JPH11257538A - Piping flange mounting demounting device - Google Patents

Piping flange mounting demounting device

Info

Publication number
JPH11257538A
JPH11257538A JP6122698A JP6122698A JPH11257538A JP H11257538 A JPH11257538 A JP H11257538A JP 6122698 A JP6122698 A JP 6122698A JP 6122698 A JP6122698 A JP 6122698A JP H11257538 A JPH11257538 A JP H11257538A
Authority
JP
Japan
Prior art keywords
pipe
displacement
flange
piping
flanges
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
Application number
JP6122698A
Other languages
Japanese (ja)
Inventor
Takeshi Nishiyama
武 西山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
Priority to JP6122698A priority Critical patent/JPH11257538A/en
Publication of JPH11257538A publication Critical patent/JPH11257538A/en
Pending legal-status Critical Current

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
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

PROBLEM TO BE SOLVED: To easily perform mounting/demounting works of flanges without damaging the flanges. SOLUTION: The device is provided with a clamping member 18 capable of holding a pipeline forming body 3 in the racial direction, which is connected with an elbow pipe 6 to be moved at the time of inspection through flanges 9 and 10 in an engaging structure, a displacement transmitting member 19 fixed to the clamping member 18, a base plate 11 fixed to a stationary structure 12 located directly below the pipeline forming body 3, a slide plate 14 which is so provided in the base plate 11 so as to be approached to/parted from the pipeline forming body 3, a load supporting member 16 mounted on the slide plate 14 in such a way that it can support the displacement transmitting member 19, and it can guide the member 19 to the pipe axial direction of the pipeline forming body 3, and with a pipe axial direction displacement means 20 which displaced the displacement transmitting member 19 in the pipe axial direction of the pipeline forming body 3.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、嵌合構造のフラン
ジの着脱を容易に行なえる配管フランジ着脱装置に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe flange attaching / detaching apparatus for easily attaching / detaching a flange having a fitting structure.

【０００２】[0002]

【従来の技術】図４は原子炉圧力容器の内部に設置され
ているスプレーノズルへ給水を行なうための給水配管の
一例を示すもので、この給水配管は、原子炉圧力容器の
外部に位置し且つ原子炉圧力容器へ向かって略水平に延
びる直管１と、流体流通方向上流端が直管１の原子炉圧
力容器寄りの端部に溶接で接続された逆止弁２とからな
る配管構成体３を備えている。2. Description of the Related Art FIG. 4 shows an example of a water supply pipe for supplying water to a spray nozzle installed inside a reactor pressure vessel. This water supply pipe is located outside a reactor pressure vessel. And a check valve 2 whose upstream end in the fluid flow direction is welded to an end of the straight pipe 1 near the reactor pressure vessel. The body 3 is provided.

【０００３】原子炉圧力容器の上蓋４のスプレーノズル
用のスタンド管５には、エルボ管６の先端部が嵌合構造
のフランジ７，８を介して接続されている。[0003] The tip of an elbow pipe 6 is connected to a stand pipe 5 for a spray nozzle of an upper lid 4 of a reactor pressure vessel via flanges 7 and 8 of a fitting structure.

【０００４】配管構成体３の先端部をなす逆止弁２の流
体流通方向下流端は、エルボ管６の基端部に嵌合構造の
フランジ９，１０を介して接続されている。[0004] The downstream end in the fluid flow direction of the check valve 2, which is the distal end of the pipe structure 3, is connected to the proximal end of the elbow pipe 6 via flanges 9, 10 of a fitting structure.

【０００５】また、配管構成体３の先端寄り部分及び中
間部分は、原子炉運転時の熱変形が許容されるようにす
るために、他の固定構造物に支持されていない。[0005] In addition, the portion near the front end and the intermediate portion of the pipe structure 3 are not supported by other fixed structures in order to allow thermal deformation during operation of the reactor.

【０００６】なお、通常、原子炉圧力容器の上蓋４及び
配管構成体３は、断熱材３０，３１によって全体的に被
覆されている。Normally, the upper cover 4 and the piping structure 3 of the reactor pressure vessel are entirely covered with heat insulating materials 30 and 31.

【０００７】原子炉の定期検査を実施する際には、断熱
材３０，３１を取り除き、配管構成体３の先端寄り部分
にワイヤロープを巻き付け、該ワイヤロープをチェーン
ブロックを介して原子炉圧力容器の上方に位置している
固定構造物から吊り下げることにより、配管構成体３が
略水平に支持されるようにした後、逆止弁２とエルボ管
６とを接続しているフランジ９，１０のボルト締結を開
放する。When performing a periodic inspection of the reactor, the heat insulating materials 30 and 31 are removed, a wire rope is wound around a portion of the piping structure 3 near the tip, and the wire rope is connected to the reactor pressure vessel via a chain block. After the pipe structure 3 is supported substantially horizontally by suspending it from the fixed structure located above the flanges 9 and 10 connecting the check valve 2 and the elbow pipe 6. Release the bolt connection.

【０００８】次いで、別のワイヤロープを配管構成体３
の先端寄り部分に巻き付け、該ワイヤロープをチェーン
ブロックを介して配管構成体３の先端寄り部分の反上蓋
側に位置する固定構造物に連結し、チェーンブロックに
より配管構成体３の先端寄り部分を管軸方向に沿って上
蓋４から離隔するように変位させ、フランジ９，１０の
嵌合を解除する。Next, another wire rope is connected to the piping structure 3.
And the wire rope is connected via a chain block to a fixed structure located on the side opposite to the top end of the pipe structure 3 near the front end, and the chain block is used to connect the wire structure to the front end of the pipe structure 3. The flanges 9 and 10 are displaced so as to be separated from the upper lid 4 along the pipe axis direction, and the fitting of the flanges 9 and 10 is released.

【０００９】更に、配管構成体３の図示されていない基
端と他の部材との締結を解除したうえ、配管構成体３を
仮置き場所へ移送して、上蓋４の開放作業を行なう。Further, the fastening between the base end (not shown) of the piping structure 3 and other members is released, and the piping structure 3 is transferred to a temporary storage location to open the upper lid 4.

【００１０】[0010]

【発明が解決しようとする課題】しかしながら、上述し
たように、配管構成体３の吊り下げ支持手段あるいは管
軸方向への変位手段にワイヤロープ及びチェーンブロッ
クなどを用いると、これらの擦過に起因してフランジ
９，１０が損傷することがある。However, as described above, if a wire rope, a chain block, or the like is used as the means for suspending and supporting the pipe structure 3 or the means for displacing it in the axial direction of the pipe, the scraping of these elements may occur. As a result, the flanges 9 and 10 may be damaged.

【００１１】また、配管構成体３とエルボ管６を再び接
続する際に、配管構成体３の先端寄り部分をワイヤロー
プ及びチェーンブロックによって吊り下げ支持するの
で、対向するフランジ９，１０の芯合せを容易に行なう
ことができない。Further, when the pipe structure 3 and the elbow pipe 6 are connected again, a portion near the tip of the pipe structure 3 is suspended and supported by a wire rope and a chain block, so that the opposed flanges 9 and 10 are aligned. Cannot be easily performed.

【００１２】本発明は上述した実情に鑑みてなしたもの
で、フランジを損傷させずにフランジの着脱作業を容易
に行なえる配管フランジ着脱装置を提供することを目的
とするものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a pipe flange attaching / detaching apparatus capable of easily attaching / detaching a flange without damaging the flange.

【００１３】[0013]

【課題を解決するための手段】上記目的を達成するた
め、本発明の請求項１に記載の配管フランジ着脱装置で
は、点検時に移動させるべき対象部材に嵌合構造のフラ
ンジを介して接続された配管構成体の接続端近傍部分を
径方向に挟持し得るクランプ部材と、該クランプ部材に
固着した変位伝達部材と、配管構成体の接続端近傍部分
に隣接して設置され且つ固定構造物に固着した基盤と、
該基盤に配管構成体に対して近接離隔し得るように設け
た移動部材と、変位伝達部材を支持し且つ該変位伝達部
材を配管構成体の管軸方向へ案内し得るよう移動部材に
取り付けた荷重支持部材と、変位伝達部材を配管構成体
の管軸方向に沿って前記の対象部材から離隔するように
変位させる管軸方向変位手段とを備える。In order to achieve the above object, in the pipe flange attaching / detaching apparatus according to the first aspect of the present invention, the pipe flange attaching / detaching apparatus is connected to an object to be moved at the time of inspection via a flange having a fitting structure. A clamp member capable of radially clamping a portion near the connection end of the pipe structure; a displacement transmitting member fixed to the clamp member; and a fixed member installed adjacent to the portion near the connection end of the pipe structure and fixed to the fixed structure. And the foundation
A moving member provided on the base so as to be able to approach and separate from the piping structure, and a displacement transmitting member is mounted on the moving member to support the displacement transmitting member and to guide the displacement transmitting member in the pipe axis direction of the piping structure. A load supporting member; and a tube axial direction displacement means for displacing the displacement transmitting member so as to be separated from the target member along the tube axis direction of the pipe structure.

【００１４】本発明の請求項２に記載の配管フランジ着
脱装置では、本発明の請求項１に記載の配管フランジ着
脱装置の構成に加えて、変位伝達部材を荷重支持部材に
対して配管構成体の管径方向に変位させ得る管径方向変
位手段が設けられている。According to a second aspect of the present invention, in addition to the configuration of the first aspect of the present invention, in addition to the configuration of the first aspect of the present invention, the displacement transmitting member is provided with respect to the load supporting member. A radial displacement means is provided which can be displaced in the radial direction.

【００１５】本発明の請求項１あるいは請求項２に記載
した配管フランジ着脱装置のいずれにおいても、移動部
材を配管構成体に近接させたうえ、クランプ部材で配管
構成体の接続端近傍部分を径方向に挟持し、当該配管構
成体の接続端近傍部分を、クランプ部材、変位伝達部
材、荷重支持部材、移動部材及び基盤を介して固定構造
物に支持する。In any one of the pipe flange attaching / detaching apparatuses according to the first and second aspects of the present invention, the moving member is brought close to the piping structure, and the portion near the connection end of the piping structure is clamped by the clamp member. And a portion near the connection end of the piping structure is supported by a fixed structure via a clamp member, a displacement transmitting member, a load supporting member, a moving member, and a base.

【００１６】次いで、対象部材と配管構成体とを接続す
るフランジの締結を解放した後、管軸方向変位手段によ
り変位伝達部材を対象部材から離隔するように変位させ
て、両フランジの嵌合を解除する。Next, after releasing the fastening of the flange connecting the target member and the pipe structure, the displacement transmitting member is displaced by the axial displacement means so as to be separated from the target member, and the fitting of the two flanges is performed. To release.

【００１７】また、配管構成体が対象部材に接続されて
いるときには、クランプ部材による配管構成体の挟持を
解除し、移動部材を配管構成体から離隔させておく。When the piping structure is connected to the target member, the clamping of the piping structure by the clamp member is released, and the moving member is separated from the piping structure.

【００１８】本発明の請求項２に記載した配管フランジ
着脱装置においては、対象部材と配管とを接続するフラ
ンジを締結する際に、管径方向変位手段により配管の接
続端近傍部分を管径方向へ微小変位させ、両フランジの
位置合せを行なう。In the pipe flange attaching / detaching apparatus according to the second aspect of the present invention, when the flange for connecting the target member and the pipe is fastened, a portion in the vicinity of the connection end of the pipe is moved in the pipe diameter direction by the pipe radial displacement means. And the two flanges are aligned.

【００１９】[0019]

【発明の実施の形態】以下、本発明の実施の形態を、図
示例と共に説明する。Embodiments of the present invention will be described below with reference to the drawings.

【００２０】図１から図３は本発明の配管フランジ着脱
装置の実施の形態の一例を示すものであり、図中、図４
と同一符号を付したものは同一物を表す。FIGS. 1 to 3 show an embodiment of a pipe flange attaching / detaching apparatus according to the present invention.
Those denoted by the same reference numerals as the same represent the same items.

【００２１】この配管フランジ着脱装置は、ベースプレ
ート１１、スライドプレート１４、荷重支持部材１６、
クランプ部材１８、管軸方向変位手段２０、及び管径方
向変位手段２５を備えている。The pipe flange attaching / detaching apparatus includes a base plate 11, a slide plate 14, a load supporting member 16,
The apparatus includes a clamp member 18, a tube axial displacement unit 20, and a tube radial displacement unit 25.

【００２２】ベースプレート１１は、所定の幅と長さと
を有し、配管構成体３の直管１の逆止弁２寄りの直下の
原子炉圧力容器上に配置されている固定構造物１２の上
面に、配管構成体３の管軸（図２に示す符号２９）に平
行して水平方向に延びるように設けられ、上方からみて
管軸２９を中心とする対称位置に、管軸２９に平行する
方向に所定の間隔を隔てて配置されたボルト孔１３を有
する。The base plate 11 has a predetermined width and length, and is an upper surface of the fixed structure 12 disposed on the reactor pressure vessel immediately below the check valve 2 of the straight pipe 1 of the piping structure 3. Is provided so as to extend in the horizontal direction in parallel with the pipe axis (reference numeral 29 shown in FIG. 2) of the pipe structure 3, and is parallel to the pipe axis 29 at a symmetrical position about the pipe axis 29 when viewed from above. It has bolt holes 13 arranged at predetermined intervals in the direction.

【００２３】スライドプレート１４，１４は、ベースプ
レート１１上の管軸２９を中心とする対称位置に配置さ
れたときに、ベースプレート１１のボルト孔１３に適合
するように穿設され且つ管軸２９に直交する方向へ延び
る長孔１５を有し、該長孔１５と前記のボルト孔１３と
に挿通した締結ボルト２８によってベースプレート１１
に固定され且つ長孔１５の長さの範囲内において配管構
成体３に対して近接離隔し得るようにベースプレート１
１に沿って水平方向へスライドさせることができるよう
に形成されている。The slide plates 14, 14 are formed so as to fit into the bolt holes 13 of the base plate 11 and are orthogonal to the tube axis 29 when arranged at symmetrical positions about the tube axis 29 on the base plate 11. The base plate 11 has a long hole 15 extending in a direction in which the base plate 11 is inserted by the fastening bolt 28 inserted into the long hole 15 and the bolt hole 13.
So that the base plate 1 is fixed to the
1 so that it can be slid in the horizontal direction.

【００２４】而して、前記の長孔１５の反配管構成体側
の端部に締結ボルト２８が当接する位置において、後述
のクランプ部材１８により配管構成体３の直管１を挟持
し得るようになっている。At the position where the fastening bolt 28 abuts on the end of the long hole 15 on the side opposite to the piping structure, the straight pipe 1 of the piping structure 3 can be clamped by the clamp member 18 described later. Has become.

【００２５】荷重支持部材１６は、前記の各スライドプ
レート１４，１４の逆止弁２寄りの端部近傍にそれぞれ
立設され、配管構成体３の管軸２９と略同じ高さ位置に
管軸２９に平行する方向へ延びる角溝１７を有し、各ス
ライドプレート１４，１４を配管構成体３に平行する位
置にセットしたときに、前記の各角溝１７，１７が配管
構成体３を挟んで互いに対峙するように形成されてい
る。The load supporting members 16 are erected near the ends of the slide plates 14, 14 near the check valve 2, respectively, and are positioned at substantially the same height as the pipe shaft 29 of the piping structure 3. 29 has a square groove 17 extending in a direction parallel to 29. When each slide plate 14, 14 is set at a position parallel to the pipe structure 3, the square grooves 17, 17 sandwich the pipe structure 3. Are formed so as to face each other.

【００２６】クランプ部材１８は、配管構成体３の直管
１の逆止弁２寄り部分を左右から挟持し得るように縦方
向に分割され、直管１に直交する水平方向の左右両側に
延び且つ前記の各荷重支持部材１６，１６のそれぞれの
角溝１７に緩く嵌合し得る変位伝達部材１９を備えてい
る。The clamp member 18 is divided vertically so as to be able to sandwich the portion of the pipe structure 3 near the check valve 2 of the straight pipe 1 from the left and right, and extends to the left and right sides in the horizontal direction orthogonal to the straight pipe 1. Further, there is provided a displacement transmitting member 19 which can be loosely fitted into each of the square grooves 17 of the load supporting members 16 and 16.

【００２７】管軸方向変位手段２０は、前記の各スライ
ドプレート１４，１４の反逆止弁側端部近傍にそれぞれ
立設され且つ配管構成体３の管軸２９と略同じ高さ位置
に、管軸２９に平行する方向へ通るように穿設されため
ねじ孔２１を有するブラケット２２を有し、該めねじ孔
２１に螺合して管軸２９に平行する方向に延び且つ先端
部が前記の変位伝達部材１９に捻転自在に連結されたね
じ軸２３を有する。The pipe axial displacement means 20 is provided upright in the vicinity of the non-return valve side end of each of the slide plates 14, 14, and is positioned at substantially the same height as the pipe shaft 29 of the pipe structure 3. It has a bracket 22 having a screw hole 21 so as to be bored so as to pass in a direction parallel to the shaft 29. The bracket 22 is screwed into the female screw hole 21 to extend in a direction parallel to the pipe shaft 29, and a tip portion is formed as described above. It has a screw shaft 23 that is connected to the displacement transmitting member 19 in a freely twistable manner.

【００２８】ねじ軸２３の端部には工具係合部２４が削
設されており、該工具係合部２４にスパナなどの工具を
係合してねじ軸２３を捻転させると、ねじ軸２３はめね
じ孔２１に対して進退し、該ねじ軸２３の先端に連結さ
れた変位伝達部材１９及びクランプ部材１８を介して該
クランプ部材１８によって挟持されている配管構成体３
を管軸２９方向に移動させ得るように形成されている。At the end of the screw shaft 23, a tool engaging portion 24 is cut and cut. When a tool such as a wrench is engaged with the tool engaging portion 24 to twist the screw shaft 23, the screw shaft 23 is rotated. Piping component 3 which is advanced / retracted with respect to female screw hole 21 and is clamped by clamp member 18 via displacement transmitting member 19 and clamp member 18 connected to the tip of screw shaft 23.
Is formed so as to be movable in the direction of the tube axis 29.

【００２９】管径方向変位手段２５は、図３に示すよう
に、荷重支持部材１６の角溝１７の背面から管径方向に
挿通された押ねじ２６とロックナット２７とによって形
成されており、該押ねじ２６を捻転することによって、
角溝１７に嵌合されている変位伝達部材１９を管径方向
に押圧し、該変位伝達部材１９及びクランプ部材１８を
介して、クランプ部材１８によって挟持した配管構成体
３の管軸２９に直交する水平方向の芯出しを行ない得る
ようになっている。As shown in FIG. 3, the pipe diameter direction displacement means 25 is formed by a push screw 26 and a lock nut 27 inserted in the pipe diameter direction from the back surface of the square groove 17 of the load support member 16. By twisting the set screw 26,
The displacement transmitting member 19 fitted in the square groove 17 is pressed in the pipe radial direction, and is orthogonal to the pipe shaft 29 of the piping structure 3 held by the clamp member 18 via the displacement transmitting member 19 and the clamp member 18. Horizontal centering can be performed.

【００３０】以下、原子炉圧力容器の点検を行なうに際
して移動させるべき上蓋４の上部に連結されたエルボ管
６に嵌合構造のフランジ９，１０を介して接続されてい
る配管構成体３を、エルボ管６から着脱する場合におけ
る配管フランジ着脱装置の作動について説明する。The piping structure 3 connected to the elbow pipe 6 connected to the upper part of the upper lid 4 to be moved when inspecting the reactor pressure vessel via the flanges 9 and 10 of the fitting structure will be described below. The operation of the pipe flange attaching / detaching device when attaching / detaching from the elbow pipe 6 will be described.

【００３１】断熱材３０，３１を取り除いた後、スライ
ドプレート１４をベースプレート１１に固定する締結ボ
ルト２８を僅かに緩めてからスライドプレート１４を配
管構成体３に近接する方向へ移動し締結ボルト２８が長
孔１５の端部に当接する位置で止め、締結ボルト２８を
締め付けてスライドプレート１４をベースプレート１１
に固定する。After the heat insulating materials 30 and 31 are removed, the fastening bolts 28 for fixing the slide plate 14 to the base plate 11 are slightly loosened, and then the slide plate 14 is moved in the direction approaching the piping structure 3 so that the fastening bolts 28 are removed. The slide plate 14 is stopped at a position where it comes into contact with the end of the elongated hole 15, and the slide plate 14 is
Fixed to.

【００３２】次いで、管径方向変位手段２５の押ねじ２
６を捻転してクランプ部材１８を管径方向へ微小変位さ
せることにより、配管構成体３の直管１の逆止弁２近傍
部分に対してクランプ部材１８の左右両側の内径面が略
均等に当接するように調整してから、該クランプ部材１
８を直管１に締結する。Next, the set screw 2 of the pipe radial displacement means 25
6 is twisted to slightly displace the clamp member 18 in the radial direction of the pipe, so that the inner diameter surfaces on the right and left sides of the clamp member 18 with respect to the portion near the check valve 2 of the straight pipe 1 of the pipe structure 3 are substantially uniform. After adjusting so as to abut, the clamp member 1
8 is fastened to the straight pipe 1.

【００３３】かくして、当該配管構成体３の直管１の逆
止弁２近傍部分を、クランプ部材１８、変位伝達部材１
９、荷重支持部材１６、スライドプレート１４及びベー
スプレート１１を介して固定構造物１２によって支持し
た後、逆止弁２とエルボ管６とを接続しているそれぞれ
のフランジ９，１０のボルト締結を解放する。Thus, the portion of the pipe structure 3 near the check valve 2 of the straight pipe 1 is connected to the clamp member 18 and the displacement transmitting member 1.
9. After being supported by the fixed structure 12 via the load supporting member 16, the slide plate 14, and the base plate 11, the bolts of the respective flanges 9, 10 connecting the check valve 2 and the elbow pipe 6 are released. I do.

【００３４】その後、管軸方向変位手段２０のねじ軸２
３の工具係合部２４にスパナ等の工具を係合し且つねじ
軸２３がブラケット２２に対して反逆止弁方向へ変位す
る方向にねじ軸２３を捻転することによって、逆止弁２
のフランジ１０をエルボ管６のフランジ９から離隔さ
せ、両フランジ９，１０の嵌合を解除する。Thereafter, the screw shaft 2 of the tube axial displacement means 20
3 by engaging a tool such as a wrench with the tool engagement portion 24 and twisting the screw shaft 23 in a direction in which the screw shaft 23 is displaced in the direction of the non-return valve with respect to the bracket 22.
The flange 10 is separated from the flange 9 of the elbow pipe 6, and the engagement between the flanges 9 and 10 is released.

【００３５】更に、配管構成体３の図示されていない基
端と他の部材との締結を解除したうえ、配管構成体３を
仮置き場所へ移送して、上蓋４の開放作業を行なう。Further, the fastening between the base end (not shown) of the piping assembly 3 and other members is released, and the piping assembly 3 is transferred to a temporary storage location to open the upper lid 4.

【００３６】また、クランプ部材１８、変位伝達部材１
９、荷重支持部材１６、スライドプレート１４及びベー
スプレート１１を介して固定構造物１２によって、配管
構成体３の直管１の逆止弁２近傍部分を支持した配管構
成体３を、フランジ９，１０を介してエルボ管６に連結
する場合は、管軸方向変位手段２０のねじ軸２３の工具
係合部２４にスパナ等の工具を係合し且つねじ軸２３が
ブラケット２２に対して逆止弁２方向へ変位する方向に
ねじ軸２３を捻転することによって、逆止弁２のフラン
ジ１０をエルボ管６のフランジ９へ近接させる。The clamp member 18, the displacement transmitting member 1
9, the pipe structure 3, which supports the portion of the pipe structure 3 near the check valve 2 of the straight pipe 1 by the fixed structure 12 via the load supporting member 16, the slide plate 14, and the base plate 11, is connected to the flanges 9, 10 Is connected to the elbow pipe 6 via a tool, a tool such as a wrench is engaged with the tool engaging portion 24 of the screw shaft 23 of the pipe axial displacement means 20 and the screw shaft 23 is The flange 10 of the check valve 2 is brought close to the flange 9 of the elbow pipe 6 by twisting the screw shaft 23 in the direction of displacement in two directions.

【００３７】次いで、管径方向変位手段２５の押ねじ２
６を捻転してクランプ部材１８を管径方向へ微小変位さ
せることにより、エルボ管６のフランジ９と配管構成体
３の先端の逆止弁２のフランジ１０との軸芯の位置合わ
せを行なう。Next, the set screw 2 of the pipe diameter direction displacement means 25
By twisting the tube 6 and minutely displacing the clamp member 18 in the pipe diameter direction, the axial center of the flange 9 of the elbow pipe 6 and the flange 10 of the check valve 2 at the end of the pipe structure 3 are aligned.

【００３８】その後、更にねじ軸２３がブラケット２２
に対して逆止弁方向へ変位する方向にねじ軸２３を捻転
することによって、逆止弁２のフランジ１０をエルボ管
６のフランジ９に嵌合させた後、両フランジ９，１０を
締結することにより、配管構成体３をエルボ管６に接続
する。Thereafter, the screw shaft 23 is further connected to the bracket 22.
By screwing the screw shaft 23 in the direction displaced in the check valve direction, the flange 10 of the check valve 2 is fitted to the flange 9 of the elbow pipe 6, and then the two flanges 9, 10 are fastened. Thereby, the piping structure 3 is connected to the elbow pipe 6.

【００３９】配管構成体３をエルボ管６に接続したあと
は、クランプ部材１８の締結を開放して配管構成体３の
直管１からクランプ部材１８を解除し、スライドプレー
ト１４の締結ボルト２８を緩め、スライドプレート１４
を反配管構成体方向へ移動させることによって、配管フ
ランジ着脱装置を配管構成体３から離隔させておく。After the pipe structure 3 is connected to the elbow pipe 6, the fastening of the clamp member 18 is released to release the clamp member 18 from the straight pipe 1 of the pipe structure 3, and the fastening bolt 28 of the slide plate 14 is removed. Loosen slide plate 14
Is moved in the direction opposite to the piping structure so that the piping flange attaching / detaching device is separated from the piping structure 3.

【００４０】このように、図１から図３に示す配管フラ
ンジ着脱装置では、配管構成体３の接続端近傍部分を、
クランプ部材１８、変位伝達部材１９、荷重支持部材１
６、スライドプレート１４、及びベースプレート１１を
介して固定構造物１２に支持したうえ、配管構成体３を
径方向に挾持するクランプ部材１８を、管軸方向変位手
段２０により変位伝達部材１９を介してエルボ管６から
離隔する方向へ変位させるので、フランジ９，１０を損
傷させることなく該フランジ９，１０の嵌合を解除する
ことができる。As described above, in the piping flange attaching / detaching device shown in FIGS. 1 to 3, the portion near the connecting end of the piping structure 3 is
Clamp member 18, Displacement transmission member 19, Load support member 1
6, the clamp member 18 which is supported on the fixed structure 12 via the slide plate 14 and the base plate 11 and which holds the piping structure 3 in the radial direction via the displacement transmission member 19 by the tube axial displacement means 20. Since the displacement is made in the direction away from the elbow pipe 6, the fitting of the flanges 9, 10 can be released without damaging the flanges 9, 10.

【００４１】また、上記のクランプ部材１８を、管径方
向変位手段２５により変位伝達部材１９を介して管径方
向へ変位させるので、フランジ９，１０を嵌合させる際
の両フランジ９，１０の位置合せを容易に行なうことが
できる。Further, since the clamp member 18 is displaced in the pipe diameter direction via the displacement transmitting member 19 by the pipe diameter direction displacement means 25, the two flanges 9 and 10 when fitting the flanges 9 and 10 are fitted. Positioning can be easily performed.

【００４２】更に、スライドプレート１４を、配管構成
体３に対して離隔させることにより、該配管構成体３を
断熱材３１により容易に被覆することができる。Further, by separating the slide plate 14 from the piping structure 3, the piping structure 3 can be easily covered with the heat insulating material 31.

【００４３】なお、本発明の配管フランジ着脱装置は上
述した実施の形態のみに限定されるものではなく、本発
明の要旨を逸脱しない範囲内において種々変更を加え得
ることは勿論である。It should be noted that the piping flange attaching / detaching device of the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

【００４４】[0044]

【発明の効果】以上述べたように、本発明の配管フラン
ジ着脱装置によれば、下記のような種々の優れた効果を
奏し得る。As described above, according to the piping flange attaching / detaching apparatus of the present invention, the following various excellent effects can be obtained.

【００４５】（１）本発明の請求項１あるいは請求項２
に記載した配管フランジ着脱装置のいずれにおいても、
配管構成体の接続端近傍部分を、クランプ部材、変位伝
達部材、荷重支持部材、移動部材、及び基盤を介して固
定構造物に支持したうえ、配管構成体の接続端近傍部分
を径方向に挾持するクランプ部材を、管軸方向変位手段
により変位伝達部材を介して点検時に移動させるべき対
象部材から離隔する方向へ変位させるので、フランジを
損傷させることなく該フランジの嵌合を解除することが
できる。(1) Claim 1 or Claim 2 of the present invention
In any of the pipe flange attachment and detachment devices described in
The portion near the connection end of the pipe structure is supported by a fixed structure via a clamp member, a displacement transmitting member, a load support member, a moving member, and a base, and the portion near the connection end of the pipe structure is radially clamped. The clamp member to be moved is displaced in the direction away from the target member to be moved at the time of inspection via the displacement transmitting member by the tube axial direction displacement means, so that the fitting of the flange can be released without damaging the flange. .

【００４６】（２）また、移動部材を配管構成体に対し
て離隔させることにより、配管フランジ着脱装置全体を
固定構造物から取り外すことなく、配管構成体を断熱材
で被覆することができる。(2) By separating the moving member from the piping structure, the piping structure can be covered with the heat insulating material without removing the entire piping flange attaching / detaching device from the fixed structure.

【００４７】（３）本発明の請求項２に記載した配管フ
ランジ着脱装置においては、配管構成体の接続端近傍部
分を径方向に挾持するクランプ部材を、管径方向変位手
段により変位伝達部材を介して管径方向へ変位させるの
で、フランジを嵌合させる際の両フランジの位置合せを
容易に行なうことができる。(3) In the pipe flange attaching / detaching apparatus according to the second aspect of the present invention, the clamp member which radially clamps a portion near the connection end of the pipe structure is connected to the displacement transmitting member by the pipe radial direction displacement means. Since it is displaced in the radial direction of the pipe through the pipe, the positioning of both flanges when fitting the flanges can be easily performed.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の配管フランジ着脱装置の実施の形態の
一例の斜視図である。FIG. 1 is a perspective view of an example of an embodiment of a pipe flange attaching / detaching apparatus of the present invention.

【図２】図１に関連する配管フランジ着脱装置の平面図
である。FIG. 2 is a plan view of the piping flange attaching / detaching device related to FIG. 1;

【図３】図２のＩＩＩ−ＩＩＩ矢視図である。FIG. 3 is a view taken in the direction of arrows III-III in FIG. 2;

【図４】原子炉圧力容器に付帯するスプレーノズルの給
水配管の一例の斜視図である。FIG. 4 is a perspective view of an example of a water supply pipe of a spray nozzle attached to a reactor pressure vessel.

【符号の説明】[Explanation of symbols]

３ 配管構成体 ６ エルボ管（対象部材） ９ フランジ １０ フランジ １１ ベースプレート（基盤） １２ 固定構造物 １４ スライドプレート（移動部材） １６ 荷重支持部材 １８ クランプ部材 １９ 変位伝達部材 ２０ 管軸方向変位手段 ２５ 管径方向変位手段 Reference Signs List 3 piping structure 6 elbow pipe (target member) 9 flange 10 flange 11 base plate (base) 12 fixed structure 14 slide plate (moving member) 16 load supporting member 18 clamp member 19 displacement transmitting member 20 pipe axial displacement means 25 pipe Radial displacement means

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 点検時に移動させるべき対象部材に嵌合
構造のフランジを介して接続された配管構成体の接続端
近傍部分を径方向に挟持し得るクランプ部材と、該クラ
ンプ部材に固着した変位伝達部材と、配管構成体の接続
端近傍部分に隣接して設置され且つ固定構造物に固着し
た基盤と、該基盤に配管構成体に対して近接離隔し得る
ように設けた移動部材と、変位伝達部材を支持し且つ該
変位伝達部材を配管構成体の管軸方向へ案内し得るよう
移動部材に取り付けた荷重支持部材と、変位伝達部材を
配管構成体の管軸方向に沿って前記の対象部材から離隔
するように変位させる管軸方向変位手段とを備えてなる
ことを特徴とする配管フランジ着脱装置。1. A clamp member capable of radially clamping a portion near a connection end of a piping structure connected to a target member to be moved during inspection via a flange of a fitting structure, and a displacement fixed to the clamp member. A transmission member, a base installed adjacent to a portion near the connection end of the pipe structure and fixed to a fixed structure, a moving member provided on the base so as to be able to approach and separate from the pipe structure, A load support member mounted on a moving member for supporting the transmission member and guiding the displacement transmission member in the pipe axis direction of the piping structure; and the object supporting the displacement transmission member along the pipe axis direction of the piping structure. A pipe axial direction displacing means for displacing the pipe flange so as to be separated from the member. 【請求項２】 変位伝達部材を荷重支持部材に対して配
管構成体の管径方向に変位させ得る管径方向変位手段が
設けられた請求項１に記載の配管フランジ着脱装置。2. The pipe flange attaching / detaching apparatus according to claim 1, further comprising a pipe diameter direction displacing means capable of displacing the displacement transmitting member with respect to the load supporting member in the pipe diameter direction of the pipe structure.
JP6122698A 1998-03-12 1998-03-12 Piping flange mounting demounting device Pending JPH11257538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6122698A JPH11257538A (en) 1998-03-12 1998-03-12 Piping flange mounting demounting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6122698A JPH11257538A (en) 1998-03-12 1998-03-12 Piping flange mounting demounting device

Publications (1)

Publication Number Publication Date
JPH11257538A true JPH11257538A (en) 1999-09-21

Family

ID=13165097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6122698A Pending JPH11257538A (en) 1998-03-12 1998-03-12 Piping flange mounting demounting device

Country Status (1)

Country Link
JP (1) JPH11257538A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103612131A (en) * 2013-11-29 2014-03-05 芜湖通和汽车管路***有限公司 Cutting tool of oil suction pipe of engine sump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103612131A (en) * 2013-11-29 2014-03-05 芜湖通和汽车管路***有限公司 Cutting tool of oil suction pipe of engine sump

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