Geomembrane Leak Detection Equipment and Method

Abstract

The present invention discloses a geomembrane leakage detection device, comprising: a conductive roller which can support the geomembrane, and a plurality of conductive plates are arranged densely along its length direction and parallel to its axis directly above the conductive roller. Insulating plates are arranged between adjacent conductive plates. A plurality of copper wires are densely arranged along the length direction at the bottom of the conductive plate, and the gap between the copper wires and the conductive roller is slightly larger than the thickness of the geomembrane. The conductive plate is connected to a high-voltage power supply through a wire; a marking table which is located on one side of the conductive roller and can support the geomembrane, and a plurality of ink marking members corresponding to the positions of the respective conductive plates are arranged on the marking table. An electric telescopic rod is arranged directly above the ink marking member, and a horizontal pressing plate is arranged at the telescopic end of the electric telescopic rod; a controller which is electrically connected to the conductive roller, each conductive plate, each electric telescopic rod, and the high-voltage power supply and controls the telescopic movement of the electric telescopic rod and the on-off of the high-voltage power supply. The present invention can accurately detect the holes in the geomembrane and mark them, with high operation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, and in particular to a geomembrane leakage detection device and method. Background Art

[0002] Geomembrane has a very low permeability coefficient, good anti-seepage performance, a large application range and a long service life. It can be widely used in landfills, hazardous waste disposal and other fields. In the production process of geomembranes, holes may appear due to process influences. If the holes are not detected, it is not conducive to the realization of the integrity of the anti-seepage system and has a great impact on the anti-seepage effect of the project. Therefore, it is urgent to design a device that can effectively detect geomembrane damage and holes. Summary of the invention

[0003] The present invention provides a geomembrane leakage detection device, which forms a breakdown circuit connected to a controller at the geomembrane leak, so that the controller sends a control signal to control the electric telescopic rod corresponding to the leak position to drive the buckling plate to extend and work with the marking table to clamp and mark the geomembrane leak, thereby achieving the purpose of detecting and marking the geomembrane leak.

[0004] In order to achieve these purposes and other advantages according to the present invention, a geomembrane leakage detection device is provided, comprising:

[0005] A conductive roller, which can support the geomembrane, is provided with a plurality of conductive plates densely arranged along the length direction of the conductive roller and parallel to the axis thereof, an insulating plate is provided between adjacent conductive plates, a plurality of copper wires are densely arranged along the length direction of the bottom of the conductive plate, the gap between the copper wires and the conductive roller is slightly larger than the thickness of the geomembrane, and the conductive plate is connected to a high-voltage power supply through a wire;

[0006] A marking platform, which is located on one side of the conductive roller and can support the geomembrane, and is provided with a plurality of ink marking pieces corresponding to the positions of the conductive plates on the marking platform, and an electric telescopic rod is provided just above the ink marking piece, and a horizontal buckling plate is provided at the telescopic end of the electric telescopic rod;

[0007] A controller is electrically connected to the conductive roller, each conductive plate, each electric telescopic rod, and the high-voltage power supply, and controls the extension and retraction of the electric telescopic rod and the switching on and off of the high-voltage power supply.

[0008] Preferably, in the geomembrane leakage detection device, the marking table is a rectangular box body, and a plurality of vertical partitions are arranged inside it to divide it into a plurality of accommodation chambers. Vertical support columns are arranged between the top wall and the bottom wall of the accommodation chamber. An annular moving hole is arranged on the top wall of the accommodation chamber, and the ink marking member is movably inserted in the moving hole. A plurality of first springs are arranged between the bottom of the ink marking member and the bottom wall of the accommodation chamber, and ink is arranged in the accommodation chamber.

[0009] Preferably, in the geomembrane leakage detection device, an ink filling hole is arranged on the top wall of one of the accommodation chambers, and an elastic plug is arranged at the ink filling hole.

[0010] Preferably, in the geomembrane leakage detection device, the ink marking member is an annular ink plate. An annular groove is arranged on the bottom wall inside the accommodation chamber. The first springs and the ink marking member are located between the annular groove and the side wall of the accommodation chamber. A second communication hole is arranged at the bottom of the side wall of the annular groove.

[0011] Preferably, in the geomembrane leakage detection device, it further includes: a support frame, which includes:

[0012] A pair of vertical first support plates located on one side of the conductive roller. A first upper support roller and a first lower support roller parallel to the axis of the conductive roller are rotatably arranged thereon from top to bottom. The first lower support roller, the conductive roller, and the marking table are at the same height;

[0013] A pair of vertical second support plates located on the other side of the conductive roller. A second upper support roller and a unwind roller parallel to the axis of the conductive roller are rotatably arranged thereon from top to bottom;

[0014] A horizontal support plate, which is located between the first upper support roller and the second upper support roller and the three are at the same height. The bottom of the support plate is connected to the first support plate and the second support plate through support rods. A vertical telescopic cylinder is arranged at the bottom of the support plate. A horizontal connecting plate is arranged at the telescopic end of the telescopic cylinder. A vertical hanging plate and the electric telescopic rod are arranged at the bottom of the connecting plate. A support member is detachably arranged on the hanging plate, and the conductive plate is detachably arranged on the support member;

[0015] A pair of vertical third support plates located on one side of the first lower support roller. A third upper support roller and a guide roller parallel to the axis of the conductive roller are rotatably arranged thereon from top to bottom;

[0016] A pair of vertical fourth support plates located on the other side of the unwind roller. A winding roller parallel to the unwind roller is rotatably arranged thereon.

[0017] Preferably, in the geomembrane leakage detection device, an inclined insertion plate is arranged outside the support member, a hanging hole is arranged on the hanging plate, and the insertion plate is inserted into the hanging hole.

[0018] Preferably, in the geomembrane leakage detection device, a vertical connection hole is arranged on the support member, a conductive plate is inserted into the connection hole, a limiting block is arranged at the top of the conductive plate, the width of the limiting block is greater than the width of the connection hole, and the insulating plate is located in the connection hole and connected to the support member.

[0019] Preferably, in the geomembrane leakage detection device, it further includes: a climbing frame, which is provided with a horizontal standing plate located directly above the supporting plate and slightly higher than the supporting plate, a climbing ladder leading to the standing plate is arranged on the side of the climbing frame, and the controller is arranged near the standing plate on the climbing frame.

[0020] Preferably, in the geomembrane leakage detection device, it further includes: a pair of vertical fifth support plates, which are located between the first lower support roller and the guide roller, a vertical limiting slideway is arranged on the second support plate, a slider is movably arranged on the limiting slideway, a lifting roller parallel to the first upper support roller is rotatably arranged on a pair of sliders, the lifting roller is located above the geomembrane, and an infrared sensor is arranged at the bottom of the fifth support plate near the limiting slideway, and the infrared sensor is communicatively connected to the controller.

[0021] The present invention also provides a geomembrane leakage detection method for detecting the leakage condition of a geomembrane by using the geomembrane leakage detection device described in any one of the above technical solutions, which specifically includes the following steps: passing the geomembrane to be detected through the gaps between the conductive rollers and the copper wires and between the marking table and the buckling plate in sequence, then connecting each conductive plate to a high-voltage power supply, and moving the geomembrane at a preset speed. When a hole on the geomembrane passes between the conductive roller and the copper wire, electrical contact occurs between the conductive plate corresponding to the hole and the conductive roller, the controller receives the power-on signal, issues a control command, controls the electric telescopic rod corresponding to the hole to extend, so that the buckling plate moves downward, and at the same time the geomembrane continues to move. When the hole moves directly above the ink marking member, the ink marking member and its corresponding buckling plate clamp the geomembrane, instantly mark the hole, and then the electric telescopic rod rises to release the geomembrane.

[0022] The present invention has at least the following beneficial effects: The present invention uses a conductive roller, a conductive plate, a copper wire, and a controller to detect whether there are holes in the geomembrane. After the conductive plate is connected to a high-voltage power supply, at the position of the hole, an air gap breakdown will occur between the copper wire and the conductive roller, forming an electrical path, enabling the controller to receive an energization signal. The controller controls the electric telescopic rod corresponding to the hole position to extend and drive the clamping plate to move downward to jointly clamp and mark the geomembrane with the marking table, calibrating the hole position, being able to efficiently and accurately detect the holes in the geomembrane and mark them, facilitating subsequent repair of the holes in the geomembrane to ensure the integrity of the geomembrane and its anti-seepage effect during subsequent use.

[0023] Other advantages, objectives, and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view structural schematic diagram of the geomembrane leakage detection device in one technical solution of the present invention;

[0025] Figure 2 It is a side view structural schematic diagram of the geomembrane leakage detection device in one technical solution of the present invention;

[0026] Figure 3 It is an internal structural schematic diagram of the marking table in one technical solution of the present invention;

[0027] Among them, 1 - winding roller, 2 - fourth support plate, 3 - unwinding roller, 4 - second support plate, 5 - climbing ladder, 6 - climbing frame, 7 - limiting block, 8 - support member, 9 - conductive roller, 10 - hanging plate, 11 - marking table, 12 - clamping plate, 13 - electric telescopic rod, 14 - first support plate, 15 - first lower support roller, 16 - fifth support plate, 17 - infrared sensor, 18 - third support plate, 19 - guiding roller, 20 - third upper support roller, 21 - slider, 22 - lifting roller, 23 - first upper support roller, 24 - telescopic cylinder, 25 - connecting plate, 26 - controller, 27 - standing plate, 28 - supporting plate, 29 - support rod, 30 - second upper support roller, 31 - blower, 32 - geomembrane, 33 - copper wire, 34 - sealing plug, 35 - ink filling hole, 36 - support column, 37 - second communication hole, 38 - annular groove, 39 - first spring, 40 - ink marking member, 41 - limiting slideway. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following further elaborates on the present invention in conjunction with the drawings, enabling those skilled in the art to implement it with reference to the description in the specification.

[0029] It should be understood that terms such as "having", "comprising", and "including" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0030] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials, unless otherwise specified, can all be obtained through commercial channels; in the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "arranged" should be understood in a broad sense. For example, they can be fixedly connected and arranged, or detachably connected and arranged, or integrally connected and arranged. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The orientation or positional relationship indicated by terms such as "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0031] As Figure 1 、 Figure 2 、 Figure 3 As shown, the present invention provides a geomembrane leakage detection device, including:

[0032] A conductive roller 9, which can support the geomembrane 32. A plurality of conductive plates are arranged densely along its length direction and parallel to its axis directly above the conductive roller 9. Insulating plates are arranged between adjacent conductive plates. A plurality of copper wires 33 are densely arranged along the length direction at the bottom of the conductive plate. The gap between the copper wires 33 and the conductive roller 9 is slightly larger than the thickness of the geomembrane 32. The conductive plate is connected to a high-voltage power supply through a wire;

[0033] A marking table 11, which is located on one side of the conductive roller 9 and can support the geomembrane 32. A plurality of ink marking members 40 corresponding to the positions of the respective conductive plates are arranged on the marking table 11. An electric telescopic rod 13 is arranged directly above the ink marking member 40. A horizontal pressing plate 12 is arranged at the telescopic end of the electric telescopic rod 13;

[0034] A controller 26, which is electrically connected to the conductive roller 9, each of the conductive plates, each of the electric telescopic rods 13, and the high-voltage power supply and controls the telescopic movement of the electric telescopic rod 13 and the on / off of the high-voltage power supply.

[0035] The geomembrane leakage detection device provided by this technical solution mainly includes a conductive roller 9, a marking table 11 located on one side of the conductive roller 9, and a controller 26. The conductive roller 9 and the marking table 11 can support the moving geomembrane 32. Above the conductive roller 9, a plurality of conductive plates are densely arranged along its length direction. Each conductive plate is parallel to the axis of the conductive roller 9. An insulating plate is arranged between adjacent two conductive plates. The insulating plate can be a plastic thin plate to prevent electric leakage between adjacent two conductive plates. Along the length direction of the bottom of the conductive plate, a plurality of copper wires 33 are densely arranged. The dense copper wires 33 form a copper brush structure to fully cover the geomembrane 32. The gap between the copper wires 33 and the conductive roller 9 is slightly larger than the thickness of the geomembrane 32 and smaller than the maximum breakdown gap between the copper wires 33 and the conductive roller 9. Each conductive plate is respectively connected to a high-voltage power supply through a lead. The high-voltage power supply provides a breakdown voltage for the conductive plate, the copper wires 33, and the conductive roller 9. On the marking table 11, a plurality of ink marking members 40 are arranged. Each ink marking member 40 corresponds to the position of each conductive plate one by one. Above the ink marking member 40, a vertical electric telescopic rod 13 is arranged. At the bottom telescopic end of the electric telescopic rod 13, a horizontal pressing plate 12 is arranged. When the electric telescopic rod 13 extends, it drives the pressing plate 12 to move downwards to dock with the corresponding ink marking member 40 and squeeze the geomembrane 32 on the ink marking member 40, so that the ink marking member 40 can mark the geomembrane 32. The controller 26 is electrically connected to the conductive roller 9, each conductive plate, each electric telescopic rod 13, and the high-voltage power supply, and controls the telescopic movement of the electric telescopic rod 13 and the on-off of the high-voltage power supply. The conductive roller 9 can be an iron rod or an aluminum roller, and the conductive plate can be an aluminum plate or an iron plate.

[0036] The using method of the geomembrane leakage detection device provided by this technical solution is as follows: When detecting the holes in the geomembrane 32, first pass the geomembrane 32 to be detected through the gaps between the conductive roller 9 and the copper wires 33 in sequence, and through the gap between the marking table 11 and the pressing plate 12. Then connect each conductive plate to the high-voltage power supply and move the geomembrane 32 at a preset speed. When the hole on the geomembrane 32 passes between the conductive roller 9 and the copper wires 33, electrical contact occurs between the conductive plate corresponding to the hole and the conductive roller 9. The controller 26 receives the power-on signal and issues a control command to control the corresponding electric telescopic rod 13 of the hole to extend, so that the pressing plate 12 moves downwards. At the same time, the geomembrane 32 continues to move. When the hole moves to directly above the ink marking member 40, the ink marking member 40 and its corresponding pressing plate 12 clamp the geomembrane 32 and instantly mark the hole. Then the electric telescopic rod 13 rises to release the geomembrane 32, and repeat the above steps to detect the next hole.

[0037] The present invention has at least the following beneficial effects: The present invention detects whether there are holes in the geomembrane 32 through the conductive roller 9, the conductive plate, the copper wire 33, and the controller 26. After the conductive plate is connected to the high-voltage power supply, at the position of the hole, an air gap breakdown will occur between the copper wire 33 and the conductive roller 9, forming an electrical path, so that the controller 26 receives an energization signal. The controller 26 controls the electric telescopic rod 13 corresponding to the hole position to extend and drive the clamping plate 12 to move downward to jointly clamp and mark the geomembrane 32 with the marking table 11, calibrating the hole position, and can efficiently detect the holes in the geomembrane 32 and mark them, facilitating subsequent repair of the holes in the geomembrane 32 to ensure the integrity of the geomembrane 32 and its anti-seepage effect during subsequent use; A plurality of ink marking members 40 are provided, and each ink marking member 40 is correspondingly provided with a separately liftable clamping plate 12, reducing the marking range and facilitating more accurate positioning of the hole position.

[0038] In another technical solution, as Figure 1 , Figure 2 , Figure 3 shown, in the geomembrane leakage detection device, the marking table 11 is a cuboid box body, and a plurality of vertical partition plates are arranged inside it to divide it into a plurality of accommodation chambers. Vertical support columns 36 are arranged between the top wall and the bottom wall of the accommodation chamber. An annular moving hole is arranged on the top wall of the accommodation chamber, and the ink marking member 40 is movably inserted in the moving hole. A plurality of first springs 39 are arranged between the bottom of the ink marking member 40 and the bottom wall of the accommodation chamber, and ink is arranged in the accommodation chamber. The annular moving hole is close to the edge of the top wall, so that the ink marking member 40 slides along the side wall of the accommodation chamber, and the movement is more stable; when the electric telescopic rod 13 drives the clamping plate 12 to move downward and dock with the ink marking member 40 and move downward, the first spring 39 pushes the ink marking member 40 and the clamping plate 12 to jointly clamp the geomembrane 32 for marking; The ink marking member 40 is made of materials such as wood, plastic, and nylon, and has the same properties as the tip of a marker pen, and can continuously absorb the ink in the accommodation chamber.

[0039] In another technical solution, as Figure 3 shown, in the geomembrane leakage detection device, an ink filling hole 35 is arranged on the top wall of one of the accommodation chambers, and an elastic plug 34 is arranged at the ink filling hole 35. Plugging and unplugging the plug 34 can block or open the ink filling hole 35 to facilitate adding ink to the marking table 11.

[0040] In another technical solution, in the geomembrane leakage detection device, a first communication hole is arranged at the bottom of the partition plate. Facilitate the flow of ink in each accommodation chamber.

[0041] In another technical solution, as Figure 3As shown, in the geomembrane leakage detection device, the ink marking member 40 is an annular ink plate. An annular groove 38 is provided on the bottom wall of the accommodation chamber. The first spring 39 and the ink marking member 40 are located between the annular groove 38 and the side wall of the accommodation chamber. A second communication hole 37 is provided at the bottom of the side wall of the annular groove 38. The annular groove 38 and the side wall of the accommodation chamber limit the ink marking member 40 and the first spring 39 to prevent the first spring 39 from moving randomly; the second communication hole 37 facilitates the flow of ink between the annular groove 38 and the gap between the annular groove 38 and the side wall of the accommodation chamber.

[0042] In another technical solution, as Figure 1 , Figure 2 shown, in the geomembrane leakage detection device, it further includes: a support frame, which includes:

[0043] A pair of vertical first support plates 14 located on one side of the conductive roller 9, on which a first upper support roller 23 and a first lower support roller 15 parallel to the axis of the conductive roller 9 are rotatably arranged from top to bottom. The first lower support roller 15, the conductive roller 9, and the marking table 11 are at the same height;

[0044] A pair of vertical second support plates 4 located on the other side of the conductive roller 9, on which a second upper support roller 30 and a unwind roller 3 parallel to the axis of the conductive roller 9 are rotatably arranged from top to bottom.

[0045] A horizontal support plate 28, which is located between the first upper support roller 23 and the second upper support roller 30 and the three are at the same height. The bottom of the support plate 28 is connected to the first support plate 14 and the second support plate 4 through support rods 29. A vertical telescopic cylinder 24 is provided at the bottom of the support plate 28. The telescopic end of the telescopic cylinder 24 is provided with a horizontal connecting plate 25. A vertical hanging plate 10 and the electric telescopic rod 13 are provided at the bottom of the connecting plate 25. A support member 8 is detachably provided on the hanging plate 10, and the conductive plate is detachably provided on the support member 8;

[0046] A pair of vertical third support plates 18 located on one side of the first lower support roller 15, on which a third upper support roller 20 and a guide roller 19 parallel to the axis of the conductive roller 9 are rotatably arranged from top to bottom.

[0047] A pair of vertical fourth support plates 2 located on the other side of the unwind roller 3, on which a winding roller 1 parallel to the unwind roller 3 is rotatably arranged.

[0048] The unwinding roller 3 is used to wind and unwind the geomembrane 32 to be detected, and the winding roller 1 is used to wind the detected geomembrane 32. One end of the unwinding roller 3 can be connected to the output end of the first motor and driven to rotate by the first motor. One end of the winding roller 1 can be connected to the output end of the second motor and driven to rotate by the second motor. The controller 26 is communicatively connected to both the first motor and the second motor to control the operation of the first motor and the second motor. When detecting holes in the geomembrane 32, the geomembrane 32 on the unwinding roller 3 starts from the end of the unwinding roller 3 and sequentially passes above the conductive roller 9, above the marking table 11, above the first lower support roller 15, below the guide roller 19, above the third upper support roller 20, above the first upper support roller 23, above the support plate 28, and above the second upper support roller 30, and then extends downward to the winding roller 1 and is wound by the winding roller 1. After being flipped by the guide roller 19 and the third upper support roller 20, the hole marks originally located below the geomembrane 32 become located above or on the outer side of the geomembrane 32, facilitating the inspection and repair of the holes. The telescopic cylinder 24 can directly or indirectly drive the lifting of the connecting plate 25, the hanging plate 10, the electric telescopic rod 13, the support member 8, and the conductive plate, thereby adjusting the gap distance between the copper wire 33 and the conductive roller 9 and between the clamping plate 12 and the marking table 11, so as to facilitate the adjustment of the geomembrane 32 at this gap. A conductive plate is detachably arranged on the support member 8, facilitating the individual inspection and replacement of each conductive plate. The support member 8 is detachably arranged on the hanging plate 10, facilitating the overall disassembly of the conductive plate.

[0049] In another technical solution, in the geomembrane leakage detection device, an inclined insertion plate is arranged outside the support member, and a hanging hole is arranged on the hanging plate, and the insertion plate is inserted into the hanging hole. Inserting and pulling out the insertion plate from the hanging hole can connect or separate the support member and the hanging plate, and the disassembly and assembly are convenient.

[0050] In another technical solution, as Figure 1 、 Figure 2 shown, in the geomembrane leakage detection device, a vertical connecting hole is arranged on the support member 8, and the conductive plate is inserted into the connecting hole. A limiting block 7 is arranged at the top of the conductive plate, and the width of the limiting block 7 is greater than the width of the connecting hole. The insulating plate is located in the connecting hole and is connected to the support member 8. Multiple insulating plates divide the connecting hole into multiple sections, and one conductive plate is correspondingly inserted into each section of the connecting hole, so that the support member 8 supports each conductive plate and does not cause the series connection and electric leakage of each conductive plate; the limiting block 7 prevents the conductive plate from sliding down from below the connecting hole.

[0051] In another technical solution, as Figure 1 、 Figure 2As shown, in the geomembrane leakage detection device, it further includes: a climbing frame 6, which is provided with a horizontal standing plate 27 located directly above the supporting plate 28 and slightly higher than the supporting plate 28. A climbing ladder 5 leading to the standing plate 27 is arranged on the side of the climbing frame 6, and the controller 26 is arranged near the standing plate 27 on the climbing frame 6. After passing over the guiding roller 19 and the third upper supporting roller 20, the hole marks originally printed by the ink marking member 40 under the geomembrane 32 become located above the geomembrane 32 and are displayed on the supporting plate 28. The staff climbs to the standing plate 27 through the climbing ladder 5 to repair the holes of the marked geomembrane 32 passing by below; the controller 26 is close to the standing plate 27, which is convenient for the staff standing on the standing plate 27 to operate the controller 26 and control the operation of the device.

[0052] In another technical solution, as Figure 1 , Figure 2 shown, in the geomembrane leakage detection device, it further includes: a pair of vertical fifth supporting plates 16, which are located between the first lower supporting roller 15 and the guiding roller 19. A vertical limiting slideway 41 is arranged on the second supporting plate 4, and a slide block 21 is movably arranged on the limiting slideway 41. A lifting roller 22 parallel to the first upper supporting roller 23 is rotatably arranged on a pair of slide blocks 21. The lifting roller 22 is located above the geomembrane 32. An infrared sensor 17 is arranged at the bottom of the fifth supporting plate 16 close to the limiting slideway 41, and the infrared sensor 17 is communicatively connected to the controller 26.

[0053] After the geomembrane 32 passes over the third upper supporting roller 20 and then passes under the lifting roller 22 and extends to above the supporting plate 28, when the geomembrane 32 is wrinkled and loose, the lifting roller 22 presses the geomembrane 32 below it to move downwards to ensure the flatness of the geomembrane 32; when the downward movement of the lifting roller 22 drives the slide block 21 to move downwards to the lowest position of the limiting slideway 41, the infrared ray emitted by the infrared sensor 17 corresponds to the lifting roller 22. At this time, the infrared sensor 17 sends an induction signal to the controller 26, and the controller 26 then sends a control signal to control the device to stop running, preventing the geomembrane 32 from being too loose and affecting the staff's repair of the holes and the normal operation of the device, and improving safety.

[0054] In another technical solution, as Figure 1 , Figure 2 shown, in the geomembrane leakage detection device, a limiting slot for the geomembrane 32 to pass through is arranged on the supporting plate 28 near the first upper supporting roller 23. This prevents the geomembrane 32 from being bent and uneven, and also prevents the position of the geomembrane 32 from shifting.

[0055] In another technical solution, as Figure 1 , Figure 2As shown in the figure, in the geomembrane leakage detection device, a pair of second support plates 4 are also provided with a blower 31 that blows air towards the geomembrane 32. This speeds up the air flow and accelerates the drying of the repair glue at the leak point.

[0056] The present invention also provides a geomembrane leakage detection method for detecting the leakage condition of a geomembrane using the geomembrane leakage detection device described in any of the above technical solutions. The method specifically includes the following steps:

[0057] The geomembrane 32 to be detected is successively passed through the gaps between the conductive rollers 9 and the copper wires 33, and the gap between the marking table 11 and the buckling plate 12. Then, each conductive plate is connected to a high-voltage power supply, and the geomembrane 32 is moved at a preset speed. When a leak on the geomembrane 32 passes between the conductive roller 9 and the copper wire 33, electrical contact occurs between the conductive plate corresponding to the leak and the conductive roller 9. The controller 26 receives the power-on signal and issues a control command to control the electric telescopic rod 13 corresponding to the leak to extend, causing the buckling plate 12 to move downward. At the same time, the geomembrane 32 continues to move. When the leak moves directly above the ink marking member 40, the ink marking member 40 and its corresponding buckling plate 12 clamp the geomembrane 32, instantaneously marking the leak point. Then, the electric telescopic rod 13 rises to release the geomembrane 32.

[0058] The following embodiments are provided according to the geomembrane leakage detection device and the geomembrane leakage detection method of the present invention:

[0059] A geomembrane 32 leakage detection method includes the following steps:

[0060] Rotate the unwinding roller 3. At the same time, one end of the geomembrane 32 wound on the unwinding roller 3 is successively passed through the gaps between the conductive rollers 9 and the copper wires 33, the gap between the marking table 11 and the buckling plate 12, above the first lower support roller 15, below the guide roller 19, above the third upper support roller 20, below the lifting roller 22, above the first upper support roller 23, above the supporting plate 28, and above the second upper support roller 30, and then extends downward to the winding roller 1 and is connected to the winding roller 1. Then, rotate the winding roller 1 to wind the geomembrane 32, and the geomembrane 32 moves continuously;

[0061] When the geomembrane 32 passes through the gaps between the conductive rollers 9 and the copper wires 33, each conductive plate is connected to a high-voltage power supply;

[0062] When the hole on the geomembrane 32 passes between the conductive roller 9 and the copper wire 33, electrical contact occurs between the conductive plate corresponding to the hole and the conductive roller 9. The controller 26 receives the power-on signal and issues a control command to control the electric telescopic rod 13 corresponding to the hole to extend, causing the clamping plate 12 to move downward. When the hole moves directly above the ink marking member 40, the ink marking member 40 and its corresponding clamping plate 12 clamp the geomembrane 32, instantly marking the hole, and then the electric telescopic rod 13 rises to release the geomembrane 32; repeat this step to continuously detect and mark holes in each section of the geomembrane 32;

[0063] When the hole mark is located on the supporting plate 28, the winding roller 1 stops rotating, and the staff on the standing plate 27 can repair the hole. At the same time, the lifting roller 22 moves downward. If the lifting roller 22 moves to the lowest position of the limit slideway 41 and the hole on the supporting plate 28 is still not repaired, the infrared sensor 17 sends an induction signal to the controller 26, and the controller 26 then issues a control signal to control the equipment to stop running. After the hole in the geomembrane 32 on the supporting plate 28 is repaired, the winding roller 1 rotates until the lifting roller 22 rises to the highest position of the limit slideway 41, and then the unwinding roller 3 starts to rotate, and the equipment continues to run;

[0064] Repeat the above steps to detect and repair holes in the geomembrane 32.

[0065] The number of devices and the processing scale described here are used to simplify the description of the present invention. Applications, modifications, and variations of the present invention will be apparent to those skilled in the art.

[0066] Although the embodiments of the present invention have been disclosed above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to specific details and the illustrations shown and described here.

Claims

1. Geomembrane leakage detection equipment, characterized in that, Comprising: A conductive roller which can support a geomembrane. Above the conductive roller, there are multiple conductive plates densely arranged along its length direction and parallel to its axis. An insulating plate is arranged between adjacent conductive plates. Along the length direction of the bottom of the conductive plate, multiple copper wires are densely arranged. The gap between the copper wires and the conductive roller is slightly larger than the thickness of the geomembrane. The conductive plate is connected to a high-voltage power supply through a wire; A marking table which is located on one side of the conductive roller and can support the geomembrane. On the marking table, there are multiple ink marking members corresponding to the positions of the respective conductive plates. Above the ink marking member, there is an electric telescopic rod, and the telescopic end of the electric telescopic rod is provided with a horizontal pressing plate; A controller which is electrically connected to the conductive roller, each of the conductive plates, each of the electric telescopic rods, and the high-voltage power supply and controls the telescopic movement of the electric telescopic rod and the on / off of the high-voltage power supply; The marking table is a cuboid box body. Inside it, there are multiple vertical partition plates dividing it into multiple accommodation chambers. Between the top wall and the bottom wall of the accommodation chamber, there are vertical support columns. On the top wall of the accommodation chamber, there is an annular moving hole, and the ink marking member is movably inserted in the moving hole. Between the bottom of the ink marking member and the bottom wall of the accommodation chamber, there are multiple first springs. Ink is arranged in the accommodation chamber; The ink marking member is an annular ink plate. On the bottom wall inside the accommodation chamber, there is an annular groove. The first springs and the ink marking member are located between the annular groove and the side wall of the accommodation chamber. At the bottom of the side wall of the annular groove, there is a second communication hole.

2. The geomembrane leakage detection device according to claim 1, characterized in that, On the top wall of one of the accommodation chambers, there is an ink filling hole, and an elastic plug is arranged at the ink filling hole.

3. The geomembrane leakage detection device according to claim 1, characterized in that, Also comprising: A support frame which includes: A pair of vertical first support plates on one side of the conductive roller. From top to bottom, a first upper support roller and a first lower support roller parallel to the axis of the conductive roller are rotatably arranged. The first lower support roller, the conductive roller, and the marking table are at the same height; A pair of vertical second support plates on the other side of the conductive roller. From top to bottom, a second upper support roller and a pay-off roller parallel to the axis of the conductive roller are rotatably arranged; A horizontal supporting plate which is located between the first upper support roller and the second upper support roller and the three are at the same height. The bottom of the supporting plate is connected to the first support plate and the second support plate through support rods. At the bottom of the supporting plate, there is a vertical telescopic cylinder. The telescopic end of the telescopic cylinder is provided with a horizontal connecting plate. At the bottom of the connecting plate, there is a vertical hanging plate and the electric telescopic rod. A support member is detachably arranged on the hanging plate, and the conductive plate is detachably arranged on the support member; A pair of vertical third support plates on one side of the first lower support roller. From top to bottom, a third upper support roller and a guiding roller parallel to the axis of the conductive roller are rotatably arranged; A pair of vertical fourth support plates on the other side of the pay-off roller. A winding roller parallel to the pay-off roller is rotatably arranged on it.

4. The geomembrane leakage detection device according to claim 3, characterized in that, An inclined insertion plate is arranged outside the support member, and a hanging hole is arranged on the hanging plate. The insertion plate is inserted into the hanging hole.

5. The geomembrane leakage detection device according to claim 3, characterized in that, A vertical connection hole is provided on the support member, and the conductive plate is inserted into the connection hole. A limit block is provided at the top of the conductive plate, and the width of the limit block is greater than the width of the connection hole. The insulating plate is located in the connection hole and is connected to the support member.

6. The geomembrane leakage detection device according to claim 3, wherein, Further included are: A climbing frame, which is provided with a horizontal standing plate located directly above the supporting plate and slightly higher in position than the supporting plate. A climbing ladder leading to the standing plate is provided on the side of the climbing frame, and the controller is provided near the standing plate on the climbing frame.

7. The geomembrane leakage detection device according to claim 3, characterized in that, Further included are: A pair of vertical fifth support plates, which are located between the first lower support roller and the guide roller. A vertical limit slideway is provided on the second support plate, and a slider is movably arranged on the limit slideway. A lifting roller parallel to the first upper support roller is rotatably arranged on a pair of sliders. The lifting roller is located above the geomembrane. An infrared sensor is provided at the bottom of the fifth support plate near the limit slideway, and the infrared sensor is communicatively connected to the controller.

8. Method for detecting leakage of geomembrane, characterized in that, Using the geomembrane leakage detection device according to any one of claims 1 to 7 to detect the leakage situation of the geomembrane, specifically including the following steps: Pass the geomembrane to be detected through the gaps between the conductive rollers and the copper wires and the gaps between the marking table and the buckling plates in sequence. Then, connect each conductive plate to a high-voltage power supply and move the geomembrane at a preset speed. When the hole on the geomembrane passes between the conductive roller and the copper wire, electrical contact occurs between the conductive plate corresponding to the hole and the conductive roller. The controller receives the power-on signal and issues a control command to control the electric telescopic rod corresponding to the hole to extend, so that the buckling plate moves downward. At the same time, the geomembrane continues to move. When the hole moves directly above the ink marking member, the ink marking member and its corresponding buckling plate clamp the geomembrane, and instantly mark the hole. Then, the electric telescopic rod rises to release the geomembrane.

Images