KR102540024B1 - Old water pipe cleaning system using water jet - Google Patents

Abstract

The present invention relates to a system for cleaning old water supply pipes using a water jet, which is when washing water is supplied through a washing water line, a wheel is rotated by the pressure of the washing water, and washing water is sprayed through a washing nozzle while a pipe bogie moves along a water supply pipe. The main valve 10, the branch module 20, the water discharge module 30, the gate module 40, the washing module 50, the filtration so that the entire inner circumferential section of the water supply pipe is directly exposed to the washing water to improve washing efficiency. Module 60, the compressor module 70, including the filtered water line 80 as a main component.

Description

Old water pipe cleaning system using water jet}

The present invention relates to a system for cleaning old water supply pipes using a water jet, and more particularly, when washing water is supplied through a washing water line, a wheel is rotated by the pressure of the washing water, and the washing water passes through a washing nozzle while a pipe bogie moves along the water supply pipe. The present invention relates to a water service old pipe cleaning system using a water jet capable of improving cleaning efficiency by spraying the entire inner circumferential surface of a water supply pipe directly to the washing water.

Domestic tap water piping is a situation where it is necessary to clean or improve the pipe line with an old pipe line of more than 30 years, and even if the tap water supplied from the water source is clean, it is contaminated by the aging of the pipe in relation to the water pipe connected to each home. The situation is.

In particular, since there are various water-soluble and non-water-soluble components contained in the fluid flowing inside the pipe as well as deterioration due to corrosion within the pipe, it is attached to the inner surface of the pipe in the form of scale or slime to increase the efficiency of the flow rate flowing inside the pipe. Flow is becoming difficult.

Accordingly, in Patent Registration No. 10-2320989 disclosed in the prior art, a saddle branch installed in the water supply pipe upstream of the first water valve; a first allocator pipe installed in the water supply pipe downstream of the first water valve; a washing pipe installed into the water supply pipe through the first spermatic cord; a rotating water jet device installed at the front end of the washing pipe; a water pipe connecting the washing pipe and the saddle branch to supply tap water to the washing pipe; a compressed air supply pipe connected to the washing pipe and supplying compressed air generated by the compressed air generator to the washing pipe; a second allocator pipe installed in the water supply pipe adjacent to the upstream side of the second water valve installed at a certain distance downstream from the first water valve; and a microfiltration device for filtering the tap water supplied through the drain pipe connected to the second spermatic drainage pipe, wherein when the high-pressure compressed air generated by the compressed air generator is supplied to the washing pipe, it is supplied through the water pipe. A technique of washing the inner surface of the water supply pipe by rotating and spraying tap water together with the compressed air at high pressure through the rotary water jet device has been previously proposed.

However, the prior art is to remove the scale formed on the inner surface of the water supply pipe by spraying tap water and high-pressure compressed air, but since the rotating nozzle rotates at a stationary position, some scale is formed in the area adjacent to the rotating nozzle. However, there was a problem that the scale in other areas was virtually impossible to remove.

KR 10-2320989 B1 (2021.10.28.)

Accordingly, the present invention has been conceived to solve the above problems, and when washing water is supplied through the washing water line, the washing water is sprayed through the washing nozzle while the water pipe bogie moves along the water supply pipe as the wheel is rotated by the washing water pressure. It is an object of the present invention to provide a water service aging pipe cleaning system using a water jet capable of improving cleaning efficiency while directly exposing the entire inner circumferential surface of the water supply pipe to the washing water.

In order to achieve this object, the features of the present invention are,

A main valve 10 installed inside the manhole 2 spaced apart in the longitudinal direction of the water supply pipe 1 and provided to open and close fluid movement through the water supply pipe 1;

A branch module 20 installed on a water supply pipe 1 adjacent to any one of the main valves 10 and having a branch line 22 formed in communication with the inside of the water supply pipe 1 to discharge internal fluid;

A water withdrawal module 30 installed on the water supply pipe 1 adjacent to the other one of the main valves 10 and having a water discharge line 32 formed in communication with the inside of the water supply pipe 1 to discharge internal fluid;

A gate module 40 installed in the water supply pipe 1 corresponding to the main valve 10 and formed with an opening 42 open upward to communicate with the inside of the water supply pipe 1;

a washing module 50 introduced into the water supply pipe 1 through the opening 42 of the gate module 40 and having a washing water line 51 connected to the branch line 22 to output washing water;

a filtration module 60 provided to filter the fluid output into the water supply pipe 1 through the washing module 50 by sucking it through the water discharge line 32;

a compressor module 70 connected to the washing water line 51 and provided to supply compressed air through an air line 72 that is opened and closed by a valve; and

A filtered water line 80 supplying the filtered water filtered in the filtration module 60 to the washing water line 51 and opened and closed by a valve;

With the main valve 10 closed and the section of the water supply pipe 1 corresponding to the adjacent main valve 10 closed, the branch line 22 is turned on to output washing water to the washing water line 51. to wash the inner circumferential surface of the water supply pipe 1, recover the washing water used for washing the water supply pipe 1 through the water discharge line 32, and perform a washing process of filtering in the filtration module 60,

During the washing process, the air line 72 is further turned on to inject compressed air together with the washing water,

It is characterized in that it is provided to operate the washing water in a circulation manner by operating the branch line 22 off and operating the filtered water line 80 on after the set time has elapsed after starting the washing process.

At this time, the washing module 50,

A main body that is introduced into the water supply pipe 1 through the opening 42 of the gate module 40, has a cover frame 52a installed thereon to be fastened to the opening 42, and has a compartment 52b formed thereunder. frame 52;

A reel 53 installed on the body frame 52, rotated by a driving unit, and around which the washing water line 51 is wound;

A pipe carriage 54 that is retractably accommodated in the compartment 52b of the body frame 52 and connected to the washing water line 51;

A wheel 55 installed under the pipeline carriage 54 and provided with a hydraulic motor 55a to be rotated by the pressure of the washing water supplied through the washing water line 51;

A washing nozzle 56 installed on the outer circumferential surface of the pipeline carriage 54 and outputting washing water supplied through the washing water line 51;

A draw bar 57 protruding in the transverse direction from the compartment 52b;

It includes a pull hole 58 that penetrates the pipe carriage 54 corresponding to the draw rod 57 and is fitted and coupled to the draw rod 57 in the transverse direction,

After the body frame 52 is put into the water supply pipe 1 through the opening 42 of the gate module 40 and the washing water is supplied through the washing water line 51, the washing water pressure causes the wheel to rotate and the main body It is characterized in that the washing water is sprayed through the washing nozzle 56 while the frame 52 moves along the water supply pipe 1 to wash the inner circumferential surface of the water supply pipe 1.

In addition, a sensor 52c for detecting the inner bottom of the water supply pipe 1 is provided on the bottom surface of the body frame 52,

The traction hole 58 is formed in a long hole shape in which the longitudinal cross-sectional shape extends in the longitudinal direction,

The lower surface of the wheel 55 installed on the pipeline carriage 54 in a state where the traction hole 58 is pulled by the draw bar 57 is located lower than the lower surface of the body frame 52,

After the wheel 55 is seated on the inner floor of the water pipe 1 during the downward transfer of the body frame 52 into the water pipe 1 through the opening 42 of the gate module 40, the sensor ( 52c) moves to a position where the inner bottom of the water supply pipe 1 is sensed, the drawbar 57 moves downward through the pull hole 58, and the upper surface of the draw rod 57 and the inner circumferential surface of the pull hole 58 do not come into contact. It is characterized in that it is provided to be spaced apart in the state.

In addition, the conduit truck 54,

Front and rear bogie frames 54a and 54b spaced apart from each other and having wheels 55 and washing nozzles 56 installed thereon;

A scissor arm 54c that retractably connects the front and rear bogie frames 54a and 54b,

An elastic body 54d installed between the front and rear bogie frames 54a and 54b to provide an operating force in a direction in which the front and rear bogie frames 54a and 54b are widened;

A rod hole 54e passing through the center of the rear bogie frame 54b in the transverse direction so that the washing water line 51 passes therethrough;

It includes a branch board 54f installed on the front bogie frame 54a and distributing and supplying the washing water supplied through the washing water line 51 to the nozzle 65 and the hydraulic motor 55a,

When the washing water line 51 is pulled by the operating force of the reel 53 in the winding direction, the elastic body 54d is compressed and the gap between the front and rear bogie frames 54a and 54b is reduced and waits,

After the body frame 52 is put into the water supply pipe 1 through the opening 42 of the gate module 40, and the reel 53 is released and the washing water is supplied through the washing water line 51, the elastic body Washing water sprayed through the washing nozzle 56 while moving along the water supply pipe 1 by the rotational force of the wheel 55 with the distance between the front and rear bogie frames 54a and 54b extended by (54d) It is characterized in that the inner circumferential surface of the water supply pipe 1 is provided to be washed by.

In addition, the washing nozzle 56 installed on either side of the front and rear bogie frames 54a and 54b is installed at an inclined angle to generate propulsive force in the running direction of the pipe bogie 54.

In addition, it is characterized in that it is provided to sterilize and disinfect the inner circumferential surface of the water supply pipe 1 by installing ultraviolet lamps 56a on the front and rear bogie frames 54a and 54b.

According to the above configuration and operation, in the present invention, when washing water is supplied through the washing water line, the washing water is sprayed through the washing nozzle while the pipe bogie moves along the water supply pipe as the wheel is rotated by the washing water pressure, and the inner circumferential surface of the water supply pipe As it is directly exposed to washing water, there is an effect of improving washing efficiency.

1 is a block diagram showing the overall configuration of a water service old pipe cleaning system using a water jet according to an embodiment of the present invention.
2 to 3 are configuration diagrams showing an operating state of a water service old pipe cleaning system using a water jet according to an embodiment of the present invention.
Figure 4 is a block diagram showing a cleaning module of the water service old pipe cleaning system using a water jet according to an embodiment of the present invention.
5 is a block diagram showing an installation state of a washing module of a waterworks old pipe washing system using a water jet according to an embodiment of the present invention.
6 is a block diagram showing an operating state of a cleaning module of a waterworks old pipe cleaning system using a water jet according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in the description of the present invention, if it is determined that the related known function may unnecessarily obscure the subject matter of the present invention as an obvious matter to those skilled in the art, the detailed description thereof will be omitted.

1 is a block diagram showing the overall configuration of a water supply aging pipe cleaning system using a water jet according to an embodiment of the present invention, and FIGS. 2 and 3 show an operating state of the water supply aging pipe cleaning system using a water jet according to an embodiment of the present invention. Fig. 4 is a block diagram showing a cleaning module of a waterworks old pipe cleaning system using a waterjet according to an embodiment of the present invention, and Figure 5 is a waterworks old pipe cleaning system using a waterjet according to an embodiment of the present invention. 6 is a configuration diagram showing an installed state of the washing module, and FIG. 6 is a block diagram showing an operating state of the washing module of the old water pipe cleaning system using a water jet according to an embodiment of the present invention.

The present invention relates to a system for cleaning old water supply pipes using a water jet, which is when washing water is supplied through a washing water line, a wheel is rotated by the pressure of the washing water, and washing water is sprayed through a washing nozzle while a pipe bogie moves along a water supply pipe. The main valve 10, the branch module 20, the water discharge module 30, the gate module 40, the washing module 50, the filtration so that the entire inner circumferential section of the water supply pipe is directly exposed to the washing water to improve washing efficiency. Module 60, the compressor module 70, including the filtered water line 80 as a main component.

The main valve 10 according to the present invention is installed inside the manhole 2 spaced apart in the longitudinal direction of the water supply pipe 1, and is provided to open and close fluid movement through the water supply pipe 1.

The main valve 10 is manually operated by a lever or automatically operated by a driving source.

Then, when the two adjacent main valves 10 are closed, the flow of fluid to the water supply pipe 1 in the section between the main valves 10 is stopped.

In addition, the branch module 20 according to the present invention is installed on the water supply pipe 1 adjacent to any one of the main valves 10, and communicates with the inside of the water supply pipe 1 to discharge internal fluid. (22) is formed.

The branch module 20 is installed in the water supply pipe 1 on the opposite side of the water supply pipe 1 where the fluid flow is blocked by the main valve 10, and a branch line 22 is installed so that the internal fluid can be used as washing water.

In addition, the water withdrawal module 30 according to the present invention is installed on the water supply pipe 1 adjacent to the other one of the main valves 10 and communicates with the inside of the water supply pipe 1 to discharge the internal fluid. (32) is formed.

The water withdrawal module 30 is installed in the section of the water supply pipe 1 where the fluid flow is blocked by the main valve 10, and the waste washing water used for washing the inner circumferential surface of the water supply pipe 1 through the washing module 50 described later. It is provided to discharge.

In addition, the gate module 40 according to the present invention is installed in the water supply pipe 1 corresponding between the main valves 10, and has an opening 42 that is open upward and communicates with the inside of the water supply pipe 1 is formed

The gate module 40 provides a passage through which the cleaning module 50 to be described later is introduced into the water supply pipe 1.

In addition, the washing module 50 according to the present invention is introduced into the water supply pipe 1 through the opening 42 of the gate module 40 and is connected to the branch line 22 to output washing water to the washing water line ( 51) is formed.

4, at this time, the cleaning module 50 is put into the water supply pipe 1 through the opening 42 of the gate module 40, and a cover frame 52a is installed on the top so as to be fastened to the opening 42. A body frame 52 in which a compartment 52b is formed in the lower portion, a reel 53 installed in the body frame 52, rotated by a driving unit, and wound with a washing water line 51, and a main body A conduit cart 54 retractably accommodated in the compartment 52b of the frame 52 and connected to the washing water line 51, and washing water installed below the conduit cart 54 and supplied through the washing water line 51 A wheel 55 provided with a hydraulic motor 55a to be rotated by pressure, a washing nozzle 56 installed on the outer circumferential surface of the pipeline carriage 54 and outputting washing water supplied through the washing water line 51, A pull hole provided to penetrate the draw bar 57 protruding in the transverse direction from the compartment 52b and the pipeline carriage 54 corresponding to the draw bar 57 so as to be fitted and coupled to the draw bar 57 in the transverse direction (58).

Accordingly, when the body frame 52 is put into the water supply pipe 1 through the opening 42 of the gate module 40 and the washing water is supplied through the washing water line 51, the washing water pressure causes the wheel to rotate. While the pipeline carriage 54 moves along the water supply pipe 1, washing water is sprayed through the washing nozzle 56, and the entire inner circumferential section of the water supply pipe 1 is uniformly exposed to the washing water (water jet) to improve the washing efficiency. There is an advantage.

In addition, a sensor 52c for detecting the inner bottom of the water supply pipe 1 is provided on the bottom surface of the body frame 52, and the traction hole 58 is formed in a long hole shape extending in the longitudinal direction.

In addition, the lower surface of the wheel 55 installed on the pipeline carriage 54 in a state where the traction hole 58 is pulled by the draw bar 57 is located lower than the lower surface of the body frame 52 .

As shown in FIG. 5, the wheel 55 is seated on the inner floor of the water supply pipe 1 during the downward transfer of the body frame 52 into the water supply pipe 1 through the opening 42 of the gate module 40. Then, when the sensor 52c moves to a position where the inner bottom of the water supply pipe 1 is sensed, the drawbar 57 is moved downward along the pull hole 58, and the upper surface of the draw rod 57 and the pull hole 58 ) As the inner circumferential surface is provided to be spaced apart in a non-contact state, a phenomenon in which the traction hole 58 rubs against the traction bar 57 when the pipe trolley 54 moves is prevented.

In addition, the conduit bogie 54 has front and rear bogie frames 54a and 54b, front and rear bogie frames 54a and 54b, which are spaced apart and have wheels 55 and washing nozzles 56 installed, respectively. ) is installed between the scissor arm 54c that retractably connects the front and rear bogie frames 54a and 54b, and provides an operating force in the direction in which the front and rear bogie frames 54a and 54b diverge. The elastic body 54d, the rod hole 54e through which the washing water line 51 penetrates through the center of the rear bogie frame 54b in the transverse direction, and the washing water line 51 installed in the front bogie frame 54a and a branch board 54f for distributing and supplying the washing water supplied through the nozzle 65 and the hydraulic motor 55a.

Looking at the operation state of the conduit carriage 54, when the washing water line 51 is pulled by the operating force in the winding direction of the reel 53 as shown in FIG. Waiting with the distance between the truck frames 54a and 54b reduced,

Subsequently, as shown in FIGS. 6 (b) to 6 (c), after the body frame 52 is introduced into the water supply pipe 1 through the opening 42 of the gate module 40, the reel 53 is unwound. When washing water is supplied through the washing water line 51, the water supply pipe 1 is opened by the rotational force of the wheel 55 in a state in which the distance between the front and rear bogie frames 54a and 54b is expanded by the elastic body 54d. It is provided so that the inner circumferential surface of the water supply pipe 1 is washed by the washing water sprayed through the washing nozzle 56 while riding and moving.

As described above, by the expansion and contraction control structure of the front and rear bogie frames 54a and 54b, it is easy to put into the water supply pipe 1 through the narrow opening 42, and in particular, the front and rear bogie frames 54a and 54b ), stability of movement is ensured as the conduit bogie 54 is transported in an extended state, and even if washing water is sprayed at high pressure through the washing nozzle 56 during movement, the conduit bogie 54 is prevented from overturning.

In addition, the washing nozzle 56 installed on either side of the front and rear bogie frames 54a and 54b is installed at an inclined angle to generate propulsive force in the running direction of the pipe bogie 54.

Accordingly, even if the inner circumferential surface of the water supply pipe 1 is irregular or installed at an inclined angle, the rotational force of the wheel 55 and the driving force of the washing water by the washing nozzle 56 act in combination, thereby stably moving.

In addition, UV lamps 56a are installed on the front and rear bogie frames 54a and 54b to sterilize and disinfect the inner circumferential surface of the water supply pipe 1.

In addition, the filtration module 60 according to the present invention is provided to suction and filter the fluid output into the water supply pipe 1 through the washing module 50 through the water discharge line 32 .

The filtration module 60 is provided to filter foreign substances harmful to the human body including heavy metals contained in tap water as well as foreign substances generated during the washing process.

In addition, the compressor module 70 according to the present invention is provided to supply compressed air through an air line 72 connected to the washing water line 51 and opened and closed by a valve.

The compressor module 70 mixes and injects the compressed air together with the washing water, thereby increasing the spraying pressure of the washing water, thereby improving washing efficiency and saving washing water.

In addition, the filtered water line 80 according to the present invention supplies the filtered water filtered by the filter module 60 to the washing water line 51 and is opened and closed by a valve.

The filtered water line 80 is configured to reuse the waste washing water in a filtered state, and one end is installed in the filtration module 60 and the other end is connected to the washing water line 51.

Looking at the operating state, as shown in FIG. 2, the main valve 10 is locked and the section of the water supply pipe 1 corresponding to the adjacent main valve 10 is closed, and the branch line 22 is turned on to wash water Washing process of washing the inner circumferential surface of the water supply pipe 1 by outputting the washing water through the line 51, recovering the washing water used for washing the water supply pipe 1 through the water discharge line 32, and filtering it in the filtration module 60 It is provided to perform, and is provided to inject compressed air together with the washing water by additionally turning on the air line 72 during the washing process.

And, as shown in FIG. 3, after the washing process starts and the set time elapses, the branch line 22 is turned off and the filtered water line 80 is turned on to operate the washing water in a circulation manner, so that the waste washing water is recycled. This has the advantage of saving new washing water.

As described above, the most preferred embodiment of the present invention has been described in the detailed description of the present invention, but various modifications may be made within a range that does not depart from the technical scope of the present invention. Therefore, the scope of protection of the present invention should not be limited to the above embodiments, but the scope of protection should be recognized from the techniques of the claims to be described later and from these techniques to equivalent technical means.

10: main valve 20: branch module
30: water withdrawal module 40: gate module
50: washing module 60: filtration module
70: compressor module 80: filtered water line

Claims (6)

A main valve 10 installed inside the manhole 2 spaced apart in the longitudinal direction of the water supply pipe 1 and provided to open and close fluid movement through the water supply pipe 1; A branch module 20 installed on a water supply pipe 1 adjacent to any one of the main valves 10 and having a branch line 22 formed in communication with the inside of the water supply pipe 1 to discharge internal fluid; A water withdrawal module 30 installed on the water supply pipe 1 adjacent to the other one of the main valves 10 and having a water discharge line 32 formed in communication with the inside of the water supply pipe 1 to discharge internal fluid; A gate module 40 installed in the water supply pipe 1 corresponding to the main valve 10 and formed with an opening 42 open upward to communicate with the inside of the water supply pipe 1; a washing module 50 introduced into the water supply pipe 1 through the opening 42 of the gate module 40 and having a washing water line 51 connected to the branch line 22 to output washing water; a filtration module 60 provided to filter the fluid output into the water supply pipe 1 through the washing module 50 by sucking it through the water discharge line 32; a compressor module 70 connected to the washing water line 51 and provided to supply compressed air through an air line 72 that is opened and closed by a valve; And a filtered water line 80 supplying the filtered water filtered in the filtration module 60 to the washing water line 51 and opened and closed by a valve,
With the main valve 10 closed and the section of the water supply pipe 1 corresponding to the adjacent main valve 10 closed, the branch line 22 is turned on to output washing water to the washing water line 51. to wash the inner circumferential surface of the water supply pipe 1, recover the washing water used for washing the water supply pipe 1 through the water discharge line 32, and perform a washing process of filtering in the filtration module 60,
During the washing process, the air line 72 is further turned on to inject compressed air together with the washing water,
After the washing process starts and the set time elapses, the branch line 22 is turned off and the filtered water line 80 is turned on to operate the washing water in a circulation manner,
The washing module 50 is introduced into the water supply pipe 1 through the opening 42 of the gate module 40, and a cover frame 52a is installed on the top so as to be fastened to the opening 42, and on the bottom The body frame 52 in which the compartment 52b is formed, the reel 53 installed in the body frame 52, rotated by the driving unit, and the washing water line 51 is wound, and the body frame 52 compartment ( 52b) to be accommodated in a withdrawable manner and connected to the washing water line 51, and the pipeline carriage 54 installed below the pipeline carriage 54 and rotated by the pressure of the washing water supplied through the washing water line 51. A wheel 55 equipped with a hydraulic motor 55a, a washing nozzle 56 installed on the outer circumferential surface of the pipeline carriage 54 and outputting washing water supplied through the washing water line 51, and a compartment 52b transverse to It includes a draw bar 57 protruding in the direction, and a pull hole 58 provided to penetrate the pipe carriage 54 corresponding to the draw bar 57 and to be fitted and coupled to the draw bar 57 in the transverse direction, , After the body frame 52 is put into the water supply pipe 1 through the opening 42 of the gate module 40, and the washing water is supplied through the washing water line 51, the washing water pressure causes the wheel to rotate. Washing water is sprayed through the washing nozzle 56 while the body frame 52 moves along the water supply pipe 1 to wash the inner circumferential surface of the water supply pipe 1.
delete According to claim 1,
A sensor 52c for detecting the inner bottom of the water supply pipe 1 is provided on the bottom surface of the body frame 52,
The traction hole 58 is formed in a long hole shape in which the longitudinal cross-sectional shape extends in the longitudinal direction,
The lower surface of the wheel 55 installed on the pipeline carriage 54 in a state where the traction hole 58 is pulled by the draw bar 57 is located lower than the lower surface of the body frame 52,
After the wheel 55 is seated on the inner floor of the water pipe 1 during the downward transfer of the body frame 52 into the water pipe 1 through the opening 42 of the gate module 40, the sensor ( 52c) moves to a position where the inner bottom of the water supply pipe 1 is sensed, the drawbar 57 moves downward through the pull hole 58, and the upper surface of the draw rod 57 and the inner circumferential surface of the pull hole 58 do not come into contact. Waterworks old pipe cleaning system using a water jet, characterized in that provided to be spaced apart in the state.
According to claim 3,
The conduit truck 54,
Front and rear bogie frames 54a and 54b spaced apart from each other and having wheels 55 and washing nozzles 56 installed thereon;
A scissor arm 54c that retractably connects the front and rear bogie frames 54a and 54b,
An elastic body 54d installed between the front and rear bogie frames 54a and 54b to provide an operating force in a direction in which the front and rear bogie frames 54a and 54b are widened;
A rod hole 54e passing through the center of the rear bogie frame 54b in the transverse direction so that the washing water line 51 passes therethrough;
It includes a branch board 54f installed on the front bogie frame 54a and distributing and supplying the washing water supplied through the washing water line 51 to the nozzle 65 and the hydraulic motor 55a,
When the washing water line 51 is pulled by the operating force of the reel 53 in the winding direction, the elastic body 54d is compressed and the gap between the front and rear bogie frames 54a and 54b is reduced and waits,
After the body frame 52 is put into the water supply pipe 1 through the opening 42 of the gate module 40, and the reel 53 is released and the washing water is supplied through the washing water line 51, the elastic body Washing water sprayed through the washing nozzle 56 while moving along the water supply pipe 1 by the rotational force of the wheel 55 with the distance between the front and rear bogie frames 54a and 54b extended by (54d) An old water supply pipe cleaning system using a water jet, characterized in that the inner circumferential surface of the water supply pipe (1) is cleaned by the.
According to claim 4,
Water supply using a water jet, characterized in that the washing nozzle 56 installed on either side of the front and rear bogie frames 54a and 54b is installed at an inclined angle to generate a propulsive force in the running direction of the pipe bogie 54 Old pipe cleaning system.
According to claim 4,
An old water supply pipe cleaning system using a water jet, characterized in that provided to sterilize and disinfect the inner circumferential surface of the water supply pipe (1) by installing an ultraviolet lamp (56a) on the front and rear bogie frames (54a) (54b).

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