JPH081107A - Cleaning device in running water for waterways - Google Patents

Abstract

(57) [Summary] When the water absorption fan 13 is driven, the water 12 is sucked through the lower opening 11 of the skirt member 10 and is discharged above the cleaning device main body 4 at a predetermined speed. The cleaning device body 4 receives it, the drive wheels 5 are pressed toward the bottom wall side, and the cleaning device body 4 does not flow,
When the drive wheel 5 is driven while the water-absorption fan 13 is driven and the cleaning brush 6 is rotated, the cleaning brush 6 removes the deposits on the bottom wall, and the distance detector 27 keeps a constant distance from the side wall. The main body 4 of the cleaning device travels along the wall surface 2 of the waterway while maintaining the distance. [Effect] By driving the water absorption fan, water is absorbed from the bottom opening of the cleaning device body and discharged to the upper part of the cleaning device body, and the pressure at that time is applied to the drive wheels and pressed against the water channel wall surface with a predetermined pressure. Therefore, even a cleaning device that is lighter in weight than before can be installed on the wall surface of the water channel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a running water cleaning device for a water channel for cleaning the wall surface of a water channel of a power plant, an iron mill or the like.

[0002]

2. Description of the Related Art Conventionally, for example, deposits attached to the wall surface of a water channel of a power plant (for example, mussels and barnacles)
There are two cases of cleaning and removing the cleaning agent by a worker and a cleaning device.

In the case of a worker, the worker enters the water channel after draining water in the water channel where no water flows when the power plant is stopped, or after draining the water in the water channel when the power plant is stopped. The deposits are removed manually.

Similarly, in the case of using the cleaning device, when the power plant is stopped, the cleaning device is carried into the waterway to clean the wall surface of the waterway. By the way, when one water channel is shared by a plurality of power generation plants, the operation of all the power generation plants is rarely stopped, so that the water flow in the water channel is not stopped. Therefore, there is a case where a cleaning device that can clean the wall surface of the waterway is carried into the waterway even under running water to clean the wall surface of the waterway.

[0005]

Generally, it is difficult to secure workers because the waterway of the power plant is unsanitary and is in a dangerous situation.

Further, in the case of a cleaning device which can be cleaned even under running water, the cleaning device is large and heavy so that the cleaning device will not be washed away even under running water. A large-scale loading / unloading device for loading / unloading is required.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a running water cleaning device for a water channel which can solve the above problems.

[0008]

A means for solving the problems in the present invention is an in-stream cleaning device for a canal for cleaning and removing deposits on the canal wall surface in running water, and a drive wheel is provided at the bottom. A cleaning brush is rotatably attached to a predetermined position of the main body of the cleaning device via a support shaft, and a pressing device for pressing the wheel against the wall surface of the water channel in running water with a predetermined pressure is provided. Is a water absorption passage for guiding water from an opening formed in the bottom surface of the cleaning device main body toward the upper part of the cleaning device main body, and is arranged in the middle of the water absorption passage to absorb water from the opening at a predetermined speed. And a water absorption fan for.

Further, the cleaning device main body is provided with a distance detector for detecting the distance between the cleaning device main body and the side wall of the water channel. Further, a cleaning brush is attached to the main body of the cleaning device via an attachment member so as to follow the shape of the wall surface of the water channel.

[0010]

In the above means for solving the problem, when the wall surface of the water channel is cleaned under running water, when the water absorption fan is driven, water is sucked from the bottom opening of the cleaning device main body, and this water moves upward above the cleaning device main body at a predetermined speed. When the cleaning device body receives the pressure due to this release, the drive wheel is pressed against the water channel wall surface and the cleaning device body is installed on the water channel wall surface, the drive wheel is driven while the water absorption fan is driven, and the cleaning brush is rotated. ,
The distance detector keeps a predetermined distance from the wall surface of the water channel constant, and the cleaning device main body runs while removing the adhering matter on the wall surface of the water channel by the cleaning brush.

When the wall surface of the water channel has a circular cross section, the mounting member is curved along the wall surface of the water channel, and the drive wheel, the water absorption fan and the cleaning brush are driven to clean the wall surface of the water channel.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the cleaning device of the present invention will be described below with reference to the overall side view of FIG. 1, the front view of FIG. 2, the plan view of FIG. 3, and the side view showing the usage state of FIG.

The cleaning device according to the embodiment of the present invention is for cleaning and removing the adhering substances 3 adhering to the water channel wall surface (for example, water channel bottom wall) 2 in the water channel 1 of a power plant or the like. Driving wheels 5 that can change direction and can be driven independently are arranged at four corners of the bottom of the apparatus body 4, and support members 7 that project to the front and rear of the cleaning apparatus body 4 to support the cleaning brush 6 are arranged. The cleaning brush 6 is rotatably attached to the plastic support plate 7a attached to the support member 7 via four support shafts 8 attached at right angles.

Further, the cleaning device body 4 is provided with a pressing device 9 for pressing the drive wheels 5 against the wall surface 2 of the water channel in the water flow of the water channel 1 with a predetermined pressure. Skirt member 10 with wide hem attached to 4
And a water absorption fan 13 for taking in water 12 from the lower opening 11 of the skirt member 10 at a predetermined speed. The lower opening 11 of the skirt member 10 projects from the bottom surface of the cleaning device body 4. The water absorbing fan 13 is arranged in the upper narrowed portion 14 of the skirt member 10.

A swimming thruster 15 for swimming the cleaning device main body 4 in water is attached to a side portion of the cleaning device main body 4, and the swimming thruster 15, the cleaning brush 6, and drive wheels are mounted on the cleaning device main body 4. 5, water absorption fan 13
A hydraulic power unit 16 for driving the engine is arranged.

A pair of underwater lights 17 are provided on the front surface of the cleaning device body 4, and a video camera 18 for photographing the situation of the traveling direction of the cleaning device body 4 is attached between the underwater lights 17. The cleaning device main body 4 is constructed so that the situation in the traveling direction can be observed on a monitor TV 19 on the ground, and the swimming thruster 15, the cleaning brush 6, the drive wheel 5, and the water absorption fan 13 are driven adjacent to the monitor TV 19. A control device 20 for performing control is provided.

Further, inside the cleaning device main body 4, the drive wheel 5 is moved to the water channel wall surface 2 side by changing the position of the center of gravity of the cleaning device main body 4 in any posture when the cleaning device main body 4 is brought into water. A posture changing device 35, which will be described later, for changing the posture to a predetermined position is provided.

One end of one electric power composite high tension cable 21 for driving and stopping the swimming thruster 15, the cleaning brush 6, the drive wheel 5, and the water absorption fan 13 is connected to the cleaning device body 4. On the cable 21
A tension sensor (not shown) for detecting the tension of the cable 21 is attached, and as shown in FIG. 4, the other end of the cable 21 is a cable drum 22 with a winch provided on the ground.
The tension sensor is electrically connected to the drive unit of the cable drum 22 via the control device 20, and the tension of the cable 21 is constantly kept constant by a signal from the tension sensor. The drum 22 is appropriately rotated according to the traveling of the cleaning device body 4. Further, by this, it is possible to prevent the traveling obstacle of the cleaning device body 4 due to the unnecessary cable 21 being fed out into the water.

In FIG. 4, reference numeral 25 denotes a loading / unloading crane vehicle for loading / unloading the cleaning device through the opening 26 of the water channel 1. Further, a distance detector 27 for detecting a distance between the cleaning device main body 4 and the water channel wall surface (water channel side wall) 2 of the water channel 1 is provided, and the distance detector 27 detects the distance between the water channel wall surface 2 during the cleaning operation. Then, the cleaning device body 4 can be made to travel along the waterway wall surface 2.

As shown in FIG. 5, the cleaning brush 6 is
The rotary disk 28 is attached to the support shaft 8 and a flexible brush material 29 is planted at a right angle on the inclined portion of the rotary disk 28.

Next, the configuration of the posture changing device 35 is shown in FIG.
Will be described based on a front view showing a normal posture A in which the drive wheels 5 are downward, a side view showing a normal posture A in FIG. 9, and a front view showing a reverse posture B in which the drive wheels 5 are upward in FIG.

The posture changing device 35 has a pair of rod-shaped rods having a U-shape in a side view, the end of which is rotatably supported (for example, in a range of 120 °) on the front surface of the cleaning device main body 4 via a support shaft 36. The weights 37 and 38 and the front and rear surfaces of the cleaning device main body 4 are rotatably supported at their base ends via brackets 39, and their tip ends are rotatable about the support shaft 36 via a rotating member 40. Hydraulic cylinder device 41, 4 attached to
2 and a buoyancy adjusting tank (not shown) disposed inside the cleaning device body 4 for holding the cleaning device body 4 at neutral buoyancy.

In the above arrangement, the crane 25 suspends the cleaning device, and the cleaning device is carried into the water channel 1 through the opening 26 provided in advance. At this time, if the cleaning device body 4 is no longer in an appropriate posture due to the flow velocity of the water 12 or the like, the posture of the cleaning device body 4 is changed by the posture changing device 35.

For example, if the bottom wall of the water channel 1 is to be cleaned, the hydraulic thrust cylinder device 4 is driven while the swimming thruster 15 is driven to prevent the cleaning device body 4 from flowing.
By extending 1 and 42, both hydraulic cylinder devices 41 and 42 rotate downward around the support shaft 36 to the side of the cleaning device body 4 as shown in phantom lines in FIG. The center of gravity of the drive wheel 5 is located below the center of buoyancy and the drive wheels 5 are located on the bottom wall side in the normal posture A, and the cleaning device sinks to the bottom wall side under its own weight. By the way, when the cleaning device body 4 does not sink due to the flow, the water absorption fan 13 is rotated at an appropriate speed to suck the water 12 from the lower opening of the skirt member 10 and discharge it above the cleaning device body 4 for cleaning. The device body 4 can be submerged.

After the cleaning device main body 4 is in the normal posture A and has settled on the bottom wall, if the water absorption fan 13 is continuously driven at a predetermined speed, the skirt member 10 will be operated in the same manner as described above.
12 is sucked in through the lower opening 11 of the cleaning device, the water 12 flows at a predetermined speed in the skirt member 10 and is discharged above the cleaning device body 4, and the reaction force due to this discharge is applied to the cleaning device body 4.
Then, the drive wheels 5 are pressed toward the bottom wall. At this time, even if the driving of the swimming thruster 15 is stopped, the cleaning device body 4 can be prevented from being washed away by the reaction force of the water 12.

By adjusting the rotation speed of the water absorption fan 13, the speed at which the water 12 is discharged above the cleaning device body 4 can be adjusted, so that, for example, the water 12 flowing through the water channel 1 can be adjusted.
Even if the flow velocity of the cleaning device 4 is increased, the cleaning device main body 4 can be prevented from flowing by increasing the rotation speed of the water absorption fan 13.

Next, when the drive wheels 5 are driven while the water-absorption fan 13 is being driven and the cleaning brush 6 is rotated, the cleaning brush 6 is rotated to remove the deposits on the bottom wall, and the distance detector 27 sets it in advance. The cleaning device main body 4 travels in the forward direction while keeping a constant distance from the water channel wall surface (side wall) 2 that is formed, and the cable 21 is paid out from the cable drum 22 as the cleaning device main body 4 travels. It

When the cleaning of a certain section is completed, the drive wheels 5 are driven by changing the direction of the drive wheels 5 so as to follow the width direction of the cleaning device body 4, and the cleaning device body 4 is moved in the width direction, for example. Then, the distance between the cleaning device main body 4 and the water channel wall surface 2 is changed, and the drive wheels 5 are returned so as to be along the length direction of the cleaning device main body 4 again.
3, the driving wheel 5, the cleaning brush 6 is driven, and the cleaning brush 6
While adhering matter 3 is removed by this, it is made to run in the backward direction.
The cleaning of the bottom wall is completed by repeating such an operation.

When cleaning a side wall or the like standing upright from the bottom wall of the water channel 1, the drive of the water absorption fan 13 is stopped (the water absorption fan may be rotated in the reverse direction) and the cleaning device body 4 is floated to some extent. One hydraulic cylinder device 41
By driving (42), one weight 37 (3
8) Turn up.

Then, the center of gravity of the cleaning device main body 4 moves and the drive wheels 5 face to the side.
The water absorption fan 13 is driven again to press the drive wheel 5 against the side wall, and similarly to the above, the drive wheel 5 and the cleaning brush 6 are driven so that the cleaning brush 6 removes the foreign matter 3 in the forward direction. When the vehicle travels and the cleaning of the predetermined section is completed, the drive wheels 5 are changed along the width direction of the cleaning device body 4 (the height direction of the side wall), and the cleaning device body 4 is moved in the width direction,
The cleaning device body 4 is moved in the backward direction to clean the side wall.

When the water channel 1 is a pipe having a circular cross section,
The skirt member 10 in which the support plate 7a is curved along the waterway wall surface 2 and the lower opening 11 is along the waterway wall surface 2
To drive wheel 5, water absorption fan 13,
By driving the cleaning brush 6, the water channel wall surface 2 can be cleaned.

For example, when the upper part of the water channel 1 is cleaned, the weights 37 and 38 are moved to the upper surface side of the cleaning device body 4 by contracting the hydraulic cylinder devices 41 and 42 as shown by the solid line in FIG. Since the cleaning device body 4 is rotated, the top and bottom of the cleaning device main body 4 are reversed, and the drive wheels 5 are in the inverted position B positioned above.
The water suction fan 13 and the cleaning brush 6 can be driven to clean the water channel wall surface 2.

As described above, according to the embodiment of the present invention, by driving the water absorption fan 13, the water 12 is absorbed from the lower opening 11 of the skirt member 10 and discharged to the upper side of the cleaning device main body 4, and at that time, Since the reaction force is applied to the drive wheels 5 and the drive wheels 5 are pressed against the water channel wall surface 2 with a predetermined pressure, even a cleaning device that is lighter in weight than the conventional one does not flow into the flow and moves in all directions. Can be installed on the wall 2 of the waterway.

Further, even if one cleaning device is used, the support plate 7a is curved so as to be along the water channel wall surface 2 and the skirt member 10 whose lower opening 11 is along the water channel wall surface 2 is replaced. It is convenient because it can be adapted to the water channel 1 having a shape.

Further, since only one cable 21 is connected to the cleaning device main body 4 and the cleaning device is smaller and lighter than the conventional one, devices for carrying in and out the cleaning device are provided. However, the cleaning device is simpler than the conventional one, and the cleaning device is easy to handle.

When the cleaning device according to the embodiment of the present invention is used in still water, the swimming thruster 15 is driven to move the cleaning device main body 4 in an arbitrary direction to clean the water channel wall surface 2. I can.

FIG. 7 shows another embodiment of the cleaning brush 6 used when the waterway wall surface 2 is lined. This is one in which a hammer member 30 with chamfered corners is attached to the tip of a brush material 29, and the cleaning brush 6
The attachment 3 is tapped and removed by the hammer member 30 by the rotation of. According to this embodiment, since only the adhering matter 3 is scraped off and removed by the hammer member 30 having the chamfered corners, it is possible to prevent the lining from being damaged.

[0038]

As is apparent from the above description, according to the present invention, the water is absorbed from the bottom opening of the cleaning device by driving the water absorbing fan and is discharged above the cleaning device main body, and the reaction force at that time is generated. The driving wheel can be loaded on the waterway wall with a predetermined pressure by being loaded on the driving wheel. Therefore, even a cleaning device that is lighter in weight than before can be installed on the waterway wall surface under running water. Since the size of the cleaning device can be reduced and the size of the cleaning device can be reduced, the mechanical device for loading and unloading the cleaning device into the water channel can be simplified.

[Brief description of drawings]

FIG. 1 is an overall side view of a cleaning device showing an embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view showing the same usage state.

FIG. 5 is an enlarged view of the cleaning brush.

FIG. 6 is a front view showing a usage state when the cleaning device of the present invention is used in a water channel having a circular cross section.

FIG. 7 is an enlarged view showing another embodiment of the cleaning brush.

FIG. 8 is a front view showing a normal posture in which drive wheels are located below.

FIG. 9 is a side view showing a reverse posture in which the drive wheels are also upward.

FIG. 10 is a front view showing a reverse posture in which the drive wheels are also upward.

[Explanation of symbols]

 1 Water Channel 2 Water Channel Wall 3 Adhesion 4 Cleaning Device Main Body 5 Drive Wheel 6 Cleaning Brush 7 Supporting Member 8 Support Shaft 9 Pressing Device 10 Skirt Member 11 Lower Opening 12 Water 13 Water Absorption Fan 15 Swimming Thruster 27 Distance Detector 35 Attitude Change Device 37 Weight 38 Weight 41 Hydraulic cylinder device 42 Hydraulic cylinder device A Normal posture B Reversed posture

Front page continuation (72) Inventor Kazushi Yamada 5-3-28 Nishikujo, Konohana-ku, Osaka City, Osaka Prefecture Hitachi Shipbuilding Co., Ltd. (72) Takashi Tateishi 5-3-28 Nishijojo, Konohana-ku, Osaka City, Osaka No. Hitachi Shipbuilding Co., Ltd. (72) Inventor Koichi Uchida 5-3 28 Nishikujo, Konohana-ku, Osaka City, Osaka Prefecture No. 28 Hitachi Shipbuilding Co., Ltd. (72) Manabu Miura 5-3, Nishikujo, Konohana-ku, Osaka City, Osaka Prefecture No. 28 Hitachi Shipbuilding Co., Ltd. (72) Inventor Minoru Hyuga 5-3-3, Nishikujo 5-chome, Konohana-ku, Osaka City, Osaka Prefecture Hitachi Shipbuilding Co., Ltd.

Claims (3)

[Claims] 1. An in-stream running water cleaning device for cleaning and removing deposits on a wall surface of running water in running water, wherein the cleaning device main body having drive wheels at the bottom is rotated via a support shaft to a predetermined position. A cleaning brush is freely attached, and a pressing device for pressing the wheel against the wall surface of the water channel in running water with a predetermined pressure is provided, and the pressing device is provided from an opening formed in the bottom surface of the cleaning device main body. For a water passage, which is composed of a water absorption passage for guiding water toward the upper part of the water, and a water absorption fan arranged in the middle of the water absorption passage for absorbing water from the opening at a predetermined speed. Cleaning device in running water. 2. The cleaning device main body according to claim 1, wherein the cleaning device main body is provided with a distance detector for detecting a distance between the cleaning device main body and the side wall of the water channel. 3. The in-stream cleaning device for a waterway according to claim 1, wherein the cleaning brush is attached to the main body of the cleaning apparatus via an attachment member so as to follow the shape of the wall surface of the waterway.