KR102645407B1 - How to clean the water supply pipe using the floating nozzle connected to the end of the washing hose - Google Patents

Abstract

In the present invention, a saddle fountain is installed in a water pipe to form a through hole, a cleaning discharge hose and a floating nozzle are introduced through the through hole, and the inner surface of the water pipe is affected by the cleaning water sprayed through the spray hole of the floating nozzle. It removes foreign substances such as slime, sludge, sludge, etc., protects the floating nozzle with a protective net, reduces maintenance costs and time, and improves cleaning efficiency to remove foreign substances inside water pipes buried underground. A water pipe cleaning method, comprising: a water pipe network connection analysis step of selecting and determining a washing section by analyzing the network connection state where the water pipes are installed and the installation locations of manholes and fire hydrants using relevant drawings and on-site verification; A water cut promotion water pipe valve blocking step of pre-promoting water cutoff to each customer in the washing section and blocking the first water valve, the second water valve, and each individual water hydrant valve installed in the wash section; Install the 1st saddle fountain hydrant at the next stage in the forward direction of the 1st water sump valve, install the 2nd saddle fountain hydrant at the forward end of the 2nd water valve, drill the first and second through holes, respectively, and drill the inside. An internal imaging step of water pipe penetration hole formation photographed with an endoscope; A water pipe water discharge step in which one end of the cleaning discharge hose is connected and installed in the first and second through holes in a watertight state, and the supply and discharge pump installed on the other end is driven to pump out the water remaining inside the water pipe and discharge it to the outside. ; A washing water recycling facility installation step of installing a filtration facility system that separates and removes foreign substances from the water used for cleaning water pipes and purifies them by chemical disinfection, etc.; A water pipe cleaning discharge hose input step of installing and inserting a cleaning discharge hose and a floating nozzle into one or more than one selected from the first and second through holes, respectively, in a watertight state; A water pipe cleaning step of removing and washing foreign substances stuck to the inner surface of the water pipe with water sprayed through the spray hole of the floating nozzle; A water quality test step of photographing the inside of a water pipe that has been cleaned using an endoscope to visually check the cleaning state, and confirming through a water quality test whether it meets drinking water standards; A treatment water discharge through hole that discharges the remaining treatment water or washing water containing foreign substances to the outside of the water supply pipe through the washing discharge hose connected to the second through hole, and then closes each through hole after separating the washing discharge hose. Closing stage; By slowly opening the first water sump valve, the air remaining inside the water pipe is discharged to the outside while drinking water is gradually supplied to the water pipe. By opening each individual water hydrant, water is resumed to each customer in the washing section and the second water sump valve is opened. A through-hole is formed in the water pipe due to the feature that includes the water supply resumption area cleaning step of opening and resuming water supply as a whole, the cleaning discharge hose and floating nozzle are introduced through the through-hole, and the water is sprayed through the spray hole of the floating nozzle. This removes foreign substances or sludge stuck to the inside of the water pipe and protects the floating nozzle with a protective net, which reduces maintenance costs and time, improves cleaning efficiency, and recycles the water used for cleaning. There is.

Description

How to clean the water supply pipe using the floating nozzle connected to the end of the washing hose}

The present invention relates to a method of cleaning a water pipe using a floating nozzle connected to the end of a cleaning discharge hose. More specifically, a saddle hydrant is installed in a water pipe to form a through hole, and the cleaning discharge hose and floating nozzle are connected through the through hole. The cleaning water sprayed through the spray hole of the floating nozzle removes foreign substances such as slime, sludge, or sludge stuck to the inside of the water pipe, and protects the floating nozzle with a protective net, thereby reducing maintenance costs. This relates to a water pipe cleaning method using a floating nozzle connected to the end of the cleaning discharge hose, which reduces cleaning time and improves cleaning efficiency.

In general, water supply pipes are buried underground by connecting multiple water supply pipes, and water is moved through the pipes to be supplied to each home or facility.

However, as time passes, rust occurs in the pipe itself, and metallic nutrients and minerals such as copper, iron, and zinc dissolved in the water react with chlorine, a disinfectant, and oxygen dissolved in the water. As foreign substances and sludge are deposited, the inner diameter of the water pipe gradually becomes smaller, causing problems in the movement of water and lowering the quality of supplied water.

Due to problems such as clogging of water pipes due to sludge or accumulation of foreign substances inside the conventional water pipes, reduction in the capacity of the water being transported, or contamination, water pipes were periodically separated and replaced with other water pipes.

However, the conventional method of replacing water pipes has the problem of requiring a lot of construction cost and time because the water pipes must be replaced after excavating along the part where the water pipes are buried, and the cost of replacing the water pipes is also relatively high. Problems remain.

On the other hand, in cases where the water pipe does not need to be replaced, set up a washing section, block one end, and continue supplying water for a long period of time, about 1 hour or more, using an outlet or fire hydrant to divert drinking water to the sewer, etc. Washing by discharging had the problem of wasting valuable resources.

The foregoing content refers to the background technology in the technical field to which the present invention pertains, and does not imply prior art.

Republic of Korea Patent Registration No. 10-0847514 (July 15, 2008) ‘Internal pipe cleaning device and cleaning method of water supply pipe’

The present invention, which was developed to solve the problems of the prior art as described above, forms a through hole in a water pipe, inserts a cleaning discharge hose and a floating nozzle through the through hole, and injects water into the water pipe through the spray hole of the floating nozzle. Provides a water pipe cleaning method using a floating nozzle connected to the end of the cleaning discharge hose, which removes foreign substances or sludge stuck to the inside, protects the floating nozzle with a protective net, reduces maintenance costs and time, and improves cleaning efficiency. is one of the goals pursued.

The water pipe cleaning method using a floating nozzle connected to the end of the cleaning discharge hose of the present invention, devised to achieve the above object, is a water pipe cleaning method designed to remove foreign substances inside the water pipe buried in the ground, and the water pipe A water pipe network connection analysis step of selecting and determining a washing section by analyzing the installed network connection status and installation locations of manholes and fire hydrants using the relevant drawings and on-site verification; A water cut promotion water pipe valve blocking step of pre-promoting water cutoff to each customer in the washing section determined in the analysis step and blocking the first water control valve, the second water control valve, and each individual water hydrant valve installed in the washing section; The first saddle fountain hydrant is installed at the stage following the forward direction of the first water valve in the water supply promotion water pipe valve blocking step, and the second saddle fountain hydrant is installed at the forward end of the second water valve, respectively, and the first through hole and the second 2. Internal photography step of water pipe through-hole formation in which each through-hole is drilled and the inside is photographed with a pipe endoscope; One end of the cleaning discharge hose is connected and installed in a watertight state to the first and second through holes in the water pipe through hole formation step, and the supply and discharge pump connected to the other end is driven to pump out the remaining water inside the water pipe. A water discharge step of discharging water from a water pipe to the outside; A washing water recycling facility installation step of installing a filtration facility system that separates and removes foreign substances from the water used for cleaning the water pipe and purifies it by chemical disinfection, etc.; A water pipe cleaning discharge hose input step of installing and inserting a cleaning discharge hose and a floating nozzle into one or more than one selected from the first and second through holes, respectively, in a watertight state; A water pipe cleaning step of removing and washing foreign substances stuck to the inner surface of the water pipe with water sprayed through the spray hole of the floating nozzle; In the water pipe cleaning step, the inside of the water pipe that has been completely cleaned is photographed with an endoscope to visually check the cleaning state, and a water quality test step of photographing the water pipe to determine whether it meets drinking water standards; The remaining treatment water or washing water containing foreign substances is discharged to the outside of the water pipe 100 through the washing discharge hose 20 connected to the second through hole of the water pipe, and after separating the washing discharge hose, each through hole is discharged. Closing and finishing the treatment water discharge through-hole; By gradually opening the first water valve of the water pipe to discharge the air remaining inside the water pipe to the outside, drinking water is gradually supplied to the water pipe, and by opening each individual water hydrant to resume water supply to each customer in the washing section. A water supply resumption area clearing step of opening the second water control valve and resuming water supply as a whole; may include.

The washing device includes a washing discharge hose installed in a watertight state in a through hole formed in the water pipe and introducing water for washing; A floating nozzle connected to one end of the cleaning discharge hose installed in the water pipe and spraying the inflow water; a supply discharge pump connected to the other end of the cleaning discharge hose and supplying water to clean the water pipe; It includes: a nozzle housing in which the floating nozzle is connected and fitted to one end of the cleaning discharge hose and has a receiving space for accommodating water flowing into the cleaning discharge hose; a plurality of injection holes communicating with the receiving space and formed on an outer surface of the nozzle housing, and spraying water of the receiving space; A plurality of connection shafts with one end connected to a portion of the outer surface of the nozzle housing and fixedly installed; a protective net partially connected to and fixed to the other end of the connection shaft and disposed surrounding the outside of the nozzle housing; It may be configured to remove and clean foreign substances stuck to the inner surface of the water pipe by using water sprayed through the spray hole.

The present invention forms a through hole in a water pipe, inserts a cleaning discharge hose and a floating nozzle through the through hole, removes foreign substances or sludge stuck to the inner surface of the water pipe by the water sprayed through the spray hole of the floating nozzle, and attaches to the protective net. By protecting the floating nozzle, the cost and time required for maintenance are reduced and cleaning efficiency is improved.

1 is a flow chart showing a water pipe cleaning method using a floating nozzle connected to the end of a cleaning discharge hose according to the present invention;
Figure 2 is a conceptual diagram showing a water pipe cleaning method using a floating nozzle connected to the end of the cleaning discharge hose according to the present invention;
Figure 3 is a front view showing the floating nozzle of the water pipe cleaning method using the floating nozzle connected to the end of the cleaning discharge hose according to the present invention;
Figure 4 is a partial cross-sectional view showing the floating nozzle of the water pipe cleaning method using the floating nozzle connected to the end of the cleaning discharge hose according to the present invention.
Figure 5 is a cross-sectional view showing the floating nozzle of the water pipe cleaning method using the floating nozzle connected to the end of the cleaning discharge hose according to the present invention;
and
Figure 6 is a state of use showing the floating nozzle in the water pipe cleaning method using the floating nozzle connected to the end of the cleaning discharge hose according to the present invention.

Since the description of the present invention is only an example for structural or functional explanation, the scope of the present invention should not be construed as limited by the examples described in the text. In other words, since the embodiments can be modified in various ways and can have various forms, the scope of rights of the present invention should be understood to include equivalents that can realize the technical idea.

Meanwhile, the meaning of the terms described in the present invention should be understood as follows.

Terms such as “first” and “second” are used to distinguish one component from another component, and the scope of rights should not be limited by these terms. For example, a first component may be named a second component, and similarly, the second component may also be named a first component.

When a component is said to be “connected” to another component, it should be understood that it may be directly connected to the other component, but that other components may also exist in between. On the other hand, when a component is referred to as being “directly connected” to another component, it should be understood that there are no other components in between. Meanwhile, other expressions that describe the relationship between components, such as "between" and "immediately between" or "neighboring" and "directly neighboring" should be interpreted similarly.

Singular expressions should be understood to include plural expressions unless the context clearly indicates otherwise, and terms such as “comprise” or “have” refer to implemented features, numbers, steps, operations, components, parts, or them. It is intended to specify the existence of a combination, and should be understood as not excluding in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

For each step, identification codes (e.g., a, b, c, etc.) are used for convenience of explanation. The identification codes do not explain the order of each step, and each step clearly follows a specific order in context. Unless specified, events may occur differently from the specified order. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the opposite order.

All terms used herein, unless otherwise defined, have the same meaning as commonly understood by a person of ordinary skill in the field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as consistent with the meaning they have in the context of the related technology, and cannot be interpreted as having an ideal or excessively formal meaning unless clearly defined in the present invention.

Figure 1 is a flow chart showing a water pipe cleaning method using a floating nozzle connected to the end of a cleaning discharge hose according to the present invention, and Figure 2 is a conceptual diagram showing a water pipe cleaning method using a floating nozzle connected to the end of a cleaning discharge hose according to the present invention. 3 is a front view showing the floating nozzle of the water pipe cleaning method using a floating nozzle connected to the end of the cleaning discharge hose according to the present invention, and Figure 4 is a water pipe using a floating nozzle connected to the end of the cleaning discharge hose according to the present invention. It is a partial cross-sectional view showing the floating nozzle of the pipe cleaning method, and Figure 5 is a cross-sectional view showing the floating nozzle of the water pipe cleaning method using a floating nozzle connected to the end of the cleaning discharge hose according to the present invention, and Figure 6 is a washing discharge discharge according to the present invention. This is a diagram showing the use of the floating nozzle in the water pipe cleaning method using the floating nozzle connected to the end of the hose.

Hereinafter, the present invention according to an embodiment will be described in detail with reference to all the attached drawings. The water pipe cleaning method using a floating nozzle connected to the end of the cleaning discharge hose (hereinafter referred to as the water pipe cleaning method for convenience of explanation) is A water pipe cleaning method designed to remove foreign substances including sludge, slime, scale, sludge, etc. deposited in the cleaning section inside a water pipe 100 buried underground or underground. This water pipe cleaning method is used in the water pipe network. Connection analysis stage (S1), water shutoff promotion water pipe valve blocking stage (S2), water pipe through-hole formation internal photography stage (S3), water pipe water discharge stage (S4), washing water recycling facility installation stage (S5), water pipe It includes the cleaning discharge hose insertion step (S6), the water pipe cleaning step (S7), the water pipe photographing water quality inspection step (S8), the treatment water discharge through-hole closing step (S9), and the water supply resumption area cleanup step (S10). .

The water used to remove foreign substances, including sludge, slime, scale, and sludge, deposited (deposited) inside the water pipe 100 is called water or washing water. Water and washing water have the same meaning and are optionally described to suit the context. I decided to do it.

Water washing to remove foreign substances inside the water pipe 100 is also called flushing.

The washing discharge hose is a hose that performs both the function of a washing hose, which transports water (washing water) flowing in from the outside for cleaning, and a discharge hose function, which discharges (transports) used water to the outside.

In the water pipe network connection analysis step (S1), the network connection status where the water pipe 100 is installed and the installation location of the manhole 110 and fire hydrant are analyzed using the corresponding drawing and field verification to select and determine the washing section. .

The water shutoff promotion water pipe valve blocking step (S2) promotes in advance that water supply will be cut off for a set time or period to each customer in the vicinity included in the determined washing section, and the water pipes 100 provided in the buried manholes 110 are shut off. This is the step of blocking the first water valve 201 and the second water valve 202 installed in the washing section, and each individual water hydrant valve connected to the washing section.

In the water shutoff promotion water pipe valve blocking step (S2), the water cutoff plan is notified in advance to the relevant customer located in the washing section of the water pipe 100 to be cleaned, and a water supply is provided (installed or provided) at both ends of the set washing section. 1 The water sump valve 201, the 2nd water sump valve 202, and each individual water hydrant valve installed in the washing section and connected to each customer are all blocked so that water (washing water) flows into each customer in the washing section of the water pipe 100. Prevents unnecessary movement of treatment water used for washing or washing.

In other words, the process of discontinuing water to the relevant surrounding customers is first carried out, then individual water hydrants (customer inlet valves) are blocked, and then the first water sump valve 201 and the second water spool valve 202 are blocked. Meanwhile, the water remaining inside the water pipe 100 of the washing section is discharged. If a drainage valve is already installed, the drainage valve is used. If a fire hydrant is already installed, the water hydrant is used. If a drain or fire hydrant is not installed, forced discharge or forced water discharge is required.

The internal photography step (S3) of forming a water pipe penetration hole is a first saddle fountain ( 301) is installed, and the second saddle fountain hydrant 302 is installed at the forward end of the second water valve 202 installed at the other end of the washing section, respectively, at the location of the first saddle fountain hydrant 301. This is the step of drilling or forming a first through hole and drilling or forming a second through hole at the location of the second saddle fountain 302, and photographing the inside of the set washing section through an endoscope, etc.

In the water pipe penetration hole formation internal photography step (S3), the first and second water pipe holes are formed at the positions of the first saddle fountain 301 and the second saddle fountain 302 of the water pipe 100 using a drill or perforator. Each through hole is drilled or formed. Here, if the manhole 100 is formed at the location where the second saddle fountain 302 is installed or is to be installed, the manhole 100 is used, but if the manhole 100 is not formed, the road surface at the location is excavated and ' A 'rear end work tool' is installed to expose the water pipe 100, the second water valve 202 and the second saddle fountain 302 are installed, and the second through hole can be drilled or formed.

It is quite natural that the first and second through holes drilled in this way are additionally installed or equipped with corresponding equipment to enable opening and closing. An endoscope is inserted through the first and second perforated through holes, and the inside of the water pipe 100 is photographed to visually confirm or determine the condition.

In the water pipe water discharge step (S4), one end of the washing discharge hose 20 is connected or installed in a watertight state to the first and second through holes formed in the washing section of the water pipe 100, respectively, and then the washing discharge is performed. This is the step of driving the supply and discharge pump 40 connected to the other end of the hose 20 to pump out the remaining water inside the water pipe 100 and discharge it to the outside.

The supply and discharge pump is a pump that performs both the supply pump function of introducing water (washing water) into the inside of the water pipe 100 from the outside and the discharge pump function of discharging used water to the outside of the water pipe 100.

In the water pipe water discharge step (S4), the water supply water remaining inside the water pipe 100 is discharged by driving the supply and discharge pump 40 before cleaning the washing section. It is highly desirable to take steps to ensure that the water discharged here is recycled.

The washing water recycling facility installation step (S5) is a step to prevent waste of energy by recycling the water used for washing, and a filtration facility system (S5) that purifies the water used for washing and discharged by separating and removing foreign substances and chemical disinfection. 50) to be installed and recycled. The functions of this filtration system 50 are generally known.

In the water pipe cleaning discharge hose insertion step (S6), the cleaning discharge hose 20 of the cleaning device 10 and the cleaning discharge are connected to one or more than one selected from the first and second through holes of the water pipe 100. This is the step of installing and inserting the floating nozzle 30 installed at one end of the hose 20 in a watertight state.

In the water pipe cleaning discharge hose input step (S6), the cleaning discharge hose 20 constituting the cleaning device 10 is connected to the first through hole of the first saddle fountain 301 in a watertight state, and the cleaning discharge hose is The floating nozzle (30) connected to one end of (20) is introduced into the water pipe (100) through the first through hole.

If necessary, the second through hole may be used instead of the first through hole, but for ease of explanation and understanding, it is described as being connected to and inserted into the first through hole.

For reference, in the attached drawings, the floating nozzle 30 is shown relatively larger than each saddle fountain or through hole, but is shown large to make it easier for those skilled in the art to understand.

The cleaning device 10 is configured to be connected to a through hole formed in the water pipe 100 or installed in a watertight state. The washing device 10 includes a washing discharge hose 20 that introduces (guides) water to be washed (washing water), and a pipe connected to one end of the washing discharge hose 20 introduced into the water supply pipe 100. It is comprised of a floating nozzle 30 that sprays water or cleaning water, and a supply and discharge pump 40 that is connected to the other end of the cleaning discharge hose 20 and supplies water to clean the water pipe 100.

The floating nozzle 30 connected to the cleaning discharge hose 20 is fitted in a watertight state at one end of the cleaning discharge hose 20 and then has a fastening structure formed at the end to be screwed or fixedly installed, and the cleaning discharge hose 20 A tubular nozzle housing 31 with a receiving space formed to accommodate the water (washing water) delivered from (20), and a tube-shaped nozzle housing 31 formed on the outer surface of the nozzle housing 31 to communicate with the receiving space, forming the water pipe 100. A plurality of injection holes 32 that spray water (washing water) inside, a plurality of connection shafts 33 whose ends are welded and fixed to the nozzle housing 31, and other ends of the connection shafts 33 It is welded and fixed to and includes a protection net 34 that surrounds the nozzle housing 31 and is arranged to protect the nozzle housing 31 from external shock.

In the water pipe cleaning step (S7), foreign substances adhering to the inner surface of the water pipe 100 are removed and cleaned with water (washing water) sprayed through the spray hole 32 of the floating nozzle 30.

In addition, the floating nozzle 30 floats inside the water pipe 100 by the water pressure of the water sprayed through the injection hole 32 and is located in the inner center of the water pipe 100. (100) Foreign matter stuck (sedimented, deposited) on the inside is removed and washed.

In the water pipe cleaning step (S7), the worker continuously inserts the cleaning discharge hose 20 into the through hole and moves the floating nozzle 30 in a floating state along the cleaning section of the water pipe 100. do.

A ring (LK) is formed at the blocked end of the floating nozzle (30), a rope is connected to the ring (LK), and the rope is drawn through the second through hole in the direction of travel, and then the rope is lifted or pulled by external force. It is quite natural that the floating nozzle 30 can move smoothly in the horizontal direction along the longitudinal direction inside the water pipe 100.

Meanwhile, the inside of the water pipe 100 is cleaned by pulling the floating nozzle 30 connected to the cleaning discharge hose 20 using a rope connected to the ring LK, while maintaining the balance of the floating nozzle 30. Be careful not to get caught in foreign substances.

In addition, the protective net 34 prevents shock from being applied to the nozzle housing 31 and prevents the injection hole 32 from being blocked by direct contact with foreign substances.

In addition, in a state where water is not sprayed through the spray hole 32, a rope connected to the washing discharge hose 20 or the ring LK is used to cause friction between the protective net 34 and the inner surface of the water pipe 100. By doing so, it is also possible to increase the efficiency of removing or separating foreign substances deposited inside the water pipe 100.

Here, the injection path through which the washing water is discharged from the injection hole 32 is curved, and the water sprayed through the injection hole 32 forms a vortex in the form of a vortex, thereby increasing the removal efficiency of foreign substances and cleaning efficiency. It is desirable to do so. At this time, since the floating nozzle 30 can rotate, it is natural that it can be configured to rotate in a watertight state by providing a well-known mechanical sealing structure at the connection portion with the cleaning discharge hose 20.

In addition, a spiral vortex groove is further formed along the longitudinal direction of the injection path on the inner surface of the injection path of the injection hole 32, so that the cleaning water sprayed through the injection hole 32 is guided to the vortex groove and forms a vortex. It is desirable to discharge it while rotating to increase the removal efficiency and cleaning efficiency of foreign substances stuck to water and sewage pipes.

In the water pipe cleaning step (S7), water is supplied to the cleaning discharge hose 20 by the supply and discharge pump 40 of the cleaning device 10 so that water is sprayed through the injection hole 32 of the floating nozzle 30. By doing so, foreign substances stuck to the inside of the water pipe 100 are removed and cleaned.

The water sprayed by the floating nozzle 30 located inside the water pipe 100 removes and separates foreign substances from the inner wall of the water pipe 100 and cleans them, and the foreign substances removed by washing and the corresponding water are returned to the water supply. It is discharged to the outside of the pipe (100).

Here, the floating nozzle 30 is fixed by screwing or connecting one end of the traction rope to the ring LK provided at the other end to which the cleaning discharge hose 20 is not connected, thereby pulling the floating nozzle in the other direction, thus washing. It can facilitate movement in the section, and also, if the floating nozzle 30 is separated from the washing discharge hose 20 during the cleaning process due to various reasons, the floating nozzle 30 is moved to connect the water pipe 100. ) can also be easily recovered from the inside.

In addition, by further attaching and fixing a buoyancy material made of synthetic resin to the outer surface or a portion of the outer peripheral surface of the floating nozzle 30, when the water sprayed for cleaning gradually fills the water supply pipe 100, the buoyancy material floats the floating nozzle 30. It is desirable to spray water while the nozzle 30 is floating on water.

In addition, one end of elastic pins made of an elastic synthetic resin material is further attached to the outer surface of the protective net 34, so that the elastic pins rub against foreign substances attached to the inner surface of the water pipe 100, thereby improving the removal efficiency of foreign substances and cleaning. It is desirable to increase efficiency.

In the water pipe photographing water quality inspection step (S8), the inside of the cleaned water pipe 100 is photographed with a pipe endoscope, etc. to visually check the cleaning state, and the water quality of the water flowing inside the cleaned water pipe 100 is inspected. This is the step to check whether it meets the drinking water standard of 0.5 NTU or less.

In other words, when cleaning is completed, equipment such as a well-known pipe endoscope is inserted into the water pipe 100 to check the cleaned state, and the cleaning is judged to be insufficient, or the water quality test using the relevant equipment determines that the water quality is 0.5, which is the permitted standard. If it is determined that it has not safely reached within NTU, the water pipe cleaning step (S7) is repeated until the water quality reaches the acceptable standard of 0.5 NTU or less, which is the drinking water standard.

That is, in the water pipe photographing water quality inspection step (S8), the inside of the cleaned water pipe 100 is visually checked, the water quality is analyzed again with the corresponding mechanical device, and if it is not included in the drinking water acceptance standard value, the water pipe cleaning step ( Repeat S7) and check whether it falls within 0.5 NTU of the drinking water acceptable standard using the relevant measuring equipment (device).

In the treatment water discharge through-hole closing step (S9), the remaining treatment water or washing water containing foreign substances is discharged to the outside of the water pipe 100 through the washing discharge hose 20 installed and connected to the second through hole of the water pipe 100. This is the step of discharging, separating the cleaning discharge hose (20), and then closing each through hole for finishing.

That is, with the end of the washing discharge hose 20 connected to the water pipe 100 in a watertight state, the supply and discharge pump 40 is driven to discharge water (washing water) containing foreign substances to the outside. At this time, it is desirable to supply the discharged water to the filtration system 50, filter it, and then recycle it or discard it if it is determined that recycling is difficult.

When the external discharge of the remaining treatment water or washing water from the water pipe 100 is completed, the washing discharge hose 20 and the floating nozzle ( After separating and removing 30), block the saddle fountain water valves provided in the first and second saddle fountains (301) and 302 respectively to prevent water leakage, or prevent water leakage through the first through hole and the second through hole. It is closed or wrapped with a separate finishing cover and attached or welded in a fixed state to maintain watertight airtightness.

The water supply resumption cleanup step (S10) is to start the water supply to re-supply drinking water. The first water valve 201 of the water pipe 100 is gradually opened to allow the air remaining inside the water pipe 100 to be released to the outside. While discharging, drinking water is gradually supplied to the water pipe 100, and the individual water hydrants connected to each customer in the washing section are opened to supply water to each customer again, and the second water water valve 202 is opened to restore water supply overall. Let it be lost.

At this time, if a rear-end work tool is installed, the necessary finishing and surrounding areas of the relevant road surface are completed and the surrounding area is cleaned.

The present invention forms a through hole in a water pipe, inserts a cleaning discharge hose and a floating nozzle through the through hole, and removes foreign substances or sludge stuck to the inner surface of the water pipe by water sprayed through the spray hole of the floating nozzle. By protecting the floating nozzle with a protective net, it is possible to reduce maintenance costs and time, improve cleaning efficiency, and recycle the water used for cleaning. When setting the pipe to the washing section, there is an advantage in that it is cleaned so that drinking water that meets the acceptable standards is supplied for a time ranging from about 1 hour 20 minutes to 1 hour 30 minutes.

Although the present invention has been described in detail so far, it is clear that the embodiments mentioned in the process are only illustrative and not limiting, and that the present invention is limited to the technical idea or field of the present invention provided by the following patent claims. Changes in components to the extent that they can be handled equally, within the scope of the above, will fall within the scope of the present invention.

10: Washing device 20: Washing discharge hose
30: floating nozzle 31: nozzle housing
32: injection hole 33: connection shaft
34: protection net 40: supply discharge pump
50: Filtration equipment system 100: Water pipe
S1: Water pipe valve blocking step S2: Water pipe penetration hole forming step
S3: Water pipe discharge step S4: Water pipe cleaning discharge hose input step
S5: Water pipe cleaning step S6: Water pipe cleaning discharge hose separation step
S7: Processing water discharge step S8: Water pipe penetration hole finishing step

Claims (2)

A water pipe cleaning method designed to remove foreign substances inside water pipes buried in the ground,
A water pipe network connection analysis step of selecting and determining a washing section by analyzing the network connection state in which the water pipes are buried and the installation locations of manholes and fire hydrants using relevant drawings and on-site verification;
A water cut promotion water pipe valve blocking step of pre-promoting water cutoff to each customer in the washing section determined in the analysis step and blocking the first water control valve, the second water control valve, and each individual water hydrant valve installed in the washing section;
The first saddle fountain hydrant is installed at the stage following the forward direction of the first water valve in the water supply promotion water pipe valve blocking step, and the second saddle fountain hydrant is installed at the forward end of the second water valve, and the first through hole and the second A water pipe through-hole forming internal photography step of drilling each through hole and inserting an endoscope inside to take pictures;
One end of the cleaning discharge hose is connected and installed in a watertight state to the first and second through holes in the water pipe through hole formation step, and the supply and discharge pump connected to the other end is driven to pump out the remaining water inside the water pipe. A water discharge step of discharging water from a water pipe to the outside;
A washing water recycling facility installation step of installing a filtration facility system that separates and removes foreign substances from the water used for cleaning the water pipe and purifies it by chemical disinfection, etc.;
A water pipe cleaning discharge hose input step of installing and inserting a cleaning discharge hose and a floating nozzle into one or more than one selected from the first and second through holes, respectively, in a watertight state;
A water pipe cleaning step of removing and washing foreign substances stuck to the inner surface of the water pipe with water sprayed through the spray hole of the floating nozzle;
In the water pipe cleaning step, the inside of the water pipe that has been completely cleaned is photographed with an endoscope to visually check the cleaning state, and a water quality test step of photographing the water pipe to determine whether it meets drinking water standards;
A process of discharging the remaining treatment water or washing water containing foreign substances to the outside of the water pipe through a washing discharge hose connected to the second through hole of the water pipe, separating the washing discharge hose, and then closing each through hole for finishing treatment. Water discharge through-hole finishing step;
By gradually opening the first water valve of the water pipe to discharge the air remaining inside the water pipe to the outside, drinking water is gradually supplied to the water pipe, and by opening each individual water hydrant to resume water supply to each customer in the washing section. A water supply resumption area clearing step of opening the second water control valve and resuming water supply as a whole; In a water pipe cleaning method using a floating nozzle connected to the end of a cleaning discharge hose comprising,
The washing device
a washing discharge hose installed in a watertight state in a through hole formed in the water pipe and introducing water for washing;
A floating nozzle connected to one end of the cleaning discharge hose installed in the water pipe and spraying the inflow water;
a supply discharge pump connected to the other end of the cleaning discharge hose and supplying water to clean the water pipe; It includes,
The floating nozzle is
a nozzle housing fitted and connected to one end of the cleaning discharge hose and having a receiving space for receiving water flowing into the cleaning discharge hose;
a plurality of injection holes communicating with the receiving space and formed on an outer surface of the nozzle housing, and spraying water of the receiving space;
A plurality of connection shafts with one end connected to a portion of the outer surface of the nozzle housing and fixedly installed;
a protective net partially connected to and fixed to the other end of the connection shaft and disposed surrounding the outside of the nozzle housing; It consists of
It is configured to remove and clean foreign substances stuck to the inner surface of the water pipe by using water sprayed through the spray hole,
One end of elastic pins made of an elastic synthetic resin material is further attached to the outer surface of the protective net so that the elastic pins rub against foreign substances adhering to the inner surface of the water pipe to increase the removal efficiency and cleaning efficiency of foreign substances. A method of cleaning water pipes using a floating nozzle connected to the end of the cleaning discharge hose. delete