WO2022250379A1

WO2022250379A1 - Rotating water jet-type worn pipe washing method combined with water pipe network diagnosis

Info

Publication number: WO2022250379A1
Application number: PCT/KR2022/007216
Authority: WO
Inventors: 이호건
Original assignee: 주식회사 온테크
Priority date: 2021-05-24
Filing date: 2022-05-20
Publication date: 2022-12-01
Also published as: KR102320990B1

Abstract

The purpose of the present invention is to provide a rotating water jet-type worn pipe washing method combined with water pipe network diagnosis, the method in which: a water pipe network is diagnosed; and tap water and high-pressure compressed air are injected by means of a rotating water jet apparatus to remove scale formed on the inner surface of a ground water supply pipe, thereby increasing the scale removal efficiency while minimizing damage to the inner surface of the ground water supply pipe.

Description

Old pipe cleaning method using rotating water jet method combined with water pipe network diagnosis

The present invention relates to an old pipe washing device, and more particularly, to a rotary water jet type old pipe cleaning device that rotates and sprays high-pressure water, and to a rotary water jet type old pipe cleaning method incorporating water supply network diagnosis.

In general, when a water supply pipe is installed and used for a long time, various foreign substances contained in water are deposited on the inner surface of the water supply pipe or rust is generated as the inner surface of the pipe is oxidized to form a scale layer.

When a scale layer is formed due to accumulation of foreign substances inside the water supply pipe, the smooth flow of water is hindered, the water pressure is reduced, and the water quality may be deteriorated due to impurities dissolved into the water from the decayed scale layer.

In order to solve this problem, various types of scale removal devices capable of removing the scale layer formed in old water supply pipes have been developed and used.

For example, Korea Patent Registration No. 10-1008345 has a high-pressure hose; a scraper unit composed of a scraper housing having a high-pressure hose passage to which the high-pressure hose is coupled and a scraper formed on an outer circumferential surface of the scraper housing; In the inner center, a high-pressure hose connection part connected to the high-pressure hose and a first high-pressure water passage through which the high-pressure water supplied from the high-pressure hose can move and an auxiliary rotating part coupling part are formed. A main housing formed with a cover at the other end and having a guide part coupling part and an elastic part coupling part formed in the middle of the outer circumferential surface; a guide portion composed of a guide arm rotatably coupled to the guide coupling portion of the outer circumferential surface of the main housing by means of a pin, a roller bracket coupled to the guide arm, and a guide roller; Consisting of a coupling bolt coupled to the guide coupling portion of the main housing to elastically support the guide arm of the guide portion, first and second washers coupled to the coupling bolt, and a spring formed between the first and second washers an elastic part; It is coupled to the auxiliary rotation part coupling part of the main housing, forms a second high-pressure water passage to the inside, forms an auxiliary rotation device at one end coupled to the auxiliary rotation part coupling part of the main housing, and forms a high-pressure injection part coupling part at the other end. A secondary rotation part being formed; A high-pressure injection housing fixedly coupled to the high-pressure injection coupling part of the auxiliary rotation unit is formed, and the high-pressure water that has moved to the second high-pressure water passage of the auxiliary rotation unit is supplied and discharged to the outside through a pipe line from the high-pressure injection unit housing. A high-pressure spraying unit composed of a nozzle pipe extending in a direction and a high-pressure water spraying nozzle capable of spraying high-pressure water is known.

However, Korean Patent Registration No. 10-1008345 described above has a problem in that the inner wall of the water supply pipe may be damaged because a chain or a plate is used as a means for removing foreign substances.

In addition, the above scale removal device has a problem in that it cannot be applied to water supply pipes of various sizes because the means for removing foreign substances has a fixed length, and can only clean water supply pipes of a limited diameter.

As another example, Korea Patent Registration No. 10-1329309 has a body frame; A rotational shaft rotatably installed inside the body frame and extended in the longitudinal direction of the body frame, connected to one end of the rotational shaft, located in front of the body frame, and rotated by the rotational shaft It is configured to include a rotating body, a plurality of cutting supports installed radially on the outer circumference of the rotating body and configured to be capable of bending by elasticity, and a bite installed at the end of the cutting support body and in contact with the inner wall of the pipe line. a rotary scraper that scrapes and removes the scale and asphalt coal tar enamel on the inner wall of the pipe by the rotation of the rotating body and the strength of the elastic force of the cutting support; a driving motor fixedly installed inside the body frame and connected to the rear of the rotary shaft of the rotary scraper to rotate the rotary scraper by applying a rotational force to the rotary shaft; Conduit inner wall scale and asphalt coal tar enamel removal method and device including a; movement guide part that is radially fixed to the outer circumference of the body frame and supports the body frame so that the body frame can move linearly back and forth along the inner wall of the pipe It is known.

However, Korean Patent Registration No. 10-1329309 described above has the advantage of being able to wash water pipes of various sizes because it uses a rotary scraper that rotates by hydraulic pressure and can change the working radius of rotation while having strong elasticity. The problem of damaging the inner wall of the water supply pipe still exists.

The present invention was invented to solve the above problems, and it is possible to diagnose the water supply pipe network, and remove the scale formed on the inner surface of the water supply pipe by spraying tap water and high-pressure compressed air using a rotating water jet device to reduce the scale. An object of the present invention is to provide a rotating water jet type old pipe cleaning method incorporating water pipe network diagnosis capable of minimizing damage to the inner surface of the water pipe while increasing the removal efficiency.

The object of the present invention as described above,

A preparation step of selecting a working section of the water supply pipe to be cleaned;

Installing a saddle branch in a water supply pipe outside the work section, upstream of a first water valve installed at the top of the water supply pipe in the work section;

installing a work tool in a water supply pipe within the work section adjacent to the first wash valve toward a downstream side of the first wash valve;

Taking a picture of the state inside the water supply pipe in the work section using CCTV and measuring the quality of tap water;

Installing a washing pipe and a rotating water jet device inside the water supply pipe in the work section through the work tool;

connecting the washing pipe and the compressed air generator with a compressed air supply pipe;

connecting the saddle branch and the washing pipe to a water pipe;

installing a water outlet in the water supply pipe in the work section adjacent to the second wash valve upstream of the second wash valve installed at the most downstream of the water supply pipe in the work section;

Tap water flowing into the washing pipe through the water pipe is mixed with high-pressure compressed air supplied from the compressed air generator, moved to the rotary water jet device, and then sprayed at high pressure by a rotating nozzle to spray the inside of the water supply pipe. washing;

Determining whether the internal cleaning of the water supply pipe is completed by photographing the state inside the water supply pipe in the work section using CCTV and measuring the water quality; and

When it is determined that the internal cleaning of the water supply pipe is completed, restoring the work section; can be achieved by providing a rotating water jet type old pipe cleaning method incorporating the diagnosis of the water supply pipe network.

At this time, a water quantity control valve installed in the water pipe, opening and closing the water pipe, and adjusting the amount of tap water supplied to the washing pipe; and an air control valve installed in the compressed air supply pipe, opening and closing the compressed air supply pipe, and adjusting the amount of compressed air supplied to the washing pipe.

In addition, in the step of installing the work tool in the water supply pipe within the work section, the work tool is installed using the first sub-segment pipe, and in the step of installing the water outlet in the water supply pipe in the work section, the second sub-segment pipe is installed. The outlet can be installed using

In addition, the rotary water jet device may include a body fixed to one end of the washing pipe; and a rotating nozzle rotatably installed with respect to the body and spraying water, wherein the rotating nozzle may be detachably installed from the body.

In addition, in the step of connecting the saddle branch and the washing pipe to the water pipe, the water pipe may be connected to the washing pipe in a T-shape.

According to the old pipe cleaning method of the rotating water jet method incorporating the water pipe network diagnosis according to an embodiment of the present invention as described above, the scale formed on the inner surface of the water supply pipe by spraying tap water together with high-pressure compressed air using a rotating water jet device. Since it removes foreign substances such as scale, it is possible to minimize damage to the inner surface of the water supply pipe by washing while increasing the removal efficiency of scale.

In addition, according to the old pipe cleaning method of the rotary water jet method incorporating the diagnosis of the water pipe network according to an embodiment of the present invention, a saddle branch is installed upstream of the previously installed water valve, and tap water diverged from the saddle branch is supplied to the rotary water jet device. Since the inner surface of the water supply pipe is cleaned, there is an advantage in that it is possible to prevent dripping water from occurring in the front of the water valve.

1 is a flow chart showing an old pipe cleaning method of a rotating water jet method incorporating water pipe network diagnosis according to an embodiment of the present invention;

2 is a diagram conceptually showing a rotating water jet type old pipe cleaning device used in a rotating water jet type old pipe cleaning method grafted with water pipe network diagnosis according to an embodiment of the present invention;

FIG. 3 is a diagram showing a rotary water jet device used in the old pipe cleaning method of the rotary water jet method to which the water pipe network diagnosis is grafted according to an embodiment of the present invention.

The embodiments described below are shown by way of example to aid understanding of the present disclosure, and it should be understood that the present disclosure may be variously modified and implemented differently from the embodiments described herein. However, in the following description of the present disclosure, when it is determined that a detailed description of a related known function or component may unnecessarily obscure the subject matter of the present disclosure, the detailed description and specific illustration thereof will be omitted. In addition, the accompanying drawings are not drawn to an actual scale to aid understanding of the disclosure, and the dimensions of some components may be exaggerated.

Terms used in the embodiments of the present disclosure may be interpreted as meanings commonly known to those skilled in the art unless otherwise defined.

In addition, terms such as 'front end', 'rear end', 'upper end', 'lower end', 'upper end', and 'lower end' used in the present disclosure are defined based on drawings, and by these terms, the shape and Location is not limited.

Hereinafter, with reference to the accompanying drawings, the old pipe cleaning method of the rotating water jet method grafted with the water pipe network diagnosis according to the present invention will be described in detail.

1 is a flow chart showing a method of washing old pipes of a rotating water jet method in which water pipe network diagnosis is grafted according to an embodiment of the present invention. 2 is a diagram conceptually showing a rotating water jet type old pipe cleaning device used in a rotating water jet type old pipe cleaning method grafted with water pipe network diagnosis according to an embodiment of the present invention.

First, a preparation step for executing the old pipe cleaning method of the rotating water jet method grafted with the water pipe network diagnosis according to an embodiment of the present invention is performed (S10). Specifically, a water supply pipe line to be cleaned, that is, a work section of a water supply pipe to be washed is selected in the water pipe network, and the washing operation is prepared.

Hereinafter, the preparation step of selecting the working section of the water supply pipe to be cleaned from among the water supply pipe network will be described in detail.

The preparation step may largely include a step of collecting basic data, a step of establishing a pipe cleaning plan, and a step of establishing a construction plan for establishing a detailed cleaning action plan.

In the stage of collecting basic data, it is possible to check the location of the water supply pipe to be cleaned using the water supply pipe network map, the current status of water supply facilities, and the underground facility management ledger, and conduct a field survey.

Specifically, the step of collecting basic data may include a step of collecting and organizing basic data, a step of establishing a detailed on-site investigation plan, and a step of conducting a detailed on-site investigation.

In the basic data collection and arrangement stage, the waterworks network map and current status of waterworks facilities are investigated, and an underground facility management ledger for the target waterworks network is prepared. In addition, data necessary for other field investigations are collected and organized.

In the stage of establishing a detailed site survey plan, facilities such as water supply facilities are surveyed on a map. In addition, hydrants and consumers are surveyed on a road map.

In the on-site detailed survey implementation stage, a detailed on-site survey of facilities, hydrants, and consumers, etc. investigated on a map is conducted, and an on-site survey report is prepared.

In the stage of establishing a pipe cleaning plan, the work section of the water supply pipe to be cleaned is selected, and the location of the work outlet and drain outlet is set. At this time, review whether the position of the set tool is appropriate.

As the working section, the part of the water supply pipe between two water valves that are already installed in the water supply pipe and are separated from each other by a certain distance can be selected. At least one divisor may exist in the water supply pipe between the first divisor, which is the starting point of the work section, and the second divisor, which is the end point of the work section.

Next, plan the number of workers and input equipment required for the cleaning operation.

In addition, it is reviewed whether the location of the Ito valve and the fire hydrant is appropriate.

Next, establish a construction plan that establishes a detailed cleaning action plan.

When the preparation step for the washing operation is completed, the washing operation is performed on the portion of the water supply pipe selected as the working section.

In the case of the embodiment shown in FIG. 2 , the portion of the water supply pipe 100 between the first water valve 110 and the second water valve 120 previously installed in the water supply pipe 100 corresponds to the work section. The first water valve 110 is installed at the most upstream, that is, the most upstream, of the water supply pipe 100 selected as the work section, and the second water valve 120 is installed at the lowest, that is, the most downstream, of the water supply pipe 100, have.

The first water valve 110 and the second water valve 120 are installed in the existing water supply pipe 100 and are formed to control the amount of tap water flowing through the water pipe 100.

In the embodiment shown in FIG. 2, it is shown that there is no other divisor between the first divisor 110 and the second divisor 120, but as another example, between the first divisor 110 and the second divisor 120 may have at least one other divisor. In this case, the washing operation may be performed after preventing tap water flowing through the selected water supply pipe 100 from leaking by blocking other water valves.

Next, the saddle branch 10 is installed in the water supply pipe 100a outside the working section, which is upstream of the first water valve 110 installed at the most upstream of the water supply pipe 100 in the working section (S20).

Specifically, the saddle branch 10 is installed in the water supply pipe 100a upstream of the first water valve 110. That is, the saddle branch 10 is installed in the part of the water supply pipe 100a, not the working section. The saddle branch 10 is installed to supply tap water for washing to the washing pipe 30.

Therefore, a water pipe 11 for discharging tap water flowing from an upstream side of the first water valve 110 is connected to the saddle branch 10 .

A water quantity control valve 13 is installed in the water pipe 11 to open and close the water pipe 11. When the water control valve 13 is opened, tap water flowing through the water supply pipe 100 upstream of the first water valve 110 may be supplied to the washing pipe 30 through the water pipe 11 .

When the installation of the saddle branch 10 is completed, the first water valve 110 is blocked so that tap water does not flow into the water supply pipe 100 in the work section through the first water valve 110. In addition, the second water valve 120 is also blocked to prevent tap water containing foreign substances from flowing downstream of the second water valve 120 .

Subsequently, the work tool 21 is installed in the water supply pipe 100 in the work section (S30). The work tool 21 may be installed on the upstream side of the water supply pipe 100 in the work section based on the direction in which tap water flows.

The work tool 21 is installed adjacent to the first water valve 110 already installed at the top of the water supply pipe 100 in the work section. That is, the work tool 21 is installed in the water supply pipe 100 adjacent to the first water valve 110 on the downstream side of the first water valve 110 .

The work tool 21 may be formed by installing the first sedentary pipe 20 without cutting the water supply pipe 100 . Since the first spermatic cord 20 is formed in a T-shape with a short neck, the T-shaped head 22 is coupled to the water supply pipe 100. Subsequently, a portion of the water supply pipe 100 corresponding to the hollow pipe portion 23 provided at the portion corresponding to the neck of the letter T of the first spermatic pipe 20 is drilled. Then, the pipe part 23 of the first spermatic pipe 20 communicates with the water supply pipe 100 . That is, the pipe part 23 of the first spermatic cord 20 forms a work tool 21 for cleaning the water supply pipe. At this time, the work tool 21, that is, the pipe part 23 of the first sperm tube 20 may be installed upward, that is, facing the ground 3.

In addition, a first water regulating valve 25 capable of opening and closing the work tool 21 is installed in the pipe part 23 of the first allocator pipe 20.

Next, by using CCTV, the state inside the water supply pipe 100 in the work section is photographed and the quality of tap water is measured (S40).

Specifically, the first water control valve 25 is opened, and a movable CCTV movable in the water supply pipe 100 is introduced through the work hole 21, and the state inside the water supply pipe 100, that is, the water supply pipe 100 ) Photograph the state of foreign substances such as scale attached to the inner surface. When the state of the inner surface of the water supply pipe 100 is completed, the mobile CCTV is removed from the water supply pipe 100.

In addition, water quality such as residual foreign matter, turbidity, chromaticity, and residual chlorine of tap water flowing through the water supply pipe 100 is measured.

On the other hand, it is possible to measure whether or not there is water leakage and the amount of water leakage by measuring water pressure and flow rate in the work tool 21 . Specifically, a portable flowmeter is installed on the outer surface of the water supply pipe 100 adjacent to the work tool 21, and the first water valve 110 adjacent to the work tool 21 is opened.

Since the second water valve 120 and other water valves in the water supply pipe 100 in the work section are blocked, tap water does not flow when there is no leak, so the flow rate cannot be measured with a portable flow meter.

However, if the flow rate can be measured with a portable flow meter, it means that tap water leaks somewhere in the water supply pipe 100 in the working section.

If it is difficult to measure the flow rate with the existing water pressure, high-pressure compressed air is injected into the water supply pipe 100 through the compressed air generator 50 installed in the work tool 21. Then, since the water pressure of the tap water flowing through the water supply pipe 100 in the working section increases, the flow rate can be easily measured with a portable flow meter when a leak occurs.

Therefore, by measuring the flow rate of the water supply pipe 100 with a portable flow meter, it is possible to determine whether there is a leak in the water supply pipe 100 within the working section. In addition, the leakage amount may be calculated based on the flow rate measured by the flow meter and the flow rate of tap water supplied through the first water valve 110 .

Next, the washing pipe 30 and the rotary water jet device 40 are installed inside the water supply pipe 100 in the working section through the work tool 21 (S50).

Specifically, the washing pipe 30 may be installed substantially perpendicular to the working tool 21 of the first spermatic pipe 20 .

The rotary water jet device 40 is installed at one end of the washing pipe 30 and is formed to rotate and jet the high-pressure compressed air and tap water supplied through the washing pipe 30 through the rotary nozzle 42 .

One end of the washing pipe 30 may be bent at an angle of about 90 degrees so that the rotary water jet device 40 may be positioned substantially parallel to the water supply pipe 100 .

Next, the washing pipe 30 and the compressed air generator 50 are connected to the compressed air supply pipe 51 (S60).

Specifically, the compressed air generator 50 is installed on the ground 3 adjacent to the work tool 21 and connected to the washing pipe 30 using the compressed air supply pipe 51. At one end of the compressed air supply pipe 51 adjacent to the washing pipe 30, an air control valve 53 capable of opening and closing the compressed air supply pipe 51 and adjusting the amount of compressed air supplied to the washing pipe 30 is installed do.

Subsequently, the saddle branch 10 and the washing pipe 30 are connected to the water pipe 11 (S70).

Specifically, one end of the water pipe 11 connected to the saddle branch 10 is connected to the washing pipe 30. Then, tap water may be supplied to the washing pipe 30 through the water pipe 11 .

Next, the water outlet 61 is installed in the water supply pipe 100 within the work section (S80).

Specifically, the water outlet 61 is installed in the water supply pipe 100 adjacent to the second water valve 120 toward the upstream side of the second water valve 120 installed at the most downstream of the water supply pipe 100 in the work section. That is, the water outlet 61 may be installed on the downstream side of the water supply pipe 100 in the work section based on the direction in which tap water flows. In addition, the water drain 61 is installed in the water supply pipe 100 in the work section upstream of the second water valve 120.

Similarly to the work tool 21, the water drain port 61 may be formed by installing the second segregation pipe 60 without cutting the water supply pipe 100. When the second sperm pipe 60 is installed in the water supply pipe 100, the pipe portion 63 of the second sperm pipe 60 communicated with the water supply pipe 100 forms the water outlet 61.

Since the second semen tube 60 is formed in a T-shape with a short neck, the T-shaped head 62 is coupled to the water supply pipe 100. Subsequently, when the part of the water supply pipe 100 corresponding to the hollow pipe part 63 provided at the part corresponding to the neck of the letter T is punctured, the pipe part 63 of the second sperm pipe 60 is formed with the water supply pipe 100. communicated That is, the pipe part 63 of the second sperm pipe 60 communicated with the water supply pipe 100 forms the water outlet 61 .

Meanwhile, in order to install the work tool 21 and the drain port 61, when installing the first and

second qualifier pipes

20 and 60 on the water supply pipe 100, the surface of the water supply pipe 100 is perforated. Therefore, when drilling, a sample of the water supply pipe 100 to be cleaned can be taken. The durability and service life of the water supply pipe 100 can be determined using the collected samples.

Subsequently, a second water regulating valve 65 capable of opening and closing the water outlet 61 and a drain pipe 70 are installed in the water outlet 61 . When the second water control valve 65 is opened, tap water containing foreign substances removed from the inner surface of the water supply pipe 100 may be discharged to the outside through the drain pipe 70 .

A microfiltration device 80 may be installed at the other end of the drain pipe 70. The microfiltration device 80 is formed to filter tap water containing foreign substances discharged through the drain pipe 70 .

Next, the inside of the water supply pipe 100 is cleaned by rotating and spraying high-pressure compressed air and tap water using the rotary water jet device 40 installed in the work tool 21 (S90). That is, tap water flowing into the washing pipe 30 through the water pipe 11 is mixed with high-pressure compressed air supplied from the compressed air generator 50 and moved to the rotary water jet device 40, and then the rotary nozzle 42 ) to clean the inside of the water supply pipe 100 by rotating and spraying at high pressure.

Specifically, the second water control valve 65 of the water outlet 61 is opened, and the compressed air generator 50 is operated to generate high-pressure compressed air.

Subsequently, when the air control valve 53 is opened, compressed air is injected into the washing pipe 30 through the compressed air supply pipe 51 . The compressed air injected into the washing pipe 30 is discharged into the water supply pipe 100 through the rotary water jet device 40 installed at the front end of the washing pipe 30 .

In this state, when the water control valve 13 is opened, tap water is injected into the washing pipe 30 through the water pipe 11. At this time, since compressed air flows through the washing pipe 30 at high speed, tap water introduced from the water pipe 11 is mixed with the compressed air and supplied to the rotary water jet device 40 .

The high-pressure compressed air and tap water supplied to the rotary water jet device 40 are rotated and sprayed through the rotary nozzle 42 to clean the inner surface of the water supply pipe 100 .

At this time, the flow rate of tap water can be appropriately adjusted with the water control valve 13 to remove the scale inside the water supply pipe 100, and the pressure and air amount of the high-pressure compressed air can be properly adjusted with the air control valve 53. have.

In this way, when high-pressure compressed air and tap water are sprayed through the rotating nozzle 42 of the rotary water jet device 40 to the inner surface of the water supply pipe 100, the high-pressure compressed air and tap water are sprayed onto the inner surface of the water supply pipe 100. Foreign substances such as scale attached to the inner surface of the water supply pipe 100 may be removed by the impact force of collision, the frictional force between the rapidly rotating tap water and the inner surface of the water supply pipe, and the cavitation action.

In the washing step, since the first water valve 110 and the second water valve 120 of the water supply pipe 100 are closed, the tap water containing the removed foreign substances is discharged to the outside through the drain pipe 70 connected to the drain 61. It is discharged.

A microfiltration device 80 is installed at one end of the drain pipe 70 exposed to the outside.

Tap water containing foreign substances generated by performing the above-described washing operation, that is, discharged water is contaminated water mixed with heavy metals. Therefore, if discharged water is discharged to the outside as it is, environmental pollution may occur.

Therefore, in the old pipe washing method of the rotating water jet method in which the water pipe network diagnosis according to an embodiment of the present invention is grafted, the water discharged from the water outlet 61 is filtered through the microfiltration device 80. The microfiltration device 80 can prevent environmental pollution by restoring the quality of contaminated waste water so that it can be reused as industrial, agricultural, and public water.

When the cleaning work of the water supply pipe 100 is completed, the inside state of the water supply pipe 100 in the work section is photographed using a mobile CCTV and the water quality of the tap water is measured to determine whether the washing of the inside of the water pipe 100 has been completed. Do (S100).

Specifically, a mobile CCTV is put into the inside of the water supply pipe 100 in the work section to photograph the state inside the water supply pipe 100. Through the photographed image, it is confirmed whether foreign substances such as scale are removed from the inner surface of the water supply pipe 100. In addition, the first water valve 110 is opened to allow tap water to flow through the water supply pipe 100, and the quality of tap water discharged through the drain 61 is measured.

If the foreign matter on the inner surface of the water supply pipe 100 is removed through the captured image and the water quality of tap water is equal to or higher than the standard water quality, the water supply pipe cleaning operation is completed.

If the foreign matter is not completely removed or the water quality of tap water does not satisfy the standard water quality, the water supply pipe 100 is cleaned again until the foreign material is completely removed and the water quality standard is satisfied.

When it is determined that the internal cleaning of the water supply pipe 100 is completed, the work section is restored (S110).

Specifically, a water pipe inspection room (90, 92) can be installed.

Entrances

91 and 93 through which workers can enter and exit the water

pipe inspection rooms

90 and 92 may be provided at upper ends of the water

pipe inspection rooms

90 and 92 .

In addition, a water quality measuring instrument, a water pressure measuring instrument, a leak detector, etc. may be installed in the work tool 21 so that the water supply pipe management subject can always check the water supply pipe 100 within the work section.

Hereinafter, the rotating water jet type old pipe cleaning device 1 used in the rotating water jet type old pipe cleaning method grafted with the water pipe network diagnosis according to the above-described embodiment of the present invention will be described in detail with reference to FIG. 2 .

Referring to FIG. 1 , an old pipe washing device 1 of a rotary water jet method according to an embodiment of the present invention includes a saddle branch 10, a first spermatic pipe 20, a washing pipe 30, and a rotary water jet device 40. ), a water pipe 11, a compressed air supply pipe 51, a compressed air generator 50, a second allocator pipe 60, and a microfiltration device 80.

According to an embodiment of the present invention, the old pipe cleaning device 1 of the rotary water jet method includes a first water valve 110 previously installed in the water supply pipe 100 to select some of the water supply pipes 100 to be cleaned among the water supply pipe lines. ) and the second water valve 120.

When the first water valve 110 and the second water valve 120 are blocked, tap water does not flow through the first water valve 110 and the second water valve 120 . Therefore, the old pipe cleaning apparatus 1 of the rotating water jet method according to an embodiment of the present invention can clean the inner surface of the water supply pipe 100 between the first water valve 110 and the second water valve 120.

The saddle branch 10 is installed to supply tap water flowing through the water supply pipe 100 to the old pipe cleaning device 1 of a rotary water jet method according to an embodiment of the present invention. That is, the saddle branch 10 may be provided in the water supply pipe 100a outside the working section to supply tap water upstream of the first water valve 110 to the rotary water jet device 40 .

Therefore, the saddle branch 10 is installed in the water supply pipe 100a upstream of the blocked first water valve 110. Since tap water flows upstream of the first water valve 110 , the tap water may branch through the saddle branch 10 .

A water pipe 11 is connected to the saddle branch 10 to supply tap water to the washing pipe 30.

In this way, when the saddle branch 10 is installed upstream of the first water valve 110 and the tap water branched from the saddle branch 10 is supplied to the rotary water jet device 40 to wash the inner surface of the water supply pipe 100, It is possible to prevent dripping water from occurring in front of the first water valve 110 .

When tap water is directly supplied to the rotary water jet device 40 using the first water valve 110 without using the saddle branch 10, when the first water valve 110 is opened, the first water valve 110 is damaged due to water shock. Since there is a very high possibility that a foe will occur in the front, the present invention has an effect of preventing this.

The first allocator pipe 20 is installed in the water supply pipe 100 so that the washing pipe 30 in which the rotary water jet device 40 is installed can be installed inside the water supply pipe 100 without cutting the water pipe 100. .

The first allocator pipe 20 is installed in the water supply pipe 100 downstream of the first water valve 110 . That is, in FIG. 1 , the first allocator pipe 20 is installed on the right side of the first water valve 110 .

The first spermatic cord 20 is formed in a T-shape with a short neck, and the T-shaped head 22 is coupled to the water supply pipe 100. When the part of the water supply pipe 100 corresponding to the hollow pipe part 23 provided at the part corresponding to the neck of the letter T is punctured, the pipe part 23 of the first spermatic pipe 20 communicates with the water supply pipe 100. . Therefore, the pipe part 23 of the first spermatic cord 20 may form a work tool 21 for performing the water supply pipe cleaning operation.

Therefore, the rotary water jet device 40 may be installed inside the water supply pipe 100 through the pipe portion 23 of the first spermatic pipe 20 . At this time, the pipe part 23 of the first spermatic cord 20 may be installed so as to face upward, that is, to the ground 3.

A first water regulating valve 25 may be installed in the pipe part 23 of the first allocator pipe 20 . The first water regulating valve 25 is formed to open and close the pipe part 23 of the first allocator pipe 20 . When the first water control valve 25 is opened, the operator can install the washing pipe 30 and the rotary water jet device 40 inside the water supply pipe 100 .

When the first water control valve 25 is closed, tap water inside the water supply pipe is not discharged to the outside through the pipe part 23. Accordingly, when the cleaning operation of the water supply pipe 100 is completed, the first water regulating valve 25 is shut off to prevent tap water from leaking out through the first water supply pipe 20.

The washing pipe 30 is formed to supply high-pressure compressed air and tap water to the rotary water jet device 40 . The rotary water jet device 40 is installed at one end of the washing pipe 30 located inside the water supply pipe 100, and the other end of the washing pipe 30 extending to the outside of the first water supply pipe 20 is a compressed air supply pipe. (51) can be linked.

The washing pipe 30 may be installed inside the water supply pipe 100 through the first spermatic pipe 20 . Specifically, one end of the washing pipe 30 in which the rotary water jet device 40 is installed may be installed inside the water supply pipe 100 through the pipe part 23 of the first spermatic pipe 20 . The other end of the washing pipe 30 may be exposed to the outside of the first spermatic drainage pipe 20 and connected to the compressed air supply pipe 51 .

The rotary water jet device 40 is installed at one end of the washing pipe 30, that is, at the front end of the washing pipe 30 located inside the water supply pipe 100.

Referring to FIG. 3 , the rotary water jet device 40 includes a body 41 fixed to one end of the washing pipe 30 and a rotating nozzle 42 rotatably installed with respect to the body 41 and spraying water. can include

The rotary nozzle 42 may be detachably installed while rotating with respect to the body 41 .

Inside the body 41, a flow path through which tap water and compressed air can pass is provided. The washing pipe 30 is coupled to one end of the body 41, and the rotating nozzle 42 is rotatably installed at the other end of the body 41.

The rotating nozzle 42 is rotatably connected to the body 41, and a plurality of discharge ports 43 are provided on the side. High-pressure compressed air and tap water are simultaneously injected through the discharge port 43 . The discharge port 43 may be formed to allow high-pressure compressed air and tap water to hit the inner surface of the water supply pipe 100 .

When high-pressure compressed air and tap water are sprayed by the rotary nozzle 42, foreign substances such as scale and manganese stains on the inner surface of the water supply pipe 100 can be removed by the frictional force of the high-pressure compressed air and tap water and the fast flow rate. .

The water pipe 11 connects the washing pipe 30 and the saddle branch 10 to supply tap water to the washing pipe 30. That is, one end of the water pipe 11 is connected to the saddle branch 10, and the other end of the water pipe 11 is connected to the washing pipe 30. The other end of the water pipe 11 may be connected to a portion of the washing pipe 30 adjacent to a portion where the washing pipe 30 and the compressed air supply pipe 51 are connected.

The water pipe 11 may be connected to the washing pipe 30 in a T shape. That is, the washing pipe 30 may form the head of the letter T, and the water pipe 11 may form the neck of the letter T.

In this way, when the water pipe 11 is connected to the washing pipe 30 in a T-shape, high-pressure compressed air flows through the washing pipe 30 at high speed, so that tap water in the water pipe 11 is easily transferred to the washing pipe 30. It can be sucked in and mixed with compressed air.

A water quantity control valve 13 for opening and closing the water pipe 11 may be installed in the water pipe 11 . Therefore, when the water control valve 13 is opened, tap water is supplied to the washing pipe 30 through the water pipe 11, and when the water control valve 13 is closed, tap water is not supplied to the washing pipe 30.

In addition, the water quantity control valve 13 is formed to adjust the amount of tap water supplied from the water pipe 11 to the washing pipe 30. The water quantity control valve 13 may be installed in a portion of the water pipe 11 adjacent to one end connected to the washing pipe 30.

The compressed air supply pipe 51 is connected to the washing pipe 30 and is formed to supply compressed air generated in the compressed air generating device 50 to the washing pipe 30 . That is, one end of the compressed air supply pipe 51 may be connected to the washing pipe 30, and the other end may be connected to the compressed air generator 50.

An air control valve 53 capable of opening and closing the compressed air supply pipe 51 may be installed at one end of the compressed air supply pipe 51 connected to the washing pipe 30 . Therefore, when the air control valve 53 is opened, the compressed air generated in the compressed air generator 50 is supplied to the washing pipe 30, and when the air control valve 53 is closed, the compressed air generator 50 ) is not supplied to the washing pipe 30.

In addition, the air control valve 53 may be formed to adjust the amount of compressed air supplied from the compressed air generator 50 to the washing pipe 30.

The compressed air generating device 50 is formed to generate high-pressure compressed air and supply it while maintaining the pressure. Compressed air generating device 50 may be formed to adjust the pressure of the compressed air generated.

The second sperm pipe 60 is spaced apart from the first sperm pipe 20 by a predetermined distance and is installed in the water supply pipe 100 . Specifically, the second allocator pipe 60 is installed in the water supply pipe 100 adjacent to the upstream side of the second water valve 120 installed in the water supply pipe 100 at a predetermined distance downstream from the first water supply valve 110. . That is, in FIG. 1 , the second sperm tube 60 is installed on the left side of the second water valve 120 .

The second spermatic pipe 60 is installed in the water supply pipe 100 to discharge tap water containing foreign substances such as scale and manganese dirt separated from the inner surface of the water supply pipe 100 by the rotary water jet device 40. .

The second spermatic tube 60 is formed in a T-shape with a short neck. When the T-shaped head 62 is coupled to the water supply pipe 100 and the part of the water supply pipe 100 corresponding to the hollow pipe 63 provided at the part corresponding to the T-shaped neck is pierced, the second spermatic pipe The pipe part 63 of (60) may be in communication with the water supply pipe (100). That is, the pipe part 63 of the second sperm pipe 60 communicated with the water supply pipe 100 forms the water outlet 61 .

Accordingly, tap water containing foreign substances removed from the water supply pipe 100 may be discharged to the outside of the water supply pipe 100 through the pipe part 63 of the second sperm pipe 60 .

A second water regulating valve 65 is installed in the pipe part 63 of the second allocator pipe 60. The second water regulating valve 65 is formed to open and close the pipe part 63 of the second sperm pipe 60. When the second water control valve 65 is opened, tap water containing foreign substances removed from the inner surface of the water supply pipe 100 may be discharged to the outside.

When the second water control valve 65 is closed, tap water inside the water supply pipe 100 is not discharged to the outside through the pipe part 63. Accordingly, when the cleaning operation of the water supply pipe 100 is completed, the second water regulating valve 65 is shut off to prevent tap water from flowing out through the second sperm pipe 60.

A drain pipe 70 for discharging tap water may be connected to the pipe part 63 of the second sperm pipe 60 . Accordingly, when the second water control valve 65 is opened, tap water containing foreign substances may be discharged to the outside through the drain pipe 70 .

A microfiltration device 80 may be installed at one end of the drain pipe 70. The microfiltration device 80 filters tap water discharged through the drain pipe 70 connected to the second spermatic drainage pipe 60 to remove contaminants such as heavy metals. Then, since the quality of tap water discharged through the drain pipe 70 is restored, it can be reused as industrial, agricultural, and public water. Therefore, it is possible to prevent environmental pollution caused by tap water generated from washing the water supply pipe 100 .

The operation of the rotating water jet type old pipe cleaning device 1 according to an embodiment of the present invention having the above structure will be described in detail with reference to FIG. 2 .

First, by operating the compressed air generator 50, compressed air is supplied to the compressed air supply pipe 51.

When the air control valve 53 installed in the compressed air supply pipe 51 is opened, high-pressure compressed air is supplied to the washing pipe 30.

Subsequently, when the water control valve 13 installed in the water pipe 11 is opened, tap water is supplied to the washing pipe 30.

Tap water supplied to the washing pipe 30 is supplied to the rotary water jet device 40 together with compressed air.

Tap water and compressed air supplied to the rotary water jet device 40 are simultaneously injected into the water supply pipe 100 through the rotary nozzle 42 at high pressure.

Compressed air and tap water sprayed by rotation at high pressure collide with the inner surface of the water supply pipe 100 to separate foreign substances such as scale and manganese, thereby cleaning the inner surface of the water supply pipe 100. Specifically, the impact force of the high-pressure tap water and compressed air simultaneously discharged from the rotary nozzle 42 of the rotary water jet device 40 colliding with the inner surface of the water supply pipe 100, the frictional force caused by the flow of tap water rotating at high speed, and Due to the cavitation action, foreign substances such as scale and manganese stain attached to the inner surface of the water supply pipe 100 may be removed.

Tap water containing foreign substances removed from the inner surface of the water supply pipe 100 is discharged through the drain pipe 70 connected to the second sperm pipe 60 .

As tap water containing foreign substances discharged through the drain pipe 70 passes through the microfiltration device 80, the foreign substances are filtered. Filtered tap water can be reused for industrial, agricultural and public water purposes.

As described above, according to the rotational waterjet method of cleaning old pipes incorporating the diagnosis of the water pipe network according to an embodiment of the present invention, unlike the prior art, it rotates at high pressure through a rotating nozzle without using a scraper that scrapes the inner surface of the water pipe. Since foreign matter such as scale adhered to the inner surface of the water supply pipe can be removed by the sprayed tap water and compressed air, there is an advantage in that it is possible to efficiently clean the water pipe while minimizing damage to the inner surface of the water pipe.

In addition, according to the old pipe cleaning method of the rotary water jet method incorporating the diagnosis of the water pipe network according to an embodiment of the present invention, tap water is not supplied to the rotary water jet device through the already installed water valve, but branched from the saddle branch installed upstream of the water valve. Since the inner surface of the water supply pipe is cleaned by supplying tap water to the rotary water jet device, there is an advantage in that it is possible to prevent dripping water from occurring in front of the water valve.

The present disclosure has been described above in an exemplary manner. The terms used herein are for descriptive purposes and should not be construed in a limiting sense. Depending on the above, various modifications and variations of the present disclosure are possible. Accordingly, the present disclosure may be freely practiced within the scope of the claims unless otherwise stated.

[Description of code]

One; Rotating water jet type old pipe cleaning device

10; saddle branch 11; water pipe

13; Quantity control valve 20; 1st qualifier

21; working tool 23; government department

25; first water regulating valve 30; washing pipe

40; rotary water jet device 41; body

42; rotating nozzle 50; Compressed air generator

51; Compressed air supply pipe 60; 2nd Qualified Person

61; drain 62; government department

65; Second water control valve 70; drain

80; Microfiltration device 100; water pipe

110; The first water valve 120; 2nd waterfront

Claims

A preparation step of selecting a working section of the water supply pipe to be cleaned;

Installing a saddle branch in a water supply pipe outside the work section, upstream of a first water valve installed at the top of the water supply pipe in the work section;

installing a work tool in a water supply pipe within the work section adjacent to the first wash valve toward a downstream side of the first wash valve;

Taking a picture of the state inside the water supply pipe in the work section using CCTV and measuring the quality of tap water;

Installing a washing pipe and a rotating water jet device inside the water supply pipe in the work section through the work tool;

connecting the washing pipe and the compressed air generator with a compressed air supply pipe;

connecting the saddle branch and the washing pipe to a water pipe;

installing a water outlet in the water supply pipe in the work section adjacent to the second wash valve upstream of the second wash valve installed at the most downstream of the water supply pipe in the work section;

Tap water flowing into the washing pipe through the water pipe is mixed with high-pressure compressed air supplied from the compressed air generator, moved to the rotary water jet device, and then sprayed at high pressure by a rotating nozzle to spray the inside of the water supply pipe. washing;

Determining whether the internal cleaning of the water supply pipe is completed by photographing the state inside the water supply pipe in the work section using CCTV and measuring the water quality; and

When it is determined that the internal cleaning of the water supply pipe is completed, restoring the work section; Rotating water jet type old pipe cleaning method incorporating water supply network diagnosis, characterized in that it comprises.
According to claim 1,

a water quantity control valve installed in the water pipe, opening and closing the water pipe, and adjusting the amount of tap water supplied to the washing pipe; and

An air control valve installed in the compressed air supply pipe, opening and closing the compressed air supply pipe, and adjusting the amount of compressed air supplied to the washing pipe; Old pipe cleaning method.
According to claim 1,

In the step of installing the work tool in the water supply pipe in the work section,

Installing the work tools using the first allocator pipe;

In the step of installing the water outlet in the water supply pipe in the work section,

An old pipe cleaning method of a rotating water jet method incorporating water pipe network diagnosis, characterized in that the water outlet is installed using a second sperm pipe.
According to claim 1,

The rotary water jet device,

a body fixed to one end of the washing pipe; and

A rotating nozzle rotatably installed with respect to the body and spraying water; includes,

The rotating nozzle is detachably installed on the body.
According to claim 1,

In the step of connecting the saddle branch and the washing pipe to the water pipe,

The water pipe is connected to the washing pipe in a T-shape.