An apparatus and method for repairing pipes with inner lining material

Abstract

This invention provides a self-draining adhesive box and a device and method for repairing pipes with inner lining materials, relating to the technical field of pipe repair equipment. It includes a self-draining adhesive box comprising an adhesive, an extrusion component, and a media channel for bonding inner lining pipes. It also includes a device for repairing pipes with inner lining materials, comprising the self-draining adhesive box and a detection and maintenance trolley including a probe, a compressed air nozzle, a steam rotary nozzle, and a cooling water rotary nozzle for detecting pipe damage and heating and cooling the inner lining pipe. Furthermore, it includes a method for repairing pipes using the device for repairing pipes with inner lining materials. This invention is applicable to localized pipe repair, enabling the bonding of the inner lining pipe to the inner wall of the pipe, followed by heating and cooling to solidify the inner lining pipe, thus improving the stability of the inner lining pipe connection and enhancing the repair effect.

Description

Technical Field

[0001] This invention relates to the field of pipe repair equipment technology, and more specifically, to an apparatus and method for repairing pipes using lined pipes. Background Technology

[0002] After long-term operation, pipelines inevitably suffer various damages due to corrosion, improper operation and management, etc., leading to leaks. If not repaired promptly, this can result in serious economic losses. Generally, when a pipeline can be partially repaired, replacing the entire pipeline is avoided to prevent the large workload, high cost, long construction period, and environmental impact associated with replacement. Currently, trenchless partial repair of pipeline damage using lining pipes is commonly employed. For example, Chinese patent CN113187982A discloses a heated trenchless partial pipeline repair device, including a main frame, expansion components, and support rollers. The expansion components and support rollers are mounted on the main frame, and the expansion components are connected to steam lines for hot and cold air circulation. However, due to the different connection methods between the lining pipe and the pipeline, and the poor heating and cooling effects of the lining pipe, the repair effectiveness using lining pipes needs further improvement. Summary of the Invention

[0003] The purpose of this invention is to provide an apparatus and method for repair using lined pipes, which solves the problem of poor repair results caused by improper placement and heating / cooling of the lined pipes during repair.

[0004] The embodiments of the present invention are achieved through the following technical solution: a device for repairing pipes with inner lining, comprising a sleeved pipe and an inner lining, and further comprising:

[0005] Inclined hole, the inclined hole is set at an angle on the inner wall of the pipe;

[0006] The self-draining adhesive box is placed in an inclined hole and has a connected medium channel, a connecting channel and a cavity, with adhesive placed inside the cavity.

[0007] The extrusion component moves the adhesive in the extrusion chamber so that the adhesive flows through the medium channel to the connecting channel. The adhesive in the connecting channel is used for bonding the self-draining adhesive box to the inner liner tube.

[0008] The extrusion components include: a ball-head push rod, a spring, a sealing ring, and a piston cap. The ball-head push rod is sleeved with the spring, and its end is bolted to the piston cap. The piston cap is sleeved with the sealing ring and is in contact with the adhesive to extrude the adhesive and bond it to the inner liner tube. The pre-flattened inner liner tube opens and tightly adheres to the inner wall of the pipe, causing the ball-head push rod to push upward, which in turn drives the piston cap to push upward.

[0009] Furthermore, it also includes a connecting sleeve, which has a cavity, an adhesive placed inside the cavity and connected to a top cover, and a medium channel connected to the cavity for connecting the adhesive to the inner liner tube for bonding.

[0010] Furthermore, several inclined holes are set at annular intervals on both sides of the location of the pipe to be repaired.

[0011] Furthermore, it also includes a detection and maintenance trolley, which includes a probe, a compressed air nozzle, a steam rotary nozzle, and a cooling water rotary nozzle, for detecting pipeline damage and heating and cooling the inner liner.

[0012] Furthermore, it also includes a first airbag and a second airbag, both of which are supplied with compressed air and are located at both ends inside the inner liner tube.

[0013] Furthermore, compressed air is introduced through the compressed air nozzle to ensure tight adhesion between the inner liner and the pipe, high-temperature steam is introduced through the steam rotary nozzle to heat the inner liner to a highly elastic state, and cooling water is introduced through the cooling water rotary nozzle to cool the inner liner.

[0014] Furthermore, it also includes a control console, which is connected to the inspection and maintenance trolley to control the trolley's position movement, rotation, and spraying of high-temperature steam and cooling water.

[0015] A method based on the above-mentioned device for repairing pipes with inner lining material, the method comprising:

[0016] Step S1: Use the control console to send the inspection and maintenance trolley into the pipeline to detect damage, obtain the location of the pipeline damage, and then drill several inclined holes at an annular interval on both sides of the damage.

[0017] Step S2: After applying adhesive to the outer surface of the self-draining adhesive box pre-filled with adhesive, press it into the inclined hole. Flatten the inner liner tube beforehand and put it into the pipe together with the first airbag and the second airbag. The first airbag and the second airbag are placed at both ends of the inner liner tube.

[0018] Step S3: Compressed air is introduced into the first and second airbags, causing the airbags to rise and adhere tightly to the inner wall of the inner liner tube. Compressed air is then injected into the inner liner tube through the compressed air nozzle, pressing the inner liner tube tightly against the inner wall of the pipe. This causes the ball head rod to drive the piston cover to rise, forcing the adhesive through the medium channel to the connection channel, thus bonding the inner liner tube to the self-draining adhesive box.

[0019] Step S4: Move the inspection and repair trolley and spray high-temperature steam along the radial direction of the pipeline to heat the inner liner to a high-elasticity state. After further shaping and stress relief, move the inspection and repair trolley again and spray cooling water along the radial direction of the pipeline to cool and solidify the inner liner, thus completing the pipeline repair.

[0020] The technical solution of the present invention has at least the following advantages and beneficial effects: by setting a self-draining adhesive box, when the inner liner tube is attached to the pipeline after compressed air is introduced, the upper ball head rod squeezes out adhesive for bonding, thereby fixing the position of the inner liner tube; at the same time, by setting up a testing and maintenance trolley, after the inner liner tube is heated to a high elastic state by rotating spraying high-temperature steam, rotating spraying cooling water is then performed to cool and solidify the inner liner tube, improving the stability of the connection between the inner liner tube and the pipeline, thereby improving the repair effect of the inner liner tube. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the device for repairing pipes using inner lining provided in Embodiment 2 of the present invention;

[0023] Figure 2 The apparatus for repairing pipes using inner lining material provided in Embodiment 2 of the present invention Figure 1 A magnified view of A;

[0024] Figure 3 The apparatus for repairing pipes using inner lining material provided in Embodiment 2 of the present invention Figure 2 AA-direction cross-section diagram;

[0025] Figure 4 This is a schematic diagram of the inspection and maintenance trolley of the device for repairing pipes with inner lining provided in Embodiment 2 of the present invention;

[0026] Icons: 1-First airbag, 2-Inner liner tube, 3-Pipe, 4-Self-leaking adhesive box, 5-Inspection and maintenance trolley, 6-Second airbag, 7-Compressed air, 8-High-temperature steam, 9-Cooling water, 10-Gap, 11-Inclined hole, 41-Connecting sleeve, 42-Ball head push rod, 43-Spring, 44-Adhesive, 45-Sealing ring, 46-Piston cover, 47-Top cover, 51-Probe head, 52-Compressed air nozzle, 53-Cooling water rotary nozzle, 54-Steam rotary nozzle, 55-Control console. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] Example 1

[0030] This embodiment provides a device for repairing pipes with inner linings, such as... Figure 1-2 As shown, the device includes a sleeved pipe 3 and an inner liner 2, as well as an inclined hole 11, which is inclinedly disposed on the inner wall of the pipe 3; a self-draining adhesive box 4, which is placed in the inclined hole 11 and has a communicating medium channel, a connecting channel and a cavity, in which adhesive 44 is placed; and a squeezing component, which moves and squeezes the adhesive 44 in the cavity so that the adhesive 44 flows through the medium channel to the connecting channel, and the adhesive 44 in the connecting channel is used to bond the self-draining adhesive box 44 to the inner liner 2.

[0031] Self-draining adhesive box 4, such as Figure 2 As shown, the extrusion component includes: a ball-head push rod 42, a spring 43, a sealing ring 45, and a piston cap 46. The ball-head push rod 42 is sleeved with the spring 43, and its end is bolted to the piston cap 46. The piston cap 46 is sleeved with the sealing ring 45 and contacts the adhesive 44 to extrude the adhesive 44 and then bond it to the inner liner tube 2. It also includes a connecting sleeve 41, which has a cavity in which the adhesive 44 is placed and connected to a top cover 47. The cavity is connected to a medium channel to connect the adhesive 44 and the inner liner tube 2. Adhesion; the connection channel is located at the bottom of the self-draining adhesive box 4 and is connected to the medium channel; the specific working principle is as follows: when the pre-flattened inner liner tube 2 opens and tightly adheres to the inner wall of the pipe 3, the ball head rod 42 pushes up, thereby driving the piston cover 46 to push up. The adhesive 44 in the cavity of the connecting sleeve 41 is squeezed by the piston cover 46 and flows out through the medium channel to the connection channel at the bottom of the self-draining adhesive box 4, and then contacts the inner liner tube 2, bonding the inner liner tube 2 to the self-draining adhesive box 4 together, thus fixing the inner liner tube 2.

[0032] Example 2

[0033] like Figure 1 and4 As shown, this embodiment includes the device for repairing pipes with inner lining material as described in Embodiment 1, and also includes a detection and repair trolley 5. The detection and repair trolley 5 includes a probe head 51, a compressed air nozzle 52, a steam rotary nozzle 54, and a cooling water rotary nozzle 53, used for detecting damage to the pipe 3 and heating and cooling the inner lining pipe 2; the detection and repair trolley 5 also includes a control console 55, such as... Figure 4 As shown, the control console 55 can be a computer control terminal or a PLC control terminal. The control console 55 is connected to the inspection and maintenance trolley 5 and is used to control the inspection and maintenance trolley 5 to move, rotate, spray high-temperature steam 8 and cooling water 9; thus improving the efficiency of repair using the inspection and maintenance trolley 5.

[0034] The compressed air nozzle 52 of the inspection and maintenance trolley 5 supplies compressed air 7 to ensure the inner liner 2 is tightly sealed to the pipe 3. The steam rotary nozzle 54 supplies high-temperature steam 8 to heat the inner liner 2 to a highly elastic state. The cooling water rotary nozzle 53 supplies cooling water 9 to cool the inner liner 2. It also includes a first airbag 1 and a second airbag 6, such as... Figure 1 As shown, both the first airbag 1 and the second airbag 6 are supplied with compressed air 7 and are located at both ends inside the inner liner tube 2. This seals both ends of the inner liner tube 2, allowing the inner liner tube 2 to be repaired by the inspection and maintenance trolley 5 after compressed air 7 is introduced into it. The inspection and maintenance trolley 5 can inspect the gaps 10 in the pipe 3 and perform opening, heating, and cooling treatments on the inner liner tube 2, improving the stability of the connection between the inner liner tube 2 and the pipe 3, as well as improving the cooling and solidification effect of the inner liner tube 2 itself, thereby enhancing the repair effect using the inner liner tube 2.

[0035] It is worth mentioning that by setting up a self-draining adhesive box 4, when compressed air 7 is introduced to make the inner liner tube 2 fit with the pipe 3, the upper ball head rod 42 squeezes out adhesive 44 to bond, thereby fixing the position of the inner liner tube 2. At the same time, by setting up the inspection and maintenance trolley 5, after the inner liner tube 2 is heated to a high elastic state by rotating spraying high-temperature steam 8, the inner liner tube 2 is then cooled and solidified by rotating spraying cooling water 9, which improves the stability of the connection between the inner liner tube 2 and the pipe 3, thereby improving the repair effect of the inner liner tube 2.

[0036] Example 3

[0037] This embodiment provides a method for repairing pipes using the device for repairing pipes with inner lining material as described in Embodiment 2. The method includes:

[0038] Step S1: Using the control console 55, the inspection and maintenance trolley 5 enters the pipeline 3 to detect damage, obtain the location of the damage in the pipeline 3, and then drill several inclined holes 11 at an annular interval on both sides of the damage location.

[0039] Step S2: After applying adhesive to the outer surface of the self-draining adhesive box 4 pre-filled with adhesive 44, press it into the inclined hole 11. After pre-flattening the inner liner tube 2, put it into the pipe 3 together with the first airbag 1 and the second airbag 6. The first airbag 1 and the second airbag 6 are placed at both ends of the inner liner tube 2.

[0040] Step S3: Compressed air 7 is introduced into the first airbag 1 and the second airbag 6, so that the airbags are pushed up and tightly attached to the inner wall of the pipe 3. Then, compressed air 7 is injected into the inner liner tube 2 through the compressed air nozzle 52, so that the inner liner tube 2 is tightly attached to the inner wall of the pipe 3, so that the ball head rod 42 drives the piston cover 46 to push up, and the adhesive 44 is pressed out through the medium channel to the connection channel, so that the inner liner tube 2 is bonded to the ball head rod 42 self-draining adhesive box 4.

[0041] Step S4: Move the inspection and repair trolley 5 and spray high-temperature steam 8 along the radial direction of the pipe 3 to heat the inner liner 2 to a high elastic state. After further shaping and stress relief, move the inspection and repair trolley 5 again and spray cooling water 9 along the radial direction of the pipe 3 to cool and solidify the inner liner 2, thus completing the repair of the pipe 3.

[0042] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for repairing pipes with inner lining, comprising a sleeved pipe (3) and an inner lining pipe (2), characterized in that, Also includes: Inclined hole (11), the inclined hole (11) is inclinedly disposed on the inner wall of the pipe (3); A self-draining adhesive box (4) is placed inside the inclined hole (11) and is provided with a communicating medium channel, a connecting channel and a cavity, wherein an adhesive (44) is placed inside the cavity. The extrusion component moves to extrude the adhesive (44) in the cavity, so that the adhesive (44) flows through the medium channel to the connection channel, and the adhesive (44) in the connection channel is used to bond the self-draining adhesive box (4) to the inner liner tube (2). The extrusion component includes: a ball-head push rod (42), a spring (43), a sealing ring (45), and a piston cover (46). The ball-head push rod (42) is sleeved with the spring (43), and its end is bolted to the piston cover (46). The piston cover (46) is sleeved with the sealing ring (45) and contacts the adhesive (44) to extrude the adhesive (44) and then bond it to the inner liner tube (2). The pre-flattened inner liner tube (2) opens and tightly adheres to the inner wall of the pipe (3), causing the ball-head push rod (42) to push upward, thereby driving the piston cover (46) to push upward. It also includes a testing and maintenance trolley (5).

2. The device for repairing pipes using an inner lining as described in claim 1, characterized in that, It also includes a connecting sleeve (41), which has a cavity, the adhesive (44) is placed in the cavity and connected to a top cover (47), and the cavity is connected to a medium channel for connecting the adhesive (44) and the inner liner tube (2) for bonding.

3. The device for repairing pipes using an inner lining as described in claim 1 or 2, characterized in that, Several inclined holes (11) are provided at annular intervals on both sides of the position to be repaired in the pipe (3).

4. The device for repairing pipes using an inner lining as described in claim 1, characterized in that, The inspection and maintenance trolley (5) includes a probe (51), a compressed air nozzle (52), a steam rotary nozzle (54), and a cooling water rotary nozzle (53) for detecting damage to the pipe (3) and heating and cooling the inner liner (2).

5. The device for repairing pipes using an inner lining as described in claim 4, characterized in that, It also includes a first airbag (1) and a second airbag (6), both of which are supplied with compressed air (7) and are located at both ends inside the inner liner tube (2).

6. The device for repairing pipes using an inner lining as described in claim 5, characterized in that, The compressed air nozzle (52) introduces compressed air (7) to ensure that the inner liner tube (2) is tightly attached to the pipe (3). The steam rotary nozzle (54) introduces high-temperature steam (8) to heat the inner liner tube (2) to a high-elasticity state. The cooling water rotary nozzle (53) introduces cooling water (9) to cool the inner liner tube (2).

7. The device for repairing pipes using an inner lining as described in claim 6, characterized in that, It also includes a control console (55), which is connected to the inspection and maintenance trolley (5) to control the inspection and maintenance trolley (5) to move its position, rotate and spray high-temperature steam (8) and cooling water (9).

8. A method for repairing a pipeline using the device for repairing pipelines with inner lining material as described in claim 7, characterized in that, The methods include: Step S1: The inspection and maintenance trolley (5) is brought into the pipeline (3) through the control console (55) to detect damage, obtain the location of the damage in the pipeline (3), and then several inclined holes (11) are drilled at an annular interval on both sides of the damage. Step S2: After applying adhesive to the outer surface of the self-draining adhesive box (4) pre-filled with the adhesive (44), press it into the inclined hole (11). After pre-flattening the inner liner tube (2), put it into the pipe (3) together with the first airbag (1) and the second airbag (6). The first airbag (1) and the second airbag (6) are placed at both ends of the inner liner tube (2). Step S3: Compressed air (7) is introduced into the first airbag (1) and the second airbag (6) so that the airbags are pushed up and pressed against the inner wall of the inner liner tube (2). Compressed air (7) is then injected into the inner liner tube (2) through the compressed air nozzle (52) so that the inner liner tube (2) is pressed against the inner wall of the pipe (3) so that the ball head rod (42) drives the piston cover (46) to push up and press the adhesive (44) through the medium channel to the connection channel so that the inner liner tube (2) is bonded to the self-draining adhesive box (4). Step S4: Move the inspection and repair trolley (5) and spray high-temperature steam (8) along the radial rotation of the pipe (3) to heat the inner liner (2) to a high elastic state. After further shaping and stress relief, move the inspection and repair trolley (5) again and spray cooling water (9) along the radial rotation of the pipe (3) to cool and solidify the inner liner (2), and the pipe (3) repair is completed.

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