JP5524918B2

JP5524918B2 - Method and apparatus for cleaning the inside of plant equipment

Info

Publication number: JP5524918B2
Application number: JP2011168171A
Authority: JP
Inventors: 康明荒川; 周仁松山
Original assignee: Kobelco Eco Solutions Co Ltd
Current assignee: Shinko Pantec Co Ltd
Priority date: 2011-08-01
Filing date: 2011-08-01
Publication date: 2014-06-18
Anticipated expiration: 2031-08-01
Also published as: JP2013031791A

Description

本発明は、ごみ焼却システムにおける減温塔をはじめとするプラント用機器の内側面に付着したクリンカなどの異物を除去するための清掃方法及び装置に関するものである。 The present invention relates to a cleaning method and apparatus for removing foreign substances such as clinker adhering to an inner surface of plant equipment such as a temperature reducing tower in a garbage incineration system.

プラント用機器の内側面には、様々な異物が付着する。例えば、ごみ焼却システムに設けられる減温塔では、燃焼ガス中に含まれる灰粒子が塔内側面に付着し、クリンカとして堆積する。この堆積物は放置すると成長して機器の良好な運転を妨げるため、定期的に除去される必要がある。 Various foreign substances adhere to the inner surface of the plant equipment. For example, in a temperature reducing tower provided in a waste incineration system, ash particles contained in combustion gas adhere to the inner side surface of the tower and accumulate as clinker. This deposit needs to be removed on a regular basis because it will grow if left unattended and hinder the good operation of the equipment.

このようなクリンカなどの機器内付着物を除去する方法として、特許文献１には、当該付着物を湿潤させる工程と、その湿潤させた付着物に対してケレン棒、振動工具、衝撃工具などにより機械的エネルギーを与えることにより前記付着物を除去する工程とを含むものが開示されている。 As a method for removing such deposits in equipment such as a clinker, Patent Document 1 discloses a step of wetting the deposits, and using a keren rod, a vibration tool, an impact tool, or the like for the wet deposits. And a step of removing the deposit by applying mechanical energy.

特開２００４−２０２４８５号公報JP 2004-202485 A

前記プラント用機器として、大きな全高を有するものが多く存在する。このような機器の上部の内側面に付着した異物を除去するためには、機器内に高さ寸法の大きい足場を組む必要がある。しかし、このような足場の設置には多くの工数を要するとともに、機器内での作業についての安全管理が難しいという課題がある。 There are many plant equipment having a large overall height. In order to remove foreign substances adhering to the upper inner surface of the device, it is necessary to assemble a scaffold with a large height in the device. However, the installation of such a scaffold requires a lot of man-hours, and there is a problem that it is difficult to perform safety management for work in the equipment.

そこで、本発明は、プラント用機器内の清掃をその高さ位置にかかわらず安全にかつ容易に行うことが可能な清掃方法及び装置を提供することを目的とする。 Then, an object of this invention is to provide the cleaning method and apparatus which can perform the cleaning in plant equipment safely and easily irrespective of the height position.

前記課題を解決するための手段として、本発明者等は、プラント用機器の側壁に設けられた点検口（例えばマンホール）に着目し、当該点検口から清掃用工具（例えば振動工具）を挿入して当該工具の先端部を機器内付着物に突き当てることに想到した。このような方法によれば、機器内に足場を組む必要がなく、機器外の既設の作業場を利用して清掃作業を進めることが可能である。 As means for solving the above problems, the present inventors pay attention to an inspection port (for example, a manhole) provided on the side wall of the plant equipment, and insert a cleaning tool (for example, a vibration tool) from the inspection port. As a result, the inventors have come up with the tip of the tool against the deposits in the equipment. According to such a method, it is not necessary to build a scaffold in the device, and it is possible to proceed with the cleaning work using an existing work place outside the device.

しかし、この方法では、前記点検口からターゲットとなる付着物に至ることが可能な長尺の清掃用工具を使用しなければならない。例えば、前記点検口からこれと対向する部位に付着した異物の除去をするためには、機器の内径よりも大きな長さを有するきわめて長尺な清掃用工具を要する。この清掃用工具の自重並びに当該自重による下向きのモーメントは非常に大きく、これに抗して作業者が清掃用工具を上下左右に操作しながら清掃作業を進めることは容易でない。 However, in this method, a long cleaning tool that can reach the target deposit from the inspection port must be used. For example, in order to remove the foreign matter adhering to the portion facing the inspection port from the inspection port, a very long cleaning tool having a length larger than the inner diameter of the device is required. The self-weight of the cleaning tool and the downward moment due to the self-weight are very large, and it is not easy for the operator to proceed with the cleaning work while operating the cleaning tool up, down, left and right against this.

本発明は、このような点に鑑み、プラント用機器の側壁に設けられた点検口を利用して当該機器の外部から安全かつ容易に機器内の清掃を行うことが可能な清掃方法を提供する。具体的に、この方法は、前記点検口から清掃用工具を挿入して当該清掃用工具の先端部を前記機器の内側面に付着した異物に突き当てることにより当該異物に機械エネルギーを与えてこれを除去することと、当該清掃用工具の長手方向の中間部分に索状体を接続し、この索状体を介して当該清掃用工具に上向きの弾性力（弾性変形可能な部材の弾性復元力）を与えることにより、前記異物の除去中に前記清掃用工具の上下方向の動きを許容しながら当該清掃用工具の自重に起因する下向きの力を低減させること、とを含む。 In view of such a point, the present invention provides a cleaning method capable of safely and easily cleaning the inside of the equipment from the outside of the equipment using an inspection port provided on the side wall of the equipment for the plant. . Specifically, this method applies mechanical energy to the foreign matter by inserting a cleaning tool from the inspection port and abutting the tip of the cleaning tool against the foreign matter adhering to the inner surface of the device. And a cord-like body is connected to the longitudinal intermediate portion of the cleaning tool, and an upward elastic force (elastic restoring force of the elastically deformable member) is applied to the cleaning tool via the cord-like body. ) To reduce the downward force caused by the weight of the cleaning tool while allowing the vertical movement of the cleaning tool during the removal of the foreign matter.

この方法では、前記清掃用工具に与えられる上向きの弾性力により、当該清掃用工具の上下の動きを許容しながら当該清掃用工具に作用する下向きの力及びこれに起因する下向きのモーメントが低減されるため、前記清掃用工具が長尺であっても、作業者は比較的小さな力で当該清掃用工具を支持し、かつ、これを上下に動かしながら（もちろん左右方向にも動かしてよい。）作業を進めることができる。 In this method, due to the upward elastic force applied to the cleaning tool, the downward force acting on the cleaning tool and the downward moment resulting therefrom are reduced while allowing the vertical movement of the cleaning tool. Therefore, even if the cleaning tool is long, the operator supports the cleaning tool with a relatively small force and moves the tool up and down (of course, it may move in the left-right direction). Work can proceed.

前記弾性力を付与するための具体的手段としては、例えば前記索状体をばねを介して前記機器または固定側設備（例えば機器外部の作業場）に連結してもよいが、前記清掃用工具の上方に巻取り装置を吊下げてこの巻取り装置と前記清掃用工具の中間部位とを接続するのがよい。ここで、前記巻取り装置は、回転可能なドラムと、このドラムに巻き付けられ、かつ、先端部が垂下する巻取り索状体と、この巻取り索状体を上向きに巻き取る向きに前記ドラムの回転方向を付勢する巻取り用ばね部材とを有し、前記巻取り索状体の先端部が直接または別の索状体を介して間接的に前記清掃用工具の中間部位に接続される。 As specific means for applying the elastic force, for example, the cord-like body may be connected to the device or a fixed-side facility (for example, a work place outside the device) via a spring. It is preferable that the winding device is suspended upward to connect the winding device and the intermediate portion of the cleaning tool. Here, the winding device includes a rotatable drum, a winding rope wound around the drum and having a tip portion depending on the drum, and the drum in a direction in which the winding rope is wound upward. A winding spring member for urging the rotation direction of the winding tool, and a leading end portion of the winding rope is directly or indirectly connected to an intermediate portion of the cleaning tool via another rope. The

この方法では、前記巻取り装置自身がバランスウエイトとして作用することにより、作業中における前記清掃用工具の（振動等に起因する）動きを抑制し、安定した作業を可能にする。 In this method, the winding device itself acts as a balance weight, thereby suppressing the movement of the cleaning tool (due to vibration or the like) during the operation and enabling a stable operation.

前記巻取り装置の吊下げは、当該巻取り装置をその巻取り索状体とは別の吊下げ用索状体の一方の端に連結し、この吊下げ用索状体を前記巻取り装置の上方に設けられた滑車に掛けた状態で当該吊下げ用索状体を前記機器の外部に導出して保持することにより行われるのが、よい。この方法では、機器外部での前記吊下げ用索状体の操作により、前記巻取り装置の高さ位置を前記清掃用工具に対する上向き弾性力の付与に適した位置に容易に調節することができる。 In the suspension of the winding device, the winding device is connected to one end of a suspension rope that is different from the winding rope, and the suspension rope is connected to the winding device. It is good to carry out by pulling out and holding the said rope for suspension to the exterior of the said apparatus in the state hung on the pulley provided above. In this method, the height position of the winding device can be easily adjusted to a position suitable for applying an upward elastic force to the cleaning tool by operating the hanging cord outside the device. .

前記滑車は、前記清掃用工具が挿入される点検口よりも上側の点検口から機器内に挿入される滑車支持部材に取付けられることにより支持されるのが、好ましい。ここで、当該滑車支持部材として、前記機器の内部に向かう方向に伸長可能なものを用いれば、当該滑車支持部材を収縮させた状態で機器の側壁の近くで容易に前記巻取り索状体と前記清掃用工具との連結を行うことができ、その連結後に前記清掃用工具の機器内への挿入とともに前記滑車支持部材を伸長させることで、この滑車支持部材に取付けられた滑車及びこの滑車から吊下げられる巻取り装置を前記清掃用工具の中間部位に対応した位置へ容易に移動させることができる。 It is preferable that the pulley is supported by being attached to a pulley support member inserted into the apparatus from an inspection port above the inspection port into which the cleaning tool is inserted. Here, if the pulley supporting member that can be extended in the direction toward the inside of the device is used, the winding cable-like body can be easily formed near the side wall of the device with the pulley supporting member contracted. From the pulley attached to the pulley support member and the pulley, the pulley can be connected to the cleaning tool, and the pulley support member is extended along with the insertion of the cleaning tool into the device after the connection. The suspended winding device can be easily moved to a position corresponding to the intermediate portion of the cleaning tool.

また本発明は、このような清掃方法を実現するための清掃装置を提供する。この清掃装置は、プラント用機器の側壁の内側面に付着した異物に突き当たった状態で当該異物に機械エネルギーを与えることにより当該異物を除去することが可能な先端部を有し、かつ、前記側壁に設けられた点検口から挿入されることにより前記先端部が前記異物に到達することが可能な長さを有する清掃用工具と、当該清掃用工具の長手方向の中間部分に上向きの弾性力を付与することにより、前記異物の除去中に前記清掃用工具の上下方向の動きを許容しながら当該清掃用工具の自重に起因する下向きの力を低減させる弾性力付与装置とを備える。この弾性力付与装置は、巻取り装置と、この巻取り装置を前記清掃用工具の上方の位置に吊下げる吊下げ機構とを有する。前記巻取り装置は、回転可能なドラムと、このドラムに巻き付けられ、かつ、先端部が垂下する巻取り索状体と、この巻取り索状体を上向きに巻き取る向きに前記ドラムの回転方向を付勢する巻取り用ばね部材とを有し、前記巻取り索状体は、直接または別の索状体を介して間接的に前記清掃用工具の中間部位に接続される先端部を有する。 Moreover, this invention provides the cleaning apparatus for implement | achieving such a cleaning method. The cleaning device has a tip portion that can remove the foreign matter by applying mechanical energy to the foreign matter in a state where it hits against the foreign matter attached to the inner surface of the side wall of the plant equipment, and the side wall A cleaning tool having a length that allows the tip portion to reach the foreign object by being inserted from an inspection port provided in the cleaning tool, and an upward elastic force on a longitudinal intermediate portion of the cleaning tool. And an elastic force applying device that reduces a downward force due to the weight of the cleaning tool while allowing the cleaning tool to move in the vertical direction during the removal of the foreign matter. The elastic force applying device includes a winding device and a suspension mechanism that suspends the winding device at a position above the cleaning tool. The winding device includes a rotatable drum, a winding rope wound around the drum and having a tip portion depending thereon, and a rotation direction of the drum in a direction in which the winding rope is wound upward. A winding spring member for biasing the winding member, and the winding rope-like member has a distal end portion connected to the intermediate portion of the cleaning tool directly or indirectly through another rope-like member. .

前記吊下げ機構は、滑車と、前記巻取り装置の上方の位置に前記滑車を支持する滑車支持部材と、この吊下げ用索状体の一方の端が前記巻取り装置に連結され、他端が前記機器の外部に導出されて保持される吊下げ用索状体とを有するものが、好適である。 The suspension mechanism includes a pulley, a pulley support member that supports the pulley at a position above the winding device, and one end of the suspension cord-like body connected to the winding device, and the other end It is preferable to have a hanging rope that is led out and held outside the device.

また、前記清掃用工具は、前記先端部に加え、この先端部が一方の端に固定された工具軸と、振動を生成するための動力を出力する動力源を含む工具本体と、この工具本体と前記工具軸との間に介在し、当該工具軸の他方の端を着脱可能に保持するとともに前記動力源が生成する動力によって前記工具軸をその軸方向と平行な方向に振動させるアタッチメントとを含むものが、好適である。このアタッチメントは、前記動力源の生成する動力によって前記工具軸及びこれに固定された先端部を当該工具軸の軸方向と平行な方向に振動させることにより、当該先端部による異物の除去効果を促進することができる。また、当該アタッチメントは前記工具軸を着脱可能に保持するので、当該工具軸及びこれに固定される先端部の交換が可能であり、これにより、共通の工具本体を用いながら工具軸の長さや先端部の形状を状況に応じて変更することができる。 The cleaning tool includes, in addition to the tip portion, a tool body including a tool shaft having the tip portion fixed to one end, a power source that outputs power for generating vibration, and the tool body. And an attachment that detachably holds the other end of the tool shaft and vibrates the tool shaft in a direction parallel to the axial direction by the power generated by the power source. The inclusion is preferred. The attachment promotes the effect of removing foreign matter by the tip by vibrating the tool shaft and the tip fixed to the tool shaft in a direction parallel to the axial direction of the tool shaft by the power generated by the power source. can do. Further, since the attachment holds the tool shaft so as to be detachable, the tool shaft and the tip fixed to the tool shaft can be exchanged, so that the length and tip of the tool shaft can be changed while using a common tool body. The shape of the part can be changed according to the situation.

前記アタッチメントは、例えば、前記工具軸を着脱可能に保持する保持部と、この保持部と前記工具本体との間に介在する振動変換部とを有し、この振動変換部は、前記保持部及び前記工具本体にそれぞれ連結される端部を両側に有し、かつ、前記保持部及び前記工具本体のうちの少なくとも一方に対して前記工具軸と平行な方向である振動方向に限られた範囲内でのみ相対的に往復動可能となるように連結される連結軸と、その相対的に往復動可能な連結状態を保持するとともに当該往復動を許容するように弾性変形する連結保持用ばね部材と、を有するものが、好適である。 The attachment includes, for example, a holding unit that detachably holds the tool shaft, and a vibration conversion unit that is interposed between the holding unit and the tool body, and the vibration conversion unit includes the holding unit and Within a range limited to a vibration direction that is parallel to the tool axis with respect to at least one of the holding portion and the tool body, with end portions respectively coupled to the tool body on both sides. A connecting shaft connected so as to be relatively reciprocally movable only, and a connection holding spring member that is elastically deformed so as to hold the relatively reciprocally connected state and allow the reciprocating motion. Are preferred.

以上のように、本発明によれば、プラント用機器の側壁に設けられた点検口を利用して当該機器の外部から安全かつ容易に機器内の清掃を行うことが可能な清掃方法、及びこの清掃方法に好適な清掃装置が提供される。 As described above, according to the present invention, a cleaning method capable of safely and easily cleaning the inside of the equipment from the outside of the equipment using the inspection port provided on the side wall of the equipment for the plant, and this A cleaning device suitable for the cleaning method is provided.

本発明の実施の形態に係る減温塔上部の清掃の工程及びその清掃に用いられる装置を示す断面図である。It is sectional drawing which shows the apparatus of cleaning process of the upper part of the temperature reduction tower which concerns on embodiment of this invention, and its cleaning. 前記装置に含まれる清掃用工具を示す側面図である。It is a side view which shows the tool for cleaning contained in the said apparatus. （ａ）は前記装置に含まれる滑車支持部材を示す側面図、（ｂ）は当該滑車支持部材の正面図である。(A) is a side view which shows the pulley support member contained in the said apparatus, (b) is a front view of the said pulley support member. 前記装置に含まれる巻取り装置の斜視図である。It is a perspective view of the winding apparatus contained in the said apparatus. 減温塔における互いに異なる複数の位置で前記清掃の工程が実施される状態を示す断面図である。It is sectional drawing which shows the state in which the said cleaning process is implemented in the mutually different position in a temperature reduction tower. （ａ）は本発明に係る清掃用工具のうちアタッチメントを含む例の詳細を示す図であって当該アタッチメントが完全装着される前の状態を示す一部断面側面図、（ｂ）は当該アタッチメントの完全装着後の状態を示す一部断面側面図である。(A) is a figure which shows the detail of the example containing an attachment among the cleaning tools which concern on this invention, Comprising: The partial cross section side view which shows the state before the said attachment is completely mounted | worn, (b) is the attachment of the said attachment It is a partial cross section side view which shows the state after complete mounting | wearing. （ａ）は前記アタッチメントにおける連結軸を構成する原軸の側面図、（ｂ）は当該連結軸を含む振動変換部の側面図である。(A) is a side view of the original shaft which comprises the connection shaft in the said attachment, (b) is a side view of the vibration conversion part containing the said connection shaft. （ａ）（ｂ）は前記清掃用工具の先端部の形状の例を示す側面図である。(A) (b) is a side view which shows the example of the shape of the front-end | tip part of the said cleaning tool.

本発明の好ましい実施の形態を、図面を参照しながら説明する。 Preferred embodiments of the present invention will be described with reference to the drawings.

図１は、例えばごみ焼却システムの減温塔であるプラント用機器（以下「機器」と称する。）１０の上部を示す。この機器１０は、側壁１２を有し、この側壁１２には互いに高さ位置の異なる複数の点検口（ここではマンホール）が設けられている。これらの点検口のうち、図１は前記機器１０の上端部分に設けられる第１点検口１３及びその上方の第２点検口１４を示している。前記側壁１２には、前記各点検口１３，１４の周囲からそれぞれ外向きに突出する筒部１６が設けられ、各筒部１６の外端から外向きにフランジ部１７が突出している。 FIG. 1 shows an upper part of plant equipment (hereinafter referred to as “equipment”) 10 which is a temperature reducing tower of a waste incineration system, for example. The device 10 has a side wall 12, and a plurality of inspection ports (here, manholes) having different height positions are provided on the side wall 12. Among these inspection ports, FIG. 1 shows a first inspection port 13 provided at the upper end portion of the device 10 and a second inspection port 14 above the first inspection port 13. The side wall 12 is provided with a cylindrical portion 16 projecting outward from the periphery of each inspection port 13, 14, and a flange portion 17 projects outward from the outer end of each cylindrical portion 16.

この実施の形態では、前記側壁１２のうち前記第１点検口１３のやや下方の位置であって当該第１点検口１３と反対側の位置に付着した異物（例えばクリンカ）１８が除去される。この異物１８の除去作業すなわち清掃作業は、この実施の形態では、前記第１点検口１３から機器１０内に挿入される清掃用工具２０と、これに上向きの弾性力を付与するための弾性力付与装置３０とを備える。 In this embodiment, foreign matter (for example, clinker) 18 attached to the side wall 12 at a position slightly below the first inspection port 13 and opposite to the first inspection port 13 is removed. In this embodiment, the foreign matter 18 removal operation, that is, the cleaning operation is performed by the cleaning tool 20 inserted into the device 10 from the first inspection port 13 and an elastic force for applying an upward elastic force thereto. A provisioning device 30.

前記清掃用工具２０は、前記第１点検口１３から挿入された状態で機械的エネルギーである振動エネルギーを前記異物１８に与えてその除去を行うものであり、工具本体２２と、工具軸２４と、先端部２６とを有する。 The cleaning tool 20 removes the cleaning material 20 by applying vibration energy, which is mechanical energy, to the foreign material 18 in a state of being inserted from the first inspection port 13. And a distal end portion 26.

前記工具本体２２は、作業者により把持されることが可能な形状を有するとともに、前記工具軸２４をその軸方向に振動させるためのモータを内蔵する。このモータは、空気圧などの流体圧により駆動されるものでもよいし、電動モータでもよい。 The tool body 22 has a shape that can be gripped by an operator, and incorporates a motor for vibrating the tool shaft 24 in the axial direction. This motor may be driven by fluid pressure such as air pressure, or may be an electric motor.

前記工具軸２４は、前記工具本体２２に装着され、当該工具本体２２が内蔵する前記モータの出力によりその軸方向に振動する。この工具軸２４の工具本体２２側の端部の周囲には、当該工具軸２４を先端部側に付勢するためのコイルばね２８が装着されている。 The tool shaft 24 is mounted on the tool main body 22 and vibrates in the axial direction by the output of the motor built in the tool main body 22. Around the end of the tool shaft 24 on the tool body 22 side, a coil spring 28 for urging the tool shaft 24 toward the tip is mounted.

前記先端部２６は、前記工具軸２４の先端部（前記工具本体２２と反対側の端）に固定され、前記異物１８に突き当てられた状態で前記工具軸２４と一体に振動することにより、前記異物１８を前記側壁１２から剥離させる。図１に示される先端部２６は、鋭利な刃を有するチゼルからなり、その刃が振動しながら前記異物１８に突き当てられることにより当該異物１８のハツリを行う。しかし、この先端部２６は、当該刃を有するものに限られない。例えば、打撃の反復により前記異物１８を破壊して崩落させるハンマー式のものでもよい。 The tip 26 is fixed to the tip of the tool shaft 24 (the end opposite to the tool body 22), and vibrates integrally with the tool shaft 24 in a state of being abutted against the foreign object 18, The foreign material 18 is peeled from the side wall 12. The tip portion 26 shown in FIG. 1 is formed of a chisel having a sharp blade, and the blade 18 is abutted against the foreign material 18 while vibrating, thereby causing the foreign material 18 to be crushed. However, the tip portion 26 is not limited to the one having the blade. For example, a hammer type that destroys and collapses the foreign matter 18 by repeated hitting may be used.

前記工具軸２４は、その軸方向に長尺であり、前記第１点検口１３から前記異物１８に向かって挿入されることにより前記刃部２６を前記異物１８に至らせるだけの軸長を有する。この工具軸２４の適当な中間部位には、上向きに突出する被吊下げ部２５が設けられ、この被吊下げ部２５は水平方向に開口する孔を囲む形状を有する。 The tool shaft 24 is long in the axial direction, and has an axial length that allows the blade portion 26 to reach the foreign material 18 by being inserted from the first inspection port 13 toward the foreign material 18. . A suitable suspended portion 25 of the tool shaft 24 is provided with a suspended portion 25 that protrudes upward. The suspended portion 25 has a shape surrounding a hole that opens in the horizontal direction.

前記弾性力付与装置３０は、前記機器１０内に挿入された清掃用工具２０の工具軸２４の中間部位を吊下げながらこれに上向きの弾性力を付与することにより、当該工具軸２４の上下方向（及び左右方向）の動きを許容しながら当該清掃用工具２０の自重に起因する下向きの力を低減させるためのもので、巻取り装置４０と、この巻取り装置４０を前記清掃用工具２０の上方の位置に吊下げる吊下げ機構５０とを有する。 The elastic force applying device 30 applies an upward elastic force to the intermediate portion of the tool shaft 24 of the cleaning tool 20 inserted into the device 10 while applying an upward elastic force to the tool shaft 24. In order to reduce the downward force caused by the weight of the cleaning tool 20 while allowing the movement in the (and left-right direction), the winding device 40 and the winding device 40 are connected to the cleaning tool 20. The suspension mechanism 50 is suspended at an upper position.

前記巻取り装置４０は、図３に示すように、ドラム４２と、このドラム４２を水平軸回りに回転可能に収容するケーシング４４と、前記ドラム４２に巻き付けられる巻取り索状体４６と、図略の巻取り用ばね部材（ここでは渦巻きばね）とを有する。 As shown in FIG. 3, the winding device 40 includes a drum 42, a casing 44 that accommodates the drum 42 so as to be rotatable about a horizontal axis, a winding cable 46 wound around the drum 42, An approximately winding spring member (here, a spiral spring).

前記巻取り索状体４６は、前記ドラム４２に固定される図略の基端部と、前記ケーシング４４の外部に導出されかつ当該ケーシング４４から垂下する先端部４７とを有し、この先端部４７が前記清掃用工具２０の工具軸２４の被吊下げ部２５に連結される。前記渦巻きばねは、前記ドラム４２に装着され、このドラム４２の回転方向を当該ドラム４２が前記巻取り索状体４６を上向きに巻き取る向きに付勢する。前記先端部４７は、この実施の形態では、前記巻取り索状体４６とは別の索状体である連結用ロープ４８を介して間接的に前記被吊下げ部２５に連結されるが、当該先端部４７は当該被吊下げ部２５に直接連結されてもよい。 The winding rope-like body 46 has a base end (not shown) fixed to the drum 42, and a tip end portion 47 that is led out of the casing 44 and hangs down from the casing 44. 47 is connected to the suspended portion 25 of the tool shaft 24 of the cleaning tool 20. The spiral spring is attached to the drum 42 and biases the rotation direction of the drum 42 in a direction in which the drum 42 winds the winding cord 46 upward. In this embodiment, the distal end portion 47 is indirectly connected to the suspended portion 25 via a connecting rope 48 that is a different cable-like body from the winding rope-like body 46. The tip portion 47 may be directly connected to the suspended portion 25.

前記吊下げ機構５０は、吊下げ用索状体である吊下げロープ５２と、滑車５４と、滑車支持部材６０とを備え、この滑車支持部材６０が前記滑車５４を前記巻取り装置４０の上方の位置に回転可能に支持する。前記吊下げロープ５２は、その途中部分が前記滑車５４に掛けられ、一方の端が前記巻取り装置４０のケーシング４４の上端に連結され、他端が前記第１点検口１３を通じて機器１０の外部に導出され、保持される。 The suspension mechanism 50 includes a suspension rope 52, which is a rope for suspension, a pulley 54, and a pulley support member 60. The pulley support member 60 holds the pulley 54 above the winding device 40. It is supported rotatably at the position of. The suspension rope 52 is halfway on the pulley 54, one end is connected to the upper end of the casing 44 of the winding device 40, and the other end is connected to the outside of the device 10 through the first inspection port 13. Is derived and retained.

前記滑車支持部材６０は、この実施の形態では、前記第１点検口１３の上方の第２点検口１４から前記機器１０内に挿入された状態で前記滑車５４を支持するものであり、支持部材本体６２と、伸縮ロッド６４とを有する。 In this embodiment, the pulley support member 60 supports the pulley 54 while being inserted into the device 10 from the second inspection port 14 above the first inspection port 13. It has a main body 62 and a telescopic rod 64.

支持部材本体６２は、前記機器１０に固定された状態（ここでは第２点検口１４側の筒部１６のフランジ部１７に固定された状態）で前記伸縮ロッド６４を水平方向に伸縮可能に支持するものであり、前記伸縮ロッド６４が挿通可能なスリーブ６５と、前記フランジ部１７に固定される固定部６６とを有する。 The support member main body 62 supports the telescopic rod 64 so that it can be expanded and contracted in the horizontal direction while being fixed to the device 10 (here, fixed to the flange portion 17 of the cylindrical portion 16 on the second inspection port 14 side). A sleeve 65 through which the telescopic rod 64 can be inserted, and a fixing portion 66 fixed to the flange portion 17.

前記固定部６６は、前記スリーブ６５を水平姿勢で保持するスリーブ保持部６６ａと、このスリーブ保持部６６ａの上端に連なるフランジ固定部６６ｂとを有する。フランジ固定部６６ｂは、前記フランジ部１７の上端部に固定可能であり、その固定により前記スリーブ６５は前記フランジ部１７の上端部のすぐ下方の位置に据付けられる。 The fixing portion 66 includes a sleeve holding portion 66a that holds the sleeve 65 in a horizontal posture, and a flange fixing portion 66b that is continuous with the upper end of the sleeve holding portion 66a. The flange fixing portion 66 b can be fixed to the upper end portion of the flange portion 17, and the sleeve 65 is installed at a position immediately below the upper end portion of the flange portion 17 by the fixing.

前記伸縮ロッド６４は、前記フランジ部１７に固定された支持部材本体６２の前記スリーブ６５に沿って水平方向にスライドすることにより、図４（ａ）の二点鎖線に示すように、前記機器１０内に向かって所定のストロークＳだけ伸長することが可能である。この伸縮ロッド６４の先端部には、前記滑車５４がぶら下げられる滑車支持部６７を有し、この滑車支持部６７に取付けられた滑車５４は、前記伸縮ロッド６４の伸長に伴って機器１０の内方へ水平移動する。この実施の形態では、前記伸縮ロッド６４の中間部に照明灯支持部６８が設けられ、この照明灯支持部６８から図１に示す照明灯７０がぶら下げられる。 The telescopic rod 64 slides in the horizontal direction along the sleeve 65 of the support member main body 62 fixed to the flange portion 17, so that the device 10 as shown by a two-dot chain line in FIG. It is possible to extend inward by a predetermined stroke S. The distal end of the telescopic rod 64 has a pulley support portion 67 on which the pulley 54 is suspended. The pulley 54 attached to the pulley support portion 67 is attached to the inside of the device 10 as the telescopic rod 64 extends. Move horizontally toward. In this embodiment, an illuminating lamp support 68 is provided in the middle of the telescopic rod 64, and the illuminating lamp 70 shown in FIG.

次に、この装置を用いた前記異物１８の除去要領、すなわち清掃要領の一例を説明する。ただし、作業の順は必ずしも以下のものに限られない。 Next, an example of a procedure for removing the foreign matter 18, that is, a procedure for cleaning using the apparatus will be described. However, the order of operations is not necessarily limited to the following.

１）準備段階として、ａ）滑車支持部材６０の伸縮ロッド６４が収縮し、ｂ）吊下げロープ５２の中間部が滑車５４に掛けられ、ｃ）当該吊下げロープ５２の一端が巻取り装置４０のケーシング４４の上端に連結され、かつ、ｄ）この巻取り装置４０の巻取り索状体４６の先端部４７に連結用ロープ４８の上端が連結された状態で、滑車支持部材６０が機器１０の外部から第２点検口１４を通じて機器１０内に挿入される。この挿入により、前記滑車５４は前記第２点検口１４のすぐ内方に位置する。また、前記吊下げロープ５２の他端は第１点検口１３を通じて機器１０の外部に導出され、仮保持される。 1) As a preparatory stage, a) the telescopic rod 64 of the pulley support member 60 contracts, b) the intermediate portion of the suspension rope 52 is hung on the pulley 54, and c) one end of the suspension rope 52 is the winding device 40. And d) the pulley support member 60 is connected to the device 10 in a state in which the upper end of the connecting rope 48 is connected to the distal end portion 47 of the winding cable 46 of the winding device 40. Is inserted into the device 10 from the outside through the second inspection port 14. By this insertion, the pulley 54 is positioned immediately inside the second inspection port 14. The other end of the suspension rope 52 is led out of the device 10 through the first inspection port 13 and temporarily held.

２）清掃用工具２０が先端部２６を先頭にして第１点検口１３から機器１０内に挿入される。この段階では、前記清掃用工具２０の工具軸２４の中間部位にある被吊下げ部２５が前記第１点検口１３のすぐ内方に位置する深さまで清掃用工具２０の挿入が行われる。 2) The cleaning tool 20 is inserted into the device 10 from the first inspection port 13 with the front end 26 as the head. At this stage, the cleaning tool 20 is inserted to such a depth that the suspended portion 25 at the intermediate portion of the tool shaft 24 of the cleaning tool 20 is located just inward of the first inspection port 13.

３）２）の状態で、当該第１点検口１３を通じて、当該被吊下げ部２５に前記連結用ロープ４８の下端を連結する作業が機器１０の外部から行われる。これにより、巻取り装置４０が巻取り索状体４６を巻き取る力が連結用ロープ４８を介して前記被吊下げ部２５に上向きの弾性力として作用する状態となる。 3) In the state of 2), the operation of connecting the lower end of the connecting rope 48 to the suspended portion 25 through the first inspection port 13 is performed from the outside of the device 10. As a result, the force by which the winding device 40 winds the winding rope-like body 46 acts as an upward elastic force on the suspended portion 25 via the connecting rope 48.

４）前記清掃用工具２０の先端部２６が目標となる異物１８に突き当たる位置（図１に示す位置）までさらに清掃用工具２０が挿入される。この挿入に伴い、滑車支持部材６０の伸縮ロッド６４を伸長させることにより、当該伸縮ロッド６４に取付けられた滑車５４を前記清掃用工具２０の挿入にかかわらず前記被吊下げ部２５の上方の位置（すなわち当該被吊下げ部２５の吊下げに好適な位置）まで進めることができる。 4) The cleaning tool 20 is further inserted to the position where the tip end portion 26 of the cleaning tool 20 abuts against the target foreign object 18 (the position shown in FIG. 1). Along with this insertion, the telescopic rod 64 of the pulley support member 60 is extended so that the pulley 54 attached to the telescopic rod 64 is positioned above the suspended portion 25 regardless of the insertion of the cleaning tool 20. That is, it can be advanced to (that is, a position suitable for suspending the suspended portion 25).

５）前記巻取り装置４０の高さ位置は、前記吊下げロープ５２の操作によって調節が可能であり、その高さ位置は、前記巻取り装置４０の巻取り力が前記被吊下げ部２５に上向きの弾性力として作用することが可能な位置、換言すれば、当該巻取り装置４０の巻取り索状体４６が前記清掃用工具４０の当該巻取り装置４０の渦巻きばねの弾性力に抗してある程度引出される位置に調節される。 5) The height position of the winding device 40 can be adjusted by operating the suspension rope 52, and the height position is determined by the winding force of the winding device 40 applied to the suspended portion 25. The position where it can act as an upward elastic force, in other words, the winding rope 46 of the winding device 40 resists the elastic force of the spiral spring of the winding device 40 of the cleaning tool 40. The position is adjusted to a certain extent.

６）５）の状態で、工具本体２２内のモータを作動させて工具軸２４及び先端部２６を振動させるとともに、当該先端部２６を上下左右に適当に動かすことで、異物１８の除去作業を進めることができる。すなわち、作業者は、機器１０の外部において第１点検口１３の近傍に設置された既存の作業場から機器１０内の清掃を行うことが可能であり、よって機器１０の内部に新たな足場を組む必要がない。 6) In the state of 5), the motor in the tool main body 22 is operated to vibrate the tool shaft 24 and the tip portion 26, and the tip portion 26 is appropriately moved up and down and left and right to remove the foreign matter 18. Can proceed. That is, the worker can clean the inside of the device 10 from the existing work place installed in the vicinity of the first inspection port 13 outside the device 10, and thus assemble a new scaffold inside the device 10. There is no need.

ここで、前記清掃用工具２０はきわめて長尺であって、当該工具２０には大きな重力が作用するが、当該工具２０の工具軸２２の中間部位の被吊下げ部２５には弾性力付与装置３０における巻取り装置４０の巻取り力に相当する上向きの弾性力が付与されているから、当該弾性力と前記重力との相殺により、作業者が把持している工具本体２２に作用する下向きのモーメントは小さい。従って、作業者は、当該清掃用工具２０が長尺であるにもかかわらず、その先端部を軽い力で上下左右に操作することが可能である。 Here, the cleaning tool 20 is very long and a large amount of gravity acts on the tool 20, but an elastic force applying device is applied to the suspended portion 25 at the intermediate portion of the tool shaft 22 of the tool 20. Since an upward elastic force corresponding to the winding force of the winding device 40 at 30 is applied, the downward force acting on the tool body 22 held by the operator is offset by the cancellation of the elastic force and the gravity. The moment is small. Therefore, the operator can operate the tip part up, down, left, and right with a light force even though the cleaning tool 20 is long.

この効果は、例えば前記巻取り装置４０を省略して単純にコイルばねを適所（例えば吊下げロープ５２と機器１０との間）に介在させることによっても、得ることが可能であるが、前記巻取り装置４０の使用は、この巻取り装置４０自身がバランスウエイトとして機能することにより、清掃用工具２０の姿勢を安定させることができるという利点がある。すなわち、前記滑車５４と前記被吊下げ部２５との間に介在する巻取り装置４０は、その慣性により、前記清掃用工具２０がそれ自身の生成する振動等に起因して揺れ動くのを抑制することが可能であり、これにより、清掃用工具２０の位置を安定させて作業を容易にすることができる。 This effect can be obtained, for example, by omitting the winding device 40 and simply interposing a coil spring at an appropriate position (for example, between the suspension rope 52 and the device 10). The use of the take-up device 40 has an advantage that the posture of the cleaning tool 20 can be stabilized when the take-up device 40 itself functions as a balance weight. That is, the winding device 40 interposed between the pulley 54 and the suspended portion 25 suppresses the swing of the cleaning tool 20 due to vibrations generated by the cleaning tool 20 due to its inertia. This makes it possible to stabilize the position of the cleaning tool 20 and facilitate the work.

また、本発明では、前記滑車５４を省略することも可能であり、例えば図１に示される伸縮ロッド６４の先端から直接巻取り装置４０を吊下げることも可能であるが、前記滑車５４及びこれに掛けられる吊下げロープ５２の使用は、巻取り装置４０の高さ位置の調節を機器１０の外部から（図１では第１点検口１３の作業場から）容易に行うことを可能にする。具体的には、当該吊下げロープ５２を適宜引張り、あるいは繰り出すことにより、巻取り装置４０を上下させることができ、その調節後に適当な部位（例えばフランジ部１７）に固定することで、前記巻取り装置４０の高さ位置を固定することが可能である。あるいは、前記吊下げロープ５２の端を作業場に設置されたウインチのドラムに固定すれば、このウインチによる吊下げロープ５２の巻上げ／巻下げによって前記巻取り装置４０を上下させることができる。 In the present invention, the pulley 54 can be omitted. For example, the winding device 40 can be hung directly from the tip of the telescopic rod 64 shown in FIG. The use of the hanging rope 52 that is hung on the hoist makes it possible to easily adjust the height position of the winding device 40 from the outside of the device 10 (from the work place of the first inspection port 13 in FIG. 1). Specifically, the winding device 40 can be moved up and down by appropriately pulling or unwinding the suspension rope 52, and after the adjustment, the winding device 40 is fixed to an appropriate part (for example, the flange portion 17). It is possible to fix the height position of the picking device 40. Alternatively, if the end of the suspension rope 52 is fixed to the drum of the winch installed in the work place, the winding device 40 can be moved up and down by winding / lowering the suspension rope 52 by the winch.

図５は、前記滑車５４の使用による巻取り装置４０の高さ位置の調節を有効に利用する施工例を示している。同図は、対象機器として全高の大きい減温塔８０の上部を示しており、点検口として上から順に４つの点検口８１，８２，８３，８４が示されている。前記滑車支持部材６０は最上の点検口８１から減温塔８０内に挿入されており、この滑車支持部材６０及びこれに使用される滑車５４を共通に用いて、上から２番目の点検口８２より斜め下向きに清掃用工具２０を挿入することによる異物１８Ａの除去作業（同図実線）と、上から３番目の点検口８３より水平方向に清掃用工具２０を挿入することによる前記異物１８Ａの除去作業（同図二点鎖線）と、さらに下側の点検口８４よりやや上向きに清掃用工具２０を挿入することによる、前記異物１８Ａよりも下側の部位に付着した異物１８Ｂの除去作業（同図二点鎖線）と、を行うことができる。 FIG. 5 shows a construction example in which the adjustment of the height position of the winding device 40 by using the pulley 54 is effectively used. This figure shows the upper part of the temperature reducing tower 80 having a large overall height as the target device, and four inspection ports 81, 82, 83, 84 are shown in order from the top as the inspection ports. The pulley support member 60 is inserted into the temperature reducing tower 80 from the uppermost inspection port 81, and the second inspection port 82 from the top is commonly used by using the pulley support member 60 and the pulley 54 used therefor. The foreign matter 18A removal operation (solid line in the figure) by inserting the cleaning tool 20 more obliquely downward, and the foreign matter 18A by inserting the cleaning tool 20 in the horizontal direction from the third inspection port 83 from the top. Removal work (two-dot chain line in the same figure) and further removal work of foreign matter 18B adhering to the lower part of the foreign matter 18A by inserting the cleaning tool 20 slightly upward from the lower inspection port 84 ( The two-dot chain line in FIG.

すなわち、図５に例示される３つの作業は、その作業位置（高さ位置）が互いに大きく異なるにもかかわらず、当該滑車５４からの巻取り装置４０の吊下げ長さを変える（吊下げロープ５２を操作する、もしくは長さの異なるロープに交換する）ことによって、最上の点検口８１から挿入される滑車支持部材６０及び滑車５４を動かすことなく遂行することが可能である。このことは、作業効率の向上に大きく寄与する。 That is, in the three operations illustrated in FIG. 5, the suspension length of the winding device 40 from the pulley 54 is changed even though the operation positions (height positions) are greatly different from each other (the suspension rope). It is possible to carry out the operation without moving the pulley support member 60 and the pulley 54 inserted from the uppermost inspection port 81. This greatly contributes to improvement of work efficiency.

また、本実施形態に係る清掃装置がプラント用機器と接続される部分は滑車支持部材のみであり、かつ、この部分が機器設備（例えばフランジ部）に脱着可能であることから、特別な機器を用いることなく、本清掃方法及び装置を既存の設備に適用することが可能である。 In addition, since the cleaning device according to the present embodiment is connected to the plant equipment only by the pulley support member, and since this part can be attached to and detached from equipment equipment (for example, a flange portion), a special equipment is used. This cleaning method and apparatus can be applied to existing equipment without using it.

本発明に係る清掃用工具の具体的な形状や構造は図２に示した清掃用工具２０のそれに限定されない。例えば、図６（ａ）（ｂ）に示すような清掃用工具２０′によれば、下記のような優れた効果を得ることが可能である。 The specific shape and structure of the cleaning tool according to the present invention are not limited to that of the cleaning tool 20 shown in FIG. For example, according to the cleaning tool 20 ′ as shown in FIGS. 6A and 6B, the following excellent effects can be obtained.

この清掃用工具２０′は、前記清掃用工具２０に含まれる工具本体２２、工具軸２４、及び先端部２６に加え、当該工具本体２２と当該工具軸２４との間に介在するアタッチメント１００を具備する。このアタッチメント１００は、前記工具軸２４の基端（すなわち先端と反対側の端）を着脱可能に保持するとともに、前記工具本体２２が内蔵する動力源が生成する動力によって前記工具軸２４をその軸方向と平行な方向（以下「振動方向」と称する。）に振動させるものであり、保持部１１０と、連結軸１２０と、一対の引張コイルばね１３０とを有する。 The cleaning tool 20 ′ includes an attachment 100 interposed between the tool body 22 and the tool shaft 24 in addition to the tool body 22, the tool shaft 24, and the tip end portion 26 included in the cleaning tool 20. To do. The attachment 100 detachably holds the base end of the tool shaft 24 (that is, the end opposite to the tip) and attaches the tool shaft 24 to the shaft by the power generated by the power source built in the tool body 22. It vibrates in a direction parallel to the direction (hereinafter referred to as “vibration direction”), and includes a holding portion 110, a connecting shaft 120, and a pair of tension coil springs 130.

前記保持部１１０は、前記工具軸２４の基端を着脱可能に保持する保持部を構成するもので、全体が筒状をなす。具体的には、前記工具軸２４の基端が挿入可能な内径をもつ工具軸挿入部１１４と、この工具軸挿入部１１４よりも小さい内径をもつ連結軸挿入部１１２とを前後に連続して有する。図例では、前記工具軸２４は中空の筒状であり、その基端部が前記工具軸挿入部１１４に挿入された状態でこれを径方向に貫通するボルト１１６と当該ボルト１１６に装着されるダブルナット１１８とにより固定される。また、前記連結軸挿入部１１２の外周面には前記引張コイルばね１３０の形状に対応した螺旋状の凹溝１１３が形成されている。同様に工具本体２２の外周面上にも凹溝が形成されている。 The holding part 110 constitutes a holding part that detachably holds the base end of the tool shaft 24 and is entirely cylindrical. Specifically, a tool shaft insertion portion 114 having an inner diameter into which the proximal end of the tool shaft 24 can be inserted, and a connecting shaft insertion portion 112 having an inner diameter smaller than the tool shaft insertion portion 114 are continuously provided in the front-rear direction. Have. In the illustrated example, the tool shaft 24 has a hollow cylindrical shape, and the base end portion of the tool shaft 24 is inserted into the tool shaft insertion portion 114 in the radial direction, and is attached to the bolt 116. It is fixed by a double nut 118. A spiral groove 113 corresponding to the shape of the tension coil spring 130 is formed on the outer peripheral surface of the connecting shaft insertion portion 112. Similarly, a concave groove is formed on the outer peripheral surface of the tool body 22.

前記連結軸１２０は、前記保持部１１０と前記工具本体２２との間に介在し、前記引張コイルばね１３０とともに振動変換部を構成するものである。この連結軸１２０の長手方向の中央部位には他の部分よりも大径の大径部１２１が設けられ、同様に前記工具本体２２側の端の近傍部位及び前記保持部１１０側の端の近傍部位にもそれぞれ大径部１２２，１２４が設けられている。 The connecting shaft 120 is interposed between the holding part 110 and the tool main body 22 and constitutes a vibration converting part together with the tension coil spring 130. A central portion 121 in the longitudinal direction of the connecting shaft 120 is provided with a large-diameter portion 121 having a larger diameter than other portions, and similarly, a portion near the end on the tool body 22 side and a portion near the end on the holding portion 110 side. Large portions 122 and 124 are also provided in the respective parts.

この連結軸１２０のうち前記大径部１２２よりも外側の部分（工具本体側端部１２３）が前記工具本体２２に設けられた軸挿入孔に挿入されることにより、図６（ａ）（ｂ）に示すように前記大径部１２２が前記工具本体２２に当接する位置から所定ストローク（当該端部が当該軸挿入孔から離脱しない範囲）で前記振動方向に往復動可能となるように当該工具本体側端部が当該工具本体２２に連結される。同様に、この連結軸１２０のうち前記大径部１２４よりも外側の部分（保持部側端部１２５）が前記保持部１１０の連結軸挿入部１１２内に挿入されることにより、図６（ａ）（ｂ）に示すように前記大径部１２４が前記保持部１１０に当接する位置から所定ストローク（当該端部が当該連結軸挿入部１１２から離脱しない範囲）で前記振動方向に往復動可能となるように当該保持部側端部１２５が当該保持部１１０に連結される。 By inserting a portion (tool body side end portion 123) outside the large diameter portion 122 of the connecting shaft 120 into a shaft insertion hole provided in the tool body 22, FIGS. ), The tool can be reciprocated in the vibration direction within a predetermined stroke (a range in which the end portion does not separate from the shaft insertion hole) from a position where the large diameter portion 122 abuts on the tool main body 22. The main body side end is connected to the tool main body 22. Similarly, a portion (holding portion side end portion 125) outside the large-diameter portion 124 of the connecting shaft 120 is inserted into the connecting shaft insertion portion 112 of the holding portion 110, whereby FIG. ) As shown in (b), it is possible to reciprocate in the vibration direction from the position where the large-diameter portion 124 abuts on the holding portion 110 within a predetermined stroke (the range where the end portion does not separate from the connecting shaft insertion portion 112). The holding part side end 125 is connected to the holding part 110 so as to be.

前記各引張コイルばね１３０は、前記大径部１２２と前記工具本体２２との間、及び、前記大径部１２４と前記保持部１１０との間、にそれぞれまたがって配設される。具体的に、工具本体２２側の引張コイルばね３０の一方の端部は、当該工具本体２２の外周面上に設けられた凹溝に嵌め込まれ、他方の端部は前記大径部１２２に被さるようにしてこれに固定される。同様に、保持部１１０側の引張コイルばね３０の一方の端部は、当該保持部１１０の凹溝１１３に嵌め込まれ、他方の端部は前記大径部１２４に被さるようにしてこれに固定される。このようにして配設された引張コイルばね１３０は、前記工具本体２２と前記工具本体側端部１２３との連結状態、及び、前記保持部１１０と前記保持部側端部１２５との連結状態をそれぞれ保持するとともに、前記所定ストローク内での相対的な往復動を許容するように伸縮方向に弾性変形する。 Each of the tension coil springs 130 is disposed across the large diameter portion 122 and the tool main body 22 and between the large diameter portion 124 and the holding portion 110. Specifically, one end portion of the tension coil spring 30 on the tool body 22 side is fitted into a concave groove provided on the outer peripheral surface of the tool body 22, and the other end portion covers the large diameter portion 122. It is fixed in this way. Similarly, one end portion of the tension coil spring 30 on the holding portion 110 side is fitted into the concave groove 113 of the holding portion 110, and the other end portion is fixed to the large diameter portion 124 so as to be covered. The The tension coil spring 130 arranged in this way has a connection state between the tool body 22 and the tool body side end 123 and a connection state between the holding part 110 and the holding part side end 125. Each is held and elastically deformed in the expansion / contraction direction so as to allow relative reciprocation within the predetermined stroke.

このアタッチメント１００は、例えば次のようにして製造されることが可能である。 This attachment 100 can be manufactured as follows, for example.

１）図７（ａ）に示すような原軸（連結軸１２０の元となる軸）１２０′を用意する。この連結軸１２０′は、工具本体側（図７（ａ）では右側）から順に、前記工具本体側端部１２３、前記大径部１２２、本体部１２６、および小径部１２７を一体に有する。 1) Prepare a master shaft 120 ′ as a base of the connecting shaft 120 as shown in FIG. The connecting shaft 120 'integrally includes the tool main body side end portion 123, the large diameter portion 122, the main body portion 126, and the small diameter portion 127 in order from the tool main body side (right side in FIG. 7A).

２）保持部側（図７（ａ）（ｂ）では左側）から一方の引張コイルばね１３０を前記大径部１２２の付近まで進め、その後に、大径部１２１を構成するカラーを前記本体部１２６の中央部位の外側に例えば締まり嵌めによって固定する。 2) One tension coil spring 130 is advanced to the vicinity of the large-diameter portion 122 from the holding portion side (left side in FIGS. 7A and 7B), and then the collar constituting the large-diameter portion 121 is moved to the main body portion. It fixes to the outer side of the center part of 126, for example by interference fitting.

３）保持部側から他方の引張コイルばね１３０を前記カラー（大径部１２１）の手前まで進め、その後に、大径部１２４を構成するカラーを前記本体部１２６と前記小径部１２７とに跨る部位の外側に例えば締まり嵌めによって固定する。これにより、図７（ｂ）に示すような振動伝達部が完成する。 3) Advance the other tension coil spring 130 from the holding portion side to the front of the collar (large diameter portion 121), and then straddle the collar constituting the large diameter portion 124 over the main body portion 126 and the small diameter portion 127. It is fixed to the outside of the part by, for example, an interference fit. Thereby, the vibration transmission part as shown in FIG.7 (b) is completed.

４）図６（ａ）に示すように連結軸１２０の工具本体側端部１２３及び保持部側端部１２５をそれぞれ工具本体２２の軸挿入孔及び保持部１１０の連結軸挿入部１１２内に挿入し、さらに、この状態から各引張コイルばね１３０を工具本体２２の螺旋状の凹溝及び保持部１１０の螺旋状の凹溝１１３に嵌め込む。 4) As shown in FIG. 6A, the tool body side end portion 123 and the holding portion side end portion 125 of the connection shaft 120 are inserted into the shaft insertion hole of the tool body 22 and the connection shaft insertion portion 112 of the holding portion 110, respectively. Further, from this state, the respective tension coil springs 130 are fitted into the spiral concave grooves of the tool body 22 and the spiral concave grooves 113 of the holding portion 110.

このようなアタッチメント１００を備えた清掃用工具２０′において、工具本体２２が内蔵する動力源が出力する動力は、前記連結軸１２０を前記振動方向に振動させ、この振動は工具軸２４に伝えられて当該工具軸２４及びその先端に固定された先端部２６を前記振動方向に振動させる。この振動は、当該先端部２６による異物１８（図１）の剥離効果を促進する。 In the cleaning tool 20 ′ having such an attachment 100, the power output from the power source built in the tool body 22 causes the connecting shaft 120 to vibrate in the vibration direction, and this vibration is transmitted to the tool shaft 24. Thus, the tool shaft 24 and the tip 26 fixed to the tip thereof are vibrated in the vibration direction. This vibration promotes the peeling effect of the foreign matter 18 (FIG. 1) by the tip portion 26.

前記カラーの固定方法は締まり嵌めに限定されない。しかし、溶接を用いない固定は、カラー部分が振動により外れることが無いという利点がある。 The fixing method of the collar is not limited to an interference fit. However, fixing without using welding has an advantage that the collar portion does not come off due to vibration.

前記アタッチメント１００の保持部１１０は、前記工具軸２４を着脱可能に保持するので、当該工具軸２４及びこれに固定される先端部２６の交換が可能であり、これにより、共通の工具本体を用いながら工具軸２４の長さや先端部２６の形状を状況に応じて変更することができる。例えば、先端部２６として、図６，図７及び図８（ａ）に示すような先尖りの円錐状の先端２６ａをもつものや、図８（ｂ）に示すような平型刃先２６ｂをもつものを状況に応じて使い分けることが可能である。 Since the holding part 110 of the attachment 100 holds the tool shaft 24 in a detachable manner, the tool shaft 24 and the tip 26 fixed to the tool shaft 24 can be exchanged, thereby using a common tool body. However, the length of the tool shaft 24 and the shape of the tip portion 26 can be changed according to the situation. For example, the tip portion 26 has a pointed conical tip 26a as shown in FIGS. 6, 7 and 8A, or a flat blade 26b as shown in FIG. 8B. It is possible to use different things depending on the situation.

なお、前記連結軸１２０については、必ずしもその両端部がそれぞれ工具本体２２と保持部１１０とに相対移動（往復動）可能に連結されていなくてもよい。例えば連結軸１２０が工具本体２２及び保持部１１０のいずれか一方に（例えば溶接により）リジッドに固定されていても、他方に対して相対的に往復動可能に連結されていれば、振動の伝達が可能である。 Note that both ends of the connecting shaft 120 do not necessarily have to be connected to the tool body 22 and the holding part 110 so as to be capable of relative movement (reciprocating). For example, even if the connecting shaft 120 is rigidly fixed to one of the tool body 22 and the holding unit 110 (for example, by welding), if the connection shaft 120 is connected to the other so as to be reciprocally movable, vibration transmission is possible. Is possible.

前記連結軸１２０と前記保持部１１０は一体に形成されてもよい。例えば、これらは単一の部材から削り出されたものでもよい。 The connecting shaft 120 and the holding part 110 may be integrally formed. For example, they may be cut out from a single member.

また、本発明が適用されるプラント用機器は減温塔に限定されない。例えば、本発明は、焼却炉や溶融炉、ボイラーなどのプラント用機器に適用されることも可能である。 Moreover, the plant equipment to which the present invention is applied is not limited to the temperature reducing tower. For example, the present invention can be applied to plant equipment such as an incinerator, a melting furnace, and a boiler.

１０プラント用機器
１２側壁
１３第１点検口
１４第２点検口
１８，１８Ａ，１８Ｂ異物
２０清掃用工具
２２工具本体
２４工具軸
２５被吊下げ部
２６先端部
３０弾性力付与装置
４０巻取り装置
４２ドラム
４６索状体
４７連結用ロープ（別の索状体）
５０吊下げ機構
５２吊下げロープ（吊下げ用索状体）
５４滑車
６０滑車支持部材
７０照明灯
８０減温塔
８１〜８４点検口
１００アタッチメント
１１０保持部
１１２連結軸挿入部
１１３凹溝
１１４工具軸挿入部
１１６ボルト
１１８ダブルナット
１２０連結軸
１３０引張コイルばね（連結保持用ばね部材） DESCRIPTION OF SYMBOLS 10 Plant equipment 12 Side wall 13 1st inspection port 14 2nd inspection port 18, 18A, 18B Foreign material 20 Cleaning tool 22 Tool main body 24 Tool shaft 25 Suspended part 26 Tip part 30 Elastic force application apparatus 40 Winding apparatus 42 Drum 46 Cord 47 Connecting rope (another cord)
50 Suspension mechanism 52 Suspension rope (suspending rope)
54 Pulley 60 Pulley support member 70 Illumination lamp 80 Temperature reducing tower 81-84 Inspection port 100 Attachment 110 Holding portion 112 Connecting shaft insertion portion 113 Concave groove 114 Tool shaft insertion portion 116 Bolt 118 Double nut 120 Connection shaft 130 Tension coil spring (connection) Holding spring member)

Claims

A cleaning method for removing foreign matter adhering to the inner surface of plant equipment having a side wall provided with an inspection port,
Inserting a cleaning tool from the inspection port and abutting the tip of the cleaning tool against the foreign matter adhering to the inner surface of the device, giving mechanical energy to the foreign matter and removing it,
Connecting a cord-like body to a longitudinal intermediate portion of the cleaning tool, and applying an upward elastic force to the cleaning tool via the cord-like body by a spring member biasing the cord-like body upward And reducing the downward force due to the weight of the cleaning tool while allowing the cleaning tool to move in the vertical direction during the removal of the foreign matter.

In the cleaning method of the plant equipment of Claim 1,
The upward elastic force is applied to the intermediate portion of the cleaning tool by suspending a winding device including the spring member above the cleaning tool and connecting the winding device and the intermediate portion. The winding device includes a rotatable drum, a winding rope wound around the drum, and a tip portion depending on the drum, and the winding rope as the spring member is wound upward. A plant device having a winding spring member for biasing the rotation direction of the drum in a direction to be taken, and having a tip end portion of the winding rope connected to an intermediate portion of the cleaning tool Cleaning method.

In the cleaning method of the plant equipment of Claim 2,
In the suspension of the winding device, the winding device is connected to one end of a suspension rope that is different from the winding rope, and the suspension rope is connected to the winding device. A cleaning method for plant equipment, which is carried out by drawing and holding the hanging rope-like body outside the equipment in a state of being hung on a pulley provided above the equipment.

4. The plant equipment cleaning method according to claim 3, wherein the pulley is supported by being attached to a pulley support member inserted into the equipment from an inspection port above the inspection port into which the cleaning tool is inserted. A cleaning method for plant equipment.

The plant equipment cleaning method according to claim 4, wherein the pulley support member is capable of extending in a direction toward the inside of the equipment.

A cleaning device for removing foreign matter adhering to the inner surface of plant equipment having a side wall provided with an inspection port,
An inspection provided on the side wall having a tip portion that can remove the foreign matter by applying mechanical energy to the foreign matter in a state where it hits the foreign matter adhering to the inner surface of the side wall of the plant equipment. A cleaning tool having a length that allows the tip to reach the foreign object by being inserted from a mouth;
By applying an upward elastic force to the longitudinal intermediate portion of the cleaning tool, the cleaning tool is allowed to move in the vertical direction while removing the foreign matter, and downward due to the weight of the cleaning tool. An elastic force applying device that reduces the force of
The elastic force applying device includes a winding device and a suspension mechanism that suspends the winding device at a position above the cleaning tool. The winding device includes a rotatable drum and the drum. A winding rope that is wound around and the tip portion hangs down, and a winding spring member that urges the rotation direction of the drum in a direction to wind up the winding rope. The said winding rope-like body is a cleaning apparatus of the plant equipment which has a front-end | tip part connected to the intermediate part of the said cleaning tool directly or indirectly through another rope-like body.

In the cleaning apparatus of the plant equipment of Claim 6,
The suspension mechanism includes a pulley, a pulley support member that supports the pulley at a position above the winding device, and one end of the suspension cord-like body connected to the winding device, and the other end A device for cleaning plant equipment, comprising: a hanging cord that is led out and held outside the equipment.

In the cleaning apparatus for plant equipment according to claim 6 or 7,
The cleaning tool includes, in addition to the tip, a tool shaft having the tip fixed to one end, a tool body including a power source that outputs power for generating vibration, the tool body, and the tool An attachment that is interposed between the tool axis and detachably holds the other end of the tool axis and vibrates the tool axis in a direction parallel to the axial direction by the power generated by the power source. Cleaning equipment for plant equipment.

The cleaning apparatus for plant equipment according to claim 8,
The attachment includes a holding unit that detachably holds the tool shaft, and a vibration conversion unit that is interposed between the holding unit and the tool body, and the vibration conversion unit includes the holding unit and the tool. Only within a range limited to a vibration direction that is parallel to the tool axis with respect to at least one of the holding portion and the tool main body, and has end portions respectively connected to the main body. A connecting shaft that is connected so as to be relatively reciprocally movable, and a connection holding spring member that is elastically deformed so as to allow the reciprocating motion while maintaining the relatively reciprocally connected state. A cleaning device for plant equipment.