 이중관의 신축이음 장치를 제공하는 데에 그 목적이 있다.The present invention is to provide a expansion joint device of a double-insulated double pipe that can be leaked automatically as well as manual drainage without drainage treatment and rainwater and foreign matter is not introduced by the vibration, etc. when the leak confirmation sphere located on the road surface reaches a certain pressure. Has its purpose.

상기한 목적을 달성하기 위한 본 발명의 신축이음조인트를 갖는 단열이중관은,Insulated double pipe having a stretch joint of the present invention for achieving the above object,

외관과; 상기 외관 내측에 수평 설치되는 내관과; 상기 내관 내측에서 일단부는 타측 내관에, 타단부는 상기 내관과의 사이에 스토퍼로서 이동길이가 제한됨과 아울러 슬라이드되도록 수평 설치되는 신축이음관과; 상기 내관의 단부에 일단부가 연결되어 길이가 확장됨과 아울러 타단부는 상기 신축이음관과 밀폐되도록 연결되어 상기 신축이음관과의 사이에 독립 공간을 형성한 제 1주름관;및 상기 제1주름관의 신축이동시 함께 신축 이동되도록 외관에 형성되는 제2주름관을 포함하는 신축이음조인트를 갖는 단열이중관에 의하여 달성된다. Appearance; An inner tube horizontally installed inside the exterior; An expansion joint pipe installed horizontally such that one end of the inner tube is in the other inner tube, and the other end of the inner tube is slid with a stopper as the stopper between the inner tube and the slide; A first corrugated pipe having one end connected to an end portion of the inner tube and extending in length, and the other end connected to be sealed to the expansion joint pipe to form an independent space between the expansion joint pipe; and an extension of the first wrinkle pipe It is achieved by an adiabatic double tube having a telescopic joint including a second pleated tube that is formed on the exterior so as to telescopically move together during movement.

상기한 목적을 달성하기 위한 본 발명의 신축이음조인트를 갖는 단열이중관은 누설 유체가 모이도록 독립 공간을 밀폐/차단하기 위하여 상기 내관에 설치되는 패킹실린더를 더 포함함이 바람직하다.Insulating double tube having a stretch joint of the present invention for achieving the above object is preferably further comprises a packing cylinder installed in the inner tube for sealing / blocking the independent space to collect the leakage fluid.

상기한 목적을 달성하기 위한 본 발명의 신축이음조인트를 갖는 단열이중관은 외관과 내관사이의 단열재 충진공간에 소정압력의 진공을 가하여 보온효과를 높이는 특징을 갖는다.Insulating double pipe having a stretch joint of the present invention for achieving the above object has the feature of increasing the warming effect by applying a vacuum of a predetermined pressure in the insulating material filling space between the exterior and the inner tube.

상기한 목적을 달성하기 위한 본 발명의 신축이음조인트를 갖는 단열이중관은 단열이중관 신축이음 조인트의 상기한 독립공간에서 외관측으로 신축이음관의 신축작동시 발생되는 누설유체를 확인/배출하기 위한 누설유체 확인/배출구를 더 구비함이 바람직하다.Insulation double pipe having a expansion joint of the present invention for achieving the above object is a leakage fluid for identifying / discharging the leakage fluid generated during the expansion operation of the expansion joint pipe to the exterior side in the above-mentioned independent space of the insulation double pipe expansion joint joint It is preferable to further provide a confirmation / discharge port.

상기한 목적을 달성하기 위한 본 발명의 신축이음조인트를 갖는 단열이중관 의 상기 패킹실린더는 내관에만 설치되고 외관에는 별개의 투입구와 캡을 형성함이 바람직하다.In order to achieve the above object, the packing cylinder of the insulating double pipe having the expansion joint of the present invention is preferably installed only in the inner pipe and forms a separate inlet and a cap on the exterior.

본 발명 단열 이중관의 신축이음 조인트는 유체누설시 육안식별이 가능하고, 간편하게 누수를 차단할 수 있으며, 분기관 연결이 간편해지는 특징이 있다.The expansion joint of the heat insulation double pipe of the present invention can be visually identified when fluid is leaked, can easily block leakage, and has a characteristic of simplifying branch pipe connection.

이하 본 발명의 바람직한 실시예를 첨부된 도면들에 의거하여 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

첨부 도면중 도 2는 본 발명 신축이음조인트가 구현된 단열이중관의 외부 발췌 사시도이고, 도 3은 본 발명 신축이음조인트가 구현된 단열이중관의 내관 발췌사시도이고, 도 4는 본 발명 신축이음조인트가 구현된 단열이중관의 단면도이다. In the accompanying drawings, Figure 2 is an external excerpt perspective view of the double-insulated double pipe is implemented in the present invention the expansion joint joint, Figure 3 is an exploded perspective view of the inner tube of the double-insulated double pipe joint implemented in the present invention, Figure 4 is a stretch joint joint of the present invention Sectional view of the insulation double tube implemented.

상기 도면들에 따르는 본 발명 신축이음조인트를 갖는 단열이중관은, Insulated double tube having a stretch joint of the present invention according to the drawings,

외관(110)과, 상기 외관(110)내측에 수평 설치되는 내관(120)과, 신축이음관(130)으로 이루어진다. It consists of an exterior 110, an inner tube 120 horizontally installed inside the exterior 110, and an expansion joint tube 130.

상기 신축이음관(130)은 일단부가 연장되어 배관 연결부(132)를 이룸과 동시에 상기 내관(120)에서 밀폐되도록 차단/연결되고, 타단부는 상기 내관(120)과의 사이에 스토퍼(134)로서 이동길이가 제한됨과 아울러 슬라이드되도록 수평 설치된다.One end of the expansion joint pipe 130 extends and is connected to the pipe connecting portion 132 and at the same time shut off / connected to be sealed in the inner pipe 120, the other end of the stopper 134 between the inner pipe 120 As the movement length is limited as well as horizontally installed to slide.

상기 내관(120)에는 내관(120)의 단부에 일단부가 연결되어 길이가 확장됨과 아울러 타단부가 상기 신축이음관(130)과 밀폐되도록 연결되어 상기 신축이음관(130)과의 사이에 독립 공간(b)을 형성하도록 설치된다.One end portion of the inner tube 120 is connected to an end of the inner tube 120 to extend its length, and the other end thereof is connected to the expansion joint 130 to be hermetically sealed, so that the expansion pipe 130 has an independent space therebetween. (b) is provided.

상기 외관(110)에는 상기 제1주름관(140)의 신축이동시 함께 신축 이동되도 록 외관(110)에 제2주름관(150)을 설치한다.The exterior 110 is provided with a second wrinkle tube 150 in the exterior 110 to be stretched and moved together with the expansion and contraction of the first wrinkle tube 140.

이 제2주름부(150)에는 그 외측으로 커버부(152)를 더 구비하며, 상기 커버부(152)는 상기 제2주름부(150)외측으로 스토퍼(154)를 형성하여 상기 커버부(152)의 신축이동 거리를 제한한다.The second wrinkle part 150 further includes a cover part 152 on the outside thereof, and the cover part 152 forms a stopper 154 outside the second wrinkle part 150 to form the cover part ( Limit the telescopic travel distance of 152).

상기 외관(110)에는 누설 유체가 모이는 독립 공간(b)을 밀폐/차단하기 위하여 상기 내관(120)에 설치된 패킹실린더(160)외에 패킹물질을 주입하기 위한 주입구(180)를 형성하고 있으며, 독립공간(b)에서 내관(120)을 지나 외관(110)측으로 관통되는 누설유체 확인/배출구(170)도 구비하여서 된다.The exterior 110 is formed with an injection hole 180 for injecting a packing material in addition to the packing cylinder 160 installed in the inner tube 120 to seal / block the independent space (b) in which the leakage fluid is collected. In the space (b), the leakage fluid checking / exhaust port 170 penetrating through the inner tube 120 and toward the outer side 110 may also be provided.

상기 외관(110)에 형성된 주입구(180)를 통하여 그 직하방의 상기 내관(120)의 패킹실린더(160)에 파우다패킹을 주입하여 신축이동시 틈 발생을 실링하면서 신축이음관(130)의 슬라이드 이동을 안내하게 된다.Injecting the powder packing into the packing cylinder 160 of the inner tube 120 directly below the injection hole 180 formed in the exterior 110 to seal the occurrence of the gap during expansion and movement of the expansion joint 130 You will be guided.

이러한 신축이음관(130)의 실링으로 인하여 내관(120)과 신축이음관(130)의 외측 사이로 소정의 독립적인 공간(b)을 형성하여 신축이음관(130)내 누설유체의 일시 체류가 가능하게 되고, 이를 누설유체 확인/배출구(170)를 통하여 배출하게 된다.Due to the sealing of the expansion joint 130, a predetermined independent space (b) is formed between the inner tube 120 and the outer side of the expansion joint 130 to temporarily stay in the leakage fluid in the expansion joint 130 And, it is discharged through the leakage fluid check / discharge port (170).

이와 같은 본 발명 단열이중관의 신축이음 조인트장치의 신축작용을 첨부 도면 도 4에 의거 살펴 보면 다음과 같다.The expansion and contraction action of the expansion joint joint device of the present invention double insulation tube as described above is as follows based on FIG.

본 발명 단열이중관의 신축이음 조인트장치는 신축이음관(130)에 형성된 제1주름부(140)가 양측 배관을 통하여 직선 배관의 신축작용이 일어나 제1주름부(140)가 신축적으로 대응하여 적당한 완충작용을 함과 동시에 본 발명의 단열이중관의 외관(110)측의 제2주름부(150)역시 동시에 신축작용이 일어나 단열이중관이라 할지라도 충분한 신축작용을 갖게 되므로 종래 단열이중관에서 내관만의 신축작용 구조에 따라 내관에서 외관으로 수직 연결된 누설유체 확인/배출구(170) 및 패킹실린더(160)등의 위치가 변경되거나 균열되는 문제점을 개선하게 되었다.In the present invention, the expansion joint joint device of the double-duplex pipe, the first wrinkle portion 140 formed in the expansion joint pipe 130 is a stretch action of the straight pipe through both sides of the pipe so that the first wrinkle portion 140 elastically At the same time, the second wrinkles 150 on the exterior 110 side of the heat insulation double pipe of the present invention also have a proper cushioning action, so that the elastic action is sufficient even if the heat insulation double pipe has a sufficient elasticity. According to the elastic structure, the problem of changing or cracking the leakage fluid checking / exhaust port 170 and the packing cylinder 160 vertically connected from the inner tube to the outside was improved.

본 발명 단열이중관의 신축이음 조인트는 여러가지 외부적 조건 즉 하절기 고열에 의하여 내관이 늘어나거나 하는 변화들에 따라 내관이 신축되면 제1,제2주름부(140,150)가 수축되어 신축이음관(130)을 이동시킴에 원활함을 주게되었다.When the inner tube is stretched according to various external conditions, that is, the inner tube is stretched or changed due to various external conditions, that is, the summer heat, the first and second wrinkle parts 140 and 150 are contracted to expand and contract the joint 130 of the present invention. It gave smoothness to the movement.

아울러 유체를 제거함과 동시에 외관(110)측의 투입구를 통하여 그 하방의 패킹실린더(160)에 파우더패킹을 주입함으로써 상술한 공간(b)의 일부를 차단하는 패킹부분을 보강하여 밀폐력을 유지하게 되는 것이다.In addition, by removing the fluid and injecting powder packing into the packing cylinder 160 of the lower portion through the inlet of the outer side 110 to reinforce the packing portion to block a part of the above-mentioned space (b) to maintain the sealing force will be.

특히, 종래에는 외관(110)과 내관(120)사이를 하나의 수직구조로 패킹실린더(160)를 구성하여 외관(110)측에서 파우더패킹을 투입하도록 되어 있었으나 내관(120)의 신축이동에 따른 진동에 의하여 그 수직상태가 유지되기 어려워 외관(110)측에 커버(182)로서 개폐되는 투입구(180)를 소정위치에 구성하게 되는 바, 이러한 구조들이 내관(120)의 신축이동에 전혀 영향받지 않는 것이다.Particularly, in the related art, the packing cylinder 160 was formed in one vertical structure between the exterior 110 and the inner tube 120 to inject powder packing from the exterior 110, but according to the expansion and contraction of the inner tube 120. It is difficult to maintain the vertical state due to the vibration to configure the inlet 180 to be opened and closed as the cover 182 on the exterior 110 side at a predetermined position, these structures are not affected by the expansion and contraction of the inner tube 120 at all Will not.

이상 설명한 바와 같이 본 발명은 종래 제안된 단열 이중관의 구조에서 분기배관이 이루어지는 신축이음관의 신축작동시 외관측의 변동이 가능하게 하여 내관의 신축이동과 함께 외관도 신축이동 가능하게 하여 내관 신축작동시 외관의 고정에 따른 누설유체 확인/배출구등에 가해지는 문제점을 개선하여 단열이중관의 신축 작동 기능을 향상시키는 효과를 갖는다.As described above, the present invention enables the fluctuation of the external side during expansion and contraction operation of the expansion joints in which the branched pipe is made in the structure of the conventionally proposed heat insulation double pipe to expand and move the appearance as well as the expansion and contraction of the inner tube. It has the effect of improving the telescopic working function of the double insulation tube by improving the problems applied to the leakage fluid check / outlet according to the fixing of the exterior.

본 발명은 이러한 내.외관의 신축작동이 이루어짐과 아울러 내,외관사이의 단열재 충진외에 소정 기압의 진공도 가능하게 하고, 패킹실린더를 통한 패킹물질의 주입도 원활하게 하여 내,외관 신축이동에 따른 단열이중관의 기존 기능도 가능하도록 보장하게 되는 효과도 갖는다.The present invention allows the internal and external expansion and contraction of the interior and exterior as well as the filling of the insulating material between the interior and exterior, enabling the vacuum of a predetermined air pressure, and also facilitates the injection of the packing material through the packing cylinder to insulate the internal and external stretching movements. It also has the effect of ensuring the existing function of the double tube.

Claims (5)

신축이음조인트를 갖는 단열이중관에 있어서,In an insulating double pipe having a expansion joint, 외관(110);Appearance 110; 상기 외관(110)내측에 수평 설치되는 내관(120);An inner tube 120 horizontally installed inside the outer shell 110; 일단부는 연장되어 배관 연결부(132)를 이룸과 동시에 상기 내관(120)에서 밀폐되도록 차단/연결되고, 타단부는 상기 내관(120)과의 사이에 스토퍼(134)로서 이동길이가 제한됨과 아울러 슬라이드되도록 수평 설치되는 신축이음관(130);One end is extended and blocked / connected to seal the inner pipe 120 at the same time as the pipe connecting portion 132, the other end slides as a stopper 134 between the inner pipe 120 and the slide Expansion joint pipe 130 is installed to be horizontal; 상기 내관(120)의 단부에 일단부가 연결되어 길이가 확장됨과 아울러 타단부는 상기 신축이음관(130)과 밀폐되도록 연결되어 상기 신축이음관(130)과의 사이에 독립 공간(b)을 형성한 제 1주름관(140);및One end is connected to an end of the inner tube 120 to extend its length, and the other end is connected to the expansion joint 130 to be hermetically sealed to form an independent space b between the expansion joint 130 and the expansion joint 130. One first corrugated pipe 140; and 상기 제1주름관(140)의 신축이동시 함께 신축 이동되도록 외관(110)에 형성되는 제2주름관(150)을 포함하는 신축이음조인트를 갖는 단열이중관. An insulating double pipe having a stretch joint including a second wrinkle tube 150 formed on the exterior 110 to be stretched together when the first wrinkle tube 140 is moved. 제 1항에 있어서,The method of claim 1, 누설 유체가 모이도록 독립 공간(b)을 밀폐/차단하기 위하여 상기 내관(120)에 설치되는 패킹실린더(160)를 더 포함하는 신축이음조인트를 갖는 단열이중관.An insulated double pipe having a flexible joint further comprising a packing cylinder (160) installed in the inner tube (120) to seal / block the independent space (b) to collect the leakage fluid. 제 2항에 있어서,The method of claim 2, 상기 독립공간(b)에서 내관(120)을 지나 외관(110)측으로 관통되는 누설유체 확인/배출구(170)를 더 포함하는 신축이음조인트를 갖는 단열이중관.Insulating double tube having a expansion joint joint further comprises a leaking fluid check / discharge port 170 penetrates through the inner tube (120) to the outer side 110 in the independent space (b). 제 1항에 있어서,The method of claim 1, 상기 외관(110)의 제2주름부(150)에는 그 외측으로 커버부(152)를 더 구비하는 것을 특징으로 하는 신축이음조인트를 갖는 단열이중관.The second pleated portion 150 of the exterior (110) is a heat insulation double pipe having a stretch joint, characterized in that it further comprises a cover portion (152) to the outside. 제 4항에 있어서,The method of claim 4, wherein 상기 커버부(152)는, The cover part 152 is, 상기 제2주름부(150)외측으로 스토퍼(154)를 형성하여 상기 커버부(152)의 신축이동 거리를 제한하는 것을 특징으로 하는 신축이음조인트를 갖는 단열이중관 장치.Insulating double tube device having a stretch joint, characterized in that the stopper 154 to the outer side of the second wrinkle portion 150 to limit the stretch movement distance of the cover portion 152.
KR1020060012136A 2006-02-08 2006-02-08 dual pipe for insulating KR100825377B1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102537581A (en) * 2011-12-27 2012-07-04 大连益多管道有限公司 Full-fixation-type bi-directional outer pipe metal corrugated compensator
CN102537582A (en) * 2011-12-27 2012-07-04 大连益多管道有限公司 Full-fixation-type combined hydrophobic-type bi-directional outer pipe corrugated compensator
CN103851298A (en) * 2014-03-19 2014-06-11 江苏亚星波纹管有限公司 Heat-preserving waterproof fully-buried expansion joint
CN103883833A (en) * 2014-03-17 2014-06-25 江苏曙光压力容器有限公司 Jacketed type corrugated pipe compensator
CN104948870A (en) * 2014-03-27 2015-09-30 江苏奎泽机械工业有限公司 Novel nonmetal expansion joint
KR20200092248A (en) * 2019-01-24 2020-08-03 신동열 An expansion joint of double insulator pipe

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Publication number Priority date Publication date Assignee Title
JPH01214626A (en) * 1988-02-20 1989-08-29 Zojirushi Corp Vacuum double pipe
JPH1144389A (en) 1997-07-28 1999-02-16 Yokohama Rubber Co Ltd:The Manufacture of sealed vacuum vessel and manufacture of double vacuum bellows
US6695358B2 (en) * 1999-10-13 2004-02-24 Chart, Inc. Controlled leak cryogenic bayonet pipe spool and system
KR100493391B1 (en) * 2003-02-13 2005-06-07 유창밸브 주식회사 Expansion/contraction joint apparatus for Pre insulated piping

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102537581A (en) * 2011-12-27 2012-07-04 大连益多管道有限公司 Full-fixation-type bi-directional outer pipe metal corrugated compensator
CN102537582A (en) * 2011-12-27 2012-07-04 大连益多管道有限公司 Full-fixation-type combined hydrophobic-type bi-directional outer pipe corrugated compensator
CN103883833A (en) * 2014-03-17 2014-06-25 江苏曙光压力容器有限公司 Jacketed type corrugated pipe compensator
CN103851298A (en) * 2014-03-19 2014-06-11 江苏亚星波纹管有限公司 Heat-preserving waterproof fully-buried expansion joint
CN104948870A (en) * 2014-03-27 2015-09-30 江苏奎泽机械工业有限公司 Novel nonmetal expansion joint
KR20200092248A (en) * 2019-01-24 2020-08-03 신동열 An expansion joint of double insulator pipe

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