JP6680964B2 - Pipe repair device and pipe repair method - Google Patents

Description

  The present invention is a pipe for inserting a tubular lining material impregnated with a thermosetting resin into a pipe by inverting and heating the lining material to cure the thermosetting resin and repair the inner surface of the pipe. The present invention relates to a road repair device and a pipe repair method.

  As a sewage pipe buried underground for flowing sewage, a main pipe and a pipe line such as a mounting pipe (branch pipe) branched from the main pipe are installed. The attachment pipe constitutes a pipe line that connects the main pipe and a pit formed by digging about 1 m from the surface of the earth. Similar to the main pipe, the mounting pipe has a different structure from that of the main pipe, although if it is damaged due to aging, it will cause a road collapse accident. Therefore, in addition to the repair device and repair method for repairing the main pipe, various repair devices and repair methods specialized for the mounting pipe have been put into practical use. Further, there has also been proposed a pipeline repair device and pipeline repair method in which a lining material is reversely inserted into the mounting pipe from the side of the grid, and the mounting pipe is repaired without cutting (for example, see Patent Document 1).

  The pipeline repair device described in Patent Document 1 includes a reversing machine that reversely inserts a tubular lining material impregnated with a thermosetting resin into a mounting tube, a blower that supplies compressed air into the reversing machine, and a compressed air. And heating means for heating. The reversing machine has a cylindrical body which is erected on a container and has a height of, for example, about 2 m to 3 m, and the lining material is accommodated in the cylindrical body while extending in the vertical direction. The lining material housed in the tubular body is initially closed at one end portion located at the upper end portion of the tubular body, and the blower outlet of the air supply hose connected to the blower is connected to this one end portion. On the other hand, the other end portion of the lining material, which is located inside the basin, is attached to the reversing port connected to the attachment pipe in an open state.

  In the pipeline repair method using this pipeline repair device, first, compressed air is supplied from the blower, and the compressed air is blown into the reversing device from the outlet of the air supply hose. Here, the heating means is not operated, and unheated compressed air is blown out from the air outlet. With this compressed air, the lining material is inserted into the mounting tube while being inverted from the inversion port. In addition, the air supply hose is also drawn into the mounting pipe a while after the lining material is inserted into the mounting pipe. When the entire lining material is eventually inverted, the closed one end portion of the lining material projects into the main pipe, and the insertion of the lining material into the mounting pipe is completed. When the insertion of the lining material is completed, the air outlet of the air supply hose is in a state of being pulled in near the main pipe in the mounting pipe. Further, the lining material is pressed against the inner surface of the mounting pipe by the compressed air blown out from the air outlet.

  Further, by operating the heating means while continuing to supply the compressed air from the blower, high temperature compressed air is blown out from the air outlet of the air supply hose. By this high-temperature compressed air, the lining material is heated while being pressed against the inner surface of the mounting pipe, and the hardening of the thermosetting resin of the lining material proceeds. By continuing the supply of high temperature compressed air for a predetermined time, the thermosetting resin of the lining material is completely cured, and the lining material is cut and the cut pipe opening is finished as necessary, so that the inner surface of the mounting pipe The repair of is completed.

JP, 06-71753, A

  However, in the pipeline repair device and pipeline repair method described in Patent Document 1, when the reverse insertion of the lining material into the mounting pipe is started, the reverse device, until the curing of the thermosetting resin of the lining material is completed, All equipment such as blower and heating equipment for pipeline repair equipment will be used. For this reason, until the curing of the thermosetting resin is completed, all of the equipment of the conduit repair device cannot be used for repairing other mounting pipes. In addition, in the pipeline repair device described in Patent Document 1, it is attempted to repair a plurality of mounting tubes at the same time by providing a plurality of air supply hoses, but until the curing of the thermosetting resin is completed, There is no change in that equipment such as pipeline repair equipment cannot be reused for repairing other mounting pipes. Also, depending on the spacing between multiple mounting pipes, it may not be possible to place an air supply hose on each of these mounting pipes, making it difficult to repair multiple mounting pipes at the same time. There is room for

  In view of the above circumstances, the present invention provides a pipeline repairing device and a pipeline repairing method in which a part of the apparatus is reused for repairing other pipelines to facilitate parallel repair of a plurality of pipelines. The purpose is to do.

In the pipeline repair device of the present invention for solving the above-mentioned object, a tubular lining material impregnated with a thermosetting resin is reversely inserted into the pipeline, and the lining material is heated by heated air to cure the thermosetting resin. In a conduit repairing device that cures a flexible resin to repair the inner surface of the conduit,
A storage unit for storing the lining material,
A main body portion having a reversing port connected to the storage portion and attached with one end of the lining material stored in the storage portion opened.
Compressed air is supplied to the storage part, and the lining material, one end of which is attached to the reversing port, is sent out while being inverted by air pressure from the reversing port toward the inside of the conduit, and the lining material is fed to the inner surface of the conduit. Compressed air supply means for making pressure contact with
Existing in the lining material inverted in the conduit, and comprising heated air supply means for supplying the heated air into the lining material,
The storage unit state, and are the heated air supply means capable separated together with the compressed air supply means from the body portion in a state positioned in the liner bag,
The heated air supply means has a discharge part for discharging the heated air,
The discharge section is characterized der Rukoto capable moving said tube said liner bag which is inverted in the passage in the extending direction of the pipe line.

  Here, the storage section has a winding member that winds up the lining material, and the lining material is stored in the storage section by being wound around the winding member and fed out from the winding member. However, it may be one that is inverted and inserted into the conduit. Further, the storage unit may store the lining material in a zigzag shape.

  According to the pipeline repair device of the present invention, the storage section is separable from the main body section together with the compressed air supply section in a state where the heated air supply section is located inside the lining material. It is possible to separate the storage unit together with the compressed air supply means while continuing to supply the heated air from the heated air supply means into the lining material. Thereby, the storage section and the compressed air supply means can be used for repairing other pipelines while the heated air is supplied to cure the thermosetting resin in the predetermined pipelines. That is, a plurality of the main body portion and the heated air supply means are prepared, and the storage portion and the compressed air supply means can be reused among the plurality of main body portions and the heated air supply means, and a plurality of pipes can be used. It is easy to repair the roads in parallel.

  By adopting a mode in which the discharge unit is movable in the extending direction of the pipeline, by adjusting the position of the discharge unit at which high-temperature heated air is discharged, the temperature distribution in the pipeline can be made uniform. As a whole of the lining material, it is possible to shorten the time for completing the curing of the thermosetting resin. Further, it is also possible to move the discharge part to a portion where the temperature tends to be relatively low in the extending direction of the conduit to accelerate hardening of the portion.

Further, in the pipeline repair device of the present invention, the heated air supply means is a diffusion member for diffusing the heated air discharged from the discharge part,
The diffusing member may include a supporting member that supports the diffusing member in a state of being separated from the lining material that is in pressure contact with the inner surface of the conduit.

  Here, the support member may support the discharge member at the center of the conduit.

  If the aspect having the support member, it becomes easier to uniformly diffuse the heated air from the diffusion member into the conduit, and even when the diffusion member is moved in the extending direction in the conduit, for example, By providing a roller on the support member, it is possible to prevent the inner surface of the conduit from being damaged. It is also possible to adopt a mode in which the lining material is pressed against the inner surface of the pipe by a roller provided at a position in contact with the inner surface of the pipe.

The pipe repair method of the present invention which solves the above-mentioned object, the tubular lining material impregnated with a thermosetting resin is reversely inserted into the pipe, and the thermosetting is performed by heating the lining material with heated air. In a pipeline repairing method of curing a flexible resin to repair the inner surface of the pipeline,
A storing step of storing the lining material in a storing section,
An attaching step of attaching to the reversing port of the main body portion connected to the storage portion with one end of the lining material stored in the storage portion opened.
Compressed air is supplied from the compressed air supply means to the storage portion, and the lining material having one end attached to the reversing port is fed while being reversed by the air pressure from the reversing port toward the inside of the pipe, and the lining material is supplied. A reverse pressure welding step in which the inner surface of the pipe is pressure-welded,
An inserting step of inserting heated air supply means from the inversion port into the lining material which is inverted into the pipe line,
A separation step of separating the storage section from the main body section together with the compressed air supply section in a state where the heated air supply section is still inserted in the lining material;
The heated air possess a heated air supply step of supplying to said liner bag from the heated air supply means,
The heated air supply step, while the discharge portion is moved in the extending direction of the conduit from said discharge output unit, wherein the step der Rukoto for discharging the heated air.

  Here, the inversion press contacting step and the inserting step may be performed in parallel.

  According to the pipeline repairing method of the present invention, since there is a separation step of separating the storage unit together with the compressed air supply unit from the main body unit while the heated air supply unit is still inserted in the lining material, The storage unit can be separated together with the compressed air supply unit while the supply of the heated air into the lining material from the heated air supply unit is continued by the heated air supply step. Accordingly, while the heating air supply step is being performed on a predetermined pipeline, the reversing pressure welding step for another pipeline can be performed using the storage section and the compressed air supply means. , It becomes easy to repair a plurality of pipelines in parallel.

Further, by doing so, for example, the discharge portion can be moved to a portion where the temperature of the heated air supplied in the extending direction of the conduit tends to be relatively low, and the curing of the portion can be promoted.

Further, in the conduit repairing method of the present invention, in the reverse pressure welding step, the lining material in which a base hose impregnated with a thermosetting resin is inserted into a calibration hose is used. Is the process of flipping so that it is located at
After the thermosetting resin is cured by performing the heated air supply step, a collecting step of connecting the storage section to the main body section and collecting the calibration hose by a winding member provided in the storage section. May have.

  By winding with the winding member, the calibration hose can be peeled off from the base hose while being pulled, and the calibration hose can be collected in a clean state without being entangled.

  According to the pipeline repair device and pipeline repair method of the present invention, a pipeline repair is devised to facilitate parallel repair of a plurality of pipelines by reusing a part of the device for repairing other pipelines. An apparatus and a pipeline repair method can be provided.

It is a figure for demonstrating the pipeline repair apparatus corresponded to one Embodiment of this invention. It is a flow chart which shows a flow of a pipeline repairing method corresponding to one embodiment of the present invention. It is a figure for demonstrating the apparatus installation process of the pipeline repair method in FIG. It is a figure for demonstrating a lining material formation process, a storage process, and an attachment process in FIG. It is a figure for demonstrating the state which reversed the lining material from the reversal opening to the length which can be inserted in a mounting pipe. It is a figure for demonstrating the first half of the inversion press contact process in FIG. FIG. 5 is a diagram for explaining the latter half of the reverse pressure welding step and the insertion step in FIG. 2. It is a figure for demonstrating the separation process and heating air supply process in FIG. It is a figure explaining the state which moved the discharge part and the diffusion member to the extension direction of an attachment pipe. It is an AA sectional view of FIG. It is a figure for demonstrating the collection process in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. INDUSTRIAL APPLICABILITY The pipeline repair device and pipeline repair method of the present invention can be used for repairing the inner surface of a pipeline such as a sewer pipe, and in particular, can be suitably used for repairing the inner surface of a mounting pipe branched from a main pipe. . Therefore, in the following description, a mode used for repairing the inner surface of the mounting pipe will be described as an example.

  FIG. 1 is a diagram for explaining a pipeline repair device 1 corresponding to an embodiment of the present invention.

  As shown in FIG. 1, a pipeline repair device 1 includes a storage unit 2 in which a lining material described later is stored, a main body unit 3 connected to the storage unit 2, a compressed air supply unit 4 connected to the storage unit 2, and heated air. The supply means 5 and the temperature measuring means 6 are provided. The heated air supply means 5 and the temperature measurement means 6 are partially inserted in the main body 3.

  The storage unit 2 includes a winding member 21 that winds the lining material, and a duct 22 that is connected to the compressed air supply means 4 and receives compressed air. The storage unit 2 of the present embodiment is configured to store the lining material wound on the winding member 21 by rotating the handle 211 of the winding member 21. The storage state of the lining material in the storage section 2 is not limited to this, and for example, a storage section that stores the lining material in a zigzag shape may be used.

  The main body 3 has a reversing port 31 that is open on the left side in the figure, an insertion port 32, and a lid 33 that closes the insertion port 32. From the insertion opening 32, part of the heated air supply means 5 and part of the temperature measurement means 6 are inserted into the main body 3. The reversing port 31 is an opening that is attached in a state where one end of the lining material stored in the storage section 2 is folded back to the outside, and a ring-shaped end fixture 311 is fixed to the folded portion of the lining material. To be done. A heat-resistant tube 52, a guide rope 53, and a thermocouple 61 of the temperature measuring means 6, which will be described later in detail, penetrate through the lid 33. Accordingly, even when the heated air supply means 5 and the temperature measurement means 6 are inserted from the insertion opening 32, the insertion opening 32 can be closed in an airtight state by closing the lid 33.

  The compressed air supply unit 4 has a first compressor 41 and a tube 42, and the tube 42 connects the duct 22 of the storage section 2 and the first compressor 41. The compressed air produced by the first compressor 41 flows through the tube 42 and is supplied from the duct 22 into the storage section 2.

  The heated air supply means 5 includes a diffusion member 51, a heat resistant tube 52, a guide rope 53, a pulley member 54, a heating member 55, and a second compressor 56. The diffusion member 51 attached to the tip of the heat-resistant tube 52 is inserted into the main body 3 through the insertion port 32. The compressed air produced by the second compressor 56 is heated by the heating member 55, the heated compressed air flows through the heat resistant tube 52, is discharged from the tip of the heat resistant tube 52, and is then diffused by the diffusion member 51. Hereinafter, the heated compressed air may be referred to as heated air. The temperature measuring means 6 includes a thermocouple 61 and a temperature recorder 62, and the thermocouple 61 is inserted into the main body 3 through the insertion port 32.

  In FIG. 1, a portion surrounded by a circle is enlarged and shown. In the enlarged view, the orientation is corrected so that the heat-resistant tube 52 extends horizontally. The diffusing member 51 is made of a heat-resistant material such as silicon, has a bowl-like shape, and has a hemispherical inner peripheral surface 51a as shown in the enlarged view. The diffusion member 51 is attached to the tip portion of the heat resistant tube 52 by a mounting member 521, and the heat resistant tube 52 is inserted into the diffusion member 51 from the right side in the figure. Further, the discharge portion 52a formed at the tip of the heat-resistant tube 52 and the inner peripheral surface 51a of the diffusion member 51 are spaced apart from each other, and the propeller is provided at a portion of the inner peripheral surface 51a facing the discharge portion 52a. 511 is provided. The thermocouple 61 is inserted into the diffusing member 51 with its tip end attached to the heat-resistant tube 52, and the temperature measuring contact 611 projects toward the inner peripheral surface 51 a of the diffusing member 51.

  The heated air flowing from the second compressor 56 through the heating member 55 through the heat-resistant tube 52 is discharged from the discharge portion 52a of the heat-resistant tube 52 as shown by the arrow in the enlarged view, and then the inner peripheral surface of the diffusion member 51. It diffuses upon 51a and flows in a direction opposite to the direction discharged from the discharge part 52a. Further, the rotation of the propeller 511 provided on the inner peripheral surface 51a also promotes the diffusion of the heated air. The temperature of the heated air discharged from the discharge part 52a is measured by the thermocouple 61. Here, the temperature of the heated air is measured because even if the compressed air is heated to a predetermined temperature by the heating member 55, it is actually blown out from the discharge portion 52a depending on environmental conditions such as the ambient temperature to the discharge portion 52a. This is because the temperature of the heated air varies, and the output of the heating member 55 and the like are controlled based on the temperature of the heated air measured by the thermocouple 61.

  The guide rope 53 is also inserted into the main body 3 from the insertion opening 32, and the guide rope 53 is wound around the pulley member 54. The guide rope 53 has a connecting ring 531 and the connecting ring 531 is connected to a connecting portion 512 provided on the outer peripheral portion of the diffusion member 51. Accordingly, when the guide rope 53 is moved with respect to the pulley member 54, the position of the diffusion member 51 with respect to the pulley member 54 moves. The movement of the diffusing member 51 will be described later.

  The storage part 2 of the pipeline repair device 1 configured as described above is separated from the main body part 3 in a state where the heated air supply means 5 and the temperature measurement means 6 are inserted from the insertion opening 32 together with the compressed air supply means 4. can do. As a result, as will be described in detail later, the storage section 2 and the compressed air supply means 4 can be used for repairing other mounting pipes. In FIG. 1, the closing plate 23 is shown in a portion surrounded by an ellipse. The closing plate 23 is for fixing the storage part 2 to the main body part 3 instead of the separated storage part 2 after separating the storage part 2 from the main body part 3, and the side of the main body part 3 to which the storage part 2 is connected. Is to be closed in a closed state. The closing plate 23 is provided with a mounting portion 231 to which a reversing belt 83 (see FIG. 4 and the like) described later is tied.

  Next, a pipeline repair method using the pipeline repair device 1 will be described. In the following description of the pipeline repair method, the description of the configuration of the pipeline repair device 1 will be appropriately supplemented.

  FIG. 2 is a flowchart showing the flow of a pipeline repairing method corresponding to an embodiment of the present invention. In the pipeline repairing method according to the present embodiment, first, a device installation step of installing the pipeline repair device 1 shown in FIG. 1 around the pipeline to be repaired is performed (step S1).

  FIG. 3 is a diagram for explaining a device installation step of the pipeline repair method in FIG. 2. In the present embodiment, as shown in FIG. 3, the mounting pipe 71 that connects the main pipe 72 and the basin 73 is targeted for repair, and the reversal port 31 is provided in the vicinity of the basin 73 to which the mounting pipe 71 targeted for repair is connected. The pipeline repair device 1 is installed so as to be positioned. The length of the mounting pipe 71 in the extending direction, that is, the length from the grid side opening 71a located on the grid 73 side to the main pipe side opening 71b located on the main pipe 72 side is, for example, about 5 m to 10 m. It is what constitutes. Before performing the device installation process, a high-pressure washing car is used to remove deposits and the like in the mounting pipe 71, and a TV camera or the like is used to detect the condition inside the mounting pipe 71, the mounting pipe 71 and the main pipe. It is desirable to check the connection state with 72.

  Then, the lining material formation process shown in FIG. 2 is implemented (step S2). Here, a base hose and a calibration hose prepared in advance are used. For the base hose, a non-woven fabric processed into a cylindrical shape is coated with an impermeable film, a special knit woven fabric is drawn into an impermeable tube, or a non-woven fabric with glass fibers is formed into a cylindrical shape. It is possible to use a material that has been processed and drawn into an impermeable tube. The calibration hose is made of polyester fiber woven cloth coated with soft vinyl chloride, has a role of pressing the base hose from the inside toward the mounting pipe during construction, and is collected after construction. The base hose and the calibration hose are cut into a predetermined length in consideration of the length of the mounting pipe 71, the depth and size of the container 73 shown in FIG. Prepare a calibration hose that is slightly longer than the base hose. The prepared base hose is impregnated with a thermosetting resin by using a pressure reducer or a roller. The thermosetting resin to be impregnated is not particularly limited, but an unsaturated polyester resin or an epoxy resin can be exemplified, and a curing accelerator or a curing agent is added as necessary.

  FIG. 4 is a diagram for explaining the lining material forming step, the storing step, and the attaching step in FIG. As shown in FIGS. 4A and 4B, the base hose 81 impregnated with the thermosetting resin is drawn into the calibration hose 82 to form the lining material 8 (step S2).

  Next, as shown in FIG. 4C, one end of the calibration hose 82 is tied and closed, and one end of the reversing belt 83 is tied to the tied one end 82a. The other end of the reversing belt 83 is attached to the winding member 21 of the storage part 2, and the reversing belt 83 is wound around the winding member 21 by rotating the handle 211, and eventually the lining material 8 is also reversed. Then, it is wound into the winding member 21 as shown in FIG. As a result, the lining material 8 is stored in the storage unit 2 (step S3). In addition, in FIG. 4C and FIG. 4D, the diffusion member 51 and the like inserted in the main body are omitted for the sake of simplicity.

  Further, as shown in FIG. 4D, the end of the lining material 8 on the side opposite to the side wound by the winding member 21 is fixed to the end while being folded back from the reversing port 31. It is attached to the main body 3 by the tool 311 (step S4). FIG. 4E is an enlarged sectional view showing a portion where the lining material 8 is attached to the reversing port 31 of the main body 3. As shown in FIG. 4E, when the lining material 8 is attached to the reversing port 31 of the main body part 3, the base hose 81 is located inside the calibration hose 82 in the main body part 3 and At the portion folded back to the outside, the base hose 81 is located outside the calibration hose 82.

  FIG. 5 is a diagram for explaining a state in which the lining material 8 is inverted from the inversion port 31 to a length that can be inserted into the attachment pipe 71.

  When the first compressor 41 of the compressed air supply means 4 is actuated and compressed air is supplied from the duct 22 into the storage section 2 as indicated by the arc-shaped arrow in FIG. 5, FIG. 4D and FIG. As shown in FIG. 5, the lining material 8 attached to the reversing port 31 is fed out while reversing from the reversing port 31 by the pressure of the compressed air supplied. Here, the supply of the compressed air is stopped when the length of the lining material 8 sent out while being inverted from the reversing port 31 reaches such a degree that it can be slightly inserted into the mounting pipe 71 from the grid side opening 71a. As a result, the inversion of the lining material 8 from the inversion port 31 is also stopped. In this embodiment, as shown in FIG. 5, the reversal is stopped in a state where the one end portion 82a of the lining material 8 is located in the vicinity of the diffusion member 51 in the main body portion 3.

  FIG. 6 is a diagram for explaining the first half of the reverse pressure welding step in FIG. FIG. 7 is a diagram for explaining the latter half of the reverse pressure welding process and the insertion process in FIG. 2.

  As described above, after the supply of compressed air is temporarily stopped, the lid 33 of the main body 3 is opened and the insertion opening 32 is opened as shown in FIG. Next, the hand is inserted through the insertion opening 32, and the pulley member 54 is tied to the one end portion 82a of the lining material 8. As a result, the heated air supply means 5 is connected to the one end 82a of the lining material 8. Then, by closing the lid 33, the insertion opening 32 is kept airtight as described above. Further, once the lid 33 is opened, the inside of the lining material 8 is decompressed, and the lining material 8 is in a slightly shrunk state. As shown in FIG. 6, this slightly deflated lining material 8 is inserted into the mounting pipe 71 through the grid-side opening 71a.

  Next, when the first compressor 41 of the compressed air supply means 4 is operated and compressed air is again supplied into the storage unit 2, the lining material 8 inserted into the mounting pipe 71 is inverted by the pressure of the compressed air supplied. As it extends toward the main pipe 72, the tip portion projects into the main pipe 72 as shown in FIG. Here, the winding member 21 applies tension to the lining material 8 that is being inserted into the mounting pipe 71, and when the lining material 8 does not move smoothly, the winding operation is performed by the winding member 21. It is preferable. As a result, the lining material 8 can be smoothly inserted into the mounting pipe 71 by reversing.

  Further, as shown in an enlarged view of a portion surrounded by a circle in FIG. 7, the lining material 8 which is inverted and inserted into the mounting pipe 71 has a base hose 81 overlaid on the inner surface of the mounting pipe 71. The calibration hose 82 is positioned inside the hose 81. The pressure of the supplied compressed air is applied to the calibration hose 82, and the base hose 81 is pressed toward the mounting pipe 71 by the calibration hose 82 as shown by the arrow in the enlarged view. By these, the reverse pressure contact process shown in FIG. 2 is implemented (step S5).

  In the present embodiment, the inserting step (step S6) of inserting the diffusion member 51 and the like of the heated air supply means 5 into the mounting tube 71 is performed in parallel with the reverse pressure contact step. When the lining material 8 is reversed and inserted into the mounting pipe 71 as described above, the heated air supply means 5 connected to the one end portion 82a of the lining material 8 also passes through the reversing port 31 and is inserted into the mounting pipe 71. Then, as shown in FIG. 7, the diffusion member 51 is located in the vicinity of the main pipe side opening 71b. The diffusing member 51 moves in the mounting pipe 71 while being supported at a substantially central position in the mounting pipe 71 by a supporting member 57 (see FIG. 10) described later in detail.

  FIG. 8 is a diagram for explaining the separation step and the heated air supply step in FIG.

  After performing the reverse pressure contact step and the inserting step, the reverse belt 83 is removed from the winding member 21 of the storage section 2 and the storage section 2 and the compressed air supply means 4 are separated from the main body section 3 as shown in FIG. (Step S7). The closing plate 23 is fixed in an airtight state to the portion of the main body 3 to which the storage part 2 is connected, and the reversing belt 83 is tied to the attachment portion 231 of the closing plate 23. Here, the storage part 2 and the compressed air supply means 4 can be separated while the diffusion member 51 and the like of the heated air supply means 5 are still inserted in the mounting pipe 71. Therefore, while performing the heating air supply step described later, the separated storage part 2 and compressed air supply means 4 are separated from the storage step (step S3) to the insertion step (step S6) in the method for repairing the pipeline of another mounting pipe. ) Can be reused for the process up to, and it becomes easy to repair a plurality of mounting pipes in parallel. Here, the inside of the lining material 8 is depressurized until the storage part 2 is separated from the main body part 3 and the blocking plate 23 is attached. Therefore, a member that sandwiches a portion of the lining material 8 close to the reversal port 31 and suppresses depressurization in the lining material 8 may be attached before separating the storage portion 2 from the main body portion 3.

  Next, the second compressor 56 and the heating member 55 of the heated air supply means 5 are operated to cause the heated air to flow into the heat resistant tube 52 and be supplied into the lining material 8 (step S8). The heated air flowing through the heat-resistant tube 52 is discharged from the discharge portion 52a and then hits the inner peripheral surface 51a of the diffusion member 51 to be diffused, as shown in an enlarged view in the circle of FIG. Further, it is also diffused by the rotating propeller 511, and is blown out from the diffusing member 51 as shown in FIG. The heated air discharged from the discharge part 52a is measured by the thermocouple 61, and the output of the heating member 55 is adjusted based on the measured temperature. Thereby, the temperature of the heated air discharged from the discharge part 52a is controlled to a predetermined temperature.

  When heated air is blown out from the diffusion member 51 and the lining material 8 is filled with heated air, the base hose 81 is pressed toward the mounting pipe 71 by the calibration hose 82, as shown in an enlarged view of the circled portion. At the same time, the base hose 81 is heated. As a result, the thermosetting resin impregnated in the base hose 81 is cured, and the curing of the thermosetting resin is completed by continuing the supply of heated air for a predetermined time. In the present embodiment, the heated air supplied into the base hose 8 is open to the atmosphere from a check valve or the like (not shown) provided on the lid 33. The discharged heated air may be circulated and reused as the heated air supplied into the base hose 8.

  In addition, in the present embodiment, a mode is adopted in which the discharge part 52a (see FIG. 1) and the diffusion member 51 can be moved in the extending direction of the attachment pipe 71.

  FIG. 9 is a diagram illustrating a state in which the discharge portion 52a and the diffusion member 51 are moved in the extending direction of the attachment pipe 71. 10 is a cross-sectional view taken along the line AA of FIG.

  In FIG. 9, one of the guide ropes 53 wound around the pulley member 54 is pulled to move the discharge portion 52a and the diffusion member 51 to the vicinity of the grid-side opening 71a. As a result, for a region away from the diffusing member 51 where the temperature of the heated air tends to be relatively low, the discharge part 52a and the diffusing member 51 are moved close to that region, and the thermosetting resin Curing can also be accelerated. In addition, in the present embodiment, as shown in FIG. 10, three support members 57 that support the diffusion member 51 in a state of being separated from the lining material 8 that is pressed against the inner surface of the mounting pipe 71 are provided. Specifically, the support members 57 extending in the radial direction from the diffusion member 51 are provided at intervals of 120 degrees, so that the diffusion member 51 is supported in a state of being located substantially at the center of the mounting pipe 71. A roller 57a is provided at the tip of each of the three support members 57, and the roller 57a is in contact with the calibration hose 82 of the lining material 8 that is reversely pressure-welded to the mounting tube 71. When the roller 57a rotates, the discharge portion 52a and the diffusion member 51 move in the extending direction of the mounting pipe 71, so that the lining material 8 is not damaged and the lining material 8 is pressed toward the mounting pipe 71. Actions can also occur.

  11: is a figure for demonstrating the collection process in FIG.

  When the hardening of the thermosetting resin with which the base hose 81 is impregnated is completed, the supply of heated air is stopped. After the temperature inside the mounting pipe 71 has dropped to about room temperature, as shown in FIG. 11, the closing plate 23 is removed from the main body part 3, and instead the storage part 2 and the compressed air supply means 4 are connected and the reversing belt 83 is attached. Attach to the winding member 21. Next, the reversing belt 83 is wound up by the winding member 21 while supplying air into the lining material 8 from the compressed air supply means 4 at a very weak pressure this time, whereby the one end portion 82a of the calibration hose 82 is fixed. pull. Since the base hose 81 has the thermosetting resin cured while being pressed against the mounting pipe 71, the calibration hose 82 is peeled off from the base hose 81, and as shown by enlarging the circled portion, The inner peripheral surface of the mounting pipe 71 is repaired by the base hose 81.

  As shown in FIG. 11, when the one end portion 82a moves to the vicinity of the insertion opening 32, a hand is inserted from the insertion opening 32, the pulley member 54 is removed from the one end portion 82a, and then further reversed by the winding member 21. The belt 83 is wound up. When the calibration hose 82 is completely taken out from the mounting pipe 71, the base hose 81 is cut at the grid side opening 71a, and the calibration hose 82 and the cut base hose 81 are collected (step S9). In the present embodiment, since the calibration hose 82 is peeled off while supplying a weak pressure of air into the lining material 8, an appropriate pressure is applied to the calibration hose 82, and the calibration hose 82 becomes jerky during recovery. It is possible to avoid such a situation. It is of course possible to recover the calibration hose 82 without supplying air into the lining material 8. In this case, in the recovery step, the storage part 2 and the storage part 2 of the compressed air supply means 4 are collected. It suffices if only the body is connected to the main body 3. Further, since it is not necessary to close the main body portion 3 in the collecting step, a winding means dedicated to collecting the calibration hose 82 may be used separately from the storage portion 2.

  Finally, if necessary, the container side opening 71a is finished with a pipe mouth finish material, and if the hardened base hose 81 is protruding from the main pipe side opening 71b, it is cut to complete the pipeline repair method. To do.

  According to the pipeline repair device 1 and the pipeline repair method described above, parallel repair of a plurality of pipelines can be facilitated by using a part of the device for repairing other pipelines.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope described in the claims. For example, in the above-described pipe line repairing method, the insertion step (step S6) is performed while the reverse pressure welding step (step S5) is performed, but the reverse pressure welding step (step S5) is performed to attach the lining material 8 to the pipe. After completely inverting and pressure-contacting inside 71, the inserting step (step S6) of pulling the guide rope 53 and inserting the heated air supply means 5 to the vicinity of the main pipe side opening 71b may be carried out. Further, in the above-described pipe line repairing method, the separation step (step S7) is performed before the heating air supply step (step S8), but the heating air supply is performed before the separation step (step S7) is performed. A part of the process (step S8) may be performed, and after the separation process (step S7), the remaining heated air supply process (step S8) may be performed.
In the sludge scraping device described so far, the pipeline repair device is configured such that the tubular lining material impregnated with the thermosetting resin is reversely inserted into the pipeline, and the lining material is heated by the heated air. In a pipeline repair device for curing a thermosetting resin to repair the inner surface of the pipeline,
A storage unit for storing the lining material,
A main body portion having a reversing port connected to the storage portion and attached with one end of the lining material stored in the storage portion opened.
Compressed air is supplied to the storage part, and the lining material, one end of which is attached to the reversing port, is sent out while being inverted by air pressure from the reversing port toward the inside of the conduit, and the lining material is fed to the inner surface of the conduit. Compressed air supply means for making pressure contact with
Existing in the lining material inverted in the conduit, and comprising heated air supply means for supplying the heated air into the lining material,
The storage unit may be separable from the main body unit together with the compressed air supply unit in a state where the heated air supply unit is located inside the lining material.
Further, the pipe repair method described so far is such that the tubular lining material impregnated with the thermosetting resin is reversely inserted into the pipe, and the lining material is heated by the hot air to thereby heat the thermosetting resin. In the pipe repair method of curing the resin to repair the inner surface of the pipe,
A storing step of storing the lining material in a storing section,
An attaching step of attaching to the reversing port of the main body portion connected to the storage portion with one end of the lining material stored in the storage portion opened.
Compressed air is supplied from the compressed air supply means to the storage portion, and the lining material whose one end is attached to the reversing port is fed while being reversed by the air pressure from the reversing port toward the inside of the pipe, and the lining material is also fed. A reverse pressure welding step in which the inner surface of the pipe is pressure-welded,
An inserting step of inserting heated air supply means from the inversion port into the lining material which is inverted into the pipe line,
A separation step of separating the storage section from the main body section together with the compressed air supply section in a state where the heated air supply section is still inserted in the lining material;
A heating air supply step of supplying the heating air into the lining material from the heating air supply means may be included.

DESCRIPTION OF SYMBOLS 1 Pipeline repair device 2 Storage part 21 Winding member 23 Closing plate 3 Main body part 31 Inversion port 33 Lid 4 Compressed air supply means 5 Heating air supply means 51 Diffusion member 52a Discharge part 57 Supporting member 6 Temperature measuring means 71 Mounting pipe 71a Mouth side opening 71b Main tube side opening 72 Main tube 73 Grid 8 Lining material 81 Base hose 82 Calibration hose 83 Inversion belt

Claims (4)

A tubular lining material impregnated with a thermosetting resin is reversely inserted into the pipeline, and the lining material is heated by hot air to cure the thermosetting resin and repair the inner surface of the pipeline. In the pipeline repair device,
A storage unit for storing the lining material,
A main body portion having a reversing port connected to the storage portion and attached with one end of the lining material stored in the storage portion opened.
Compressed air is supplied to the storage part, and the lining material, one end of which is attached to the reversing port, is sent out while being inverted by air pressure from the reversing port toward the inside of the conduit, and the lining material is fed to the inner surface of the conduit. Compressed air supply means for making pressure contact with
Existing in the lining material inverted in the conduit, and comprising heated air supply means for supplying the heated air into the lining material,
The storage unit state, and are the heated air supply means capable separated together with the compressed air supply means from the body portion in a state positioned in the liner bag,
The heated air supply means has a discharge part for discharging the heated air,
The discharge section, the conduit repair apparatus according to claim der Rukoto capable moving said tube said liner bag which is inverted in the passage in the extending direction of the pipe line.   The heated air supply means, a diffusion member for diffusing the heated air discharged from the discharge part,
  The pipeline repair device according to claim 1, further comprising a support member that supports the diffusion member in a state of being separated from the lining material that is pressed against the inner surface of the pipeline.   A tubular lining material impregnated with a thermosetting resin is reversely inserted into the pipeline, and the lining material is heated by hot air to cure the thermosetting resin and repair the inner surface of the pipeline. In the pipeline repair method,
  A storing step of storing the lining material in a storing section,
  An attaching step of attaching to the reversing port of the main body portion connected to the storage portion with one end of the lining material stored in the storage portion opened.
  Compressed air is supplied from the compressed air supply means to the storage portion, and the lining material having one end attached to the reversing port is fed while being reversed by the air pressure from the reversing port toward the inside of the pipe, and the lining material is supplied. A reverse pressure welding step in which the inner surface of the pipe is pressure-welded,
  An inserting step of inserting heated air supply means from the inversion port into the lining material which is inverted into the pipe line,
  A separation step of separating the storage section from the main body section together with the compressed air supply section in a state where the heated air supply section is still inserted in the lining material;
  A heating air supply step of supplying the heating air into the lining material from the heating air supply means,
  The pipeline repair method, wherein the heated air supply step is a step of discharging the heated air from the discharge section while moving the discharge section in the extending direction of the pipeline.   The reversal press contacting step is a step of reversing the lining material in which the base hose impregnated with a thermosetting resin is inserted into the calibration hose so that the calibration hose is located inside the base hose.
  After the thermosetting resin is cured by performing the heated air supply step, a collecting step of connecting the storage section to the main body section and collecting the calibration hose by a winding member provided in the storage section. The pipeline repairing method according to claim 3, further comprising: