WO2014182070A1 - 매립 배관의 자동 잠금 스토퍼가 부착된 신축이음부 - Google Patents
매립 배관의 자동 잠금 스토퍼가 부착된 신축이음부 Download PDFInfo
- Publication number
- WO2014182070A1 WO2014182070A1 PCT/KR2014/004056 KR2014004056W WO2014182070A1 WO 2014182070 A1 WO2014182070 A1 WO 2014182070A1 KR 2014004056 W KR2014004056 W KR 2014004056W WO 2014182070 A1 WO2014182070 A1 WO 2014182070A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- expansion joint
- expansion
- locking
- pipe
- automatic locking
- Prior art date
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Classifications
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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
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
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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
- F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
- F16L27/127—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement with means for locking the longitudinal adjustment or movement in the final mounted position
- F16L27/1273—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement with means for locking the longitudinal adjustment or movement in the final mounted position by quick-acting means
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
- F16L1/09—Accessories therefor, e.g. anchors for bringing two tubular members closer to each other
-
- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/0847—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of hooks
-
- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/088—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring
Definitions
- the present invention relates to an expansion joint part with an automatic locking stopper of a buried pipe, and a disposable expansion joint material of a buried pipe (as a connecting means applied to repair a buried piping system, the slip tube moves up and down to the inside diameter of a stuffing box).
- It is a flexible joint structure that can be used only once in the piping system to absorb the expansion and contraction of the piping system even though the entire piping system expands to the calculated linear stress by welding and fixing the interface at More specifically, the expansion joint between the slip tube and the stuffing box prevents reverse movement due to the temperature change of the entire piping system through the expansion joint composed of several stoppers for each expansion and absorption displacement, and displays the extension absorption movement length. It relates to an expansion joint with an automatic locking stopper of a buried pipe.
- the landfill method of heat pipes for district heating used in Korea is constructed in a non-compensated manner in which a plurality of fluid transport pipes are constructed without expansion joints to form a fluid transport pipe.
- the pipeline for this fluid transfer causes expansion of the pipeline after prolonged use in the case of hot fluid of about 120 ° C. such as district heating fluid.
- the expansion of pipelines causes cracks and damages of the pipeline itself, or the pipeline is abnormally twisted.
- the transport fluid leaks into the ground, and the ground leakage fluid flows on the road and obstructs road traffic. And the waste of high temperature fluid is wasted.
- the method known to solve this problem is to open all the pipes, solve the cause of leakage (replacement of pipes, etc.), and then heat the pipe to a predetermined preheat temperature calculated by injecting fluid at about 60 °C or using electricity. After the backfill, the pay has been made.
- the bellows type expansion joint means that the bellows of elasticity is connected between the inner and the outer sides so that the bellows is increased (stretching) when the thermal expansion occurs due to the transfer fluid of the piping system (stretching action).
- the bellows type expansion joint means that the bellows is made of stainless steel
- the bellows-type expansion joint means has a brittleness due to heterogeneous properties because it is different from the carbon steel pipe, and there is also a problem of fatigue brittleness due to continuous use of the bellows.
- the thermal stress generated in the steel pipe is designed to be within the allowable stress without a separate mechanical compensation device (such as a bellows type expansion joint). If pre-stress is introduced and the slip pipe is moved to the inside diameter of the stuffing box, the pre-stress should behave like a preheated pipe with the prestress designed. Since each expansion joint must be absorbed by a predetermined amount of expansion, it is necessary to allow the expansion amount to be absorbed.
- the present invention while constructing a number of expansion joints to refill after the construction of the construction pipe for fast and accurate underground buried pipeline to repair the pipes according to the design dimensions of the initial construction of the piping system, each expansion joint during the pre-heating
- An object of the present invention is to provide an expansion joint provided with an automatic locking stopper which absorbs the expansion amount by the calculated expansion amount, but prevents the expansion movement from being over (over) by expanding the expansion joint by the calculated expansion amount.
- At least one engaging groove is formed along the inner and outer circumferential surfaces of the slip tube, and the outer and inner circumferential surfaces of the stuffing box are achieved as expansion joints having a locking groove and a locking member which are locked at the same time as the locking groove.
- the locking groove is a first locking groove, a second locking groove, a third locking groove to measure the stretched and deformed length of the expansion joint. It is preferable to form a plurality of grooves at predetermined intervals and to display the displacement.
- the present invention is to repair the pipe in accordance with the design dimensions of the initial construction of the piping system when the leakage occurs due to the thermal expansion, ground subsidence of the fluid transfer piping system, in particular, the rapid and accurate underground buried pipeline
- the expansion joint is provided, and in providing the expansion joint, a plurality of expansion joints which absorb the expansion amount by the calculated expansion amount (according to the temperature change of the transfer fluid) and then automatically lock the reverse movement of the inner pipe for transferring the fluid.
- the present invention has the effect of preventing the reverse movement due to the slip action due to the expansion and contraction of the piping system due to various temperature drop, ground subsidence, ground change, etc. in the underground of the buried pipe, and to display the amount of expansion.
- it is repaired by the expansion joint structure of the present invention, and moved to the length of the stretched slip tube, and then welded to allow it to act according to the pre-stress of the existing piping system. .
- 1A, 1B to 1C are enlarged views of main parts of a conventional bellows type expansion joint
- Figure 2a is before the preheating expansion of the main portion of the expansion joint applied to the expansion joint of the expansion joint with the automatic locking stopper of the buried pipe of the present invention is applied to the expansion joint with the automatic locking stopper of the buried pipe,
- Figure 2b is an enlarged view of the main part of the expansion joint applied when the expansion joint with the automatic locking stopper of the buried pipe of the present invention is applied when the expansion joint with the automatic locking stopper of the buried pipe is pre-heated,
- 3A is a preliminary drawing of the main part of the expansion joint applied to the expansion joint of the expansion joint of the expansion joint of the buried pipe with an automatic locking stopper of the buried pipe according to another embodiment of the present invention.
- Figure 3b is an enlarged view of the main part of the expansion joint applied when the expansion joint of the expansion joint of the buried pipe with an automatic locking stopper of the buried pipe according to another embodiment of the present invention is preheated,
- FIG. 5 is a schematic diagram of a state in which the backfilling of the electrical connection including the expansion joint is made in the construction method of the fluid transfer pipe using the expansion joint with an automatic locking stopper of the buried pipe according to the present invention
- Figure 6 is a piping system including the expansion joint in the construction method of the fluid transfer pipe using the expansion joint with an automatic locking stopper of the buried pipe in the thermal expansion during the fluid transfer slip tube is reversed in the stuffing box locked state Is a diagram showing a state to prevent movement,
- FIG. 7 is a diagram illustrating a method for constructing a fluid transfer pipe using an expansion joint according to another embodiment to which an automatic locking stopper is attached to a buried pipe, in which a piping system including an expansion joint is locked in a stuffing box due to thermal expansion during fluid transfer. It is a figure which shows a state so that it may not be moved back to a state.
- Figure 2a is a pre-heated expansion drawing of the main portion of the expansion joint applied when the expansion joint with the automatic locking stopper of the buried piping of the present invention is applied to the expansion joint with the automatic locking stopper of the buried piping
- 2b is an enlarged view of the main part of the expansion joint applied when the expansion joint with the automatic locking stopper of the buried pipe according to the present invention is applied at the time of construction of the expansion joint with the automatic locking stopper of the buried pipe.
- At least one locking groove 22 is formed along the outer circumferential surface of the slip tube 20, and the first locking member 36 is locked to the locking groove 22 at the inlet side inner circumferential surface of the stuffing box 30.
- the first locking groove 35 is received and sunk to form.
- the locking groove 22 is a predetermined interval such as the first locking groove 221, the second locking groove 222, the third locking groove 223, etc. to measure the stretched and deformed length of the expansion joint by the calculated amount of expansion and contraction. To form.
- the lengths and spacings of these locking grooves are to reflect the predesigned values according to the construction site situation.
- Figure 3a is a preliminary drawing of the main portion of the expansion joint applied to the expansion joint applied to the expansion joint of the expansion joint of the buried pipe with an automatic locking stopper of the present invention
- buried piping 3B is an enlarged view of the main part of the expansion joint applied to the expansion joint of the expansion joint according to the embodiment of the present invention, in which the expansion joint of the buried piping is equipped with an automatic locking stopper. to be.
- At least one locking groove 32 is formed along the inner circumferential surface of the stuffing box 30, and the second locking member 25 is locked to the locking groove 32 on the outer peripheral surface of the tip side of the slip tube 20.
- the second locking groove 23 accommodated and formed therein is formed.
- the locking groove 32 is a predetermined interval such as the first locking groove 321, the second locking groove 322, the third locking groove 323, in order to measure the stretched and deformed length of the expansion joint by the calculated amount of expansion and contraction. Leave and form a large number.
- the lengths and spacings of these locking grooves are to reflect the predesigned values according to the construction site situation.
- the construction method of the expansion joint with an automatic locking stopper of the buried pipe comprises an expansion joint installation step, a piping system preheating step, a buried step, and a reverse movement checking step.
- Figure 4 shows the installation of the expansion joint after installing the expansion joint in the construction method of the fluid transporting pipe in the urban underground using the expansion joint with the automatic locking stopper of the buried pipe of the present invention to refill the piping
- 5 is a schematic view showing a state in which a back connection of a distribution system including an expansion joint is made in a construction method of a fluid transfer pipe using an expansion joint with an automatic locking stopper of a buried pipe according to the present invention
- FIG. In the construction method of a fluid transfer pipe using an expansion joint with an automatic locking stopper of the buried pipe, the piping system including the expansion joint is prevented from being moved back into the locked state in the stuffing box due to thermal expansion during fluid transfer. It is a figure which shows a state, FIG.
- Expansion joint of the other Example with an automatic locking stopper of the buried piping of this invention is a view showing a state in which the piping system including the expansion joint is prevented from moving back to the locked state in the stuffing box due to thermal expansion during fluid transfer.
- expansion joints are installed to allow slip pipes 20 of the expansion joint to which the automatic locking stopper of the buried pipe is attached to the stuffing box 30 in the state where only the expansion joint installation section is attached. do.
- the piping system preheating step (b) in the construction method of the fluid transporting pipe in the city underground using the expansion joint with the automatic locking stopper of the buried pipe according to the present invention in advance the entire piping relationship in the state where the expansion joint is installed By preheating to the calculated preheating temperature, the piping system is thermally expanded so that the slip pipes 20 of the expansion joints of the entire piping system are closely adhered to and maintained in the stuffing box 3.
- pre-heating system preheating step of the present invention is constructed in the following detailed steps based on the illustration.
- Preheating the expansion joint n at the position and the nth pipe part n connected to the expansion joint n including the expansion joint n is electrically preheated in order from the first expansion joint of the plurality of expansion joints.
- the entire piping system from the first pipe part (1) to the nth pipe part (n) is sequentially preheated in sequence by continuously preheating and shrinking step by step until the slip tube reaches the inner stopper of the stuffing box. Will be contracted.
- End-stretched expansion joints can be backfilled (embedded) over the entire system.
- the reverse movement checking step (d) of the construction method of the fluid transporting pipe in the city center using the expansion joint with the automatic locking stopper of the buried pipe according to the drawings shows the moving length after a predetermined period of the buried piping system.
- the reverse movement length of the stuffing box 30 is determined through the first catching groove 221, the second catching groove 222, and the third catching groove 223 formed in the slip tube 20 step by step.
- the slip tube 20 is reversed (reverse movement).
- the first locking member 36 haunts and stops in the locking groove 22 formed in the slip pipe 20 of the expansion joint of the present invention.
- the deformed length of the expansion joint in which the expansion joint is moved may have a predetermined interval subdivided into a first catching groove 221, a second catching groove 222, and a third catching groove 223. As it is formed, it can be confirmed by the naked eye after displacement. That is, the state shown in FIG. 6 is stationary in the second locking groove 222, so that the displacement amount can be confirmed.
- the reverse movement confirmation step (d) of the construction method of the fluid transport pipe in the city underground using the expansion joint with the automatic locking stopper of the buried pipe of the present invention as shown in Figure 7 the inner peripheral surface of the stuffing box (30) Along the slip tube 20 is entered along the locking groove 32, the second locking member 25 is operated to lock. This operation is moved by the stretch length by the first locking groove 321, the second locking groove 322, the third locking groove 323 and the moving distance is confirmed through the slide surface 21 of the slip tube 20. (Tick).
- the construction method of the expansion joint with an automatic locking stopper of the present invention buried pipe and the expansion joint with an automatic locking stopper of the buried pipe using the same are reverse movement according to the temperature change after absorbing the expansion and contraction by the calculated amount of expansion and expansion.
- a stop device that automatically locks to prevent such occurrences is implemented. Therefore, a large number of expansion joints are calculated by preventing the reverse movement (reverse slippage) of the slip pipe due to sudden temperature drop or ground change applied to the buried piping system. It keeps the stretched amount absorbed by the stretched amount.
- n expansion joint
- 10 pipe
- 20 slip pipe
- 30 stuffing box
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Pipe Accessories (AREA)
Abstract
Description
Claims (2)
- 매립 배관의 자동 잠금 스토퍼가 부착된 신축이음부에 있어서,슬립관(20)의 외주면을 따라 제1걸림홈(221), 제2걸림홈(222), 제3걸림홈(223)을 소정 간격을 두고 형성하고, 스터핑박스(30)의 입구측 내주면에는 제1걸림홈(221), 제2걸림홈(222), 제3걸림홈(223)에 걸려 잠그어지는 제1잠금부재(36)를 형성하고, 이 제1잠금부재(36)은 제1잠금홈(35)에 출몰가능하게 수용되어 슬립관(20)의 신축 변형시 잠그어져 변형된 길이를 측정하는 것을 특징으로 하는 신축이음부.
- 제1항에 있어서,스터핑박스(30)의 내주면을 따라 제1걸림홈(321), 제2걸림홈(322), 제3걸림홈(323)을 형성하고, 슬립관(20)의 외주면에는 제1걸림홈(321), 제2걸림홈(322), 제3걸림홈(323)에 걸려 잠그어지는 제2잠금부재(25)가 제2잠금홈(23)에 출몰가능하게 수용되어 있는 것을 특징으로 하는 매립 배관의 자동 잠금 스토퍼가 부착된 신축이음부.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480026331.0A CN105229354B (zh) | 2013-05-10 | 2014-05-08 | 附着有自动锁止器的埋入管的伸缩连接部 |
US14/890,159 US20160091129A1 (en) | 2013-05-10 | 2014-05-08 | Expansion joint of underground piping having automatic locking stopper attached thereto |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130052989A KR101348259B1 (ko) | 2013-05-10 | 2013-05-10 | 매립 배관의 자동 잠금 스토퍼가 부착된 신축이음부 |
KR10-2013-0052989 | 2013-05-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014182070A1 true WO2014182070A1 (ko) | 2014-11-13 |
Family
ID=50144713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2014/004056 WO2014182070A1 (ko) | 2013-05-10 | 2014-05-08 | 매립 배관의 자동 잠금 스토퍼가 부착된 신축이음부 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20160091129A1 (ko) |
KR (1) | KR101348259B1 (ko) |
CN (1) | CN105229354B (ko) |
WO (1) | WO2014182070A1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200484093Y1 (ko) | 2015-09-10 | 2017-07-28 | 삼성중공업 주식회사 | 신축성 이음관 |
CN108843867B (zh) * | 2018-09-12 | 2024-01-02 | 长春亚大汽车零件制造有限公司 | 一种车辆管路系统用快插接头组件 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08312856A (ja) * | 1995-05-22 | 1996-11-26 | Koumei Seisakusho:Kk | 管継手 |
JPH09257178A (ja) * | 1996-03-21 | 1997-09-30 | Yano Giken Kk | 伸縮管継手 |
JP2003014169A (ja) * | 2001-06-28 | 2003-01-15 | Nippon Kokan Pipe Fittings Mfg Co Ltd | 差込み式管継手に差し込まれる管の端部構造 |
JP2005257046A (ja) * | 2004-03-15 | 2005-09-22 | Kurimoto Ltd | 耐震管継手 |
JP4471682B2 (ja) * | 2004-02-25 | 2010-06-02 | 株式会社栗本鐵工所 | 耐震管継手 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE915045C (de) * | 1952-12-19 | 1954-07-15 | Hans Kreidel Jun | Rohrverbindung |
GB2012385A (en) * | 1977-12-05 | 1979-07-25 | Reed International Ltd | Constraining Devices for Spigot and Socket Couplings |
DE3322008A1 (de) * | 1983-06-18 | 1985-01-10 | Harald 3060 Stadthagen Elsner | Vorrichtung zum trennen oder verbinden von teilen |
FR2762893B1 (fr) * | 1997-05-05 | 1999-06-18 | Pont A Mousson | Dispositif de raccordement d'elements de tuyauterie |
JP2001263557A (ja) | 2000-03-21 | 2001-09-26 | Kubota Corp | 合成樹脂管および管路 |
-
2013
- 2013-05-10 KR KR1020130052989A patent/KR101348259B1/ko active IP Right Grant
-
2014
- 2014-05-08 US US14/890,159 patent/US20160091129A1/en not_active Abandoned
- 2014-05-08 CN CN201480026331.0A patent/CN105229354B/zh not_active Expired - Fee Related
- 2014-05-08 WO PCT/KR2014/004056 patent/WO2014182070A1/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08312856A (ja) * | 1995-05-22 | 1996-11-26 | Koumei Seisakusho:Kk | 管継手 |
JPH09257178A (ja) * | 1996-03-21 | 1997-09-30 | Yano Giken Kk | 伸縮管継手 |
JP2003014169A (ja) * | 2001-06-28 | 2003-01-15 | Nippon Kokan Pipe Fittings Mfg Co Ltd | 差込み式管継手に差し込まれる管の端部構造 |
JP4471682B2 (ja) * | 2004-02-25 | 2010-06-02 | 株式会社栗本鐵工所 | 耐震管継手 |
JP2005257046A (ja) * | 2004-03-15 | 2005-09-22 | Kurimoto Ltd | 耐震管継手 |
Also Published As
Publication number | Publication date |
---|---|
CN105229354B (zh) | 2017-09-01 |
US20160091129A1 (en) | 2016-03-31 |
KR101348259B1 (ko) | 2014-01-09 |
CN105229354A (zh) | 2016-01-06 |
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