JPH08219345A - Expansion pipe joint - Google Patents
Expansion pipe jointInfo
- Publication number
- JPH08219345A JPH08219345A JP7023702A JP2370295A JPH08219345A JP H08219345 A JPH08219345 A JP H08219345A JP 7023702 A JP7023702 A JP 7023702A JP 2370295 A JP2370295 A JP 2370295A JP H08219345 A JPH08219345 A JP H08219345A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder pipe
- inner cylinder
- pipe
- tube
- packing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F16L27/1275—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 means of at least an external threaded bolt
- F16L27/12751—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 means of at least an external threaded bolt the threaded bolt extending longitudinally
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、水や油および気体を輸
送するポンプなどの性能試験を行う、吐出および吸込口
を固定された試験場において、被試験物の置場を固定し
試験を行う場合、被試験物の高さおよび長さの変化を配
管で吸収する試験装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a case where a test object is fixed in a test site where discharge and suction ports are fixed, for performing a performance test of a pump for transporting water, oil and gas. The present invention relates to a test device that absorbs changes in height and length of a device under test with piping.
【0002】[0002]
【従来の技術】従来の吐出および吸込口が固定された試
験場における試験装置としては、ポンプ等を所定の位置
に置いた後、排出口や吸込口の高さおよびポンプからそ
れぞれの距離の長さに配管を合わせて製作し結合してい
た。2. Description of the Related Art As a conventional test apparatus in a test site where discharge and suction ports are fixed, after placing a pump or the like at a predetermined position, the height of the discharge port or suction port and the length of each distance from the pump. The pipes were aligned and manufactured and joined.
【0003】また、配管の長さが調整できる伸縮管は、
以下のものがある。Further, the telescopic tube whose length can be adjusted is
There are the following:
【0004】1)JIS G5527「ダクタイル鋳鉄
異形管」に示されるスリーブ方式 2)金属やゴム等の材質を用いた蛇腹やベロース方式の
伸縮可撓継手 これらについては、伸縮長さが50〜200mmと短く、
水密性および気密性を保つ為のシール部のパッキンの交
換が、外筒と内筒を分解しなければ出来ない等、保全性
に問題があった。1) Sleeve system shown in JIS G5527 "Ductile cast iron deformed pipe" 2) Bellows type bellows type expansion and contraction flexible joint using materials such as metal and rubber. The expansion and contraction length of these is 50 to 200 mm. Short,
There was a problem with maintainability, such that the packing of the seal part for maintaining watertightness and airtightness could not be replaced unless the outer cylinder and the inner cylinder were disassembled.
【0005】また、締結する相手フランジのボルト孔の
位置ずれを補正する機構が付加されているものは見当ら
ない。Further, there is no one having a mechanism for correcting the positional deviation of the bolt holes of the mating flange to be fastened.
【0006】[0006]
【発明が解決しようとする課題】上記の従来技術の伸縮
管の水密性および気密性を保つためのパッキンの交換
は、外筒管から内筒管を引き出して交換しなければなら
ず、分解とパッキン交換後の再組付けに多大な時間を要
していた。In order to replace the packing for keeping the watertightness and airtightness of the above-mentioned conventional expansion tube, it is necessary to pull out the inner cylinder tube from the outer cylinder tube and replace the packing. It took a lot of time to reassemble after replacing the packing.
【0007】また、締結すべき互いのフランジ締付ボル
ト孔の位置のずれは、フランジを重ね合わせずれ量を計
測した後、内筒管を動力駆動やハンマ打撃などで円周方
向に回転させ、さらに半径方向のずれについては、ジャ
ッキやクレーン等で引き上げる等を行い締結していた。Further, as for the displacement of the positions of the flange tightening bolt holes to be fastened, the flanges are overlapped with each other, the displacement is measured, and then the inner cylindrical pipe is rotated in the circumferential direction by power driving or hammering, Further, with respect to the radial deviation, it was tightened by pulling it up with a jack or a crane.
【0008】本発明は、伸縮管の水密性および気密性を
保つ為のパッキンの交換を外筒管から内筒管を抜き出す
ことなく行おうとするものである。The present invention intends to replace the packing for keeping the watertightness and airtightness of the expansion tube without extracting the inner tube from the outer tube.
【0009】また、締結すべき互いのフランジ締付ボル
ト孔の位置ずれを、伸縮管駆動装置の内筒管を押し出す
軸推力を利用し、ずれ量の計測や他の動力を用いずに容
易に行わせようとするものである。Further, the positional deviation of the flange tightening bolt holes to be fastened can be easily carried out by utilizing the axial thrust for pushing the inner cylindrical tube of the expansion tube driving device without measuring the deviation amount or using other power. It is what you want to do.
【0010】[0010]
【課題を解決するための手段】外筒管と内筒管を分解す
ることなくパッキンの交換を可能とするため、内筒管の
長さを外筒管の長さより長くし、外筒管より突き出た内
筒管の外周にOリング等のパッキンを装着することによ
り、内筒管を外筒管から分解することなしに隣接した短
管の結合をはずして移動する。[Means for Solving the Problems] In order to replace the packing without disassembling the outer cylinder tube and the inner cylinder tube, the length of the inner cylinder tube is made longer than that of the outer cylinder tube and By mounting a packing such as an O-ring on the outer circumference of the protruding inner cylinder pipe, the adjacent short pipes can be disengaged and moved without disassembling the inner cylinder pipe from the outer cylinder pipe.
【0011】また、締結する相手フランジとの締付ボル
ト孔との位置ずれ調整装置は、伸縮する内筒管と締結す
る相手フランジの互いのボルト孔に、雄,雌の円錐形状
の芯出し具を取付け、円筒管を押し出す推力で円錐面を
ガイドとして上下および円周方向の位置ずれを強制的に
修正させる。Further, the positional deviation adjusting device for the tightening bolt hole with the mating flange to be fastened is such that the male and female conical centering tools are provided in the respective bolt holes of the mating flange to be fastened with the expanding and contracting inner cylindrical pipe. Is attached, and the thrust force that pushes out the cylindrical tube is used to forcibly correct the displacement in the vertical and circumferential directions using the conical surface as a guide.
【0012】[0012]
【作用】パッキンの交換は、伸縮管駆動装置を使用し、
最も縮めた状態にした後、伸縮管に隣接した短管の締結
をはずし、その隙間よりOリング等のパッキンを交換す
る。これによって外筒管より内筒管を分解せずにパッキ
ンの交換が可能になる。[Function] When replacing the packing, use the expansion tube drive device,
After making it the most contracted state, unfasten the short tube adjacent to the expansion tube and replace the packing such as the O-ring through the gap. This makes it possible to replace the packing without disassembling the inner tube from the outer tube.
【0013】締結するフランジの締結用ボルト孔の位置
ずれの調整は、フランジのボルト孔の等分2ケ所の位置
に、雄,雌の円錐形状の芯出し具をそれぞれ入れ、内筒
管を押し出す軸推力により円錐面を接触させ、位置ずれ
を調整する。一度位置ずれを調整したら伸縮管を縮ませ
芯出し具を取り除いた後、再度締付ける。To adjust the positional deviation of the fastening bolt holes of the flange to be fastened, insert male and female conical centering tools into the two equally spaced positions of the bolt holes of the flange, and push out the inner tube. The conical surfaces are brought into contact with each other by the axial thrust to adjust the positional deviation. Once the misalignment is adjusted, retract the expansion tube to remove the centering tool, and then tighten it again.
【0014】外筒管に取付けた駆動装置と内筒管の連結
部は、円周方向に自由に移動出来るようにしておく。The connecting portion between the drive unit attached to the outer cylindrical tube and the inner cylindrical tube is arranged to be freely movable in the circumferential direction.
【0015】これにより、駆動装置を作動させて内筒管
を押し出すことによりボルト孔位置の調整が可能とな
る。As a result, the position of the bolt hole can be adjusted by operating the drive device and pushing out the inner cylindrical pipe.
【0016】[0016]
【実施例】以下、本発明の実施例を図面により説明す
る。Embodiments of the present invention will be described below with reference to the drawings.
【0017】図1は、ポンプ性試験段取りの側面図を示
す。図1においてポンプベース5が固定されポンプ1の
設置中心位置が決められている。また、試験場の吸込み
口あるいは吐出口6も固定されている。ポンプ1の長さ
L0 および吸込み口あるいは吐出口の高さhは型式,大
きさにより変動する。平行配管7は、試験条件より規制
される直管で、3はポンプ1の口径に合わせる為のレジ
ューサである。試験場の吸込み口または吐出口配管の中
心間距離Lに対しポンプ1の長さが変動しても、その都
度その長さに合わせた配管を製作しなくても良いよう伸
縮管2を用いる。FIG. 1 shows a side view of the pumpability test setup. In FIG. 1, the pump base 5 is fixed and the installation center position of the pump 1 is determined. Further, the suction port or the discharge port 6 of the test site is also fixed. The length L 0 of the pump 1 and the height h of the suction port or the discharge port vary depending on the model and size. The parallel pipe 7 is a straight pipe regulated by the test conditions, and 3 is a reducer for adjusting the diameter of the pump 1. Even if the length of the pump 1 is changed with respect to the center distance L of the suction port or the discharge port pipe of the test site, the expansion pipe 2 is used so that it is not necessary to manufacture the pipe according to the length each time.
【0018】同様に高さ方向についてもhの変動に対応
し、Hを一定に調整するため伸縮管2を用いる。Similarly, also in the height direction, the expansion and contraction tube 2 is used in order to respond to the fluctuation of h and adjust H to be constant.
【0019】(実施例1)図2は、伸縮管継ぎ手の説明
図を示す。内筒管8は、外筒管9に取付けた駆動装置1
0により伸縮する。内筒管は外筒管より長くし、最も縮
めた時に外筒管より突き出た内筒管8の外周部に外筒管
との隙間をシールし、水密性を保つ目的でOリング等の
パッキン12を取付ける。(Embodiment 1) FIG. 2 is an explanatory view of an expansion pipe joint. The inner tube 8 is the drive device 1 attached to the outer tube 9.
Expands and contracts by 0. The inner tube is made longer than the outer tube, and a seal such as an O-ring is provided for the purpose of sealing the gap between the outer tube and the outer tube of the inner tube 8 protruding from the outer tube when the tube is most compressed to keep watertightness. Install 12.
【0020】パッキン交換時以外では、Oリング12は
常に外筒管9の内面と接触して気密性を保っている。The O-ring 12 is always in contact with the inner surface of the outer tube 9 to keep airtightness except when the packing is replaced.
【0021】(a),(c)は伸縮管継ぎ手が最も縮んだ
状態、(b)は最も伸びた状態を示す。図3は、図2
(a)のA部の拡大図である。(A) and (c) show the state where the expansion joint is contracted most, and (b) shows the state where it is expanded most. FIG. 3 shows FIG.
It is an enlarged view of the A section of (a).
【0022】Oリングの位置を、外筒管の長さよりSだ
け長く出た内筒管の外周に設けたことにより、図1の短
管4の締結をはずすことのみで、外筒管9から内筒管8
を引き出すことなしにOリングの交換が可能となる。Since the position of the O-ring is provided on the outer circumference of the inner cylindrical tube extending by S from the length of the outer cylindrical tube, it is possible to remove the short tube 4 shown in FIG. Inner tube 8
The O-ring can be replaced without pulling out.
【0023】(実施例2)図4は内筒管8および相手レ
ジューサ3のフランジボルト締付用孔の形状と、そのボ
ルト締付用孔にボルト孔位置調整具を取付た状態を示
す。(Embodiment 2) FIG. 4 shows the shapes of the flange bolt tightening holes of the inner cylindrical pipe 8 and the mating reducer 3 and the state in which a bolt hole position adjuster is attached to the bolt tightening holes.
【0024】本状態で、ボルト孔位置調整具14,15
が接触するまで内筒管8を伸ばす。位相ずれがあった場
合には、ボルト孔位置規正こま14,15の円錐面をガ
イドにして、内筒管の円周方向に変位を与えながら位置
ずれを調整する。In this state, the bolt hole position adjusting tools 14, 15
The inner tubular tube 8 is extended until they come into contact. If there is a phase shift, the position shift is adjusted while displacing the inner cylindrical tube in the circumferential direction using the conical surfaces of the bolt hole position regulating tops 14 and 15 as guides.
【0025】ボルト孔位置調整具の円錐の大径はフラン
ジボルト孔ピッチと同等以上とすることにより円周方向
にどのような位置ずれがあっても、調整することができ
る。By setting the large diameter of the cone of the bolt hole position adjusting tool to be equal to or larger than the flange bolt hole pitch, it is possible to adjust any positional deviation in the circumferential direction.
【0026】内筒管8自身の円周方向変位を可能にする
ため、内筒管を押し出す駆動装置10と内筒管8の連結
は、図2に示すようにフランジの側面に、T形溝を施
し、その中に先端を球状に加工したT形駒11を入れ、
それを駆動装置10のピストンと連結する構造とする。In order to allow the inner cylinder tube 8 to be displaced in the circumferential direction, the driving device 10 for pushing the inner cylinder tube and the inner cylinder tube 8 are connected to each other by a T-shaped groove on the side surface of the flange as shown in FIG. Put the T-shaped piece 11 whose tip is processed into a sphere into it,
The structure is such that it is connected to the piston of the drive unit 10.
【0027】本構造によりボルト孔位置調整具で調整さ
れた円周方向変位を吸収することが出来る。With this structure, it is possible to absorb the circumferential displacement adjusted by the bolt hole position adjuster.
【0028】図5は、内筒管8を伸ばし相手レジューサ
3のフランジ面と締結した状態を示す。ボルト孔位置調
整具14,15の円錐面を全面接触させて、円周方向の
位相を調整した後、内筒管8を縮めボルト孔位置調整具
14,15を取り除いた後、再度伸ばし自重撓み等によ
るわずかな位置ずれの調整は図5に示す内筒管フランジ
より突出したブッシュ13の円錐面と、相手フランジの
ボルト孔の面取り部で行う。FIG. 5 shows a state in which the inner tube 8 is extended and fastened to the flange surface of the mating reducer 3. After the conical surfaces of the bolt hole position adjusters 14 and 15 are brought into full contact with each other to adjust the phase in the circumferential direction, the inner cylindrical pipe 8 is contracted, the bolt hole position adjusters 14 and 15 are removed, and then the bolt hole position adjusters 14 and 15 are stretched again and bent by their own weight. Adjustment of a slight displacement due to the above is performed by the conical surface of the bush 13 protruding from the inner cylindrical pipe flange shown in FIG. 5 and the chamfered portion of the bolt hole of the mating flange.
【0029】これにより円周方向および自重撓み等によ
る位置ずれを伸縮駆動装置の軸推力を利用して行うこと
が可能となる。As a result, it becomes possible to shift the position in the circumferential direction and due to the deflection of its own weight or the like by utilizing the axial thrust of the expansion and contraction drive device.
【0030】[0030]
【発明の効果】本発明のパッキン12の交換方法は、従
来の外筒管9から内筒管8を引き抜き分解して交換する
方法に比べ、伸縮駆動装置10との切離しや内筒管8の
引き抜き分解,再組立が不要と成り、隣接した短管の締
結をはずし移動させるだけですむため、交換時間が大幅
に低減できる。The packing 12 replacement method of the present invention is different from the conventional method of pulling out the inner cylinder tube 8 from the outer cylinder tube 9 and disassembling and replacing the inner cylinder tube 8 with the expansion / contraction drive device 10 and the inner cylinder tube 8. Since there is no need to pull out, disassemble and reassemble, it is only necessary to disengage and move the adjacent short pipes, and the replacement time can be greatly reduced.
【0031】本発明の締結するフランジのボルト孔位置
ずれ調整方法は、従来のハンマ打撃や、クレーンなどの
動力を利用しての調整方法に比べ、伸縮駆動装置による
軸推力を利用して行う事ができるためできるため、他の
動力が不要となり締結するフランジのボルト孔位置ずれ
調整の調整作業時間が大幅に低減できる。The method for adjusting the displacement of the bolt hole position of the flange to be fastened according to the present invention uses the axial thrust of the telescopic drive device, as compared with the conventional adjustment method using the power of a hammer or a crane. Since it is possible to do so, no other power is required, and the adjustment work time for adjusting the bolt hole position deviation of the flange to be fastened can be greatly reduced.
【図1】ポンプ性能試験段取り側面図。FIG. 1 is a side view of a pump performance test setup.
【図2】本発明の伸縮管継手の説明図。FIG. 2 is an explanatory view of the expansion joint of the present invention.
【図3】図2のA部の断面図。FIG. 3 is a sectional view of a portion A in FIG.
【図4】フランジボルト孔位置ずれ調整具の取付け断面
図。FIG. 4 is a mounting cross-sectional view of a flange bolt hole position deviation adjuster.
【図5】フランジ締結状態ボルト孔部の断面図。FIG. 5 is a cross-sectional view of a bolt hole portion in a flange fastening state.
8…内筒管、9…外筒管、10…伸縮駆動装置、14,
15…位置ずれ調整具。8 ... Inner cylinder tube, 9 ... Outer cylinder tube, 10 ... Expansion / contraction drive device, 14,
15 ... Misalignment adjuster.
Claims (1)
いて、種々な高さ及び長さの試験に対応するため用いる
伸縮管継ぎ手において、伸縮を行うために設けられた外
筒管と内筒管のシール位置を、前記内筒管の長さを前記
外筒管より長くし、最大収縮位置で前記外筒管より突き
出た前記内筒管の外周にパッキンを設けたこと特徴とす
る伸縮管継ぎ手。1. An outer tube and an inner tube provided for expansion and contraction in an expansion joint, which is used to support tests of various heights and lengths in a test site where a discharge port and a suction port are fixed. A telescopic tube characterized in that the sealing position of the tube is such that the length of the inner tube is longer than that of the outer tube, and packing is provided on the outer periphery of the inner tube protruding from the outer tube at the maximum contraction position. Fitting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7023702A JPH08219345A (en) | 1995-02-13 | 1995-02-13 | Expansion pipe joint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7023702A JPH08219345A (en) | 1995-02-13 | 1995-02-13 | Expansion pipe joint |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH08219345A true JPH08219345A (en) | 1996-08-30 |
Family
ID=12117715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7023702A Pending JPH08219345A (en) | 1995-02-13 | 1995-02-13 | Expansion pipe joint |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH08219345A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101975318A (en) * | 2010-11-05 | 2011-02-16 | 锦州重型水泵有限公司 | Telescopic sealing pipe |
CN102705612A (en) * | 2012-05-30 | 2012-10-03 | 辽宁工程技术大学 | Telescopic joint device for deep well ice conveying pipelines |
EP2580401A1 (en) * | 2010-06-09 | 2013-04-17 | Xylem IP Holdings LLC | Suction connection for connecting a suction pipe to a dry installed centrifugal pump |
CN103090108A (en) * | 2013-02-21 | 2013-05-08 | 中国海洋石油总公司 | Simple and easy underwater flange installation machine |
CN110726019A (en) * | 2019-10-15 | 2020-01-24 | 宁夏森源重工设备有限公司 | Driving type expansion joint and application thereof |
CN110848502A (en) * | 2019-11-25 | 2020-02-28 | 徐州中通给排水材料有限公司 | Water supply pipeline with protection |
-
1995
- 1995-02-13 JP JP7023702A patent/JPH08219345A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2580401A1 (en) * | 2010-06-09 | 2013-04-17 | Xylem IP Holdings LLC | Suction connection for connecting a suction pipe to a dry installed centrifugal pump |
EP2580401A4 (en) * | 2010-06-09 | 2014-12-31 | Xylem Ip Holdings Llc | Suction connection for connecting a suction pipe to a dry installed centrifugal pump |
CN101975318A (en) * | 2010-11-05 | 2011-02-16 | 锦州重型水泵有限公司 | Telescopic sealing pipe |
CN102705612A (en) * | 2012-05-30 | 2012-10-03 | 辽宁工程技术大学 | Telescopic joint device for deep well ice conveying pipelines |
CN103090108A (en) * | 2013-02-21 | 2013-05-08 | 中国海洋石油总公司 | Simple and easy underwater flange installation machine |
CN110726019A (en) * | 2019-10-15 | 2020-01-24 | 宁夏森源重工设备有限公司 | Driving type expansion joint and application thereof |
CN110848502A (en) * | 2019-11-25 | 2020-02-28 | 徐州中通给排水材料有限公司 | Water supply pipeline with protection |
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