Method for monitoring and repairing leakage of drainage pipeline

Abstract

The invention relates to the technical field of drainage pipeline leakage repairing devices, in particular to a drainage pipeline leakage monitoring and repairing method. Comprising the following steps: S1, initial sealing; s2, monitoring water leakage; and S3, water leakage repair. The monitoring and repairing device comprises a monitoring part and a repairing part, the repairing part comprises a repairing trolley body, a plurality of wheels are arranged on the outer side of the repairing trolley body, a limiting frame is arranged on the inner side of the repairing trolley body, and a guide hole is defined by the limiting frame and the repairing trolley body; a guide shovel plate is arranged on the lower side of the limiting frame and used for cleaning an initial sealing strip, the guide hole is used for allowing the initial sealing strip to pass through, and a connecting pin is arranged on the side, away from the repairing device body, of the limiting frame and used for fixing a new sealing strip. And meanwhile, old sealing materials can be rapidly stripped through the inclined plane guide holes, and new sealing strips are synchronously pulled, so that continuous operation of'shoveling old and laying new sealing strips' is realized.

Description

Technical Field

[0001] This invention relates to the technical field of drainage pipeline leakage repair devices, specifically a method for monitoring and repairing drainage pipeline leakage. Background Technology

[0002] As a crucial municipal infrastructure, urban drainage pipelines are prone to leakage due to aging of joints and foundation settlement during long-term operation. Traditional leakage detection relies on manual inspections or distributed sensors, which suffer from problems such as response delays and difficulties in location. Repairing leaks requires shutting down the pipeline and excavating to replace seals, which is time-consuming, labor-intensive, and disrupts residents' lives and environmental safety. Currently, there is a lack of a technological solution that can monitor leaks in real time and simultaneously complete repairs, resulting in low leakage handling efficiency and high maintenance costs. Summary of the Invention

[0003] To address the above problems, this invention provides a method for monitoring and repairing leakage in drainage pipelines.

[0004] The technical solution adopted by this invention to solve its technical problem is: a method for monitoring and repairing leakage in drainage pipelines, comprising the following steps: S1. Initial sealing: An initial sealing strip is laid on the outside of the joint between the two drainage pipes using a monitoring and repair device; S2. Leakage monitoring: The monitoring and repair device forms a monitoring chamber around the outside of the drainage pipeline. The monitoring module of the monitoring and repair device monitors the leakage inside the monitoring chamber. S3. Leakage Repair: When the monitoring module detects internal leakage in the monitoring chamber, the initial sealing strip is removed through the monitoring and repair device, and a new sealing strip is laid simultaneously.

[0005] As an optimization, the monitoring and repair device includes the following parts: The monitoring section is connected to the outside of the drainage pipeline and includes a right-angle sealing plate and a sealing baffle. When two drainage pipelines are connected, the right-angle sealing plate and the sealing baffle fit together and form a monitoring cavity around the outside of the drainage pipeline. Several monitoring modules are evenly arranged in the monitoring cavity. Repair section: includes a repair trolley body, with several wheels on the outer side of the repair trolley body and a limit frame on the inner side of the repair trolley body. The limit frame and the repair trolley body form a guide hole. A guide scraper is provided on the lower side of the limit frame. The guide scraper is used to clean the initial sealing strip. The guide hole is used to accommodate the passage of the initial sealing strip. A connecting pin is provided on the side of the limit frame away from the repair device body. The connecting pin is used to fix the new sealing strip.

[0006] As an optimization, the monitoring module includes several water immersion sensors.

[0007] As an optimization, the monitoring cavity is arc-shaped, with a central angle of not less than 270°. The monitoring cavity is laid in the lower middle part of the drainage pipeline, and the upper part of the monitoring cavity forms an open operating area.

[0008] As an optimization, a connecting screw hole is provided at the rear end of the repair trolley body, and a push plate is detachably connected to the connecting screw hole. The push plate is used to push the repair trolley body to move along the monitoring cavity.

[0009] As an optimization, the outer end of the guide shovel is a pointed tip, the width of the guide shovel is not less than the width of the initial sealing strip, the side of the guide shovel opposite to the main body of the repair trolley is a guide slope, the initial sealing strip is guided by the guide slope and then passes through the limiting frame, and the new sealing strip is laid synchronously on the outside of the limiting frame.

[0010] As an optimization, sealing caps are detachably connected to both ends of the monitoring cavity.

[0011] As an optimization, in step S3, when laying the new sealing strip, the main body of the repair trolley is pushed into the monitoring chamber by the push plate, the initial sealing strip is scooped up by the guide shovel plate, and the main body of the repair trolley is simultaneously pulled to lay the new sealing strip along the connection seam of the drainage pipeline. When the main body of the repair trolley moves out of the monitoring cavity, the staff can manually tighten and fix the two ends of the new sealing strip.

[0012] The beneficial effects of this plan are as follows: An arc-shaped monitoring cavity is quickly constructed using a right-angle sealing plate and a baffle. The cavity contains a built-in water immersion sensor to capture leaks in real time, enabling "immediate repair upon detection." This completely solves the problem of delayed response in traditional methods. The tip of the guide shovel automatically removes the failed sealing strip, while the old sealing material is quickly peeled off through the inclined guide hole, and a new sealing strip is simultaneously pulled in, achieving continuous "removing the old and laying the new." The entire repair process does not require stopping pipelines or excavating earthwork, effectively improving repair efficiency. The open operating area at the top of the monitoring chamber is designed to allow for manual intervention, and combined with the push plate to assist mechanical operations, it greatly improves adaptability to complex working conditions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the state in use of the present invention.

[0014] Figure 2 This is a schematic diagram of the monitoring cavity location structure of the present invention.

[0015] Figure 3 This is a magnified schematic diagram of the monitoring cavity of the present invention.

[0016] Figure 4 This is a schematic diagram of the axle side of the repair vehicle body according to the present invention.

[0017] Figure 5 This is a front view schematic diagram of the usage state of the present invention.

[0018] Figure 6 For the present invention Figure 5 A schematic diagram of the AA cross-section structure.

[0019] Figure 7 For the present invention Figure 6 A magnified structural diagram of part B.

[0020] Among them, 1. Right-angle sealing plate, 2. Sealing baffle, 3. Monitoring cavity, 4. Monitoring module, 5. Repair trolley body, 6. Wheel, 7. Limiting frame, 8. Guide hole, 9. Guide shovel plate, 10. Initial sealing strip, 11. Connecting pin, 12. New sealing strip, 13. Push plate, 14. Connecting screw hole, 15. Sealing cover. Detailed Implementation

[0021] like Figure 1 As shown, a method for monitoring and repairing leakage in drainage pipelines includes the following steps: S1. Initial sealing: An initial sealing strip 10 is laid on the outside of the joint between the two drainage pipes using a monitoring and repair device; S2. Leakage monitoring: The monitoring and repair device surrounds the drainage pipeline to form a monitoring chamber 3. The monitoring module 4 of the monitoring and repair device monitors the leakage inside the monitoring chamber 3. S3. Leakage Repair: When the monitoring module 4 detects internal leakage in the monitoring cavity 3, the initial sealing strip 10 is removed through the monitoring repair device, and a new sealing strip 12 is laid simultaneously.

[0022] The monitoring and repair device includes the following components: like Figures 1-7 As shown, the monitoring section is connected to the outside of the drainage pipeline and includes a right-angle sealing plate 1 and a sealing baffle 2. When the two drainage pipelines are connected, the right-angle sealing plate 1 and the sealing baffle 2 fit together and form a monitoring cavity 3 around the outside of the drainage pipeline. Several monitoring modules 4 are evenly arranged in the monitoring cavity 3. Repair section: includes a repair trolley body 5, with several wheels 6 arranged on the outer side of the repair trolley body 5, and a limiting frame 7 arranged on the inner side of the repair trolley body 5. The limiting frame 7 and the repair trolley body 5 enclose to form a guide hole 8. A guide scraper 9 is arranged on the lower side of the limiting frame 7. The guide scraper 9 is used to clean the initial sealing strip 10. The guide hole 8 is used to accommodate the initial sealing strip 10. A connecting pin 11 is arranged on the side of the limiting frame 7 away from the repair device body. The connecting pin 11 is used to fix the new sealing strip 12.

[0023] The arc-shaped monitoring chamber 3 adopts an arc design with a central angle of ≥270°, covering the lower part of the pipeline where leakage is likely to occur (accounting for more than 85% of leakage accidents). The monitoring chamber 3 is composed of a right-angle sealing plate 1 and a sealing baffle 2, with EPDM rubber sealing strips pre-installed at the joints to ensure airtight closure.

[0024] The right-angle sealing plate 1 is fixed to one end of the drainage pipe, and the sealing baffle 2 is fixed to the other end of the drainage pipe. When the two drainage pipes are spliced ​​together, the right-angle sealing plate 1 and the sealing plate are spliced ​​together.

[0025] The limiting frame 7 has an embedded ball bearing to reduce traction resistance, and the connecting pin 11 is equipped with a self-locking mechanism to fix the end of the new sealing strip 12.

[0026] The monitoring module 4 includes several water immersion sensors.

[0027] A set of high-sensitivity capacitive water immersion sensors is deployed every 0.5m along the three axes of the monitoring chamber, with a detection accuracy of ±0.1mm water level change. The sensor signals are transmitted to the wellhead data acquisition box via a waterproof bus, supporting 4G / LoRa dual-mode wireless transmission back to the monitoring platform.

[0028] A fiber optic temperature sensor can be added directly below the pipe interface to help locate slow seepage points through sudden temperature changes (sensitivity 0.1℃). The sensor's placement does not affect the movement of the repair trolley body 5.

[0029] like Figure 6 As shown, the monitoring cavity 3 is arc-shaped, the central angle of the monitoring cavity 3 is not less than 270°, the monitoring cavity 3 is laid in the middle and lower part of the drainage pipeline, and the upper part of the monitoring cavity 3 forms an open operating area.

[0030] like Figure 4 and Figure 6 As shown, the rear end of the repair trolley body 5 is provided with a connecting screw hole 14, and a push plate 13 is detachably connected to the connecting screw hole 14. The push plate 13 is used to push the repair trolley body 5 to move along the monitoring cavity 3.

[0031] like Figure 7 As shown, the outer end of the guide shovel 9 is a pointed tip, the width of the guide shovel 9 is not less than the width of the initial sealing strip 10, the side of the guide shovel 9 opposite to the main body 5 of the repair trolley is a guide slope, the initial sealing strip 10 is guided by the guide slope and passes through the limiting frame 7, and the new sealing strip 12 is laid synchronously on the outside of the limiting frame 7.

[0032] The guide shovel 9 has a carbide cutter head (hardness HRC60) at the front end, with an inclination angle of 25° to ensure that the shearing force is ≤50N when cutting into the sealing strip. The width of the guide shovel 9 can be set to be adjustable, so that the width of the guide shovel 9 can be dynamically adjusted according to the width of the monitoring cavity 3 and the sealing strip, and automatic opening and closing can be achieved by hydraulic push rod.

[0033] like Figure 1 As shown, the monitoring cavity 3 is detachably connected to sealing caps 15 at both ends.

[0034] like Figure 6 and Figure 7 As shown, in step S3, when laying the new sealing strip 12, the repair trolley body 5 is pushed into the monitoring chamber 3 by the push plate 13, and the initial sealing strip 10 is scooped up by the guide shovel plate 9. The repair trolley body 5 simultaneously pulls the new sealing strip 12 to lay along the connection seam of the drainage pipeline. When the main body 5 of the repair trolley moves out of the monitoring cavity 3, the staff can manually tighten both ends of the new sealing strip 12 and fix it.

[0035] In areas with saturated soil and water layers, the monitoring chamber 3 is covered with a nano-bentonite waterproof blanket to block external water seepage interference. The main body 5 of the repair vehicle can be equipped with a miniature water pump to drain the accumulated water inside the monitoring chamber 3 in real time.

[0036] The above-described specific embodiments are merely specific examples of the present invention. The patent protection scope of the present invention includes, but is not limited to, the product form and style of the above-described specific embodiments. Any method for monitoring and repairing leakage in drainage pipelines that conforms to the claims of the present invention, and any appropriate changes or modifications made to it by those skilled in the art, shall fall within the patent protection scope of the present invention.

Claims

1. A method for monitoring and repairing leakage in drainage pipelines, characterized in that: Includes the following steps: S1. Initial sealing: An initial sealing strip (10) is laid on the outside of the joint between the two drainage pipes by monitoring the repair device; S2. Leakage monitoring: The monitoring and repair device surrounds the drainage pipeline to form a monitoring cavity (3), and the monitoring module (4) of the monitoring and repair device monitors the leakage inside the monitoring cavity (3); S3. Leakage Repair: When the monitoring module (4) detects internal leakage in the monitoring cavity (3), the initial sealing strip (10) is removed through the monitoring repair device and a new sealing strip (12) is laid simultaneously.

2. The method for monitoring and repairing leakage in drainage pipelines according to claim 1, characterized in that: The monitoring and repair device includes the following components: The monitoring section is connected to the outside of the drainage pipeline and includes a right-angle sealing plate (1) and a sealing baffle (2). When the two drainage pipelines are connected, the right-angle sealing plate (1) and the sealing baffle (2) fit together and form a monitoring cavity (3) around the outside of the drainage pipeline. Several monitoring modules (4) are evenly arranged in the monitoring cavity (3). Repair section: includes a repair trolley body (5), with several wheels (6) arranged on the outer side of the repair trolley body (5), a limiting frame (7) arranged on the inner side of the repair trolley body (5), the limiting frame (7) and the repair trolley body (5) forming a guide hole (8), a guide shovel plate (9) arranged on the lower side of the limiting frame (7), the guide shovel plate (9) is used to clean the initial sealing strip (10), the guide hole (8) is used to accommodate the initial sealing strip (10) to pass through, a connecting pin (11) is arranged on the side of the limiting frame (7) away from the repair device body, the connecting pin (11) is used to fix the new sealing strip (12).

3. The method for monitoring and repairing leakage in drainage pipelines according to claim 1, characterized in that: The monitoring module (4) includes several water immersion sensors.

4. The method for monitoring and repairing leakage in drainage pipelines according to claim 1, characterized in that: The monitoring cavity (3) is arc-shaped, and the central angle of the monitoring cavity (3) is not less than 270°. The monitoring cavity (3) is laid in the middle and lower part of the drainage pipeline, and the upper part of the monitoring cavity (3) forms an open operating area.

5. The method for monitoring and repairing leakage in drainage pipelines according to claim 2, characterized in that: The rear end of the repair trolley body (5) is provided with a connecting screw hole (14), and a push plate (13) is detachably connected to the connecting screw hole (14). The push plate (13) is used to push the repair trolley body (5) to move along the monitoring cavity (3).

6. The method for monitoring and repairing leakage in drainage pipelines according to claim 2, characterized in that: The outer end of the guide shovel (9) is a pointed tip. The width of the guide shovel (9) is not less than the width of the initial sealing strip (10). The side of the guide shovel (9) opposite to the main body (5) of the repair trolley is a guide slope. The initial sealing strip (10) is guided by the guide slope and then passes through the limiting frame (7). The new sealing strip (12) is laid synchronously on the outside of the limiting frame (7).

7. The method for monitoring and repairing leakage in drainage pipelines according to claim 1, characterized in that: The monitoring cavity (3) is detachably connected to sealing caps (15) at both ends.

8. The method for monitoring and repairing leakage in drainage pipelines according to claim 5, characterized in that: In step S3, when laying the new sealing strip (12), the main body of the repair trolley (5) is pushed into the monitoring chamber (3) by the push plate (13), and the initial sealing strip (10) is scooped up by the guide shovel plate (9). The main body of the repair trolley (5) simultaneously pulls the new sealing strip (12) to lay it along the connection seam of the drainage pipeline. When the repair trolley body (5) moves out of the monitoring cavity (3), the staff can manually tighten both ends of the new sealing strip (12) and fix it.

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