JP3141722U - Piping lining equipment - Google Patents

Abstract

Provided is a pipe lining device in which there is no risk of leakage from the liner layer to the inside even if a nest or the like occurs in the liner layer, and the construction work of the liner layer proceeds efficiently and quickly.
When a lining cloth pipe 10 is constructed, a resin tube 13 is integrally adhered to the inner peripheral portion of the lining cloth pipe 10 to form a liner layer 7, so that a nest or the like is generated in the liner layer 7. However, there is no possibility that water leakage is sealed by the resin tube 13 and oozes inward from the liner layer 7. Since the resin tube 13 becomes a waterproofing membrane so that hot water does not enter the liner layer 7, the hot water can be brought into contact with the liner layer 7 immediately after the liner layer 7 is applied and dried. It is possible to shift to the work process, and the construction work can be made more efficient.
[Selection] Figure 3

Description

  The present invention relates to a piping lining apparatus used for painting in piping such as buried pipes, drainage pipes, and water supply pipes after cleaning in an apartment house or the like.

  Many types of foreign matter such as food residues, oils and fats, used detergents, hair, gravel and earth and sand adhere to and accumulate on pipes such as buried pipes and water supply and drainage pipes placed inside and outside the building, forming scale substances with rust. is doing. In order to remove the odor and restore the function of the pipe, the pipe is periodically cleaned using a cleaning device to completely remove the scale material adhering to the pipe. After cleaning the pipe, in order to recover and rehabilitate the hygiene and durability of the pipe, a coating with a predetermined thickness is applied in a layer form in the pipe by a lining device (see, for example, Patent Document 1).

As shown in FIG. 8 as an example, the lining device of Patent Document 1 has a lining cloth tube 50 that can be turned upside down connected to a cable body 51 together with a resin tube 49. As the driving pressure is supplied into the pipe 52 and the cable body 51 is fed out, the inner peripheral surface of the lining cloth pipe 50 reversed to the front and back is moved in the depth direction while being in close contact with the inner wall of the pipe 52. The liner 49 is formed by collecting the tube 49 to the outside.
JP 2004-291605 A

  For apartments, etc., considering the convenience of residents, if the lining device is operated in the morning, it is necessary to finish the construction work at dusk. Is required. For the convenience of the resident, when the liner layer is applied quickly, the liner layer may be insufficiently dried, and it is assumed that a nest or the like is generated inside. With long-term use, water leakage due to the nest may ooze out into the liner layer.

  The present invention has been made in view of the above circumstances, and its purpose is to prevent the leakage of water from the liner layer to the inside even if a nest or the like is generated in the liner layer, and to efficiently apply the liner layer. It is an object of the present invention to provide a piping lining apparatus that is suitable for a resident such as a housing complex, and that is advanced quickly.

(About claim 1)
In a piping lining device, a lining cloth pipe that is impregnated with a liquid paint and can be turned upside down is pressed with the feeding operation of the cable body, and the inner peripheral surface of the lining cloth pipe turned upside down is applied to the inner wall of the pipe. While in close contact, the liner layer is formed by moving in the depth direction of the pipe in an inverted state.
A resin tube with a length corresponding to the lining cloth tube is provided, covers the outer periphery of the lining cloth tube, reverses with the lining cloth tube, and is integrally attached to the inner periphery of the inverted lining cloth tube In close contact with each other to form the inner surface layer of the liner layer.

  During the construction work of the lining cloth pipe, the resin tube is in close contact with the inner periphery of the lining cloth pipe to form the inner surface layer of the liner layer. There is no possibility that water leaks from the tube and oozes inward from the liner layer.

Since the resin tube becomes a waterproof membrane so that hot water does not enter the liner layer, when the liner layer is dried and hardened with hot water, the hot water is brought into contact with the liner layer immediately after the liner layer is applied and dried. Can do.
Unlike the case where a resin tube is not provided and the liner layer has to be dried to some extent and hot water must be poured into the liner layer, the process can proceed to the next work step quickly in a short time.

  As a result, the construction work of the liner layer on the piping has become efficient and quick, and when the resident comes home from the company, the water environment such as a washing machine, bathroom, kitchen, washroom or basin is stored. The liner layer suitable for the convenience of residents such as housing complexes can be constructed.

(About claim 2)
The lining cloth tube is made of a flexible woven fabric containing glass fibers and chemical fibers such as polyethylene. For this reason, the lining cloth pipe becomes a toughness cloth which is robust and excellent in durability, and can be used for protecting pipes over a long period of time.

(Claim 3)
A resin tube is provided that forms a liner layer by being pressed and adhered to the inner peripheral surface of the paint layer by expansion of a pressurized balloon inserted into a pipe having a paint layer formed on the inner peripheral surface by the paint.

During construction of the liner layer, the resin tube is pressed and brought into close contact with the inner peripheral surface of the paint layer by expansion of the pressurized balloon, so that the resin tube exhibits a function of maintaining the shape of the paint layer.
For this reason, immediately after the liner layer is provided on the inner peripheral surface of the pipe, the liquid paint does not flow down along the inner peripheral surface, and the lower surface portion of the liner layer does not increase in thickness. A thick liner layer can be formed. In addition, with the provision of the resin tube, the same effect as in the first aspect can be obtained.

(About claim 4)
The resin tube is made of urethane resin, nylon resin or natural rubber.
In this case, when the lining cloth tube is impregnated with an epoxy resin, the resin tube becomes more compatible with the lining cloth tube, and the adhesion to the lining cloth tube is improved and it becomes easy to integrate.

(Claim 5)
The resin tube is a spiral tube formed by rolling a belt-shaped resin plate into a spiral shape.
In this case, the drainage in the pipe can be quickly caused to flow along the spiral joint of the spiral tube.

(About claim 6)
A large number of minute protrusions are formed on the outer surface of the resin tube. In this case, since the minute protrusions of the resin tube bite into the paint layer, it contributes to prevention of the resin tube from being displaced with respect to the paint layer.

(About claim 7)
Spiral ridges are formed on the outer surface of the resin tube. In this case, since the ridges bite into the paint layer, the same effect as in the sixth aspect can be obtained.

(About claim 8)
A hot water supply circulation means is provided for circulating and flowing hot water brought into direct contact with the resin tube after the liner layer is constructed.
In this case, since the paint layer can be dried with hot water immediately after the liner layer is applied, it is possible to quickly move to the next work process in a short time, and the work efficiency is improved.

  In the present invention, at the time of construction work of the lining cloth pipe, the resin tube is integrally adhered to the inner peripheral portion of the lining cloth pipe to form the inner surface layer of the liner layer. For this reason, even if a nest or the like is generated in the liner layer, there is no possibility that water leaks are sealed by the resin tube and oozes out into the liner layer, and a water leak preventing effect can be achieved.

  1 to 3 show a first embodiment of the present invention. FIG. 1 shows an example of lining construction in a drain pipe of a building H, which has a vertical vent pipe 1, a sewage main pipe 2 and a miscellaneous drain main pipe 3 communicating with an external dredger 5 as pipes. From the miscellaneous drainage main pipe 3, an indoor horizontal pipe 4 communicating with each floor 1F to 12F is provided.

  As shown in FIG. 2, the indoor horizontal pipe 4 of each floor 1F to 12F has a pipe network 6 having a kitchen drain 6b, a wash drain 6c, a laundry drain 6d and a bathroom drain 6e on one end side as shown in FIG. Provided. Prior to lining construction of the piping network 6, the piping network 6 is cleaned together with the ventilation pipe 1, the sewage main pipe 2 and the miscellaneous drainage main pipe 3. It is recovered by a pipe rehabilitation vehicle (VacL machine) Va (see arrows A, B, C, D, E).

FIG. 3 shows a lining method in which the inner wall 6a of the pipe network 6 is coated as a liner layer 7 after cleaning. The paint is a liquid that is impregnated with a coloring pigment or an epoxy resin. The lining cloth tube 10 is made of a flexible woven fabric containing glass fibers and chemical fibers such as polyethylene, and constitutes a toughness cloth that is robust and excellent in durability as a coating layer.
This lining cloth pipe 10 has an outer diameter that can be arbitrarily set within a range of 1 to 4 mm in thickness, and this outer diameter becomes a dimension according to the inner diameter of the pipe network 6 and is impregnated with a paint on the front and back sides. It is set so that it can be reversed.

  The lining cloth pipe 10 impregnated with the paint is a reversing machine via a wire, a rope or a string-like cable body 8 inserted through the pressure feed pipe 20 in a state where the outer peripheral portion is covered with the urethane-based resin tube 13. 18 is wound around 18 winding portions 18a. The resin tube 13 is, for example, a translucent cylindrical body having a thickness of about 0.1 to 0.5 mm, and the inner diameter dimension is set substantially equal to the outer diameter of the lining cloth tube 10. The thickness of the resin tube 13 is not limited to about 0.1 to 0.5 mm, and can be variously changed depending on the use situation and the inner diameter dimension of the piping network 6.

The resin tube 13 may be made of a nylon resin or natural rubber, in addition to a urethane resin that is familiar to the epoxy resin. When synthetic rubber (ACM, NBR, IR, EPM, EPDM, ECO, CR, SBR, BR, FKM, IIR) is used for the resin tube 13, the silicon rubber is excluded.
In the reversing step, the lining cloth tube 10 is drawn out from the winding portion 18 a, and the base end portion of the lining cloth tube 10 is turned over together with the resin tube 13 so as to be fitted into the piping network 6.

  One end portion 8 a of the cable body 8 is releasably fitted and connected to the distal end opening portion 10 A of the lining cloth tube 10 together with the distal end portion 13 A of the resin tube 13. The length dimension of the resin tube 13 is set according to the length of the lining cloth tube 10, and is slightly longer than the lining cloth tube 10 in this embodiment.

  When the cable body 8 is disconnected from the lining cloth tube 10, the resin tube 13 is integrated with the lining cloth tube 10, and the tip opening 10 A of the lining cloth tube 10 is firmly attached to the inner peripheral surface of the piping network 6. It can be pressed against. In the pressure application step, as indicated by an arrow F in FIG. 3, a moving force in the depth direction of the piping network 6 is applied to the lining cloth tube 10 by the driving pressure of the blower 31 </ b> A to press the lining cloth tube 10.

  The resin tube 13 is in close contact with the lining cloth tube 10 and integrally presses the lining cloth tube 10 against the inner peripheral surface of the pipe network 6, and bonds a plurality of thin film cylinders made of different materials. May be formed in a plurality of layers. About the drive pressure supplied to the piping network 6, you may make it operate the pump Pm of FIG. 2 and the universal piping renovation vehicle Va, and give a suction pressure to the piping network 6 instead of the air blower 31A.

  A remote control camera (not shown) is arranged from the reversing machine 18 to the lining cloth tube 10, and the feeding manner of the lining cloth tube 10 and the resin tube 13 with respect to the pipe network 6 is determined by the amount of movement of the cable body 8. It can be monitored by the monitor P.

  In this case, a branch pipe 11 is connected to the pipe network 6 as another pipe. This is to show a mode in which the communication hole 7a for the opening 11B of the branch pipe 11 is formed at the joining position 11A where the pipe network 6 joins the branch pipe 11 in the next step described later.

In the moving step, the lining cloth pipe 10 is reversed to the inside together with the resin tube 13 and is moved in the depth direction of the piping network 6 along the inner peripheral surface 6a of the piping network 6. That is, the outer peripheral surface of the inverted lining cloth tube 10 is pressed and adhered to the inner wall 6a of the pipe network 6, and the outer peripheral surface of the resin tube 13 is attached to the inner peripheral surface of the inverted lining cloth tube 10 while being inverted. The inner surface layer is integrally formed by close contact.
In the curing step, hot water or hot air generated by a boiler, a pressure feeding device (not shown) or the like is sent to the piping network 6 to dry and cure the lining cloth tube 10.

  Thus, the liner layer 7 (for example, with a thickness of about 2 to 3 mm) is formed in which the lining cloth tube 10 and the resin tube 13 are turned over and are in close contact with the inner wall 6a of the piping network 6. At the end of the lining construction, the connection of the one end 8a to the tip opening 10A of the lining cloth pipe 10 is released, and the cable body 8 is wound around the winding portion 18a and pulled out of the piping network 6 {FIG. ) Arrow N}.

Along with this, as shown by a two-dot chain line in FIG. 3A, the tip opening 10A of the lining cloth tube 10 becomes free as a reversal end and closely contacts the terminal opening 6A of the piping network 6.
At this time, due to the dimensional relationship between the resin tube 13 and the lining cloth tube 10, the lower end portion of the resin tube 13 protrudes to the outside from the terminal opening portion 6 </ b> A of the piping network 6 and the tip opening portion 10 </ b> A of the lining cloth tube 10. The tip surplus portion 13a is formed {refer to the two-dot chain line in FIG. 3A}. As shown in FIG. 3 (b), the distal end surplus portion 13 a is cut so that the distal end portion 13 A is flush with the end opening portion 6 A of the piping network 6 and the distal end opening portion 10 A of the lining cloth tube 10.

  At the time of lining construction, the inner peripheral surface of the lining cloth tube 10 is brought into close contact with the inner wall 6a of the piping network 6 by applying driving pressure to the piping network 6 and moving the lining cloth tube 10 and the resin tube 13 while reversing. The uniform liner layer 7 is formed with the resin tube 13 as the inner surface layer. As a result, cracks in the pipe network 6, joints such as welding, pinholes, corrosion holes, and the like are completely closed by the construction of the liner layer 7, and the pipe network 6 is repaired and repaired.

  In the above configuration, the resin tube 13 is integrally adhered to the inner peripheral portion of the lining cloth tube 10 to form the inner surface layer of the liner layer 7 when the lining cloth tube 10 is constructed. Even if this occurs, there is no possibility that water leakage is sealed by the resin tube 13 and oozes inward from the liner layer 7.

Since the resin tube 13 becomes a waterproof film so that hot water does not enter the liner layer 7, when the liner layer 7 is dried and cured with hot water, the hot water is in contact with the liner layer 7 immediately after the liner layer 7 is applied. Can be drained to dry.
Unlike the configuration in which the resin tube 13 is not provided and the liner layer 7 waits for the liner layer 7 to dry to some extent, and hot water must flow through the liner layer 7, it is possible to quickly move to the next work process in a short time. .

  That is, since the liner layer 7 can be dried by flowing hot water immediately after the construction of the liner layer 7, the process moves to the next step without losing time and a working robot with a cutter (not shown) is introduced into the pipe network 6. In the position corresponding to the opening 11B of the branch pipe 11, the communication hole 7a can be formed in the liner layer 7 as shown in FIG.

  As a result, the construction work of the liner layer 7 on the pipe network 6 can be performed efficiently and quickly, and when the resident finishes work, etc., he / she returns to the washing machine, bathroom, kitchen, washroom or The use of a water basin such as a water basin can be performed as usual, and the liner layer 7 suitable for the convenience of residents such as a housing complex can be constructed.

4 and 5 show a second embodiment of the present invention. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and only different parts will be described.
In Example 2, as shown in FIG. 4A, when the liner layer 7 is constructed, the coating material 14 is supplied in advance into the pipe network 6 having both ends opened, and a parachute bag 15 is provided. Is used. The bag body 15 is disposed in the pipe network 6 and is connected to the cable body 8 that forms a wire, a rope, a rope, or the like via an auxiliary rope 16 tied to the opening peripheral edge portion 15a.

  When driving pressure is supplied into the piping network 6, the bag 15 receives driving pressure from the right end opening 6m, passes through the position indicated by the two-dot chain line in FIG. 4A, and is indicated by the solid line in the direction of arrow E. The bag body 15 is allowed to pass through the entire length of the pipe network 6 and then taken out from the left end opening 6 n of the pipe network 6. In this process, the bag body 15 spreads the coating material 14 and presses it against the inner wall 6a. Therefore, as shown in FIG. 4B, the coating material layer 17 is formed substantially evenly on the inner wall 6a.

  Before the coating layer 17 is dried, the resin tube 13 having an opening at both ends shown in FIG. 5A is inserted into the piping network 6 together with the long pressurizing balloon 19 {see FIG. 5B}. The pressurizing balloon 19 is inserted into the resin tube 13 and introduces the compressed gas from the valve adjustment knob 21 through the pressure gauge 22. The outer diameter of the resin tube 13 is set to be approximately equal to the inner diameter of the paint layer 17.

  The resin tube 13 has openings 13n and 13m at both left and right ends, and the length W thereof is the same as the length L of the piping network 6. The length of the pressurizing balloon 19 is set to a length M slightly larger than the length L of the piping network 6 for the convenience of construction.

  By introducing the compressed gas, the pressurizing balloon 19 is inflated to expand the resin tube 13 into a tensioned state, and presses against the paint layer 17 so as to be integrally adhered thereto. Thereafter, when the compressed gas is extracted and the pressurized balloon 19 is deflated and pulled out from the pipe network 6, as shown in FIG. 5C, the liner layer 7 having the resin tube 13 as the inner surface layer is formed on the inner wall 6a. The

In Example 2, since the resin tube 13 is pressed and adhered to the inner peripheral surface of the paint layer 17 by the expansion of the pressurizing balloon 19 during the construction of the liner layer 7, the resin tube 13 has the shape of the paint layer 17. The function to hold is demonstrated.
For this reason, immediately after the liner layer 7 is provided on the inner peripheral surface of the pipe network 6, the liquid paint does not flow down along the inner peripheral surface, and the lower surface portion of the liner layer 7 does not increase in thickness. The liner layer 7 having a substantially uniform thickness can be formed. In addition, since the resin tube 13 is provided, the same effects as those of the first embodiment can be obtained.

  FIG. 6 shows an example in which a hot water supply circulation means 30 having a hot water supply pump 31 is provided in the second embodiment. The hot water supply pump 31 has a discharge port 31 a connected to a nozzle 33 via a hot water supply pipe 32. The return port 31 b of the hot water supply pump 31 is connected to the recovery cylinder 35 through the hot water pipe 34. The nozzle 33 is disposed in the left end opening 6 n of the piping network 6, and the collection cylinder 35 is disposed in the right end opening 6 m of the piping network 6.

  Since the resin tube 13 covers the coating layer 17 by sticking, the hot water supply pump 31 can be operated immediately after the construction of the liner layer 7. By the operation of the hot water supply pump 31, hot water circulates in the piping network 6 from the left end opening 6 n through the discharge port 31 a, the hot water pipe 32 and the nozzle 33. In this process, since the hot water is in direct contact with the resin tube 13, the liner layer 7 is heated and the paint layer 17 is dried and cured.

The hot water heated in contact with the resin tube 13 flows in the piping network 6 and returns to the hot water supply pump 31 from the right end opening 6m through the collection cylinder 35, the hot water pipe 34 and the return port 31b.
In this case, since the paint layer 17 can be dried with hot water immediately after the liner layer 7 is applied, it is possible to quickly move to the next work process in a short time, and the work efficiency is improved.
The hot water supply circulation means 30 is not limited to the second embodiment, and can be applied to the first embodiment in which the liner layer 7 is formed on the piping network 6 using the lining cloth pipe 10.

  Fig.7 (a) shows Example 3 of this invention. Example 3 is different from Example 2 in that the resin tube 13 is a spiral tube formed by rolling a belt-shaped resin plate 23 into a spiral shape. In the third embodiment, the drainage in the pipe network 6 can be quickly caused to flow along the spiral joint 23a of the spiral tube.

  FIG. 7B shows a fourth embodiment of the present invention. Example 4 is different from Example 2 in that a large number of minute protrusions 24 are formed on the outer surface of the resin tube 13. In Example 4, since the minute protrusions 24 of the resin tube 13 bite into the paint layer 17, this contributes to prevention of the resin tube 13 from being displaced with respect to the paint layer 17.

  FIG. 7C shows a fifth embodiment of the present invention. Example 5 differs from Example 2 in that a spiral ridge 25 is formed on the outer surface of the resin tube 13. In Example 5, since the protruding line 25 bites into the paint layer 17, the same effect as in Example 4 can be obtained.

(Modification)
(A) The application target of the present invention is not limited to the branch pipe 11, but may be formed by connecting a Y-shaped pipe, a cross pipe, and a plurality of pipes.
(B) As the piping network 6, not only a drain pipe but also an air conditioning duct or an exhaust duct (industrial duct or kitchen duct) may be applied.

  In the present invention, when the lining cloth pipe is constructed, the resin tube integrally adheres to the inner peripheral portion of the lining cloth pipe to form the inner surface layer of the liner layer. In addition, there is no possibility that water leakage is sealed by the resin tube and oozes out into the liner layer, and a water leakage preventing effect can be achieved. Since the work is performed efficiently in a short time by rational construction, demand from the plumbing company is aroused and can be widely applied to the chemical and mechanical industries through the distribution of related parts.

It is the schematic which shows the lining construction example of a drain pipe (Example 1). It is a general view of the piping network which gives a liner layer (Example 1). (A) is a longitudinal cross-sectional view which shows the aspect which gives a liner layer to the piping network which has a branch pipe, (b) is a longitudinal cross-sectional view which shows the connection of a piping network and a branch pipe (Example 1). (A) is a longitudinal cross-sectional view (Example 2) which shows the aspect which constructs a coating layer in a piping network, (b) is a longitudinal cross-sectional view which shows the aspect by which the coating layer was formed in the piping network (Example 2). . (A) is a perspective view (Example 2) of a resin-made tube, (b), (c) is a longitudinal cross-sectional view (Example 2) of the piping network which forms a resin-made tube using a pressurized balloon. It is a longitudinal cross-sectional view (Example 2) of the piping network which has a hot water supply circulation means and makes hot water contact a resin-made tube. (A), (b), (c) is a perspective view of a resin-made tube (Examples 3, 4, and 5). It is a longitudinal cross-sectional view of the piping network which shows the aspect which constructs the conventional lining cloth pipe.

Explanation of symbols

1 Vent pipe (pipe)
2 Sewage main (piping)
3 Miscellaneous drainage main (pipe)
4 indoor horizontal pipe (pipe)
6 Piping network (piping)
7 Liner layer 8 Strip body 8a One end of strip body 10 Lining cloth tube (paint layer)
DESCRIPTION OF SYMBOLS 13 Resin tube 14 Paint 17 Paint layer 19 Pressurized balloon 23 Resin plate 23a Joint 24 Microprotrusion 25 Projection line 30 Hot water supply circulation means

Claims (8)

While pressing the lining cloth pipe impregnated with liquid paint and reversible on the front and back with the feeding operation of the striated body, while bringing the inner peripheral surface of the lining cloth pipe reversed on the front and back into close contact with the inner wall of the pipe, In the piping lining device that forms the liner layer by moving in the depth direction of the piping in an inverted state,
It has a length according to the lining cloth tube, covers the outer periphery of the lining cloth tube, reverses with the lining cloth tube, and is integrally attached to the inner periphery of the inverted lining cloth tube A piping lining apparatus comprising a resin tube which is in close contact with the inner layer of the liner layer.   The piping lining apparatus according to claim 1, wherein the lining cloth pipe is made of a flexible woven fabric containing chemical fibers such as glass fiber and polyethylene.   A pipe comprising a resin tube that forms a liner layer by being pressed and adhered to the inner peripheral surface of the paint layer by expansion of a pressurized balloon inserted into a pipe having a paint layer formed on the inner peripheral surface by a paint. Lining equipment.   The pipe lining device according to any one of claims 1 and 3, wherein the resin tube is formed of urethane resin, nylon resin, or natural rubber.   The piping lining apparatus according to any one of claims 1, 3, and 4, wherein the resin tube is a spiral tube formed by winding a belt-shaped resin plate into a spiral shape.   The piping lining apparatus according to any one of claims 1, 3, 4, and 5, wherein a large number of minute protrusions are formed on an outer surface of the resin tube.   The pipe lining device according to any one of claims 1, 3, 4, and 5, wherein a spiral ridge is formed on an outer surface of the resin tube.   The piping lining according to any one of claims 1 and 3, further comprising a hot water supply circulation means for circulating and flowing hot water brought into direct contact with the resin tube into the piping after the liner layer is applied. apparatus.

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