Water conservancy pipeline leakage detection device

Abstract

The invention relates to a water conservancy pipeline leakage detection device applied to the related technical field of sealing detection, when water seepage occurs, a water-receiving outer sealing ring can gradually adsorb seeping water, two wires are conducted under the effect of water conductivity, then a circuit is powered on, an inner movable rod is gradually bent, stress data is generated, and the water conservancy pipeline leakage detection device is used for detecting the leakage of the water conservancy pipeline. The signal can be fed back to a monitoring center, then water seepage detection of remote monitoring on a pipeline connector is achieved, a worker can obtain an abnormal signal in time and conduct targeted overhaul, and compared with the prior art, dependence on manpower is greatly reduced, the timeliness that a leakage point is found is greatly improved, and the influence on water transportation is reduced; meanwhile, in cooperation with the arrangement of the inner water receiving unit, when water seepage occurs, the inner water receiving unit can be synchronously started, so that the contact between the sealing layer and the pipeline and the contact between the sealing layer and the end of the pipe joint are tighter, the sealing performance is compensated, and then water seepage is effectively restrained.

Description

Technical Field

[0001] A water conservancy pipeline leakage detection device involved in the present invention, especially a water conservancy pipeline leakage detection device applied to the related technical field of seal detection. Background Art

[0002] The pipelines of water conservancy projects are widely used in various environments for transporting, distributing or discharging water resources. They are mainly used in water supply and drainage systems, irrigation systems, hydropower generation systems, etc.

[0003] After long-term operation, water conservancy pipelines may leak due to aging, corrosion, external force damage, water pressure fluctuations, etc. In particular, leakage is likely to occur at the pipeline joints. Regarding the sealing performance of pipeline joints, generally, water leakage detection is carried out before leaving the factory. For example, a pipeline water leakage detection device disclosed in the Chinese patent specification with the publication number CN113933003B can be put into use after confirming good sealing effect. However, when it is put into use, generally only a fixed maintenance period is set according to the service life of the pipeline, historical maintenance records and regional climate conditions, such as once a year, once a quarter or once a month for detection.

[0004] However, regular water leakage detection relies on manual labor, and it is difficult to detect water leakage in time. Moreover, due to the wide distribution of pipelines and numerous detection points, partial missed detections are likely to occur during the inspection process, resulting in the pipeline transporting water in an abnormal state for a long time. To solve this problem, there are also devices for simple leakage detection reminders at the pipe orifice, such as a drainage pipeline anti-leakage warning device based on urban construction disclosed in the Chinese patent specification with the publication number CN114777028A. However, this detection reminder method still remains offline. For water conservancy pipelines with a wide distribution range, after the reminder of abnormal leakage occurs, it still requires manual observation of the reminder phenomenon to carry out certain processing, so that although the water leakage is warned, it cannot be processed in time. Summary of the Invention

[0005] Aiming at the above-mentioned prior art, the technical problem to be solved by the present invention is that water leakage detection relies on manual labor and missed detections are likely to occur.

[0006] To solve the above problems, the present invention provides a water conservancy pipeline leakage detection device, which includes a monitoring center, two outer ring sleeves, and two water-receiving outer sealing rings respectively sleeved on the pipe orifices on both sides of the pipeline joint. The two outer ring sleeves are clamped outside the pipeline joint, and are fixedly connected by a plurality of bolts. At the upper end of the upper outer ring sleeve, two bearing plates are fixedly connected. At one end of the two bearing plates close to each other, an outer electromagnetic plate is fixedly connected. An outer water-receiving moving rod is fixedly connected between the two outer electromagnetic plates. A detection circuit is also fixedly installed inside the bearing plate. The two outer electromagnetic plates are respectively connected in series to the corresponding detection circuits. At the upper ends of the two bearing plates, a lead unit is fixedly connected. The lead unit includes an outer sheath fixedly connected to the upper end of the bearing plate and two wires connected in series to the detection circuit. The outer sheath fixedly penetrates the outer ring sleeve and extends into the outer ring sleeve. The two wires pass through the outer sheath and extend outside the outer sheath. One wire is wound around the outer surface of the water-receiving outer sealing ring in a ring shape, and the other wire fixedly penetrates the water-receiving outer sealing ring and is wound around the inner wall of the water-receiving outer sealing ring.

[0007] In the above water conservancy pipeline leakage detection device, remote monitoring of water seepage detection at the pipeline interface can be realized. Workers can timely obtain abnormal signals and perform targeted repairs. Compared with the prior art, the dependence on manual labor is greatly reduced, and the timeliness of detecting leakage points is greatly improved, reducing the impact on water transportation.

[0008] As a further improvement of the present application, the water-receiving outer sealing ring includes two sealing layers and a water-absorbing layer fixedly embedded between the two sealing layers. Both wires correspond to the water-absorbing layer.

[0009] As a further improvement of the present application, the sealing layer is made of an elastic material, the water-absorbing layer is made of a hard water-absorbing material, and the two sealing layers respectively abut against the outer ring sleeve and the outer end of the pipe joint.

[0010] As a further improvement of the present application, the outer water-receiving moving rod includes an outer transparent hard tube fixedly connected between the two outer electromagnetic plates and an inner moving rod placed inside the outer transparent hard tube. Two limiting rings are fixedly connected to the inner wall of the outer transparent hard tube. The inner moving rod is located between the two limiting rings and is in contact with both limiting rings at the same time.

[0011] As a further improvement of the present application, the inner moving rod includes two magnetically actuated blocks, a sensing rod fixedly connected to one end of the two magnetically actuated blocks close to each other, and a pressure sensor installed between the two sensing rods. The pressure sensor is signal-connected to the monitoring center. Both sensing rods are made of an elastic material. The magnetically actuated blocks and the pressure sensor are both matched with the inner wall of the outer transparent hard tube. After being energized, the outer electromagnetic plate generates a magnetic repulsive force on the corresponding magnetically actuated block.

[0012] As another improvement of the present application, an internal water receiving unit is also connected in series on one wire. The internal water receiving unit includes an internal electromagnetic plate fixedly connected between the water absorption layer and the sealing layer on the side close to the pipe joint, and a water receiving pad arranged inside the sealing layer on the side close to the pipe joint. A pre-expansion ring cavity and a magnetic receiving ring groove are formed inside the sealing layer. The mouth of the magnetic receiving ring groove faces the internal electromagnetic plate, and the pre-expansion ring cavity and the magnetic receiving ring groove are interconnected, and the water receiving pad is located in the magnetic receiving ring groove.

[0013] As a supplement to another improvement of the present application, the water receiving pad includes a magnetically movable ring plate slidably connected in the magnetic receiving ring groove and a spherical ring bladder fixedly connected to the mouth of the pre-expansion ring cavity, and the magnetically movable ring plate is in contact with the spherical ring bladder. The magnetically movable ring plate is of a rigid structure, and the spherical ring bladder is of an elastic structure.

[0014] As a supplement to another improvement of the present application, the spherical ring bladder is interconnected with the pre-expansion ring cavity, and both of them are filled with compressed air. The inner wall of the pre-expansion ring cavity facing the axis of the external water receiving sealing ring is an arc surface structure bent towards the axis.

[0015] In summary, through the setting of the external water receiving moving rod, when water seepage occurs, the external water receiving sealing ring can gradually adsorb the seeping water. Under the action of the water conductivity, the two wires are conducted, and then the circuit is powered on, so that the inner moving rod gradually bends and generates force data. This signal can be fed back to the monitoring center, and then the water seepage detection for remote monitoring of the pipeline interface is realized. The staff can obtain the abnormal signal in time and carry out targeted maintenance. Compared with the prior art, the dependence on manual labor is greatly reduced, and the timeliness of detecting the leakage point is greatly improved, reducing the impact on water transportation; at the same time, with the setting of the internal water receiving unit, when water seepage occurs, the internal water receiving unit will be started synchronously, so that the contact between the sealing layer and the pipeline and the end of the pipe joint can be made closer, thereby compensating for the sealing performance and effectively suppressing water seepage. Description of the Drawings

[0016] Figure 1 Is a three-dimensional view of the first embodiment of the present application; Figure 2 Is a three-dimensional view of the first embodiment of the present application during use; Figure 3 Is a cross-sectional view of the first embodiment of the present application; Figure 4 Is Figure 3 The enlarged view at A in Figure 5 Is a comparison diagram of the changes of the inner moving rod of the first embodiment of the present application before and after water seepage; Figure 6 Is a cross-sectional view of the part of the external water receiving sealing ring of the first embodiment of the present application; Figure 7Schematic diagram of the side of the wire outside the water-receiving outer sealing ring in the first embodiment of the present application; Figure 8 Cross-sectional view of the water-receiving outer sealing ring part in the second embodiment of the present application; Figure 9 Schematic diagram of a part of the cross-section of the water-receiving outer sealing ring after water seepage in the first embodiment of the present application.

[0017] Explanation of the reference numerals in the figure: 1 Outer ring sleeve, 2 Water-receiving outer sealing ring, 21 Sealing layer, 22 Water-absorbing layer, 23 Inner electromagnetic plate, 24 Magneto-motive ring plate, 25 Spherical ring bladder, 201 Pre-expanded ring cavity, 202 Magneto-receiving ring groove, 3 Bearing plate, 4 Outer transparent hard tube, 51 Outer sheath, 52 Wire, 6 Inner moving rod, 61 Sensing rod, 62 Magneto-receiving moving block, 63 Pressure sensor, 601 Limit ring, 7 Outer electromagnetic plate. Specific embodiments

[0018] The following will describe in detail two embodiments of the present application with reference to the accompanying drawings.

[0019] First embodiment: Figure 1-2 As shown, in the figure, a represents a water pipe and b represents a pipe joint. A water pipeline leakage detection device includes a monitoring center, two outer ring sleeves 1, and two water-receiving outer sealing rings 2 respectively sleeved on the two ends of the pipe joint on both sides of the pipeline. The two outer ring sleeves 1 are clamped on the outside of the pipe joint, and they are fixedly connected by a plurality of bolts. At the upper end of the upper outer ring sleeve 1, two bearing plates 3 are fixedly connected. At one end of the two bearing plates 3 close to each other, outer electromagnetic plates 7 are fixedly connected. An outer water-receiving moving rod is fixedly connected between the two outer electromagnetic plates 7. A detection circuit is also fixedly installed inside the bearing plate 3. The two outer electromagnetic plates 7 are respectively connected in series to the corresponding detection circuits. At the upper ends of the two bearing plates 3, lead units are fixedly connected. Under normal circumstances, this detection circuit is in an open state. When water seepage occurs, water, as a conductor, can conduct this detection circuit, thereby realizing the detection of water seepage. Compared with the prior art of regular inspections, this detection device has stronger timeliness for water seepage detection, and at the same time, it is not easy to miss detections, making the detection effect better, facilitating the maintenance of the normal and stable transportation of water, and realizing the water seepage detection of remote monitoring of the pipeline interface. Staff can obtain abnormal signals in time and carry out targeted maintenance. Compared with the prior art, it greatly reduces the dependence on manual labor, and greatly improves the timeliness of detecting leakage points and reduces the impact on water transportation.

[0020] It should be noted that the detection circuit is a complete circuit, that is, it has its own power supply. At the same time, in specific implementation, a solar panel can also be installed at the outer end of the bearing plate 3, and this solar panel can also supply power to the detection circuit as a part of the electric energy, making this detection device more durable and eliminating the need for frequent battery replacement.

[0021] Among them, to ensure safety, the outer ring sleeve 1 is made of insulating material, and the outer electromagnetic plate 7 is wrapped with an insulating layer on its surface, so that in case of water seepage, electric leakage is not likely to occur.

[0022] Such as Figure 3 , the lead unit includes an outer sheath 51 fixedly connected to the upper end of the carrier plate 3 and two wires 52 connected in series to the detection circuit. Such as Figure 6-7 , the outer sheath 51 fixedly penetrates through the outer ring sleeve 1 and extends into the outer ring sleeve 1, and the two wires 52 are arranged inside the outer sheath 51 and extend outside the outer sheath 51. One wire 52 is wound around the outer surface of the water-receiving outer sealing ring 2 in a ring shape, and the other wire 52 fixedly penetrates through the water-receiving outer sealing ring 2 and is wound around the inner wall of the water-receiving outer sealing ring 2. Through the winding arrangement on the inner and outer surfaces of the water-receiving outer sealing ring 2, the two wires 52 can be radially distributed on the water-receiving outer sealing ring 2 and the distribution range is relatively wide. When water seepage occurs, after the water-absorbing layer 22 absorbs water, the ends of the two wires 52 can be conducted with each other faster, thereby making the effect of water seepage detection better.

[0023] Such as Figure 6 , the water-receiving outer sealing ring 2 includes two sealing layers 21 and a water-absorbing layer 22 fixedly embedded between the two sealing layers 21. The two wires 52 correspond to the water-absorbing layer 22 respectively. The sealing layer 21 is made of elastic material, and the water-absorbing layer 22 is made of hard water-absorbing material. And the two sealing layers 21 are respectively in contact with the outer ring sleeve 1 and the outer end of the pipe joint, so that under normal circumstances, the water-receiving outer sealing ring 2 can form an outer sealing layer outside the pipe joint, improving the sealing effect and reducing the probability of water seepage.

[0024] Such as Figure 4-5, the externally water-receiving moving rod includes an externally transparent hard tube 4 fixedly connected between two external electromagnetic plates 7 and an internal moving rod 6 placed inside the externally transparent hard tube 4. Two limiting rings 601 are fixedly connected to the inner wall of the externally transparent hard tube 4. The internal moving rod 6 is located between the two limiting rings 601 and is in contact with both limiting rings 601 simultaneously. The internal moving rod 6 includes two magnetically actuated blocks 62, a sensing rod 61 fixedly connected to one end of the two magnetically actuated blocks 62 close to each other, and a pressure sensor 63 installed between the two sensing rods 61. The pressure sensor 63 is signal-connected to the monitoring center. Both sensing rods 61 are made of elastic materials. The magnetically actuated blocks 62 and the pressure sensor 63 are both matched with the inner wall of the externally transparent hard tube 4. The energized external electromagnetic plate 7 generates a magnetic repulsive force on the corresponding magnetically actuated block 62. After water seepage, the detection circuit is conducted. At this time, when the external electromagnetic plate 7 is energized, it can generate a thrust on the magnetically actuated block 62, causing the sensing rod 61 to gradually deform and significant pressure data to appear at the pressure sensor 63. It can feedback this data to the monitoring center. The monitoring center judges that water seepage occurs at the corresponding pipeline according to this data and can notify the staff to carry out targeted maintenance and repair, so that the water seepage situation can be detected and processed in time, effectively reducing the impact on water transportation caused by water seepage.

[0025] In addition, for the staff passing by near the water pipe, when observing that 6 is in a non-straight state, even without the reminder of the monitoring center, the staff can initially judge that there may be water seepage at this place, further improving the effect of leakage detection.

[0026] In summary, through the setting of the externally water-receiving moving rod, when water seepage occurs, the water-receiving outer sealing ring 2 can gradually adsorb the seeping water. Under the action of the water conductivity, the two wires 52 are conducted, and then the circuit is energized, so that the internal moving rod 6 gradually bends and generates force data. This signal can be feedback to the monitoring center, thus realizing the water seepage detection for remote monitoring of the pipeline interface. The staff can obtain the abnormal signal in time and carry out targeted maintenance. Compared with the prior art, it greatly reduces the dependence on manual labor and greatly improves the timeliness of discovering the leakage point, reducing the impact on water transportation.

[0027] The second implementation mode: Based on the first implementation mode, this implementation mode adds an internally water-receiving unit, and the rest is the same as the first implementation mode.

[0028] Figure 8It is shown that an internal water receiving unit is also connected in series on one of the wires 52. The internal water receiving unit includes an internal electromagnetic plate 23 fixedly connected between the water absorption layer 22 and the sealing layer 21 on the side close to the pipe joint, and a water receiving pad arranged inside the sealing layer 21 on the side close to the pipe joint. A pre-expansion ring cavity 201 and a magnetic receiving ring groove 202 are formed inside the sealing layer 21. The mouth of the magnetic receiving ring groove 202 faces the internal electromagnetic plate 23, and the pre-expansion ring cavity 201 and the magnetic receiving ring groove 202 are communicated with each other. The water receiving pad is located in the magnetic receiving ring groove 202. The water receiving pad includes a magnetically movable ring plate 24 slidably connected in the magnetic receiving ring groove 202 and a spherical ring bladder 25 fixedly connected to the mouth of the pre-expansion ring cavity 201. The magnetically movable ring plate 24 is in contact with the spherical ring bladder 25. The magnetically movable ring plate 24 is a rigid structure, and the spherical ring bladder 25 is an elastic structure. When water seeps, after the two wires 52 are electrically connected to each other, the internal electromagnetic plate 23 is also energized, generating a thrust on the magnetically movable ring plate 24. The magnetically movable ring plate 24 will squeeze the spherical ring bladder 25, so that the gas inside it is squeezed only into the pre-expansion ring cavity 201. On the one hand, a radial thrust is generated on the sealing layer 21, making the contact tightness between its inner surface and the outer wall of the pipe higher. On the other hand, the contact tightness between the sealing layer 21 and the end of the pipe joint is also improved. Furthermore, after water seeps, the water receiving outer sealing ring 2 can compensate for the sealing performance at the joint, thereby achieving the effect of suppressing leakage, so that the leaked water is not likely to seep out too much before the staff arrives at the site for maintenance.

[0029] The spherical ring bladder 25 is communicated with the pre-expansion ring cavity 201, and both of them are filled with compressed air. The inner wall of the pre-expansion ring cavity 201 on the side facing the axis of the water receiving outer sealing ring 2 is an arc surface structure bent towards the axis. After the air in the spherical ring bladder 25 is squeezed into the pre-expansion ring cavity 201, under the action of this arc surface, the water receiving outer sealing ring 2 is more likely to deform towards the axis side, making the connection tightness between it and the pipe better.

[0030] With the setting of the internal water receiving unit, when water seepage occurs, the internal water receiving unit will be synchronously started, so that the contact between the sealing layer 21 and the pipe, as well as the end of the pipe joint, can be made closer, thereby compensating for the sealing performance, and effectively suppressing water seepage, so that the leaked water is not likely to seep out too much before the staff arrives at the leakage point for maintenance.

[0031] Combined with the current actual needs, the above-mentioned implementation method adopted in this application, the protection scope is not limited to this. Within the knowledge scope of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A water conservancy pipeline leakage detection device, characterized in that: The invention comprises a monitoring center, two outer ring sleeves (1), and two water receiving outer sealing rings (2) respectively sleeved on the pipe openings on both sides of the pipe joint, wherein the two outer ring sleeves (1) are clamped on the outside of the pipe joint and are fixedly connected by a plurality of bolts, the upper end of the upper outer ring sleeve (1) is fixedly connected to two bearing plates (3), the ends of the two bearing plates (3) close to each other are fixedly connected to an outer electromagnetic plate (7), an outer water receiving dynamic rod is fixedly connected between the two outer electromagnetic plates (7), a detection circuit is also fixedly installed inside the bearing plate (3), and the two outer electromagnetic plates (7) are respectively connected in series to the corresponding detection circuits. In the circuit, the upper ends of the two carrier plates (3) are fixedly connected with lead units, the lead units comprising an outer sheath (51) fixedly connected to the upper ends of the carrier plates (3) and two wires (52) connected in series to the detection circuit, the outer sheath (51) fixedly passes through the outer ring sheath (1) and extends into the outer ring sheath (1), and the two wires (52) are inserted into the outer sheath (51) and extend outside the outer sheath (51), one of the wires (52) is annularly wound around the outer surface of the water receiving outer sealing ring (2), and the other of the wires (52) fixedly passes through the water receiving outer sealing ring (2) and is wound around the inner wall of the water receiving outer sealing ring (2).

2. A water conservancy pipeline leakage detection device according to claim 1, characterized in that: The water-receiving outer sealing ring (2) comprises two sections of sealing layers (21) and a water absorbing layer (22) fixedly embedded between the two sections of sealing layers (21), and the two conductive wires (52) both correspond to the water absorbing layer (22).

3. A water conservancy pipeline leakage detection device according to claim 2, characterized in that: The sealing layer (21) is made of an elastic material, the water absorbing layer (22) is made of a hard water absorbing material, and the two sealing layers (21) are in contact with the outer ring sleeve (1) and the outer end of the pipe joint respectively.

4. A water conservancy pipeline leakage detection device according to claim 1, characterized in that: The outer water-receiving moving rod comprises an outer permeable hard tube (4) fixedly connected between two outer electromagnetic plates (7) and an inner moving rod (6) placed in the outer permeable hard tube (4); two limiting rings (601) are fixedly connected to the inner wall of the outer permeable hard tube (4); the inner moving rod (6) is located between the two limiting rings (601), and the inner moving rod (6) is in contact with the two limiting rings (601) at the same time.

5. A water conservancy pipeline leakage detection device according to claim 4, characterized in that: The inner moving rod (6) comprises two magnetized moving blocks (62), a sensing rod (61) fixedly connected to one end of the two magnetized moving blocks (62) close to each other, and a pressure sensor (63) installed between the two sensing rods (61), wherein the pressure sensor (63) is connected to a monitoring center signal, and the two sensing rods (61) are both made of elastic material, and the magnetized moving blocks (62) and the pressure sensor (63) are matched with the inner wall of the outer hard tube (4), and the outer electromagnetic plate (7) generates a magnetic repulsive force on the corresponding magnetized moving block (62) when energized.

6. A water conservancy pipeline leakage detection device according to claim 2, characterized in that: An internal water receiving unit is also connected in series to one of the conductors (52), the internal water receiving unit comprising an internal electromagnetic plate (23) fixedly connected between a water absorbing layer (22) and a sealing layer (21) close to one side of the pipe joint, and a water receiving pad arranged inside the sealing layer (21) close to one side of the pipe joint, a pre-expansion ring cavity (201) and a magnetic ring groove (202) are excavated inside the sealing layer (21), the mouth of the magnetic ring groove (202) is directly opposite to the internal electromagnetic plate (23), the pre-expansion ring cavity (201) and the magnetic ring groove (202) are interconnected, and the water receiving pad is located inside the magnetic ring groove (202).

7. A water conservancy pipeline leakage detection device according to claim 6, characterized in that: The water receiving pad comprises a magnetically movable ring plate (24) slidably connected in the magnetic receiving ring groove (202), and a spherical ring capsule (25) fixedly connected to the mouth of the pre-expansion ring cavity (201), and the magnetically movable ring plate (24) and the spherical ring capsule (25) are in contact with each other, the magnetically movable ring plate (24) is a hard structure, and the spherical ring capsule (25) is an elastic structure.

8. A water conservancy pipeline leakage detection device according to claim 7, characterized in that: The spherical ring capsule (25) and the pre-expansion ring cavity (201) are interconnected, and both are filled with compressed air. The inner wall of the pre-expansion ring cavity (201) facing the axis of the water receiving outer sealing ring (2) is a curved surface structure that bends toward the axis.

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