JPH0990084A - Telescopic cylinder type elevator - Google Patents

Telescopic cylinder type elevator

Info

Publication number
JPH0990084A
JPH0990084A JP7242848A JP24284895A JPH0990084A JP H0990084 A JPH0990084 A JP H0990084A JP 7242848 A JP7242848 A JP 7242848A JP 24284895 A JP24284895 A JP 24284895A JP H0990084 A JPH0990084 A JP H0990084A
Authority
JP
Japan
Prior art keywords
steam generator
support plate
telescopic cylinder
cylinder
tube support
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.)
Granted
Application number
JP7242848A
Other languages
Japanese (ja)
Other versions
JP3085888B2 (en
Inventor
Shigeo Hashimoto
重夫 橋本
Hidekazu Inui
秀和 乾
Ei Tsuzuki
鋭 都築
Hiromasa Kamei
博正 亀井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP07242848A priority Critical patent/JP3085888B2/en
Publication of JPH0990084A publication Critical patent/JPH0990084A/en
Application granted granted Critical
Publication of JP3085888B2 publication Critical patent/JP3085888B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Landscapes

  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an elevator which is capable of inserting from a hand hole into a steam generator of a reactor power plant, elevating between upper tube support plate and lower tube support plate in the specific position of the steam generator, and quickly inspecting the interior by sight and removing the scale on the tube support plate. SOLUTION: This elevator 1 is placed freely expanding between the lowermost elevation and the uppermost elevation of a tube support plate in a steam generator of a reactor power plant. This device 1 has a telescopic cylinder 2 capable of expanding for a plurality of steps and a support stage 4 to which the lower end of the telescopic cylinder 2 is fixed and a plurality of running rollers in the left and right and a support roller at the bottom end are provided. This device 1 is movable on running rails 9 spanned over hand holes facing to each other in the steam generator 10 with running rollers of the support stage 4. This device 1 is carried in the steam generator 10 with a wire bound to the device through the hand hole along the running rails 9 and stood vertically.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は原子力プラントの蒸
気発生器における管支持板のスケール除去装置や原子力
プラントの蒸気発生器の二次目視点検工具のための昇降
装置等に適用されるテレスコシリンダ式昇降装置に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a scale removing device for a tube support plate in a steam generator of a nuclear power plant, an elevating device for a secondary visual inspection tool of the steam generator of a nuclear power plant, etc. Lifting equipment.

【0002】[0002]

【従来の技術】図6は蒸気発生器の構造を示しており、
この図6にみられるように、蒸気発生器10は管板17
に両端を固定された多数の逆U字形の伝熱管16を有
し、この伝熱管16は(b)図に示すように、適宜配置
された管支持板11のBEC穴20によって支持されて
いる。
2. Description of the Related Art FIG. 6 shows the structure of a steam generator.
As shown in FIG. 6, the steam generator 10 has a tube sheet 17
Has a large number of inverted U-shaped heat transfer tubes 16 of which both ends are fixed, and the heat transfer tubes 16 are supported by BEC holes 20 of a tube support plate 11 arranged appropriately as shown in FIG. .

【0003】この管支持板11のBEC穴20付近には
スケール21が堆積することがある。従来、このスケー
ル21は蒸気発生器10の外周各所に設けられているハ
ンドホール(検査穴)18から、作業員が高圧ホースを
操作して高圧水を吹き付けて除去するか、または図7に
示すごとく支持板目視検査装置の先端に高圧水ノズルを
装着して高所支持板のスケール除去を行なうしかなかっ
た。
A scale 21 may be deposited near the BEC hole 20 of the tube support plate 11. Conventionally, this scale 21 is removed by spraying high-pressure water by an operator operating a high-pressure hose from a hand hole (inspection hole) 18 provided in various places on the outer periphery of the steam generator 10, or as shown in FIG. As described above, the high pressure water nozzle was attached to the tip of the support plate visual inspection device to remove the scale of the support plate at a high place.

【0004】図7の目視検査装置は、第1ブーム25
と、それに回転可能に結合されている第2ブーム26か
ら成り、両方共ハンドホール(検査穴)18から挿入で
き、第1ブーム25に対し第2ブーム26を回転するこ
とにより伝熱管16間で垂直姿勢をとることができる。
The visual inspection apparatus shown in FIG.
And a second boom 26 rotatably connected thereto, both of which can be inserted through the handhole (inspection hole) 18, and by rotating the second boom 26 with respect to the first boom 25, the heat transfer tubes 16 are connected to each other. Can take a vertical position.

【0005】ブームの先端にはパンチルトできるCCD
カメラがついているため、任意のアドレスへの案内、汚
れの除去及び目視検査が出来る。また、第2ブーム26
には多数の伸縮式部材を装備しているため高所支持板ま
で案内出来る。
A CCD that can pan and tilt at the tip of the boom
Since it has a camera, it can guide you to any address, remove dirt, and perform visual inspection. In addition, the second boom 26
Since it is equipped with a large number of telescopic members, it can guide to high-altitude support plates.

【0006】[0006]

【発明が解決しようとする課題】前記図6に示したよう
に、蒸気発生器10の管支持板11のスケール21を除
去するため、従来は蒸気発生器10の外周各所に設けら
れたハンドホール(検査穴)18から作業員が高圧ホー
スを挿入し、操作しながらスケール21を除去していた
が、次の問題があった。
As shown in FIG. 6, in order to remove the scale 21 of the tube support plate 11 of the steam generator 10, conventionally, handholes are provided at various places on the outer circumference of the steam generator 10. An operator inserted a high-pressure hose through the (inspection hole) 18 and removed the scale 21 while operating it, but there were the following problems.

【0007】即ちハンドホールは第1,第2支持板(第
7支持板にあるものがある)にあり、第3〜第6あるい
は第7支持板のスケール除去が出来ない。また、従来の
スケール除去は、作業員の手作業の操作であるため充分
なスケールの除去ができないし、更にまた、手作業のた
め多くの労力と長時間の作業が必要である。
That is, the handhole is in the first and second support plates (some of which are in the seventh support plate), and the scale of the third to sixth or seventh support plates cannot be removed. In addition, the conventional scale removal cannot be performed sufficiently because the scale is manually operated by an operator, and moreover, a lot of labor and a long time are required for the manual work.

【0008】また、図7に示した装置を使用した作業で
は、ブーム26の先端に設けたCCDカメラのみを頼り
にしてブームを起立し高圧水ノズルを案内制御するもの
であるため高圧水ノズルの正確な位置決めができない
上、起立したブームの位置を固定するロック機構がない
ためブームの鉛直度が保てないという問題があった。
Further, in the work using the apparatus shown in FIG. 7, since the boom is erected and the high pressure water nozzle is guided and controlled only by the CCD camera provided at the tip of the boom 26, the high pressure water nozzle There is a problem that the verticality of the boom cannot be maintained because there is no lock mechanism that fixes the position of the standing boom, as well as accurate positioning is not possible.

【0009】本発明は前記の問題点に鑑み提案するもの
であり、原子力プラントの蒸気発生器内にハンドホール
から挿入可能で、蒸気発生器内の所定位置で最上段の管
支持板から最下段の管支持板まで昇降可能で、内部の目
視点検や管支持板のスケール除去を確実、かつ、迅速に
行える昇降装置を提供することを課題としている。
The present invention is proposed in view of the above-mentioned problems, and can be inserted into a steam generator of a nuclear power plant from a handhole, and the pipe support plate from the uppermost stage to the lowermost stage at a predetermined position in the steam generator. It is an object of the present invention to provide an elevating device that can ascend / descend to a pipe support plate and can perform visual inspection of the inside and scale removal of the pipe support plate reliably and quickly.

【0010】[0010]

【課題を解決するための手段】本発明は、前記した課題
を解決するため、複数段に伸縮可能な複数のテレスコシ
リンダ、及び同テレスコシリンダの下端が固定され左右
に複数個の走行ローラと最下端に支持ローラを設けられ
た支持台を有する昇降装置を提供する。
SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a plurality of telescopic cylinders that can be expanded and contracted in a plurality of stages, and a lower end of the telescopic cylinder is fixed, and a plurality of running rollers and right and left rollers. Provided is an elevating device having a support base provided with a support roller at its lower end.

【0011】この昇降装置は、蒸気発生器の対向するハ
ンドホールにかけ渡された走行レール上を前記支持台の
走行ローラによって移動可能であり、またその昇降装置
はそれに結んだワイヤによって前記ハンドホールから前
記走行レールに沿って蒸気発生器内に搬入される。
This elevating device can be moved by the traveling rollers of the support table on the traveling rails spanning the handholes facing the steam generator, and the elevating device can be moved from the handhole by the wire tied to it. It is carried into the steam generator along the traveling rail.

【0012】こうして蒸気発生器内に搬入された昇降装
置は前記ワイヤによって鉛直に立て起こされ、所定位置
で前記テレスコシリンダを伸縮させることで最上段の管
支持板から最下段の管支持板まで上下方向に昇降可能に
構成されている。
The elevating device thus carried into the steam generator is vertically raised by the wire, and the telesco cylinder is expanded and contracted at a predetermined position to move the upper and lower pipe support plates up and down. It is configured to be able to move up and down.

【0013】本発明のテレスコシリンダ式昇降装置は、
前記のように構成されており、複数段例えば11段に伸
縮可能な複数のテレスコシリンダにより、最下段から最
上段の管支持板までの距離を上下方向に昇降可能であ
り、また縮少時の高さは最下段の管支持板上の高さまで
伸縮できる。
The telescopic cylinder type lifting device of the present invention comprises:
With the configuration as described above, a plurality of telescopic cylinders capable of expanding and contracting in, for example, 11 stages, can vertically move up and down the distance from the lowermost stage to the uppermost stage tube support plate, and at the time of reduction. The height can be expanded and contracted to the height above the bottom tube support plate.

【0014】また、本発明による昇降装置は、蒸気発生
器のハンドホール(検査穴)から搬入容易で、鉛直に立
て起こしができ、例えば蒸気発生器ハンドホールの両サ
イドに設けた手動ウインチ等で、昇降装置に結んだワイ
ヤを張ることにより完全な位置決め固定ができる。
Further, the lifting device according to the present invention can be easily carried in from the steam generator handhole (inspection hole) and can be vertically raised and raised. For example, a manual winch provided on both sides of the steam generator handhole. By positioning the wire tied to the lifting device, complete positioning and fixing can be performed.

【0015】更に、本発明による昇降装置では、テレス
コシリンダの下部の支持台に走行ローラ及び支持ローラ
を設けることで、走行レールと最下段の管支持板とによ
り、安定して前後に正確な位置決め移動できる。
Further, in the lifting device according to the present invention, the traveling roller and the supporting roller are provided on the supporting table below the telescopic cylinder, so that the traveling rail and the lowermost tube supporting plate can stably and accurately position the front and rear. You can move.

【0016】従って、テレスコシリンダの先端に伸縮腕
やノズル装置を装着してスケール除去装置に適用したと
きは、蒸気発生器内における各段の管支持板に堆積した
スケールを完全に除去することができるし、テレスコシ
リンダの先端に管群内観察用のカメラ等を取付けて観察
用装置としたときは的確な管群内観察を行なえる。
Therefore, when the telescopic cylinder is equipped with a telescopic arm and a nozzle device and applied to a scale removing device, it is possible to completely remove the scale accumulated on the tube supporting plate of each stage in the steam generator. However, if a camera for observing the inside of the tube group is attached to the tip of the telescopic cylinder to make an observation device, the inside of the tube group can be observed accurately.

【0017】[0017]

【発明の実施の形態】以下、本発明によるテレスコシリ
ンダ式昇降装置について図1〜図5に示した実施の一形
態に基づいて具体的に説明する。なお、以下の実施の形
態において、図6,図7に示した従来の装置と同じ構成
の部分には説明を簡単にするため同じ符号を付してあ
る。
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a telescopic cylinder type lifting device according to the present invention will be specifically described based on the embodiment shown in FIGS. In the following embodiments, the same components as those of the conventional device shown in FIGS. 6 and 7 are designated by the same reference numerals for the sake of simplicity.

【0018】図1及び図2において、昇降装置1は11
段階の伸縮可能な複数のテレスコシリンダ2を有し、夫
々の上端は単一のフランジ3に固定され、下端は導圧穴
15を有する単一の支持台4に固定されている。蒸気発
生器10の対向するハンドホール(検査穴)18に走行
レール9がかけ渡されている。
In FIGS. 1 and 2, the lifting device 1 includes 11
It has a plurality of telescopic cylinders 2 which can be expanded and contracted in stages, and the upper end of each is fixed to a single flange 3 and the lower end is fixed to a single support base 4 having pressure guiding holes 15. The traveling rail 9 is bridged across the handholes (inspection holes) 18 of the steam generator 10 which face each other.

【0019】図3に見られるように、支持台4は支持台
車4−1を有し、その支持台車4−1は、その左右両側
に4個づつ設けられた走行ローラ13が図4に見られる
ように走行レール9と係合していて、走行レール9に沿
って移動自在となっている。
As shown in FIG. 3, the support base 4 has a support carriage 4-1. The support carriage 4-1 has four traveling rollers 13 provided on each of the left and right sides thereof as shown in FIG. As described above, it is engaged with the traveling rail 9 and is movable along the traveling rail 9.

【0020】このように走行レール9に沿い移動自在な
支持台車4−1に対し支持軸4−2によって支持台4が
回動自在に取付けられている。従って、支持台4は、テ
レスコシリンダ2と共に支持台車4−1に対し支持軸4
−2のまわりに回動でき、走行レール9と平行に倒され
た状態から走行レール9に垂直な位置まで立て起こし可
能である。
Thus, the support base 4 is rotatably attached to the support carriage 4-1 which is movable along the traveling rail 9 by the support shaft 4-2. Therefore, the support base 4 together with the telescopic cylinder 2 supports the support shaft 4 with respect to the support carriage 4-1.
It can be rotated around -2 and can be erected from a state in which it is laid parallel to the traveling rail 9 to a position perpendicular to the traveling rail 9.

【0021】このように走行レール9上を支持台4と共
に走行可能なテレスコシリンダ2にはその下端と上端に
シリンダ立て起こし用ワイヤ6aが、また上端のフラン
ジ3にはシリンダ収縮用ワイヤ6bがつながれ、シリン
ダ収縮用ワイヤ6bはテレスコシリンダ2の外部を通
り、滑車7’によって下端から導き出されている。
In this way, the telescopic cylinder 2 which can travel on the traveling rail 9 together with the support 4 is connected to the lower end and the upper end of the cylinder raising wire 6a, and the upper end flange 3 is connected to the cylinder contracting wire 6b. The cylinder contracting wire 6b passes through the outside of the telescopic cylinder 2 and is guided from the lower end by a pulley 7 '.

【0022】これらのシリンダ立て起こし用ワイヤ6a
及びシリンダ収縮用ワイヤ6bは、それぞれ、滑車7を
介して、ハンドホール18の外側のウインチ取付台8に
設置された複数個のシリンダ立て起こし用手動ウインチ
5a及びシリンダ収縮用手動ウインチ5bに結合されて
いる。
These cylinder raising wires 6a
The cylinder contracting wire 6b and the cylinder contracting wire 6b are connected via a pulley 7 to a plurality of cylinder raising manual winches 5a and cylinder contracting manual winches 5b installed on a winch mount 8 outside the handhole 18, respectively. ing.

【0023】テレスコシリンダ2の下端が固定されてい
る支持台4は、図3及び図4に詳細構造を示してあるよ
うにフレーム12の左右に設けられた走行ローラ13の
他、その下端に支持ローラ14を有し、同支持ローラ1
4は最下段の管支持板11上を移動できるようになって
いる。
The support base 4, to which the lower end of the telescopic cylinder 2 is fixed, is supported on the lower ends of the running rollers 13 provided on the left and right of the frame 12 as shown in detail in FIGS. 3 and 4. The support roller 1 having a roller 14
4 can move on the lowermost tube support plate 11.

【0024】テレスコシリンダ2は複数段階例えば11
段階に伸縮でき、導圧穴15から導かれる流体圧によっ
て最上段の管支持板11まで伸長し、また、シリンダ収
縮用ワイヤ6bを引くことによって最下段の管支持板1
1上まで縮少できる。
The telescopic cylinder 2 has a plurality of stages, for example, 11
It can be expanded and contracted in stages, and is extended to the uppermost tube support plate 11 by the fluid pressure introduced from the pressure guiding hole 15, and the lowermost tube support plate 1 is drawn by pulling the cylinder contraction wire 6b.
Can be reduced to 1 above.

【0025】本昇降装置1を蒸気発生器のスケール除去
装置の昇降装置とする場合は、図5に示すように、テレ
スコシリンダ2先端の単一フランジ3に伸縮腕23、ノ
ズル装置22、それに目視点検具等を装着する。
When the elevating device 1 is used as an elevating device for a steam generator scale removing device, as shown in FIG. 5, the telescopic cylinder 2 has a single flange 3 on which a telescopic arm 23, a nozzle device 22, and a visual check are provided. Wear inspection tools.

【0026】本昇降装置1を使用するに際しては、支持
台車4−1に対し支持台4とテレスコシリンダ2を支持
軸4−2のまわりに回動させることにより走行レール9
に沿わせた状態に倒して、蒸気発生器10のハンドホー
ル18から前記昇降装置1をワイヤ6aで引いて走行レ
ール9に沿って搬入する。
When using the lifting device 1, the support rail 4 and the telescopic cylinder 2 are rotated with respect to the support carriage 4-1 by rotating the support rail 4 and the telescopic cylinder 2 around the support shaft 4-2.
The elevating device 1 is pulled from the handhole 18 of the steam generator 10 by the wire 6a and carried in along the traveling rail 9.

【0027】そして蒸気発生器10内の特定位置で、シ
リンダ立て起こし用手動ウインチ5aによってシリンダ
立て起こし用ワイヤ6aを操作して、支持台4とテレス
コシリンダ2を支持軸4−2のまわりに回して鉛直に立
て起こし、シリンダ立て起こし用ワイヤ6aで張り合っ
て固定させる。
At a specific position in the steam generator 10, the cylinder raising wire 5a is operated by the cylinder raising manual winch 5a to rotate the support base 4 and the telescopic cylinder 2 around the support shaft 4-2. And vertically erect, and the cylinder erecting wire 6a is attached to each other and fixed.

【0028】このようにテレスコシリンダ2が鉛直にさ
れた状態で、テレスコシリンダ2は、支持台車4−1の
走行ローラ13が走行レール9に沿って転動すると共に
支持ローラ14が管支持板11上を転がることにより、
ワイヤ6aを引くと走行レール9に沿って蒸気発生器1
0内を移動できる。
In the telescopic cylinder 2 thus vertically arranged, in the telescopic cylinder 2, the traveling roller 13 of the supporting carriage 4-1 rolls along the traveling rail 9 and the supporting roller 14 causes the supporting roller 14 to move. By rolling over
When the wire 6a is pulled, the steam generator 1 is moved along the traveling rail 9.
Can move in 0.

【0029】以上のように、本発明の昇降装置を採用し
たスケール除去装置を蒸気発生器10内に入れるには、
伸縮腕23を縮めた状態として昇降装置1をハンドホー
ル18から走行レール9に沿って、手動ウインチ5aに
より搬入し(図1)、規定位置で鉛直に立て起こし、下
端の支持ローラ14を管支持板11に当て、ワイヤ6a
にて固定させ、管支持板11のフロースロット24を通
してテレスコシリンダ2を上方に伸長させる。伸長させ
たテレスコシリンダ2を収縮させるには、シリンダ収縮
用手動ウインチ5bを作動させシリンダ収縮用ワイヤ6
bで引き下げる。
As described above, in order to put the scale removing device adopting the lifting device of the present invention in the steam generator 10,
With the telescopic arm 23 contracted, the lifting device 1 is carried in from the handhole 18 along the traveling rail 9 by the manual winch 5a (FIG. 1) and vertically raised at a prescribed position to support the support roller 14 at the lower end by pipe support. Hit the plate 11, wire 6a
Then, the telescopic cylinder 2 is extended upward through the flow slot 24 of the tube support plate 11. In order to contract the expanded telescopic cylinder 2, the cylinder contraction manual winch 5b is operated to activate the cylinder contraction wire 6.
Pull down with b.

【0030】このようにして、最下段から最上段の管支
持板11までの距離を伸長させ、また、縮少時の高さ
は、最下段の管支持板11上の高さ以内とすることがで
き、各管支持板11のスケールを完全に除去することを
可能とする。
In this way, the distance from the lowermost tube support plate 11 to the uppermost tube is extended, and the height when reduced is within the height above the lowermost tube support plate 11. This makes it possible to completely remove the scale of each tube support plate 11.

【0031】以上、本発明を図示した実施形態に基づい
て具体的に説明したが、本発明がこれらの実施形態に限
定されず特許請求の範囲に示す本発明の範囲内で、その
構成に種々の変更を加えてよいことはいうまでもない。
The present invention has been specifically described above based on the illustrated embodiments, but the present invention is not limited to these embodiments, and various configurations are possible within the scope of the present invention shown in the claims. It goes without saying that changes may be made.

【0032】例えば、前記実施形態ではワイヤを操作す
るのに手動ウインチを用いているが、これは電動ウイン
チ等適宜の手段でよいし、また前記実施形態ではテレス
コシリンダ2の上端にノズル装置22等を装着しスケー
ル除去装置として用いる場合を示したが、テレスコシリ
ンダ2の上端にカメラ等のみを取付けて蒸気発生器の二
次目視点検装置として適用することも可能である。
For example, although a manual winch is used to operate the wire in the above-mentioned embodiment, this may be an appropriate means such as an electric winch, and in the above-mentioned embodiment, the nozzle device 22 or the like is provided at the upper end of the telescopic cylinder 2. Although it has been shown that it is mounted and used as a scale removing device, it is also possible to attach only a camera or the like to the upper end of the telescopic cylinder 2 and apply it as a secondary visual inspection device of the steam generator.

【0033】[0033]

【発明の効果】以上説明したように、本発明は、複数段
に伸縮可能なテレスコシリンダの下端に走行ローラ及び
支持ローラを具えた支持台を設けて構成した昇降装置
を、蒸気発生器の対向するハンドホール(検査穴)にか
け渡された走行レール上をハンドホール近くに設置した
複数の手動ウインチ機構とワイヤ等によって搬入、立て
起こし後、ワイヤを張り合せることによって蒸気発生器
内に固定するため、正確な位置決めができる。
As described above, according to the present invention, an elevating device constituted by providing a supporting base having a traveling roller and a supporting roller at the lower end of a telescopic cylinder capable of expanding and contracting in a plurality of stages is provided to face a steam generator. In order to fix it in the steam generator by bringing in the wires on the traveling rail that has been passed over the handhole (inspection hole) by multiple hand-operated winch mechanisms installed near the handhole and raising them, and then attaching the wires. , Accurate positioning is possible.

【0034】そして走行レールの所定位置上でテレスコ
シリンダを伸縮させることによって蒸気発生器内の最下
段の管支持板と最上段の管支持板との間を伸縮させて所
望の作業を行なうことができる。
By expanding and contracting the telescopic cylinder on a predetermined position of the traveling rail, the space between the lowermost tube support plate and the uppermost tube support plate in the steam generator can be expanded and contracted to perform desired work. it can.

【0035】例えば、テレスコシリンダの先端に伸縮
腕、ノズル装置及び目視点検具等を装着することで、各
段の管支持板に堆積したスケールを完全に除去すること
が出来る、スケール除去装置が構成されるので産業上極
めて効果が大きい。また、テレスコシリンダの先端に管
群内観察用のカメラ機構及びそのカメラを管群内に挿入
する送り装置を搭載することにより、管群内観察用装置
として使用が出来る。
For example, a scale removing device is constructed which is capable of completely removing the scale accumulated on the tube support plate at each stage by mounting an expandable arm, a nozzle device, a visual inspection tool, etc. at the tip of the telescopic cylinder. Therefore, it is extremely effective in industry. Further, by mounting a camera mechanism for observing the inside of the tube group and a feeding device for inserting the camera into the tube group at the tip of the telescopic cylinder, it can be used as an apparatus for observing the inside of the tube group.

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

【図1】本発明の実施の一形態に係る昇降装置の説明図
で、そのテレスコシリンダを横にした状態で蒸気発生器
内に搬入した状態を示している。
FIG. 1 is an explanatory view of an elevating device according to an embodiment of the present invention, showing a state in which a telescopic cylinder is laid in and carried into a steam generator.

【図2】図1の装置において、テレスコシリンダを立て
起こした状態を示す説明図。
FIG. 2 is an explanatory view showing a state in which a telescopic cylinder is raised in the apparatus shown in FIG.

【図3】図2のA部における支持台の拡大図。FIG. 3 is an enlarged view of a support base in a portion A of FIG.

【図4】図3に示した支持台の側面図。FIG. 4 is a side view of the support base shown in FIG.

【図5】図1及び図2に示した昇降装置を用いた、蒸気
発生器のスケール除去装置の作動状態を示す斜視図。
5 is a perspective view showing an operating state of a scale removing device of a steam generator using the lifting device shown in FIGS. 1 and 2. FIG.

【図6】蒸気発生器の構造を示す図面で(a)は縦断面
図、(b)はその管支持板の部分的斜視図。
6A and 6B are drawings showing a structure of a steam generator, in which FIG. 6A is a longitudinal sectional view and FIG. 6B is a partial perspective view of a tube support plate thereof.

【図7】従来の管支持板の目視検査装置を示す側面図。FIG. 7 is a side view showing a conventional visual inspection device for a tube support plate.

【符号の説明】[Explanation of symbols]

1 昇降装置 2 テレスコシリンダ 3 フランジ 4 支持台 4−1 支持台車 4−2 支持軸 5a シリンダ立て起こし用手動ウインチ 5b シリンダ収縮用手動ウインチ 6a シリンダ立て起こし用ワイヤ 6b シリンダ収縮用ワイヤ 7 滑車 8 ウインチ取付台 9 走行レール 10 蒸気発生器 11 管支持板 12 フレーム 13 走行ローラ 14 支持ローラ 15 導圧穴 16 伝熱管 17 管板 18 ハンドホール(検査穴) 19 流路穴 20 BEC穴 21 スケール 22 ノズル装置 23 伸縮腕 24 フロースロット 1 Lifting device 2 Telesco cylinder 3 Flange 4 Support base 4-1 Support carriage 4-2 Support shaft 5a Cylinder raising manual winch 5b Cylinder contraction manual winch 6a Cylinder raising wire 6b Cylinder contraction wire 7 Pulley 8 winch mounting Base 9 Traveling rail 10 Steam generator 11 Pipe support plate 12 Frame 13 Traveling roller 14 Support roller 15 Pressure guide hole 16 Heat transfer tube 17 Tube plate 18 Hand hole (inspection hole) 19 Flow path hole 20 BEC hole 21 Scale 22 Nozzle device 23 Expansion and contraction Arm 24 flow slot

フロントページの続き (72)発明者 亀井 博正 兵庫県高砂市荒井町新浜二丁目1番1号 三菱重工業株式会社高砂研究所内Continued Front Page (72) Inventor Hiromasa Kamei 2-1-1 Niihama, Arai-cho, Takasago-shi, Hyogo Mitsubishi Heavy Industries Ltd. Takasago Research Center

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 原子力プラントの蒸気発生器内における
昇降装置であって、複数段に伸縮可能な複数のテレスコ
シリンダ、及び同テレスコシリンダの下端が固定され左
右に複数個の走行ローラと最下端に支持ローラを設けら
れた支持台を有してなり、前記昇降装置は、前記蒸気発
生器の対向するハンドホールにかけ渡された走行レール
上を前記支持台の走行ローラによって移動可能であり、
同昇降装置はそれに結んだワイヤによって前記ハンドホ
ールから前記走行レールに沿って前記蒸気発生器内に搬
入して鉛直に立て起こされ、所定位置で前記テレスコシ
リンダを伸縮させることで上段の管支持板から下段の管
支持板まで上下方向に昇降可能に構成されていることを
特徴とするテレスコシリンダ式昇降装置。
1. An elevating device in a steam generator of a nuclear power plant, comprising a plurality of telescopic cylinders capable of expanding and contracting in a plurality of stages, a lower end of the telescopic cylinder being fixed, and a plurality of traveling rollers on the left and right and a lowermost end. Comprising a support base provided with a support roller, the elevating device is movable by a travel roller of the support base on a travel rail spanned over the handholes of the steam generator facing each other,
The lifting device is carried into the steam generator from the handhole along the traveling rail by a wire tied to the lifting device and vertically erected, and the telesco cylinder is expanded and contracted at a predetermined position so that the upper tube support plate is extended. A telesco cylinder type lifting device, which is configured to be vertically movable from a pipe support plate to a lower pipe support plate.
JP07242848A 1995-09-21 1995-09-21 Telescopic cylinder type lifting device Expired - Fee Related JP3085888B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP07242848A JP3085888B2 (en) 1995-09-21 1995-09-21 Telescopic cylinder type lifting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP07242848A JP3085888B2 (en) 1995-09-21 1995-09-21 Telescopic cylinder type lifting device

Publications (2)

Publication Number Publication Date
JPH0990084A true JPH0990084A (en) 1997-04-04
JP3085888B2 JP3085888B2 (en) 2000-09-11

Family

ID=17095192

Family Applications (1)

Application Number Title Priority Date Filing Date
JP07242848A Expired - Fee Related JP3085888B2 (en) 1995-09-21 1995-09-21 Telescopic cylinder type lifting device

Country Status (1)

Country Link
JP (1) JP3085888B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0979512A2 (en) * 1996-06-14 2000-02-16 R. Brooks Associates, Inc. Inspection device
JP2014222140A (en) * 2009-05-27 2014-11-27 アール. ブルックス アソシエイツ インコーポレーティッド Method of moving vehicle inspection system
CN107062983A (en) * 2016-12-29 2017-08-18 广西恩康机械设备有限公司 The many times of strokes amplification jack of tubular heat exchanger cleaning device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0979512A2 (en) * 1996-06-14 2000-02-16 R. Brooks Associates, Inc. Inspection device
EP0979512A4 (en) * 1996-06-14 2000-02-16 Brooks R Ass Inc Inspection device
JP2014222140A (en) * 2009-05-27 2014-11-27 アール. ブルックス アソシエイツ インコーポレーティッド Method of moving vehicle inspection system
CN107062983A (en) * 2016-12-29 2017-08-18 广西恩康机械设备有限公司 The many times of strokes amplification jack of tubular heat exchanger cleaning device

Also Published As

Publication number Publication date
JP3085888B2 (en) 2000-09-11

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