WO2021100344A1 - ライニング材を反転させる装置及び方法 - Google Patents

ライニング材を反転させる装置及び方法 Download PDF

Info

Publication number
WO2021100344A1
WO2021100344A1 PCT/JP2020/037990 JP2020037990W WO2021100344A1 WO 2021100344 A1 WO2021100344 A1 WO 2021100344A1 JP 2020037990 W JP2020037990 W JP 2020037990W WO 2021100344 A1 WO2021100344 A1 WO 2021100344A1
Authority
WO
WIPO (PCT)
Prior art keywords
opening
lining material
reversing
liquid
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/037990
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
達人 高嶋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shonan Plastic Manufacturing Co Ltd
Original Assignee
Shonan Plastic Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shonan Plastic Manufacturing Co Ltd filed Critical Shonan Plastic Manufacturing Co Ltd
Priority to JP2021558208A priority Critical patent/JPWO2021100344A1/ja
Publication of WO2021100344A1 publication Critical patent/WO2021100344A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/26—Lining or sheathing of internal surfaces
    • B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings
    • B29C63/36—Lining or sheathing of internal surfaces using tubular layers or sheathings being turned inside out
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water

Definitions

  • the present invention relates to an apparatus and method in which one end of a tubular lining material is folded back and airtightly attached to a reversing nozzle, and a reversing pressure is applied to the reversing nozzle to reverse the lining material.
  • the lining material is inserted by reversing it into the existing pipe or by pulling it in.
  • a lining material reversing device is used.
  • the lining material is wound into a roll and stored in a closed storage container, one end of the lining material is folded back and attached to an inversion nozzle, and compressed air is supplied to the storage container to invert the lining material. The configuration is described.
  • Patent Document 2 after drawing a lining material of a certain length into a chamber provided with an inversion nozzle and an inlet and an outlet for the lining material, the inlet is sealed, the outlet is opened, and compressed air is introduced into the chamber.
  • a configuration is described in which the material is fed and the lining material is inverted.
  • the outlet is sealed, the inlet is opened, and a new lining material of a certain length is drawn into the chamber, and the above-mentioned operation is performed. By repeating this, the lining material is continuously inverted and inserted into the existing pipe.
  • Patent Document 3 a certain amount of lining material is towed into the chamber by a rotary roller type traction mechanism, and a high-pressure fluid is injected into the chamber with the inlet of the chamber sealed and the outlet opened to inject the lining.
  • a configuration is described in which the material is inserted into the existing pipe while being inverted. Even in this configuration, after the inversion of a certain amount of the lining material is completed, the lining material can be continuously inverted and inserted into the existing pipe by alternately repeating the pulling of the new lining material and the inversion thereof.
  • Patent Document 1 has a drawback that the length of the lining material that can be inverted is limited because only the lining material stored in the storage container can be inverted. There is a problem that it is necessary to increase the storage volume of the storage container accordingly.
  • the lining material can be inverted without being limited by the length by alternately repeating the pulling and inversion of the lining material.
  • a mechanism for pulling in the lining material of a certain length is required, and the inlet and the outlet of the lining material are alternately opened in synchronization with the alternating operation of pulling in and reversing the lining material.
  • it is necessary to seal the seal and there is a problem that the mechanical burden and the energy loss increase.
  • the present invention has been made to solve such a problem, and the length of the lining material is not limited to the length of the lining material in which an accessory having a diameter smaller than that of the lining material is connected to the end portion of the lining material.
  • An object of the present invention is to provide a reversing device and a method capable of continuously reversing.
  • the present invention (claim 1) A device that airtightly attaches one end of a tubular lining material to a reversing nozzle and applies reversing pressure to the reversing nozzle to reverse the lining material.
  • the reversing nozzle is attached to an airtight sealed space formed above the liquid, which has an opening at the bottom with an opening through which the lining material can pass and the incompressible liquid is filled to a predetermined level above the opening.
  • Inverted container and A compressed gas source that supplies compressed gas to the closed space and inverts and discharges the lining material attached to the inversion nozzle to the outside of the inversion container.
  • the liquid in the liquid tank is supplied into the reversing container so that the liquid in the reversing container is maintained at the predetermined level by supplementing the liquid flowing out from the opening of the opening to the liquid tank under the action of the compressed gas.
  • the opening Equipped with a liquid supply pump,
  • the opening has a first opening having a sealing member having an opening through which the lining material can pass, and a second opening in which an opening communicating with the first opening and allowing the lining material to pass through is formed.
  • the second opening is provided with a seal valve that is displaced in a direction in which the opening of the second opening is sealed by receiving the hydraulic pressure of the liquid flowing out from the sealing member of the first opening.
  • the present invention (claim 9) It is a method in which one end of a tubular lining material is airtightly attached to a reversing nozzle and a reversing pressure is applied to the reversing nozzle to reverse the lining material.
  • a process of supplying compressed gas to the airtight sealed space and reversing and discharging the lining material attached to the reversing nozzle to the outside of the reversing container A step of supplying the liquid into the reversing container so that the liquid in the reversing container is maintained at the predetermined level by supplementing the liquid flowing out of the reversing container from the opening under the action of the compressed gas.
  • the opening has a first opening having a sealing member having an opening through which the lining material can pass, and a second opening in which an opening communicating with the first opening and allowing the lining material to pass through is formed.
  • the second opening is provided with a seal valve that is displaced in a direction in which the opening of the second opening is sealed by receiving the hydraulic pressure of the liquid flowing out from the sealing member of the first opening.
  • the compressed gas is supplied to the airtight space of the reversing container filled with the incompressible liquid to invert the lining material, and the liquid flowing out from the opening of the opening under the action of the compressed gas is the reversing container. Since it is replenished inside, the running material can be continuously inverted. Further, in the present invention, the seal valve provided after the seal member having an opening through which the lining material can pass is displaced in the closing direction by the hydraulic pressure of the liquid flowing out from the seal member, so that the lining material is used. The sealing function is maintained even if a small-diameter accessory is connected to the end of the.
  • FIG. 1 It is a perspective view which shows the appearance of the reversing device of a lining material. It is a perspective view which shows the appearance of the reversing apparatus when the liquid tank is removed from FIG. It is a perspective view when the reversing container is seen from the back. It is sectional drawing of the reversing container. It is a partial cross-sectional view which shows the clamped reversing nozzle. It is a perspective view which shows the clamp which fixes two members of a reversing container. It is a perspective view which shows the opening which is connected to a reversing container. It is sectional drawing of the opening connected to a reversing container.
  • the present invention is used when reversing a lining material for repairing an existing pipe buried in the ground such as an aged sewage pipe, but it can also be applied to an example of reversing a lining material for repairing other pipelines. ..
  • each member of the reversing device described below is made of metal such as stainless steel or aluminum.
  • the reversing container 1 has a hollow cylindrical portion 2, and a reversing nozzle 4 is attached to the upper portion thereof via a side pipe 3.
  • the reversing nozzle 4 is attached detachably by connecting the flange of the reversing nozzle 4 and the flange of the side pipe 3 with a plurality of clamps 5 in an airtight manner.
  • the clamp 5 has a 120-degree arc-shaped sandwiching portion 5a having a concave groove 5b into which the flange 4a of the reversing nozzle 4 and the flange 3a of the side pipe 3 are inserted, and both ends thereof.
  • the connecting plate 5c is fixed.
  • the flanges 3a and 4a are put together and inserted into the concave groove 5b of the clamp 5 to sandwich both flanges.
  • the remaining 240 degrees of each flange is sandwiched between two clamps 5 (not shown), both flanges 3a and 4a are sandwiched by a total of three flanges 5, and the reversing nozzle 4 is connected to the side pipe 3. .
  • Each clamp 5 can be fixed to each other by clipping the connecting plates 5c at both ends or by using the holes 5d formed in the connecting plates 5c, for example, by connecting to each other with a wire.
  • the clamp 5 is used not only for connecting the side pipe 3 and the reversing nozzle 4, but also for connecting other disc-shaped members.
  • connecting two disc-shaped members using a clamp 5 means clamping the two disc-shaped members by the method described above using a plurality of clamps 5 and airtightly connecting the two members.
  • FIGS. 1 to 3 in order to avoid complicating the drawings, the connection of each clamp member 5 is limited to showing the connecting portion by a virtual line.
  • the reversing nozzle 4 of this embodiment has a cylindrical shape outside the cylindrical portion 2, but inside the cylindrical portion 2, as shown in FIG. 4, it becomes a conical portion whose diameter increases toward the back. There is.
  • This conical portion has a function of a reducer, and since the conical portion is provided in the reversing container 1, the reversing port can be shortened and a large pressure resistance is not required. Therefore, the wall thickness of the reversing nozzle should be reduced. Can be done.
  • the side pipe 6 extends in the opposite direction, and the disk 7 is airtightly attached by a plurality of clamps 5.
  • the disk 7 is provided with a gas supply port 8 for supplying gas supplied from a compressed gas source, which will be described later, a barometer 9 for measuring the pressure inside the reversing container 1, and hot water for curing the lining material after the reversing work is completed.
  • a hot water supply port 16 for supplying hot water and a hot water discharge port 17 for discharging hot water are attached.
  • a mounting pipe 10 is provided on the upper part of the reversing container 1, and a cover 11 is connected to the mounting pipe 10 by using a clamp 5.
  • a cover 11 By opening the cover 11, the work required for reversing, such as loading the lining material, can be performed from above.
  • a transparent glass (not shown) into the cover 11 so that the inside of the reversing container 1 can be observed from above through the transparent glass.
  • a liquid supply port 18 for supplying an incompressible liquid, which will be described later, into the reversing container 1 is attached to the cylindrical portion 2.
  • the lower portion of the reversing container 1 is a hollow base 12 having an opening 12a formed on one surface thereof, and a hollow cylindrical portion 13 is provided on the upper portion of the base 12.
  • the flanges of the cylindrical portion 2 and the cylindrical portion 13 are bolted to each other, and the cylindrical portions 2 and 13 are connected to each other.
  • An opening 50 through which the lining material is passed is attached to the surface of the base 12 opposite to the reversing nozzle 4 via the connecting plate 14.
  • the small circles drawn on each member in each figure indicate the holes through which the bolts pass, and connecting the two members airtightly or liquidtightly with the fixing means of the bolts and nuts is called bolt tightening.
  • the reversing device has an airtight or liquid-tight structure as a whole by attaching each member with a clamp 5 or tightening a bolt.
  • the lining material 20 inverted by the reversing device 1 is a resin absorbent 20a reinforced with a tubular flexible non-woven fabric or glass fiber, and a thermosetting resin such as an unsaturated polyester resin or an epoxy resin.
  • the resin absorbent 20a may be formed in multiple layers instead of one layer.
  • a tow belt 20d is connected to the end of the lining material 20.
  • a hot water hose 21 for supplying hot water for curing the thermosetting resin is attached to the tow belt 20d via a connector 20e, and the end portion of the lining material 20 is covered with a sealing tube 20c.
  • the tow belt 20d, the connecting tool 20e, the hot water hose 21, and the like attached to the end of the lining material 20 are referred to as accessories of the lining material. All of these accessories have a smaller diameter than the lining material 20.
  • the vertical width h2 of the hot water hose 21 is the vertical width of the flattened lining material 20. The value is smaller than h1.
  • the hot water hose 21 has a large number of ejection holes and is guided into the existing pipe as the lining material 20 is inverted, and the lining material 20 in the existing pipe is cured by the hot water shower ejected from the ejection holes.
  • the hot water hose 21 is not provided with an injection hole, and hot water is supplied into the existing pipe from the tip of the hot water hose 21.
  • the reversing container 1 is arranged in a liquid tank 28 in which an incompressible liquid 26, for example, water or a hydraulic oil used for a hydraulic device, is stored in a vertically standing state.
  • the liquid tank 28 is provided with a guide roller 34 that is supported by the frame 30 and freely rotates, and a guide roller 35 that is supported by the frame 31 and freely rotates.
  • guide rollers 37 and 38 that freely rotate are provided inside the reversing container 1, and guide rollers 36 that rotate freely are also provided in the opening 50 described later.
  • FIGS. 1 and 2 show bearings 37'and 38'that support the guide rollers 37 and 38.
  • a liquid supply device that supplies the liquid 26 into the reversing container 1 is arranged outside the liquid tank 28, a liquid supply device that supplies the liquid 26 into the reversing container 1 is arranged.
  • a liquid supply pump 42 is used as the liquid supply device.
  • the liquid is water
  • a commercially available water supply pump is used as the liquid supply pump 42.
  • the liquid supply pump 42 pumps the liquid 26 in the liquid tank 28 through the liquid discharge port 40 and the pipe 41, and supplies the liquid 26 from the discharge port through the pipe 39 and the liquid supply port 18 into the reversing container 1.
  • a compressed gas source for supplying compressed gas for example, compressed air, compressed carbon dioxide gas, or the like is arranged in the vicinity of the liquid tank 28.
  • compressed air for example, compressed air, compressed carbon dioxide gas, or the like
  • the air compressor 44 supplies compressed air to the upper part of the liquid 26 in the reversing container 1 via the air hose 45 and the gas supply port 8.
  • a barometer 9 is attached in the vicinity of the gas supply port 8 to measure the atmospheric pressure of the supplied compressed air.
  • the compressed air pressure is set to a desired air pressure by controlling the flow rate adjusting valve of the air compressor 44.
  • An electrode type liquid level gauge 48 for measuring the liquid level of the liquid 26 in the reversing container 1 is attached to the reversing container 1.
  • the liquid level gauge 48 is attached to a partially transparent cylindrical portion whose upper end is connected to the gas space of the reversing container 1 and whose lower end is connected to the liquid space, and when the ground electrode and the detection electrode come into contact with the liquid. A current flows and the liquid level is detected.
  • the current of the liquid level gauge 48 is detected, the motor 42a of the liquid supply pump 42 is turned on and off, and the liquid level is controlled to a predetermined level.
  • the liquid level can also be adjusted by controlling the flow rate adjusting valve of the liquid supply pump 42. It is also possible to visually observe the liquid level in a partially transparent portion and manually turn on / off the motor 42a to control the liquid level to a predetermined level.
  • FIG. 7 to 11 show the configuration of the opening 50 connected to the bottom of the reversing container 1.
  • the opening 50 is divided into a first opening 51 having a fixed opening through which the flattened lining material 20 contacts and passes through, and a second opening 52 having a variable opening (FIG. 8).
  • the first opening 51 has a frame 80 on which the protrusion frame 80a is formed and a sealing member 83 sandwiched between the sandwiching plates 81 and 82, and the sealing member 83 is sandwiched between the sandwiching plates 81 and 82. It is fitted in the protrusion frame 80a of the frame 80.
  • the seal member 83 has, for example, a P-type packing structure, is composed of highly watertight rubber such as nitrile rubber (NBR), fluorosilicon rubber (FVMQ), and chloroprene rubber (CR), and has an opening 83a in the center. It is formed.
  • the opening 83a of the sealing member 83 has a horizontal width w3 that is substantially the same as or slightly larger than the horizontal width w1 (FIG. 12b) of the flattened lining material 20.
  • the vertical width h3 has a slit shape corresponding to the cross-sectional shape of the flattened lining material 20, which is substantially the same as or slightly larger than the vertical width h1 of the flattened lining material 20, and is flattened.
  • the lining material 20 is sized to come into contact with and pass through.
  • the upper and lower ends of the opening 83a in the vertical direction are curved portions 83b curved in an arc shape in the direction of the lining material 20 so as to make line contact with the lining material 20, whereby the lining material 20 smoothly makes the opening 83a. Can pass.
  • an unavoidable gap is created between the opening 83a and the lining material 20 passing through the opening 83a. Since the reversing container 1 is filled with an incompressible liquid 26, for example, water, when a high pressure is applied to the liquid, the liquid 26 is external from the reversing container 1 through this gap or a portion that is not sufficiently in contact with the liquid 26. Leaked into. In order to prevent this outflow and improve the liquid sealing property, the opening 83a is shaped so that the flow path area of the liquid flowing through the gap is as small as possible, that is, the flow path resistance is increased.
  • an incompressible liquid 26 for example, water
  • the sealing member 83 has a function of smoothly passing the lining material, and at the same time, prevents the liquid 26 from leaking through the gap between the lining material 20 and the opening 83a when the lining material passes through the opening 83a. It has a function. Further, since the arc-shaped curved portion 83b is curved in the direction of the second opening 52 and extends in a lip shape, it is a lip-type sealing member.
  • the frame 80 is detachably attached to a rectangular parallelepiped box 56 containing an opening / closing opening 53, which will be described later, with a bolt 85 (FIG. 7) via a sealing member 84 made of the same material as the sealing member 83. Therefore, when lining materials having different diameters are inverted, a sealing member having an opening corresponding to the cross-sectional shape of the flattened lining material is attached to the frame 80, and the frame 80 is fixed to the box 56. It can be replaced with a seal member compatible with lining materials of different diameters.
  • the second opening 52 communicates with the first opening 51, and the second opening has a rectangular parallelepiped box 90 in which one side is open, the middle frame 90a is fixed to the other side, and the recess 90b is formed in the upper portion. ..
  • a rectangular opening 90c having a horizontal width of w4 and a vertical width of h4 is formed in the box 90 by the middle frame 90a and the recess 90b.
  • the opening 90c is larger than the opening 83a of the sealing member 83 and has a size that allows the flattened lining material 20 to pass through.
  • a seal valve that rotates around a pin 91 (FIG. 8) attached to both sides is attached to the opening 90c side of the box 90. Since the seal valve is composed of a rectangular plate having a horizontal width of w5 and a vertical width of h5, which is larger than the opening 90c so that the opening 90c can be closed, the seal valve is hereinafter referred to as a valve plate 92. explain.
  • valve plate 92 is displaced in the direction in which the opening 90c is sealed by the action of the hydraulic pressure of the outflowing liquid 26.
  • the valve plate 92 has the vertical position (first position) shown in FIG. 10 in which the opening 90c is closed and minimized from the horizontal position (first position) shown in FIG. 9 where the opening 90c is opened to the maximum. Rotate between (second position). In this way, the valve plate 92 rotates about the pin 91 to change the fluid passage, and thus can also be called a butterfly valve.
  • the second opening 52 is attached to the first opening 51 using the clamp member 95.
  • the clamp member 95 has an upper arm 95a fixed to the fixing member 98 attached to the protrusion 90d of the box 90, and a lower arm 95b fixed to the fixing member (invisible) similar to the fixing member 98.
  • the clamp member 95 clamps the second opening 52 to the first opening 51 by tightening the bolt 97 and the nut 95c which are bearing by the bearing 93 fixed to the frame 80 of the first opening 51.
  • remove the bolt 97 and the nut 95c remove the upper arm 95a and the lower arm 95b from the fixing member 98, and then attach the clamp member 95 to the support shaft 96. Is rotated around and moved to the position indicated by the virtual line.
  • An opening / closing opening 53 capable of opening and closing the opening through which the lining material 20 passes is provided between the reversing container 1 and the first opening 51, for example, a path through which the lining material 20 passes.
  • the opening / closing opening 53 is composed of an upper block 66 in which the moving plate 65 is bolted and a lower block 68 in which the fixing plate 67 is bolted, and the holding plate 55 is formed. It is arranged in a hollow box 56 attached to the connecting plate 14 via.
  • the frame 80 described above is attached to the rear surface of the box 56 via the seal member 84, and the lower block 68 is fixed to the bottom plate 59 attached to the bottom of the box 56.
  • a columnar portion 70 is attached to the upper part of the box 56. Inside the cylindrical portion 70, a rod 72 that rotates by operating a handle (not shown) fitted in the protrusion 71 and a connecting plate 73 that moves up and down by the rotation of the rod 72 are housed.
  • the upper block 66 is attached to the lower end of the connecting plate 73, and is interlocked with the connecting plate 73 that moves up and down by operating the handle, along the guide rod 74 (FIG. 9) penetrating the upper block 66 and the lower block 68. Move up and down.
  • a variable opening is formed between the upper block 66 and the lower block 68 by the vertical movement of the upper block 66.
  • the opening / closing type opening 53 is used to manually close the opening and prevent the liquid leakage when a failure occurs in the first opening 51 and the second opening 52 and the liquid leakage increases. Leak.
  • a guide roller 36 for guiding the lining material 20 is provided in the box 56.
  • FIG. 11 shows the main members constituting the opening 50 in an exploded manner. Each member is mounted so that the centers of the openings formed in each are aligned, the horizontal and vertical sides of the openings are aligned with each other, and the incompressible liquid does not leak.
  • FIG. 15 is a diagram for explaining the operation and function of the reversing device, the arrangement, size, etc. of each element may not be the same as those shown in other drawings, and some of them may be omitted or exaggerated. It has been done.
  • the reversing container 1, the liquid tank 28, the liquid supply pump 42, the air compressor 44, etc. are mounted on the loading platform of the work truck (not shown) and transported to the site in the state shown in FIG. 4 is moved to a position so as to come near the manhole 110 continuous with the existing pipe 111 to be lined.
  • the lining material 20 is guided to the opening 50 via the guide rollers 34 and 35, and is passed through the first opening 51 and the second opening 52.
  • the upper block 66 of the opening / closing opening 53 is raised to form an opening through which the lining material 20 can pass between the opening / closing opening 53 and the lower block 68.
  • the lining material 20 is guided to the reversing nozzle 4 via the guide rollers 37 and 38, and one end thereof is folded back and airtightly attached to the reversing nozzle 4.
  • the cover 11 is removed, the lining material 20 can be guided from the upper part of the reversing container 1, so that the lining material 20 can be easily loaded into the reversing nozzle 4.
  • the liquid 26 is supplied into the liquid tank 28, the liquid supply pump 42 is driven to exceed the opening 90c of the second opening 52, and the liquid 26 is reversed to a predetermined level 26a where the liquid 26 does not flow into the reversing nozzle 4. It is supplied to the container 1 to form an airtight closed space above the liquid. At this time, the liquid 26 is supplied so that the liquid 26 in the liquid tank 28 becomes the level 26b lower than the level 26a.
  • the hot water supply port 16 and the hot water drain port 17 are not used when the lining material is inverted, they are airtightly closed with caps 16a and 17a so that air does not leak.
  • the inside of the reversing container 1 is separated into a gas space and a liquid space, and an airtight sealed space is formed above the liquid 26.
  • the air compressor 44 is driven to supply compressed air to the closed space of the reversing container 1.
  • the compressed air acts on the reversing nozzle 4 as a reversing pressure, so that the lining material 20 attached to the reversing nozzle 4 is outside the reversing container 1 as shown by the virtual line. It is inverted and discharged, and is inserted into an existing pipe 111 such as a sewage pipe via a manhole 110 and a bent pipe 112.
  • the lining material 20 when the lining material having an outer diameter of 200 mm is inverted, as shown in FIG. 12b, when the lining material 20 is flattened, the width w1 becomes about 265 mm and the width (thickness) h1 becomes about 10 mm.
  • compressed air of, for example, about 0.7 Mpa is applied to such a lining material 20
  • the lining material 20 is inverted from the reversing container 1 at a speed of about 3 m / min and inserted into the existing pipe 111.
  • the valve plate 92 of the second opening 52 has a lining in which the tip 92a of the valve plate 92 passes through the opening 90c, as shown in the upper part of FIG. Rotate until it comes into contact with the material 20.
  • the valve plate 92 since the valve plate 92 does not completely seal the opening 90c, the liquid 26 flows out of the reversing container 1 from the opening 90c, and the liquid 26 in the reversing container 1 drops below the predetermined level 26a. Due to this level decrease, the liquid supply pump 42 operates and the liquid 26 in the liquid tank 28 is replenished in the reversing container 1, so that the liquid in the reversing container 1 is maintained at a substantially predetermined level 26a.
  • the compressed air can be continuously used for reversing the lining material 20, and the lining material can be continuously reversed without being limited to the length of the lining material 20.
  • the reversal efficiency of the lining material 20 depends on the smoothness of the lining material 20 passing through the seal member 83 and the sealing function of the seal member 83.
  • the smoothness and the sealing function are contradictory functions. In order to enhance the smoothness, for example, if the opening 83a of the sealing member 83 is increased, the smoothness is increased, but the sealing function is lowered.
  • the accessory connected to the end portion of the lining material 20 has a smaller diameter than the lining material 20, so that the outflow of liquid from the seal member 83 increases.
  • the pressure of the flowing liquid rises. Due to this increase in hydraulic pressure, the valve plate 92 rotates to the vicinity of the vertical position as shown in the lower part of FIG. At this position, the hot water hose 21 is pressed against the bottom of the box 90 and the tip 92a of the valve plate 92 comes into contact with the upper part of the hot water hose 21, so that the opening 90c is sealed and the liquid from the opening 90c Leakage is reduced.
  • the sealing function when the small-diameter hot water hose 21 passes through the opening 90c is maintained, and the lining material 20 is continuously inverted until the end of the lining material 20 reaches the end of the existing pipe to be lined. Can be done.
  • the opening / closing opening 53 is provided with a sealing function.
  • the opening / closing opening 53 is arranged between the reversing container 1 and the first opening 51, but after another path, for example, between the first and second openings 52, 53, or after the second opening 52. It can also be placed.
  • the lining material 20 is inverted over the entire length and inserted over the entire area of the existing pipe to be lined, and is inverted when the tip of the hot water hose 21 connected to the end of the lining material protrudes from the end of the existing pipe. The work is finished.
  • the liquid 26 in the reversing container 1 is removed, the end of the hot water hose 21 is guided to the hot water supply port 16, and hot water is supplied from the hot water source into the hot water hose 21.
  • Hot water is ejected from the hot water hose 21 onto the lining material 20, the lining material 20 is cured, and the lining work is completed.
  • the running material is cured without using the hot water hose 21, hot water is directly supplied into the reversing container 1 from the hot water supply port 16 and the inverted lining material 20 is filled with hot water. To cure the lining material.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
PCT/JP2020/037990 2019-11-20 2020-10-07 ライニング材を反転させる装置及び方法 Ceased WO2021100344A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021558208A JPWO2021100344A1 (https=) 2019-11-20 2020-10-07

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-209403 2019-11-20
JP2019209403 2019-11-20

Publications (1)

Publication Number Publication Date
WO2021100344A1 true WO2021100344A1 (ja) 2021-05-27

Family

ID=75979997

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/037990 Ceased WO2021100344A1 (ja) 2019-11-20 2020-10-07 ライニング材を反転させる装置及び方法

Country Status (3)

Country Link
JP (1) JPWO2021100344A1 (https=)
TW (1) TW202120302A (https=)
WO (1) WO2021100344A1 (https=)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62189141A (ja) * 1986-02-14 1987-08-18 Yano Giken Kk 管内面補修用ライニングホ−スの装填装置
JP2017189971A (ja) * 2016-04-15 2017-10-19 エスジーシー下水道センター株式会社 エンドレス型の管ライニング材反転装置および管ライニング材反転方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62189141A (ja) * 1986-02-14 1987-08-18 Yano Giken Kk 管内面補修用ライニングホ−スの装填装置
JP2017189971A (ja) * 2016-04-15 2017-10-19 エスジーシー下水道センター株式会社 エンドレス型の管ライニング材反転装置および管ライニング材反転方法

Also Published As

Publication number Publication date
TW202120302A (zh) 2021-06-01
JPWO2021100344A1 (https=) 2021-05-27

Similar Documents

Publication Publication Date Title
JP7317378B2 (ja) ライニング材を反転させる装置及び方法
US9846109B2 (en) Fluid sampling
JP2003502156A (ja) コーティングデバイスをライブガスパイプライン中およびライブガスパイプラインを通して挿入および推進するための方法および装置
AU2015242531B2 (en) System and method of manufacturing a field joint coating
US20100295198A1 (en) Apparatus and method for lining a pipe
US4415390A (en) Internal wrapping method and apparatus
WO2021100344A1 (ja) ライニング材を反転させる装置及び方法
KR102020544B1 (ko) 다양한 방식으로 이액 충진 및 토출이 가능한 이액 혼합 토출 장치
US4125089A (en) Apparatus for treating pipes
AU2009289184B2 (en) Impregnation plant and method
JP2017127981A (ja) 反転装置およびライニング材反転方法
KR20070047211A (ko) 관 라이닝재의 관로 내로의 반전 삽입방법 및 관라이닝재의 압압장치
JP2021171956A (ja) ライニング材を反転させる装置及び方法
US5073224A (en) Apparatus for injecting a chemical barrier into a surface aperture
JP2021091100A (ja) ライニング材を反転させる装置
JPH01242231A (ja) 管路補修工法におけるライナー反転装置
CN118961091B (zh) 模拟水下压力的测试罐及其测试方法
JP6022919B2 (ja) ライニング材の反転方法および反転装置
FI94156C (fi) Nestemäisessä väliaineessa hyödynnettävä pinnoitusmenetelmä sekä laite pinnoituksen suorittamiseksi nestemäisessä väliaineessa
TW202120301A (zh) 內襯材的反轉方法
RU2025634C1 (ru) Устройство для герметичного перекрытия трубопровода
JP2813675B2 (ja) 既設管ライニング補修工法の樹脂注入装置
KR102040921B1 (ko) 유체 공급 펌프의 잔량 누출 방지 밸브
JP4191553B2 (ja) 管路用筒状ライニング材の脱泡装置及びその脱泡方法
JPH0516237A (ja) 帯状袋体の反転方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20890302

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021558208

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20890302

Country of ref document: EP

Kind code of ref document: A1