JPS63137788A - Method of cleaning inside of pipe - 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 [Field of Industrial Application] The present invention relates to a method for cleaning inside a pipe. More specifically, the present invention relates to a method for cleaning inside a pipe that makes it possible to extend a biological recovery hose.

[Prior art]

For example, when an unmanned cleaning device cleans the inside of a water intake pipe at a power plant, etc., the organisms removed by the cleaning are discharged to the ground through a collection hose, but if the unmanned cleaning machine runs through the pipe while dragging the collection hose, Not only is it impossible to extend the recovery hose due to the increased resistance at the bend, but there is a risk that the recovery hose may be damaged.

[Purpose of the invention]

The present invention has been made to solve the conventional problems as described above, and aims to facilitate hose extension and prevent damage to the recovery hose.

[Structure of the invention]

The pipe cleaning method of the present invention, which can achieve the above object, involves laying the hoses in the pipe while sequentially paying out the hoses from the hose wheel at the rear end while the pipe cleaning device is moving forward; This system is characterized by sequentially winding up the laid hose starting from the hose car at the front.

The above-mentioned pipe cleaning device may be any device that can clean the pipe interior, and is not limited to the cleaning device of the embodiment. Further, the hose wheel is not limited to the one in the embodiment, as long as it is capable of winding up and unwinding the hose.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS A pipe cleaning device used for carrying out the method of the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory diagram showing the state of cleaning inside a large-diameter pipe.
A cleaning cart 1 for cleaning the inside of a large-diameter pipe advances inside a large-diameter pipe 5 while pulling a recovery pump truck 3 and several hose laying vehicles 4. The cleaning trolley 1 has a cleaning unit 2 at the front thereof.
The inside of the large-diameter pipe 5 is cleaned by the rotation of the cleaning unit 2. The cleaned and removed organisms are discharged to the ground through the manhole 6 by the collection pump truck 3 and the hose laying truck 4.

As shown in FIG. 2, the cleaning trolley 1 has four
Leg running devices 12 are arranged radially. Each traveling device 12 has front and rear drive wheels 13.1 as shown in FIG.
4, a plurality of wheels 15, and an endless rail 16 extending between these wheels. The drive wheels 13, 14
Normally, one of the two is free-wheeled, so that it can be operated alternately in an emergency.

Further, each traveling device 12 is connected to the main body 11 via a suspension device 17.
is attached to. The suspension device 17 includes a pair of guide portions 18 attached to the main body 11 and a cylindrical sliding portion 19 attached to the frame 20 of the traveling device 12 and fitted into the guide portions 18. There is.

Further, air cylinders 21 are disposed before and after the suspension device 17, respectively, and these air cylinders 21
This makes it possible to change the inclination angle of each traveling device 12 and adjust the extent to which the traveling device 12 projects.

A cleaning unit 2 is rotatably attached to the front part of the cleaning cart main body 11. This cleaning unit 2
As shown in the figure, a bracket stand 23 is rotatably attached to the cleaning cart main body 11 via a shaft 22, and an arm 25 is pivotally supported by a bracket 24 fixed to the bracket stand 23. A pair of gas springs 26 are attached to this arm 25, and a drive wheel 27 that is actively driven is attached to each gas spring 26. A cylindrical brush 29 that actively rotates on the frame 28 of this drive wheel 27
is attached, but the pressure on the pipe wall is performed by a pneumatic cylinder 30 attached to the arm 25. At the front of this cylindrical brush 29, a cutter 31 for roughly removing living things is provided on the shaft of the cylindrical brush 29. Further, the angle of inclination of the arm 25 is controlled by two hydraulic cylinders 32 attached to the peripheral surface of the bracket stand 23.

When the driving wheel 27 and the cylindrical brush 29 are rotated, the arm 25 rotates as the driving wheel 27 travels along the inner wall surface of the large-diameter pipe 5, and the cylindrical brush 29 following the driving wheel 27 causes the pipe to pass through the pipe. Organisms adhering to the inner wall surface of No. 5 are removed.

The removed organisms are discharged to the ground by a collection pump vehicle 3 and a hose laying vehicle 4, which will be described later.

The recovery pump car 3 has a main body 80 as shown in FIG.
It has four wheels 84 arranged radially from the base.

A member 85 supporting each wheel 84 is equipped with a wheel expansion/contraction device 86 having a pressing force such as an air cylinder or a spring. The wheels 84 are connected to the main body 8 as shown in FIG.
They are placed before and after 0. The main body 80 is constructed by assembling tubular members 81, 82, 83 into a rectangular parallelepiped shape. A suction port delivery device 90 is attached via a vibrator 89 to an inlet 88 of a pump 87 installed in the main body 8o. This suction port sending device 9
0 is composed of an outer tube 91, an inner tube 92 slidably provided within the outer tube 91, and a hydraulic cylinder 93 with one end attached to the outer tube 91 and the other end attached to the inner tube 92. ing. This hydraulic cylinder 93 expands and contracts the inner tube 92 . In addition, the inner pipe 92 has a swivel joint 9.
A suction tube 95 is attached via 4. The suction port 96 of this suction tube 95 faces the direction of the tube wall 5A,
As shown in FIG. 9, another suction port 97 is connected to the recovery pump car 3
It is located towards the front of the

The suction tube 95 can be oriented left and right as shown in FIG. Further, the hose laying vehicle 4 is connected to an outlet 98 of the pump 87 via a connecting vibrator 99.

As shown in FIG. 6, the hose laying vehicle 4 has four wheels 114 arranged radially from a main body 110.

The member 115 that supports each wheel 114 includes an air cylinder,
Alternatively, a wheel telescoping device 116 having a pressing force such as a spring is provided. The wheels 114 are arranged at the front and rear of the main body 110, as shown in FIG. The main body 110
is constructed by assembling tubular members 111, 112, and 113 into a rectangular parallelepiped shape. A hose winder 11 is mounted on the main body 110 and rotated by a winder drive device 117.
8 is installed. One end of the hose 119 wound around the hose winder 118 is connected to a pipe 120 provided at the center of the hose winder 118 . A connecting pipe 12 is connected to this pipe 120 via a swivel joint 121.
2 is installed.

This connecting pipe 122 is connected to the above-mentioned connecting pipe 99 or the hose 119 of another hose laying vehicle 4 .

As shown in FIG. 1, a cleaning truck 1, a recovery pump truck 3, and several hose laying trucks 4 are connected in this order by a connecting device (not shown), and when the cleaning truck 1 starts, the recovery pump The car 3 and each hose laying car 4 are towed by the cleaning cart 1 and move forward.

On the other hand, since the hose 119 is let out from the rearmost hose truck 4 at the same time as the cleaning cart 1 starts, the hose 119 let out from the rearmost hose truck 4 is laid inside the pipe 5. When all the hoses 119 of the rearmost hose truck 4 are laid, the connection between the rearmost hose truck 4 and the second hose truck 4 from the rear is released, and the second hose truck 4 A hose 119 is laid within the pipe 5 in the same way as the hose wheel 4 at the rear end.

When the cleaning inside the pipe 5 is completed and the cleaning cart 1 returns, the hose winder 118 of the hose cart 4 at the front rotates at the same time as the cleaning cart 1 retreats, and the hose installed inside the pipe 5 is rotated. 1
19 is wound up. When winding of the hose on the frontmost hose wheel 4 is completed, winding of the hose 119 is started by the second hose wheel 4 from the front. Thus, all the hoses 119 by the hose cars 4.

When the winding is completed, it returns to the position of the manhole 6.

FIGS. 8(a) and 8(bl) show another embodiment, in which the hose 119a is moved from the hose winder 131 of the support vehicle 130 on the ground in synchronization with the towing speed for the heavy horizontal section. Regarding the feeding and bending pipe section 5X, even if the hose 119 is laid by the above-mentioned hose laying vehicle 4, the resistance due to towing of the hoses 119 and 119a can be eliminated, making it possible to completely extend the hose and preventing damage to the hose. can.

〔Effect of the invention〕

As described above, the present invention allows the hoses to be laid in the pipe by sequentially paying out the hoses from the rearmost hose wheel while the pipe cleaning device is moving forward, and to lay the hoses in the pipe while the pipe cleaning device is retracting. Since the hose is wound up sequentially starting from the frontmost hose wheel, the hose can be completely extended and damage to the hose can be prevented.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the implementation of the pipe cleaning method according to the present invention, Fig. 2 is a front view of a cleaning cart with a cleaning unit, Fig. 3 is a side view of the cleaning cart with a cleaning unit, and Fig. 4 is a diagram of a recovery pump car. Front view, Figure 5 is a side view of the recovery pump vehicle, Figure 6 is a front view of the hose laying vehicle, Figure 7 is a side view of the hose laying vehicle, and Figures 8 (a) and (b) are other implementations. It is an explanatory view showing an aspect. 1... Pipe cleaning device, 4... Hose truck, 5... Pipe, 119... Hose.

Claims (1)

[Claims] While the pipe cleaning device is moving forward, starting with the last hose truck,
A method for cleaning an inside of a pipe, characterized in that the hose is laid inside the pipe while being fed out, and while the inside of the pipe cleaning device is retracting, the hose laid inside the pipe is sequentially wound up starting from the hose car at the forefront.