JPH0314243U

JPH0314243U -

Info

Publication number: JPH0314243U
Application number: JP7434689U
Authority: JP
Priority date: 1989-06-27
Filing date: 1989-06-27
Publication date: 1991-02-13
Anticipated expiration: 2004-06-27
Also published as: JPH0747562Y2

Description

[Brief explanation of drawings]

第１図は本考案によるワーキングステーシヨン
の滑車の取付位置及び使用状態を示す概略断面図
、第２図はそのワーキングステーシヨンの構造組
成を示す要部斜視図、第３図はそのうち、特に（
電動）昇降機の構造組成をを示す模式図、第４図
は高さセンサの取付を示し、ａはその概略平面図
、ｂはその概略正面図、第５図は荷重計の概略取
付図、第６図は水平レールへの各灰落し装置及び
検査装置の取付状態の一例を示す模式図、第７図
は昇降制御方式の基本フローチヤートを示し、ａ
はワーキングステーシヨンの自動上昇に関するフ
ローチヤート図、ｂはその自動停止に関するフロ
ーチヤート図、第８図は従来の総足場の使用状態
を示す一部概略斜視図である。１……（ボイラ）炉内、１ａ……天井壁、１ｂ
〜１ｄ……各側壁、１ｅ……炉底、１ｆ……アー
チ部、２……ボイラ鉄骨、３……滑車、４……吊
りワイヤ、６……ワーキングステーシヨン、６ａ
……足場兼用外枠、６ｂ……ビーム、６ｃ……柱
、６ｄ……水平レール、８，８_１〜８_６……各（
電動）昇降機、１２……高さセンサ、１２ｂ……
シーブ、１３……荷重計、１４……灰落し装置、
１５……検査装置、１６ａ……台車。 Fig. 1 is a schematic sectional view showing the mounting position and usage condition of the pulley of the working station according to the present invention, Fig. 2 is a perspective view of the main parts showing the structural composition of the working station, and Fig.
Fig. 4 is a schematic diagram showing the structural composition of the electric (electric) elevator, Fig. 4 shows the installation of the height sensor, a is its schematic plan view, b is its schematic front view, Fig. 5 is a schematic installation diagram of the load cell, Figure 6 is a schematic diagram showing an example of how each ash removal device and inspection device are installed on the horizontal rail, and Figure 7 is a basic flowchart of the elevation control system.
FIG. 8 is a flowchart regarding automatic lifting of the working station, FIG. 8 is a flowchart regarding automatic stopping thereof, and FIG. 1... (boiler) furnace interior, 1a... ceiling wall, 1b
~1d... Each side wall, 1e... Hearth bottom, 1f... Arch section, 2... Boiler steel frame, 3... Pulley, 4... Hanging wire, 6... Working station, 6a
...Outer frame for scaffolding, 6b...Beam, 6c...Column, 6d...Horizontal rail, 8,8 ₁ to 8 ₆ ...Each (
electric) elevator, 12...height sensor, 12b...
Sheave, 13...load cell, 14...ash removal device,
15... Inspection device, 16a... Trolley.

Claims

[Scope of utility model registration request]

This is a working station for maintenance and inspection inside the boiler of a boiler such as a thermal power plant that can be raised and lowered in the vertical direction inside the furnace, and an appropriate number of pulleys are installed on both the boiler steel frame above the boiler ceiling wall and inside the arch section below it. Attach one end of the hanging wire, which is hung on these pulleys and stretched inside the furnace, to an appropriate position on the outer frame that also serves as a scaffolding and the beam that passes inside the outer frame, and fix it via a load meter, and The ends are wrapped around a plurality of elevators equipped with height sensors attached to the beams, and the entire scaffolding outer frame is suspended from the pulleys via the hanging wires. Level maintenance control is performed by increasing/decreasing the lifting speed so that the load remains constant, and for elevators in between, control is performed to distribute the load evenly by increasing/decreasing the lifting speed so that the value on the load meter remains constant. A horizontal rail is attached to a column raised from the outer frame, and each ash removal device and inspection device for the inner wall of the furnace are mounted on the horizontal rail via a movable trolley. working station.