JP2015013280A - Cleaning movable body and pipeline cleaning system using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning movable body which can move in a pipeline and improves a cleaning effect.SOLUTION: A cleaning movable body 46 introduced into a pipeline 12 and cleaning a cleaning target section 14 by being moved in the cleaning target section 14 of the pipeline 12 comprises: a bag body 62 having predetermined size; and a filling material to be filled in the bag body 62. The cleaning movable body 46 is configured to have size for blocking the pipeline 12 in a state that the filling material is filled in the bag body and the cleaning movable body is introduced into the cleaning target section 14 of the pipeline 12, and have deformation resistance.

Description

  The present invention relates to a cleaning moving body and a pipe cleaning system using the same, and in particular, a cleaning moving that cleans the inside of a pipe by introducing the cleaning moving body into the pipe and moving the pipe. The present invention relates to a body and a pipeline cleaning system using the body.

  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, drain pipes in the home, and the like. There are various forms of an object flowing through a pipeline, such as gas, liquid, and solid.

  A sewer pipe will be described as an example. 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. The sewage and sewage (sewage) are purified. Water treatment such as is performed. There is a sewer pipe as a representative of the underground waterway.

  There is precipitation in meteorology as rainwater flowing through sewer pipes. It also includes snowmelt water that has melted due to rising temperatures. Examples of sewage flowing through sewer pipes include human waste from flush toilets at home, domestic wastewater generated by cooking and washing at home, and industrial wastewater from shops and factories. Therefore, the sewage composed of these rainwater and sewage contains a large amount of dust that easily accumulates in the sewer pipe, and dirt that easily adheres to the pipe wall of the sewer pipe.

  As described above, sewage such as domestic wastewater and industrial wastewater flows into the sewer pipe, so that a large amount of sediment (scale) easily adheres to the inside of the pipe, and dust, filth and the like remain. If this happens, the flow capacity of the pipe will decrease and the pipe may become 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 pipe cleaning method, there are a solid pig method (for example, Patent Documents 1 and 2), a nozzle method (for example, Patent Document 3), and a cleaning method using a fluid for cleaning (Patent Document 4). Attention has been paid. Among these, the solid pig method is that the pig is moved into the pipeline by introducing the pig into the pipeline and pumped using air or liquid, and the pig collides with or contacts the inner wall of the pipeline. This is to clean the deposits in the pipe. In order to improve the cleaning effect, the shape of the pig is changed to a bullet shape, and a protrusion is provided on the surface of the pig.

Japanese Patent Laid-Open No. 2001-191045 JP 2009-66522 A Japanese Patent Laid-Open No. 9-10716 Japanese Patent No. 4653921

  In the above-described cleaning method using a solid pig, the solid pig is configured as a single piece, and the size and shape are substantially fixed. A solid pig having an optimum size according to the diameter of the pipe to be cleaned is provided each time. It is necessary to prepare. If the one closer to the diameter of the pipe is selected, the cleaning effect is improved, but it is difficult to move the pipe smoothly. If emphasis was placed on mobility, there was a problem that a gap was inevitably generated between the pipe wall and the pig, and the cleaning effect was reduced.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a cleaning moving body that is easy to move in a pipeline and has an improved cleaning effect.

  In order to achieve the above object, the cleaning moving body according to claim 1 is introduced into the pipe and is moved in the cleaning target section of the pipe to clean the cleaning target section. In the moving body, the cleaning moving body has a size that simply closes the pipe while being introduced into a section to be cleaned of the pipe, and has a deformable structure. To do.

  Thereby, the mobile body for cleaning introduced into the pipe line has a deformability and simply closes the pipe line in the section to be cleaned while being introduced into the section to be cleaned. Here, the simple blockage refers to a state in which the cleaning movable body is introduced into the pipeline and the outer surface of the cleaning mobile body is in contact with the entire circumference of the inner wall of the pipeline and is movable. Accordingly, since the cleaning moving body can be moved in a simple closed state, the inner wall of the pipe is rubbed and cleaned effectively. Furthermore, since the cleaning mobile body has deformability, even if the diameter of the pipe line changes in the process of moving the cleaning mobile body, the cleaning mobile body is changed according to the pipe diameter. Since the diameter can be changed, it is possible to perform cleaning while maintaining a simple closed state. Further, even when the pipe is bent, it can be moved while being deformed in the pipe, so that the cleaning operation is not hindered.

  The cleaning mobile body according to claim 2 is the cleaning mobile body according to claim 1, wherein the cleaning mobile body is an elastic body having a predetermined size, and a protruding portion is formed on an outer surface of the elastic body. Is provided. For example, rubber and polyurethane foam are suitable for the elastic body. Since the protrusion is formed on the outer surface, the cleaning wall can be effectively rubbed against the inner wall of the pipe when the cleaning moving body moves along the pipe, thereby improving the cleaning effect.

  The cleaning mobile body according to claim 3 is the cleaning mobile body according to claim 1, wherein the cleaning mobile body includes a bag body of a predetermined size and a filler filled in the bag body. It is characterized by comprising.

  As a result, the cleaning moving body introduced into the pipe line simply closes the pipe line of the cleaning target section in a state where the bag is filled with a predetermined size and is introduced into the cleaning target section. . Here, the simple blockage refers to a state in which the cleaning movable body is introduced into the pipeline and the outer surface of the cleaning mobile body is in contact with the entire circumference of the inner wall of the pipeline and is movable. The size of the cleaning moving body is highly versatile because the amount of the bag or the filling material to be packed in the bag can be changed according to the diameter of the pipe line in the section to be cleaned. Moreover, since the moving body for cleaning is moved in a simple closed state, the inner wall of the pipe is rubbed and cleaned effectively. Furthermore, since the cleaning mobile body has deformability, even if the diameter of the pipe line changes in the process of moving the cleaning mobile body, the cleaning mobile body is changed according to the pipe diameter. Since the diameter can be changed, it is possible to perform cleaning while maintaining a simple closed state. Further, even when the pipe is bent, it can be moved while being deformed in the pipe, so that the cleaning operation is not hindered.

  The cleaning mobile body according to claim 4 is the cleaning mobile body according to claim 3, wherein the bag is made of a water-tight material, and the filler is a fluid. And Accordingly, the cleaning mobile body can be configured by filling a fluid-tight bag body with a fluid, and the cleaning mobile body having a size and deformability that easily closes the pipe line can be easily and low-cost. It is possible to configure. Further, since the bag body is water-tight, the cleaning moving body can be easily pulled from the front in the moving direction.

  According to a fifth aspect of the present invention, in the cleaning movable body according to the fourth aspect, the fluid is a sherbet body having water or ice particles and water. The sherbet body having water or ice particles and water as a fluid is harmless and easily available. Therefore, it is possible to easily and inexpensively configure a cleaning body having a size and a deformability that simply closes the pipe and is highly safe. In addition, when a sherbet body is used, a temperature change can be given to the deposit in the pipe and its adhesion can be reduced, so that the cleaning effect can be enhanced.

  The cleaning moving body according to claim 6 is the cleaning moving body according to claim 3, wherein the filler is a porous elastic member impregnated with a fluid. As the porous elastic member, for example, a sponge material, a felt material or the like is suitable. The fluid is impregnated in the open cells of the porous elastic member which is this continuous foam. Accordingly, since the cleaning mobile body is a porous elastic member impregnated with the fluid, the shape is maintained to some extent, and the cleaning mobile body can be easily introduced into the cleaning target section. In addition, when the porous elastic member is deformed, it repels with a substantially constant reaction force, and even if the diameter of the pipeline changes, the frictional resistance with the pipeline does not increase, so smooth movement within the pipeline Therefore, even if there is a bend in the pipeline, there is no problem in the cleaning operation.

  The cleaning mobile body according to claim 7 is the cleaning mobile body according to any one of claims 3 to 6, wherein the bag body has elasticity. For example, a rubber bag is suitable. Therefore, since the bag body expands and contracts in accordance with the amount of the filler packed in the bag body, it is possible to easily configure a cleaning body having an appropriate size. Furthermore, since the bag body itself expands and contracts, even if the diameter of the pipe line changes or the pipe line is bent, the cleaning moving body can smoothly move in the pipe line.

  The cleaning mobile body according to claim 8 is the cleaning mobile body according to any one of claims 3 to 7, wherein the bag body is provided with a protrusion on an outer surface. . This protrusion can be provided, for example, by covering a bag with a net-like body. Furthermore, it is possible to simply form the cleaning rib integrally with the bag body. The protruding portion rubs or scrapes the tube wall when the cleaning moving body is moved in the pipeline, and the deposits and the like are effectively removed.

  The cleaning mobile body according to claim 9 is the cleaning mobile body according to claim 3, wherein the bag body is formed of a net-like body, and the filler does not drop from the mesh of the net-like body. It is characterized by being an aggregate of granular materials. Therefore, the aggregate of the granular material packed in the mesh is moved while contacting the inner wall of the pipe, so that the aggregate rubs the pipe wall and performs effective cleaning. Further, when ice pieces are used as the aggregate, the temperature change is given to the deposit attached to the tube wall, so that the adhesion force of the deposit is reduced and the cleaning effect is further improved.

  The cleaning mobile body according to claim 10 is the cleaning mobile body according to any one of claims 1 to 9, wherein the cleaning mobile body is forward and backward in a moving direction of the cleaning mobile body. Each of the string-like bodies is connected to each other, and each of the string-like bodies is configured to be movable or reciprocally movable in the cleaning target section. Therefore, the string-like body is pulled from one or the other end of the section to be cleaned and moved in the pipeline, or the string-like body is alternately pulled from the one and the other end to move the inside of the pipeline. Can be reciprocated, and the cleaning moving body can be reliably moved in the pipeline. Since it can be moved reliably, the inside of the pipe is surely cleaned.

  The cleaning mobile body according to claim 11 is the cleaning mobile body according to claim 10, wherein the cleaning mobile body is provided in a receiving portion in which a string-like body is connected to the front and rear in the moving direction. The accommodation portion is characterized in that when the respective string-like bodies are pulled in opposite directions, the volume for accommodating the cleaning moving body is reduced. Therefore, when it becomes difficult to move the cleaning movable body accommodated in the accommodating portion in the middle of the pipeline, each of the string-like members can be pulled in opposite directions to reduce the volume of the accommodating portion. it can. When the volume of the housing portion is reduced, the cleaning moving body housed in the housing portion is deformable and deforms to a small extent, and as a result, it is possible to return the state in the pipe to a possible state again.

  The cleaning mobile body according to claim 12 is the cleaning mobile body according to claim 11, wherein the housing portion is configured by a net-like body or a string-like body extending in parallel with the moving direction. Features. Therefore, it is possible to easily configure the storage section, and it is possible to easily store the cleaning moving body in the storage section, or to easily remove the cleaning moving body from the storage section.

  In order to achieve the above object, a pipe cleaning system using the cleaning mobile body according to claim 13 is a pipe cleaning using the cleaning mobile body according to any one of claims 3 to 8. In the system, the pressure is adjusted by changing the amount of the fluid in the bag based on a detection sensor for detecting the pressure of the fluid in the bag of the movable body for cleaning, and a pressure signal from the detection sensor. And a pressure adjusting means.

  With this configuration, the pressure of the fluid in the bag can be adjusted, so that the pressure of the fluid of the cleaning moving body that is moving in the pipe can always be maintained in an appropriate state. That is, the strength with which the cleaning moving body always rubs the inner surface of the pipe line in the pipe line can be made substantially constant. Therefore, the moving body for cleaning is able to move smoothly in the pipe line and wash effectively when the inner diameter of the pipe line is different or when the pipe line is bent, while maintaining a constant cleaning effect. Can do.

  The pipeline cleaning system according to claim 14 is the pipeline cleaning system according to claim 13, wherein the pressure adjusting means is attached in a state of being in communication with a tank accommodating the fluid and the inside of the bag body. A flexible pipe body, a suction / discharge pump for injecting and discharging the fluid from the tank to the bag body via the pipe body, and controlling the suction / exhaust pump based on a pressure signal of the detection sensor And a control unit. Therefore, since the control unit controls the suction / exhaust pump so that the pressure of the fluid in the bag of the cleaning mobile body is always set, the fluid is injected into and discharged from the bag body of the cleaning mobile body. It is possible to adjust the internal pressure of the fluid of the cleaning moving body with a simple mechanism.

  According to the cleaning mobile body of the present invention, the cleaning mobile body has a size that simply closes the pipe line when introduced into the pipe line, and has a deformability. It is rich in properties and facilitates the cleaning operation and improves the cleaning effect. Therefore, the quality of the cleaning operation of the pipe line can be improved, and the cost of the cleaning operation can be reduced and the cleaning operation can be further shortened.

It is a schematic explanatory drawing of the moving body for washing | cleaning of this invention. It is a schematic explanatory drawing of 1st Embodiment of the pipe line washing | cleaning system using the moving body for washing | cleaning of this invention. The cleaning moving body is moved by water. FIG. 3 is a schematic explanatory diagram of pressure adjusting means for controlling the pressure of the fluid of the bag body according to the first embodiment of the pipe line cleaning system of FIG. 2. It is a schematic explanatory drawing of 2nd Embodiment of the pipe line washing | cleaning system using the moving body for washing | cleaning of this invention. The cleaning moving body is moved using a string-like body. It is a schematic explanatory drawing of 3rd Embodiment of the pipe line washing | cleaning system using the moving body for washing | cleaning of this invention. The cleaning moving body is accommodated in the container and moved. It is a schematic explanatory drawing of 4th Embodiment of the pipe line washing | cleaning system using the moving body for washing | cleaning of this invention. The cleaning moving body is moved using a sherbet-like fluid having ice particles and water and water. FIG. 7 is a schematic explanatory diagram illustrating a state in which a cleaning moving body is introduced into a pipe line, and a fluid is further injected from the rear according to the fourth embodiment of the pipe line cleaning system of FIG. 6. .

  FIG. 1 is a schematic explanatory view of a cleaning moving body of the present invention. The cleaning moving body 46 shown in FIG. 1A has a structure in which water is filled as a filler in a rubber bag body 62. A clasp 60 for closing the mouth of the bag body 62 is provided at the tip of the bag body 62, and the clasp 60 is used to pull the cleaning mobile body 46 from the front in the moving direction of the cleaning mobile body 46. A hook for injecting and containing the fluid into the hook portion 60a and the bag 46 (not shown) is provided. In a state of being introduced into the pipe line 12, the pipe 12 is filled with water in an amount that simply closes the pipe 12, and then plugged and introduced into the pipe line 12. The pressure of the water introduced into the bag body 62 is preferably 0.003 to 0.03 MPa.

  Here, the simple blockage means that the outer surface of the cleaning mobile body 46 is in contact with the entire circumference of the inner wall of the pipe line 12 with a predetermined pressure in a state where the cleaning mobile body 46 is introduced into the pipe line 12. It is a state and means a movable state. The friction coefficient at the time of moving the pipe line 12 is changed depending on the pressure value of the packed water, and the degree of rubbing the pipe wall is different. FIG. 1B shows a simple blockage state in the pipe 12. In addition, it also shows a state where it is moving while being pushed out by water 50 from behind. Compared with the state before introduction shown in FIG. 1 (a), the shape of FIG. 1 (a) is such that the top and bottom are crushed and the left and right are extended. However, since the rear side is pushed by water 50, a slightly flat shape is shown. When the cleaning moving body 46 moves in the pipe 12, the cleaning moving body 46 that simply closes the pipe 12 has almost no gap with the inner wall of the pipe 12, so that the inner wall is effectively rubbed and deposited. Etc. can be removed. In addition, when it is difficult to move with water 50 or the like from the rear, it is possible to perform washing by attaching a string-like body or the like to the hook portion 60a, performing a pulling operation from the front in the moving direction, and moving it. Further, as will be described later, it is also possible to adjust the water pressure of the bag body 62 using a flexible tube body connected in communication with the inside of the bag body 62.

  A part of the cleaning moving body 52 shown in FIG. 1 (c) is shown in cross section, and in the same manner as in FIGS. 1 (a) and 1 (b), a sponge 62 as a porous elastic member is placed on a rubber bag body 62. 64 is packed and water is contained in this sponge 64. The cleaning moving body 52 also has a fastener 60 and is formed with a hook portion 60a. Water, which is a fluid, is impregnated in the open cells of the sponge 64. Therefore, since the cleaning moving body 52 is the sponge 64 impregnated with water, the shape is maintained to some extent, and the cleaning moving body 52 can be easily introduced into the cleaning target section. Further, when the sponge 64 is deformed, it repels with a substantially constant reaction force, and the frictional resistance with the pipe line 12 does not increase. Therefore, the sponge 64 can move smoothly in the pipe line 12, and the pipe line 12 Even if there is a bend, there is no problem in the cleaning work.

  The cleaning moving body 54 shown in FIG. 1 (d) is formed by integrally forming cleaning ribs 66 on the surface of the bag body 62 of the cleaning moving body shown in FIG. 1 (c). The cleaning rib 66 is formed in a mesh shape on the surface of the cleaning moving body 54, and the direction in which the cleaning rib 66 extends has a predetermined angle with respect to the traveling direction. The height from the surface of the cleaning rib 66 is appropriately determined according to the pipe diameter of the pipe 12 to be cleaned, the degree of contamination, and the like. When the cleaning moving body 54 is moved in the pipe 12, the cleaning rib 66 effectively scrapes off deposits and the like on the pipe wall, and the pipe 12 can be effectively cleaned. In addition to this configuration, the cleaning rib 66 may have a configuration in which a linear protrusion is provided on the outer surface of the bag body 62, for example, a net-like body. In this case, when the cleaning moving body moves in the pipe 12, the mesh body rubs the inner wall of the pipe 12 and effectively removes deposits and the like in the pipe 12.

  The cleaning moving body 56 shown in FIG. 1 (e) uses a net 63 as a bag and a plurality of ice pieces 68 as a filler. The size of the ice piece 68 is larger than the size of the mesh of the mesh 63. A part of the ice piece 68 is exposed from the mesh, and the inner wall of the pipe 12 is rubbed and cleaned. Further, since the exposed ice pieces 68 are in contact with the deposit, the temperature of the deposit is changed to reduce the adhesion of the deposit to the tube wall, so that more effective cleaning is performed.

  The above-described cleaning moving body is an example, and various other configurations are conceivable. For example, it can be composed of an elastic body of a predetermined size that simply closes the conduit. As the elastic body, for example, rubber reinforced with fibers or polyurethane foam is preferable. Then, by forming the protrusion on the outer surface of the elastic body, the inner wall of the pipe line can be effectively rubbed when the elastic body moves through the pipe line, and the cleaning effect can be improved. Of course, gas, liquid, etc. can be used to move the cleaning moving body composed of the elastic body in the pipe line. In the case of traction, it is preferable to reciprocate the cleaning moving body. In addition, in the case where a bag is filled with a plurality of solid pieces as a filler, the cross-sectional shape in the moving direction is not a fixed shape like a conventional fixed pig, and the bag surface has irregularities due to the filler. Since it is formed, the inner wall of the duct 12 can be effectively rubbed.

  Next, a pipe line cleaning system using the cleaning moving body of the present invention will be described. FIG. 2 is a schematic explanatory view according to the first embodiment of the pipeline cleaning system using the cleaning moving body. The pipe line to be cleaned is the sewer pipe 12, and this sewer pipe 12 is buried at a predetermined depth from the ground. Further, the sewer pipe 12 is provided with manholes 16 and 18 for each predetermined section. The sewage 20 usually flows through the manhole 16, the sewer pipe 12, and the manhole 18. The sewer pipe 12 is exaggerated.

  In FIG. 2, a section between two manholes 16 and 18 is a section 14 to be cleaned of the pipe line 12. In FIG. 2, the pipe line 12 in the cleaning target section 14 shows a state where the inner diameter on the manhole 18 side is small as an example. In FIG. 2, the left manhole through which the sewage 20 flows is defined as an upstream manhole 16, and the right manhole is defined as a downstream manhole 18.

  The sewage 20 flows from the left side to the right side in FIG. 2, but during the cleaning operation, the sewage 20 is pumped from the upstream manhole 16 to the downstream manhole 18 by a sewage drain pipe and a drain pump (not shown), and then cleaned. It flows around the section 14.

  Before starting the cleaning work, perform the following setup work. A cleaning moving body 54 is introduced upstream of the cleaning target section 14. This introduction work can be performed in the upstream manhole 16.

  The cleaning moving body 54 is as shown in FIG. 1 (d), in which a rubber bag is filled with a sponge as a porous elastic member, and this sponge is impregnated with water. A flexible tube 38 is connected to the hook portion of the clasp of the cleaning moving body 54 in communication with the inside of the rubber bag, and the fluid in the bag is pressed by the pressure adjusting means 41. It is comprised so that the pressure of can be adjusted.

  FIG. 3 is a schematic explanatory diagram of pressure adjusting means for controlling the pressure of the fluid of the bag body. Pressure adjusting means 41 is installed on the ground. In the pressure adjusting means 41, there is an intake / exhaust pump 41a, and a tank 41b for accommodating a fluid of the same type as the fluid packed in the bag body of the cleaning moving body 54 is connected to the intake / exhaust pump 41a. A flexible tubular body 38 is attached to the bag body of the cleaning moving body 54 so as to communicate with the inside of the bag body, and the tubular body 38 is connected to the suction / exhaust pump 41a. The suction / exhaust pump 41a is provided with a pressure sensor 41d so that the pressure of the fluid inside the tube body 38 and the bag body can be detected. The controller 41c controls the suction / exhaust pump 41a so that the pressure of the fluid becomes a predetermined pressure, and injects the fluid from the tank 41b into the bag body or extracts the fluid from the bag body. .

  In the state where the cleaning moving body 54 is introduced into the pipe line 12 as described above, the pipe line 12 is simply closed, that is, the outer surface of the cleaning moving body 54 is substantially all around the inner wall of the pipe line 12. Since the inside of the pipe line 12 can be moved while maintaining a contact state at a constant pressure, when water or a fluid is injected from the rear side of the washing moving body 54, the pipe 12 slides inside the pipe line 12. It moves while rubbing or rubbing.

  Further, since the pressure in the bag fluid is always a predetermined value by the moving body pressure adjusting means 41, the pressure of the fluid in the cleaning moving body 54 moving in the pipe line 12 is maintained. Can always be maintained in an appropriate state. The state in which the pressure of the fluid of the bag body is appropriate means that the simple closed state between the cleaning moving body 54 and the conduit 12 is maintained in an appropriate state. That is, the strength with which the cleaning moving body 54 rubs against the inner surface of the pipe 12 can be made substantially constant in the pipe. Therefore, while the cleaning moving body 54 always maintains a constant cleaning effect, the cleaning moving body 54 smoothly moves in the pipe 12 when the inner diameter of the pipe 12 is different or when the pipe 12 is bent. Can be washed.

  That is, since the pressure adjusting means 41 is provided, when the diameter of the pipe 12 is changed, it is possible to adjust the pressure of the fluid according to the diameter. Even if the diameter of the passage 12 changes, the conduit 12 is bent, or even if dust or the like accumulates and movement becomes difficult, the simple closed state is always maintained, so that the inside of the conduit 12 It does not stop and it is possible to obtain a certain cleaning effect.

  In addition, since the cleaning mobile body 54 can move the cleaning mobile body 54 by pulling the tube body 38 from the front in the moving direction, the cleaning mobile body 54 does not move even if the internal pressure of the bag body is adjusted. If it does not move, it can be moved by the tube 38.

  As a setup before the cleaning operation, a sealing lid 15 is installed at the opening end of the pipe line 12 in the cleaning target section 14 on the side where the cleaning moving body 54 is introduced. The lid 15 may be made of any material such as metal or plastic so that water injected under pressure from the cleaning target section 14 does not leak. The lid 15 may be fixed using a reaction force support material or the like (not shown). An infusion communication tube 22 is attached to the lid portion 15 in a state where the inside of the cleaning target section 14 is communicated with the outside. On the other hand, in the manhole 18 on the downstream side, a discharge communication pipe 24 is attached in a state where the inside of the cleaning target section 14 is communicated with the outside. Further, a lid portion 17 is attached to an opening end portion of the pipe line 12 that is not a section to be cleaned in the downstream manhole 18. The lid portion 17 is provided with an opening / closing portion 17a, and the opening / closing portion 17a is in an open state from the start of cleaning until the cleaning moving body 54 approaches the downstream manhole 18. When the dust 42 pushed out by the cleaning moving body 54, the scraped deposit 43, and the like are collected, the opening / closing portion 17a is closed.

  Liquid injection means 30 is connected to the injection communication tube 22 as an injection device, and water 50 at room temperature is injected into the cleaning target section 14 through the injection communication tube 22. The liquid injecting means 30 is specifically a tank car or the like filled with water 50, and is provided with a water pump or the like (not shown). It is possible to change the injection pressure of the water 50 into the cleaning target section 14 by adjusting the water supply amount of the water pump. Most preferably, the cleaning moving body 46 is moved using the potential energy of the water 50 due to the height difference between the position where the pipe 12 is embedded and the ground.

  A suction pump 36 is attached to the discharge communication pipe 24, and sucks and discharges dust 42 pushed out by the cleaning moving body 54, scraped deposits 43, and the like. If the water 50 that has washed away the cleaning moving body 54 is also very dirty, it is sucked and discharged by the suction pump 36 and stored in the discharge tank 40.

  In the cleaning of the pipe line 12, after performing the setup before the cleaning operation as described above, the water 50 is injected into the cleaning target section 14 from the liquid injection means 30, and the cleaning moving body 54 is washed away in the pipe line 12. Is done. When the cleaning moving body 54 is moved in the pipe 12, the dust 42 in the pipe 12 is pushed forward together with the movement of the cleaning moving body 54, and the deposit 43 attached to the pipe wall is moved for cleaning. It is scraped off by the body 54. Even when the inner diameter of the pipe line 12 is small in the middle of the pipe line 12, there is no problem because the cleaning moving body 54 has deformability. That is, since the tube 12 is deformed according to the diameter of the pipe line 12 and maintains the simple closed state, the cleaning moving body 54 moves while maintaining the cleaning capability without being clogged in the pipe line 12. Furthermore, since the internal pressure of the bag body of the washing moving body 54 moving in the pipe line 12 can be adjusted by the moving body pressure adjusting means 41, the state of simple blockage between the washing moving body 54 and the pipe line 12 is always maintained. It can be maintained in an appropriate state. Therefore, even if the diameter of the pipe line 12 is changed or the pipe line 12 is bent, the cleaning moving body 54 is prevented from staying in the pipe line 12 and smoothly moves in the pipe line 12. It is possible to obtain a certain cleaning effect.

  The scraped deposits 43 and the like are discharged to the downstream manhole 18, sucked by the suction pump 36 and discharged to the discharge tank 40, and the cleaning is completed. Here, when it is difficult to push away the cleaning moving body 54 with the water 50, the cleaning moving body 54 is moved in the pipeline 12 by pulling the flexible tubular body 38 in the upstream manhole. Effective cleaning is also possible.

  According to the present embodiment, the cleaning moving body 54 has a rubber bag filled with a sponge 64 containing water, and is introduced into the cleaning target section 14 of the pipe line 12. The passage 12 is configured to have a size and a deformability so that the passage 12 can be simply closed, and the dust 42 in the conduit 12 and the deposits 43 attached to the tube wall are efficiently removed by flushing with water 50 from the rear. 12 is effectively cleaned. Since the cleaning moving body 54 is deformable, even when the pipe is bent, the cleaning moving body 54 moves without stagnation in the pipe 12, so that the cleaning operation is not hindered. . However, since the simple closed state is always maintained by the moving body pressure adjusting means 41, a constant cleaning effect can always be expected even if the diameter of the conduit 12 is changed or the conduit 12 is bent.

  FIG. 4 is a schematic explanatory diagram according to the second embodiment of the pipeline cleaning system using the cleaning moving body. The difference from the first embodiment is that the cleaning moving body 54 has a string-like body 39 in the moving direction of the cleaning moving body 54 in order to pull the cleaning moving body 54 forward and backward in the moving direction. Connected back and forth. The setup work before starting the cleaning work is substantially the same as the content described in the first embodiment, but the opening lid 15 may not be provided. However, the reel 33 or the like can be used to enable the string-like body 39 to be pulled smoothly.

  For cleaning the pipe line 12, the cleaning moving body 54 is introduced into the pipe line 23, and after the simple closing state of the pipe line 12 and the cleaning moving body 54 is ensured, the cleaning moving body 54 is moved to the cleaning target section 14. This is done by reciprocating along the conduit 12.

This reciprocation is performed as follows, for example. In order to alternately pull the string-like bodies 39 on the upstream manhole 16 side and the downstream manhole 18 side, a normal traction device or the like is installed. This traction device or the like can be constituted by an electric rotating drum, for example. The string-like body 39 wound around the electric rotating drum is alternately pulled in the opposite direction by rotating the rotating drum on the upstream manhole 16 side and the downstream manhole 18 side, and the cleaning moving body 54 is alternately pulled. Can be configured to do. Accordingly, the cleaning moving body 54 reciprocates in the pipe 12. Further, as the string-like body 39, the pipe body 38 of the first embodiment can be used to reciprocate while monitoring the pressure of the fluid of the cleaning moving body 54.

  In addition, as in the second embodiment, the moving cleaning body 54 shown in FIG. 1D is used, but a cleaning moving body having another configuration may be used. For example, a configuration in which a net-like body is used as the protruding portion on the rubber bag body 62 and the string-like body 39 is connected to the net-like body at the front and rear in the moving direction can be considered. In other words, the cleaning moving body made of a rubber bag housed in a net-like body as the protruding portion reciprocates in the conduit 12 when the string-like body 39 is pulled and moved, so that the cleaning movement is performed. As the body is moved through the conduit 12, the reticulated body effectively rubs or scrapes the tube wall, effectively cleaning the conduit.

  FIG. 5 is a schematic explanatory diagram according to the third embodiment of the pipeline cleaning system using the cleaning moving body. The difference from the second embodiment is that the cleaning moving body 54 is accommodated in the accommodating portion 55. A string-like body 39 is connected to the front and rear in the moving direction of the accommodating portion 55. The accommodating portion 55 is composed of a plurality of string-like bodies, for example, metal wires or resin ropes, and pulls the string-like bodies 39 connected to the front and rear in the moving direction in opposite directions. Then, it is comprised so that the volume of the accommodating part 55 may become small. When the volume of the accommodating portion 55 is reduced, the cleaning moving body 54 accommodated in the accommodating portion 55 is deformable, so that the diameter thereof is reduced.

  Therefore, when it becomes difficult to move the cleaning moving body 54 accommodated in the accommodating portion 55 in the middle of the pipe 12, the respective string-like bodies 39 are pulled in opposite directions to move the volume of the accommodating portion 55. It is possible to reduce the diameter of the cleaning moving body 54 by reducing the diameter of the cleaning moving body 54 so that the movement in the pipe 12 can be restored to a possible state. Naturally, the string-like body is formed of a flexible pipe body, and the internal pressure of the bag body of the cleaning moving body 54 moving in the pipe line 12 is adjusted by the moving body pressure adjusting means 41. You may do it. The internal pressure is preferably 0.003 to 0.03 MPa as described above.

  Alternatively, the accommodating portion 55 may be formed of a mesh-like body, and a cleaning moving body in which a mesh-like body is covered as a protrusion or a cleaning rib integrally formed may be accommodated. When the mesh body is covered as the projecting portion, the mesh body is doubled, the durability of the cleaning moving body is improved, and it can sufficiently withstand severe use. Note that these nets can be made of a material such as metal, resin, or cloth. Furthermore, it is also possible to adopt a configuration in which, for example, a cleaning moving body without a projecting portion is accommodated in the accommodating portion 55 and the mesh portion is covered with the accommodating portion 55. As described above, this net-like body can be made of a material such as metal, resin or cloth.

  FIG. 6 is a schematic explanatory diagram according to the fourth embodiment of the pipeline cleaning system using the cleaning moving body. The difference from the first embodiment is that after the cleaning moving body 54 is introduced into the conduit 12, a predetermined amount of a sherbet-like fluid 48 having ice particles and water is provided behind the cleaning moving body 54. The water 50 is filled and water 50 is injected under pressure from the rear of the fluid 48 to move the cleaning moving body 54 and the fluid 48. In addition, no pressure adjusting means for adjusting the pressure of the fluid of the cleaning moving body is provided. Since the fluid 48 has a cleaning action, the conduit 12 is cleaned twice by the cleaning moving body 54 and the fluid 48 as described later. The ratio of ice particles to water in the fluid 48 used is 7 to 9 to 3 to 1. That is, most are ice particles. The fluid 48 is appropriately added with salt, and the amount thereof is about 3 to 7% by mass.

  The setup work before the start of the cleaning work is substantially the same as that described in the first embodiment, but the fluid injection pipe 22 attached to the opening lid portion 15 has a fluid as an injection device 31. The injection means 28 and the liquid injection means 30 are connected. The fluid injection means 28 and the liquid injection means 30 are switched and selected by the control means 34 between the fluid 48 from the fluid injection means 28 and the room temperature water 50 from the liquid injection means 30, and the communication pipe for injection. 22 is continuously injected so that air is not mixed. The control means 34 is provided with a switching valve (not shown) and a control circuit (not shown) for changing the injection amount in order to enable the above-described operation.

  The fluid injection means 28 is a tank car or the like that is specifically packed with the fluid 48, and includes a snake pump (not shown) for injecting the fluid 48 into the section 14 to be cleaned. . By adjusting the discharge amount of the pump, the injection pressure of the fluid 48 into the cleaning target section 14 can be changed. The movement of the cleaning moving body 46 is most preferably performed using the potential energy of the water 50 due to the difference in height between the position where the pipe 12 is embedded and the ground as described above.

  In the fourth embodiment, the suction pump 36 connected to the discharge communication pipe 24 sucks and discharges not only the water 50 but also the fluid 48. Since the fluid 48 has a cleaning action, the fluid 48 sucked and discharged contains deposits 43 and the like in the cleaning target section 14. That is, in the fourth embodiment, the cleaning of the conduit 12 is performed by first moving the cleaning moving body 54 in the conduit 12 to scrape the deposits 43 and the like on the inner wall of the conduit 12. Thereafter, the deposit 43 left by the ice particles contained in the fluid 48 or the deposit 43 from which only the base portion remains is scraped off, and double cleaning is performed. Further, the ice particles contained in the fluid 48 have an effect of changing the temperature of the deposit 43 adhering in the pipe 12 and reducing the adhesion force of the deposit 43 to the pipe 12. The 12 cleaning is performed more effectively.

  FIG. 7 shows a procedure for starting a cleaning operation according to the present embodiment. First, in the upstream manhole 18, a cleaning moving body 54 suitable for cleaning the pipe 12 is introduced from the opening end of the pipe 12 upstream of the section 14 to be cleaned. In the present embodiment, as in the first embodiment, the cleaning moving body 54 has a structure in which a rubber bag is filled with a sponge containing water, and as described above, The moving body 54 simply closes the pipeline 12.

  Next, as shown in FIG. 7B, the lid 15 and the injection communication pipe 22 are attached to the opening end of the cleaning target section 14, and the fluid injection means 28 through the injection communication pipe 22 The fluid 48 is injected by a predetermined amount. Since the cleaning moving body 46 simply blocks the cleaning target section 14, that is, water can ooze out but most of the fluid 48 does not pass, the fluid 48 has a large amount of flowing forward. The cleaning target section 14 can be easily filled over a predetermined length. For this predetermined length, the inner wall of the pipe 12 in the section 14 to be cleaned is also washed by the fluid 48, so the degree of dirt in the pipe 12 and the fluid 48 are repeatedly pressurized and injected. It is determined appropriately according to the number of times of movement.

  FIG. 7 (c) shows that after the fluid 48 is filled to a predetermined length in the section 14 to be cleaned, the water 50 is injected into the liquid injection means in order to move the cleaning moving body 46 and the fluid 48 in the conduit 12. 30 shows the state of pressure injection. The pressurized injection of the water 50 is performed until the cleaning moving body 46 reaches the downstream manhole 18 in the cleaning target section 14. The water 50 uses tap water, but water such as sewage 20 or agricultural water can also be used. By doing so, the cost of work can be further reduced.

  When the cleaning moving body 46 introduced from the upstream manhole 16 reaches the downstream manhole 18, the cleaning moving body 46 is recovered. The recovery can be easily performed in the downstream manhole 18. Thereafter, the fluid 48 and the water 50 are sucked from the fluid discharge pipe 24 and collected in the drain tank 40. Note that the water 50 may flow downstream from the downstream manhole 18 as it is when there is little dirt.

  When the cleaning moving body 54 and the fluid 48 are moved in the pipe line 12 by the water 50 injected under pressure from behind, the dust 42 in the pipe line is first pushed forward by the cleaning moving body 54. The pipe wall deposit 43 is scraped off. Thereafter, the ice particles of the fluid 48 move while rubbing the wall of the passage 12 on the pipe wall, so that the washing of the conduit 12 can be effectively performed by the cleaning moving body 54 and the fluid 48. When the cleaning by the cleaning moving body 46 and the fluid 48 is repeatedly performed, the procedure shown in FIG. 7 may be repeated. In the present embodiment, a predetermined amount of fluid 48 is injected behind the cleaning moving body 54, and water 50 is injected under pressure from the rear of the fluid 48, so that the cleaning fluid 48 is economical. It is possible to use it. That is, since the cleaning moving body 46 is in the conduit 12 in a simple closed state, the fluid 48 can be easily placed in the conduit, especially in the case of conduit cleaning from upstream to downstream in the natural flow down pipe. This is because it can be charged.

  In the first to fourth embodiments, the diameter of the sewer pipe 12 is about 250 mm, and the length of the sherbet-like fluid 48 having ice particles and water in the fourth embodiment is about 0.5 to 3 m. The moving speed of the sherbet-like fluid 48 or the cleaning moving body 54 was set to 0.1 to 0.3 m / sec. Note that the moving speed can be slow immediately after the start of work and can be increased immediately before the work ends.

  According to the present embodiment, the rubber bag 62 is filled with a sponge 64 impregnated with water as a filler, and the cleaning moving body 54 in which the cleaning rib 66 is integrally formed on the surface of the bag 62 is provided. In addition to the effect of washing by the washing moving body 54, the washing with the sherbet-like fluid 48 having ice particles and water is performed at the same time. As a result, the pipe 12 is cleaned more effectively. However, by using the cleaning moving body 54, the sherbet-like fluid 48 having ice particles and water can be effectively used without waste. Therefore, the cleaning operation can be performed practically at low cost. In this embodiment, no pressure adjusting means is provided, but it goes without saying that the pressure adjusting means can be used.

  In the first to fourth embodiments described above, the cleaning mobile body of the present invention has been described by taking the sewer pipe 12 as an example. However, the present invention is not limited to these embodiments. That is, various changes can be made without departing from the spirit of the invention. For example, water pipes for cleaning, water pipes for agriculture, various pipes in factories, pipes for handling food, etc., household drain pipes, and the like may be used. In addition, water (tap water) is shown as a washing body to be washed away. However, when the liquid flowing through the pipe line to be washed is used as it is, for example, when washing a pipe line of food or the like, the pipe is used. It is possible to use treated water or reclaimed water of sewage when using foods etc. flowing through the road and washing sewer pipes.

12 Sewer pipe 14 Sections to be cleaned 15 and 17 Lid 16 Upstream manhole 18 Downstream manhole 22 Injection communication pipe 24 Discharge communication pipe 28 Fluid injection means 30 Liquid injection means 31 Injection device 34 Control means 36 Suction pump 38 Flexible Tube body 39 having stringiness 41 pressure adjusting means 46, 52, 54, 56 moving body for washing 48 fluid 50 water 55 containing portion 62 bag body 63 mesh body 64 sponge (porous elastic member)
66 Cleaning rib 68 Solid piece (granular aggregate)

Claims (14)

In the cleaning moving body that is introduced into the pipe line and is moved within the cleaning target section of the pipe line to clean the cleaning target section,
The cleaning mobile is
A cleaning moving body having a size that allows the pipe to be easily closed when introduced into a section to be cleaned of the pipe and has a deformability. The cleaning mobile is
The cleaning movable body according to claim 1, wherein the cleaning movable body is an elastic body having a predetermined size, and a protrusion is provided on an outer surface of the elastic body. The cleaning mobile is
The cleaning moving body according to claim 1, comprising a bag body of a predetermined size and a filler filled in the bag body.   The cleaning bag according to claim 3, wherein the bag is made of a watertight material, and the filler is a fluid.   The cleaning fluid according to claim 4, wherein the fluid is a sherbet having water or ice particles and water.   4. The cleaning moving body according to claim 3, wherein the filler is a porous elastic member impregnated with a fluid.   The cleaning mobile body according to any one of claims 3 to 6, wherein the bag body has elasticity.   The cleaning mobile body according to any one of claims 3 to 7, wherein the bag body is provided with a protruding portion on an outer surface.   The cleaning bag according to claim 3, wherein the bag is formed of a net-like body, and the filler is an aggregate of granular materials having a size that does not fall off from the mesh of the net-like body.   The cleaning moving body is configured such that a string-like body is connected to each of the front and rear in the moving direction of the cleaning moving body, and the moving body can be moved or reciprocated in the cleaning target section using the respective string-like bodies. The cleaning mobile body according to any one of claims 1 to 9, wherein the mobile body for cleaning is provided.   The cleaning moving body is housed in a housing portion in which a string-like body is connected to the front and rear in the moving direction, and the housing portion pulls the string-like body in directions opposite to each other. The cleaning mobile body according to claim 10, wherein a volume for storing the mobile body is reduced.   The cleaning moving body according to claim 11, wherein the housing portion is configured by a net-like body or a string-like body extending in parallel with the moving direction. In the pipe line washing system using the washing mobile object according to any one of claims 3 to 8,
A detection sensor for detecting the pressure of the fluid in the bag of the cleaning mobile;
Pressure adjusting means for adjusting the pressure by changing the amount of fluid in the bag based on a pressure signal from the detection sensor;
A pipeline cleaning system characterized by comprising: The pressure adjusting means is
A tank containing the fluid;
A flexible tube attached in communication with the interior of the bag;
An intake / exhaust pump for injecting / discharging the fluid from the tank to the bag through the tube;
A control unit for controlling the suction / exhaust pump based on a pressure signal of the detection sensor;
The pipeline cleaning system according to claim 13, comprising:

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