JP2018001135A - Pipeline cleaning mover pipeline cleaning method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipeline cleaning mover capable of improving progressivity in a pipeline while maintaining cleaning performance on deposits in the pipeline.SOLUTION: A pipeline cleaning mover 10, which cleans the interior of a pipeline 12 by moving through the pipeline 12, stores an inner inflator 16 that inflates in accordance with inner fluid pressures and breaks at a predetermined pressure value or more in an outer storage body 14 consisting of net-like bag body deformable up to an outer diameter state larger than the inner diameter of the pipeline 12 and fills a gap between the outer storage body 14 and the inner inflator 16 with an intermediate filler 18 having deformability and stability. The inner fluid pressure of the inner inflator 16 is adjusted to set the outer diameter of the outer storage body 14 covering the intermediate filler 18 slightly higher than the inner diameter of a sewage pipeline 12, and the intermediate filler 18 is deformed to push the outer storage body 14 into the sewage pipeline 12, thereby making the cleaning mover 10 move along the pipeline 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pipe cleaning moving body and a pipe cleaning method, and more particularly, to a pipe cleaning moving body and a pipe cleaning method for removing and cleaning deposits adhering to an inner wall of a pipe to be cleaned.

  Pipe lines are used in various forms in various places. For example, there are water and sewer pipes, pipes for sending raw materials and fuels in factories, and drain pipes in the home. There are various forms of an object flowing through a pipeline, such as gas, liquid, and solid. As an example, a sewer pipe will be described. The sewer is a collection of facilities and equipment for collecting rainwater and sewage (sewage) in urban areas mainly in underground waterways, etc., and then discharging them into public water areas. For such rainwater and sewage (sewage) Water treatment such as purification is performed. A representative example of this underground waterway is a sewer pipe. The sewage composed of rainwater and sewage flowing through the sewer pipe contains a large amount of dust that easily accumulates in the sewer pipe and filth that easily adheres.

  Therefore, a large amount of deposits (scales) easily adhere to sewer pipes, and dust, dirt, etc. remain. As a result, the flow capacity of the sewer pipe line is reduced and the pipe line may be clogged. Therefore, it is necessary to periodically inspect and clean the sewer pipes so that problems such as clogging do not occur.

  Conventionally, as a method for cleaning a sewer pipe, for example, there is one described in Patent Document 1 below. In this sewer pipe cleaning method, water is filled as a fluid inside a rubber bag body that can be deformed between an outer diameter state larger than the inner diameter and a smaller outer diameter state of the sewer pipe, and the bag body as required. A sponge as a porous elastic member is also packed inside to form a moving body for pipe cleaning, and this is pushed into the pipe and moved to rub the inner surface of the pipe with the outer surface of the bag. The deposits (including deposits) adhering to the inner surface of the road are scraped off. At that time, it has been proposed to project a mesh-like cleaning rib on the surface of the bag body or to cover the mesh body on the outside of the bag body. It has also been proposed to use a bag body itself as a net bag and to fill the inside with ice pieces of a size that does not leak from the mesh.

Japanese Patent Laying-Open No. 2015-13280

  However, in the pipe line cleaning method described in Patent Document 1, in any case, the followability to the state of the adhering matter adhering to the inner wall of the pipe line, for example, the amount of adhering matter is small. There is a difficulty in the smoothness of the movement of the moving body for road cleaning, that is, the progress, and an improvement without deteriorating the cleaning performance of the deposit is desired.

  The present invention has been made in view of the above problems, and the purpose thereof is a pipe cleaning movement that can ensure better progress without deteriorating the cleaning performance for deposits in the pipe. It is in providing a body and a pipe line cleaning method.

  In order to achieve the above-mentioned object, the pipe cleaning moving body according to claim 1 is introduced into a pipe line and moved along the pipe line within the section to be cleaned of the pipe line, thereby the object to be cleaned. In the movable body for pipe cleaning that cleans the section, the outer container which can be deformed between an outer diameter state larger than the inner diameter of the pipe line and a smaller outer diameter state, and the inner container is filled just inside the outer container. An intermediate portion filler that is deformable and recoverable with respect to a load, and is disposed inside the intermediate portion filler, contains a fluid, and at least the diameter of the conduit according to the internal fluid pressure And an internal expansion / contraction body that expands / contracts in a direction and expands / contracts the intermediate filler and the outer storage body by the expansion / contraction operation.

  According to this configuration, by adjusting the internal fluid pressure of the internal expansion / contraction body, the outer diameter of the outer storage body can be set larger (for example, about 5 to 10%) than the inner diameter of the pipeline. In this state, the intermediate portion filler is deformed and the outer housing is pushed into the conduit. In this state, by moving the cleaning moving body along the pipeline, the outer container rubs the inner wall of the pipeline, and the deposits (including deposits) adhering to the inner wall of the pipeline are squeezed. Torn off.

  At that time, due to the presence of the intermediate filler that is deformed and restored by a load such as a compressive force, the outer container is in the state of the adhering matter adhering to the inner wall of the pipe line, for example, the size and adhering amount of the adhering matter Therefore, the moving body for pipe line cleaning according to the present invention improves the progress in the pipe line while maintaining the cleaning performance against deposits.

  It is also possible to follow the inner wall of pipes with various inner diameters by the internal fluid pressure of the internal expansion / contraction body and the deformability of the intermediate filler, and maintain the cleaning performance against deposits in the pipes. Is done.

  The pipe cleaning mobile body according to claim 2 is the pipe cleaning mobile body according to claim 1, wherein the intermediate portion filler is any one of a molded body or lump body made of soft foamed urethane, or a vegetable fiber. It is composed of

  According to this configuration, the intermediate filler can be configured with easily available members, the increase in cost can be suppressed, and the deformability and recoverability of the intermediate filler can be appropriately ensured appropriately. it can. Therefore, followability to the inner wall of the pipe line is accurately ensured, the progress of the moving body for pipe cleaning becomes good, and the cleaning performance for the deposits in the pipe line is secured well.

  The pipeline cleaning moving body according to claim 3 is the pipeline cleaning moving body according to claim 1 or 2, wherein the internal expansion / contraction body has an internal fluid pressure equal to or higher than a preset pressure value. It is characterized in that it has a configuration in which the internal fluid escapes.

  According to this configuration, the internal fluid pressure of the internal expansion / contraction body moves from a state where the internal fluid pressure is less than the upper limit value to a location where a large amount or large deposits adhere to the inner wall of the pipeline, and the inner diameter of the pipeline is small. When the internal fluid pressure of the internal expansion / contraction body becomes equal to or higher than a predetermined pressure value, the internal fluid escapes. Thereby, an internal expansion / contraction body becomes small, and an intermediate | middle part filler and the outer side storage body which covers it also shrink | contract along with this, and an outer diameter becomes small.

  Therefore, if the pipe cleaning moving body falls into an immovable state in a place where the inner wall of the pipe line has changed in a direction that becomes smaller or a large amount or large deposits have adhered to the inner wall, When the compressive force is applied to the expansion body and the pressure value increases, the internal fluid escapes from the internal expansion body. Thereby, it becomes easy to move the moving body for pipe line cleaning, and it is possible to eliminate the immovable state.

  The moving body for pipe cleaning according to claim 4 is the moving body for pipe cleaning according to claim 3, wherein the configuration in which the internal fluid of the internal expansion / contraction body comes out is a member constituting the internal expansion / contraction body. It is a member that breaks when the pressure value is exceeded.

  According to this configuration, it is possible to achieve the internal fluid escape action, that is, the elimination of the immovable state with a simple configuration without adding another member to the configuration of the internal expansion / contraction body.

  The moving body for pipe line cleaning according to claim 5 is the moving body for pipe line cleaning according to claim 4, wherein the constituent member of the internal expansion / contraction body is a rubber balloon body. .

  According to this configuration, the internal expansion / contraction body can be configured with easily available members, the increase in cost can be suppressed, and the expansion / contraction property of the internal expansion / contraction body can be increased. In the pipes with various inner diameters, the cleaning performance for the deposits in the pipes can be further improved.

  The moving body for pipe cleaning according to claim 6 is the moving body for pipe cleaning according to any one of claims 1 to 5, wherein the outer storage body is a mesh bag. To do.

  According to this configuration, the mesh of the outer storage body formed of the mesh bag rubs the inner wall of the pipe line, so that the deposits attached to the inner wall of the pipe line are efficiently scraped off. Thereby, the cleaning performance with respect to the deposit | attachment adhering to the inner wall of a pipe line can be improved further.

  The moving body for pipe cleaning according to claim 7 is the moving body for pipe cleaning according to claim 6, wherein the longitudinal direction of the fibrous body or the striated body constituting the mesh bag body is the moving direction. It is characterized by skewing.

  According to this configuration, the mesh body of the mesh bag body in which the longitudinal direction of the fibrous body or the cable body is skewed with respect to the moving direction rubs the inner wall of the duct, thereby preventing the movement in the duct. Without this, the deposits adhering to the inner wall of the pipe line are more efficiently scraped off.

  The pipe line cleaning method according to claim 8 is the pipe line cleaning method using the pipe line cleaning mobile body according to any one of claims 1 to 7, wherein the pipe line cleaning mobile body is a pipe line. After being pushed in, a sherbet is injected from the rear in the moving direction of the pipe cleaning moving body to fill the pipe, and the pipe cleaning moving body is moved by the sherbet. It is characterized by cleaning.

  According to this configuration, the moving body for pipe cleaning pushed into the pipe can be moved by the sherbet. Thereby, in addition to the cleaning of the inner wall of the pipe line by the pipe cleaning moving body described above, it is possible to further clean the remaining deposits and the like by moving the sherbet in the pipe line.

  The pipe line cleaning method according to claim 9 is the pipe line cleaning method according to claim 8, wherein the plurality of pipe cleaning moving bodies are arranged in front of the sherbet in the pipe movement direction. Features.

  According to this structure, the cleaning performance with respect to the deposit | attachment in a pipe line can be improved further by the several mobile body for pipe line cleaning arrange | positioned ahead of the moving direction of a sherbet.

  As described above, according to the present invention, the intermediate portion filler follows the state of the deposits on the inner wall of the pipe, thereby maintaining the cleaning performance by the outer storage body, and the progress of the moving body for pipe cleaning. Therefore, the inner wall of the pipe line can be cleaned more smoothly by the moving body for pipe line cleaning. In addition, adaptability to pipes having various inner diameters is improved by improving the followability.

It is a partial cross section front view which shows one Embodiment of the mobile body for pipe line cleaning of this invention. It is a front view of the state which pushed the movable body for pipe line cleaning of FIG. 1 in the sewer pipe line. It is detail drawing of the mesh bag which comprises the outer side storage body of the mobile body for pipe line cleaning of FIG. It is a partial cross section front view which shows other embodiment of the mobile body for pipe line cleaning of this invention. It is explanatory drawing of the cleaning method in a pipe line using the moving body for pipe line cleaning of FIG. It is explanatory drawing of the cleaning procedure of the cleaning method in a pipe line of FIG. It is explanatory drawing of the other form of the cleaning method in a pipe line using the movable body for pipe line cleaning of FIG. It is a pipe cleaning method explanatory drawing using the moving body for pipe cleaning of FIG.

  In the following embodiments, an apparatus and a method for embodying the present invention are illustrated. However, the technical idea of the present invention does not specify the material, shape, arrangement, etc. of the component parts below. The technical idea of the present invention can be modified in various ways within the technical scope of the claims.

  DESCRIPTION OF EMBODIMENTS Embodiments of a pipe cleaning moving body and a pipe cleaning method of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a partial cross-sectional front view of the pipe cleaning moving body of this embodiment, and FIG. 2 is a front view of a state where the pipe cleaning moving body of FIG. 1 is pushed into a sewer pipe (pipe). The road is a cross section). The conduit cleaning movable body 10 of this embodiment includes an outer storage body 14 that can be deformed from an outer diameter larger than an inner diameter of the pipe 12 to be cleaned to a smaller outer diameter. The outer storage body 14 is formed of, for example, a stretchable mesh bag. An inner expansion / contraction body 16 that contains fluid and can be expanded / contracted at least in the radial direction of the conduit 12 according to the internal fluid pressure is disposed inside the outer storage body 14. The internal expansion / contraction body 16 is formed of, for example, a rubber balloon body.

  And between the outer storage body 14 and the inner expansion / contraction body 16 is filled with an intermediate filler 18 having deformability and resilience according to a load such as a compressive force. Therefore, it arrange | positions so that the intermediate part filler 18 may be filled in the inner side of the outer side storage body 14, and the internal expansion / contraction body 16 is arrange | positioned inside it. The intermediate filler 18 is formed of, for example, a soft foamed urethane molded body or block, or a plant fiber member, and is deformed and restored by a load such as a compressive force. A so-called sponge or the like can be suitably used as the molded product or lump made of soft urethane foam. Moreover, as a vegetable fiber, the mesocarp of a palm fruit, the hairy plant fiber generally called palm can be used conveniently. That is, the intermediate filler 18 is preferably one that changes in volume as the internal voids change. Moreover, this intermediate part filler 18 has air permeability and water permeability.

  The moving body 10 for cleaning a pipe line of this embodiment is filled with the intermediate portion filling material 18 in a so-called free state where no load is applied by adjusting the internal fluid pressure, for example, air pressure, of the internal expansion / contraction body 16. The outer diameter of the outer storage body 14 thus set is set larger than the inner diameter of the pipe line 12 by, for example, a difference in diameter ratio of about 5 to 10%. As shown in FIG. 2, the pipe cleaning mobile body 10 is pushed into, for example, a sewer pipe 12 and moved in the longitudinal direction of the pipe 12, that is, in the left-right direction in FIG. The deposit (including deposits) 38 adhering to the substrate is cleaned. At one end of the moving body moving direction corresponding to the longitudinal direction of the pipe line 12, a base part 20 is provided. The internal fluid pressure of the internal expansion / contraction body 16 can be adjusted. Specifically, the flange portion of the base portion 20 is firmly connected to the outer storage body 14, and a valve for adjusting the internal fluid pressure of the internal expansion / contraction body 16 and the rope body are connected to the flange portion. Connecting tools such as shackles and eyebolts are attached. In addition, you may provide this nozzle | cap | die part 20 in the both ends of a reciprocation direction as shown, for example in FIG.

  In this embodiment, as shown in FIG. 3, for example, as shown in FIG. 3, the reticulated bag constituting the outer storage body 14 forms a reticulated body by knitting a fibrous body or cable body 22 into a relatively rough square mesh, that is, a mesh. This is formed into a bag shape. In general, there are knots 24 at the intersections of the mesh-like fibrous or striated body 22, and these knots 24 slightly protrude outside the mesh bag. The knot 24 efficiently rubs the inner wall of the pipe line 12 to be cleaned. In addition, the longitudinal direction (fiber direction) of the fibrous body or the ridge body 22 constituting the mesh bag is set in the oblique direction with respect to the moving direction of the conduit cleaning moving body 10. That is, it is set so that the longitudinal direction (fiber direction) of the fibrous body or cord body 22 is approximately 45 ° with respect to the moving direction of the conduit cleaning moving body 10. Accordingly, the fibrous body or the cable body 22 constituting the mesh bag can be scraped off obliquely without being caught by the pipe deposit 38, so that they can be efficiently scraped. In addition, it is also possible to use a metal body for the fibrous body or the ridge body 22. Specifically, a metal wire or a wire rope can be used.

  The inner expansion / contraction body 16 is like a so-called rubber balloon, and in particular, the intermediate portion filler 18 and the outer storage body 14 are expanded / contracted and deformed by expanding / contracting in the radial direction of the pipe line 12. As a result, the outer diameter of the outer storage body 14 covering the intermediate portion filler 18 can be adjusted between an outer diameter larger than the inner diameter of the pipe 12 and a smaller outer diameter. Since the outer storage body 14 made of a net-like bag body can also be expanded and contracted to some extent, by adjusting the internal fluid pressure of the internal expansion / contraction body 16, the outer side covering material 18 corresponding to the inner diameter of various pipe lines 12 can be The outer diameter of the storage body 14 can be set. In this embodiment, water is used as the internal fluid of the internal expansion / contraction body 16. As the internal fluid of the internal expansion / contraction body 16, a liquid other than water may be used, or a gas such as air or nitrogen may be used.

  Further, the internal expansion / contraction body 16 is damaged when the internal fluid pressure exceeds a predetermined pressure value set in advance. The internal expansion / contraction body 16 can adjust the internal fluid pressure through, for example, the above-described base portion 20, but when the pipe cleaning moving body 10 moves to a place where the internal diameter of the pipe 12 is small while the internal fluid is still sealed. The internal fluid pressure increases due to compression. For example, even when the amount of the deposit 38 on the inner wall of the pipeline 12 is large or the deposit 38 is large, the inner diameter of the pipeline 12 to which the pipeline cleaning movable body 10 is to move is relative. Therefore, even in such a case, the internal fluid pressure of the internal expansion / contraction body 16 increases.

  Then, when the internal fluid pressure exceeds a predetermined pressure value, the internal expansion / contraction body 16 is damaged. As a result, the enclosed internal fluid escapes from the internal expansion / contraction body 16 and leaks to the outside from the outer storage body 14 which is a mesh bag through the intermediate filler 18. Therefore, the outer diameter of the outer storage body 14, that is, the conduit cleaning moving body 10 is reduced simultaneously with the breakage of the internal expansion / contraction body 16. Note that the inner expansion / contraction body 16 is formed on the outer storage body 14 that covers the intermediate filling material 18 when trying to pass through the pipe line 12 such that the amount of the deposit 38 is large or the deposit 38 is large. Any device capable of reducing the outer diameter may be used. Therefore, the internal expansion / contraction body 16 only needs to have a configuration in which the internal fluid escapes when the internal fluid pressure exceeds a predetermined pressure value. Specifically, there is a configuration in which a valve is provided through the inside and outside of the balloon body when the internal fluid pressure becomes a predetermined pressure value or more.

  The intermediate portion filling material 18 is filled between the inner expansion / contraction body 16 and the outer storage body 14, and has the outer storage body 14, that is, the mesh of the mesh bag body (including the knot 24) with its own deformability and resilience. Press against the inner wall of the conduit 12. In this case, due to the deformability and recoverability of the intermediate portion filler 18, the outer storage body 14 appropriately follows the state of the deposit 38 on the inner wall of the conduit, for example, the size and amount of the deposit 38. The outer storage body 14 is more strongly pressed at a position where the inner diameter of 12 is small, that is, where a larger amount of the deposit 38 is adhered. Therefore, the deposit 38 that has adhered to the inner wall of the conduit 12 can be efficiently scraped off.

  As the intermediate filler 18, as described above, a soft foamed urethane molded body or lump, or vegetable fiber such as palm can be used. Among them, when a soft foamed urethane material is used, for example, an integrated molded body that tightly fills the gap between the inner expansion / contraction body 16 and the outer storage body 14 may be used. Further, when the outer storage body 14 is a mesh bag body, the soft foamed urethane material is formed as a lump body having a size that does not leak from the mesh of the mesh, and is formed between the inner expansion / contraction body 16 and the outer storage body 14. It is good to fill it by pushing it in. Thereby, the restoring force of the plurality of bulky intermediate portion fillers 18 acts to stably press the outer storage body 14, that is, the mesh of the mesh bag body, against the inner wall of the duct 12. Even when plant fibers are used, they are preferably packed together in a size that does not leak from the mesh of the mesh bag, and filled so as to be pushed between the inner expansion / contraction body 16 and the outer storage body 14.

  FIG. 4 is a partial cross-sectional front view showing another embodiment of the conduit cleaning moving body 10. In this embodiment, the outer storage body 14 formed of a mesh bag having a circular cross section is elongated in the moving direction, and the inner expansion / contraction body 16 is also elongated accordingly. Further, the fluid inlet of the inner expansion / contraction body 16 made of a rubber balloon is disposed so as to approach one end in the longitudinal direction of the outer storage body 14, and between the inner expansion / contraction body 16 and the outer storage body 14. The intermediate filler 18 is filled. The fluid inlet of the internal expansion / contraction body 16 can be opened and closed in the packed bed of the intermediate filler 18.

  As is well known, when the fluid is injected into the internal expansion / contraction body 16 made of a rubber balloon body, the internal expansion / contraction body 16 tends to become a shape having a small surface area and a maximum volume, that is, a spherical shape. It is possible to do. In this embodiment, the contact area with the inner wall of the pipeline 12 is increased by lengthening the pipeline cleaning movable body 10. In this embodiment, the fluid inlet of the internal expansion / contraction body 16 is brought close to one end in the longitudinal direction of the outer storage body 14, so that fluid is directly injected into the internal expansion / contraction body 16 from the fluid injection port. can do. Therefore, in this embodiment, the base part of FIG. 1 is not used. Moreover, in this embodiment, the palm which is a plant fiber is used for the intermediate | middle part filler 18, this palm is made into the sheet | seat thickness, and is wound around the internal expansion / contraction body 16.

  FIG. 5 is an explanatory view of an embodiment of the in-pipe cleaning method using the pipe cleaning mobile body 10 of FIG. The pipe line to be cleaned in this embodiment is the above-described sewer pipe line 12, and in this sewer pipe line 12, sewage 46 flows from the left to the right in the figure. The section C to be cleaned of the sewer line 12 is a section between the left upstream manhole 30 and the right downstream manhole 32 in FIG. The sewer pipe 12 which becomes the cleaning target section C is buried between the upstream manhole 30 and the downstream manhole 32 at a position set in advance from the ground.

  In this embodiment, for example, when the pipe cleaning body 10 is moved in the sewer pipe 12 from the left upstream manhole 30 side to the right downstream manhole 32 side in FIG. In addition, the moving body 10 for pipe cleaning is so-called pressure-fed by the sherbet 70 and the water 72 filled in the rear in the moving direction in the sewer pipe 12.

  In order to clean the deposit 38 adhering to the inner wall of the sewer pipe 12 in the section C to be cleaned, sewage to the downstream sewer pipe 40 is provided at the inlet of the downstream sewer pipe 40 in the downstream manhole 32. A lid member 42 for interrupting the inflow of 46 is attached. The lid member 42 is provided with an opening / closing part 44. By opening / closing the opening / closing part 44, the lid member 42 remains attached to the inlet of the downstream sewer pipe 40, and the sewage to the downstream sewer pipe 40 is maintained. The inflow of 46 can be interrupted.

  A discharge communication pipe 48 is attached to the downstream manhole 32. This discharge communication pipe 48 is a pipe member for discharging deposits that continues from the depth position of the sewer pipe 12 to be cleaned to the height of the ground part, and is discharged by a suction pump 50 provided on the ground part. The pipe deposit 38 flowing into the communication pipe 48 can be sucked together with the sewage 46. Then, the sucked pipe line deposit 38 is collected in the discharge tank 52 together with the sewage 46. At this time, the inner expansion / contraction body so that the outer diameter of the outer housing body 14 constituting the outer skin of the pipe cleaning mobile body 10 is about 5 to 10% larger than the inner diameter of the pipe 12 in the section C to be cleaned. The internal fluid pressure of 16 is adjusted and the internal fluid is sealed.

  Moreover, in this embodiment, after pushing the moving body 10 for pipe cleaning of FIG. 1 into the sewer pipe 12 of the section C to be cleaned (see FIG. 6A), the sewer opening to the upstream manhole 30. An injection lid member 74 is attached to the upstream opening of the conduit 12, and the injection communication pipe 76 is connected to the opening of the injection lid member 74. The injection communication pipe 76 extends to the ground part, and the ground side end thereof is connected to the switching control unit 78. The switching control part 78 includes a sherbet injection device 82 and a liquid injection device 84 which are injection means 80. Connecting. A sherbet 70 made of a mixture of ice particles and water is supplied from the sherbet injection device 82, and water 72 is supplied from the liquid injection device 84. The switching control unit 78 switches between the sherbet 70 from the sherbet injecting device 82 and the water 72 from the liquid injecting device 84 and controls each flow rate.

  When the preparation for the sewer pipe line cleaning is thus completed, the opening / closing part 44 of the lid member 42 is closed to block the inflow of the sewage 46 (including the pipe deposit 38) into the downstream side sewer pipe line 40. Thereby, the water level of the sewage 46 in the downstream side manhole 32 rises. When the water level of the sewage 46 in the downstream manhole 32 rises from the state of FIG. 5, the suction pump 50 is operated to start the suction of the sewage 46 and the pipe deposit 38 in the discharge communication pipe 48.

  Next, as shown in FIG. 6 (B), the switching control unit 78 is switched to the sherbet supply side, and the sherbet 70 is supplied and injected from the sherbet injection device 82 into the sewer line 12 through the injection communication pipe 76. . Therefore, when moving the pipe cleaning mobile body 10 from the upstream side to the downstream side of the sewer pipe line 12 as in this embodiment, the outside of the pipe cleaning mobile body 10 pushed into the sewer pipe line 12. The storage body 14 is pressed against the inner wall of the sewer pipe 12 by the internal expansion / contraction body 16 and the intermediate filling material 18, and the solid ice does not pass through the inside of the pipe cleaning mobile body 10. The sherbet 70 is easily filled on the upstream side of the pipe cleaning moving body 10, that is, on the rear side in the moving direction.

  When the sherbet 70 is filled to the rear of the pipe cleaning moving body 10 in the moving direction, the switching control unit 78 is switched to the water supply side as shown in FIG. Water 72 is supplied / injected into the sewer line 12 through the pipe 76. Thereby, the movable body 10 for pipe line cleaning is pumped downstream in the sewer pipe line 12 of the section C to be cleaned. Along with this movement, the inner wall of the pipe 12 is rubbed by the outer storage body 14 of the pipe cleaning movable body 10 pressed against the inner wall of the pipe 12 by the inner expansion / contraction body 16 and the intermediate portion filler 18. At this time, the mesh of the mesh bag constituting the outer storage body 14 scrapes off the deposit 38. The scraped pipe line deposit 38 flows down to the downstream manhole 32 together with the sewage 46, is sucked by the suction pump 50, and is collected in the discharge tank 52. By performing this continuously from the upstream side to the downstream side of the sewer pipe 12, the deposit 38 attached to the inner wall of the sewer pipe 12 is cleaned by the pipe cleaning mobile body 10.

  At this time, depending on the state of the deposit 38 attached to the inner wall of the sewer pipe 12, that is, the size and amount of the deposit 38, the intermediate filler 18 is deformed or restored, so that the sewer The deposit 38 is scraped off while appropriately following the inner wall of the pipe 12. Therefore, the pipe inner wall cleaning performance by the pipe cleaning mobile body 10 is ensured, and the progress of the pipe cleaning mobile body 10 is not hindered. Therefore, the moving body 10 for pipe line cleaning according to this embodiment is excellent in progress in the sewer pipe line 12.

  Further, in this embodiment, the sherbet 70 filled in the rearward direction of movement of the pipe cleaning moving body 10 is also pumped downstream by the water 72, so that the ice particles in the sherbet 70 are separated from the sewer pipe 12. When rubbing against the inner wall, the deposit 38 adhering to the inner wall is scraped off. The pipe deposit 38 scraped in this manner also flows down to the downstream manhole 32 and is similarly sucked by the suction pump 50 from the discharge communication pipe 48 and collected in the discharge tank 52. The deposit cleaning ability of the sewer pipe 12 by the pipe cleaning method of this embodiment is particularly exerted on the so-called overlying bent portion outer deposit 38 piped below the river, for example.

  Further, the internal fluid pressure of the internal expansion / contraction body 16 is increased by moving to a location where a large amount of the attachment 38 is attached or a location where the large attachment 38 is attached, and the internal fluid of the internal expansion / contraction body 16 increases. When the pressure exceeds a predetermined pressure value, the internal expansion / contraction body 16 is damaged. As a result, in a situation where the pipe cleaning movable body 10 is clogged, the internal expansion / contraction body 16 is damaged, and the internal fluid escapes from the pipe cleaning mobile body 10, thereby reducing the outer diameter of the outer storage body 14. It becomes small and it becomes possible to move the moving body 10 for pipe line cleaning. Therefore, in this embodiment, it is possible to prevent the pipeline cleaning moving body 10 from becoming immovable in the pipeline 12.

  The problem in the pipeline cleaning work using the pipeline cleaning mobile 10 is that the pipeline cleaning mobile 10 is clogged in the sewer pipeline 12 between the upstream manhole 30 and the downstream manhole 32. It is a situation that can not be taken out. In such a situation, it is known as an empirical rule how much the outer diameter of the pipe cleaning mobile body 10 is small. Therefore, the internal fluid pressure generated in the internal expansion / contraction body 16 with the outer diameter contraction ratio is known. The internal expansion / contraction body 16 is designed so that is equal to or greater than a predetermined pressure value. And by using the internal expansion / contraction body 16 designed in this way, the internal expansion / contraction body 16 can be damaged in a situation where the pipe cleaning moving body 10 is clogged in the sewer pipe 12. This makes it possible to move the pipe cleaning moving body 10 and prevent the pipe cleaning moving body 10 from moving in the pipe 12.

  In this embodiment, only one conduit cleaning moving body 10 in FIG. 1 is arranged in front of the sherbet 70 in the moving direction, but two or more moving bodies 10 may be arranged in front of the sherbet 70 in the moving direction. And if it does in that way, the cleaning performance with respect to the inner-wall deposit | attachment 38 of the pipe line 12 by the moving body 10 for pipe line cleaning will improve further. Further, for example, the pipe cleaning mobile body 10 in the front of the moving direction cannot scrape the deposit 38, and as a result, the internal expansion / contraction body 16 in the pipe cleaning mobile body 10 is damaged. Even in such a case, it may be considered that the deposit 38 can be scraped off by the pipe cleaning moving body 10 at the rear of the moving direction.

  FIG. 7 is an explanatory view showing another form of the in-pipe cleaning method using the pipe cleaning mobile body 10 of FIG. Even in this sewer pipe 12, sewage 46 flows from the left to the right in the figure. In this embodiment, a mode in which the inner diameter of the pipe 12 changes from a large diameter to a small diameter in the middle of the pipe 12 is shown. As described above, the pipe cleaning mobile body 10 is provided with the cap portions 20 at both ends in the moving direction, and the both ends in the moving direction of the pipe cleaning mobile body 10 through the base portion 20. Each of these is provided with a moving cable body 26. Each moving cable body 26 is connected to each of two winding devices 34 and 36 disposed on the ground at each position of the upstream manhole 30 and the downstream manhole 32, respectively. Winding is possible by the winding devices 34 and 36. A pulley 28 for guiding the moving cable body 26 is disposed at a bent portion of the routing path of the moving cable body 26.

  As a preparation for the in-pipe cleaning method of this embodiment, the lid member 42 and the discharge communication pipe 48 are installed in the downstream manhole 32 as in the in-pipe cleaning method of FIG. In addition, prior to the cleaning in the pipeline, the outer diameter of the outer storage body 14 constituting the outer skin of the pipeline cleaning moving body 10 is that of the large-diameter side sewer pipe 12a having a larger inner diameter in the section C to be cleaned. The internal fluid pressure of the internal expansion / contraction body 16 is adjusted so as to be about 5 to 10% larger than the inner diameter, and the internal fluid is sealed.

  This moving body 10 for pipe cleaning is pushed from the upstream manhole 30 into the large diameter sewer pipe 12a. In this state, for example, the upstream and downstream winding devices 34 and 36 are alternately operated to alternately wind the moving cable bodies 26 at both ends in the moving direction of the pipe cleaning moving body 10. The moving body 10 for pipe cleaning is reciprocated in the direction of the arrow in FIG. Along with this reciprocation, the deposit 38 attached to the inner wall of the pipe 12 is scraped off by the mesh of the mesh bag constituting the outer storage body 14 and flows down to the downstream manhole 32 together with the sewage 46, It is sucked by the suction pump 50 and collected in the discharge tank 52.

  By repeating this from the upstream side of the sewer pipe 12 of the section C to be cleaned, the deposits 38 adhering to the inner wall of the large-diameter side sewer pipe 12 a are scraped one after another, and the downstream manhole 32 together with the sewage 46. It flows down and is discharged. Eventually, the moving body 10 for pipe line cleaning is moved to the connection part (step part) with the small-diameter side sewer pipe line 12b. An internal fluid is enclosed in the internal expansion / contraction body 16 of the internal expansion / contraction body 16 made of a rubber balloon body and the movable body 10 for pipe cleaning, which is provided with an intermediate filler 18 having deformability / restorability. Even in the state, for example, by changing the tension of the moving cable body 26 that pulls the conduit cleaning moving body 10 from both ends in the moving direction, the outer diameter changes. This is because the base part 20 to which the moving cable body 26 is connected is firmly connected to the outer storage body 14 that is a mesh bag, and when the tension of the moving cable body 26 is increased, The storage body 14 extends in the moving direction and sag in the radial direction, and the internal expansion / contraction body 16 and the intermediate filler 18 are also deformed. Therefore, when the inner diameter of the sewer pipe 12 changes from a large diameter to a small diameter, the pipe cleaning is performed by increasing the tension of the cable body 26 that pulls the pipe cleaning moving body 10 from both ends in the moving direction. The outer diameter of the moving body 10 is reduced (the moving direction length is increased). Thereby, as shown in FIG. 8, the movable body 10 for pipe line cleaning can be inserted into the small-diameter side sewer pipe 12b without damaging the internal expansion / contraction body 16.

  When the pipe cleaning movable body 10 is moved into the small-diameter side sewer pipe 12b, the upstream and downstream winding devices 34 and 36 are alternately operated in the same manner as in the above-described large-diameter sewer pipe 12a. The pipe cleaning mobile body 10 is reciprocated. And, at that time, the inner wall of the pipe 12 is rubbed with the outer container 14, which is pressed against the inner wall of the small-diameter side sewer pipe 12b by the inner expansion / contraction body 16 and the intermediate portion filler 18, that is, the mesh of the mesh bag, The deposit 38 adhering to the inner wall is scraped off. The scraped pipe deposit 38 flows down to the downstream manhole 32 together with the sewage 46 in the same manner as in the large-diameter sewer pipe 12 a, sucked by the suction pump 50, and collected in the discharge tank 52. Therefore, also in the pipe line cleaning method of this embodiment, the pipe line cleaning performance by the pipe line cleaning mobile body 10 is maintained, and the progress in the sewer pipe line 12 is improved.

  During this cleaning operation, the pipe cleaning moving body 10 moves to a place where a large amount of deposit 38 is attached or a place where a large deposit 38 is attached. As a result, the inner diameter of the pipe 12 is reduced. When relatively small, the internal fluid pressure of the internal expansion / contraction body 16 increases as described above. When the internal fluid pressure becomes a predetermined pressure value or more, the internal expansion / contraction body 16 is damaged, and the outer diameter of the pipe cleaning moving body 10, that is, the outer storage body 14 is reduced. For this reason, the pipe cleaning moving body 10 does not become immovable even at a place where the attached matter 38 is attached in a large amount or a place where the large attached matter 38 is attached.

  Thus, in these embodiments, by adjusting the internal fluid pressure of the internal expansion / contraction body 16, the outer diameter of the outer storage body 14 is set slightly larger than the inner diameter of the sewer pipe 12, and the intermediate portion The outer packing 14 is pushed into the sewer pipe 12 by deforming the filler 18. In this state, when the cleaning moving body 10 is moved along the pipe 12, the adhering matter 38 attached by the inner wall of the pipe 12 being rubbed by the outer storage body 14 is scraped off. At that time, the outer storage body 14 pressed against the inner wall of the pipe line 12 by the deformable and recoverable intermediate portion filler 18 appropriately follows the state of the deposit 38 attached to the inner wall of the pipe line 12. The progress in the pipeline 12 is improved while maintaining the cleaning performance for the inner wall deposit 38 on the pipeline 12. In addition, the outer container 14 follows the inner wall of the pipe 12 having various inner diameters due to the internal fluid pressure of the inner expansion / contraction body 16 and the deformability of the intermediate portion filler 18, and the deposits in the pipe 12. The cleaning performance for 38 is maintained.

  Further, the intermediate part filler 18 is made of any one of a molded product or a lump made of soft foamed urethane, or a vegetable fiber, so that the deformability and restorability of the intermediate part filler 18 are improved, and the pipeline 12 It is possible to improve the progress of the pipe cleaning moving body 10 while ensuring the followability to the inner wall of the pipe and to ensure the cleaning performance for the deposit 38 in the pipe 12. Moreover, the cost can be reduced by configuring the intermediate filler 18 with easily available members.

  Further, in a place where a large amount of deposit 38 is attached to the inner wall of the pipe line 12 or a large deposit 38 is attached, the internal fluid pressure of the internal expansion / contraction body 16 becomes equal to or higher than a predetermined pressure value. Since the expansion / contraction body 16 is damaged and the outer diameter of the pipe cleaning moving body 10 is reduced, the pipe cleaning moving body 10 does not become immovable in the pipe 12.

  Further, by forming the internal expansion / contraction body 16 with a rubber balloon body, the expansion / contraction performance of the internal expansion / contraction body 16 is increased, and the followability to the pipe lines 12 having various inner diameters is improved. Moreover, the cost can be reduced by configuring the internal expansion / contraction body 16 with an easily available member.

  Further, by configuring the outer storage body 14 with a mesh bag body, the inner wall of the pipe 12 is rubbed by the mesh of the mesh bag body, and the deposit 38 is efficiently scraped off.

  Further, the longitudinal direction of the fibrous body of the mesh bag body or the strip body 22 is skewed with respect to the moving direction of the moving body 10 for pipe cleaning, so that the movement in the pipe line 12 is not hindered. The deposit 38 attached to the inner wall of the path 12 is efficiently scraped off.

  In addition, the sherbet 70 can be easily filled in the pipeline 12 by injecting the sherbet 70 backward in the movement direction after the pipeline cleaning movable body 10 is pushed into the pipeline 12. Then, by moving the sherbet 70 in the moving direction and cleaning the inside of the pipe line 12 by the pipe cleaning moving body 10, the pipe pipe is cleaned without requiring complicated preparation such as routing. Can do. Further, in addition to the cleaning of the inner wall of the pipe line 12 by the pipe cleaning moving body 10, remaining deposits and the like can be further cleaned by moving the sherbet 70 in the pipe line.

  It goes without saying that the present invention includes various embodiments not described above. Therefore, the technical scope of the present invention is defined only by the invention-specifying matters described in the scope of claims which is appropriate from the above description.

10 Mobiles for pipe cleaning 12 Pipes (sewer pipes)
DESCRIPTION OF SYMBOLS 14 Outer storage body 16 Inner expansion / contraction body 18 Intermediate | middle part filler 22 Fibrous body or rope body 38 Deposit 70 Sherbet C Section for cleaning

Claims (9)

In the pipeline cleaning movable body that is introduced into a pipeline and cleans the cleaning target section by being moved along the pipeline in the cleaning target section of the pipeline.
An outer housing body that is deformable between an outer diameter state larger than an inner diameter of the pipe line and a smaller outer diameter state;
An intermediate filler that is arranged so as to fill the inner side of the outer storage body and has deformability and resilience with respect to a load;
Arranged inside the intermediate portion filler, containing fluid, and expanding / contracting at least in the radial direction of the pipe line in accordance with the internal fluid pressure, and by the expansion / contraction operation, the intermediate portion filler and the An internal expansion / contraction body that expands / contracts the outer storage body, and a moving body for pipe line cleaning.   The said intermediate | middle part filler is comprised with either the molded object or the lump body made from soft foaming urethane, and the vegetable fiber, The moving body for pipe line cleaning of Claim 1 characterized by the above-mentioned.   3. The conduit cleaning movable body according to claim 1, wherein the internal expansion / contraction body has a configuration in which the internal fluid is discharged when the internal fluid pressure becomes equal to or higher than a preset pressure value. .   4. The conduit cleaning moving body according to claim 3, wherein the internal fluid from the internal expansion / contraction body is configured such that a member that forms the internal expansion / contraction body is a member that is damaged by the pressure value or more.   The moving member for pipe cleaning according to claim 4, wherein the constituent member of the internal expansion / contraction body is a rubber balloon body.   6. The conduit cleaning moving body according to any one of claims 1 to 5, wherein the outer storage body is a mesh bag.   The moving body for pipe line cleaning according to claim 6, wherein the longitudinal direction of the fibrous body or the rope body constituting the mesh bag body is skewed with respect to the moving direction. In the pipe line cleaning method using the pipe line cleaning movable body according to any one of claims 1 to 7,
After pushing the pipe cleaning mobile body into the pipe line, injecting sherbet from behind the moving direction of the pipe cleaning mobile body to fill the pipe line,
A pipeline cleaning method, wherein the pipeline is cleaned by moving the pipeline cleaning movable body by the sherbet.   The pipe line cleaning method according to claim 8, wherein a plurality of pipe line cleaning moving bodies are arranged in front of the sherbet in the pipe movement direction.

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