JP2020023194A - Pipeline repair device - Google Patents

Abstract

To provide a pipeline repair device which is devised to facilitate parallel repair of a plurality of pipelines by reusing a part of the device for repairing other pipelines.SOLUTION: There is provided a pipeline repairing device 1 for repairing an inner surface of a mounting pipe 71, comprising: a storage unit 2 for storing a lining material 8; a main unit 3 connected to the storage unit 2; compressed air supply means 4 for sending out the lining material 8 while reversing it from a reversing port 31 by air pressure; and heating air supply means 5 for supplying heated air into the lining material 8, in which the storage unit 2 can be separated from the main unit 3 together with the compressed air supply means 4 in a state where the heating air supply means 5 is located in the lining material 8, and the heating air supply means 5 has a discharge unit 52a for discharging heated air, and a diffusion member 51 for diffusing the heated air discharged from the discharge unit 52a.SELECTED DRAWING: Figure 1

Description

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

  Pipes such as a main pipe and an attachment pipe (branch pipe) branched from the main pipe are installed as sewage pipes buried underground for flowing sewage. The mounting pipe forms a pipe connecting the main pipe and a pit formed by being dug about 1 m from the ground surface, for example. Similarly to the main pipe, if the mounting pipe is damaged due to aging, it may cause a road collapse accident, but has a different configuration from the main pipe. For this reason, apart from the repair device and the repair method for repairing the main pipe, various repair devices and repair methods specialized for the mounting pipe have also been put to practical use. In addition, a pipeline repair apparatus and a pipeline repair method for reversingly inserting a lining material into a fitting pipe from the side of a box and repairing the fitting pipe without digging have been proposed (for example, see Patent Document 1).

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

  In the pipeline repair method using the pipeline repair device, first, compressed air is supplied from a blower, and compressed air is blown into the reversing device from an outlet of an air supply hose. Here, the heating means is not operated, and the unheated compressed air is blown out from the outlet. With this compressed air, the lining material is inserted into the mounting pipe while being inverted from the inversion port. Also, shortly after the lining material starts being inserted into the mounting pipe, the air supply hose is also drawn into the mounting pipe. When the entire lining material is turned over, the closed one end of the lining material protrudes 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 outlet of the air supply hose is drawn into the vicinity of 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 from the outlet.

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

JP 06-71753 A

  However, in the pipeline repair device and the pipeline repair method described in Patent Document 1, when the reversal insertion of the lining material into the mounting pipe is started, the reversing device, All the equipment of the pipeline repair device, such as the blower and the heating device, will be used. For this reason, until the curing of the thermosetting resin is completed, all of the devices of the pipeline repair device cannot be used for repairing other mounting pipes. In addition, in the pipeline repair device described in Patent Document 1, an attempt is made to repair a plurality of attachment pipes simultaneously by providing a plurality of air supply hoses, but until the curing of the thermosetting resin is completed. There is no change in that the equipment and the like of the pipeline repair device cannot be reused for repairing other mounting pipes. In addition, depending on the spacing between the mounting pipes, air supply hoses cannot be placed 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, an object of the present invention is to provide a pipeline repair device that is devised to facilitate parallel repair of a plurality of pipelines by reusing a part of the device for repairing other pipelines. I do.

In order to solve the above-mentioned problem, the pipe repair apparatus of the present invention is characterized in that a tubular lining material impregnated with a thermosetting resin is invertedly inserted into a pipe, and the lining material is heated by heated air to perform the thermosetting. In a pipeline repair device for curing the conductive resin to repair the inner surface of the pipeline,
A storage unit for storing the lining material,
A main body having a reversing port connected to the storage section and attached with one end of the lining material stored in the storage section opened;
Compressed air is supplied to the storage section, and the lining material, one end of which is attached to the reversing port, is sent out from the reversing port toward the inside of the pipeline while being inverted by air pressure, and the lining material is placed on the inner surface of the pipeline. Compressed air supply means for pressing against
A heating air supply unit that is present in the lining material inverted in the pipeline and supplies the heating air into the lining material,
The storage section is separable from the main body section together with the compressed air supply means while the heated air supply means is located in the lining material,
The heating air supply means includes a discharge unit for discharging the heated air, and a diffusion member for diffusing the heated air discharged from the discharge unit.

  In this pipeline repair device, the diffusion member may have a bowl shape.

  Further, in this pipeline repair device, the discharge section may be disposed in the diffusion member.

  ADVANTAGE OF THE INVENTION According to the pipeline repair apparatus of this invention, the pipeline repair apparatus and the pipeline repair which were devised to facilitate parallel repair of a plurality of pipelines by reusing a part of the device for repair of other pipelines A method can be provided.

It is a figure for explaining a pipe line repair device equivalent to one embodiment of the present invention. It is a flowchart which shows the flow of a pipeline repair method. FIG. 3 is a diagram for explaining an apparatus installation process of the pipeline repair method in FIG. 2. FIG. 3 is a diagram for explaining a lining material forming step, a storing step, and an attaching step in FIG. 2. It is a figure for explaining the state where a lining material was turned upside down from a reversing opening to the length which can be inserted in a mounting pipe. FIG. 3 is a diagram for explaining the first half of a reverse pressure welding step in FIG. 2. FIG. 3 is a diagram for explaining the latter half of the reverse pressure welding step and the insertion step in FIG. 2. FIG. 3 is a diagram for explaining a separation step and a heated air supply step in FIG. 2. It is a figure explaining the state where the discharge part and the diffusion member were moved in the extension direction of the attachment pipe. It is AA sectional drawing of FIG. FIG. 3 is a diagram for explaining a collection step in FIG. 2.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. INDUSTRIAL APPLICABILITY The pipeline repair device of the present invention can be used for repairing the inner surface of a pipeline such as a sewer pipe, and can be particularly suitably used for repairing the inner surface of a mounting pipe branched from the 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 according 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, A supply unit 5 and a temperature measuring unit 6 are provided. The heating air supply means 5 and the temperature measurement means 6 are partially inserted into the main body 3.

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

  The main body 3 has an inversion port 31 opened to the left in the figure, an insertion port 32, and a lid 33 for closing the insertion port 32. A part of the heated air supply means 5 and a part of the temperature measurement means 6 are inserted into the main body 3 from the insertion port 32. The inversion opening 31 is an opening to which one end of the lining material stored in the storage unit 2 is attached in a state of being folded outward, and a ring-shaped end fixing tool 311 is fixed to the folded portion of the lining material. Is done. The lid 33 is penetrated by a heat-resistant tube 52 and a guide rope 53 of a heated air supply unit 5 and a thermocouple 61 of a temperature measurement unit 6 which will be described in detail later. Thus, even when the heated air supply unit 5 and the temperature measurement unit 6 are inserted from the insertion port 32, the insertion port 32 can be closed in an airtight state by closing the lid 33.

  The compressed air supply means 4 has a first compressor 41 and a tube 42, and the tube 42 connects the duct 22 of the storage unit 2 to the first compressor 41. The compressed air created by the first compressor 41 flows through the tube 42 and is supplied from the duct 22 into the storage unit 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 from the insertion port 32. The compressed air generated by the second compressor 56 is heated by the heating member 55, and the heated compressed air flows through the heat-resistant tube 52, is discharged from the tip of the heat-resistant tube 52, and is 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 from the insertion port 32.

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

  The heated air flowing through the heat-resistant tube 52 from the second compressor 56 via the heating member 55 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 The light is diffused on the surface 51a, and flows in a direction opposite to the direction of the discharge from the discharge portion 52a. The diffusion of the heated air is also promoted by the rotation of the propeller 511 provided on the inner peripheral surface 51a. The temperature of the heated air discharged from the discharge unit 52a is measured by the thermocouple 61. Here, the reason for measuring the temperature of the heated air is that even if the compressed air is heated to a predetermined temperature by the heating member 55, the compressed air is actually blown out from the discharge unit 52a depending on environmental conditions such as the ambient temperature up to the discharge unit 52a. Because the temperature of the heated air varies, the output of the heating member 55 is controlled based on the temperature of the heated air measured by the thermocouple 61.

  A guide rope 53 is also inserted into the main body 3 from the insertion opening 32, and the guide rope 53 is wound around a pulley member 54. The guide rope 53 has a connection ring 531, which is connected to a connection 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 is moved. The movement of the diffusion member 51 will be described later.

  The storage section 2 of the pipeline repair apparatus 1 configured as described above is separated from the main body section 3 in a state where the heating air supply section 5 and the temperature measurement section 6 are inserted through the insertion port 32 together with the compressed air supply section 4. can do. As a result, as described later in detail, the storage section 2 and the compressed air supply means 4 can be used for repairing another mounting pipe. In FIG. 1, the closing plate 23 is shown in a portion surrounded by an ellipse. The closing plate 23 separates the storage unit 2 from the main unit 3 and then fixes the storage unit 2 to the main unit 3 in place of the separated storage unit 2. The side of the main unit 3 to which the storage unit 2 is connected is connected. Is closed in a closed state. The closing plate 23 is provided with a mounting portion 231 to which a reversing belt 83 described later (see FIG. 4 and the like) is connected.

  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 supplemented as appropriate.

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

  FIG. 3 is a diagram for explaining an apparatus installation step of the pipeline repair method in FIG. 2. In this embodiment, as shown in FIG. 3, the mounting pipe 71 connecting the main pipe 72 and the tub 73 is to be repaired, and the reversing port 31 is provided near the tub 73 to which the mounting pipe 71 to be repaired is connected. The pipeline repair device 1 is installed so as to be located. The mounting pipe 71 has a length in the extending direction, that is, a pipe line having a length from the square opening 71a located on the square 73 side to the main opening 71b located on the main pipe 72 side, for example, about 5 m to 10 m. It constitutes. Before performing the apparatus installation process, the attachments and the like in the attachment pipe 71 are removed using a high-pressure washing car, and the situation inside the attachment pipe 71 and the attachment pipe 71 and the main pipe are removed using a TV camera or the like. It is desirable to check the connection state and the like with 72.

  Subsequently, a lining material forming step shown in FIG. 2 is performed (Step S2). Here, a base hose and a calibration hose prepared in advance are used. The base hose is made of a cylindrical nonwoven fabric coated with an impermeable film on the outside, a special knitted woven fabric drawn into an impermeable tube, or a nonwoven fabric with glass fibers arranged in a cylindrical shape. Those processed and drawn into an impermeable tube can be used. The calibration hose is made of a polyester fiber woven fabric coated with soft vinyl chloride, and has a role of pressing the base hose from the inside toward the mounting pipe at the time of construction, and is collected after the construction. These base hose and calibration hose are cut into predetermined lengths in consideration of the length of the mounting pipe 71 and the depth and size of the box 73, as shown in FIG. Note that a calibration hose that is slightly longer than the base hose is prepared. The prepared base hose is impregnated with a thermosetting resin using a pressure reducer, a roller, or the like. The thermosetting resin to be impregnated is not particularly limited, but examples thereof include unsaturated polyester resins and epoxy resins, and a curing accelerator and a curing agent are added as necessary.

  FIG. 4 is a view for explaining a lining material forming step, a storing step, and an 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 unit 2. By rotating the handle 211, the reversing belt 83 is wound on the winding member 21. And is taken up by the take-up member 21 as shown in FIG. Thus, the lining material 8 is stored in the storage unit 2 (Step S3). In FIGS. 4C and 4D, the diffusion member 51 and the like inserted in the main body are omitted for simplification of the drawings.

  Further, as shown in FIG. 4D, the end of the lining material 8 opposite to the side wound by the winding member 21 is fixed to the end while being turned outward from the reversing port 31. It is attached to the main body 3 by the tool 311 (step S4). FIG. 4E is an enlarged cross-sectional view illustrating a portion where the lining material 8 is attached to the reversing port 31 of the main body 3. As shown in FIG. 4 (e), when the lining material 8 is attached to the reversing port 31 of the main body 3, the base hose 81 is located inside the calibration hose 82 in the main body 3, and In the part turned outward, 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 has been inverted from the inversion opening 31 to a length that can be inserted into the mounting pipe 71.

  When the first compressor 41 of the compressed air supply means 4 is operated and compressed air is supplied from the duct 22 into the storage section 2 as shown by an arc-shaped arrow in FIG. 5, the compressed air is supplied to FIG. 4D and FIG. As shown in FIG. 5, the lining material 8 attached to the reversing port 31 is sent out while reversing from the reversing port 31 by the pressure of the supplied compressed air, as shown in FIG. Here, the supply of the compressed air is stopped when the length of the lining material 8 that is sent out while being inverted from the inversion port 31 has reached such an extent that the lining material 8 can be slightly inserted into the attachment pipe 71 from the cell opening 71a. Thereby, the inversion of the lining material 8 from the inversion port 31 also stops. In the present embodiment, as shown in FIG. 5, the inversion is stopped in a state where one end 82 a of the lining material 8 is located near the diffusion member 51 in the main body 3.

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

  As described above, after temporarily stopping the supply of the compressed air, the lid 33 of the main body 3 is opened and the insertion port 32 is opened as shown in FIG. Next, a hand is inserted through the insertion opening 32, and the pulley member 54 is connected to one end 82 a of the lining material 8. Thereby, the heated air supply means 5 is connected to one end 82a of the lining material 8. Next, by closing the lid 33, the insertion port 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 becomes slightly deflated. As shown in FIG. 6, the lining material 8 in a slightly deflated state is inserted into the mounting pipe 71 through the opening 71a on the side of the cell.

  Next, when the first compressor 41 of the compressed air supply means 4 is operated to supply compressed air into the storage section 2 again, the lining material 8 inserted into the mounting pipe 71 is inverted by the pressure of the supplied compressed air. It extends toward the main pipe 72, and the tip portion projects into the main pipe 72 as shown in FIG. Here, while the tension is applied to the lining material 8 inserted into the mounting pipe 71 by the winding member 21, and when the lining material 8 does not advance smoothly, the operation of winding by the winding member 21 is performed. Is preferred. This makes it possible to smoothly insert the lining material 8 upside down into the mounting pipe 71.

  In FIG. 7, as shown in an enlarged view of a portion surrounded by a circle, the lining material 8 inverted and inserted into the mounting pipe 71 has a base hose 81 superimposed on the inner surface of the mounting pipe 71, The calibration hose 82 is located 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 indicated by the arrow in the enlarged view. Thus, the reverse pressure welding process shown in FIG. 2 is performed (step S5).

  In the present embodiment, an insertion step (Step S6) of inserting the diffusion member 51 or the like of the heated air supply unit 5 into the attachment pipe 71 is performed in parallel with the reverse pressure welding step. When the lining material 8 is reversely inserted into the mounting pipe 71 as described above, the heated air supply means 5 connected to one end 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 near the main pipe side opening 71b. The diffusion member 51 moves in the mounting pipe 71 while being supported at a substantially central position in the mounting pipe 71 by a support 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 welding step and the inserting step, the reverse belt 83 is detached 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 unit 2 is connected, and the reversing belt 83 is tied to the mounting portion 231 of the closing plate 23. Here, the storage section 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 inserted into the mounting pipe 71. For this reason, while performing the heated air supply step described later, the separated storage section 2 and the compressed air supply means 4 are separated from the storage step (step S3) to the insertion step (step S6) in the pipe repairing method for another mounting pipe. ), And it is easy to repair a plurality of mounting pipes in parallel. Here, the pressure in the lining material 8 is reduced until the storage section 2 is separated from the main body section 3 and the closing plate 23 is attached. For this reason, a member that sandwiches a portion of the lining material 8 close to the reversing port 31 and suppresses decompression in the lining material 8 may be attached before the storage unit 2 is separated from the main body 3.

  Next, the second compressor 56 and the heating member 55 of the heated air supply means 5 are operated to perform a heated air supply step of supplying heated air to the heat-resistant tube 52 and supplying the heated air into the lining material 8 (step S8). The heated air that has flowed through the heat-resistant tube 52 is discharged from the discharge portion 52a and then spreads on the inner peripheral surface 51a of the diffusion member 51, as shown in an enlarged circle in FIG. The light is also diffused by the rotating propeller 511 and blown out from the diffusion member 51 as shown in FIG. The heated air discharged from the discharge unit 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 unit 52a is controlled to a predetermined temperature.

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

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

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

  FIG. 9 shows a state in which 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 cell opening 71a. As a result, the discharge unit 52a or the diffusion member 51 is moved closer to the region where the temperature of the heated air tends to be relatively low and away from the diffusion member 51, and the thermosetting resin in the region is moved. Curing can also be accelerated. In the present embodiment, as shown in FIG. 10, three support members 57 are provided to support the diffusion member 51 in a state where the diffusion member 51 is separated from the lining material 8 pressed against the inner surface of the mounting tube 71. Specifically, by providing the support members 57 extending in the radial direction from the diffusion member 51 at intervals of 120 degrees, the diffusion member 51 is supported at a position substantially at the center in the mounting tube 71. Further, 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 which is pressed against the mounting pipe 71 in reverse. 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. An effect can also be produced.

  FIG. 11 is a diagram for explaining the collecting step in FIG.

  When the curing of the thermosetting resin impregnated in the base hose 81 is completed, the supply of the heated air is stopped. After the temperature in 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 3, and the storage section 2 and the compressed air supply means 4 are connected instead, and the reversing belt 83 is connected. It is attached to the winding member 21. Next, the reversing belt 83 is wound by the winding member 21 while supplying air from the compressed air supply means 4 into the lining material 8 at a very low pressure, and thereby the one end 82a of the calibration hose 82 is moved. pull. As the thermosetting resin is cured in a state where the base hose 81 is pressed against the mounting pipe 71, the calibration hose 82 is peeled off from the base hose 81, and the circled portion is enlarged as shown. 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 82 a has moved to the vicinity of the insertion port 32, a hand is inserted through the insertion port 32, the pulley member 54 is removed from the one end 82 a, and then the reversing member 21 turns the pulley member 54. The belt 83 is wound up. When the calibration hose 82 is completely removed from the mounting pipe 71, the base hose 81 is cut off at the opening 71a on the square side, 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 weak pressure air into the lining material 8, an appropriate pressure is applied to the calibration hose 82, and the calibration hose 82 becomes jerky at the time of collection. Can be avoided. 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 unit 2 and the storage unit 2 of the compressed air supply unit 4 are collected. Only the main body 3 needs to be connected. In addition, in the collecting step, it is not necessary to close the main body 3, so that a separate winding means for collecting the calibration hose 82 may be used separately from the storage section 2.

  Finally, if necessary, the square opening 71a is finished with a mouth opening material, and if the hardened base hose 81 protrudes from the main opening 71b, it is cut to complete the pipeline repair method. I 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 changes can be made within the scope described in the claims. For example, in the above-described pipe line repair method, the insertion step (Step S6) is performed while performing the reverse pressure welding step (Step S5). However, the reverse pressure welding step (Step S5) is performed to attach the lining material 8 to the mounting pipe. After being completely reverse-pressed into the inside 71, an insertion 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 performed. In the above-mentioned pipe repair method, the separation step (Step S7) is performed before the heating air supply step (Step S8) is performed. However, 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 performing the separation process (Step S7), the remaining heated air supply process (Step S8) may be performed.

In the sludge scraping apparatus described so far, the pipe line repair apparatus inserts a tubular lining material impregnated with a thermosetting resin upside down into a pipe, and heats the lining material with heated air. In a pipeline repair device for curing a thermosetting resin and repairing the inner surface of the pipeline,
A storage unit for storing the lining material,
A main body having a reversing port connected to the storage section and attached with one end of the lining material stored in the storage section opened;
Compressed air is supplied to the storage section, and the lining material, one end of which is attached to the reversing port, is sent out from the reversing port toward the inside of the pipeline while being inverted by air pressure, and the lining material is placed on the inner surface of the pipeline. Compressed air supply means for pressing against
A heating air supply unit that is present in the lining material inverted in the pipeline and supplies the heating air into the lining material,
The storage section may be characterized in that the storage section is separable from the main body section together with the compressed air supply section while the heated air supply section is kept in the lining material.

In addition, the pipe line repair method described so far involves inserting a tubular lining material impregnated with a thermosetting resin upside down into a pipe line and heating the lining material with heated air to form the thermosetting resin. In a pipe line repair method of curing a resin to repair an inner surface of the pipe line,
A storage step of storing the lining material in a storage unit,
Attachment step of attaching one end of the lining material stored in the storage part to an inverted opening of the main body part connected to the storage part in an open state,
Compressed air is supplied from the compressed air supply means to the storage section, and the lining material, one end of which is attached to the reversing port, is sent out while being reversed from the reversing port toward the inside of the pipe by air pressure, and the lining material is supplied. A reverse pressure welding step of pressing against the inner surface of the pipeline;
An insertion step of inserting heated air supply means from the inversion port into the lining material inverted into the pipeline,
A separation step of separating the storage unit from the main body together with the compressed air supply unit while the heating air supply unit is inserted into the lining material;
A heating air supply step of supplying the heating air into the lining material from the heating air supply means.

In addition, the pipe repair apparatus described above inserts a tubular lining material impregnated with a thermosetting resin upside down into a pipe, and heats the lining material with heated air to form the thermosetting resin. In a pipeline repair device for curing a resin to repair an inner surface of the pipeline,
A storage unit for storing the lining material,
A main body having a reversing port connected to the storage section and attached with one end of the lining material stored in the storage section opened;
Compressed air is supplied to the storage section, and the lining material, one end of which is attached to the reversing port, is sent out from the reversing port toward the inside of the pipeline while being inverted by air pressure, and the lining material is placed on the inner surface of the pipeline. Compressed air supply means for pressing against
A heating air supply unit that is present in the lining material inverted in the pipeline and supplies the heating air into the lining material,
The storage unit is detachable together with the compressed air supply unit from the main body in a state where the heated air supply unit is located in the lining material,
The heating air supply unit has a discharge unit that discharges the heating air,
The discharge unit is capable of moving in the direction in which the pipeline extends in the lining material inverted into the pipeline.

  Here, the storage unit has a winding member that winds up the lining material, and the lining material is stored in the storage unit by being wound up by the winding member, and is unwound from the winding member. Alternatively, it may be inserted in the pipe in an inverted manner. The storage section may store the lining material in a zigzag shape.

  According to this pipeline repair device, the storage section can be separated from the main body section together with the compressed air supply section while the heating air supply section is located in the lining material. The storage section can be separated together with the compressed air supply means while the supply of the heated air from the heated air supply means into the lining material is continued. Accordingly, the storage section and the compressed air supply means can be used for repairing another pipeline while supplying the heated air in the predetermined pipeline and curing the thermosetting resin. That is, a plurality of the main body and the heated air supply means are prepared, and the storage section and the compressed air supply means can be reused among the plurality of the main body and the heated air supply means. It is easy to repair roads in parallel.

  By adopting a mode in which the discharge unit is movable in the direction in which the pipeline extends, by adjusting the position of the discharge unit from which high-temperature heated air is discharged, and by making the temperature distribution in the pipeline uniform. When the lining material is viewed as a whole, the time required for completing the curing of the thermosetting resin can be shortened. Further, it is also possible to move the discharge portion to a portion where the temperature tends to be relatively low in the extending direction of the conduit, and to promote the hardening of the portion.

Further, in this pipeline repair device, the heating air supply unit includes a diffusion member that diffuses the heating air discharged from the discharge unit,
A support member for supporting the diffusion member in a state separated from the lining material pressed against the inner surface of the conduit may be provided.

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

  According to the aspect having the support member, it becomes easy to diffuse the heated air uniformly 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 the support member with a roller, it is possible to prevent the inner surface of the conduit from being damaged. The lining material may be pressed against the inner surface of the pipeline by a roller provided at a location in contact with the inner surface of the pipeline.

In addition, the pipe line repair method described so far involves inserting a tubular lining material impregnated with a thermosetting resin upside down into a pipe line and heating the lining material with heated air to form the thermosetting resin. In a pipe line repair method of curing a resin to repair an inner surface of the pipe line,
A storage step of storing the lining material in a storage unit,
Attachment step of attaching one end of the lining material stored in the storage part to an inverted opening of the main body part connected to the storage part in an open state,
Compressed air is supplied from the compressed air supply means to the storage section, and the lining material, one end of which is attached to the reversing port, is sent out while being reversed from the reversing port toward the inside of the pipe by air pressure, and the lining material is supplied. A reverse pressure welding step of pressing against the inner surface of the pipeline;
An insertion step of inserting heated air supply means from the inversion port into the lining material inverted into the pipeline,
A separation step of separating the storage unit from the main body together with the compressed air supply unit while the heating air supply unit is inserted into the lining material;
A heating air supply step of supplying the heating air from the heating air supply means into the lining material,
The heating air supply step is a step of discharging the heating air from the discharge unit while moving the discharge unit in an extending direction of the pipeline.

  Here, the reverse press-contacting step and the inserting step may be steps performed in parallel.

  According to this pipe line repair method, since the method has a separation step of separating the storage section from the main body together with the compressed air supply means while keeping the heated air supply means inserted into the lining material, The storage section can be separated together with the compressed air supply means while the supply of the heated air from the heated air supply means into the lining material is continued by the air supply step. Thereby, while the heating air supply step is being performed for the predetermined pipeline, the reverse pressure welding step of another pipeline can be performed using the storage unit and the compressed air supply unit. It is easy to repair a plurality of pipelines in parallel.

  By doing so, for example, it is possible to move the discharge section to a portion where the temperature of the heated air supplied in the extending direction of the pipeline tends to be relatively low, and to promote the curing of the portion.

Further, in this pipe line repair method, the reverse pressure welding step includes the step of positioning the lining material in which the base hose impregnated with the thermosetting resin is inserted into the calibration hose, such that the calibration hose is positioned inside the base hose. Is the process of inverting
After the thermosetting resin is cured by performing the heating air supply step, a collection 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 be provided.

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

DESCRIPTION OF SYMBOLS 1 Pipeline repair apparatus 2 Storage part 21 Winding member 23 Closure plate 3 Main part 31 Reversing port 33 Cover 4 Compressed air supply means 5 Heated air supply means 51 Diffusion member 52a Discharge part 57 Support member 6 Temperature measurement means 71 Mounting pipe 71a Masu side opening 71b Main pipe side opening 72 Main pipe 73 Masu 8 Lining material 81 Base hose 82 Calibration hose 83 Reversing belt

Claims (3)

A tubular lining material impregnated with a thermosetting resin is inserted upside down into the pipeline, and the lining material is heated with heated air to cure the thermosetting resin and repair the inner surface of the pipeline. In pipeline repair equipment,
A storage unit for storing the lining material,
A main body having a reversing port connected to the storage section and attached with one end of the lining material stored in the storage section opened;
Compressed air is supplied to the storage portion, and the lining material, one end of which is attached to the reversing port, is sent out while being reversed from the reversing port toward the inside of the conduit by air pressure, and the lining material is placed on the inner surface of the conduit. Compressed air supply means for pressing against
Heating air supply means that is present in the lining material inverted in the pipeline and supplies the heating air into the lining material,
The storage unit is detachable together with the compressed air supply unit from the main body in a state where the heated air supply unit is located in the lining material,
The pipeline repair device according to claim 1, wherein the heated air supply unit includes a discharge unit that discharges the heated air, and a diffusion member that diffuses the heated air discharged from the discharge unit.   2. The pipeline repair device according to claim 1, wherein the diffusion member has a bowl shape.   The pipeline repair device according to claim 2, wherein the discharge unit is disposed in the diffusion member.