JP2019074124A - Control fluid installation method - Google Patents

Control fluid installation method Download PDF

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JP2019074124A
JP2019074124A JP2017199700A JP2017199700A JP2019074124A JP 2019074124 A JP2019074124 A JP 2019074124A JP 2017199700 A JP2017199700 A JP 2017199700A JP 2017199700 A JP2017199700 A JP 2017199700A JP 2019074124 A JP2019074124 A JP 2019074124A
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valve
control fluid
lid
housing
fluid
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JP7025882B2 (en
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聡 玉田
Satoshi Tamada
聡 玉田
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Cosmo Koki Co Ltd
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Abstract

To provide a control fluid installation method capable of reducing burden on a crane.SOLUTION: A control fluid installation method is a method for installing control fluid 10 into a housing 2 in an uninterrupted state, wherein the control fluid 10 comprises: body parts 11, 12, 13 configured to control a flow passage, using the housing 2 hermetically attached to a fluid pipe 1, a work valve 4 attached to an opening part 2a of the housing 2 and capable of opening/closing the inside of the housing 2, and an insertion machine 8 attached to the work valve 4; and a lid body part 14 configured to seal the opening part 2a of the housing 2. The control fluid installation method comprises hermetically attaching the housing 2 to the fluid pipe 1 and attaching the work valve 4 to the housing 2, then installing the body parts 11, 12, 13 to the work valve 4, and attaching the lid body part 14 to the body parts 11, 12, 13 installed to the work valve 4.SELECTED DRAWING: Figure 14

Description

本発明は、不断流状態で流体管を密封する筐体内に制流体を設置する制流体の設置方法に関する。   The present invention relates to a method of installing a control fluid in a housing that seals a fluid pipe in a non-stop flow state.

流体管路に弁やプラグ等の制流体を配置する場合には、流体管路を構成する流体管の一部を切断し、その切断した箇所に制流体を設置することが一般的に行われている。流体管を切断する切断方法として、流体管に対し密封状に筐体を取付け、該筐体の開口部に筐体内を開閉可能な作業弁を取付けるとともに、作業弁にカッタと駆動部とを有する切断機を設置し、作業弁を開けた状態で駆動部によりカッタを進行させて筐体内において不断流状態で流体管の一部を切断することが知られている。   When arranging a control fluid such as a valve or a plug in a fluid line, it is generally performed to cut a part of a fluid pipe that constitutes the fluid line and install the control fluid at the cut portion. ing. As a cutting method for cutting the fluid pipe, a housing is attached to the fluid pipe in a sealing manner, a work valve capable of opening and closing the inside of the housing is attached to the opening of the housing, and the work valve has a cutter and a drive unit. It is known to install a cutting machine and advance a cutter by a drive unit in a state in which a work valve is opened to cut a part of a fluid pipe in a non-continuous flow state in a housing.

また、上記のような方法で流体管が切断された箇所に制流体を設置する方法として、例えば、特許文献1に示されるように、筐体と、作業弁と、作業弁に取付けられる挿入機と、を用いる制流体設置方法があり、作業弁を開放した状態で挿入機により制流体を進行させることにより筐体内に不断流状態で制流体を設置するようになっている。このような制流体設置方法にあっては、筐体、作業弁、制流体等の各部材をクレーンにより吊り下げて設置位置まで運搬し、流体管に組み立てるようになっている(例えば、特許文献1参照)。   Moreover, as a method of installing a control fluid in the place where the fluid pipe was cut by the above method, for example, as shown in Patent Document 1, an insertion machine attached to a housing, a work valve, and a work valve The control fluid is installed using a control fluid in a state where the work valve is opened, and the control fluid is advanced by the insertion machine to install the control fluid in a non-continuous flow state in the housing. In such a control fluid installation method, each member such as a housing, a work valve, a control fluid, etc. is suspended by a crane, transported to the installation position, and assembled into a fluid pipe (for example, patent document 1).

特開2013−108594号公報(第11頁、第9図)JP, 2013-108594, A (page 11, FIG. 9)

しかしながら、特許文献1のような制流体の設置にあっては、特に流体管の管径が大きい場合には、当該流体管を外嵌する筐体、作業弁、そして筐体内に設置される制流体も大型化することから、吊上能力の高い大型のクレーンを用意する必要があり、クレーンの可動範囲や設置スペースが大きくなるため、制流体の設置作業に大きなスペースを確保しなければならないという問題があった。特に、特許文献1のように切断機としてホールソーを用いる場合には、流体管の外径よりも大径のホールソーを要するため、これに伴い当該ホールソーを収容する筐体やこの筐体内に密封状態で設置する制流体の重量が嵩み、クレーンの大型化が避けられなかった。   However, in the case of the installation of the control fluid as disclosed in Patent Document 1, especially when the diameter of the fluid pipe is large, the housing for externally fitting the fluid pipe, the work valve, and the control installed in the housing As the fluid size also increases, it is necessary to prepare a large crane with a high lifting capacity, and the movable range and installation space of the crane become large, so a large space must be secured for the control fluid installation work. There was a problem. In particular, when using a hole saw as a cutting machine as in Patent Document 1, a hole saw larger in diameter than the outer diameter of the fluid pipe is required, and accordingly, a housing for housing the hole saw and a sealed state in this housing. The weight of the control fluid to be installed was increased, and the enlargement of the crane could not be avoided.

本発明は、このような問題点に着目してなされたもので、クレーンへの負荷を軽減できる制流体の設置方法を提供することを目的とする。   The present invention has been made in view of such problems, and an object of the present invention is to provide a control fluid installation method capable of reducing the load on a crane.

前記課題を解決するために、本発明の制流体の設置方法は、
流体管に対し密封状に取付けられる筐体と、該筐体の開口部に取付けられ該筐体の内部を開閉可能な作業弁と、該作業弁に取付けられる挿入機とを用い、流路を制御する本体部と前記筐体の開口部を密封する蓋体部とからなる制流体を、前記筐体内に不断流状態で設置する制流体の設置方法であって、
前記流体管に前記筐体を密封状に取付けるとともに、前記筐体に前記作業弁を取付けた後、前記作業弁に前記制流体の前記本体部を設置し、
前記作業弁に設置された前記本体部に前記蓋体部を取付けることを特徴としている。
この特徴によれば、他の部材に比べて重量の大きな制流体の本体部と蓋体部とを別々に設置するため、制流体を設置するためのクレーンへの負荷を軽減できるため、該クレーンを小型化することができる。
In order to solve the above-mentioned subject, the installation method of control fluid of the present invention,
A flow path is formed by using a housing hermetically attached to a fluid pipe, a work valve attached to an opening of the housing and capable of opening and closing the inside of the housing, and an inserter attached to the work valve. It is an installation method of the control fluid which installs the control fluid which consists of the main part to control and the lid which seals the opening of the above-mentioned case in the inside of the above-mentioned case in non-stop flow state,
The casing is attached to the fluid pipe in a sealing manner, and the work valve is attached to the casing, and then the body portion of the control fluid is installed on the work valve;
The lid portion may be attached to the main body portion installed in the work valve.
According to this feature, since the main portion and the lid portion of the control fluid having a larger weight than the other members are separately installed, the load on the crane for installing the control fluid can be reduced. Can be miniaturized.

前記作業弁に前記制流体を収容可能な筒状体を設置した後、該筒状体に前記本体部を設置し、前記筒状体に設置された前記本体部に前記蓋体部を取付けることを特徴としている。
この特徴によれば、作業弁に設置した筒状体を用いて、制流体を位置決めしながら精度よく設置できる。
After installing a cylindrical body capable of containing the control fluid in the work valve, the main body portion is installed in the cylindrical body, and the lid body portion is attached to the main body portion installed in the cylindrical body. It is characterized by
According to this feature, it is possible to accurately set the control fluid while positioning the control fluid by using the cylindrical body installed in the work valve.

前記本体部を前記筒状体に設けられた係止部に係止させ、前記係止部に係止された前記本体部に前記蓋体部を取付けることを特徴としている。
この特徴によれば、制流体の本体部を筒状体の係止部に係止させた安定状態で、この本体部に蓋体部を精度高く取付けることができる。
The main body portion is locked to a locking portion provided on the cylindrical body, and the lid portion is attached to the main body portion locked to the locking portion.
According to this feature, the lid can be attached to the main body with high accuracy in a stable state in which the main body of the control fluid is locked to the locking portion of the cylindrical body.

前記制流体を前記筒状体に設けられた保持部に保持させ、前記保持部に保持された前記制流体に前記挿入機を連結することを特徴としている。
この特徴によれば、制流体を筒状体の保持部に保持させた安定状態で、この制流体に挿入機を連結できるため、この挿入機によって制流体を筐体内の所期の位置に設置できる。
The control fluid is held by a holding portion provided on the cylindrical body, and the insertion machine is connected to the control fluid held by the holding portion.
According to this feature, since the insertion machine can be connected to the control fluid in a stable state where the control fluid is held by the holding portion of the cylindrical body, the control fluid is installed at the desired position in the housing by the insertion machine it can.

前記挿入機と前記制流体との間にスペーサを配置し、該スペーサに載置された前記挿入機に前記制流体を連結することを特徴としている。
この特徴によれば、挿入機の荷重をスペーサに預けた状態で制流体に連結できるため、連結作業が容易となるばかりか、クレーンの負荷を軽減できる。
A spacer is disposed between the insertion machine and the control fluid, and the control fluid is connected to the insertion machine placed on the spacer.
According to this feature, since the load of the inserter can be connected to the control fluid in a state of being deposited on the spacer, not only the connecting operation becomes easy, but also the load on the crane can be reduced.

実施例における筐体に作業弁の弁箱を取付ける様子を示す側断面図である。It is a sectional side view which shows a mode that the valve box of a working valve is attached to the housing | casing in an Example. 弁箱に弁体及び弁棒を取付ける様子を示す側断面図である。It is a sectional side view which shows a mode that a valve body and a valve stem are attached to a valve box. 切断機を設置する工程において、作業弁に取付フランジ筒を取付ける様子を示す側断面図である。It is a sectional side view which shows a mode that a mounting flange cylinder is attached to a work valve in the process of installing a cutting machine. 切断機を設置する工程において、取付フランジ筒にカッタ及び蓋体を取付ける様子を示す側断面図である。It is a sectional side view which shows a mode that a cutter and a cover body are attached to a mounting flange cylinder in the process of installing a cutting machine. 切断機を設置する工程において、取付フランジ筒に蓋体を固定した様子を示す側断面図である。It is a sectional side view which shows a mode that the cover body was fixed to the attachment flange cylinder in the process of installing a cutting machine. 駆動機構の構造を示す説明図である。It is an explanatory view showing the structure of a drive mechanism. 切断機を設置する工程において、軸部材とカッタとを接続した様子を示す側断面図である。It is a sectional side view which shows a mode that the shaft member and the cutter were connected in the process of installing a cutting machine. 切断機を設置する工程において、ジャッキ及び固定冶具を取外す様子を示す側断面図である。It is a sectional side view which shows a mode that a jack and a fixing jig are removed in the process of installing a cutting machine. 切断機を設置する工程において、駆動機構のケース部と蓋体とを接続した様子を示す側断面図である。It is a sectional side view which shows a mode that the case part and lid of a drive mechanism were connected in the process of installing a cutting machine. 切断機により流体管を切断する様子を示す側断面図である。It is a side sectional view showing a situation that a fluid pipe is cut with a cutting machine. 流体管の切片を回収した様子を示す側断面図である。It is a side sectional view showing a situation where a section of a fluid pipe was collected. 弁導入機を設置する工程において、円筒部材を作業弁に取付ける様子を示す側断面図である。It is a sectional side view which shows a mode that a cylindrical member is attached to a work valve in the process of installing a valve introducer. 弁導入機を設置する工程において、バタフライ弁における仕切壁、開閉軸及び弁体を円筒部材に取付けた様子を示す側断面図である。It is a sectional side view which shows a mode that the partition wall in the butterfly valve, the opening / closing axis, and the valve body were attached to the cylindrical member in the process of installing a valve introducer. 弁導入機を設置する工程において、上蓋部を取付けてバタフライ弁を構成した様子を示す側断面図である。It is a sectional side view which shows a mode that the upper lid part was attached and the butterfly valve was comprised in the process of installing a valve introducer. 弁導入機を設置する工程において、円筒部材に取付フランジ筒を取付けた様子を示す説明図である。It is explanatory drawing which shows a mode that the attachment flange cylinder was attached to the cylindrical member in the process of installing a valve introducer. 弁導入機を設置する工程において、弁吊金具及び蓋体を取付ける様子を示す側断面図である。It is a sectional side view which shows a mode that a valve hanger and a lid are attached in the process of installing a valve introducer. 弁導入機を設置する工程において、取付フランジ筒に蓋体を固定した様子を示す側断面図である。It is a sectional side view which shows a mode that the cover body was fixed to the attachment flange cylinder in the process of installing a valve introducer. 弁導入機を設置する工程において、軸部材と弁吊金具とを接続した様子を示す側断面図である。It is a sectional side view which shows a mode that the shaft member and the valve suspension metal fitting were connected in the process of installing a valve introducer. 弁導入機を設置する工程において、ジャッキ及び固定冶具を取外す様子を示す側断面図である。It is a sectional side view which shows a mode that a jack and a fixing jig are removed in the process of installing a valve introducer. 弁導入機を設置する工程において、バタフライ弁と弁吊金具とを接続した様子を示す側断面図である。It is a sectional side view which shows a mode that the butterfly valve and the valve suspension metal fitting were connected in the process of installing a valve introducer. 弁導入機によりバタフライ弁を流体管の切断箇所に設置した様子を示す側断面図である。It is a sectional side view which shows a mode that the butterfly valve was installed in the cut part of the fluid pipe by the valve introducer. 弁吊金具を円筒部材及び取付フランジ筒内に引き上げた様子を示す側断面図である。It is a sectional side view which shows a mode that the valve-hanging metal fitting was pulled up in a cylindrical member and a mounting flange cylinder. 変形例1における作業弁を示す側断面図である。It is a side sectional view showing the operation valve in modification 1. 変形例2における作業弁を示す側断面図である。FIG. 10 is a side cross sectional view showing a work valve in a second modification. 変形例3における切断機を示す側断面図である。FIG. 10 is a side cross sectional view showing a cutting machine in a modification 3; (a)は変形例4における切断機を示す側断面図、(b)はA矢視図、(c)はB−B断面図である。(A) is a side sectional view which shows the cutting machine in the modification 4, (b) is an A arrow line view, (c) is a BB sectional view.

本発明に係る制流体の設置方法を実施するための形態を実施例に基づいて以下に説明する。   A mode for carrying out a method of installing a control fluid according to the present invention will be described below based on examples.

実施例においては、流路構成部材を構成する既設の流体管1の所定箇所を切断し、その切断箇所にバタフライ弁10(制流体)を設置するまでの一連の流れを図1から図26を参照して説明する。   In the embodiment, a series of flow from cutting a predetermined portion of the existing fluid pipe 1 constituting the flow path constituting member to installing the butterfly valve 10 (control fluid) at the cutting portion is shown in FIG. 1 to FIG. Refer to the description.

図1に示されるように、地中に埋設された流体管1の所定箇所の周囲を掘削し、上方に開口する分岐部2aを有する2分割構造の筐体2を密封状に囲繞する。尚、流体管1内の流体は、例えば、上水や工業用水、下水等の他、ガスやガスと液体との気液混合体であっても構わない。更に尚、筐体2は、本実施例では2分割構造であるが、他の複数分割構造であってもよく、分割筐体同士の接合は、溶接若しくはパッキンを介しボルトにより取付けても構わない。   As shown in FIG. 1, the periphery of a predetermined portion of a fluid pipe 1 embedded in the ground is excavated, and a casing 2 of a two-divided structure having a branched portion 2a opened upward is sealingly enclosed. The fluid in the fluid pipe 1 may be, for example, gas or liquid mixture of gas or liquid other than fresh water, industrial water, sewage and the like. Furthermore, although the housing 2 is divided into two parts in this embodiment, it may be divided into a plurality of other parts. Bonding of the divided housings may be performed by welding or using a bolt via a packing. .

流体管1は、鋼管であって、断面視略円形状に形成されている。尚、本発明に係る流体管は、ダクタイル鋳鉄、その他鋳鉄、その他の金属製、あるいはコンクリート製、塩化ビニール製、ポリエチレン製若しくはポリオレフィン製等であってもよい。さらに尚、流体管の内周面はエポキシ樹脂層、モルタル、めっき等により被覆されてもよく、若しくは適宜の材料を粉体塗装により流体管の内周面に被覆してもよい。   The fluid pipe 1 is a steel pipe, and is formed in a substantially circular shape in cross section. The fluid pipe according to the present invention may be ductile cast iron, other cast irons, other metals, concrete, vinyl chloride, polyethylene, polyolefin or the like. Furthermore, the inner peripheral surface of the fluid pipe may be coated with an epoxy resin layer, mortar, plating or the like, or an appropriate material may be coated on the inner peripheral surface of the fluid pipe by powder coating.

また、流体管1に筐体2を密封状に取付ける際には、筐体2の下方にコンクリート基礎9,9を形成し、筐体2周辺の重量を支持して流体管1の折れ曲がり等を防止する。尚、筐体2や後述する切断機5及び弁導入機6の重量を支持できるものであれば、コンクリート基礎9,9に限られず、ジャッキなどを用いてもよい。   In addition, when the housing 2 is attached to the fluid pipe 1 in a sealing manner, concrete foundations 9 and 9 are formed below the housing 2 to support the weight around the housing 2 so that the fluid pipe 1 is bent or the like. To prevent. In addition, as long as it can support the weight of the housing | casing 2, the cutting machine 5 mentioned later, and the valve introducer machine 6, it is not restricted to the concrete foundations 9, 9, You may use a jack etc.

次いで、筐体2の分岐部2a(開口部)に分岐部2aの開口を閉塞可能な作業弁4を取付ける工程について説明する。先ず、図1に示されるように、作業弁4を構成する弁箱41(第1の分割体)を上方から図示しないクレーンに吊支されるフックを備えた吊り具C及びワイヤWにより吊持して分岐部2aのフランジ2b上に載置し、フランジ2b上で弁箱41の位置調整をしながらフランジ2bと弁箱41とを図示しないボルトナットで固定する。なお、本実施例で使用されるクレーンは、例えば移動式のラフテレーンクレーンが好適であり、言うまでもなくその吊上能力に応じて大型化し、後述する各部材の中で最も重量の大きい部材を吊り上げ可能な仕様が、旋回半径における許容吊り上げ荷重を検討しながら選択されるものである。またクレーンの設置面積は、アウトリガー等を含めると、流体管1の掘削面積よりも広い面積を要する場合が多い。   Next, a process of attaching the work valve 4 capable of closing the opening of the branch portion 2a to the branch portion 2a (opening portion) of the housing 2 will be described. First, as shown in FIG. 1, the valve box 41 (first divided body) constituting the work valve 4 is suspended from above by a hanger C and a wire W provided with hooks that are suspended from a crane not shown. Then, the flange 2b and the valve box 41 are fixed by unshown bolt and nuts while adjusting the position of the valve box 41 on the flange 2b. The crane used in the present embodiment is preferably, for example, a mobile rough terrain crane, and it is needless to say that the crane is enlarged according to its lifting capacity, and the largest member of the members described later is lifted Possible specifications are to be chosen while considering the allowable lifting load at the turning radius. In addition, the installation area of the crane often requires an area larger than the excavated area of the fluid pipe 1 including an outrigger and the like.

尚、本実施例では、弁箱41を分岐部2aのフランジ2b上に載置した後も、安全性確保のために弁箱41にワイヤWを若干緩めた状態でクレーンに接続しているが、これに限られず、吊り具C及びワイヤWを弁箱41から取外してもよい。また、弁箱41を位置調整しやすくするために、クレーンにより弁箱41を若干吊った状態でフランジ2bに対して位置調整を行うようにしてもよい。   In this embodiment, after placing the valve box 41 on the flange 2b of the branch portion 2a, the wire W is connected to the crane in a slightly loosened state to the valve box 41 for safety reasons. However, the present invention is not limited to this, and the hanger C and the wire W may be removed from the valve box 41. Further, in order to facilitate the position adjustment of the valve box 41, the position adjustment may be performed on the flange 2b while the valve box 41 is slightly suspended by a crane.

この弁箱41は、上下方向に貫通する略筒状を成し、一方の側方に設けられた開口部41aから略水平方向に延びるスライド溝41bが形成されており、スライド溝41bの奥側(開口部41aと反対側)には、弁座部41cが形成されている。本実施例における弁箱41の重量は、本実施例では略4500kgとなっている。尚、フランジ2bと弁箱41との間には、図示しないOリングが圧接されるため、分岐部2aと弁箱41とが密封状に接続される。以降、各部材の重量はあくまでも一例に過ぎず、適宜の重量に変更可能である。   The valve box 41 has a substantially cylindrical shape penetrating in the vertical direction, and a slide groove 41b extending in a substantially horizontal direction from an opening 41a provided on one side is formed, and the back side of the slide groove 41b is formed. A valve seat 41 c is formed on the side opposite to the opening 41 a. The weight of the valve box 41 in the present embodiment is approximately 4500 kg in the present embodiment. In addition, since the O-ring which is not shown in figure is press-contacted between the flange 2b and the valve box 41, the branch part 2a and the valve box 41 are connected in a sealing manner. Hereinafter, the weight of each member is merely an example, and can be changed to an appropriate weight.

次に、図2に示されるように、作業弁4を構成する弁体42、弁蓋43及び弁棒44(第2の分割体)をユニット化した状態で吊り具C及びワイヤWにより吊持して弁箱41の開口部41aの側方まで下降させる。そして、この吊持状態で弁箱41の側方に弁蓋43を図示しないボルトナット等により固定する(図3参照)。詳しくは、弁体42は、弁棒44により弁蓋43内に収納される位置と弁蓋43から突出する位置との間で進退可能に取付けられており、弁蓋43内に収納される位置において、弁体42の一部(弁棒44とは反対側(弁箱41側)の端部)が弁蓋43の開口部43aから突出している。   Next, as shown in FIG. 2, the valve body 42, the valve lid 43 and the valve rod 44 (second divided body) constituting the work valve 4 are suspended by the hanger C and the wire W in a unitized state Then, it is lowered to the side of the opening 41 a of the valve box 41. Then, in the suspended state, the valve cover 43 is fixed to the side of the valve box 41 by a bolt nut or the like (not shown) (see FIG. 3). Specifically, the valve body 42 is attached to be able to move forward and backward between the position stored in the valve cover 43 by the valve rod 44 and the position protruding from the valve cover 43, and the position stored in the valve cover 43 A part of the valve body 42 (an end opposite to the valve rod 44 (the end of the valve box 41)) protrudes from the opening 43 a of the valve lid 43.

弁箱41の側方に弁蓋43を固定する際には、弁蓋43の開口部43aから突出した弁体42の突出部分を弁箱41の開口部41aに挿入し、弁箱41に当接するまで弁蓋43を水平方向にスライドさせ、弁蓋43と弁箱41とを図示しないボルトナットで固定する。本実施例における弁体42、弁蓋43及び弁棒44の重量は、ユニット化した状態において、略6000kgとなっている。   When fixing the valve cover 43 to the side of the valve box 41, insert the projecting portion of the valve body 42 protruding from the opening 43 a of the valve cover 43 into the opening 41 a of the valve box 41 and contact the valve box 41. The valve cover 43 is slid in the horizontal direction until it contacts, and the valve cover 43 and the valve box 41 are fixed with a bolt and nut not shown. The weight of the valve body 42, the valve cover 43 and the valve rod 44 in this embodiment is approximately 6000 kg in a unitized state.

また、弁蓋43と弁箱41との間には、パッキンS1が周方向に亘って圧接されるため、弁蓋43と弁箱41との間の密封性を確保できる(図3の拡大部参照)。尚、本実施例では、弁蓋43側に設けられた凹溝にパッキンS1が圧入されている形態を例示したが、これに限られず、弁箱41側に凹溝を設け、該凹溝にパッキンS1が圧入されていてもよい。   Further, since the packing S1 is pressure-welded in the circumferential direction between the valve cover 43 and the valve box 41, sealing performance between the valve cover 43 and the valve box 41 can be secured (an enlarged portion in FIG. 3) reference). In the present embodiment, the embodiment is exemplified in which the packing S1 is pressed into the recessed groove provided on the valve lid 43 side, but the present invention is not limited thereto. A recessed groove is provided on the valve box 41 side. The packing S1 may be press-fitted.

尚、本実施例では、ユニット化された弁体42、弁蓋43及び弁棒44を吊り具C及びワイヤWにより吊持した状態で弁箱41に取付ける形態を例示したが、これに限られず、例えば、弁箱41の近傍に載置台を配置し、該載置台に弁体42、弁蓋43及び弁棒44を載置した状態で弁箱41に取付けるようにしてもよい。   In the present embodiment, the unitary valve body 42, the valve cover 43 and the valve rod 44 are illustrated as being attached to the valve box 41 in a state of being suspended by the hanger C and the wire W, but the invention is not limited thereto. For example, the mounting table may be disposed in the vicinity of the valve box 41, and the valve body 42, the valve cover 43, and the valve rod 44 may be mounted on the valve box 41 with the mounting table mounted thereon.

尚、本実施例では、弁蓋43と弁箱41とがボルトナットにより固定される形態を例示したが、これに限られず、例えば、万力などの別の固定手段により固定されてもよいし、溶接などで固着されていてもよい。   Although in the present embodiment, the valve cover 43 and the valve box 41 are fixed by the bolt and nut, the present invention is not limited thereto. For example, they may be fixed by another fixing means such as a vise. And may be fixed by welding or the like.

次に、作業弁4の上方に流体管1を切断するための切断機5を設置する工程について説明する。図3に示されるように、先ず、上下方向に貫通する取付フランジ筒51(筒状体)を吊り具C及びワイヤWにより吊持して弁箱41の上方まで下降させ、弁箱41の上方に取付フランジ筒51を図示しないボルトナット等により固定する。本実施例における取付フランジ筒51の重量は、略2600kgとなっている。また、取付フランジ筒51と弁箱41との間には、図示しないOリングが圧接されるため、弁箱41と取付フランジ筒51とが密封状に接続される。   Next, the process of installing the cutter 5 for cutting the fluid pipe 1 above the work valve 4 will be described. As shown in FIG. 3, first, the mounting flange cylinder 51 (cylindrical body) penetrating in the vertical direction is suspended by the hanger C and the wire W and lowered to the upper side of the valve box 41, and the upper side of the valve box 41 The mounting flange cylinder 51 is fixed to the housing with a bolt nut or the like (not shown). The weight of the mounting flange cylinder 51 in the present embodiment is approximately 2600 kg. Further, since an O-ring (not shown) is pressed between the mounting flange cylinder 51 and the valve box 41, the valve box 41 and the mounting flange cylinder 51 are connected in a sealing manner.

尚、本実施例では、取付フランジ筒51を弁箱41の上に載置した後も、安全性確保のために取付フランジ筒51にワイヤWを若干緩めた状態で図示しないクレーンに接続しているが、これに限られず、吊り具C及びワイヤWを取付フランジ筒51から取外してもよい。また、取付フランジ筒51を位置調整しやすくするために、クレーンにより取付フランジ筒51を若干吊った状態で弁箱41に対して位置調整を行うようにしてもよい。   In this embodiment, even after the mounting flange cylinder 51 is mounted on the valve box 41, the wire W is slightly loosened to the mounting flange cylinder 51 for safety, and is connected to a crane (not shown). However, the present invention is not limited to this, and the hanger C and the wire W may be removed from the mounting flange cylinder 51. Further, in order to facilitate position adjustment of the mounting flange cylinder 51, position adjustment may be performed on the valve box 41 in a state where the mounting flange cylinder 51 is slightly suspended by a crane.

次に、図4に示されるように、取付フランジ筒51に対してカッタ52を仮設置する。詳しくは、カッタ52の上方に取付フランジ筒51の蓋体53を接続した状態で吊り具C及びワイヤWにより吊持して取付フランジ筒51の上方まで下降させる。カッタ52は、周端に切断刃を備えた円筒部材52aと、この円筒部材52aに同軸に配設され穿孔刃よりも先方に突出したセンタードリル52bと、からなり、円筒部材52aとセンタードリル52bとは固定されている。また、円筒部材52aとセンタードリル52bとの上方には、上端に環状突部54aが形成されたアダプタ54が相対回転不能に取付けられている。   Next, as shown in FIG. 4, the cutter 52 is temporarily installed on the mounting flange cylinder 51. Specifically, in a state where the lid 53 of the mounting flange cylinder 51 is connected to the upper side of the cutter 52, the hanging member C and the wire W are suspended and lowered to the upper side of the mounting flange cylinder 51. The cutter 52 is composed of a cylindrical member 52a having a cutting blade at its peripheral end, and a center drill 52b coaxially disposed on the cylindrical member 52a and projecting forward from the drilling blade, and the cylindrical member 52a and the center drill 52b And are fixed. Further, an adapter 54 having an annular protrusion 54a formed at its upper end is mounted relatively non-rotatably above the cylindrical member 52a and the center drill 52b.

また、蓋体53は、中心部に上下方向に貫通する貫通孔53aが形成されており、貫通孔53aにアダプタ54が挿通されている。また、蓋体53は、貫通孔53aの内周面から外径方向に凹設される凹部53bが周方向に複数形成されており、凹部53bには、貫通孔53aの径方向に進退可能な固定冶具55が配設されている。固定冶具55が貫通孔53aの内径方向に突出し、アダプタ54の環状突部54aの下面に係止することで、カッタ52と蓋体53とが一体化されている。   Moreover, the through-hole 53a penetrated to an up-down direction is formed in the center part at the cover 53, and the adapter 54 is penetrated by the through-hole 53a. The lid 53 has a plurality of circumferentially formed recesses 53b recessed from the inner peripheral surface of the through hole 53a in the outer diameter direction, and the recess 53b can be advanced and retracted in the radial direction of the through hole 53a. A fixing jig 55 is provided. The fixing jig 55 protrudes in the inner diameter direction of the through hole 53a, and is engaged with the lower surface of the annular projection 54a of the adapter 54, whereby the cutter 52 and the lid 53 are integrated.

本実施例におけるカッタ52の重量は、略2910kgとなっており、蓋体53の重量は、略1900kgとなっており、アダプタ54の重量は、略290kgとなっており、これらの総重量は略5100kgとなっている。   The weight of the cutter 52 in the present embodiment is approximately 2910 kg, the weight of the lid 53 is approximately 1900 kg, the weight of the adapter 54 is approximately 290 kg, and the total weight of these is approximately It is 5100 kg.

図5に示されるように、取付フランジ筒51の上方に蓋体53を載置した状態で取付フランジ筒51と蓋体53との位置合わせを行い、図示しないボルトナット等により固定する。このとき、カッタ52は、取付フランジ筒51の内部に収容されることとなる。   As shown in FIG. 5, in a state where the lid 53 is placed above the mounting flange cylinder 51, the mounting flange cylinder 51 and the lid 53 are aligned and fixed by a not-shown bolt and nut or the like. At this time, the cutter 52 is accommodated inside the mounting flange cylinder 51.

また、図5の拡大部に示されるように、取付フランジ筒51と蓋体53との間には、パッキンS2が周方向に亘って圧接されるため、取付フランジ筒51と蓋体53との間の密封性を確保できる。尚、本実施例では、蓋体53側に設けられた凹溝にパッキンS2が圧入されている形態を例示したが、これに限られず、取付フランジ筒51側に凹溝を設け、該凹溝にパッキンS2が圧入されていてもよい。   Further, as shown in the enlarged portion of FIG. 5, since the packing S2 is pressure-welded in the circumferential direction between the mounting flange cylinder 51 and the lid 53, the mounting flange cylinder 51 and the lid 53 It is possible to ensure sealing between the two. In the present embodiment, the embodiment is exemplified in which the packing S2 is pressed into the concave groove provided on the lid 53 side, but the present invention is not limited thereto. A concave groove is provided on the mounting flange cylinder 51 side, and the concave groove is provided. The packing S2 may be press-fitted to the

尚、本実施例では、蓋体53を取付フランジ筒51の上に載置した後も、安全性確保のために蓋体53にワイヤWを若干緩めた状態でクレーンに接続しているが、これに限られず、吊り具C及びワイヤWを蓋体53から取外してもよい。また、取付フランジ筒51を位置調整しやすくするために、クレーンにより取付フランジ筒51を若干吊った状態で弁箱41に対して位置調整を行うようにしてもよい。   In the present embodiment, after placing the lid 53 on the mounting flange cylinder 51, the wire W is connected to the crane in a slightly loosened state to the lid 53 for safety reasons, but Not limited to this, the hanger C and the wire W may be removed from the lid 53. Further, in order to facilitate position adjustment of the mounting flange cylinder 51, position adjustment may be performed on the valve box 41 in a state where the mounting flange cylinder 51 is slightly suspended by a crane.

次に、切断機5の駆動機構8(駆動部)をカッタ52に接続する。先ず、駆動機構8の構造について図6に基づいて説明する。   Next, the drive mechanism 8 (drive unit) of the cutting machine 5 is connected to the cutter 52. First, the structure of the drive mechanism 8 will be described based on FIG.

図6に示されるように、駆動機構8は、軸部材81と、軸部材81を把持若しくは把持解除可能な把持部材82と、把持部材82を軸部材81の軸方向の範囲内で進退移動させる進退部材83と、進退部材83よりも下方の位置で軸部材81を移動規制若しくは規制解除可能な規制部材84と、進退部材83及び規制部材84が取付けられる基部材85と、から主に構成されている。本実施例における駆動機構8の重量は、略6060kgとなっている。   As shown in FIG. 6, the drive mechanism 8 moves the shaft member 81, the gripping member 82 capable of gripping or releasing the shaft member 81, and the gripping member 82 back and forth within the axial range of the shaft member 81. Mainly composed of an advancing and retracting member 83, a restricting member 84 capable of restricting or releasing the movement of the shaft member 81 at a position lower than the advancing and retracting member 83, and a base member 85 to which the advancing and retracting member 83 and the restricting member 84 are attached. ing. The weight of the drive mechanism 8 in this embodiment is approximately 6060 kg.

基部材85には、上方に立設する支柱部85aが複数設けられており、進退部材83は、支柱部85aに沿って上下方向にスライド移動可能に取付けられている。すなわち、軸部材81を把持部材82により把持し、その状態で進退部材83を支柱部85aに沿って移動させることにより、軸部材81を上下方向にスライドさせることができるようになっている。   The base member 85 is provided with a plurality of support portions 85a erected upward, and the advancing and retracting member 83 is attached slidably along the support portions 85a in the vertical direction. That is, the shaft member 81 can be slid in the vertical direction by holding the shaft member 81 by the holding member 82 and moving the advancing and retracting member 83 along the column portion 85a in this state.

また、基部材85の下方には、軸部材81を挿通可能な筒状のケース部86が設けられている。ケース部86の内周面には、軸部材81の外周面との間を密封するパッキンS3が設けられているとともに、ケース部86の下面には、環状に形成される環状溝86aが形成されており、環状溝86aに環状のパッキンS4が圧入されている。   Further, below the base member 85, a cylindrical case portion 86 through which the shaft member 81 can be inserted is provided. The inner circumferential surface of the case 86 is provided with a packing S3 for sealing the space between it and the outer circumferential surface of the shaft member 81, and the lower surface of the case 86 is formed with an annular groove 86a formed annularly. The annular packing S4 is pressed into the annular groove 86a.

また、進退部材83の一部には、回転モータ87が固設されており、回転モータ87によって軸部材81を把持した状態の把持部材82に対して回転力を付与することによって軸部材81に回転を伝えることができるとともに、軸部材81が回転することにより、カッタ52を回転させることができるようになっている。尚、軸部材81は、複数用意することで、軸方向に継ぎ足して軸方向の長さを長くできるようになっており、このような継ぎ足し構造のため、重量と高さを軽減することができる。   In addition, a rotary motor 87 is fixed to a part of the advancing and retracting member 83, and a rotational force is applied to the holding member 82 in a state in which the shaft member 81 is held by the rotary motor 87 The rotation can be transmitted, and the cutter 52 can be rotated by the rotation of the shaft member 81. Incidentally, by preparing a plurality of shaft members 81, it is possible to add them in the axial direction so that the length in the axial direction can be increased, and because of such a added structure, weight and height can be reduced. .

図7に示されるように、駆動機構8をカッタ52と接続する際には、蓋体53の上部フランジ53cの周方向にジャッキ7(スペーサ)を複数配置しておき、軸部材81を予め所定長さ下方に進行させ、軸部材81の下端部がケース部86よりも下方に突出した状態とし、吊り具C及びワイヤWにより駆動機構8を吊り下げ、ケース部86をジャッキ7上に載置する。次いで、ジャッキ7により形成されるケース部86と蓋体53の上部フランジ53cとの隙間から作業者がアクセスして、軸部材81とアダプタ54とをボルトナットN1により接続する。   As shown in FIG. 7, when the drive mechanism 8 is connected to the cutter 52, a plurality of jacks 7 (spacers) are arranged in the circumferential direction of the upper flange 53c of the lid 53, and the shaft member 81 is predetermined. The lower end of the shaft member 81 projects downward below the case 86, and the drive mechanism 8 is suspended by the hanger C and the wire W, and the case 86 is placed on the jack 7. Do. Next, the operator accesses from the gap between the case portion 86 formed by the jack 7 and the upper flange 53 c of the lid 53, and connects the shaft member 81 and the adapter 54 with the bolt and nut N 1.

尚、本実施例では、駆動機構8をジャッキ7の上に載置した後も、安全性確保のために駆動機構8にワイヤWを若干緩めた状態でクレーンに接続しているが、これに限られず、吊り具C及びワイヤWを駆動機構8から取外してもよい。また、駆動機構8を位置調整しやすくするために、クレーンにより駆動機構8を若干吊った状態で軸部材81とアダプタ54との位置調整を行うようにしてもよい。   In this embodiment, even after the drive mechanism 8 is placed on the jack 7, the wire W is connected to the crane in a slightly loosened state in the drive mechanism 8 for safety reasons, but The hanger C and the wire W may be removed from the drive mechanism 8 without limitation. Further, in order to facilitate the position adjustment of the drive mechanism 8, the position adjustment of the shaft member 81 and the adapter 54 may be performed in a state where the drive mechanism 8 is slightly suspended by a crane.

次に、図8に示されるように、駆動機構8、アダプタ54、カッタ52をクレーンにより僅かに上方に吊り上げ、ジャッキ7をケース部86と蓋体53の間から取外すとともに、固定冶具55を凹部53b内に退避させる。このときには、カッタ52(略2910kg)、アダプタ54(略290kg)、駆動機構8(略6060kg)をクレーンにより吊り上げるため、クレーンにかかる重量は、略9260kgとなっている。この際、蓋体53の下部フランジ53dの周方向にジャッキ7(スペーサ)を複数配置しておき、駆動機構8をジャッキ7の上に載置して、重量を受けるようにして、クレーンにかかる重量を軽減してもよい。   Next, as shown in FIG. 8, the drive mechanism 8, the adapter 54, and the cutter 52 are slightly lifted by a crane and the jack 7 is removed from between the case 86 and the lid 53, and the fixing jig 55 is recessed. Evacuate in 53b. At this time, since the cutter 52 (approximately 2910 kg), the adapter 54 (approximately 290 kg), and the drive mechanism 8 (approximately 6060 kg) are lifted by the crane, the weight applied to the crane is approximately 9260 kg. At this time, a plurality of jacks 7 (spacers) are disposed in the circumferential direction of the lower flange 53d of the lid 53, and the drive mechanism 8 is placed on the jacks 7 so as to receive the weight and hang on the crane. Weight may be reduced.

続いて、図9に示されるように、クレーンによりケース部86が蓋体53の上部フランジ53cに載置されるように駆動機構8を吊り降ろして図示しないボルトナットによりケース部86と蓋体53とを固定する。これにより、取付フランジ筒51、カッタ52、蓋体53、アダプタ54及び駆動機構8により切断機5が構成され、筐体2、作業弁4及び切断機5により切断装置が構成される。この際、センタードリル52bが弁体42と接触しないように調整されるのは言うまでもない。   Subsequently, as shown in FIG. 9, the drive mechanism 8 is suspended so that the case portion 86 is placed on the upper flange 53 c of the lid 53 by a crane, and the case portion 86 and the lid 53 are not And fix. Thus, the cutter 5 is constituted by the mounting flange cylinder 51, the cutter 52, the lid 53, the adapter 54 and the drive mechanism 8, and the cutter 2, the work valve 4, and the cutter 5 is constituted. At this time, it is needless to say that the center drill 52b is adjusted so as not to come in contact with the valve body 42.

また、ケース部86と蓋体53とを固定したときには、パッキンS4がケース部86と蓋体53の上部フランジ53cとの間で圧接されるため、ケース部86と蓋体53との間の密封性を確保できる。尚、本実施例では、ケース部86の下面に形成された環状溝86aにパッキンS4が圧入されている形態を例示したが、これに限られず、蓋体53の上部フランジ53c側に環状溝を設け、該環状溝にパッキンS4が圧入されていてもよい。   Further, when the case 86 and the lid 53 are fixed, the packing S4 is pressure-welded between the case 86 and the upper flange 53 c of the lid 53, so sealing between the case 86 and the lid 53 is achieved. I can secure the sex. In the present embodiment, the packing S4 is pressed into the annular groove 86a formed on the lower surface of the case 86. However, the present invention is not limited thereto, and the annular groove is formed on the upper flange 53c side of the lid 53. The packing S4 may be press-fitted into the annular groove.

尚、本実施例では、ケース部86を蓋体53の上に載置した後も、安全性確保のために駆動機構8にワイヤWを若干緩めた状態でクレーンに接続しているが、これに限られず、吊り具C及びワイヤWを駆動機構8から取外してもよい。また、駆動機構8を位置調整しやすくするために、クレーンにより駆動機構8を若干吊った状態でケース部86と蓋体53との位置調整を行うようにしてもよい。   In this embodiment, after placing the case 86 on the lid 53, the wire W is connected to the crane in a slightly loosened state to the drive mechanism 8 for safety reasons, but The hanger C and the wire W may be removed from the drive mechanism 8 without being limited thereto. Further, in order to facilitate the position adjustment of the drive mechanism 8, the position adjustment of the case portion 86 and the lid 53 may be performed while the drive mechanism 8 is slightly suspended by a crane.

次に、切断機5により流体管1を切断する工程について説明する。図10に示されるように、先ず、作業弁4の弁体42を退避させて分岐部2aを開放するとともに、上述した把持部材82により軸部材81における後端側の外周面を把持する。次いで、回転モータ87を駆動させ、軸部材81及びカッタ52を回転させる。そして、軸部材81及びカッタ52が回転された状態で進退部材83を流体管1に向けて進行させる。これによると、先ずカッタ52のセンタードリル52bが流体管1の管壁を穿設する。   Next, the process of cutting the fluid pipe 1 by the cutter 5 will be described. As shown in FIG. 10, first, the valve body 42 of the work valve 4 is retracted to open the branch portion 2a, and the outer peripheral surface on the rear end side of the shaft member 81 is gripped by the gripping member 82 described above. Next, the rotary motor 87 is driven to rotate the shaft member 81 and the cutter 52. Then, the advancing and retracting member 83 is advanced toward the fluid pipe 1 with the shaft member 81 and the cutter 52 rotated. According to this, first, the center drill 52 b of the cutter 52 drills the pipe wall of the fluid pipe 1.

軸部材81及びカッタ52の進行移動は、把持部材82が軸部材81を把持位置から規制部材84に近接する位置までの範囲で行われ、軸部材81は、パッキンS3に摺動して進行移動され、進行移動完了後の軸部材81及びカッタ52は、規制部材84によって移動規制される。その後、回転モータ87による軸部材81の回転を停止し、軸部材81の上端に別の軸部材81’を連結し、上記工程を繰り返すことでカッタ52の円筒部材52aが流体管1を切断する。この際、必ずしも別の軸部材81’を連結するとは限らず、予め所定長さの軸部材81を用いて、切断を完了してもよい。   The advancing movement of the shaft member 81 and the cutter 52 is performed in the range from the holding position of the holding member 82 to the position where the holding member 82 approaches the regulating member 84, and the shaft member 81 slides on the packing S3 to move forward The movement of the shaft member 81 and the cutter 52 after movement and movement is restricted by the restriction member 84. Thereafter, the rotation of the shaft member 81 by the rotation motor 87 is stopped, another shaft member 81 'is connected to the upper end of the shaft member 81, and the cylindrical member 52a of the cutter 52 cuts the fluid pipe 1 by repeating the above steps. . Under the present circumstances, it does not necessarily connect another axial member 81 ', and you may complete cutting using the axial member 81 of predetermined length beforehand.

図11に示されるように、カッタ52により流体管1が切断されると、流体管1が切断されることにより形成された切片1aが円筒部材52a内に保持された状態となる。そして、軸部材81及びカッタ52を上記工程と逆の手順で退行移動させることで、切片1aとともに取付フランジ筒51の内部に引き上げ、作業弁4の弁体42により分岐部2aを閉塞することで、流体管1の切断作業が完了する。   As shown in FIG. 11, when the fluid pipe 1 is cut by the cutter 52, the section 1a formed by cutting the fluid pipe 1 is held in the cylindrical member 52a. Then, the shaft member 81 and the cutter 52 are retreated and moved in the reverse procedure to the above process, thereby pulling up the inside of the mounting flange cylinder 51 together with the section 1a and closing the branch portion 2a by the valve body 42 of the work valve 4. , The cutting operation of the fluid pipe 1 is completed.

尚、特に図示しないが、作業弁4の弁体42により分岐部2aを閉塞した状態のまま、先ず、駆動機構8を蓋体53から取外し、蓋体53とカッタ52とを切片1aとともに取付フランジ筒51から取外し、取付フランジ筒51を作業弁4から取外すことで、切断機5の撤去作業が完了する。このように、切断機5を構成する各部材を別々にクレーンにより運搬できるため、切断機5の撤去作業時におけるクレーンへの負荷を軽減できる。   Although not shown in the drawings, the drive mechanism 8 is first removed from the lid 53 with the valve body 42 of the work valve 4 closing the branch portion 2a, and the lid 53 and cutter 52 together with the section 1a are attached flanges The removal operation of the cutting machine 5 is completed by removing the mounting flange tube 51 from the work valve 4 by removing it from the tube 51. Thus, since each member which comprises the cutting machine 5 can be separately conveyed by a crane, the load to the crane at the time of the removal operation | work of the cutting machine 5 can be reduced.

次に、流体管1を切断した箇所にバタフライ弁10を設置するための弁導入機6を設置する工程について説明する。図12に示されるように、先ず、作業弁4の弁体42により分岐部2aを閉塞した状態のまま、上下方向に貫通する円筒部材61(筒状体)を吊り具C及びワイヤWにより吊持して作業弁4の上方まで下降させ、作業弁4の上方に円筒部材61を図示しないボルトナット等により固定する。本実施例における円筒部材61の重量は、略3000kgとなっている。また、円筒部材61と作業弁4(弁箱41)との間には、図示しないOリングが圧接されるため、円筒部材61と作業弁4とが密封状に接続される。   Next, the process of installing the valve introducer 6 for installing the butterfly valve 10 at the location where the fluid pipe 1 is cut will be described. As shown in FIG. 12, first, with the branch portion 2a closed by the valve body 42 of the work valve 4, the cylindrical member 61 (cylindrical body) penetrating in the vertical direction is suspended by the hanger C and the wire W. It is held and lowered to the upper side of the work valve 4, and the cylindrical member 61 is fixed above the work valve 4 by a bolt nut or the like (not shown). The weight of the cylindrical member 61 in the present embodiment is approximately 3000 kg. Further, since an O-ring (not shown) is pressed between the cylindrical member 61 and the work valve 4 (valve box 41), the cylindrical member 61 and the work valve 4 are connected in a sealing manner.

尚、本実施例では、円筒部材61を作業弁4の上に載置した後も、安全性確保のために円筒部材61にワイヤWを若干緩めた状態でクレーンに接続しているが、これに限られず、吊り具C及びワイヤWを円筒部材61から取外してもよい。また、円筒部材61を位置調整しやすくするために、クレーンにより円筒部材61を若干吊った状態で弁箱41と円筒部材61との位置調整を行うようにしてもよい。   In the present embodiment, even after the cylindrical member 61 is placed on the work valve 4, the wire W is connected to the crane in a slightly loosened state to the cylindrical member 61 for safety reasons, but The hangers C and the wire W may be removed from the cylindrical member 61. Further, in order to facilitate the position adjustment of the cylindrical member 61, the position adjustment of the valve box 41 and the cylindrical member 61 may be performed while the cylindrical member 61 is slightly suspended by a crane.

次に、円筒部材61に対してバタフライ弁10を仮設置する工程を説明する。先ず、バタフライ弁10の構造について図14に基づいて説明する。   Next, the process of temporarily installing the butterfly valve 10 on the cylindrical member 61 will be described. First, the structure of the butterfly valve 10 will be described based on FIG.

図14に示されるように、バタフライ弁10は、流体管1の流路を流体が通過可能状態と通過不能状態とに制御するものであり、ほぼ中央部に開口を有する仕切壁11と、仕切壁11の上端部に回動可能に取付けられる開閉軸12と、開閉軸12を中心に回動して仕切壁11の開口を開閉可能に設けられた弁体13と、仕切壁11の上端部に密封状に接続される略水平方向に延びる略円形の上蓋部14(蓋体部)と、を備える。仕切壁11には、その両側面及び底面に亘ってパッキンS5が固着され、上蓋部14には、その外周面の全周に亘ってパッキンS6が固着されており、パッキンS5,S6は連続するように接続される。尚、本実施例におけるバタフライ弁10の総重量は、略9540kgとなっている。更に尚、仕切壁11と上蓋部14との間がパッキン等で密封されていることは言うまでもない。   As shown in FIG. 14, the butterfly valve 10 controls the flow path of the fluid pipe 1 in a fluid-passable state and a non-passage state, and divides the partition wall 11 having an opening at substantially the center An open / close shaft 12 rotatably attached to the upper end of the wall 11, a valve body 13 provided to be able to open / close the opening of the partition 11 by pivoting about the open / close shaft 12, and an upper end of the partition 11 And a substantially circularly extending substantially circular upper lid portion 14 (lid portion) connected in a sealing manner. A packing S5 is fixed to the partition wall 11 over both side surfaces and the bottom thereof, a packing S6 is fixed to the upper lid 14 over the entire periphery of the outer peripheral surface, and the packings S5 and S6 are continuous To be connected. The total weight of the butterfly valve 10 in this embodiment is approximately 9540 kg. Furthermore, it goes without saying that the space between the partition wall 11 and the upper lid portion 14 is sealed by packing or the like.

図13に示されるように、バタフライ弁10を円筒部材61に仮設置する際には、先ず、仕切壁11、開閉軸12及び弁体13(本体部)を一体化した状態で吊り具C及びワイヤWにより吊持して円筒部材61内に収容される位置まで下降させる。このとき、弁体13は、管軸方向と略平行(仕切壁11の開口を開放した状態)となるように配置する。   As shown in FIG. 13, when temporarily installing the butterfly valve 10 on the cylindrical member 61, first, the hanger C and the opening / closing shaft 12 and the valve body 13 (main body) are integrated in a state of being integrated. The wire W is lowered to a position where it is suspended and accommodated in the cylindrical member 61. At this time, the valve 13 is disposed so as to be substantially parallel to the pipe axis direction (in a state in which the opening of the partition wall 11 is opened).

そして、円筒部材61の周方向に複数形成された窓部61aを介して外部から円筒部材61内に一部突出するように係止部材62(係止部、保持部)を挿入する。これにより、仕切壁11から外側に突出する突出片11aが係止部材62の先端部に載置(係止)されるようになり、仕切壁11、開閉軸12及び弁体13が円筒部材61に保持されることとなる。尚、係止部材62の先端側下部には、弁体13の一部を収容可能な凹部62aが形成されているため、係止部材62と弁体13とが干渉しない。   Then, the locking member 62 (locking portion, holding portion) is inserted so as to partially protrude from the outside into the cylindrical member 61 via the window portions 61a formed in plural in the circumferential direction of the cylindrical member 61. As a result, the protruding piece 11 a protruding outward from the partition wall 11 is placed (locked) on the tip end portion of the locking member 62, and the partition wall 11, the open / close shaft 12 and the valve body 13 are cylindrical members 61. Will be held by In addition, since the recessed part 62a which can accommodate a part of valve body 13 is formed in the front end side lower part of the locking member 62, the locking member 62 and the valve body 13 do not interfere.

次いで、図14に示されるように、上蓋部14を吊り具C及びワイヤWにより吊持して開閉軸12を挿通させた状態で仕切壁11の上部に載置する。そして、図示しない固定手段により上蓋部14と仕切壁11とを密封状に接続してバタフライ弁10を構成する。   Next, as shown in FIG. 14, the upper lid portion 14 is suspended by the hanger C and the wire W, and placed on the upper portion of the partition wall 11 with the open / close shaft 12 inserted. Then, the upper lid portion 14 and the partition wall 11 are connected in a sealing manner by fixing means (not shown) to constitute the butterfly valve 10.

尚、本実施例では、上蓋部14を仕切壁11の上に載置した後も、安全性確保のために上蓋部14にワイヤWを若干緩めた状態でクレーンに接続しているが、これに限られず、吊り具C及びワイヤWを上蓋部14から取外してもよい。また、上蓋部14を位置調整しやすくするために、クレーンにより上蓋部14を若干吊った状態で上蓋部14と仕切壁11、開閉軸12及び弁体13との位置調整を行うようにしてもよい。   In this embodiment, even after the upper cover 14 is placed on the partition wall 11, the wire W is connected to the crane in a slightly loosened state to the upper cover 14 for safety reasons, but The hangers C and the wire W may be removed from the upper cover 14 without being limited thereto. Further, in order to facilitate the position adjustment of the upper lid portion 14, the position adjustment of the upper lid portion 14 with the partition wall 11, the open / close shaft 12 and the valve body 13 is performed while the upper lid portion 14 is slightly suspended by a crane. Good.

更に尚、本実施例では、一体化した仕切壁11、開閉軸12及び弁体13に対して上蓋部14を固定することでバタフライ弁10を円筒部材61上で構成する形態を例示したが、仕切壁11、開閉軸12、弁体13、上蓋部14をそれぞれ順番に別々に設置することでバタフライ弁10を構成してもよい。また、仕切壁11と弁体13を一体化し、開閉軸12と上蓋部14を一体化し、それらを組み立てることでバタフライ弁10を構成してもよい。つまり、少なくとも上蓋部14が他の部材(本体部)から分割されており、且つそれらを組み立てることでバタフライ弁10が構成される形態であれば自由に変更することができる。   Furthermore, in the present embodiment, the upper lid portion 14 is fixed to the integrated partition wall 11, the open / close shaft 12, and the valve body 13 to exemplify the configuration in which the butterfly valve 10 is configured on the cylindrical member 61. The butterfly valve 10 may be configured by separately installing the partition wall 11, the open / close shaft 12, the valve body 13, and the upper lid portion 14 in order. Alternatively, the butterfly valve 10 may be configured by integrating the partition wall 11 and the valve body 13, integrating the opening / closing shaft 12 and the upper lid portion 14, and assembling them. That is, at least the upper lid portion 14 is divided from other members (main body portions), and by assembling them, the configuration can be freely changed as long as the butterfly valve 10 is configured.

次に、図15に示されるように、上下方向に貫通する取付フランジ筒63を吊り具C及びワイヤWにより吊持して円筒部材61の上方まで下降させ、円筒部材61の上方に取付フランジ筒63を図示しないボルトナット等により固定する。本実施例における取付フランジ筒63の重量は、略2600kgとなっている。   Next, as shown in FIG. 15, the mounting flange cylinder 63 penetrating in the vertical direction is suspended by the hanger C and the wire W and lowered to the upper side of the cylindrical member 61 to mount the mounting flange cylinder above the cylindrical member 61. Fix 63 with a bolt and nut etc. not shown. The weight of the mounting flange cylinder 63 in this embodiment is approximately 2600 kg.

尚、本実施例では、取付フランジ筒63を円筒部材61の上に載置した後も、安全性確保のために取付フランジ筒63にワイヤWを若干緩めた状態でクレーンに接続しているが、これに限られず、吊り具C及びワイヤWを取付フランジ筒63から取外してもよい。また、取付フランジ筒63を位置調整しやすくするために、クレーンにより取付フランジ筒63を若干吊った状態で取付フランジ筒63と円筒部材61との位置調整を行うようにしてもよい。   In the present embodiment, after the mounting flange cylinder 63 is placed on the cylindrical member 61, the wire W is connected to the crane in a slightly loosened state in the mounting flange cylinder 63 for safety reasons. Not limited to this, the hanger C and the wire W may be removed from the mounting flange cylinder 63. Further, in order to facilitate position adjustment of the mounting flange cylinder 63, position adjustment of the mounting flange cylinder 63 and the cylindrical member 61 may be performed in a state where the mounting flange cylinder 63 is slightly suspended by a crane.

また、図15の拡大図に示されるように、取付フランジ筒63の下面には、環状溝63aが形成されており、該環状溝63aには、環状のパッキンS7が圧入されている。円筒部材61と取付フランジ筒63とを固定したときには、パッキンS7が円筒部材61と取付フランジ筒63との間で圧接されるため、円筒部材61と取付フランジ筒63との間の密封性を確保できる。尚、本実施例では、取付フランジ筒63の下面に形成された環状溝63aにパッキンS7が圧入されている形態を例示したが、これに限られず、円筒部材61側に環状溝を設け、該環状溝にパッキンS7が圧入されていてもよい。   Further, as shown in the enlarged view of FIG. 15, an annular groove 63a is formed on the lower surface of the mounting flange cylinder 63, and an annular packing S7 is pressed into the annular groove 63a. When the cylindrical member 61 and the mounting flange cylinder 63 are fixed, the packing S7 is press-contacted between the cylindrical member 61 and the mounting flange cylinder 63, so the sealing performance between the cylindrical member 61 and the mounting flange cylinder 63 is secured. it can. In the present embodiment, the packing S7 is pressed into the annular groove 63a formed on the lower surface of the mounting flange cylinder 63. However, the present invention is not limited thereto, and an annular groove is provided on the cylindrical member 61 side. The packing S7 may be pressed into the annular groove.

次に、図16に示されるように、取付フランジ筒63に対してバタフライ弁10と接続される弁吊金具64を仮設置する。詳しくは、弁吊金具64の上方に取付フランジ筒63の蓋体65を接続した状態で吊り具C及びワイヤWにより吊持して取付フランジ筒63の上方まで下降させる。弁吊金具64は、略水平方向を向く取付面部64aと、取付面部64aの略中心に設けられる貫通孔64bから上方に延びる筒状の軸部64cと、取付面部64aと軸部64cとの間に亘って設けられる補強用のリブ64dと、を備えている。また、軸部64cの上端部には、アダプタ66が接続されている。   Next, as shown in FIG. 16, a valve hanger 64 connected to the butterfly valve 10 is temporarily installed on the mounting flange cylinder 63. Specifically, in a state in which the lid 65 of the mounting flange cylinder 63 is connected to the upper side of the valve hanging bracket 64, the hanging member C and the wire W are suspended and lowered to the upper side of the mounting flange cylinder 63. The valve suspension fitting 64 has a mounting surface 64a facing in a substantially horizontal direction, a cylindrical shaft 64c extending upward from a through hole 64b provided substantially at the center of the mounting surface 64a, and a space between the mounting surface 64a and the shaft 64c. And a reinforcing rib 64d provided across the Further, an adapter 66 is connected to the upper end portion of the shaft portion 64c.

また、蓋体65は、中心部に上下方向に貫通する貫通孔65aが形成されており、貫通孔65aにアダプタ66が挿通されている。また、蓋体65は、貫通孔65aの内周面から外径方向に凹設される凹部65bが周方向に複数形成されており、凹部65bには、貫通孔65aの径方向に進退可能な固定冶具67が配設されている。固定冶具67が貫通孔65aの内径方向に突出し、アダプタ66の環状突部66aの下面に係止することで、弁吊金具64と蓋体65とが一体化されている。   Further, in the lid 65, a through hole 65a penetrating in the vertical direction is formed at the central portion, and the adapter 66 is inserted through the through hole 65a. Further, in the lid 65, a plurality of recessed portions 65b recessed in the outer diameter direction from the inner peripheral surface of the through hole 65a are formed in the circumferential direction, and the recessed portion 65b can be advanced and retracted in the radial direction of the through hole 65a A fixing jig 67 is provided. The fixing jig 67 protrudes in the inner diameter direction of the through hole 65 a, and is locked to the lower surface of the annular protrusion 66 a of the adapter 66, whereby the valve suspension fitting 64 and the lid 65 are integrated.

本実施例における弁吊金具64の重量は、略2000kgとなっており、蓋体65の重量は、略1900kgとなっており、アダプタ66の重量は、略270kgとなっており、これらの総重量は略4170kgとなっている。   The weight of the valve suspension bracket 64 in the present embodiment is approximately 2000 kg, the weight of the lid 65 is approximately 1900 kg, and the weight of the adapter 66 is approximately 270 kg. Is about 4170 kg.

図17に示されるように、取付フランジ筒63の上端に蓋体65を載置した状態で取付フランジ筒63と蓋体65との位置合わせを行い、図示しないボルトナット等により固定する。尚、本実施例では、蓋体65を取付フランジ筒63の上に載置した後も、安全性確保のために蓋体65にワイヤWを若干緩めた状態でクレーンに接続しているが、これに限られず、吊り具C及びワイヤWを蓋体65から取外してもよい。また、蓋体65を位置調整しやすくするために、クレーンにより蓋体65を若干吊った状態で取付フランジ筒63と蓋体65との位置調整を行うようにしてもよい。   As shown in FIG. 17, with the lid 65 mounted on the upper end of the mounting flange cylinder 63, the positioning between the mounting flange cylinder 63 and the lid 65 is performed, and fixed by a bolt nut or the like (not shown). In this embodiment, after placing the lid 65 on the mounting flange cylinder 63, the wire W is connected to the crane in a slightly loosened state to the lid 65 for safety reasons, but Not limited to this, the hanger C and the wire W may be removed from the lid 65. Further, in order to facilitate position adjustment of the lid 65, position adjustment of the mounting flange cylinder 63 and the lid 65 may be performed in a state where the lid 65 is slightly suspended by a crane.

図17の拡大部に示されるように、取付フランジ筒63と蓋体65との間には、パッキンS8が周方向に亘って圧接されるため、取付フランジ筒63と蓋体65との間の密封性を確保できる。尚、本実施例では、蓋体65側に設けられた凹溝にパッキンS8が圧入されている形態を例示したが、これに限られず、取付フランジ筒63側に凹溝を設け、該凹溝にパッキンS8が圧入されていてもよい。   As shown in the enlarged portion of FIG. 17, since the packing S 8 is pressure-welded in the circumferential direction between the mounting flange cylinder 63 and the lid 65, the space between the mounting flange cylinder 63 and the lid 65 is Sealability can be secured. In the present embodiment, the embodiment in which the packing S8 is press-fitted into the concave groove provided on the lid 65 side is exemplified, but the present invention is not limited thereto. A concave groove is provided on the mounting flange cylinder 63 side, and the concave groove is provided. The packing S8 may be press-fitted to the

次に、弁導入機6の挿入機としての駆動機構8を弁吊金具64に接続する。尚、駆動機構8は、流体管1の切断作業時に用いたものと同一のものを使用しているため、駆動機構8の構造の説明を省略する。   Next, the drive mechanism 8 as an inserter of the valve introducer 6 is connected to the valve suspension fitting 64. In addition, since the drive mechanism 8 uses the same thing as what was used at the time of the cutting operation | work of the fluid pipe 1, description of the structure of the drive mechanism 8 is abbreviate | omitted.

図18に示されるように、駆動機構8を弁吊金具64と接続させる際には、軸部材81を予め所定長さ下方に進行させ、軸部材81の下端部がケース部86よりも下方に突出した状態とするとともに、蓋体65の上部フランジ65cの周方向にジャッキ7(スペーサ)を複数配置し、クレーンにより駆動機構8を吊り下げ、ケース部86をジャッキ7上に載置する。次いで、ジャッキ7により形成されるケース部86と蓋体65の上部フランジ65cとの隙間から作業者がアクセスして、軸部材81とアダプタ66とをボルトナットN2により接続する。   As shown in FIG. 18, when connecting the drive mechanism 8 to the valve support 64, the shaft member 81 is advanced downward by a predetermined length in advance, and the lower end portion of the shaft member 81 is lower than the case portion 86. A plurality of jacks 7 (spacers) are arranged in the circumferential direction of the upper flange 65c of the lid 65, the drive mechanism 8 is suspended by a crane, and the case 86 is mounted on the jacks 7. Next, the operator accesses from the gap between the case portion 86 formed by the jack 7 and the upper flange 65 c of the lid 65, and connects the shaft member 81 and the adapter 66 with the bolt and nut N 2.

次に、図19に示されるように、駆動機構8、アダプタ66、弁吊金具64をクレーンにより僅かに上方に吊り上げ、ジャッキ7をケース部86と蓋体65の間から取外すとともに、固定冶具55を凹部53b内に退避させる。このときには、弁吊金具64(略2000kg)、アダプタ66(略270kg)、駆動機構8(略6060kg)を吊り具C及びワイヤWにより吊り上げるため、吊り具C及びワイヤWにかかる重量は、略8330kgとなっている。この際、蓋体65の下部フランジ65dの周方向にジャッキ7(スペーサ)を複数配置しておき、駆動機構8をジャッキ7の上に載置して、重量を受けるようにして、クレーンにかかる重量を軽減してもよい。   Next, as shown in FIG. 19, the drive mechanism 8, the adapter 66 and the valve support 64 are slightly lifted by a crane, and the jack 7 is removed from between the case 86 and the lid 65, and the fixing jig 55 Are retracted into the recess 53b. At this time, the valve hooks 64 (approximately 2000 kg), the adapter 66 (approximately 270 kg), and the drive mechanism 8 (approximately 6060 kg) are lifted by the hanger C and the wire W, so the weight applied to the hanger C and the wire W is approximately 8330 kg It has become. At this time, a plurality of jacks 7 (spacers) are disposed in the circumferential direction of the lower flange 65 d of the lid 65, and the drive mechanism 8 is placed on the jacks 7 so as to receive the weight and hang on the crane. Weight may be reduced.

次に、特に図示しないが、吊り具C及びワイヤWによりケース部86が蓋体65の上部フランジ65c載置されるように駆動機構8を吊り降ろして図示しないボルトナットによりケース部86と蓋体65とを固定する。また、ケース部86と蓋体65とを固定したときには、パッキンS4がケース部86と蓋体65の上部フランジ65cとの間で圧接されるため、ケース部86と蓋体65との間の密封性を確保できる。尚、本実施例では、ケース部86の下面にパッキンS4が配設されている形態を例示したが、これに限られず、蓋体65の上部フランジ65c側に環状溝を設け、該環状溝にパッキンS4が圧入されていてもよい。   Next, although not particularly shown, the drive mechanism 8 is suspended so that the case 86 can be placed on the upper flange 65c of the lid 65 by the hanger C and the wire W, and the case 86 and the lid can be Fix 65 and. Further, when the case 86 and the lid 65 are fixed, the packing S 4 is pressed between the case 86 and the upper flange 65 c of the lid 65, so sealing between the case 86 and the lid 65 I can secure the sex. In this embodiment, the packing S4 is disposed on the lower surface of the case portion 86. However, the present invention is not limited thereto. An annular groove is provided on the upper flange 65c side of the lid 65, and the annular groove is formed in the annular groove. The packing S4 may be press-fitted.

尚、本実施例では、ケース部86を蓋体65の上に載置した後も、安全性確保のために駆動機構8にワイヤWを若干緩めた状態でクレーンに接続しているが、これに限られず、吊り具C及びワイヤWを駆動機構8から取外してもよい。また、駆動機構8を位置調整しやすくするために、クレーンにより駆動機構8を若干吊った状態でケース部86と蓋体65との位置調整を行うようにしてもよい。   In the present embodiment, after placing the case 86 on the lid 65, the wire W is connected to the crane in a slightly loosened state to the drive mechanism 8 for safety reasons, but The hanger C and the wire W may be removed from the drive mechanism 8 without being limited thereto. Further, in order to facilitate the position adjustment of the drive mechanism 8, the position adjustment of the case portion 86 and the lid 65 may be performed in a state where the drive mechanism 8 is slightly suspended by a crane.

次いで、図20に示されるように、駆動機構8により弁吊金具64を下降させ、弁吊金具64の取付面部64aとバタフライ弁10の上蓋部14とを図示しないボルトナットにより接続する。これにより、円筒部材61、取付フランジ筒63、弁吊金具64、蓋体65、アダプタ66及び駆動機構8により弁導入機6が構成され、筐体2、作業弁4及び弁導入機6により弁設置装置が構成される。尚、このとき、バタフライ弁10の開閉軸12は、弁吊金具64の軸部64cに挿入される。   Next, as shown in FIG. 20, the valve support 64 is lowered by the drive mechanism 8, and the mounting surface 64a of the valve support 64 and the upper cover 14 of the butterfly valve 10 are connected with a bolt and nut not shown. Thus, the valve introducer 6 is constituted by the cylindrical member 61, the mounting flange cylinder 63, the valve suspension fitting 64, the lid 65, the adapter 66 and the drive mechanism 8, and the casing 2, the work valve 4 and the valve introducer 6 An installation device is configured. At this time, the open / close shaft 12 of the butterfly valve 10 is inserted into the shaft portion 64 c of the valve support 64.

その後、駆動機構8により弁吊金具64及びバタフライ弁10を僅かに上方に吊り上げ、係止部材62を退行させて円筒部材61の窓部61aから引き抜く。尚、図示しないが、窓部61aには、密封状に閉塞するように栓がされる。この際、バタフライ弁10の下端部が弁体42と接触しないように調整されるのは言うまでもない。   Thereafter, the valve support 64 and the butterfly valve 10 are lifted slightly upward by the drive mechanism 8, and the locking member 62 is retracted to be pulled out from the window 61 a of the cylindrical member 61. Although not shown, a plug is attached to the window 61a so as to seal in a sealing manner. At this time, it is needless to say that adjustment is made so that the lower end portion of the butterfly valve 10 does not contact the valve body 42.

次に、弁導入機6により流体管1の切断された箇所にバタフライ弁10を設置する工程について説明する。図21に示されるように、作業弁4の弁体42を退避させて分岐部2aを開放するとともに、上述した把持部材82により軸部材81における後端側の外周面を把持する。そして、進退部材83を流体管1に向けてスライドさせることで軸部材81及びバタフライ弁10を流体管1に向けて進行させる。   Next, the process of installing the butterfly valve 10 at the cut portion of the fluid pipe 1 by the valve introducer 6 will be described. As shown in FIG. 21, the valve body 42 of the work valve 4 is retracted to open the branch portion 2a, and the outer peripheral surface of the shaft member 81 at the rear end side is gripped by the gripping member 82 described above. Then, the shaft member 81 and the butterfly valve 10 are advanced toward the fluid pipe 1 by sliding the advancing and retracting member 83 toward the fluid pipe 1.

軸部材81及びバタフライ弁10の進行移動は、把持部材82が軸部材81を把持位置から規制部材84に近接する位置までの範囲で行われ、進行移動完了後の軸部材81及びバタフライ弁10は、規制部材84によって移動規制される。その後、軸部材81の上端に別の軸部材81’,81’を連結し、上記工程を繰り返すことでバタフライ弁10を流体管1の切断箇所に配置する。バタフライ弁10を流体管1の切断箇所に配置した後、所定の固定手段によりバタフライ弁10を筐体2に固定する。この際、必ずしも別の軸部材81’を連結するとは限らず、予め所定長さの軸部材81を用いて、配置を完了してもよい。   The advancing movement of the shaft member 81 and the butterfly valve 10 is performed in the range from the holding position of the holding member 82 to the position where the holding member 82 is close to the regulating member 84, and the shaft member 81 and the butterfly valve 10 The movement is restricted by the restriction member 84. Thereafter, another shaft member 81 ′, 81 ′ is connected to the upper end of the shaft member 81, and the butterfly valve 10 is disposed at the cut portion of the fluid pipe 1 by repeating the above process. After the butterfly valve 10 is disposed at the cut portion of the fluid pipe 1, the butterfly valve 10 is fixed to the housing 2 by a predetermined fixing means. Under the present circumstances, it does not necessarily connect another shaft member 81 ', and you may complete arrangement using the shaft member 81 of predetermined length beforehand.

尚、バタフライ弁10を筐体2に固定した状態にあっては、仕切壁11のパッキンS5が筐体2の両内側面及び内底面に亘って圧接されるとともに、上蓋部14のパッキンS6が分岐部2aの内周面に亘って圧接されるため、流体管1を流れる流体が仕切壁11と筐体2との間から回り込むことが防止されるとともに、分岐部2aから流体が漏れることが防止される。   When the butterfly valve 10 is fixed to the housing 2, the packing S 5 of the partition wall 11 is in pressure contact across both inner side surfaces and the inner bottom surface of the housing 2, and the packing S 6 of the upper cover 14 is Since the pressure is applied across the inner peripheral surface of the branch portion 2a, the fluid flowing through the fluid pipe 1 is prevented from coming around between the partition wall 11 and the housing 2, and the fluid may leak from the branch portion 2a. It is prevented.

次いで、図22に示されるように、円筒部材61及び取付フランジ筒63内の流体を外部に排出するとともに、円筒部材61の作業孔部61bからアクセスして弁吊金具64の取付面部64aとバタフライ弁10の上蓋部14とのボルトナットによる接続を解除する。そして、軸部材81を上記工程と逆の手順で退行移動させ、弁吊金具64を円筒部材61及び取付フランジ筒63の内部に引き上げることで、バタフライ弁10を流体管1の切断箇所に設置する作業が完了する。   Next, as shown in FIG. 22, the fluid in the cylindrical member 61 and the mounting flange cylinder 63 is discharged to the outside, and the mounting surface 64a of the valve support 64 and the butterfly are accessed by accessing from the working hole 61b of the cylindrical member 61. The bolt and nut connection with the upper lid 14 of the valve 10 is released. Then, the butterfly valve 10 is installed at the cut portion of the fluid pipe 1 by retracting the shaft member 81 in the reverse procedure of the above process and pulling up the valve support 64 into the cylindrical member 61 and the mounting flange cylinder 63. The work is complete.

尚、特に図示しないが、先ず、駆動機構8を蓋体65から取外し、蓋体65と弁吊金具64とを取付フランジ筒63から取外し、取付フランジ筒63を円筒部材61から取外し、円筒部材61を作業弁4から取外すことで、弁導入機6の撤去作業が完了する。このように、弁導入機6を構成する各部材を別々にクレーンにより運搬できるため、弁導入機6の撤去作業時におけるクレーンへの負荷を軽減できる。その後、作業弁4を筐体2の分岐部2aから取外すことで、流体管1の所定箇所を切断し、その切断箇所にバタフライ弁10を設置するまでの一連の作業が完了する。   Although not particularly illustrated, first, the drive mechanism 8 is removed from the lid 65, the lid 65 and the valve suspension bracket 64 are removed from the mounting flange cylinder 63, and the mounting flange cylinder 63 is removed from the cylindrical member 61. Is removed from the work valve 4, the removal work of the valve introducer 6 is completed. Thus, since each member which comprises the valve introducer machine 6 can be separately conveyed by a crane, the load to the crane at the time of the removal operation | work of the valve introducer machine 6 can be reduced. Thereafter, by removing the work valve 4 from the branch portion 2 a of the housing 2, a predetermined portion of the fluid pipe 1 is cut, and a series of operations until the butterfly valve 10 is installed at the cut portion are completed.

このように、作業弁4に仕切壁11、開閉軸12及び弁体13を設置し、作業弁4に設置された仕切壁11、開閉軸12及び弁体13に上蓋部14を取付けることでバタフライ弁10を構成している。これによれば、バタフライ弁10の本体部である仕切壁11、開閉軸12及び弁体13と、蓋体部である上蓋部14と、を別々に運搬できることから、バタフライ弁10を組み立てた状態で円筒部材61に設置する場合(略9540kg)に比べて、クレーンへの負荷を分散して軽減できるため、クレーンを小型化することができ、バタフライ弁10を設置する作業スペースを省スペース化できる。   Thus, the partition wall 11, the open / close shaft 12 and the valve body 13 are installed in the work valve 4, and the upper lid portion 14 is attached to the partition wall 11, the open / close shaft 12 and the valve body 13 installed in the work valve 4 The valve 10 is configured. According to this, since the partition wall 11 which is the main body of the butterfly valve 10, the open / close shaft 12 and the valve body 13 and the upper lid 14 which is the lid can be transported separately, the butterfly valve 10 is assembled Because the load on the crane can be dispersed and reduced compared to the case where it is installed on the cylindrical member 61 (approximately 9540 kg), the crane can be miniaturized, and the working space for installing the butterfly valve 10 can be saved. .

本実施例のようにカッタ52のようなホールソーを用いる場合には、少なくとも流体管1よりも大径の円筒部材52aを要するため、筐体2の構成も大型化し、これに伴いバタフライ弁10、特に、分岐部2aを閉塞するための上蓋部14が大型化してしまうが、このような場合であっても、仕切壁11、開閉軸12及び弁体13と上蓋部14とを別々に設置することから、クレーンへの負荷を分散して、クレーンを好適に小型化することができる。   When a hole saw such as the cutter 52 is used as in this embodiment, at least the cylindrical member 52a having a diameter larger than that of the fluid pipe 1 is required, the structure of the housing 2 is also enlarged. In particular, although the size of the upper cover 14 for closing the branch 2a is increased, even in such a case, the partition wall 11, the open / close shaft 12, the valve body 13 and the upper cover 14 are separately installed. Thus, the load on the crane can be distributed to preferably miniaturize the crane.

また、作業弁4にバタフライ弁10を収容可能な円筒部材61(略3000kg)を設置し、その円筒部材61内に仕切壁11、開閉軸12及び弁体13を設置するとともに、円筒部材61に設置された仕切壁11、開閉軸12及び弁体13に上蓋部14を取付けるため、作業弁4に設置した円筒部材61を用いて、バタフライ弁10を位置決めしながら精度よく設置できる。   Further, a cylindrical member 61 (approximately 3000 kg) capable of accommodating the butterfly valve 10 is installed in the work valve 4, and the partition wall 11, the open / close shaft 12 and the valve body 13 are installed in the cylindrical member 61. In order to attach the upper lid portion 14 to the installed partition wall 11, the open / close shaft 12 and the valve body 13, the butterfly valve 10 can be accurately positioned while being positioned using the cylindrical member 61 installed on the work valve 4.

また、円筒部材61には、係止部材62が取付け可能となっており、この係止部材62に仕切壁11、開閉軸12及び弁体13を係止した安定状態で上蓋部14を精度よく取付けることができる。   In addition, the locking member 62 can be attached to the cylindrical member 61, and the upper cover portion 14 can be precisely adjusted in a stable state in which the partition wall 11, the opening / closing shaft 12 and the valve body 13 are locked to the locking member 62. It can be installed.

また、係止部材62にバタフライ弁10を保持させた状態で、該バタフライ弁10に駆動機構8及び弁吊金具64(挿入機)を連結するため、バタフライ弁10を安定させた状態で、バタフライ弁10に駆動機構8及び弁吊金具64を精度よく取付けることができ、この駆動機構8及び弁吊金具64により筐体2内の所期の位置にバタフライ弁10を設置することができる。   Further, in a state in which the butterfly valve 10 is held by the locking member 62, the butterfly valve 10 is stabilized in order to connect the drive mechanism 8 and the valve suspension fitting 64 (insertion machine) to the butterfly valve 10. The drive mechanism 8 and the valve suspension bracket 64 can be attached to the valve 10 with high accuracy, and the butterfly valve 10 can be installed at a desired position in the housing 2 by the drive mechanism 8 and the valve suspension bracket 64.

さらに、バタフライ弁10を構成した後、駆動機構8及び弁吊金具64を接続して弁導入機6を構成することから、バタフライ弁10と駆動機構8及び弁吊金具64を一体的に組み立てた状態で作業弁4に設置することに比べて、クレーンの負荷を軽減できる。   Furthermore, after the butterfly valve 10 is configured, the drive mechanism 8 and the valve suspension fitting 64 are connected to configure the valve introducer 6, so the butterfly valve 10, the drive mechanism 8 and the valve suspension fitting 64 are integrally assembled. Compared to installing the work valve 4 in the state, the load on the crane can be reduced.

また、駆動機構8及び弁吊金具64とバタフライ弁10との間、具体的には、駆動機構8のケース部86と蓋体65の間にスペーサとしてのジャッキ7を配置し、ジャッキ7に載置された駆動機構8に接続される弁吊金具64の取付面部64aをバタフライ弁10の上蓋部14と連結する。これによれば、駆動機構8及び弁吊金具64の荷重をジャッキ7に預けた状態でバタフライ弁10に連結できるため、連結作業が容易となるばかりか、クレーンの負荷を軽減できる。   Further, a jack 7 as a spacer is disposed between the drive mechanism 8 and the valve suspension fitting 64 and the butterfly valve 10, specifically, between the case portion 86 of the drive mechanism 8 and the lid 65, and mounted on the jack 7. The mounting surface portion 64 a of the valve hanger 64 connected to the drive mechanism 8 disposed is connected to the upper lid portion 14 of the butterfly valve 10. According to this, since it is possible to connect to the butterfly valve 10 in a state in which the loads of the drive mechanism 8 and the valve support 64 are deposited on the jacks 7, not only the connecting operation becomes easy but also the load of the crane can be reduced.

尚、不断流状態での切断や弁導入の際に全ての窓部や作業孔部などには蓋を密封状に取り付けるのは言うまでもない。   It is needless to say that a lid is sealingly attached to all the windows and working holes, etc. when cutting or introducing a valve in a steady flow condition.

次に変形例1の作業弁について図23に基づいて説明する。尚、前記実施例と同一構成で重複する構成の説明を省略する。   Next, the work valve of the modification 1 will be described based on FIG. The description of the same configuration as that of the above embodiment will be omitted.

図23に示されるように、変形例1における作業弁400は、上下方向に貫通する略筒状を成す弁箱401と、弁箱401における流体管1の管軸方向の両側に配設される弁体402A,402Bと、弁体402A,402Bを収容する弁蓋403A,403Bと、弁蓋403A,403Bに対し弁体402A,402Bを移動させる弁棒404A,404Bと、から構成されている。   As shown in FIG. 23, the work valve 400 in the first modification is disposed on both sides in the axial direction of the fluid pipe 1 in the valve box 401 having a substantially cylindrical shape penetrating in the vertical direction. It is comprised from valve body 402A, 402B, valve cover 403A, 403B which accommodates valve body 402A, 402B, and valve stem 404A, 404B which moves valve body 402A, 402B with respect to valve cover 403A, 403B.

弁箱401は、流体管1の管軸方向に対向する開口部401a,401bが設けられており、開口部401a,401bを連通するようにスライド溝401cが形成されている。開口部401a,401bに対して弁体402A,402Bをそれぞれ挿入した状態で弁蓋403A,403Bを弁箱401に密封状に固定することで作業弁400が構成されるようになっている。弁体402A,402Bを弁箱401の両側から進行させることで、弁体402A,402Bの先端同士が当接して筐体2の分岐部2aを閉塞できるようになっている。   The valve box 401 is provided with openings 401a and 401b opposed in the axial direction of the fluid pipe 1, and a slide groove 401c is formed to communicate the openings 401a and 401b. The work valve 400 is configured by sealing the valve lids 403A and 403B to the valve box 401 in a sealing manner with the valve bodies 402A and 402B inserted into the openings 401a and 401b, respectively. By advancing the valve bodies 402A and 402B from both sides of the valve box 401, the tips of the valve bodies 402A and 402B abut against each other, and the branch portion 2a of the housing 2 can be closed.

このように弁体402A,402B、弁蓋403A,403B、弁棒404A,404Bを分割構造とし、これらを順に別々に設置することで、作業弁400を設置する際に用いるクレーンへの負荷を軽減できる。また、弁箱401には、対向する両側に開口部401a,401bを備えており、弁体402A,402B、弁蓋403A,403B、弁棒404A,404Bは、開口部401a,401bに取付けられるため、作業弁400の重量バランスを安定させることができ、作業弁400と筐体2との接続箇所に偏荷重がかかることを抑制できる。   As described above, the valve bodies 402A and 402B, the valve lids 403A and 403B, and the valve rods 404A and 404B have separate structures, and these are separately installed in order to reduce the load on the crane used when installing the work valve 400. it can. Further, the valve box 401 is provided with openings 401a and 401b on opposite sides, and the valve bodies 402A and 402B, the valve covers 403A and 403B, and the valve rods 404A and 404B are attached to the openings 401a and 401b. The weight balance of the work valve 400 can be stabilized, and the application of an unbalanced load to the connection between the work valve 400 and the housing 2 can be suppressed.

次に変形例2の作業弁について図24に基づいて説明する。図24に示されるように、作業弁410は、半割部材411A(弁箱の分割体)、弁体402A、弁蓋403A、弁棒404Aがユニット化された第1分割体412と、半割部材411B(弁箱の分割体)、弁体402B、弁蓋403B、弁棒404Bがユニット化された第2分割体413と、を備え、第1分割体412と第2分割体413とを筐体2の分岐部2a上で組み立てることで構成されるようなものであってもよい。尚、筐体2の分岐部2aに各部材を組み立てて作業弁410を構成するようになっていてもよい。この場合、弁箱が複数の半割部材411A,411Bにより構成されているため、クレーンへの負荷を軽減できる。   Next, the work valve of the modification 2 will be described based on FIG. As shown in FIG. 24, the work valve 410 includes a first divided body 412 in which a half member 411A (a divided body of a valve box), a valve body 402A, a valve cover 403A, and a valve rod 404A is unitized, And a second divided body 413 in which the valve body 402B, the valve cover 403B, and the valve rod 404B are unitized, and the first divided body 412 and the second divided body 413 are housed. It may be constructed by assembling on the bifurcated portion 2 a of the body 2. The work valve 410 may be configured by assembling the respective members in the branch portion 2 a of the housing 2. In this case, since the valve box is configured of the plurality of half members 411A and 411B, the load on the crane can be reduced.

また、前記実施例では、カッタ52が円筒部材52aとセンタードリル52bとから構成されるホールソーである形態を例示したがこれに限られず、自由に変更することができる。例えば、図25に示されるように、変形例3における切断機500は、筐体20内で流体管1の所定箇所に外嵌されるカッタ機構501と、作業弁402の上方に取付けられる作業ケース502と、カッタ機構501を駆動させ且つ作業ケース502内に引き上げ可能な駆動機構800と、から構成されている。   Moreover, in the said Example, although the cutter 52 illustrated the form which is a hole saw comprised from the cylindrical member 52a and the center drill 52b, it is not restricted to this, It can change freely. For example, as shown in FIG. 25, the cutting machine 500 in the third modification includes a cutter mechanism 501 externally fitted to a predetermined position of the fluid pipe 1 in the housing 20 and a working case mounted above the work valve 402. And a drive mechanism 800 that drives the cutter mechanism 501 and can be pulled up into the work case 502.

カッタ機構501は、流体管1の外周方向に回転自在に設けられる2つのスプロケット501a,501aと、スプロケット501a,501aに駆動力を伝える駆動伝達部501bと、を備えており、スプロケット501a,501aには、流体管1を切削する切削バイト(図示略)が取付けられている。また、駆動機構800は、駆動伝達部501bに接続されるロッド801と、ロッド801を回転駆動させるモータ802と、ロッド801を引き上げ可能な引上機構803と、を備えている。   The cutter mechanism 501 includes two sprockets 501a and 501a rotatably provided in the outer peripheral direction of the fluid pipe 1, and a drive transmission unit 501b for transmitting a driving force to the sprockets 501a and 501a. The sprockets 501a and 501a are provided. A cutting tool (not shown) for cutting the fluid pipe 1 is attached. The drive mechanism 800 also includes a rod 801 connected to the drive transmission unit 501 b, a motor 802 for driving the rod 801 to rotate, and a pull-up mechanism 803 capable of pulling up the rod 801.

モータ802を駆動させることで、ロッド801及び駆動伝達部501bを介してスプロケット501a,501aが回転し流体管1を切断できる。また、スプロケット501a,501aが流体管1の切片を保持したまま、引上機構803によりカッタ機構501を作業ケース502内に引き上げることができるようになっている。   By driving the motor 802, the sprockets 501a and 501a can be rotated via the rod 801 and the drive transmission unit 501b, and the fluid pipe 1 can be cut. In addition, the cutter mechanism 501 can be pulled up into the working case 502 by the pulling up mechanism 803 while the sprockets 501a and 501a hold the section of the fluid pipe 1.

また、切断機の変形例として次のようなものもある。図26に示されるように、変形例4における切断機510は、筐体200の分岐部200aの上方に作業弁403を介して固定される筒状体511と、筒状体511の上部に接続されるベースプレート512と、ベースプレート512に対して相対移動可能に設けられた可動プレート513と、可動プレート513に駆動力を与える駆動手段514と、可動プレート513の上部に接続されるエンドミル515と、エンドミル515を回転させる駆動機構516と、筐体200を周方向に回転させる回転機構523と、を備えている。   Further, there are the following as a modification of the cutting machine. As shown in FIG. 26, the cutting machine 510 in the fourth modification is connected to the cylindrical body 511 fixed above the branch portion 200 a of the housing 200 via the work valve 403 and to the upper part of the cylindrical body 511. Base plate 512, a movable plate 513 provided so as to be movable relative to the base plate 512, a drive means 514 for applying a driving force to the movable plate 513, an end mill 515 connected to the upper portion of the movable plate 513, an end mill A drive mechanism 516 for rotating 515 and a rotation mechanism 523 for rotating the casing 200 in the circumferential direction are provided.

ベースプレート512の中央部には、スリット512aが開口形成されており、ベースプレート512の上面には、流体管1の管軸方向に沿って延びるレール517,517がスリット512aを挟んで並列して配置されている。尚、スリット512aの周囲には、パッキンが固着されている。   A slit 512a is formed in the center of the base plate 512, and rails 517 and 517 extending along the axial direction of the fluid pipe 1 are arranged in parallel on the upper surface of the base plate 512 with the slit 512a interposed therebetween. ing. A packing is fixed around the slit 512a.

可動プレート513は、スリット513aと、レール517,517に嵌合された凹部518,518と、を有し、レール517,517上をスライド移動可能となっている。また、可動プレート513は、ネジ孔519を有する構造部520が上方に突出して形成されている。尚、可動プレート513は、ベースプレート512におけるスリット512aのパッキンに密封状に当接した状態でスライド移動するようになっている。   The movable plate 513 has a slit 513 a and concave portions 518 and 518 fitted in the rails 517 and 517, and can slide on the rails 517 and 517. The movable plate 513 is formed by projecting a structural portion 520 having a screw hole 519 upward. The movable plate 513 slides in a state where the movable plate 513 is in a state of sealing contact with the packing of the slit 512 a in the base plate 512.

駆動手段514は、ベースプレート512の上面に管軸方向に離間する2つの立設片521,521と、立設片521,521間に渡って回動自在且つ軸方向に移動不能に取付けられるネジ棒522と、を備え、ネジ棒522は、可動プレート513における構造部520のネジ孔519に螺挿されている。すなわち、ネジ棒522が軸回りに回動することにより可動プレート513が流体管1の管軸方向にスライドするようになる。尚、ネジ棒522の一端には、ハンドル522aが取付けられており、ハンドル522aを把持してネジ棒522の回動操作を行うことができるようになっている。   The driving means 514 is provided on the upper surface of the base plate 512 with two standing pieces 521, 521 spaced apart in the axial direction of the tube, and a screw rod rotatably and axially immovably mounted between the standing pieces 521, 521. And the screw rod 522 is screwed into the screw hole 519 of the structural portion 520 in the movable plate 513. That is, the movable plate 513 is slid in the axial direction of the fluid pipe 1 by rotating the screw rod 522 around the axis. A handle 522a is attached to one end of the screw rod 522, so that the screw rod 522 can be rotated by gripping the handle 522a.

これによれば、エンドミル515を駆動機構516により回転させながら進行させることで流体管1を穿孔することができ、その状態で可動プレート513を流体管1の管軸方向にスライドさせることで、流体管1に管軸方向に延びる第1切削部(図示略)を形成することができる。また、第1切削部を形成した後、エンドミル515を第1切削部の軸方向中央部に位置させ、回転機構523により筐体200を回転させることで流体管1の周方向に沿って延びる第2切削部を形成することができる。   According to this, the fluid pipe 1 can be bored by advancing the end mill 515 while rotating the drive mechanism 516, and by moving the movable plate 513 in the axial direction of the fluid pipe 1 in this state, the fluid The pipe 1 can be provided with a first cutting portion (not shown) extending in the axial direction of the pipe. Further, after forming the first cutting portion, the end mill 515 is positioned at the axial center of the first cutting portion, and the casing 200 is rotated by the rotation mechanism 523 to extend along the circumferential direction of the fluid pipe 1 2 can form a cutting part.

すなわち、前記第1切削部に弁体13を挿通させ、前記第2切削部に仕切壁11を挿通させることで、弁体13を開放した状態でバタフライ弁10を流体管1内に設置することができるため、流体管1を流れる流体による影響を抑制することができる。このように、少なくともバタフライ弁10等の制流体を挿入設置できる開口を形成できるものであれば、流体管1を切断することに限らない。   That is, the butterfly valve 10 is installed in the fluid pipe 1 in a state in which the valve body 13 is opened by inserting the valve body 13 into the first cutting portion and inserting the partition wall 11 into the second cutting portion. Therefore, the influence of the fluid flowing through the fluid pipe 1 can be suppressed. Thus, it is not limited to cutting the fluid pipe 1 as long as it can form an opening capable of inserting and installing a control fluid, such as at least a butterfly valve 10 or the like.

以上、本発明の実施例を図面により説明してきたが、具体的な構成はこれら実施例に限られるものではなく、本発明の要旨を逸脱しない範囲における変更や追加があっても本発明に含まれる。   Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these embodiments, and any changes or additions may be made without departing from the scope of the present invention. Be

例えば、前記実施例では、制流体としてバタフライ弁10を用いる形態を例示したが、本発明はこれに限られず、例えば、制流体は、仕切弁、プラグ、または切換弁等であってもよい。また例えば前記実施例では、作業弁4を複数の分割体から構成される態様を例示したが、これに限らず作業弁を一体に構成してもよい。   For example, although the form which uses butterfly valve 10 as control fluid was illustrated in the example, the present invention is not limited to this, for example, control fluid may be a gate valve, a plug, or a switching valve etc. Further, for example, in the embodiment, the aspect in which the work valve 4 is configured by a plurality of divided bodies is illustrated, but the invention is not limited thereto and the work valve may be integrally configured.

1 流体管
2 筐体
2a 分岐部(開口部)
2b フランジ
4 作業弁
5 切断機
6 弁導入機
7 ジャッキ(スペーサ)
8 駆動機構(挿入機)
10 バタフライ弁(制流体)
11 仕切壁(本体部)
12 開閉軸(本体部)
13 弁体(本体部)
14 上蓋部(蓋体部)
20 筐体
41 弁箱
41c 弁座部
42 弁体
43 弁蓋
44 弁棒
51 取付フランジ筒
52 カッタ
53 蓋体
54 アダプタ
55 固定冶具
61 円筒部材(筒状体)
62 係止部材(係止部、保持部)
63 取付フランジ筒(筒状体)
64 弁吊金具
65 蓋体
66 アダプタ
81,81’ 軸部材(駆動軸)
86 ケース部
200 筐体
200a 分岐部(開口部)
400 作業弁
401 弁箱
402 作業弁
402A,402B 弁体
403 作業弁
403A,403B 弁蓋
404A,404B 弁棒
410 作業弁
411A,411B 半割部材
412 第1分割体
413 第2分割体
500 切断機
510 切断機
1 fluid pipe 2 housing 2a bifurcation (opening)
2b Flange 4 Work valve 5 Cutting machine 6 Valve introduction machine 7 Jack (spacer)
8 Drive mechanism (insertion machine)
10 Butterfly valve (control fluid)
11 Partition wall (body part)
12 Opening and closing shaft (body part)
13 Valve body (body part)
14 Upper lid (lid)
Reference Signs List 20 case 41 valve box 41 c valve seat 42 valve body 43 valve cover 44 valve rod 51 mounting flange cylinder 52 cutter 53 cover 54 adapter 55 fixing jig 61 cylindrical member (cylindrical body)
62 Locking member (locking part, holding part)
63 Mounting flange tube (cylindrical body)
64 valve suspension bracket 65 lid 66 adapter 81, 81 'shaft member (drive shaft)
86 Case part 200 Case 200a Branch part (opening part)
400 work valve 401 valve box 402 work valve 402A, 402B valve body 403 work valve 403A, 403B valve cover 404A, 404B valve rod 410 work valve 411A, 411B halved member 412 first divided body 413 second divided body 500 cutting machine 510 Cutting machine

Claims (5)

流体管に対し密封状に取付けられる筐体と、該筐体の開口部に取付けられ該筐体の内部を開閉可能な作業弁と、該作業弁に取付けられる挿入機とを用い、流路を制御する本体部と前記筐体の開口部を密封する蓋体部とからなる制流体を、前記筐体内に不断流状態で設置する制流体の設置方法であって、
前記流体管に前記筐体を密封状に取付けるとともに、前記筐体に前記作業弁を取付けた後、前記作業弁に前記制流体の前記本体部を設置し、
前記作業弁に設置された前記本体部に前記蓋体部を取付けることを特徴とする制流体の設置方法。
A flow path is formed by using a housing hermetically attached to a fluid pipe, a work valve attached to an opening of the housing and capable of opening and closing the inside of the housing, and an inserter attached to the work valve. It is an installation method of the control fluid which installs the control fluid which consists of the main part to control and the lid which seals the opening of the above-mentioned case in the inside of the above-mentioned case in non-stop flow state,
The casing is attached to the fluid pipe in a sealing manner, and the work valve is attached to the casing, and then the body portion of the control fluid is installed on the work valve;
A method of installing a control fluid, comprising attaching the lid portion to the main body portion installed in the work valve.
前記作業弁に前記制流体を収容可能な筒状体を設置した後、該筒状体に前記本体部を設置し、前記筒状体に設置された前記本体部に前記蓋体部を取付けることを特徴とする請求項1に記載の制流体の設置方法。   After installing a cylindrical body capable of containing the control fluid in the work valve, the main body portion is installed in the cylindrical body, and the lid body portion is attached to the main body portion installed in the cylindrical body. The installation method of the control fluid of Claim 1 characterized by these. 前記本体部を前記筒状体に設けられた係止部に係止させ、前記係止部に係止された前記本体部に前記蓋体部を取付けることを特徴とする請求項2に記載の制流体の設置方法。   The said main-body part is made to engage with the latching | locking part provided in the said cylindrical body, The said cover part is attached to the said main-body part latched by the latching | locking part. How to install control fluid. 前記制流体を前記筒状体に設けられた保持部に保持させ、前記保持部に保持された前記制流体に前記挿入機を連結することを特徴とする請求項2または3に記載の制流体の設置方法。   The control fluid according to claim 2 or 3, wherein the control fluid is held by a holding portion provided on the cylindrical body, and the insertion machine is connected to the control fluid held by the holding portion. Installation method. 前記挿入機と前記制流体との間にスペーサを配置し、該スペーサに載置された前記挿入機に前記制流体を連結することを特徴とする請求項1ないし4のいずれかに記載の制流体の設置方法。   The control according to any one of claims 1 to 4, wherein a spacer is disposed between the insertion machine and the control fluid, and the control fluid is connected to the insertion machine placed on the spacer. How to install fluid.
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JP7284841B2 (en) 2017-10-13 2023-05-31 コスモ工機株式会社 Fluid control installation method

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JP2006132715A (en) * 2004-11-08 2006-05-25 Waterworks Technology Development Organization Co Ltd Valve installation equipment for existing pipe and valve element used in the same
JP2011038584A (en) * 2009-08-10 2011-02-24 Waterworks Technology Development Organization Co Ltd Work gate valve
JP2013108594A (en) * 2011-11-22 2013-06-06 Cosmo Koki Co Ltd Method for introducing work implement
JP2016061391A (en) * 2014-09-19 2016-04-25 コスモ工機株式会社 Installation body attachment structure

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Publication number Priority date Publication date Assignee Title
JP2006515406A (en) * 2003-02-28 2006-05-25 オクルード Valve insertion and installation method
JP2006132715A (en) * 2004-11-08 2006-05-25 Waterworks Technology Development Organization Co Ltd Valve installation equipment for existing pipe and valve element used in the same
JP2011038584A (en) * 2009-08-10 2011-02-24 Waterworks Technology Development Organization Co Ltd Work gate valve
JP2013108594A (en) * 2011-11-22 2013-06-06 Cosmo Koki Co Ltd Method for introducing work implement
JP2016061391A (en) * 2014-09-19 2016-04-25 コスモ工機株式会社 Installation body attachment structure

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