KR100855029B1 - Valve and method for cleaning pipe - Google Patents

Abstract

A valve and a method for cleaning a pipe are provided to clean the pipe without disassembling the pipe by feeding a cleaning agent to the valve. A valve comprises a body(12) having first and second passages(30,32), a ball(26) having a perforation hole(34), a control unit(18) for controlling the fluid flow by rotating the ball, a guide pipe(20) extending from the second passage, a cleaning agent input port(22) formed in the guide pipe, and a stopper(23) formed at an end of the guide pipe to restrict the movement of a pallet. A hollow section is formed in the body and the ball is accommodated in the hollow section of the body. A drain section is formed in the body to discharge residues remaining in the hollow section. A pallet input port is formed in the body so that the pallet is inserted into the body.

Description

Valve and method for cleaning pipe

1 is a front view of a valve according to an embodiment of the present invention.

2 is a cross-sectional view of a valve according to an embodiment of the present invention.

3 is a right side view of the valve according to an embodiment of the present invention.

Figures 4a and 4b is a flow chart showing a pipeline cleaning method according to an embodiment of the present invention.

Figure 5 is a flow chart showing a pipeline cleaning method according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

12: body 14: pellet inlet

16: pellet inlet plug 18: operation unit

20: guide tube 22: cleaning source inlet

24: drain portion 26: ball

28: cleaning source inlet plug 30: first passage

32: second passage 34: through hole

36: pipeline 38: scale

40: pellet

The present invention relates to a valve and pipeline cleaning method.

Pipes that transport fluids such as air-conditioning or water supply and drainage in buildings and apartments, and fluids used in industrial plant processes, can be used for a long period of time after installation. Erosion products are present as these deposits occur or the pipeline oxidizes within the pipeline.

The scale of such corrosion products or the slime of solids, which are formed on the inner wall of the pipeline, gradually increases in thickness or increases in volume, thereby obstructing the flow of the fluid in the pipeline. The pressure drops, leading to poor water discharge, and scale or slime melts into the fluid flowing in the conduit to contaminate the fluid. In particular, the fluid used in the process of the industrial plant, the scale increases rapidly depending on the characteristics of the operation often occurs often stops. Therefore, it is necessary to periodically clean the inside of the conduit to remove scale and slime to increase the water extraction efficiency and to prevent contamination of the fluid.

The pipe cleaning method according to the prior art has a problem that the cleaning procedure is complicated, such as dismantling the pipe for cleaning the pipe contaminated by scale or slime and then connecting the pipe again. In particular, in the case of washing the water pipe, there is a problem that the supply of water supply is stopped to the water user until the pipe washing is completed due to the dismantling of the pipe.

In addition, there is a problem that a high cost for the periodic cleaning of the pipe due to this complex cleaning procedure.

The present invention is to provide a separate cleaning source to the valve to not only dismantle the pipe when washing the pipe, but also to provide a valve and the pipe cleaning method that can be cleaned by the partial water.

In addition, by providing a cleaning source corresponding to the type of scale or slime to provide a method for cleaning valves and pipes to increase the cleaning efficiency.

According to one aspect of the invention, the first passage and the second passage is connected to the conduit is formed, the body is formed inside the hollow portion, and the ball is formed rotatably received in the hollow portion, the through-hole fluid communication And, the valve is provided in the operation unit for opening and closing the flow of the fluid by rotating the ball, the guide tube and the guide tube extending in the longitudinal direction in the second passage, the cleaning source inlet through which the cleaning source is introduced.

The valve according to the present invention may further include a drain portion formed in the body to discharge the residue remaining in the hollow portion.

In addition, the valve may further include a pellet inlet is formed so that the pellet is inserted into the body. In this case, the pellet inlet can be rotated to form the ball corresponding to the position of the through hole in the closed state of the flow of fluid.

In addition, it may further include a cleaning source supply unit for supplying the cleaning source is coupled to the cleaning source inlet.

The cleaning source may be at least one selected from the group consisting of a high pressure gas, a gas shock wave and a cleaning liquid.

The inner diameter (內徑) of the guide tube may be formed larger than the inner diameter of the pipe, the stepped end may be formed to limit the movement of the pellet at the end of the guide tube.

In addition, according to another aspect of the present invention, the first passage and the second passage is connected to the body is formed, and the guide tube and the guide tube extending in the longitudinal direction from the second passage is formed, the cleaning source in the pipeline A method of cleaning a conduit using a valve including a cleaning source inlet for supplying, comprising: (a) closing the valve to shut off the flow of fluid; and (b) supplying a cleaning source through the cleaning source inlet. A duct cleaning method is provided.

A pellet inlet is formed in the body into which the pellet is inserted, and between step (a) and step (b), (c) inserting the pellet into the valve through the pellet inlet (d) by opening the valve to open the flow of fluid The method may further include moving the pellet to the end of the guide tube.

Between step (c) and step (d), it may be further provided that (e) closes the valve to again shut off the flow of fluid.

The cleaning source may be at least one selected from the group consisting of a high pressure gas, an air shock wave, and a cleaning liquid.

Other aspects, features, and advantages other than those described above will become apparent from the following drawings, claims, and detailed description of the invention.

Hereinafter, preferred embodiments of the valve and pipeline cleaning method according to the present invention will be described in detail with reference to the accompanying drawings, in the description with reference to the accompanying drawings, the same or corresponding components are given the same reference numerals and Duplicate explanations will be omitted.

1 is a front view of a valve according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of a valve according to an embodiment of the present invention, and FIG. 3 is a right side view of the valve according to an embodiment of the present invention. 1 to 3, the body 12, the pellet inlet 14, the pellet inlet stopper 16, the operation unit 18, the guide tube 20, the cleaning source inlet 22, and the drain 24. , Ball 26, cleaning source inlet stopper 28, first passageway 30, second passageway 32, and through hole 34 are shown.

The valve according to the present embodiment is formed with a first passageway 30 and a second passageway 32 to which a conduit is connected, the body 12 having a hollow portion formed therein, and rotatably housed in a hollow portion, A ball 26 having a through hole 34 through which air is communicated, an operation unit 18 for opening and closing a flow of fluid by rotating the ball 26, and a guide tube extending in a longitudinal direction from the second passage 32 ( 20) and the cleaning source inlet 22 formed in the guide tube 20 is an essential component. On the other hand, the pellet inlet 14 is formed to be inserted into the pellet (pellet) in the body 12 in order to insert the pellet to clean the conduit.

The valve according to the present embodiment is coupled to the pipeline in the middle of the pipeline, not only to control the communication of the fluid flowing from the pipeline, but also to dismantle the pipe by inputting the cleaning source through the cleaning source inlet 22 when cleaning the pipeline The pipeline can be cleaned.

In the first passage 30, fluid may be introduced from the conduit, and fluid introduced from the first passage 30 may flow out through the second passage 32. On the contrary, the fluid may flow from the second passage 32 and the fluid flows out through the first passage 30. Hereinafter, only the case where the fluid flows from the first passage 30 and the fluid flows through the second passage 32 will be described.

A spherical hollow portion is formed inside the body 12, and a ball 26 having a through hole 34 is rotatably received in the hollow portion, and the ball 26 is rotated by the operation unit 18 to first rotate the ball 26. Open and close the flow of fluid from the passage 30 to the second passage 32. That is, when some or all of the first passage 30 and the second passage 32 communicate with each other by the through hole 34 formed in the ball 26 as the ball 26 rotates, the fluid passes through the through hole 34. If the first passage 30 and the second passage 32 is not in communication by the through hole 34 to block the movement of the fluid.

The operation unit 18 may be coupled to the ball 26 to adjust the rotation of the ball 26. In this embodiment, a rod-shaped lever is coupled with the ball 26 to adjust the rotation of the ball 26, but may be automatically coupled with a motor to adjust the rotation of the ball 26, a circular wheel It is also possible to rotate the ball 26 using.

The guide tube 20 is a tube extending in the longitudinal direction of the second passage 32 from the second passage 32, and a washing source inlet 22 through which the washing source is input is formed in the guide tube 20.

The valve according to the present embodiment may be used to clean the pipeline by running the pellets in the pipeline as well as by the cleaning source. The method for cleaning the pipeline using pellets is more than the internal diameter of the pipeline to clean the outer diameter of the pellet. As the pellets are made larger and inserted into the pipeline with elastic compression, the pellets are advanced by the pressure of the fluid flowing in the pipeline to clean the pipeline.If the pressure of the fluid flowing in the pipeline does not reach the pressure for advancing the pellet, the pipeline is opened. It cannot be cleaned efficiently. Therefore, in the present embodiment, the pellet 40 is advanced to supply a separate cleaning source through the cleaning source inlet 22 to advance the pellet 40, and the pellet is advanced by the pressure of the cleaning source supplied through the cleaning source inlet 22. It was to be able to wash efficiently. In this case, in order to advance the pellets 40 by a separate cleaning source, the pellets should be located in front of the cleaning source inlet 22 (with respect to the advancing direction of the pellets). To this end, first, the pellets must be moved to the front of the cleaning source inlet 22, that is, the end of the guide tube 20 by the pressure of the fluid flowing in the pipe line, so that the pellets can be easily moved to the end of the guide tube 20. The inner diameter of the pipe 20 can be made larger than the inner diameter of the pipe.

Pellets have a hemispherical shape with a rounded bullet shape or a spherical shape, made of a high elastic sponge or urethane foam, or a thin layer of epoxy-based elastomer resin applied to the outer surface of the foam resin. Has a structure. The outer diameter of the pellet is made larger than the inner diameter of the pipeline so that the pellet is elastically compressed and inserted into the pipeline to pressurize it to remove scale or slime of the inner wall of the pipeline.

Meanwhile, the step 23 may be formed at the end of the guide tube 20 to limit the movement of the pellets. When the pellet is advanced by the pressure of the fluid flowing in the pipeline, the pellet may pass through the guide tube 20 to be introduced into the pipeline, in which case the inner wall of the pipeline through which the pellet has passed to run the pellet by a separate cleaning source Since the degree of cleaning may be lower than that of washing the conduit, the step 23 may be formed so that the pellet is positioned in the guide tube 20 so that the pellet does not flow into the conduit. In this case, the size of the step 23 is that the pellet cannot pass through the step 23 of the guide tube 20 by the pressure flowing in the pipe, and the step 23 of the guide tube 20 by a separate cleaning source. It is enough to pass).

The valve according to the present embodiment forms a cleaning source inlet 22 on the outer surface of the guide tube 20 to close the valve to block the flow of fluid, and then insert the cleaning source into the conduit to clean the conduit. The cleaning source inlet 22 is formed on the outer surface of the guide tube 20 to provide a separate cleaning source through which the cleaning source inlet stopper 28 is provided to supply the cleaning source to clean the pipe. If the cleaning source inlet stopper 28 can be provided to provide a cleaning source.

In this case, the cleaning source provided through the cleaning source inlet 22 may be at least one selected from the group consisting of a high pressure gas, a gas shock wave, and a cleaning liquid so that the cleaning source can be effectively removed corresponding to the contaminant of the pipe. That is, the high pressure gas, gas shock wave, or washing liquid may be supplied to wash the conduit, or the high pressure gas or gas shock wave and washing liquid may be mixed and supplied. In addition, a gas capable of dissolving the scale may be used as the high pressure gas according to the type of scale formed on the inner wall of the conduit. For example, ozone (O ₃ ) may be used that has strong oxidizing power to remove slime, scale, bacteria and bacteria in the pipeline.

On the other hand, high pressure gas may be used as compressed air, it is also possible to temporarily provide such compressed air to provide impact force to the pellet or to provide continuous compressed air. In addition, by intermittently firing compressed air and supplied to the conduit in the form of a pulsating wave, the slime or scale can be peeled off to discharge them from the conduit.

As the washing liquid, washing water or ozone water may be used, and a liquid medicine or disinfecting solution for disinfecting a pipe may be used to dissolve the scale and improve washing efficiency as the pellet proceeds.

On the other hand, coupled to the cleaning source inlet 22 may be provided with a cleaning source supply unit (not shown) for supplying a cleaning source. The cleaning source supply unit is a device capable of supplying the aforementioned cleaning source to the conduit in the form of high pressure, shock wave or pulsating wave, and provides a high pressure cleaning source to the hose and the hose which are coupled to the cleaning source inlet 22. It may be composed of a pump and a cleaning source such as gas or washing liquid. The cleaning source supply unit may be always coupled to the cleaning source inlet 22 to provide a cleaning source, or may be provided to the cleaning source inlet 22 by removing the cleaning source inlet stopper 28 to provide a cleaning source. It is possible.

Method for cleaning the conduit using the valve of the present embodiment, as described above, after closing the valve to block the flow of the fluid through the cleaning source inlet 22 of the valve to remove the contaminant in the pipeline effectively It is also possible to clean the pipeline by supplying, and after moving the pellet to the end of the guide tube 20, the high pressure cleaning source is input through the cleaning source inlet 22 to drive the pellet into the pipeline and the pipe as the cleaning source. It is also possible to effectively remove pollutants from

The drain portion 24 is for discharging the residue remaining in the hollow portion of the body 12 in the present embodiment is formed in the lower portion of the body 12 for natural discharge. That is, by forming a hole for the drain (drain) in the lower portion of the body 12 and a stopper can be removed if necessary to remove the residue. Of course, the formation position is not limited, and when the suction part is included in the drain part 24, the position may be sufficient. That is, when the suction device is provided in the drain part 24, it is also possible to forcibly suck and discharge the residue through the suction device regardless of the position of the drain part 24. When a high pressure gas or washing solution is injected to clean the conduit, these residues may remain in the hollow portion of the body 12, which may be a source of contamination of the fluid. Therefore, the drain portion 24 is formed in the body 12 to discharge the residue remaining in the hollow portion of the valve after the cleaning of the conduit.

Pellet inlet 14 is formed in the body 12, to insert the pellets having a pellet inlet stopper 16, if you want to clean the pipeline using the pellet, the pellet inlet stopper 16 to clean the pipeline Do it.

The pellet inlet 14 formed in the body 12 is formed to correspond to the position of the through hole 34 in the closed state of the flow of the fluid by rotating the ball 26. That is, when the valve 26 is closed by rotating the ball 26, the first passage 30 formed in the ball 26 does not communicate with the second passage 32 by the through hole 34, and the through hole 34 is It is blocked by the inner wall of the hollow portion of the body 12 to limit the communication of the fluid is to form a pellet inlet 14 in the body 12 so that the through-hole 34 and the pellet inlet 14 is in communication.

In the present embodiment, the first passage 30 and the second passage 32 formed in the body 12 are substantially straight with each other, and the pellet inlet 14 has the first passage 30 and the second passage 32. Is formed at a position approximately 90 degrees to the straight line forming. That is, when the fluid flow is opened and closed through the rotation and the reverse rotation of the ball 26 by 90 degrees, the first passage 30 and the first passage 30 are formed by the through hole 34 of the ball 26. The two passages 32 communicate with each other, and the through hole 34 of the ball 26 is in communication with the pellet inlet 14 when the flow of the fluid is closed.

In the method of inserting pellets through the pellet inlet 14, first, the valve is closed to communicate the through hole 34 of the ball 26 with the pellet inlet 14, and the plug of the pellet inlet 14 is opened to open the pellet. If the valve is opened again after inserting in 34, the pellet is advanced by the pressure of the fluid flowing in the conduit.

4A and 4B are flowcharts illustrating a pipeline cleaning method according to an embodiment of the present invention, and FIG. 5 is a flowchart illustrating a pipeline cleaning method according to an embodiment of the present invention. 4A and 4B, the body 12, the pellet inlet 14, the pellet inlet stopper 16, the operation unit 18, the guide tube 20, the cleaning source inlet 22, and the drain 24. , Ball 26, cleaning source inlet stopper 28, the first passageway 30, the second passageway 32, the through hole 34, the conduit 36, scale 38, pellets 40 Is shown. Figures 4a and 4b are shown separated on the ground in a connected view.

As described above, the method for cleaning the conduit using the valve of the present embodiment includes a body 12 having a first passage 30 and a second passage 32 to which the conduit 36 is connected, and a second passage. It is formed in the guide tube 20 and the guide tube 20 extending in the longitudinal direction at 34, and close the valve by using a valve including a cleaning source inlet 22 for supplying a cleaning source to the pipe 36 After blocking the flow of the fluid, it is also possible to supply the cleaning source through the cleaning source inlet (22) to clean the conduit (36), to form a separate pellet inlet 14 in the body 12 through the pellet After moving the 40 to the end of the guide tube 20, it is also possible to supply a high-pressure cleaning source through the cleaning source inlet 22 to drive the pellet 40 to the pipeline to clean the pipeline.

Hereinafter, a method of washing the conduit 36 by feeding the pellet 40 and then supplying the cleaning source through the cleaning source inlet 22 will be described.

As shown in (a) of FIG. 4A, when the fluid continuously moves to the conduit 36 while the valve is open, a scale 38 such as a solid is attached to the inner wall of the conduit 36 as time passes. In addition, slime such as corrosion products of the conduit 36 is present in the conduit 36. Such a scale 38 or the like interferes with the flow of the fluid in the conduit 36 to lower the fluid pressure, resulting in poor water discharge and contaminating the fluid. Therefore, in order to smooth the flow of the fluid in the conduit 36 and to prevent the contamination of the fluid, periodic cleaning of the conduit 36 is required.

In the method of cleaning the conduit 36 using the valve of the present embodiment, first, as shown in FIG. 4A (b), the valve disposed between the conduits 36 is closed to block the flow of the fluid. A spherical hollow portion is formed inside the body 12 so that the ball 26 having the through hole 34 formed therein may be rotatably accommodated. When the first passage 30 and the second passage 32 communicate with each other by the rotation of the ball 26 having the through hole 34 formed therein, the fluid flows from the first passage 30 to the second passage through the through hole 34. The valve is moved to 32 to open the valve. On the other hand, when the first passage 30 and the second passage 32 are not communicated by the through hole 34 due to the reverse rotation of the ball 26, the flow of fluid is blocked to close the valve (S100).

Opening and closing of the valve is made by the operation unit 18, the operation unit 18 is coupled to the ball 26 can adjust the rotation of the ball 26. In this embodiment, a rod-shaped lever is coupled with the ball 26 to adjust the rotation of the ball 26, but may be automatically coupled with a motor to adjust the rotation of the ball 26, a circular wheel It is also possible to rotate the ball 26 using.

Next, as shown in FIGS. 4A and 4B, the pellet 40 is inserted through the pellet inlet 14 with the valve closed. The pellet inlet 14 is for inserting the pellets 40 into the conduit 36 and has a pellet inlet stopper 16 so that the pellet 40 can be opened by inserting the pellet inlet stopper 16 if necessary (FIG. (C) of 4a). The pellet inlet 14 formed in the body 12 may rotate to form the ball 26 corresponding to the position of the through hole 34 in the closed state of the flow of the fluid. When the pellet 40 is inserted into the through hole 34 through the pellet inlet 14, the pellet inlet stopper 16 is closed (S200).

Next, as shown in (e) of Figure 4b, by opening the valve to open the fluid flowing in the pipe 36 to move the pellet 40 inserted into the through hole 34 to the end of the guide pipe 20. Let's do it. The guide tube 20 is a tube extending in the longitudinal direction of the second passage 32, and when the pellet 40 is inserted into the pellet inlet 14 and the valve is opened, the guide tube 20 is pelleted by the pressure of the fluid flowing in the conduit 36. 40 moves to the end of the guide tube 20 (S300).

In order to easily move the pellets 40 to the end of the guide tube 20, the inner diameter of the guide tube 20 may be larger than the inner diameter of the conduit 36. On the other hand, the step 23 to limit the movement of the pellet 40 can be formed at the end of the guide tube 20. When the pellet 40 is advanced by the pressure of the fluid flowing in the conduit 36, the pellet 40 may pass through the guide tube 20 and flow into the conduit 36, in which case the pellet 40 passes. Since the inner wall of one conduit 36 may be less washed than the conduit 36 by a separate cleaning source, the stepped wall 23 is formed so that the pellet 40 is located in the guide tube 20. It is possible to prevent the pellet 40 from flowing into the conduit 36.

Next, as shown in (f) of FIG. 4b, when the pellet 40 moves to the end of the guide tube 20, the valve is closed to block the fluid flowing in the conduit 36 again (S400), the cleaning source Supplying the cleaning source through the inlet (22) (S500). When the pellet 40 travels along the conduit 36 through the cleaning source, the pellet 40 pushes the scale 38 of the inner wall of the conduit 36 or pushes the slime inside the conduit 36 forward. 36).

In this embodiment, the valve is closed to block the flow of fluid, and a separate washing source is provided to advance the pellet 40 to remove the scale 38 of the inner wall of the pipe 36, but the pipe 36 without closing the valve. Along with the pressure of the fluid flowing in the) it is also possible to supply a separate cleaning source through the cleaning source inlet 22 to advance the pellet 40.

The cleaning source provided through the cleaning source inlet 22 may be at least one selected from the group consisting of a high pressure gas, a gas shock wave, and a cleaning liquid so that the cleaning source can be effectively removed in response to the contaminant of the conduit 36. have. That is, the high pressure gas, gas shock wave, or washing liquid may be supplied to wash the conduit 36, or the high pressure gas or gas shock wave and washing liquid may be mixed and supplied. In addition, a gas capable of dissolving the scale 38 may be used as the high pressure gas according to the type of the scale 38 formed on the inner wall of the conduit 36. For example, ozone (O ₃ ) may be used that has strong oxidizing power to remove slime, scale, bacteria and bacteria in the pipeline.

On the other hand, high pressure gas may be used as compressed air, it is also possible to temporarily provide such compressed air to provide impact force to the pellet or to provide continuous compressed air. In addition, compressed air may be intermittently fired and supplied to the conduit in the form of a pulsating wave to peel off the slime or scale 38 to discharge them from the conduit.

As the washing liquid, washing water or ozone water may be used, and a liquid chemical or disinfecting liquid for disinfection of a pipe may be used to dissolve the scale 38 and the like, thereby increasing the washing efficiency.

On the other hand, coupled to the cleaning source inlet 22 may be provided with a cleaning source supply unit (not shown) for supplying a cleaning source. The cleaning source supply unit is a device capable of supplying the aforementioned cleaning source to the conduit in the form of high pressure, shock wave or pulsating wave, and provides a high pressure cleaning source to the hose and the hose which are coupled to the cleaning source inlet 22. It may be composed of a pump and a cleaning source such as gas or washing liquid. The cleaning source supply unit may be always coupled to the cleaning source inlet 22 to provide a cleaning source, or may be provided to the cleaning source inlet 22 by removing the cleaning source inlet stopper 28 to provide a cleaning source. It is possible.

4B (g) illustrates a state in which fluid flows smoothly in the conduit 36 when the valve is opened again after the washing of the conduit 36 is completed. According to the present embodiment, when the pellets 40 are advanced along the conduit 36, the scale 38 of the inner wall of the conduit 36 and the slime in the conduit 36 are effectively removed to smoothly flow the fluid.

The valve used in the present embodiment can normally control the opening and closing of the valve, it is possible to insert the pellet 40 into the conduit 36 to clean the conduit 36 if necessary.

Many embodiments other than the above-described embodiments are within the scope of the claims of the present invention.

As described above, according to the preferred embodiment of the present invention, the pipe cleaning cost can be reduced by dismantling the pipe when the pipe is washed, and the user can minimize the inconvenience because the pipe can be washed with a partial cut.

In addition, by adding a cleaning source corresponding to the type of scale or slime to increase the cleaning efficiency, various cleaning methods are possible.

Claims (12)

A body having a first passageway and a second passageway to which the pipeline is connected, the hollow portion being formed inside; A ball rotatably received in the hollow part and having a through hole through which fluid is communicated; An operation unit which opens and closes the flow of the fluid by rotating the ball; A guide tube extending in the longitudinal direction from the second passage; A washing source inlet formed in the guide tube and into which a washing source is input; And A valve comprising a step formed in the end of the guide tube to limit the movement of the pellet. The method of claim 1, And a drain portion formed in the body to discharge the residue remaining in the hollow portion. The method of claim 1, And a pellet inlet formed to insert the pellet into the body. The method of claim 3, The pellet inlet, And rotate the ball to correspond to the position of the through hole in the closed state of the flow of fluid. The method of claim 1, And a washing source supply unit coupled to the washing source inlet to supply the washing source. The method of claim 1, The cleaning source is a valve, characterized in that at least one selected from the group consisting of a high pressure gas, gas shock wave and washing liquid. The method of claim 1, The inner diameter of the guide pipe is larger than the inner diameter of the pipe. delete A body formed with a first passageway and a second passageway to which the pipeline is connected, a guide tube extending in the longitudinal direction from the second passageway, a washing source inlet formed in the guide tube, and supplying a cleaning source to the pipeline; A method of cleaning a conduit using a valve including a step formed at the end of the guide tube to limit the movement of the pellet, (a) closing the valve to block the flow of fluid; (b) supplying a cleaning source through the cleaning source inlet. The method of claim 9, The pellet inlet is formed in the body is inserted into the pellet, Between step (a) and step (b), (c) inserting the pellet into the valve through the pellet inlet; (d) opening the valve to open the flow of fluid to move the pellet to the end of the guide tube. The method of claim 10, Between step (c) and step (d), (e) closing the valve to shut off the flow of fluid again. The method of claim 9, The cleaning source is a pipe washing method, characterized in that at least one selected from the group consisting of a high pressure gas, air shock wave and the cleaning liquid.

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