JPS5952800A - Cleaning device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a cleaning device for cleaning a wall surface of, for example, a lining tank.

[Technical Background of the Invention] For example, in an atomic horn power generation plant, a large number of lined tanks lined with stainless steel or the like are installed.

Conventionally, this cleaning work of the lining tank has been done manually. When cleaning the lining tank manually, there are methods in which a scaffold is erected in advance inside the lining tank, a worker climbs into a gondola, and the like.

[Problems with the background art] However, when scaffolding is erected in this way, a large number of man-hours are required for assembling the scaffolding, and
When carrying out work C)9 on a gondola, there is a problem in that the cleaning worker is in a very unstable state due to the reaction force of the cleaning water.

Furthermore, especially when cleaning a lining tank contaminated with radioactive substances, such as in a nuclear power plant, there is a risk that workers may be exposed to a large amount of radiation.

OBJECT OF THE INVENTION] The present invention has been made in response to such conventional circumstances, and
It is an object of the present invention to provide a cleaning device that can freely clean the wall surface of a lining tank or the like by remote control.

[Summary of the Invention] That is, the present invention provides a set of bodies that are connected to each other so as to be relatively movable and are each provided with an adsorption means to a cleaning wall, a driving means that alternately drives the bodies of the set, and a body of the set of bodies. This cleaning device is characterized by comprising a cleaning means disposed on at least one side of the body and cleaning a cleaning wall.

[Embodiment of the Invention] The details of the present invention will be described below with reference to an embodiment shown in the drawings.

1 to 3 show a cleaning device according to an embodiment of the present invention, and in the figures, reference numeral 1 indicates an outer body. An inner body 2 is connected to the outer body 1 so as to be relatively movable. A endless track 5 having a large number of wheels 3 and drive wheels 4 is independently disposed on the outer body 1 and the inner body 2, respectively.

As shown in FIG. 2, a monitor 7 is provided inside the outer body and the inner body 2, which is connected to a movable cable 6 that drives the drive wheels 4 of the endless track 5.

The driving force of the motor 7 is transmitted via a reduction gear 18 and a gear 9 to a shaft 10 that connects the drive wheels 4.

Vacuum suction cups 11 are provided at the bottoms of the outer body 1 and the inner body 2, respectively, for suctioning the pair of cleaning walls, and the vacuum suction cups 811 are connected to the vacuum piping 12. At the joint between the outer body 1 and the inner body 2, a rotating brush 13 that cleans the wall surface is supported on the outer body 1 by a sabot 14. An injection nozzle 15 for rotating the rotating brush 13 is disposed near the rotating brush 13, and the injection nozzle 15 is connected to a supply pipe 16.

Furthermore, a suction nozzle 17 is installed near this rotating brush 13.
is provided, and this suction nozzle 17 is connected to the suction piping 1.
8 is connected.

In addition, the bottom of the inner body 2 is connected to the movement of the rotating brush 13.
The inner body 2 can be accommodated in the outer body 1 by a distance from the stopper opening.

Hanging ears 19 are provided on both sides I11+15 of the outer body 1, on the rear surface of the outer body 1, and on the front surface of the inner body 2, respectively, for connecting and covering the hook of a crane.

Fig. 4 and Fig. 5 show the cleaning of the wall surface of the lining tank using the cleaning device configured as described above. Measures have been taken to prevent falls. The cleaning device is equipped with vacuum piping 1 on the lined cypress wall.
It is adsorbed by vacuum suction q811 which is evacuated by 2.

The rotating brush 13 is rotationally driven by jet water from a spray nozzle 15 connected to a supply pipe 16 to clean the wall surface 20, and this jet water is used as cleaning water. This cleaning water is constantly sucked into the tank by the suction nozzle 17 so as not to scatter into the tank, and this cleaning water is reused as cleaning water again.

After cleaning with the rotating brush 13 is completed in this way,
The cleaning device is moved by a hand control panel 21 at the operator's hand.

That is, when moving the cleaning device in the direction of arrow a in FIG. 4, for example, the inner body 2 is first moved as shown in FIG. 6. This movement of the inner body 2 breaks the vacuum of the vacuum suction cup 11 disposed on the inner body 2, and then
After rotating the C motor 7 through the power coupler 12 and reducing the speed by J2 to the deceleration 18, the gear 9 and the gear 1 are rotated.
This is done by rotating the drive wheels 4 through U' and driving the endless tracks 5 through 10. Then, when it reaches a predetermined position, the motor 7 is stopped, and the vacuum suction installed on the inner body 2! 11 is evacuated, and the inner body 2 is attracted onto the wall surface 20.

Thereafter, as shown in FIG. 6, the outer body 1 is moved. That is, the vacuum of the vacuum suction cup 11 of the outer body 1 is broken, the motor 7 is rotated by the power couple 12, and this drive horn is transmitted to the deceleration +X 18, gear 9, and shift 10 to the 4 rotation, Jζ infinite track f! 5 is moved, and the outer body 1 is moved to the right in the figure.

When the motor 7 reaches a predetermined position, the motor 7 is stopped, and the vacuum suction cup 11 disposed on the outer body 1 is evacuated.
The outer body 1 is fixed on a wall surface 20. Therefore, due to such movement, the rotating brush 1 disposed on the outer body 1
3 makes it possible to clean a new location on the wall surface 20.

By repeating this operation many times, the entire wall surface 20 can be cleaned as shown in FIG. 7.

J3, when moving the cleaning device to the left in FIG. 4, the rotation direction of the motor 7 is reversed and the outer body 1 is moved first. Further, when changing the height of the wall surface 20, the vacuum of the vacuum suction cup 11 is broken and the crane hook is lowered.

Furthermore, in the cleaning device configured as described above, by changing the way the cleaning device is hung, it is possible to clean not only in the horizontal direction but also in the vertical direction.

[Effects of the Invention] As described above, according to the cleaning device of the present invention, it is possible to quickly and reliably clean the wall surface by remote control, so it is possible to reduce the number of workers and shorten the working time. . Furthermore, when this device is used in a lined tank or the like to which radioactive substances are attached, it is possible to significantly reduce the radiation exposure of workers.

In addition, in the above embodiment, an example was described in which a C vacuum suction cup was used as a means of adsorption to a wall surface, but for example, if the wall surface is made of a magnetic material such as iron, it is possible to use an adsorption means such as a magnet. Of course, it is possible.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a cleaning device according to an embodiment of the present invention, FIG. 2 is a vertical sectional view taken along the line ■-■ in FIG. 1, and FIG.
4 is an explanatory diagram showing a state in which a wall surface is being cleaned using the cleaning device shown in FIG. 1, FIG. 5 is a side view of FIG. 4, and FIG. 6 is a diagram similar to that shown in FIG. FIG. 7 is an explanatory diagram for explaining the method for moving the cleaning device shown in FIG. 1, and FIG. 7 is an explanatory diagram for explaining the method for moving the cleaning device shown in FIG. 1......Outer body 2...
・・・・・・Inner body 4・・・・・・・・・Drive wheel 7・・・・・・・・・Motor 1」・・・・・・・・・・・・・Vacuum suction cup 13...
...Rotating brush (7317) Representative Patent Attorney Kensuke Norichika (and 1 other person) Figure 1 Figure 2 Figure 3 b If: 15 Figure 4 Figure 5

Claims (1)

[Claims] (1) A set of bodies connected so as to be relatively movable and each provided with an adsorption means to the wall to be cleaned, a driving means for alternately driving these sets of bodies, and a drive means disposed on at least one of the sets of bodies. 1. A cleaning device comprising a cleaning means for cleaning the wall to be cleaned.