Defect and disease detection device and method based on high-water-level operation pipeline

Abstract

The invention discloses a defect and disease detection device and method based on a high-water-level operation pipeline, and the device comprises a power supply (2) which is used for providing power supply, a grounding electrode (4) which is arranged in an external foundation of the high-water-level operation pipeline, and a probe electrode (5) which is arranged in the high-water-level operation pipeline. The current detector (3) is used for carrying out online monitoring on a current value between the grounding electrode (4) and the probe electrode (5), the cable group is arranged among the power supply (2), the current detector (3), the grounding electrode (4) and the probe electrode (5), through the power supply (2), current passes through the grounding electrode (4), the probe electrode (5) and the current detector (3), and through the cable group, the current value between the grounding electrode (4) and the probe electrode (5) is detected. The power supply (2), the grounding electrode (4), the probe electrode (5) and the current detector (3) are connected in series, the grounding electrode (4), the probe electrode (5) and the current detector (3) are used for monitoring the current value between the high-water-level operation pipeline and the ground on line, and impedance change caused by defect and disease detection of the high-water-level operation pipeline is used as a detection signal. The technical problem that the drainage pipeline is detected by using CCTV detection, sonar detection and QV detection is solved, so that the system is suitable for detecting defects and diseases of high-water-level operation pipelines.

Description

1. Technical Field

[0001] The present invention relates to a defect and disease detection device and method, in particular to a defect and disease detection device and method based on a high water level operating pipeline. 2. Background Technology

[0002] For existing drainage pipes with high surrounding groundwater levels, the water inside and outside the pipes reaches a dynamic balance. Rashly conducting endoscopic inspections during rainfall may cause road collapse. Therefore, it is necessary to check for leaks and take proactive measures to cut off the connection between the internal and external water flows. Therefore, a defect and disease detection device based on pipes running at high water levels is an important rainwater and sewage pipe construction device. Among the existing defect and disease detection devices based on pipes running at high water levels, there is no defect and disease detection device based on pipes running at high water levels. CCTV detection, sonar detection and QV detection are still used to detect drainage pipes. Since CCTV detection is often restricted by the water level of the pipe, the detection of sewage pipes with large diameters, fast flow rates and high water levels is limited. Sonar detection can only detect pipe sedimentation and cannot accurately judge structural defects that affect pipe operation. QV detection cannot be performed in pipes running at high water levels, and is therefore not suitable for detecting defects and diseases in pipes running at high water levels.

[0003] The present invention uses the impedance change caused by the defect and disease detection of the high-water-level running pipeline as the technical feature of the detection signal, and conducts effective exploration and research on the technical problem of using CCTV detection, sonar detection and QV detection to detect drainage pipelines at the technical level. 3. Summary of the Invention

[0004] The object of the present invention is a defect and disease detection device based on high water level running pipeline.

[0005] The object of the present invention is a defect and disease detection method based on a high water level running pipeline.

[0006] In order to overcome the above technical shortcomings, the purpose of the present invention is to provide a defect and disease detection device and method based on high water level operating pipelines, which is suitable for detecting defects and diseases in high water level operating pipelines.

[0007] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is: a defect and disease detection device based on a high-water-level operating pipeline, comprising a power supply for providing power supply, a grounding electrode arranged in the foundation outside the high-water-level operating pipeline, a probe electrode arranged in the high-water-level operating pipeline, a current detector for online monitoring of the current value between the grounding electrode and the probe electrode, and a cable group arranged between the power supply, the current detector, the grounding electrode and the probe electrode.

[0008] Due to the design of the power supply, grounding electrode, probe electrode, current detector and cable group, the power supply enables current to pass through the grounding electrode, probe electrode and current detector, and the cable group enables the power supply, grounding electrode, probe electrode and current detector to be connected in series. Through the grounding electrode, probe electrode and current detector, online monitoring of the current value between the high-water-level running pipeline and the earth is achieved, and the impedance change caused by the defect and disease detection of the high-water-level running pipeline is realized as a detection signal, which solves the technical problem of using CCTV detection, sonar detection and QV detection to detect drainage pipelines. Therefore, it is suitable for detecting defects and diseases of high-water-level running pipelines.

[0009] The present invention is designed to interconnect a power supply, a ground electrode, a probe electrode, a current detector and a cable group in a manner that impedance changes caused by defects and diseases of a high-water-level running pipeline are used as detection signals.

[0010] The present invention is designed to connect the ground electrode, the probe electrode and the current detector with the power supply and the cable group in a manner of online monitoring of the current value between the high water level running pipeline and the earth.

[0011] The present invention provides that the cable group is configured to include a first cable, a second cable and a third cable.

[0012] The technical effects of the above four technical solutions are: realizing the use of current signal changes as the judgment standard for defects and diseases of high-water-level operating pipelines, thereby improving the detection effect of defects and diseases of high-water-level operating pipelines.

[0013] The present invention is designed to further include a first accessory device, and the first accessory device is arranged on the power supply, the grounding electrode and the current detector, and the first accessory device is arranged as an external carrier vehicle.

[0014] The present invention is designed to further include a second accessory device, and the second accessory device is arranged on the probe electrode, and the second accessory device is arranged as a built-in sports car.

[0015] The present invention is designed to further include a third accessory device, and the third accessory device is arranged between the cable group and the first accessory device and the probe electrode. The third accessory device is configured to include a wire reel assembly and a wire storage assembly.

[0016] The technical effects of the above three technical solutions are: realizing the integrated installation of other components, and expanding the technical effects of the present invention.

[0017] The present invention is designed in such a way that a power supply, a current detector, a grounding electrode, a wire-paying reel assembly and a wire-storage assembly are respectively provided on an external carrying vehicle, a probe electrode is provided on an internal moving vehicle and a third cable is provided between the power supply and the current detector, a first cable is provided between the grounding electrode and the power supply and a second cable is provided between the current detector and the wire-paying reel assembly, the wire-storage assembly and the probe electrode.

[0018] The technical effect of the above technical solution is that the basic technical solution of the present invention is composed of an external carrying vehicle, a power supply, a current detector, a grounding electrode, a probe electrode, a built-in moving vehicle, a wire reel assembly, a wire storage assembly, a first cable, a second cable and a third cable, which solves the technical problem of the present invention.

[0019] The present invention is designed such that the power supply is configured to have a rated voltage of AC220V and the lower end portion of the power supply is configured to be contact-connected to an external carrier vehicle, one port of the power supply is configured to be connected to a first cable and another port of the power supply is configured to be connected to a third cable.

[0020] The technical effect of the above technical solution is that self-contained power supply is achieved.

[0021] The present invention is designed such that the current detector is configured as a current tester and the lower end portion of the current detector is configured to be contact-connected to an external carrier vehicle, one port of the current detector is configured to be connected to a second cable and another port of the current detector is configured to be connected to a third cable.

[0022] The technical effect of the above technical solution is that current value detection is realized.

[0023] The present invention is designed that the grounding electrode is configured to include an electrode part I, a rod part I, a spring part I and a lining part, and a receiving groove body is provided on the peripheral side of the vertical part of the rod part I, the receiving groove body is configured to be connected to the lining part and the electrode part I is configured to be embedded in the lining part, the inner side surface of the lining part is configured to be connected to the inner wall of the receiving groove body and the outer side surface of the lining part is configured to be connected to the inner side surface of the electrode part I, the vertical part of the rod part I is respectively configured to be through-connected to the spring part I and the external carrier vehicle and one of the end heads of the spring part I is configured to be in contact with the horizontal part of the rod part I, the other end head of the spring part I is configured to be in contact with the external carrier vehicle and the upper end of the outer side surface of the electrode part I is configured to be connected to the first cable.

[0024] The present invention is designed to set the electrode part I as a copper block and the rod part I as an L-shaped rod, the spring part I as a columnar spring and the lining as a PC insulating sheet, and the accommodating groove as a U-shaped groove.

[0025] The technical effects of the above two technical solutions are as follows: achieving full-embedding connection to the ground.

[0026] The present invention designs that the probe electrode is set to include an electrode part II, a rod part II, and a screw part I, and one port of the electrode part II is set to be sleeved and connected with the shrinkage body of the rod part II. The end of the screw part I is set to be threadedly connected to the left end of the peripheral side surface of the electrode part II, and the end surface of the screw part I is set to be in contact connection with the shrinkage body of the rod part II. The other port of the electrode part II is set to be connected to the second cable, and the end surface of the expansion body of the rod part II is set to be connected to the built-in moving vehicle.

[0027] The present invention designs that the electrode part II is set as a copper tubular body, the rod part II is set as a convex-shaped polytetrafluoroethylene insulating rod, the screw part I is set as an internal hexagonal bolt, and the screw part I is set to be arranged and distributed at intervals along the transverse center line of the electrode part II.

[0028] The technical effects of the above two technical solutions are as follows: achieving full-contact connection to the water body in the high-water-level operating pipeline.

[0029] The present invention designs that the first cable, the second cable, and the third cable are respectively set as power cables. One end of the first cable is set to be connected to the grounding electrode, the other end of the first cable and one end of the third cable are respectively set to be connected to the power supply, the other end of the third cable and one end of the second cable are respectively set to be connected to the current detector, the other end of the second cable is respectively set to be connected to the probe electrode, and the second cable is respectively set to be wound and connected to the wire-releasing reel assembly and the wire-storage assembly. The second cable is set to be connected to the built-in moving vehicle in a penetrating manner.

[0030] The technical effects of the above technical solutions are as follows: achieving connection at the segmented part.

[0031] The present invention designs that the external carrier vehicle is set to include a vehicle body, a frame part I, and a handle part. A receiving hole body is provided at the right end of the frame plate of the vehicle body. The outer side of the upper horizontal part on the right side of the frame part I is set to be connected to the end of the horizontal part of the handle part, and the upper end surface of the lower horizontal part on the right side of the frame part I is set to be connected to the power supply. The upper end surface of the upper horizontal part on the right side of the frame part I and the upper end surface of the vertical part of the frame part I are respectively set to be connected to the current detector, and the middle of the left horizontal part of the frame part I and the upper end surface of the frame plate of the vehicle body is set to be connected to the wire-releasing reel assembly. The left side of the upper end surface of the frame plate of the vehicle body is set to be connected to the wire-storage assembly, and the right side of the upper end surface of the frame plate of the vehicle body and the receiving hole body are respectively set to be connected to the grounding electrode.

[0032] The present invention designs that the vehicle body is set as a moving vehicle body with casters at the lower end, the frame part I is set as a cross-shaped frame body, the handle part is set as a U-shaped rod body, and the receiving hole body is set as a hole body.

[0033] The technical effects of the above two technical solutions are as follows: It realizes the support of the moving vehicle body by the upper mounting body.

[0034] The present invention is designed such that the built-in moving vehicle is set to include a frame part II, a power shaft part, a spiral blade part, a beam part I, a beam part II, a screw part II, a lower wheel frame part, an upper wheel frame part, a counterweight part, and a screw part III. The vertical part of the frame part II is set to be mainly connected to the right end of the beam part I. The left side of the lower end surface of the outer horizontal part of the beam part I is set to be connected to the upper end surface of the beam part II. One end of the power shaft part is set to be rotatably connected to the lower end of the vertical part of the frame part II. The motor housing located at one end of the power shaft part is set to be connected to the lower right side of the vertical part of the frame part II through an intermediate connecting rod. The other end of the power shaft part is set to be rotatably connected to the lower end of the beam part II. The peripheral side surface of the power shaft part is set to be connected to the spiral blade part. The upper end surface of the horizontal part of the frame part II is set to be threadedly connected to the screw part II. The outer horizontal part of the beam part I is set to be connected to the counterweight part in a penetrating manner. The outer side surface of the counterweight part is set to be threadedly connected to the screw part III. The inner end surface of the screw part III is set to be in contact connection with the outer horizontal part of the beam part I. The end of the inner horizontal part of the beam part I is set to be connected to the lower wheel frame part. The upper wheel frame part is set to be connected to the lower wheel frame part. The lower wheel frame part is set to be connected to the probe electrode. The horizontal part of the frame part II is set to be connected to the second cable in a sleeved manner. The inner end surface of the screw part II is set to be in contact connection with the second cable.

[0035] The present invention is designed such that the frame part II is set to be a U-shaped beam body with a T-shaped hole in the horizontal part. The vertical hole of the T-shaped hole of the frame part II is set to be threadedly connected to the screw part II. The horizontal hole of the T-shaped hole of the frame part II is set to be connected to the second cable. The power shaft part is set to be a rod-shaped body. The beam part I is set to be a Z-shaped strip body. The beam part II is set to be a straight strip body. The screw part II and the screw part III are respectively set to be inner hexagon bolts. The counterweight part is set to be a block body with a T-shaped hole. The longitudinal hole of the T-shaped hole of the counterweight part is set to be threadedly connected to the screw part III. The horizontal hole of the T-shaped hole of the counterweight part is set to be connected to the beam part I.

[0036] The technical effects of the above two technical solutions are as follows: It realizes the rotational propulsion and retraction movement of the spiral blade part, and improves the movement performance in the pipeline operating at high water levels.

[0037] The present invention is designed that the lower wheel frame portion is configured to include a frame portion III, a spring portion II, a rod wheel I and a rod wheel II, and the vertical portion of the frame portion III is respectively configured to be through-connected with the inner transverse end of the beam portion I and the spring portion II, one end of the spring portion II is configured to be contact-connected with the vertical lower flange end of the frame portion III, and the other end of the spring portion II is configured to be contact-connected with the inner transverse end of the beam portion I, one side of the vertical lower flange end of the frame portion III is configured to be connected with the rod wheel I, and the other side of the vertical lower flange end of the frame portion III is configured to be connected with the rod wheel II, and the transverse portion of the frame portion III is respectively configured to be connected with the upper wheel frame portion and the probe electrode.

[0038] The present invention is designed that the frame part III is configured as a U-shaped beam-like body with a through hole body in the middle of the horizontal part and a convex U-shaped lower end head in the vertical part, and the through hole body of part III is configured to be connected to the upper wheel frame part, the spring part II is configured as a columnar spring, and the rod wheel I and the rod wheel II are respectively configured as components having a beam installed on the frame part III, a longitudinal axis installed on the lower end head of the beam, and a wheel body installed on the longitudinal axis body.

[0039] The present invention is designed that the upper wheel frame portion is configured to include a rod portion III, a spring portion III, a rod wheel III and a rod wheel IV, and one side of the upper end face of the rod portion III is configured to be connected to the rod wheel III, the other side of the upper end face of the rod portion III is configured to be connected to the rod wheel IV, and the lower end head of the rod portion III is respectively configured to be through-connected to the through-hole body of the frame portion III and the spring portion III, one end head of the spring portion III is configured to be contact-connected to the lower end face of the transverse portion of the frame portion III, and the other end head of the spring portion III is configured to be contact-connected to the lower flange end head of the rod portion III.

[0040] The present invention is designed in which the rod portion III is configured as a beam-shaped body with a convex lower end and the spring portion III is configured as a columnar spring, and the rod wheel III and the rod wheel IV are respectively configured as components having a beam installed on the rod portion III, a longitudinal axis installed on the upper end of the beam, and a wheel body installed on the longitudinal axis.

[0041] The technical effect of the above four technical solutions is that: guiding movement is achieved in a high water level operating pipeline.

[0042] The present invention is designed that the pay-off reel assembly is configured to include a power source part, a rod part IV and a rod part V, and the end shaft of the power source part is configured to be connected to one of the end heads of the rod part IV, the peripheral side surface of the rod part IV is configured to be connected to the middle of the rod part V, and the shell of the power source part is configured to be connected to the external carrying vehicle through an intermediate connecting rod, the end head of the rod part IV is configured to be rotatably connected to the external carrying vehicle, and the rod part V is configured to be distributed corresponding to the line storage assembly, and the rod part V is configured to be connected to the second cable in an accommodating manner.

[0043] In the present invention, the power source part is designed as a driving motor, the rod part IV is designed as a circular shaft body, the rod part V is designed as a C-shaped rod body, and the rod part V is arranged at intervals along the circumferential line of the rod part IV.

[0044] The technical effects of the above two technical solutions are as follows: The powered winding and unwinding movement of the second cable is achieved.

[0045] In the present invention, the wire storage assembly is designed to include a plate part, a rod wheel VI, a rod wheel VII, a rod wheel VIII, and a rod part VI. The upper part of the right side surface of the plate part is connected to the rod wheel VI, the lower parts of the left side surface of the plate part are respectively connected to the rod wheel VII and the rod wheel VIII, the edge of the upper end surface of the plate part is connected to the inner end surface of the rod part VI, the lower end surface of the plate part is connected to an external carrier vehicle through an intermediate connecting rod, and the rod wheel VI, the rod wheel VII, the rod wheel VIII, and the rod part VI are respectively in contact connection with the second cable.

[0046] In the present invention, the plate part is designed as a U-shaped sheet body and is arranged obliquely with respect to the external carrier vehicle. The rod wheel VI, the rod wheel VII, and the rod wheel VIII are respectively designed as components having a strip beam installed on the plate part, a longitudinal shaft body installed at the outer end of the strip beam, and a wheel body installed on the longitudinal shaft body. The peripheral annular groove on the wheel body of the rod wheel VI is in a butt joint connection with the second cable, the peripheral annular grooves on the wheel bodies of the rod wheel VII and the rod wheel VIII are in a clamping connection with the second cable, and the rod part VI is designed as a rod body, arranged in a double row with respect to the plate part, and arranged at intervals along the vertical center line of the plate part.

[0047] The technical effects of the above two technical solutions are as follows: The storage of the second cable by its own weight downward movement is achieved.

[0048] ​​​​​​The present invention designs a defect and disease detection method based on a high-water-level operating pipeline, the steps of which are: a power supply enables current to pass through a ground electrode, a probe electrode and a current detector; a cable group enables the power supply, the ground electrode, the probe electrode and the current detector to be connected in series; the ground electrode, the probe electrode and the current detector enable online monitoring of the current value between the high-water-level operating pipeline and the earth; and impedance changes caused by the defect and disease detection of the high-water-level operating pipeline are used as detection signals.

[0051] The technical effect of the above technical solution is: highlighting the technical feature of using the impedance change caused by the defect and disease detection of the high-water-level operating pipeline as a detection signal, and introducing its application in the technical field of defect and disease detection methods based on high-water-level operating pipelines.

[0052] The present invention is designed to have the following steps: when it is necessary to detect defects and diseases in a high-water-level running pipeline, the built-in moving vehicle is placed in the high-water-level running pipeline, and under the elastic energy storage action of the spring part II, the rod wheels I and II are made to act on the lower part of the high-water-level running pipeline, and under the elastic energy storage action of the spring part III, the rod wheels III and IV are made to act on the upper part of the high-water-level running pipeline, the spiral blade part is placed on the lower part of the high-water-level running pipeline, the external carrying vehicle is placed on the pipe foundation outside the high-water-level running pipeline, a downward force is applied to the rod part I to overcome the elastic energy storage of the spring part I, so that the vertical part of the rod part I enters the pipe foundation outside the high-water-level running pipeline, so that the electrode part I is in contact with the pipe foundation outside the high-water-level running pipeline, and the first cable and the second cable are used. The cable and the third cable make the current detector, power supply, ground electrode and probe electrode in a series connection state, so that the power source part and the motor located at one end of the power shaft part are in a working state, and the power source part drives the rod part IV to rotate between the vehicle body and the frame part I, so that the second cable located on the rod part V is in a reeling state, and the unreeled second cable enters the plate part through the rod wheel VI, and performs a circular motion on the rod part VI, and the unreeled second cable is transported to the built-in moving vehicle through the rod wheel VII and the rod wheel VIII, and the motor located at one end of the power shaft part drives the spiral blade part to rotate through the power shaft part, so that the rod wheel I, the rod wheel II, the rod wheel III and the rod wheel IV move on the high water level running pipeline, so that the probe electrode moves on the high water level running pipeline. The rod part II and the rod part I are connected to the frame part of the vehicle body, and the frame part I is connected to the frame part of the vehicle body. ... The cable makes a circular motion in the opposite direction on the rod part VI, and the second cable on the rod part V is put into a reeling state through the rod wheel VI. At the same time, the motor located on one end of the power shaft drives the spiral blade part to rotate in the opposite direction through the power shaft, so that the rod wheels I, II, III and IV move in the opposite direction on the high-water-level running pipe, and the built-in sports vehicle is driven out of the high-water-level running pipe. When the built-in sports vehicle is driven out of the high-water-level running pipe, the power source part and the motor located on one end of the power shaft are placed in a non-working state, so that the vertical part of the rod part I is pulled out from the foundation outside the pipe of the high-water-level running pipe. Under the elastic energy storage action of the spring part I, the electrode part I is separated from the foundation outside the pipe of the high-water-level running pipe.

[0053] The technical effect of the above technical solution is that it realizes the detection operation of defects and diseases of high-water-level operating pipelines by current signals.

[0054] In this technical solution, the power supply, current detector, grounding electrode and probe electrode are basic components and are also necessary technical features of the present invention. The external carrying vehicle, the internal moving vehicle, the pay-off reel assembly, the wire storage assembly, the first cable, the second cable and the third cable are functional components and are features for achieving other technical effects of the present invention. The design of the vehicle body, frame part I, handle part, accommodating hole body, electrode part I, rod part I, spring part I, lining part, accommodating trough body, electrode part II, rod part II, screw part I, frame part II, power shaft part, spiral blade part, beam part I, beam part II, screw part II, lower wheel frame part, upper wheel frame part, counterweight part, screw part III, frame part III, spring part II, rod wheel I, rod wheel II, rod part III, spring part III, rod wheel III, rod wheel IV, power source part, rod part IV, rod part V, plate part, rod wheel VI, rod wheel VII, rod wheel VIII and rod part VI are technical features that comply with the Patent Law and its implementing rules.

[0055] In this technical solution, the impedance change caused by the defect and disease detection of the high-water-level running pipeline is used as a detection signal by the ground electrode, the probe electrode and the current detector.

[0056] In this technical solution, the power supply, ground electrode, probe electrode, current detector and cable group, which use the impedance change caused by the defect and disease detection of the high-water-level pipeline as the detection signal, are important technical features. In the technical field of defect and disease detection devices and methods based on high-water-level pipelines, this solution is novel, creative and practical. The terms in this technical solution can be explained and understood using the patent literature in this technical field. IV. Description of the Figures

[0057] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0058] Figure 1 This is a schematic diagram of one of the first embodiments of a defect and disease detection device based on a high water level operating pipeline of the present invention.

[0059] Figure 2 is a schematic structural diagram of the ground electrode 4,

[0060] Figure 3Schematic diagram of the connection between the lower wheel frame portion 67 and the upper wheel frame portion 68,

[0061] Figure 4 This is the measured data diagram of the pipeline electrical leak detector in the actual measurement project case.

[0062] Figure 5 This is the measured data diagram of the pipeline electrical leak detector in the measured engineering case 2.

[0063] Figure 6 This is the measured data diagram of the pipeline electrical leak detector in the measured engineering case 3.

[0064] Figure 7 This is the measured data diagram of the four pipeline electrical leak detectors in the actual measurement project case.

[0065] Figure 8 This is the measured data diagram of the pipeline electrical leak detector in the measured engineering case 5.

[0066] External carrier vehicle 1, power supply 2, current detector 3, ground electrode 4, probe electrode 5, internal moving vehicle 6, pay-off reel assembly 7, storage assembly 8, first cable 9, second cable 91, third cable 92, vehicle body 11, frame part I-12, handle part 13, receiving hole 14, electrode part I-41, rod part I-42, spring part I-43, lining part 44, receiving trough 45, electrode part II-51, rod part II-52, screw part I-53, frame part II-61, power shaft -62, spiral blade part-63, beam part I-64, beam part II-65, screw part II-66, lower wheel frame part-67, upper wheel frame part-68, counterweight block part-69, screw part III-60, frame part III-10, spring part II-20, rod wheel I-30, rod wheel II-40, rod part III-50, spring part III-60, rod wheel III-70, rod wheel IV-80, power source part-71, rod part IV-72, rod part V-73, plate part-81, rod wheel VI-82, rod wheel VII-83, rod wheel VIII-84, rod part VI-85. V. Specific Implementation Methods

[0067] According to the Examination Guidelines, terms such as “having”, “including” and “comprising” used in the present invention should be understood as not dispensing with the existence or addition of one or more other elements or their combinations.

[0068] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0069] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0070] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. In addition, unless otherwise specified, the equipment and materials used in the following examples are commercially available. If the processing conditions are not clearly stated, please refer to the purchased product manual or follow the conventional methods in the field.

[0071] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0072] A defect and disease detection device based on high water level running pipeline, Figure 1 This is one of the first embodiments of the present invention, and this embodiment is specifically described in conjunction with the accompanying drawings. It includes an external carrying vehicle 1, a power supply 2, a current detector 3, a grounding electrode 4, a probe electrode 5, an internal moving vehicle 6, a pay-out reel assembly 7 and a wire storage assembly 8, a first cable 9, a second cable 91 and a third cable 92, and the power supply 2, the current detector 3, the grounding electrode 4, the pay-out reel assembly 7 and the wire storage assembly 8 are respectively arranged on the external carrying vehicle 1, the probe electrode 5 is arranged on the internal moving vehicle 6, and a third cable 92 is arranged between the power supply 2 and the current detector 3, a first cable 9 is arranged between the grounding electrode 4 and the power supply 2, and a second cable 91 is arranged between the current detector 3 and the pay-out reel assembly 7, the wire storage assembly 8 and the probe electrode 5.

[0073] The second embodiment of the present invention will be specifically described in conjunction with the accompanying drawings for this embodiment.

[0074] In this embodiment, the external carrier vehicle 1 is provided with a vehicle body 11, a first frame part 12 and a handle part 13. A receiving hole body 14 is provided at the right end of the frame plate of the vehicle body 11. The outer side of the upper horizontal part on the right side of the first frame part 12 is provided to be connected to the end of the horizontal part of the handle part 13, and the upper end face of the lower horizontal part on the right side of the first frame part 12 is provided to be connected to the power supply 2. The upper end face of the upper horizontal part on the right side of the first frame part 12 and the upper end face of the vertical part of the first frame part 12 are respectively provided to be connected to the current detector 3, and the middle of the left horizontal part of the first frame part 12 and the upper end face of the frame plate of the vehicle body 11 is provided to be connected to the wire pay-off reel assembly 7. The left side of the upper end face of the frame plate of the vehicle body 11 is provided to be connected to the wire storage assembly 8, and the right side of the upper end face of the frame plate of the vehicle body 11 and the receiving hole body 14 are respectively provided to be connected to the grounding electrode 4.

[0075] Through the external carrier vehicle 1, support connection points for the power supply 2, the current detector 3, the grounding electrode 4, the wire pay-off reel assembly 7 and the wire storage assembly 8 are formed. By the first frame part 12, the connection with the power supply 2 is achieved, and the connection with the current detector 3 is achieved. By the vehicle body 11 and the receiving hole body 14, the connection with the grounding electrode 4 is achieved. By the vehicle body 11, the connection with the wire pay-off reel assembly 7 is achieved, and the connection with the wire storage assembly 8 is achieved. By the handle part 13, the handling of the operator's hand gripping is achieved. Its technical purpose is: to be used as a support carrier for the power supply 2, the current detector 3, the grounding electrode 4, the wire pay-off reel assembly 7 and the wire storage assembly 8.

[0076] In this embodiment, the vehicle body 11 is set as a moving vehicle body with casters at the lower end, the first frame part 12 is set as a cross-shaped frame body, the handle part 13 is set as a U-shaped rod body, and the receiving hole body 14 is set as a hole body.

[0077] Its technical purpose is: to achieve the moving support for the power supply 2, the current detector 3, the grounding electrode 4, the wire pay-off reel assembly 7 and the wire storage assembly 8.

[0078] In this embodiment, the power supply 2 is set as a power supply with a rated voltage of AC220V, and the lower end face of the power supply 2 is set to be in contact connection with the external carrier vehicle 1. One port of the power supply 2 is set to be connected to the first cable 9, and the other port of the power supply 2 is set to be connected to the third cable 92.

[0079] Through the power supply 2, a support connection point is formed for the external carrier vehicle 1, the first cable 9 and the third cable 92. The power supply 2 realizes the connection with the external carrier vehicle 1, the connection with the second cable 91, and the connection with the third cable 92. Its technical purpose is to be used as a component for supplying AC220V voltage.

[0080] In this embodiment, the current detector 3 is set as a current tester and the lower end surface portion of the current detector 3 is set to be contact-connected with the external carrier vehicle 1, one of the ports of the current detector 3 is set to be connected with the second cable 91 and another port of the current detector 3 is set to be connected with the third cable 92.

[0081] Through the current detector 3, a support connection point is formed for the external carrier vehicle 1, the second cable 91 and the third cable 92. The current detector 3 realizes the connection with the external carrier vehicle 1, the connection with the second cable 91, and the connection with the third cable 92. Its technical purpose is to serve as a component for measuring the current value between the ground electrode 4 and the probe electrode 5.

[0082] In this embodiment, the grounding electrode 4 is configured to include an electrode portion I41, a rod portion I42, a spring portion I43 and a lining portion 44, and a receiving groove body 45 is provided on the peripheral side surface of the vertical portion of the rod portion I42, the receiving groove body 45 is configured to be connected to the lining portion 44 and the electrode portion I41 is configured to be embedded in the lining portion 44, the inner side surface of the lining portion 44 is configured to be connected to the inner wall of the receiving groove body 45 and the outer side surface of the lining portion 44 is configured to be connected to the inner side surface of the electrode portion I41, the vertical portion of the rod portion I42 is respectively configured to be through-connected to the spring portion I43 and the external carrier vehicle 1 and one of the end heads of the spring portion I43 is configured to be in contact with the horizontal portion of the rod portion I42, the other end head of the spring portion I43 is configured to be in contact with the external carrier vehicle 1 and the upper end of the outer side surface of the electrode portion I41 is configured to be connected to the first cable 9.

[0083] A supporting connection point for the external carrier vehicle 1 and the first cable 9 is formed by the grounding electrode 4. The connection with the external carrier vehicle 1 is realized by the rod portion Ⅰ 42 and the spring portion Ⅰ 43. The connection with the first cable 9 is realized by the electrode portion Ⅰ 41. The connection processing between the electrode portion Ⅰ 41 and the rod portion Ⅰ 42 is realized by the lining portion 44 and the accommodating groove body 45. The technical purpose is to be used as a component for connecting to the earth.

[0084] In this embodiment, the electrode portion I 41 is configured as a copper block and the rod portion I 42 is configured as an L-shaped rod, the spring portion I 43 is configured as a columnar spring and the lining portion 44 is configured as a PC insulating sheet, and the accommodating groove 45 is configured as a U-shaped groove.

[0085] The technical purpose is to realize the insertion connection processing with the ground.

[0086] In this embodiment, the probe electrode 5 is configured to include an electrode part II51, a rod part II52 and a screw part I53, and one of the ports of the electrode part II51 is configured to be connected in a sleeve-type manner to the contraction body of the rod part II52, the end head of the screw part I53 is configured to be threadedly connected to the left end of the peripheral side surface of the electrode part II51 and the end face of the screw part I53 is configured to be contact-type connected to the contraction body of the rod part II52, another port of the electrode part II51 is configured to be connected to the second cable 91 and the end face of the extended body of the rod part II52 is configured to be connected to the built-in sports car 6.

[0087] Through the probe electrode 5, a support connection point for the built-in moving vehicle 6 and the second cable 91 is formed, the rod part II 52 realizes the connection with the built-in moving vehicle 6, the electrode part II 51 realizes the connection with the second cable 91, and the screw part I 53 realizes the connection processing between the electrode part II 51 and the rod part II 52. Its technical purpose is to be used as a component for connecting to the water body located in the pipeline.

[0088] In this embodiment, the electrode portion II51 is configured as a copper tubular body and the rod portion II52 is configured as a convex polytetrafluoroethylene insulating rod, the screw portion I53 is configured as a hexagon socket bolt and the screw portion I53 is configured to be spaced and distributed along the transverse center line of the electrode portion II51.

[0089] The technical purpose is to realize the arc-shaped connection with the water body in the pipeline.

[0090] In this embodiment, the built-in moving vehicle 6 is provided to include a frame part II 61, a power shaft part 62, a spiral blade part 63, a beam part I 64, a beam part II 65, a screw part II 66, a lower wheel frame part 67, an upper wheel frame part 68, a counterweight part 69, and a screw part III 60. The vertical part of the frame part II 61 is set to be mainly connected to the right end of the beam part I 64. The left side of the lower end face of the outer horizontal part of the beam part I 64 is set to be connected to the upper end face of the beam part II 65. One end of the power shaft part 62 is set to be rotatably connected to the lower end of the vertical part of the frame part II 61. The motor housing located at one end of the power shaft part 62 is set to be connected to the lower right side of the vertical part of the frame part II 61 through an intermediate connecting rod. The other end of the power shaft part 62 is set to be rotatably connected to the lower end of the beam part II 65. The peripheral side of the power shaft part 62 is set to be connected to the spiral blade part 63. The upper end face of the horizontal part of the frame part II 61 is set to be threadedly connected to the screw part II 66. The outer horizontal part of the beam part I 64 is set to be connected to the counterweight part 69 in a penetrating manner. The outer side of the counterweight part 69 is set to be threadedly connected to the screw part III 60. The inner end face of the screw part III 60 is set to be in contact connection with the outer horizontal part of the beam part I 64. The end of the inner horizontal part of the beam part I 64 is set to be connected to the lower wheel frame part 67. The upper wheel frame part 68 is set to be connected to the lower wheel frame part 67. The lower wheel frame part 67 is set to be connected to the probe electrode 5. The horizontal part of the frame part II 61 is set to be in a sleeved connection with the second cable 91. The inner end face of the screw part II 66 is set to be in contact connection with the second cable 91.

[0091] Through the built-in moving vehicle 6, a support connection point for the probe electrode 5 and the second cable 91 is formed. The connection with the probe electrode 5 is realized by the lower wheel frame part 67. The connection with the second cable 91 is realized by the frame part II 61 and the screw part II 66. The pushing movement process of the frame part II 61 and the lower wheel frame part 67 is realized by the power shaft part 62, the spiral blade part 63, the beam part I 64, the beam part II 65, the upper wheel frame part 68, the counterweight part 69, and the screw part III 60. Its technical purpose is to be used as a support carrier for the probe electrode 5.

[0092] In this embodiment, the frame part II 61 is set to be a U-shaped beam body with a T-shaped hole in the horizontal part. The vertical hole of the T-shaped hole of the frame part II 61 is set to be threadedly connected to the screw part II 66. The horizontal hole of the T-shaped hole of the frame part II 61 is set to be connected to the second cable 91. The power shaft part 62 is set to be a rod-shaped body. The beam part I 64 is set to be a Z-shaped strip body. The beam part II 65 is set to be a straight strip body. The screw part II 66 and the screw part III 60 are respectively set to be hexagon socket head bolts. The counterweight part 69 is set to be a block body with a T-shaped hole. The longitudinal hole of the T-shaped hole of the counterweight part 69 is set to be threadedly connected to the screw part III 60. The horizontal hole of the T-shaped hole of the counterweight part 69 is set to be connected to the beam part I 64.

[0093] In this embodiment, the lower wheel frame portion 67 is configured to include a frame portion III10, a spring portion II20, a rod wheel I30 and a rod wheel II40, and the vertical portion of the frame portion III10 is respectively configured to be through-connected with the inner transverse end of the beam portion I64 and the spring portion II20, one end of the spring portion II20 is configured to be contact-connected with the vertical lower flange end of the frame portion III10, and the other end of the spring portion II20 is configured to be contact-connected with the inner transverse end of the beam portion I64, one side of the vertical lower flange end of the frame portion III10 is configured to be connected with the rod wheel I30, and the other side of the vertical lower flange end of the frame portion III10 is configured to be connected with the rod wheel II40, and the transverse portion of the frame portion III10 is respectively configured to be connected with the upper wheel frame portion 68 and the probe electrode 5.

[0094] In this embodiment, the frame portion III10 is configured as a U-shaped beam-like body having a through hole body in the middle of the horizontal portion and a convex U-shaped lower end head in the vertical portion, and the through hole body of portion III10 is configured to be connected to the upper wheel frame portion 68, the spring portion II20 is configured as a columnar spring, and the rod wheel I30 and the rod wheel II40 are respectively configured as components having a beam installed on the frame portion III10, a longitudinal axis installed on the lower end head of the beam, and a wheel body installed on the longitudinal axis body.

[0095] In this embodiment, the upper wheel frame portion 68 is configured to include a rod portion III50, a spring portion III60, a rod wheel III70 and a rod wheel IV80, and one side of the upper end face of the rod portion III50 is configured to be connected to the rod wheel III70, the other side of the upper end face of the rod portion III50 is configured to be connected to the rod wheel IV80, and the lower end head of the rod portion III50 is respectively configured to be through-connected to the through-hole body of the frame portion III10 and the spring portion III60, one of the end heads of the spring portion III60 is configured to be contact-connected to the lower end face of the transverse portion of the frame portion III10, and the other end head of the spring portion III60 is configured to be contact-connected to the lower flange end head of the rod portion III50.

[0096] In this embodiment, the rod portion III50 is configured as a beam-shaped body with a convex lower end and the spring portion III60 is configured as a columnar spring, and the rod wheel III70 and the rod wheel IV80 are respectively configured as components having a beam installed on the rod portion III50, a longitudinal axis installed on the upper end of the beam, and a wheel body installed on the longitudinal axis.

[0097] The technical purpose is to achieve the support of the probe electrode 5 as a moving body.

[0098] In this embodiment, the pay-off reel assembly 7 is configured to include a power source part 71, a rod part IV72 and a rod part V73, and the end shaft of the power source part 71 is configured to be connected to one of the ends of the rod part IV72, the peripheral side surface of the rod part IV72 is configured to be connected to the middle of the rod part V73, and the shell of the power source part 71 is configured to be connected to the external carrying vehicle 1 through an intermediate connecting rod, the end of the rod part IV72 is configured to be rotatably connected to the external carrying vehicle 1, and the rod part V73 is configured to be distributed corresponding to the line storage assembly 8, and the rod part V73 is configured to be accommodated and connected to the second cable 91.

[0099] Through the pay-out reel assembly 7, a support connection point is formed for the external carrying vehicle 1, the wire storage assembly 8 and the second cable 91. The power source part 71 and the rod part IV 72 realize the connection with the external carrying vehicle 1, and the rod part V 73 realizes the connection with the wire storage assembly 8 and the connection with the second cable 91. Its technical purpose is to be used as a component for the reeling and winding movement of the second cable 91.

[0100] In this embodiment, the power source part 71 is configured as a driving motor and the rod part IV 72 is configured as a circular shaft, the rod part V 73 is configured as a C-shaped rod and the rod part V 73 is configured to be spaced apart and distributed along the circumference of the rod part IV 72 .

[0101] The technical purpose is to realize a component for performing annular interval reeling and unreeling motion on the second cable 91 .

[0102] In this embodiment, the wire storage assembly 8 is configured to include a plate portion 81, a rod wheel VI 82, a rod wheel VII 83, a rod wheel VIII 84 and a rod portion VI 85, and the upper right side surface of the plate portion 81 is configured to be connected to the rod wheel VI 82, the lower left side surface of the plate portion 81 is respectively configured to be connected to the rod wheel VII 83 and the rod wheel VIII 84, and the upper end surface edge of the plate portion 81 is configured to be connected to the inner end surface of the rod portion VI 85, the lower end surface of the plate portion 81 is configured to be connected to the external carrier vehicle 1 through an intermediate connecting rod, and the rod wheel VI 82, the rod wheel VII 83, the rod wheel VIII 84 and the rod portion VI 85 are respectively configured to be contact-connected to the second cable 91.

[0103] Through the wire storage assembly 8, a support connection point for the external carrier vehicle 1 and the second cable 91 is formed. The plate portion 81 realizes the connection with the external carrier vehicle 1, and the rod wheel VI 82, the rod wheel VII 83, the rod wheel VIII 84 and the rod portion VI 85 realize the connection with the second cable 91. Its technical purpose is to be used as a component for storing the second cable 91.

[0104] In this embodiment, the plate portion 81 is arranged as a U-shaped sheet body and is arranged in an inclined manner with respect to the external carrier vehicle 1. The rod wheel VI 82, rod wheel VII 83, and rod wheel VIII 84 are respectively arranged as components having a strip beam mounted on the plate portion 81, a longitudinal shaft body mounted on the outer end of the strip beam, and a wheel body mounted on the longitudinal shaft body. The peripheral annular groove on the wheel body of the rod wheel VI 82 is arranged to be in a butt joint connection with the second cable 91. The peripheral annular grooves on the wheel bodies of the rod wheel VII 83 and the rod wheel VIII 84 are arranged to be in a clamping connection with the second cable 91. The rod portion VI 85 is arranged as a rod-shaped body, is arranged in a double-row distribution with respect to the plate portion 81, and is arranged to be spaced and arranged along the vertical center line of the plate portion 81.

[0105] Its technical purpose is to achieve the overlapping storage of the second cable 91.

[0106] In this embodiment, the first cable 9, the second cable 91, and the third cable 92 are respectively arranged as power cables. One end of the first cable 9 is arranged to be connected to the grounding electrode 4. The other end of the first cable 9 and one end of the third cable 92 are respectively arranged to be connected to the power supply 2. The other end of the third cable 92 and one end of the second cable 91 are respectively arranged to be connected to the current detector 3. The other end of the second cable 91 is respectively arranged to be connected to the probe electrode 5. The second cable 91 is respectively arranged to be in a surrounding connection with the wire pay-off reel assembly 7 and the wire storage assembly 8. The second cable 91 is arranged to be in a penetrating connection with the built-in moving vehicle 6.

[0107] Through the first cable 9, the second cable 91, and the third cable 92, support connection points for the power supply 2, the current detector 3, the grounding electrode 4, the probe electrode 5, the built-in moving vehicle 6, the wire pay-off reel assembly 7, and the wire storage assembly 8 are formed. Through the first cable 9 and the third cable 92, the connection with the power supply  2 is achieved. Through the second cable 91 and the third cable 92, the connection with the current detector 3 is achieved. Through the first cable 9, the connection with the grounding electrode 4 is achieved. Through the second cable 91, the connection with the probe electrode 5 is achieved. The connection with the built-in moving vehicle 6 is achieved. The connection with the wire pay-off reel assembly 7 is achieved. The connection with the wire storage assembly 8 is achieved. Its technical purpose is to be used as a component for connecting the power supply 2, the current detector 3, the grounding electrode 4, and the probe electrode 5 together.

[0108] In this embodiment, the current detector 3 and the power supply 2, the ground electrode 4, the probe electrode 5, the first cable 9, the second cable 91 and the third cable 92 are arranged to be distributed in a manner of detecting current signals, and the current detector 3, the power supply 2, the ground electrode 4, the probe electrode 5, the first cable 9, the second cable 91 and the third cable 92 and the built-in moving vehicle 6 are arranged to be distributed in a manner of moving within the tube, the current detector 3, the power supply 2, the ground electrode 4, the probe electrode 5, the first cable 9, the second cable 91 and the third cable 92 and the external carrying vehicle 1, the pay-off reel assembly 7 and the storage assembly 8 are arranged to be distributed in a manner of releasing cables, the plate portion 81 is arranged to be connected to the vehicle body 11, the power source portion 71 is arranged to be connected to the frame portion I12, the rod portion IV72 is respectively arranged to be connected to the vehicle body 11 and the frame portion I12, the rod portion II52 is arranged to be connected to the frame portion III10, the rod portion I42 is arranged to be connected to the accommodating hole body 14, and the spring portion I43 is arranged to be connected to the vehicle body 11.

[0109] The present invention will be further described below with reference to the examples. The following examples are intended to illustrate the present invention rather than to further limit the present invention.

[0110] A method for detecting defects and diseases in a high-water-level operating pipeline comprises the following steps: when it is necessary to detect defects and diseases in a high-water-level operating pipeline, a built-in moving vehicle 6 is placed in the high-water-level operating pipeline; under the elastic energy storage action of the spring portion II 20, the rod wheels I 30 and II 40 act on the lower portion of the high-water-level operating pipeline; under the elastic energy storage action of the spring portion III 60, the rod wheels III 70 and IV 80 act on the upper portion of the high-water-level operating pipeline; and the spiral blade portion 63 is placed on the lower portion of the high-water-level operating pipeline.

[0111] Place the external carrier vehicle 1 on the foundation outside the high-water-level pipeline, apply downward force to the rod portion I42, overcome the elastic energy storage of the spring portion I43, and make the vertical portion of the rod portion I42 enter the foundation outside the high-water-level pipeline, so that the electrode portion I41 is in contact with the foundation outside the high-water-level pipeline, and the current detector 3, power supply 2, ground electrode 4 and probe electrode 5 are connected in series through the first cable 9, the second cable 91 and the third cable 92.

[0112] The power source part 71 and the motor at one end of the power shaft part 62 are in working state, and the rod part IV 72 is driven to rotate between the vehicle body 11 and the frame part I 12 through the power source part 71, so that the second cable 91 located on the rod part V 73 is in the unwinding state. The unwound second cable 91 enters the plate part 81 through the rod wheel VI 82, and performs a circular motion on the rod part VI 85. The unwound second cable 91 is transported to the built-in motion vehicle 6 through the rod wheel VII 83 and the rod wheel VIII 84. The motor at one end of the power shaft part 62 drives the spiral blade part 63 to rotate through the power shaft part 62, so that the rod wheels I 30, II 40, III 70 and The rod wheel IV80 moves on the high-water-level pipeline, causing the probe electrode 5 to move on the high-water-level pipeline. A current measurement loop is formed by the electrode portion II51, the electrode portion I41, the water in the pipeline, and the ground outside the high-water-level pipeline. When the inner wall of the pipeline is intact, the impedance between the electrode portion II51 and the electrode portion I41 is large, and the measured current value of the current detector 3 is at a low value. When there is a defect in the inner wall of the pipeline, a low-impedance path exists between the electrode portion II51 and the electrode portion I41, and the measured current value of the current detector 3 is at a high value. The change in the measured current value of the current detector 3 can be used to determine the length of the vertical and horizontal cracks at the leakage point and the defect disease of the pipe mouth being disconnected.

[0113] After completing the defect detection of the high water level running pipeline, the rod part IV 72 is driven to rotate in the opposite direction between the vehicle body 11 and the frame part I 12, and the second cable 91 is transported in the opposite direction to the rod part VI 85 between the rod wheel VII 83 and the rod wheel VIII 84. The second cable 91 is rotated in the opposite direction on the rod part VI 85, and the second cable 91 is wound on the rod part V 73 through the rod wheel VI 82. At the same time, the motor at one end of the power shaft 62 drives the spiral blade part 63 to rotate in the opposite direction through the power shaft 62, so that Rod wheel I30, rod wheel II40, rod wheel III70 and rod wheel IV80 move in opposite directions on the high water level operation pipeline to drive the built-in motion vehicle 6 out of the high water level operation pipeline. When the built-in motion vehicle 6 is driven out of the high water level operation pipeline, the power source part 71 and the motor located at one end of the power shaft part 62 are placed in a non-working state, and the vertical part of the rod part I42 is pulled out from the foundation outside the pipe of the high water level operation pipeline. Under the elastic energy storage action of the spring part I43, the electrode part I41 is separated from the foundation outside the pipe of the high water level operation pipeline.

[0114] Measured engineering case 1:

[0115] The project site is located at Baofeng Road in a certain city. The measured pipeline length is 28 meters and the pipe diameter is 1 meter. It is a reinforced concrete pipe located in an industrial park. The measured data of the pipeline electrical leak detector are as follows: Figure 4 ,

[0116] The attached current curve (green) and filter curve (yellow) show a relatively large crack at 7 meters (distance 700) into the pipeline. This crack is classified as medium, causing the leakage current of the electrical leak detector to reach a high peak at this location. The filter curve indicates that the crack at this location is approximately 3 to 4 centimeters in size.

[0117] Judging from the overall trend of the current curve, there are many extremely high points in the current value, and the peaks shown in the filter curve are mostly about 2 meters apart. From this, it can be seen that most of the current maximum values should be caused by the disconnection of the pipe outlet at the pipeline connection. At 24 meters (distance 2400) of the pipeline, the current value is relatively large and the area displayed by the filter is also relatively large. It can be seen that the disconnection at this outlet is more serious than that at other positions.

[0118] There are also cracks and pipe joints falling off in other parts, which are all small defects. Although the current value is extremely high, it is not obvious. Combining the above data and graphics, the pipeline defect statistics are listed in Table 1:

[0119] Table 1 Statistics of pipeline defects

[0120]

[0121] Measured engineering case 2:

[0122] The project site is located on Lianfeng Road in a certain city. Lianfeng Road and Baofeng Road are perpendicular to each other and are located in the same industrial park. The detection length is 28 meters. The pipe material is reinforced concrete pipe. The measured data of electrical leakage detection is as shown in the attached Figure 5 ,

[0123] The current data of this section of pipeline shows that the current value (green) fluctuates greatly in the first 10 meters (distance 1000), while the current value fluctuates less in the latter part. This shows that the main leakage points or pipe joint detachment locations of the pipeline are mainly concentrated in the first 10 meters.

[0124] On the current curve, the current is at its maximum at 4 meters. The filter curve (yellow) indicates a defect there. The entire section of the pipeline being tested is a reinforced concrete pipe. From the starting point to 4 meters, it is exactly at the pipe joint. This indicates that a pipe joint has fallen off at this location. At 1 meter on the current curve, there is a maximum value, and in the filter graph, the highest filter value also appears, indicating that there is a crack there.

[0125] In other parts, there are small cracks at 5 meters and 7 meters, and pipe sections are falling off at 6 meters, 8 meters and 10 meters.

[0126] In the section from 10 to 28 meters, the current is stable and there is no large current peak, indicating that this section of the pipeline is relatively intact compared to the first 10 meters. The overall current value of this section is relatively small compared to the first 10 meters, which is related to the conductivity of the geological environment in these two sections. There may be a small crack between 16 and 17 meters. At 28 meters, since the probe is pulled out of the water, it can be ignored.

[0127] Based on the above data and analysis, the statistical table 2 of pipeline defects is listed:

[0128] Table 2 Pipeline defect statistics

[0129]

[0130] Measured engineering case three:

[0131] The project site is located in a county drainage pipeline. The following test data is the electrical leak detection result of a section of the pipeline. The test length is 110 meters. The pipeline material is HDPE double-wall corrugated pipe. The actual test data of the electrical leak detection is as shown in the attached Figure 6 ,

[0132] From the above data, we can see that the detection current curve (green) of the entire pipeline is relatively stable, and the filter curve (yellow) is also relatively smooth. It can be seen that the pipeline defect situation is relatively good, with a small amount of cracks.

[0133] After the electrical leak detector enters the pipeline, the current of the instrument tends to be stable with no obvious fluctuations. Only between 82m and 84m and between 86m and 90m are there relatively large and continuously rising peaks. It can be seen that there are cracks or pipe sections falling off in these two sections. At 30m, the peak rises sharply and then drops sharply and becomes smooth, so there may be cracks there.

[0134] At 0 meters and 110 meters, the current value rises rapidly. Since the probe is located at the inspection well, it can be judged that there are serious leakage problems or branch pipe connection problems at the inspection wells at both ends of the pipeline.

[0135] Based on the above data and analysis, the statistical table 3 of pipeline defects is listed:

[0136] Table 3 Pipeline defect statistics

[0137]

[0138] Measured engineering case 4:

[0139] The project site is located in a city's drainage pipeline. The following test data is the test result data of a section of the pipeline. The test length is 130 meters. The pipeline is a reinforced concrete pipeline. The actual test data of the electrical leakage test is as shown in the attached Figure 7 ,

[0140] By attaching Figure 7 It is obvious that there are defects in this section of pipeline. The current value changes at each defect location first slowly rise and then slowly fall, and the stability is also relatively good. It can be seen that there are ruptures or disconnections in the pipeline at the above three locations, resulting in leakage.

[0141] The defect at 20 meters is smaller and has a small span, indicating that the rupture here is relatively small and should be a small crack. The filter curve span between 40 meters and 60 meters is larger and the filter peak is also higher, which is also determined to be a small crack. Unlike the previous crack, the crack here may have a longitudinal extension, so the current in the vicinity is relatively high, forming a large span. The defect between 80 meters and 100 meters is a large defect. In this interval, the current continues to rise smoothly to the highest point and then smoothly drops to the normal value. The current value at the highest point is much larger than the current value under normal circumstances, and the span of the filter curve is larger. It can be judged that the rupture here is more serious and it is the key location for repairing the leak.

[0142] Based on the above data and analysis, the statistical table 4 of pipeline defects is listed:

[0143] Table 4 Pipeline defect statistics

[0144]

[0145]

[0146] Actual measurement project case 5:

[0147] The project site is located at Tiane Road in a certain city. The detection length is 28 meters, the pipe diameter is 800mm, and the pipe material is reinforced concrete pipe. The measured data of electrical leakage detection are as follows: Figure 8 ,

[0148] Attachment Figure 8 This is the test data of the electrical leak detector for the Tian'e Road section of a certain city. From the current curve (green) and the filter curve (yellow), we can see that there are many defects in this section of pipe, most of which are pipe disconnection or pipe wall cracks. For example, there are obvious current peaks at 2.18 meters, 4.18 meters, 8.62 meters, 10.64 meters, 12.5 meters, 14.72 meters, 20.93 meters, and 27.44 meters. The electrical leak detection data is consistent with the video detection results of the same pipeline.

[0149] On the current curve, we can also see that there is a significant drop in current at 17 meters. This is because the backfill material of the road where the pipeline is located has different conductivity. The impedance of the backfill material between 0 and 17 meters is low, so the current is generally high and shows a decreasing trend. From 17 to 28 meters, the impedance of the backfill material is high, making the average current in this section relatively small.

[0150] Based on the above data and analysis, the statistical table 5 of pipeline defects is listed:

[0151] Table 5 Pipeline defect statistics

[0152]

[0153] When verifying the present invention, the inventor abandoned the existing technical features of using CCTV detection, sonar detection and QV detection to detect drainage pipes, and first proposed the technical feature of using the impedance change caused by the defect and disease detection of the high-water-level running pipe as the detection signal, and obtained the first unexpected technical effect: the electrical signal was used as the detection signal for the defect and disease of the high-water-level running pipe, thereby improving the detection efficiency of the defect and disease of the high-water-level running pipe. The second unexpected technical effect was obtained: the water body in the high-water-level running pipe was used as the detection medium, and the water body in the high-water-level running pipe was no longer drained, thereby preventing the occurrence of secondary diseases in the high-water-level running pipe during the detection process. The third unexpected technical effect was obtained: the grounding electrode 4 was used to release the electric charge to the earth through a flat surface, which satisfied the charge release treatment at a point on the earth. The fourth unexpected technical effect was obtained: the probe electrode 5 was used to release the electric charge to the water body through an arc surface, which satisfied the charge release treatment at an enlarged area of the water body. The fifth unexpected technical effect was obtained: the external carrier vehicle 1 was used to detect the power supply 2 and the grounding electrode 4 , probe electrode 5, current detector 3, pay-off reel assembly 7 and storage assembly 8 are supported by the frame, which improves the optimization of the installation space of the power supply 2, grounding electrode 4, current detector 3, pay-off reel assembly 7 and storage assembly 8, and obtains the sixth unexpected technical effect: it is realized that the probe electrode 5 is supported by the built-in moving vehicle 6, the spiral blade part 63 generates the movement power, the lower wheel frame part 67 and the upper wheel frame part 68 are used for movement guidance, the counterweight block part 69 and the screw part III 60 are used to adjust the movement center of gravity, and the operation of the pipe at high water level is improved. The movement performance in the pipeline has achieved the seventh unexpected technical effect: the spring part II 20 has achieved the buffering support of the frame part III 10, the elastic energy storage effect of the spring part III 60 has been achieved, and the electrode part II 51 has been put in a vibrating state, and the eighth unexpected technical effect has been achieved: the second cable 91 is wound and unwound by the pay-off reel assembly 7 and the storage assembly 8, and the second cable 91 is in a stable winding and unwinding state under the weight of the plate part 81 and the rod part VI 85, which meets the uniform motion needs of the built-in sports vehicle 6 in the high-water-level running pipeline.

[0154] The second unexpected technical effect was achieved: the installation position and flatness of the track plate were adjusted in advance to ensure the installation accuracy of the sleepers.

[0155] In the second embodiment of the present invention, the power supply 2, the ground electrode 4, the probe electrode 5, the current detector 3 and the cable group are interconnected in such a manner that the impedance change caused by the defect of the high water level pipeline is used as the detection signal.

[0156] In this embodiment, the ground electrode 4, the probe electrode 5 and the current detector 3 are connected to the power supply 2 and the cable group in a manner of online monitoring of the current value between the high water level operating pipeline and the earth.

[0157] In this embodiment, the cable group is configured to include a first cable 9 , a second cable 91 and a third cable 92 .

[0158] In this embodiment, a first accessory device is further included and is arranged on the power source 2 , the ground electrode 4 and the current detector 3 . The first accessory device is arranged as an external carrier vehicle 1 .

[0159] In this embodiment, a second accessory device is further included and is provided on the probe electrode 5 . The second accessory device is provided as a built-in sports vehicle 6 .

[0160] In this embodiment, a third accessory device is further included and is arranged between the cable group, the first accessory device and the probe electrode 5 . The third accessory device is configured to include a wire reel assembly 7 and a wire storage assembly 8 .

[0161] The second embodiment of the present invention is based on the first embodiment.

[0162] The second embodiment of the present invention comprises the following steps: the power supply 2 enables current to flow through the ground electrode 4, the probe electrode 5, and the current detector 3; the cable assembly connects the power supply 2, the ground electrode 4, the probe electrode 5, and the current detector 3 in series; the ground electrode 4, the probe electrode 5, and the current detector 3 enable online monitoring of the current value between the high-water-level operating pipeline and the earth, and realizes that the impedance change caused by the defect and disease detection of the high-water-level operating pipeline is used as a detection signal.

[0163] The second embodiment of the present invention is based on the first embodiment.

[0164] The present invention has the following characteristics:

[0165] 1. Due to the design of the power supply 2, grounding electrode 4, probe electrode 5, current detector 3 and cable group, current passes through the grounding electrode 4, probe electrode 5 and current detector 3 through the power supply 2, and the power supply 2, grounding electrode 4, probe electrode 5 and current detector 3 are connected in series through the cable group. Through the grounding electrode 4, probe electrode 5 and current detector 3, online monitoring of the current value between the high-water-level operating pipeline and the earth is achieved, and the impedance change caused by the defect and disease detection of the high-water-level operating pipeline is used as a detection signal, which solves the technical problem of using CCTV detection, sonar detection and QV detection to detect drainage pipelines. Therefore, it is suitable for detecting defects and diseases of high-water-level operating pipelines.

[0166] 2. Due to the design of the first cable 9 , the second cable 91 and the third cable 92 , segmented connection of the power supply 2 , the ground electrode 4 , the probe electrode 5 and the current detector 3 is achieved.

[0167] 3. Due to the design of the external carrying vehicle 1, the power supply 2, the grounding electrode 4, the current detector 3, the pay-off reel assembly 7 and the wire storage assembly 8 are supported on the vehicle.

[0168] 4. Due to the design of the built-in moving vehicle 6, the probe electrode 5 is driven to move in the high water level running pipeline.

[0169] 5. Due to the design of the pay-out reel assembly 7 and the storage assembly 8, the second cable 91 can be reeled and unreeled.

[0170] 6. Since the design limits the numerical range of the structural shape, the numerical range is the technical feature in the technical solution of the present invention, not the technical feature calculated by formula or obtained through a limited number of tests. Tests have shown that the technical feature of this numerical range has achieved good technical effects.

[0171] 7. Due to the design of the technical features of the present invention, the effects of the technical features individually and in combination with each other have been shown through experiments to have various performance indicators of the present invention that are at least 1.7 times greater than those of the existing ones, and evaluation shows that the present invention has a good market value.

[0172] There are other technical features connected to the power supply 2, ground electrode 4, probe electrode 5, current detector 3 and cable group, which are used as detection signals for impedance changes caused by defects and diseases in high-water-level pipelines. They are all one of the embodiments of the present invention, and the various technical features of the above-mentioned embodiments can be combined arbitrarily. In order to meet the requirements of the Patent Law, Patent Implementing Rules and Examination Guidelines, all possible combinations of the various technical features in the above-mentioned embodiments will no longer be described.

[0173] The above embodiment is only one implementation form of the defect and disease detection device and method based on high water level operating pipeline provided by the present invention. Other variations of the solution provided by the present invention, addition or reduction of components or steps therein, or application of the present invention to other technical fields similar to the present invention, all fall within the scope of protection of the present invention.

Claims

1. A defect and disease detection device for high-water-level pipelines, characterized by: The invention comprises a power supply (2) for providing power supply, a grounding electrode (4) arranged in the foundation outside the high-water-level operating pipeline, a probe electrode (5) arranged in the high-water-level operating pipeline, a current detector (3) for online monitoring of the current value between the grounding electrode (4) and the probe electrode (5), and a cable group arranged between the power supply (2), the current detector (3), the grounding electrode (4) and the probe electrode (5).

2. The defect and disease detection device for high-water-level pipeline according to claim 1 is characterized by: The power supply (2), the grounding electrode (4), the probe electrode (5), the current detector (3) and the cable group are connected to each other in a manner that the impedance change caused by the defect and disease detection of the high water level running pipeline is used as a detection signal.

3. The defect and disease detection device for high-water-level pipeline according to claim 2 is characterized by: The grounding electrode (4), the probe electrode (5) and the current detector (3) are connected to the power supply (2) and the cable group in a manner of online monitoring of the current value between the high water level running pipeline and the earth.

4. The defect and disease detection device for high-water-level pipeline according to claim 1 is characterized by: The cable group is configured to include a first cable (9), a second cable (91) and a third cable (92). Or, it further comprises a first accessory device and the first accessory device is arranged on the power source (2), the grounding electrode (4) and the current detector (3), and the first accessory device is arranged as an external carrier vehicle (1), Or, it further comprises a second accessory device and the second accessory device is arranged on the probe electrode (5), and the second accessory device is arranged as a built-in sports car (6), Alternatively, a third accessory device is further included and is arranged between the cable group and the first accessory device and the probe electrode (5), and the third accessory device is configured to include a wire reel assembly (7) and a wire storage assembly (8).

5. The defect and disease detection device based on high water level running pipeline according to claim 4 is characterized in that: The external carrier vehicle (1) is provided with a power supply (2), a current detector (3), a grounding electrode (4), a wire-reel assembly (7), and a wire storage assembly (8), respectively; the internal moving vehicle (6) is provided with a probe electrode (5), and a third cable (92) is provided between the power supply (2) and the current detector (3); a first cable (9) is provided between the grounding electrode (4) and the power supply (2), and a second cable (91) is provided between the current detector (3) and the wire-reel assembly (7), the wire storage assembly (8), and the probe electrode (5).

6. The defect and disease detection device for high-water-level pipeline according to claim 5 is characterized by: The power supply (2) is configured to have a rated voltage of AC220V and the lower end portion of the power supply (2) is configured to be contact-connected to the external carrier vehicle (1), one port of the power supply (2) is configured to be connected to the first cable (9) and another port of the power supply (2) is configured to be connected to the third cable (92). Alternatively, the current detector (3) is configured as a current tester and the lower end portion of the current detector (3) is configured to be contact-connected to the external carrier vehicle (1), one of the ports of the current detector (3) is configured to be connected to the second cable (91) and another port of the current detector (3) is configured to be connected to the third cable (92), Or, the grounding electrode (4) is configured to include an electrode portion I (41), a rod portion I (42), a spring portion I (43) and a lining portion (44), and a receiving groove (45) is provided on the peripheral side of the vertical portion of the rod portion I (42), the receiving groove (45) is configured to be connected to the lining portion (44) and the electrode portion I (41) is configured to be embedded in the lining portion (44), the inner side surface of the lining portion (44) is configured to be connected to the inner wall of the receiving groove (45) and the outer side surface of the lining portion (44) is configured to be connected to the inner side surface of the electrode portion I (41), the vertical portion of the rod portion I (42) is configured to be through-connected to the spring portion I (43) and the external carrier vehicle (1) respectively, and one end of the spring portion I (43) is configured to be in contact with the horizontal portion of the rod portion I (42), the other end of the spring portion I (43) is configured to be in contact with the external carrier vehicle (1) and the upper end of the outer side surface of the electrode portion I (41) is configured to be connected to the first cable (9), Alternatively, the electrode portion I (41) is configured as a copper block and the rod portion I (42) is configured as an L-shaped rod, the spring portion I (43) is configured as a columnar spring and the lining portion (44) is configured as a PC insulating sheet, and the receiving groove (45) is configured as a U-shaped groove. Alternatively, the probe electrode (5) is configured to include an electrode portion II (51), a rod portion II (52) and a screw portion I (53), and one of the ports of the electrode portion II (51) is configured to be connected in a sleeve-type manner to the contraction body of the rod portion II (52), the end of the screw portion I (53) is configured to be threadedly connected to the left end of the peripheral side surface of the electrode portion II (51), and the end face of the screw portion I (53) is configured to be contact-type connected to the contraction body of the rod portion II (52), another port of the electrode portion II (51) is configured to be connected to the second cable (91), and the end face of the extension body of the rod portion II (52) is configured to be connected to the built-in sports car (6), Alternatively, the electrode portion II (51) is configured as a copper tubular body and the rod portion II (52) is configured as a convex polytetrafluoroethylene insulating rod, the screw portion I (53) is configured as a hexagon socket bolt and the screw portion I (53) is configured to be spaced and distributed along the transverse center line of the electrode portion II (51), Alternatively, the first cable (9), the second cable (91) and the third cable (92) are respectively configured as power cables and one end of the first cable (9) is configured to be connected to the ground electrode (4), the other end of the first cable (9) and one end of the third cable (92) are respectively configured to be connected to the power source (2), and the other end of the third cable (92) and one end of the second cable (91) are respectively configured to be connected to the current detector (3), the other end of the second cable (91) is respectively configured to be connected to the probe electrode (5), and the second cable (91) is respectively configured to be connected in a surrounding manner to the pay-out reel assembly (7) and the storage assembly (8), and the second cable (91) is configured to be connected in a through-type manner to the built-in sports car (6).

7. The defect and disease detection device for high-water-level pipeline according to claim 5 is characterized by: The external carrier vehicle (1) is configured with a vehicle body (11), a frame part I (12), and a handle part (13). An accommodation hole body (14) is provided at the right end of the frame plate of the vehicle body (11). The outer side of the upper horizontal part on the right side of the frame part I (12) is configured to be connected to the end of the horizontal part of the handle part (13), and the upper end face of the lower horizontal part on the right side of the frame part I (12) is configured to be connected to the power supply (2). The upper end face of the upper horizontal part on the right side of the frame part I (12) and the upper end face of the vertical part of the frame part I (12) are respectively configured to be connected to the current detector (3), and the middle of the left horizontal part of the frame part I (12) and the upper end face of the frame plate of the vehicle body (11) is configured to be connected to the wire pay-off reel assembly (7). The left side of the upper end face of the frame plate of the vehicle body (11) is configured to be connected to the wire storage assembly (8), and the right side of the upper end face of the frame plate of the vehicle body (11) and the accommodation hole body (14) are respectively configured to be connected to the grounding electrode (4). Alternatively, the vehicle body (11) is configured as a moving vehicle body with casters at the lower end, the frame part I (12) is configured as a cross-shaped frame body, the handle part (13) is configured as a U-shaped rod body, and the accommodation hole body (14) is configured as a hole body. Alternatively, the built-in moving vehicle (6) is configured to include a frame part II (61), a power shaft part (62), a spiral blade part (63), a beam part I (64), a beam part II (65), a screw part II (66), a lower wheel frame part (67), an upper wheel frame part (68), a counterweight part (69), and a screw part III (60). The vertical part of the frame part II (61) is configured to be connected to the right end of the beam part I (64). The left side of the lower end face of the outer horizontal part of the beam part I (64) is configured to be connected to the upper end face of the beam part II (65), and one end of the power shaft part (62) is configured to be rotatably connected to the lower end of the vertical part of the frame part II (61). The motor housing located at one end of the power shaft part (62) is configured to be connected to the lower right side of the vertical part of the frame part II (61) through an intermediate connecting rod, and the other end of the power shaft part (62) is configured to be rotatably connected to the lower end of the beam part II (65). The peripheral side of the power shaft part (62) is configured to be connected to the spiral blade part (63), and the upper end face of the horizontal part of the frame part II (61) is configured to be threadedly connected to the screw part II (66). The outer horizontal part of the beam part I (64) is configured to be connected to the counterweight part (69) in a penetrating manner, and the outer side of the counterweight part (69) is configured to be threadedly connected to the screw part III (60). The inner end face of the screw part III (60) is configured to be in contact with the outer horizontal part of the beam part I (64), and the end of the inner horizontal part of the beam part I (64) is configured to be connected to the lower wheel frame part (67). The upper wheel frame part (68) is configured to be connected to the lower wheel frame part (67), and the lower wheel frame part (67) is configured to be connected to the probe electrode (5). The horizontal part of the frame part II (61) is configured to be connected to the second cable (91) in a sleeved manner, and the inner end face of the screw part II (66) is configured to be in contact with the second cable (91). Or, the frame part II (61) is set as a U-shaped beam body with a T-shaped hole in the horizontal part, and the vertical hole of the T-shaped hole in the frame part II (61) is set to be threadedly connected to the screw part II (66). The horizontal hole of the T-shaped hole in the frame part II (61) is set to be connected to the second cable (91), and the power shaft part (62) is set as a rod-shaped body. The beam part I (64) is set as a Z-shaped strip body, and the beam part II (65) is set as a straight strip body. The screw part II (66) and the screw part III (60) are respectively set as hexagon socket head bolts, and the counterweight part (69) is set as a block body with a T-shaped hole. The longitudinal hole of the T-shaped hole in the counterweight part (69) is set to be threadedly connected to the screw part III (60), and the horizontal hole of the T-shaped hole in the counterweight part (69) is set to be connected to the beam part I (64). Or, the lower wheel frame part (67) is set to include a frame part III (10), a spring part II (20), a rod wheel I (30), and a rod wheel II (40). The vertical parts of the frame part III (10) are respectively set to be penetrated and connected to the inner horizontal part end of the beam part I (64) and the spring part II (20). One end of the spring part II (20) is set to be in contact connection with the lower flange end of the vertical part of the frame part III (10), and the other end of the spring part II (20) is set to be in contact connection with the inner horizontal part end of the beam part I (64). One side of the lower flange end of the vertical part of the frame part III (10) is set to be connected to the rod wheel I (30), and the other side of the lower flange end of the vertical part of the frame part III (10) is set to be connected to the rod wheel II (40). The horizontal parts of the frame part III (10) are respectively set to be connected to the upper wheel frame part (68) and the probe electrode (5). Or, the frame part III (10) is set as a U-shaped beam body with a through hole in the middle of the horizontal part and a convex-shaped lower end in the vertical part, and the through hole of the part III (10) is set to be connected to the upper wheel frame part (68). The spring part II (20) is set as a columnar spring, and the rod wheel I (30) and the rod wheel II (40) are respectively set as components with a strip beam installed on the frame part III (10), a longitudinal shaft body installed on the lower end of the strip beam, and a wheel body installed on the longitudinal shaft body. Or, the upper wheel frame part (68) is set to include a rod part III (50), a spring part III (60), a rod wheel III (70), and a rod wheel IV (80). One side of the upper end face of the rod part III (50) is set to be connected to the rod wheel III (70), and the other side of the upper end face of the rod part III (50) is set to be connected to the rod wheel IV (80). The lower end of the rod part III (50) is respectively set to be penetrated and connected to the through hole of the frame part III (10) and the spring part III (60). One end of the spring part III (60) is set to be in contact connection with the lower end face of the horizontal part of the frame part III (10), and the other end of the spring part III (60) is set to be in contact connection with the lower flange end of the rod part III (50). Alternatively, the rod part III (50) is arranged as a beam-shaped body with a convex-shaped lower end, and the spring part III (60) is arranged as a column spring. The rod wheel III (70) and the rod wheel IV (80) are respectively arranged as components having a strip beam mounted on the rod part III (50), a longitudinal shaft body mounted on the upper end of the strip beam, and a wheel body mounted on the longitudinal shaft body. Alternatively, the wire pay-off reel assembly (7) is arranged to include a power source part (71), a rod part IV (72), and a rod part V (73). The end shaft of the power source part (71) is arranged to be connected to one end of the rod part IV (72). The peripheral side surface of the rod part IV (72) is arranged to be connected to the middle of the rod part V (73). The housing of the power source part (71) is arranged to be connected to the external carrier vehicle (1) through an intermediate connecting rod. The end of the rod part IV (72) is arranged to be rotatably connected to the external carrier vehicle (1). The rod part V (73) is arranged to be distributed corresponding to the wire storage assembly (8). The rod part V (73) is arranged to be connected to the second cable (91) in a receiving manner. Alternatively, the power source part (71) is arranged as a driving motor, the rod part IV (72) is arranged as a circular shaft body, the rod part V (73) is arranged as a C-shaped rod body, and the rod part V (73) is arranged to be distributed at intervals along the circumferential line of the rod part IV (72). Alternatively, the wire storage assembly (8) is arranged to include a plate part (81), a rod wheel VI (82), a rod wheel VII (83), a rod wheel VIII (84), and a rod part VI (85). The upper part of the right side surface of the plate part (81) is arranged to be connected to the rod wheel VI (82). The lower parts of the left side surface of the plate part (81) are respectively arranged to be connected to the rod wheel VII (83) and the rod wheel VIII (84). The edge of the upper end surface of the plate part (81) is arranged to be connected to the inner end surface of the rod part VI (85). The lower end surface of the plate part (81) is arranged to be connected to the external carrier vehicle (1) through an intermediate connecting rod. The rod wheel VI (82), the rod wheel VII (83), the rod wheel VIII (84), and the rod part VI (85) are respectively arranged to be in contact connection with the second cable (91). Alternatively, the plate part (81) is arranged as a U-shaped sheet body, and the plate part (81) is arranged to be distributed obliquely with respect to the external carrier vehicle (1). The rod wheel VI (82), the rod wheel VII (83), and the rod wheel VIII (84) are respectively arranged as components having a strip beam mounted on the plate part (81), a longitudinal shaft body mounted on the outer end of the strip beam, and a wheel body mounted on the longitudinal shaft body. The peripheral annular groove on the wheel body of the rod wheel VI (82) is arranged to be in a supporting connection with the second cable (91). The peripheral annular grooves on the wheel bodies of the rod wheel VII (83) and the rod wheel VIII (84) are arranged to be in a clamping connection with the second cable (91). The rod part VI (85) is arranged as a rod body. The rod part VI (85) is arranged to be distributed in a double row with respect to the plate part (81), and the rod part VI (85) is arranged to be distributed at intervals along the vertical center line of the plate part (81).

8. The device and method for detecting defects and diseases in a high-water-level pipeline according to any one of claims 1 to 7, characterized in that: The current detector (3) and the power supply (2), the ground electrode (4), the probe electrode (5), the first cable (9), the second cable (91) and the third cable (92) are arranged to be distributed in a manner of detecting current signals, and the current detector (3), the power supply (2), the ground electrode (4), the probe electrode (5), the first cable (9), the second cable (91) and the third cable (92) and the internal motion vehicle (6) are arranged to be distributed in a manner of moving within the pipe, and the current detector (3), the power supply (2), the ground electrode (4), the probe electrode (5), the first cable (9), the second cable (91) and the third cable (92) and the external carrier vehicle (1), the pay-off reel assembly (7) and the storage assembly (8) are arranged to be distributed in a manner of releasing cables. Alternatively, the plate portion (81) is configured to be connected to the vehicle body (11), the power source portion (71) is configured to be connected to the frame portion I (12), the rod portion IV (72) is configured to be connected to the vehicle body (11) and the frame portion I (12), respectively, the rod portion II (52) is configured to be connected to the frame portion III (10), the rod portion I (42) is configured to be connected to the accommodating hole body (14), and the spring portion I (43) is configured to be connected to the vehicle body (11).

9. A method for detecting defects and diseases in pipelines operating at a high water level, characterized by the following steps: The power supply (2) enables current to flow through the grounding electrode (4), the probe electrode (5) and the current detector (3); the cable group enables the power supply (2), the grounding electrode (4), the probe electrode (5) and the current detector (3) to be connected in series; the grounding electrode (4), the probe electrode (5) and the current detector (3) enable online monitoring of the current value between the high-water-level operating pipeline and the earth, and realizes the impedance change caused by the defect and disease detection of the high-water-level operating pipeline as a detection signal.

10. The defect and disease detection method based on high water level pipeline according to claim 1 is characterized in that the steps are: When it is necessary to detect defects and diseases in a high-water-level running pipeline, the built-in moving vehicle (6) is placed in the high-water-level running pipeline. Under the elastic energy storage action of the spring part II (20), the rod wheel I (30) and the rod wheel II (40) act on the lower part of the high-water-level running pipeline. Under the elastic energy storage action of the spring part III (60), the rod wheel III (70) and the rod wheel IV (80) act on the upper part of the high-water-level running pipeline. The spiral blade part (63) is placed on the lower part of the high-water-level running pipeline. The external carrying vehicle (1) is placed on the foundation outside the high-water-level running pipeline. A downward force is applied to the rod part I (42) to overcome the elastic energy storage of the spring part I (43), so that the vertical part of the rod part I (42) enters the foundation outside the high-water-level running pipeline. The pole part I (41) is in contact with the outer foundation of the high water level running pipeline, and the current detector (3), the power supply (2), the ground electrode (4) and the probe electrode (5) are connected in series through the first cable (9), the second cable (91) and the third cable (92), so that the power source part (71) and the motor located on one end of the power shaft part (62) are in working state. The power source part (71) drives the rod part IV (72) to rotate between the vehicle body (11) and the frame part I (12), so that the second cable (91) located on the rod part V (73) is in an unwinding state. The unwound second cable (91) enters the plate part (81) through the rod wheel VI (82) and performs a circular motion on the rod part VI (85). The unwound second cable (91) is transported to the built-in moving vehicle (6) through the rod wheel Ⅶ (83) and the rod wheel VIII (84). The motor located at one end of the power shaft (62) drives the spiral blade part (63) to rotate through the power shaft (62), so that the rod wheel I (30), the rod wheel II (40), the rod wheel III (70) and the rod wheel IV (80) move on the high water level running pipeline, so that the probe electrode (5) moves on the high water level running pipeline. The current measurement circuit is formed by the electrode part II (51), the electrode part I (41), the water in the pipeline and the foundation outside the pipeline of the high water level running pipeline. When the inner wall of the pipeline is intact, the impedance between the electrode part II (51) and the electrode part I (41) is very large, and the current detector (3) The measured current value is in a small value state. When there is a defect in the inner wall of the pipeline, there is a low impedance path between the electrode part II (51) and the electrode part I (41). The measured current value of the current detector (3) is in a large value state. Through the change of the measured current value of the current detector (3), the length of the vertical and horizontal cracks of the leakage point and the defect disease of the pipe mouth are judged. After completing the defect disease detection of the pipeline running at a high water level, the rod part IV (72) is driven to rotate in the opposite direction between the vehicle body (11) and the frame part I (12). The second cable (91) is transported in the opposite direction to the rod part VI (85) between the rod wheel VII (83) and the rod wheel VIII (84). The second cable (91) performs a reverse circumferential motion on the rod part VI (85) and passes through the rod wheel VI (82).The second cable (91) on the rod portion V (73) is in a reeling state, and at the same time, the motor located at one end of the power shaft portion (62) drives the spiral blade portion (63) to rotate in the opposite direction through the power shaft portion (62), so that the rod wheel I (30), the rod wheel II (40), the rod wheel III (70) and the rod wheel IV (80) move in the opposite direction on the high water level operation pipeline, and the built-in motion vehicle (6) is driven out of the high water level operation pipeline. After the built-in motion vehicle (6) is driven out of the high water level operation pipeline, the power source portion (71) and the motor located at one end of the power shaft portion (62) are in a non-working state, so that the vertical portion of the rod portion I (42) is pulled out from the pipe foundation outside the high water level operation pipeline. Under the elastic energy storage action of the spring portion I (43), the electrode portion I (41) is separated from the pipe foundation outside the high water level operation pipeline.

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