JPH055358A - Scaffolding beam inserting device, and installation of scaffolding beam therewith - Google Patents
Scaffolding beam inserting device, and installation of scaffolding beam therewithInfo
- Publication number
- JPH055358A JPH055358A JP18190091A JP18190091A JPH055358A JP H055358 A JPH055358 A JP H055358A JP 18190091 A JP18190091 A JP 18190091A JP 18190091 A JP18190091 A JP 18190091A JP H055358 A JPH055358 A JP H055358A
- Authority
- JP
- Japan
- Prior art keywords
- scaffolding
- boiler furnace
- scaffolding beam
- boiler
- wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Movable Scaffolding (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ボイラ炉内を点検する
ための足場用梁挿入装置及び該装置による足場用梁架設
方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffolding beam insertion device for inspecting the inside of a boiler furnace and a scaffolding beam installation method using the device.
【０００２】[0002]
【従来の技術】従来、下記の如くしてボイラ炉内点検用
足場を組立てていた。2. Description of the Related Art Conventionally, scaffolds for inspecting boiler furnaces have been assembled as follows.
【０００３】即ち、ボイラ炉内の点検を行う場合には、
ボイラの操業を停止し、ボイラ炉内で作業を行うことが
できる温度にボイラ炉内の温度が下がってから作業員が
ボイラ炉１内に入って図１０に示す如くホッパー２内に
下側足場ベース３を構築し、炉壁管及び隣接炉壁管の連
結用フィンからなる炉壁４の内面に沿い下側足場ベース
３から順次上方に向い足場枠５を水管ノーズ部６の下側
まで組上げて行き、この組上げた最上部の足場枠５，５
間に足場用梁を掛け渡し足場板を載置固定して上側足場
ベース７を構築し、更に該上側足場ベース７から順次上
方に向い足場枠５’を組上げて足場を組立て、各足場枠
５’や上側足場ベース７からボイラ炉１内上方に設置さ
れた過熱器や再熱器８の点検、補修及び炉壁４の内面や
バーナ等に付着したクリンカの掻き落し等を行ってい
た。図中９はドラム、１０は建屋壁を示す。That is, when inspecting the inside of the boiler furnace,
After the boiler operation is stopped and the temperature in the boiler furnace falls to a temperature at which the boiler furnace can be operated, the worker enters the boiler furnace 1 and the lower scaffolding in the hopper 2 as shown in FIG. The base 3 is constructed, and the scaffolding frame 5 is assembled to the lower side of the water pipe nose portion 6 from the lower scaffolding base 3 to the upper side along the inner surface of the furnace wall 4 consisting of the fins for connecting the furnace wall pipe and the adjacent furnace wall pipe. Going forward, this assembled top scaffolding frame 5,5
A scaffolding beam is laid between the scaffolding plates to fix the scaffolding plate, and an upper scaffolding base 7 is constructed. Further, scaffolding frames 5 ′ facing upward from the upper scaffolding base 7 are assembled to assemble scaffolding 5 'Or the upper scaffolding base 7 to inspect and repair the superheater and the reheater 8 installed above the boiler furnace 1, and scrape off the clinker adhering to the inner surface of the furnace wall 4 and the burner. In the figure, 9 indicates a drum and 10 indicates a building wall.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上述の
従来のボイラ炉内点検用足場組立て方法によると、ボイ
ラ炉内温度がボイラ炉内で作業を行うことができる温度
に下がるまで作業員が待機せねばならないため、ボイラ
停止後直ちに足場の組立てを行うことができず、しかも
下方から上方に順次足場を組立てるので足場を組立てる
のに時間を要し、そのためにボイラ炉内点検作業に取掛
かるのが遅くなって能率が悪くなり、ボイラ炉内の温度
の降下及び足場の組立て解体に多大の時間を要するので
ボイラ操業停止時間が非常に長くなり、更に上側足場ベ
ース７に足場を組立ててからでないと過熱器や再熱器８
の点検、補修を行うことができないため、過熱器や再熱
器８に蒸気漏れ等のトラブルが生じた場合に素速く対処
できない、等という問題点があった。However, according to the above-described conventional scaffold assembly method for inspecting a boiler furnace, the worker waits until the temperature in the boiler furnace falls to a temperature at which work can be performed in the boiler furnace. Since it is necessary to assemble scaffolds immediately after the boiler is stopped, the scaffolds are assembled sequentially from the bottom to the top, so it takes time to assemble the scaffolds, and therefore it is necessary to start the inspection work inside the boiler furnace. It becomes slower and less efficient, and it takes a lot of time to lower the temperature in the boiler furnace and disassemble and scaffold the scaffolding. Therefore, the boiler shutdown time becomes very long, and the scaffolding must be assembled on the upper scaffolding base 7. Superheater and reheater 8
However, there is a problem in that it is not possible to quickly deal with a trouble such as a steam leak in the superheater or the reheater 8 because the inspection and repair cannot be performed.
【０００５】本発明は、上述の実情に鑑み、ボイラ操業
停止時間の短縮化を図り得られると共に、ボイラ炉内点
検用足場を短時間で組立てられる、足場用梁挿入装置及
び該装置による足場用梁架設方法を提供することを目的
とするものである。In view of the above situation, the present invention can shorten the boiler operation stop time and can assemble a scaffold for inspecting a boiler furnace in a short time, and a scaffolding beam insertion device and a scaffolding by the device. The purpose is to provide a method of erection a beam.
【０００６】[0006]
【課題を解決するための手段】請求項１の発明は、ボイ
ラ炉壁に形成した足場用梁挿入口部の前面に、足場用梁
を挟持してボイラ炉内へ送り込む上下対の足場用梁送り
ローラをボイラ炉壁に対し前後方向に複数組配設すると
共に、該ボイラ炉壁の前記足場用梁挿入口部より上方に
設けた設置口からボイラ炉内へ挿入し得且つ先端にボイ
ラ炉内の足場用梁と係合可能な係合具が取付けられたワ
イヤを備えたワイヤ繰り出し用ドラムを設けたことを特
徴とする足場用梁挿入装置、にかかるものである。According to a first aspect of the present invention, a pair of scaffolding beams for scaffolding a scaffolding beam sandwiched in front of a scaffolding beam insertion opening formed in a boiler furnace wall and fed into the boiler furnace. A plurality of sets of feed rollers are arranged in the front-rear direction with respect to the boiler furnace wall, and the boiler furnace wall can be inserted into the boiler furnace from an installation port provided above the scaffolding beam insertion port portion of the boiler furnace wall and at the tip of the boiler furnace. A scaffolding beam insertion device, comprising: a wire feeding drum provided with a wire to which an engaging tool capable of engaging with a scaffolding beam inside is attached.
【０００７】又、請求項２の発明は、足場用梁を、請求
項１に記載の足場用梁挿入装置の足場用梁送りローラに
挟持させてボイラ炉壁の足場用梁挿入口からボイラ炉内
に挿入し、前記足場用梁挿入装置のドラムから繰り出し
たワイヤをボイラ炉の設置口からボイラ炉内に挿入して
前記足場用梁の上面に垂下せしめ、ワイヤに設けられた
係合具と足場用梁のボイラ炉内の挿入部とを連結し、足
場用梁の先端が垂れ下がらないように前記ワイヤを繰り
出しつつ前記足場用梁挿入装置の足場用梁送りローラに
より足場用梁をボイラ炉内に挿入してその先端部を前記
水管ノーズ部の上側部に載置して掛け渡すことを特徴と
する足場用梁架設方法、にかかるものである。In the invention of claim 2, the scaffolding beam is clamped by the scaffolding beam feed roller of the scaffolding beam inserting device according to claim 1, and the scaffolding beam is inserted from the scaffolding beam insertion opening of the boiler furnace wall. Inserted inside, the wire fed from the drum of the scaffolding beam insertion device is inserted into the boiler furnace from the installation port of the boiler furnace and hung down on the upper surface of the scaffolding beam, and an engaging tool provided on the wire. The scaffolding beam is connected to the insertion part of the scaffolding beam inside the boiler furnace, and the scaffolding beam is fed by the scaffolding beam feed roller of the scaffolding beam inserting device while feeding out the wire so that the tip of the scaffolding beam does not hang down. The present invention relates to a scaffolding beam erection method, which is characterized in that the tip end portion is inserted into the inside of the water pipe nose portion and placed on the upper side portion of the water pipe nose portion.
【０００８】[0008]
【作用】請求項１の発明によれば、ボイラ操業停止後に
作業員が作業を行うことができる温度までボイラ炉内温
度が下がっていなくても、ボイラ炉外から足場用梁を挿
入し水管ノーズ部の上側部に掛け渡すという足場組立て
作業の一部を行うことができるので、ボイラ操業停止時
間の短縮化、及び点検用足場の高効率の組立てを図り得
る。According to the invention of claim 1, even if the temperature inside the boiler furnace is not lowered to a temperature at which the worker can work after the boiler operation is stopped, the scaffolding beam is inserted from outside the boiler furnace and the water pipe nose is inserted. Since a part of the scaffolding assembling work that is carried over to the upper side of the section can be performed, it is possible to shorten the boiler operation stop time and to assemble the scaffolding for inspection with high efficiency.
【０００９】請求項２の発明によれば、足場用梁を水平
状態を維持しつつボイラ炉内に連続的に挿入できて、確
実に水管ノーズ部の上側部に足場用梁を掛け渡すことが
できる。According to the second aspect of the present invention, the scaffolding beam can be continuously inserted into the boiler furnace while maintaining the horizontal state, and the scaffolding beam can be reliably bridged over the upper portion of the water pipe nose portion. it can.
【００１０】[0010]
【実施例】以下、本発明の実施例を図１〜図９を参照し
つつ説明する。尚、図１０と同符号のものは同一物を示
す。Embodiments of the present invention will be described below with reference to FIGS. The same reference numerals as those in FIG. 10 indicate the same items.
【００１１】図中１１は、炉壁管４ａ及び隣接炉壁管４
ａを相互に連結するフィン４ｂからなるボイラ炉１の炉
壁４及びその外側面に配設せる断熱材１２を貫通してボ
イラ炉１外側と内側とを連通するように形成された、足
場用梁１３を挿入する足場用梁挿入口であって、ボイラ
操業時は蓋により閉塞状態になっているものであり、１
４は滑車１６付きの保持枠１５を挿入設置するため前記
挿入口１１の真上に設けた設置口であってボイラ操業時
は蓋により閉塞状態になっているものである。Reference numeral 11 in the drawing denotes a furnace wall tube 4a and an adjacent furnace wall tube 4
For scaffolding formed so as to communicate the outside and inside of the boiler furnace 1 by penetrating the furnace wall 4 of the boiler furnace 1 including the fins 4b interconnecting a and the heat insulating material 12 arranged on the outer surface thereof. A scaffolding beam insertion opening for inserting the beam 13, which is closed by a lid when the boiler is in operation.
Reference numeral 4 denotes an installation port provided directly above the insertion port 11 for inserting and installing the holding frame 15 with the pulley 16, which is closed by a lid during operation of the boiler.
【００１２】１７は建屋壁１０とボイラ炉１の炉壁４と
の間に水平に配設してあるボイラ鉄骨１８に固定された
足場用梁置き台であり、該置き台１７には複数本（図で
は２本）の足場用梁送りローラ１９が足場用梁１３送り
出し方向に対し直角に且つ水平状態で平行にしかも回転
自在に取付けられており、足場用梁置き台１７と炉壁４
外側の断熱材１２との間には後述の足場用梁挿入装置２
０が図１に示す如く足場用梁置き台１７と連なって配設
されている。Reference numeral 17 denotes a scaffolding beam stand fixed to a boiler steel frame 18 which is horizontally arranged between the building wall 10 and the furnace wall 4 of the boiler furnace 1. Scaffolding beam feed rollers 19 (two in the figure) are mounted rotatably at right angles to the feeding direction of the scaffolding beam 13 and in a horizontal state in parallel and rotatably.
A scaffolding beam insertion device 2 to be described later is provided between the heat insulating material 12 on the outside.
0 is connected to the scaffolding beam stand 17 as shown in FIG.
【００１３】前記足場用梁挿入装置２０は次のような構
造を有する。The scaffolding beam inserting device 20 has the following structure.
【００１４】即ち、炉壁４の前面に設置せるボイラ鉄骨
２１に固定され、且つ足場用梁置き台１７から送り出さ
れた足場用梁１３を受け取りボイラ炉１内へ送り出すよ
うに複数本（図では２本）の足場用梁送りローラ２２を
回転自在に取付けた下側足場用梁挿入枠体２３と、該下
側足場用梁挿入枠体２３の足場用梁送りローラ２２と上
下対をなし足場用梁１３を挟持した状態でボイラ炉１内
へ送り出す足場用梁送りローラ２４を複数本（図では２
本）設けた上側足場用梁挿入枠体２５とが上下対に複数
（図では２台）並設されている。That is, a plurality of scaffolding beams 13 fixed to a boiler steel frame 21 installed on the front surface of the furnace wall 4 and sent out from the scaffolding beam holder 17 are sent into the boiler furnace 1 (in the figure, (2) scaffolding beam feed rollers 22 are rotatably attached to the lower scaffolding beam insertion frame 23, and the scaffolding beam feed rollers 22 of the lower scaffolding beam insertion frame 23 are not vertically paired with each other. A plurality of scaffolding beam feed rollers 24 (2 in the figure) that feeds the scaffolding beam 13 into the boiler furnace 1 in a sandwiched state.
A plurality (two in the figure) of the provided upper beam scaffolding beam insertion frames 25 arranged side by side are arranged side by side.
【００１５】尚、該上側足場用梁挿入枠体２５と下側足
場用梁挿入枠体２３とは図４破線で示す如く一体形状に
して中央部長手方向に足場用梁１３が通り抜ける通路を
貫通した構造としてもよいし、又図１に示す上側足場用
梁挿入枠体２５を炉壁４前面に設置せるボイラ鉄骨に固
定してもよいし、更に上側足場用梁挿入枠体２５を下側
足場用梁挿入枠体２３の上面に脚部材を介し固定しても
よい。The upper scaffolding beam inserting frame 25 and the lower scaffolding beam inserting frame 23 are integrally formed as shown by a broken line in FIG. 4 and penetrate the passage through which the scaffolding beam 13 passes in the central longitudinal direction. 1 or may be fixed to a boiler steel frame installed on the front surface of the furnace wall 4, and further, the upper scaffolding beam insertion frame 25 may be fixed to the lower side. You may fix to the upper surface of the scaffolding beam insertion frame 23 via a leg member.
【００１６】前記上側足場用梁挿入枠体２５の上側部分
にはワイヤ２７を巻取り巻戻すドラム２６が回転自在に
保持されており、該ドラム２６の回転軸と前記上側足場
用梁挿入枠体２５の足場用梁送りローラ２４の回転軸と
は、図３に示す如く駆動機であるエアモータ２８，２９
の出力軸にクラッチ３０，３１を介し夫々連結されてい
て、足場用梁送りローラ２４による足場用梁１３のボイ
ラ炉１内への挿入速度に合わせてドラム２６からワイヤ
２７をボイラ炉１内に繰り出し得るようになっている。A drum 26 for winding and rewinding the wire 27 is rotatably held on the upper portion of the upper scaffolding beam inserting frame body 25. The rotating shaft of the drum 26 and the upper scaffolding beam inserting frame body are rotatably held. The rotation shafts of the scaffolding beam feed rollers 24 of 25 are air motors 28, 29 which are drive machines as shown in FIG.
Output shafts of the scaffolds are connected via clutches 30 and 31, respectively, and a wire 27 is introduced from the drum 26 into the boiler furnace 1 in accordance with the insertion speed of the scaffolding beam feed roller 24 into the boiler furnace 1. You can get out.
【００１７】前記ドラム２６の直上部において滑車３２
が、ボイラ炉１の外側に設置せるボイラ鉄骨３３に回転
自在に支承されており、ドラム２６から繰り出されたワ
イヤ２７の一端は滑車３２，１６に順次掛け回されてボ
イラ炉１内の足場用梁１３の挿入部上面に垂下されるよ
うになっている。A pulley 32 is provided just above the drum 26.
Is rotatably supported by a boiler steel frame 33 installed outside the boiler furnace 1, and one end of the wire 27 unwound from the drum 26 is sequentially wound around the pulleys 32 and 16 to be used as a scaffold in the boiler furnace 1. It is adapted to hang down on the upper surface of the insertion portion of the beam 13.
【００１８】前記保持枠１５の幅寸法ｘ及び保持枠１５
の天井部と滑車１６上端との間隔寸法ｙは後述の円板３
６が通過自在な寸法にする（図４参照）。Width x of the holding frame 15 and the holding frame 15
The space dimension y between the ceiling of the and the upper end of the pulley 16 is the disk 3 described later.
6 has a size that allows free passage (see FIG. 4).
【００１９】前記ボイラ炉１内に挿入し吊り下ろすワイ
ヤ２７の垂下端には、図４及び図５に示す如く係合具３
４が取付けられており、該係合具３４は、ワイヤ２７の
垂下端に設けられた連結具３５と、上面に板状ガイド部
材３７を立設せる円板３６とを備えていて、連結具３５
と板状ガイド部材３７とを回動自在にピン枢着したもの
であり、図４に示す如く重りとしてワイヤ２７に作用し
該ワイヤ２７を直線状に垂下せしめ得るものである。As shown in FIGS. 4 and 5, the engaging member 3 is provided at the hanging lower end of the wire 27 which is inserted into and hung from the boiler furnace 1.
4 is attached to the engaging member 34, and the engaging member 34 includes a connecting member 35 provided at the hanging lower end of the wire 27, and a disc 36 on which a plate-shaped guide member 37 is erected on the upper surface. 35
A plate-like guide member 37 and a plate-shaped guide member 37 are rotatably supported by a pin, and as shown in FIG. 4, they act on the wire 27 as a weight so that the wire 27 can be hung linearly.
【００２０】前記足場用梁１３の一端側（ボイラ炉１内
挿入端側）上面部には、図４〜図６に示す如く、足場用
梁１３のボイラ炉１への挿入端側から足場用梁挿入口１
１側に向けて板状ガイド部材３７の挿入用切欠き３９を
有し且つ円板３６を足場用梁１３のボイラ炉１への挿入
端側から足場用梁挿入口１１側に切欠き３９に沿い移動
することにより円板３６を受入れ係合するようになって
いる係止部材３８が取付けてあり、該係止部材３８に円
板３６を係合することにより前記ワイヤ２７のボイラ炉
１内垂下端と足場用梁１３のボイラ炉１への挿入部とが
連結されるようになっている。As shown in FIGS. 4 to 6, the upper surface of one end of the scaffolding beam 13 (the insertion end side in the boiler furnace 1) is used for scaffolding from the insertion end side of the scaffolding beam 13 into the boiler furnace 1. Beam insertion slot 1
1 has a notch 39 for insertion of the plate-shaped guide member 37, and the disk 36 is provided as a notch 39 from the insertion end side of the scaffolding beam 13 into the boiler furnace 1 to the scaffolding beam insertion port 11 side. A locking member 38 adapted to receive and engage the disk 36 by moving along is attached, and by engaging the disk 36 with the locking member 38, the wire 27 in the boiler furnace 1 is attached. The hanging end and the insertion part of the scaffolding beam 13 into the boiler furnace 1 are connected.
【００２１】又、前記足場用梁１３を水管ノーズ部６の
上側傾斜部に掛け渡した際に生ずる撓みに対処するため
に、図７及び図８に示す如き受け部材４１を用いる。Further, in order to cope with the bending that occurs when the scaffolding beam 13 is bridged over the upper inclined portion of the water pipe nose portion 6, a receiving member 41 as shown in FIGS. 7 and 8 is used.
【００２２】前記受け部材４１は、炉壁４のフィン４ｂ
に設けられボイラ操業時は閉塞している挿入口４０から
ボイラ炉１内に挿入した際の挿入部上縁に、足場用梁１
３を受入れ載置するために厚み方向に貫通した切込み部
４２を有しており、又、受け部材４１のボイラ炉１の外
側部分には断面Ｈ型の固定部材４３が溶接等により一体
に取付けられており、炉壁４の炉壁管４ａの外側に取付
けられたバックステー４４にボルトで前記固定部材４３
を取付けることにより受け部材４１が炉壁４に固定され
るようになっている。The receiving member 41 is a fin 4b of the furnace wall 4.
The scaffolding beam 1 is attached to the upper edge of the insertion part when the insertion part 40 is inserted into the boiler furnace 1 through the insertion port 40
3 has a notch 42 penetrating in the thickness direction for receiving and mounting it, and a fixing member 43 having an H-shaped cross section is integrally attached to the outside of the boiler furnace 1 of the receiving member 41 by welding or the like. The fixing member 43 is bolted to a back stay 44 attached to the outside of the furnace wall tube 4a of the furnace wall 4.
The receiving member 41 is fixed to the furnace wall 4 by attaching.
【００２３】以下、ボイラ炉内点検用足場の組立てにつ
いて説明する。The assembly of the scaffold for inspecting the inside of the boiler furnace will be described below.
【００２４】先ずボイラの操業を停止し、足場用梁１３
をボイラ炉１内に挿入するための足場用梁挿入口１１を
開口すると共に、保持枠１５を嵌着するための設置口１
４を開口し、更に受け部材４１をボイラ炉１内に挿入す
るための挿入口４０を開口する。First, the operation of the boiler is stopped and the scaffolding beam 13 is used.
The scaffolding beam insertion opening 11 for inserting the inside of the boiler furnace 1 and the installation opening 1 for fitting the holding frame 15
4 is opened, and an insertion port 40 for inserting the receiving member 41 into the boiler furnace 1 is also opened.
【００２５】開口した挿入口４０から受け部材４１を切
込み部４２を上側にしてボイラ炉１内に挿入し、受け部
材４１と一体の固定部材４３をバックステー４４を介し
炉壁４に図７及び図８に示す如く固定する。The receiving member 41 is inserted into the boiler furnace 1 from the opened insertion port 40 with the notch 42 on the upper side, and the fixing member 43 integrated with the receiving member 41 is provided on the furnace wall 4 via the back stay 44 as shown in FIG. Fix as shown in FIG.
【００２６】次いで先端下側を切り欠き水管ノーズ部６
の上側傾斜部と合致する傾斜部を形成してある足場用梁
１３を、切り欠いてある先端をボイラ炉１の挿入先端と
なるようにして足場用梁置き台１７から適宜足場用梁挿
入装置２０に押込み上下対の足場用梁送りローラ２４，
２２で挟んだ状態にし、クラッチ３１を入にしてエアモ
ータ２８により足場用梁送りローラ２４を回転駆動し
て、図１、図２及び図４に示す如く先端をボイラ炉１内
に適宜突出した状態になるまで足場用梁１３を挿入し、
足場用梁送りローラ２４の回転を停止する。Next, a water pipe nose portion 6 is formed by cutting out the lower end of the tip.
The scaffolding beam 13 having an inclined portion that matches the upper slanted portion of the scaffolding beam is inserted from the scaffolding beam holder 17 so that the notched tip becomes the insertion tip of the boiler furnace 1. 20 pairs of scaffolding beam feed rollers 24 pushed into 20
22, the clutch 31 is turned on, the scaffolding beam feed roller 24 is rotationally driven by the air motor 28, and the tip is appropriately projected into the boiler furnace 1 as shown in FIGS. 1, 2 and 4. Insert the scaffolding beam 13 until
The rotation of the scaffolding beam feed roller 24 is stopped.
【００２７】又、設置口１４に保持枠１５を、滑車１６
がボイラ炉１内に位置するように挿入設置し、クラッチ
３０を入にしてエアモータ２９によりドラム２６を回転
駆動させることによりワイヤ２７を繰り出し、該ワイヤ
２７を滑車３２、１６に順次掛け回して設置口１４から
ボイラ炉１内に挿入し、エアモータ２９によりドラム２
６を更に回転駆動してワイヤ２７をボイラ炉１内に垂下
し、図１及び図４に示す如く足場用梁１３のボイラ炉１
内挿入端上面にまで吊り下ろした状態にし、ドラム２６
の回転を停止する。A holding frame 15 is attached to the installation port 14 and a pulley 16 is provided.
Is inserted and installed so as to be located in the boiler furnace 1, the clutch 30 is put in, and the drum 26 is rotationally driven by the air motor 29 to feed out the wire 27, and the wire 27 is sequentially wound around the pulleys 32 and 16 to be installed. It is inserted into the boiler furnace 1 from the mouth 14 and the drum 2 is driven by the air motor 29.
6 is further rotationally driven to hang the wire 27 into the boiler furnace 1, and the boiler furnace 1 of the scaffolding beam 13 as shown in FIGS.
The drum 26 is hung down to the upper surface of the inner insertion end.
Stop rotating.
【００２８】更に、ワイヤ２７先端に設けた係合具３４
の円板３６を、ボイラ炉１の足場用梁挿入口１１側に
（図５及び図６の矢印Ａ方向に）引き込み具等を用いて
引き込み、図５及び図６の仮想線から実線で示す如く円
板３６に立設した板状ガイド部材３７を切欠き３９に沿
わせて移動し、円板３６を係止部材３８に挿入係合して
ワイヤ２７を足場用梁１３のボイラ炉１の挿入端に連結
する。Further, an engaging tool 34 provided at the tip of the wire 27
Of the disk 36 of the boiler furnace 1 on the scaffolding beam insertion port 11 side (in the direction of arrow A in FIGS. 5 and 6) using a drawing tool or the like, and is shown by a solid line from imaginary lines in FIGS. 5 and 6. As described above, the plate-shaped guide member 37 erected on the circular plate 36 is moved along the notch 39, the circular plate 36 is inserted and engaged with the locking member 38, and the wire 27 is attached to the scaffolding beam 13 of the boiler furnace 1. Connect to the insertion end.
【００２９】尚、ワイヤ２７先端に設けた係合具３４の
円板３６を足場用梁１３の上面すれすれまで吊り下ろし
た状態にし、該足場用梁１３をボイラ炉１内へ徐々に挿
入移動することにより、円板３６を係止部材３８に挿入
係合してワイヤ２７を足場用梁１３に連結してもよい。Incidentally, the disk 36 of the engaging tool 34 provided at the tip of the wire 27 is hung up to just near the upper surface of the scaffolding beam 13, and the scaffolding beam 13 is gradually inserted into the boiler furnace 1 and moved. By doing so, the disk 36 may be inserted and engaged with the locking member 38 to connect the wire 27 to the scaffolding beam 13.
【００３０】しかる後に、クラッチ３０，３１を夫々入
にし、エアモータ２８，２９により足場用梁送りローラ
２４及びドラム２６を夫々回転駆動し、足場用梁１３の
ボイラ炉１内への挿入速度に応じてドラム２６のワイヤ
２７を繰り出し、前記足場用梁１３の先端傾斜部をワイ
ヤ２７で保持して水平状態を維持しつつボイラ炉１内に
挿入し、図７及び図８に示す如く受け部材４１の切込み
部４２を通し撓みを防止しつつ水管ノーズ部６の上側傾
斜部に掛け渡す。After that, the clutches 30 and 31 are respectively engaged, and the scaffolding beam feed roller 24 and the drum 26 are rotationally driven by the air motors 28 and 29, respectively, so that the scaffolding beam 13 is inserted into the boiler furnace 1 in accordance with the insertion speed. The wire 27 of the drum 26 is fed out, the tip end inclined portion of the scaffolding beam 13 is held by the wire 27 and is inserted into the boiler furnace 1 while maintaining the horizontal state, and as shown in FIGS. The water pipe nose portion 6 is hung over the upper inclined portion while preventing bending by passing through the notch portion 42.
【００３１】足場用梁１３がボイラ炉１外から水管ノー
ズ部６の上側傾斜部まで達する長さである場合には、図
７に示す如く１本でよいが、逆に足場用梁１３がボイラ
炉１外側から水管ノーズ部６の上側傾斜部まで達する長
さを有しない場合には、最初の足場用梁１３を足場用梁
挿入装置２０により適宜挿入した状態にして、図１の破
線で示す如く足場用梁置き台１７に載置してある２番目
の足場用梁１３の先端とボイラ炉１内に挿入せる最初の
足場用梁１３のボイラ炉１外側端とをジョイント４５結
合してボイラ炉１内に挿入し、未だ水管ノーズ部６の上
側傾斜部に達しない場合には前記と同様に２番目の足場
用梁１３の後に３番目の足場用梁１３を継足してボイラ
炉１内に挿入し水管ノーズ部６の上側傾斜部に図１仮想
線で示す如く掛け渡す。When the scaffolding beam 13 has a length reaching from the outside of the boiler furnace 1 to the upper inclined portion of the water pipe nose portion 6, one scaffolding beam 13 is sufficient, but conversely, the scaffolding beam 13 is used for the boiler. In the case where the length from the outside of the furnace 1 to the upper inclined portion of the water pipe nose portion 6 is not provided, the first scaffolding beam 13 is appropriately inserted by the scaffolding beam inserting device 20 and is shown by a broken line in FIG. As described above, the tip of the second scaffolding beam 13 placed on the scaffolding beam stand 17 and the outer end of the boiler furnace 1 of the first scaffolding beam 13 to be inserted into the boiler furnace 1 are jointed with each other by a joint 45 to join the boiler. When it is inserted into the furnace 1 and has not yet reached the upper inclined portion of the water pipe nose portion 6, the second scaffolding beam 13 is added to the third scaffolding beam 13 in the same manner as described above to add the third scaffolding beam 13 to the inside of the boiler furnace 1. And hang it on the upper inclined part of the water pipe nose part 6 as shown by the phantom line in FIG. It is.
【００３２】尚、使用する最初の足場用梁１３の先端下
側は傾斜しているけれども後続の足場用梁１３の先端下
側は傾斜していない。Although the lower end of the tip of the first scaffolding beam 13 to be used is inclined, the lower end of the tip of the subsequent scaffolding beam 13 is not inclined.
【００３３】前記の如くボイラ炉１内に挿入した足場用
梁１３を水管ノーズ部６の上側傾斜部に掛け渡してか
ら、エアモータ２８，２９の駆動を停止してブレーキを
掛け、足場用梁１３のボイラ炉１外側端部を足場用梁送
りローラ２２，２４で挟持した状態にして足場用梁１３
が戻らないようにロックする。The scaffolding beam 13 inserted into the boiler furnace 1 as described above is laid over the upper inclined portion of the water pipe nose portion 6, and then the driving of the air motors 28 and 29 is stopped to brake the scaffolding beam 13. Scaffolding beam 13 with the outer end of the boiler furnace 1 being sandwiched between scaffolding beam feed rollers 22 and 24
Lock it to prevent it from returning.
【００３４】同様にして足場用梁１３を図２及び図７に
示す如く複数本（図では２本）平行に水管ノーズ部６の
上側傾斜部に掛け渡しロックする。Similarly, as shown in FIGS. 2 and 7, a plurality of scaffolding beams 13 (two in the figure) are suspended and locked on the upper inclined portion of the water pipe nose portion 6 in parallel.
【００３５】前記作業は、ボイラ炉１の外側から行うの
で、ボイラ炉１内の温度が作業員が入れない程の高温で
あっても行うことができてボイラ操業停止時間を短縮す
ることができる。Since the above-mentioned work is carried out from the outside of the boiler furnace 1, it can be carried out even when the temperature in the boiler furnace 1 is so high that no worker can enter it, and the boiler operation stop time can be shortened. ..
【００３６】足場用梁１３の掛け渡しが終了したら、作
業員がボイラ炉１外から１〜２枚の足場板４７をマンホ
ール４６を通しボイラ炉１内に挿入して図７仮想線に示
す如く足場用梁１３，１３間に掛け渡す。After the scaffolding beam 13 is crossed over, the worker inserts one or two scaffolding plates 47 from outside the boiler furnace 1 into the boiler furnace 1 through the manhole 46, as shown by the phantom line in FIG. It is bridged between the scaffolding beams 13, 13.
【００３７】作業員が入ることができる温度までボイラ
炉１内温度が下降したら、作業員がボイラ炉１内に入り
既に設置してある１〜２枚の足場板４７に乗り、更にマ
ンホール４６から挿入された足場板４７を足場用梁１
３，１３間に掛け渡して上側足場ベース７を組立て、該
上側足場ベース７を基にして足場枠５’を順次炉壁４の
内壁に沿い組上げて行くのと並行して、ホッパー２に下
側足場ベース３を組立てて該下側足場ベース３を基にし
て足場枠５を順次炉壁４の内壁に沿い組上げて図９に示
す如くボイラ炉内点検用足場を組立てる。When the temperature inside the boiler furnace 1 is lowered to a temperature at which the worker can enter, the worker enters the boiler furnace 1 and rides one or two scaffolding plates 47 already installed, and further from the manhole 46. The scaffolding board 47 with the inserted scaffolding plate 47
Assemble the upper scaffolding base 7 by straddling it between Nos. 3 and 13, and build up the scaffolding frame 5'on the basis of the upper scaffolding base 7 in sequence along the inner wall of the furnace wall 4, and at the same time, place it on the hopper 2. The side scaffolding base 3 is assembled, the scaffolding frame 5 is sequentially assembled along the inner wall of the furnace wall 4 based on the lower scaffolding base 3, and the scaffolding for inspecting the boiler furnace is assembled as shown in FIG.
【００３８】ボイラ炉１内に挿入し水管ノーズ部６の上
側傾斜部に掛け渡した足場用梁１３は、先端部は水管ノ
ーズ部６上側傾斜部に、中途部は受け部材４１に、後端
（ボイラ炉１外側端）は足場用梁挿入装置２０により夫
々支持されている状態にあるので、しっかりと撓みなく
固定された状態になっており、従って足場板４７や足場
枠５’を足場用梁１３に安定した状態で確実に載置固定
することができる。The scaffolding beam 13 inserted into the boiler furnace 1 and hung over the upper inclined portion of the water pipe nose portion 6 has a tip portion on the upper inclined portion of the water pipe nose portion 6, a middle portion on the receiving member 41, and a rear end. Since the (outer end of the boiler furnace 1) is in a state of being supported by the scaffolding beam inserting device 20, the scaffolding plate 47 and the scaffolding frame 5'are firmly fixed without bending. The beam 13 can be reliably placed and fixed in a stable state.
【００３９】ボイラ炉内点検用足場の組立て時にワイヤ
２７と足場用梁１３との連結を解き足場組立て作業に支
障を来さないようにする。At the time of assembling the scaffold for inspection inside the boiler furnace, the connection between the wire 27 and the scaffold beam 13 is released so as not to hinder the scaffold assembling work.
【００４０】前記の如く組立てたボイラ炉内点検用足場
により、過熱器や再熱器８の点検、補修を行い、又炉壁
４内壁に付着せるクリンカを掻き落としたりしてボイラ
炉内点検作業を行う。Using the scaffolding for inspecting the inside of the boiler furnace assembled as described above, the superheater and the reheater 8 are inspected and repaired, and the clinker attached to the inner wall of the furnace wall 4 is scraped off to inspect the inside of the boiler furnace. I do.
【００４１】ボイラ炉１の点検、補修する範囲によって
は上側足場ベース７を基にしたボイラ炉内点検用足場を
組立てるだけでもよく、この場合は図１０に示す如くボ
イラ炉１の内面に沿い順次下から上までボイラ炉内点検
用足場を組立てる必要がないので、足場の組立てを迅速
に行うことができる。Depending on the range of inspection and repair of the boiler furnace 1, it is sufficient to assemble scaffolds for inspecting the boiler furnace based on the upper scaffold base 7. In this case, as shown in FIG. Since it is not necessary to assemble scaffolds for inspection inside the boiler furnace from bottom to top, scaffolds can be assembled quickly.
【００４２】尚本発明は、図示し説明した実施例にのみ
限定されることなく、例えば下側足場用梁挿入枠体２３
及び上側足場用梁挿入枠体２５を用いることなく直接ボ
イラ炉１外側に配設せるボイラ鉄骨等に回転自在に足場
用梁送りローラ２２及び足場用梁送りローラ２４を上下
対をなす如く複数組支持せしめること、ボイラ炉内に設
置せる水管ノーズ部６の上側傾斜部と合致する傾斜部を
先端下側に有しない足場用梁のみを用いて足場を組立て
ること、最初にボイラ炉１に挿入する足場用梁１３の中
央部等の挿入端部以外の箇所とワイヤ２７とを連結する
こと、ゴムの如き弾力性を有する材料で製作した足場用
梁送りローラ２２，２４を用いること等は任意であり、
その他、本発明の要旨を逸脱しない限り種々変更を加え
得ることは勿論である。The present invention is not limited to the illustrated and described embodiments, but is, for example, the lower scaffolding beam insertion frame 23.
Also, a plurality of scaffolding beam feed rollers 22 and scaffolding beam feed rollers 24 are rotatably mounted on the boiler steel frame or the like which can be disposed directly outside the boiler furnace 1 without using the upper scaffolding beam insertion frame 25 so as to form a pair of upper and lower sides. Supporting, assembling the scaffold using only scaffolding beams that do not have an inclined part that matches the upper inclined part of the water pipe nose part 6 installed in the boiler furnace, and insert it into the boiler furnace 1 first. It is optional to connect the wire 27 to a portion other than the insertion end portion such as the central portion of the scaffolding beam 13 and to use the scaffolding beam feed rollers 22 and 24 made of a material having elasticity such as rubber. Yes,
Of course, various changes can be made without departing from the gist of the present invention.
【００４３】[0043]
【発明の効果】以上述べたように本発明の足場用梁挿入
装置によれば、ボイラ炉内の温度が作業員が入って作業
し得ない程の高温であっても、足場を組立てるための足
場用梁をボイラ炉外から安全且つ確実にボイラ炉内に据
え付けることができ、従ってボイラ操業停止時間の短縮
化を図り得る、という優れた効果を奏し得る。As described above, according to the scaffolding beam inserting apparatus of the present invention, scaffolds can be assembled even if the temperature inside the boiler furnace is too high for workers to work in. The scaffolding beam can be installed safely and reliably inside the boiler furnace from outside the boiler furnace, and therefore, the excellent effect that the boiler operation stop time can be shortened can be achieved.
【００４４】又、本発明の足場用梁挿入装置による足場
用梁架設方法によれば、ボイラ炉内温度が作業員が入っ
て作業し得る温度に下がるまでに足場用梁を水管ノーズ
部に掛け渡しておくことができるので、点検用足場の組
立て時間を大幅に短縮できてボイラ操業停止時間の短縮
化を図り得られると共に、効率よく点検用足場を組立て
ることができる、等種々の優れた効果を奏し得る。According to the scaffolding beam erection method using the scaffolding beam inserting device of the present invention, the scaffolding beam is hung on the water pipe nose portion until the temperature inside the boiler furnace falls to a temperature at which a worker can enter and work. Since it can be handed over, the assembly time of the scaffold for inspection can be significantly shortened, the boiler downtime can be shortened, and the scaffold for inspection can be assembled efficiently. Can be played.
【図１】本発明の足場用梁挿入装置及び該装置による足
場用梁架設方法を示す縦断側面図である。FIG. 1 is a vertical cross-sectional side view showing a scaffolding beam insertion apparatus of the present invention and a scaffolding beam installation method using the apparatus.
【図２】図１のＩＩ方向矢視図である。FIG. 2 is a view on arrow II in FIG.
【図３】本発明の足場用梁挿入装置における駆動機構を
示す図である。FIG. 3 is a view showing a drive mechanism in the scaffolding beam insertion device of the present invention.
【図４】本発明の足場用梁架設方法におけるワイヤと足
場用梁との位置関係を示す斜視図である。FIG. 4 is a perspective view showing a positional relationship between a wire and a scaffolding beam in the scaffolding beam erection method of the present invention.
【図５】本発明の足場用梁架設方法におけるワイヤと足
場用梁との係合状態を示す切断側面図である。FIG. 5 is a cut side view showing an engaged state of the wire and the scaffolding beam in the scaffolding beam erection method of the present invention.
【図６】図５のＶＩ−ＶＩ方向矢視図である。6 is a VI-VI direction arrow view of FIG.
【図７】本発明の足場用梁架設方法における足場用梁を
掛け渡した状態を示す斜視図である。FIG. 7 is a perspective view showing a state in which the scaffolding beams are bridged in the scaffolding beam erection method of the present invention.
【図８】図７のＶＩＩＩ方向矢視図である。8 is a view on arrow VIII in FIG.
【図９】本発明の足場用梁架設方法により組立てた点検
用足場を示す側面図である。FIG. 9 is a side view showing an inspection scaffold assembled by the scaffold beam erection method of the present invention.
【図１０】従来のボイラ炉における点検用足場を示す側
面図である。FIG. 10 is a side view showing a scaffold for inspection in a conventional boiler furnace.
１ ボイラ炉 ３ 下側足場ベース ４ 炉壁 ５，５’ 足場枠 ６ 水管ノーズ部 ７ 上側足場ベース １１ 足場用梁挿入口 １３ 足場用梁 １４ 設置口 １５ 保持枠 １６ 滑車 １７ 足場用梁置き台 １９ 足場用梁送りローラ ２０ 足場用梁挿入装置 ２２ 足場用梁送りローラ ２３ 下側足場用梁挿入枠体 ２４ 足場用梁送りローラ ２５ 上側足場用梁挿入枠体 ２６ ドラム ２７ ワイヤ ２８，２９ エアモータ（駆動機） ３０，３１ クラッチ ３２ 滑車 ３４ 係合具 ３５ 連結具 ３６ 円板 ３７ 板状ガイド部材 ３８ 係止部材 ３９ 切欠き ４１ 受け部材 ４２ 切込み部 ４３ 固定部材 ４５ ジョイント ４７ 足場板 1 Boiler Furnace 3 Lower Scaffolding Base 4 Furnace Wall 5,5 'Scaffolding Frame 6 Water Tube Nose 7 Upper Scaffolding Base 11 Scaffolding Beam Insertion Port 13 Scaffolding Beam 14 Installation Port 15 Holding Frame 16 Pulley 17 Scaffolding Beam Stand 19 Scaffolding beam feed roller 20 Scaffolding beam inserting device 22 Scaffolding beam feeding roller 23 Lower scaffolding beam inserting frame 24 Scaffolding beam feeding roller 25 Upper side scaffolding beam inserting frame 26 Drum 27 Wire 28, 29 Air motor (drive) Machine) 30, 31 Clutch 32 Pulley 34 Engagement tool 35 Coupling tool 36 Disc 37 Plate-shaped guide member 38 Locking member 39 Notch 41 Receiving member 42 Notch 43 Fixing member 45 Joint 47 Scaffolding plate
Claims (1)
の前面に、足場用梁を挟持してボイラ炉内へ送り込む上
下対の足場用梁送りローラをボイラ炉壁に対し前後方向
に複数組配設すると共に、該ボイラ炉壁の前記足場用梁
挿入口部より上方に設けた設置口からボイラ炉内へ挿入
し得且つ先端にボイラ炉内の足場用梁と係合可能な係合
具が取付けられたワイヤを備えたワイヤ繰り出し用ドラ
ムを設けたことを特徴とする足場用梁挿入装置。 【請求項２】 足場用梁を、請求項１に記載の足場用梁
挿入装置の足場用梁送りローラに挟持させてボイラ炉壁
の足場用梁挿入口からボイラ炉内に挿入し、前記足場用
梁挿入装置のドラムから繰り出したワイヤをボイラ炉の
設置口からボイラ炉内に挿入して前記足場用梁の上面に
垂下せしめ、ワイヤに設けられた係合具と足場用梁のボ
イラ炉内の挿入部とを連結し、足場用梁の先端が垂れ下
がらないように前記ワイヤを繰り出しつつ前記足場用梁
挿入装置の足場用梁送りローラにより足場用梁をボイラ
炉内に挿入してその先端部を前記水管ノーズ部の上側部
に載置して掛け渡すことを特徴とする足場用梁架設方
法。Claims: 1. A pair of scaffolding beam feed rollers for sandwiching a scaffolding beam and feeding it into the boiler furnace in front of the scaffolding beam insertion opening formed in the boiler furnace wall. A plurality of pairs of scaffolding beams can be inserted into the boiler furnace through an installation port provided above the scaffolding beam insertion port portion of the boiler furnace wall while being provided in a plurality of sets in the front-back direction with respect to the wall and at the tip. A scaffolding beam insertion device comprising a wire feeding drum having a wire to which an engaging tool capable of engaging with the wire is attached. 2. A scaffolding beam is inserted into a boiler furnace through a scaffolding beam feed roller of the scaffolding beam insertion device according to claim 1 and inserted into the boiler furnace through a scaffolding beam insertion opening of the boiler furnace wall. In the boiler furnace of the scaffolding beam and the engaging tool provided on the wire, insert the wire fed out from the drum of the beam insertion device into the boiler furnace from the installation port of the boiler furnace and hang it down on the upper surface of the scaffolding beam. Of the scaffolding beam is inserted into the boiler furnace by the scaffolding beam feed roller of the scaffolding beam insertion device while feeding out the wire so that the tip of the scaffolding beam does not hang down. A scaffolding beam erection method, characterized in that the section is placed on the upper side of the water pipe nose section and hung over.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18190091A JPH055358A (en) | 1991-06-26 | 1991-06-26 | Scaffolding beam inserting device, and installation of scaffolding beam therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18190091A JPH055358A (en) | 1991-06-26 | 1991-06-26 | Scaffolding beam inserting device, and installation of scaffolding beam therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH055358A true JPH055358A (en) | 1993-01-14 |
Family
ID=16108849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18190091A Pending JPH055358A (en) | 1991-06-26 | 1991-06-26 | Scaffolding beam inserting device, and installation of scaffolding beam therewith |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH055358A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5954565A (en) * | 1992-06-03 | 1999-09-21 | Hitachi Ltd. | Rolling mill equipped with on-line roll grinding system and grinding wheel |
| EP2840202A1 (en) * | 2013-08-23 | 2015-02-25 | Hitachi Ltd. | Working scaffold girder structure for a boiler furnace |
-
1991
- 1991-06-26 JP JP18190091A patent/JPH055358A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5954565A (en) * | 1992-06-03 | 1999-09-21 | Hitachi Ltd. | Rolling mill equipped with on-line roll grinding system and grinding wheel |
| US6616511B2 (en) | 1992-06-03 | 2003-09-09 | Hitachi, Ltd. | Rolling mill equipped with on-line roll grinding system and grinding wheel |
| EP2840202A1 (en) * | 2013-08-23 | 2015-02-25 | Hitachi Ltd. | Working scaffold girder structure for a boiler furnace |
| JP2015040451A (en) * | 2013-08-23 | 2015-03-02 | 株式会社日立製作所 | Work platform main beam structure in boiler furnace, work platform main beam feeder and work platform installation method |
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