Pipeline deflection deformation monitoring and early warning device

Abstract

The utility model provides a kind of pipeline flexure deformation monitoring and early warning device, belong to pipeline safety monitoring technical field, including flexible outer tube, inner tube, plugging piece and electrode wire.The bending strength of inner tube is lower than the pipeline to be monitored, is worn in flexible outer tube inside, and there is circumferential gap between the two.Inner tube both ends are sealed, and inside is filled with electrolyte;Plugging piece is blocked in the circumferential gap of the axial both ends of flexible outer tube and inner tube, and forms sealed cavity.Electrode wire contains copper and zinc, and is composed of mutually connected electrode segment and wire segment, electrode segment is located in sealed cavity and is mutually spaced, wire segment is located outside sealed cavity, and is electrically connected with remote alarm.The pipeline flexure deformation monitoring and early warning device provided by the utility model solves the safety monitoring problem of special medium pipeline in uneven settlement area.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline safety monitoring technology, and more specifically, it relates to a pipeline flexural deformation monitoring and early warning device. Background Technology

[0002] In pipeline engineering, it is common for pipelines to pass through areas of uneven settlement, such as expansion joints and settlement joints. These areas can easily cause pipelines to be subjected to flexural forces, leading to deformation or even rupture, posing a risk of media leakage. Current technology requires the use of compensating pipes (such as corrugated pipes or expansion joints) to mitigate deformation. However, for special pipelines transporting media such as ultrapure water or corrosive chemicals, these media often have strict requirements on pipeline materials, making suitable compensating pipes unavailable. Even if compensating pipes are used, their joints are prone to leakage due to settlement deformation. If not detected and addressed promptly, this can threaten production and daily life safety. Utility Model Content

[0003] The purpose of this invention is to provide a pipeline flexure deformation monitoring and early warning device, which can provide early warning of pipeline flexure deformation and solve the safety monitoring problem of pipelines containing special media.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a pipeline flexural deformation monitoring and early warning device, which is laid parallel to one side of the pipeline being monitored, comprising: Flexible outer tube; The inner tube has a bending strength lower than that of the monitored pipe. The inner tube is inserted inside the flexible outer tube. There is a circumferential gap between the flexible outer tube and the inner tube. The two ends of the inner tube are sealed. The inner tube is filled with electrolyte. A sealing element, wherein the sealing element is used to seal the circumferential gap between the flexible outer tube and the inner tube at both axial ends, thereby forming a sealed cavity between the flexible outer tube and the inner tube; The electrode wire includes a copper electrode wire and a zinc electrode wire. Both the copper electrode wire and the zinc electrode wire include interconnected electrode segments and wire segments. The electrode segments are located inside the sealed cavity and are spaced apart from each other. The wire segments are located outside the sealed cavity and are electrically connected to a remote alarm. The inner tube flexed and ruptured, and the electrolyte leaked into the sealed cavity, forming a galvanic cell with the electrode segment to trigger the remote alarm.

[0005] In one possible implementation, one end of the electrode segment is fixed to the sealing member on one side, and the other end of the electrode segment passes through the sealing member on the other side and is connected to the wire segment.

[0006] In one possible implementation, the electrode segment is disposed in a relaxed state within the sealed cavity.

[0007] In one possible implementation, an insulating partition is provided inside the sealed cavity along the length of the inner tube, with both ends of the insulating partition fixed to the corresponding sealing member, and the electrode segment is located on both sides of the insulating partition.

[0008] In one possible implementation, the insulating separator is provided with a through-hole.

[0009] In one possible implementation, a flexible insulating strip is provided inside the sealing cavity, with both ends of the flexible insulating strip connected to the two sealing members respectively. The flexible insulating strip is arranged in a relaxed state, and the electrode segment is fixed on two opposite sides of the flexible insulating strip.

[0010] In one possible implementation, the remote alarm includes a buzzer and a wireless signal transmitter, wherein the buzzer is used to emit an alarm sound locally, and the wireless signal transmitter is used to transmit an electrical signal to an external control platform.

[0011] In one possible implementation, a liquid collection groove is provided on the bottom of the inner sidewall of the flexible outer tube along its length. The cross-section of the liquid collection groove is tapering, and the cross-sectional area of ​​the liquid collection groove gradually decreases from the top opening to the bottom. The electrode segment is located inside the liquid collection groove.

[0012] In one possible implementation, the liquid collection tank is integrally formed with the flexible outer tube.

[0013] In one possible implementation, the electrode segment and the conductor segment are integrally formed.

[0014] The beneficial effects of the pipeline flexural deformation monitoring and early warning device provided by this utility model are as follows: Compared with the prior art, this utility model pipeline flexural deformation monitoring and early warning device sets the bending strength of the inner pipe to be lower than that of the monitored pipeline and seals the inner pipe with electrolyte. This allows the flexural force generated by settlement to act on the inner pipe first, causing the inner pipe to rupture before the special pipelines transporting ultrapure water and corrosive chemicals. The electrolyte in the inner pipe leaks into the sealed cavity and quickly forms a galvanic cell with the electrode sections of the copper and zinc electrode wires to generate an alarm current, triggering the remote alarm and realizing "real-time remote early warning". Staff can know about the hidden dangers in time without on-site inspection, avoiding the risk expansion due to failure to deal with it in time. This solves the problem of safety monitoring of special medium pipelines in uneven settlement areas. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the axial cross-sectional structure of the pipeline flexural deformation monitoring and early warning device provided in this embodiment of the utility model; Figure 2 A schematic diagram of the transverse cross-sectional structure of the pipeline flexural deformation monitoring and early warning device provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the main structure of the insulating separator provided in an embodiment of the present utility model; Figure 4 A schematic diagram of the main structure of the pipeline flexural deformation monitoring and early warning device provided in this embodiment of the utility model; Figure 5 for Figure 4 A side view structural diagram.

[0017] Explanation of reference numerals in the attached figures: 1. Flexible outer tube; 11. Sealed cavity; 12. Liquid collection tank; 2. Inner tube; 3. Sealing component; 4. Electrode wire; 41. Electrode segment; 42. Wire segment; 5. Electrolyte; 6. Insulating separator; 61. Flow hole; 7. Monitored pipeline; 8. Building structure; 9. Pipe rack; 91. Longitudinal bar; 92. Cross bar; 93. Lead screw; 94. Bolt. Detailed Implementation

[0018] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] Please see Figures 1 to 5 The present invention provides a description of a pipeline flexure deformation monitoring and early warning device. The device includes a flexible outer tube 1, an inner tube 2, a sealing element 3, and electrode wires 4. The inner tube 2 has a lower bending strength than the monitored pipeline 7. The inner tube 2 passes inside the flexible outer tube 1, and a circumferential gap exists between the flexible outer tube 1 and the inner tube 2. Both ends of the inner tube 2 are sealed, and the inner tube 2 is filled with electrolyte 5. The sealing element 3 seals the circumferential gap between the flexible outer tube 1 and the inner tube 2 at both axial ends, forming a sealed cavity 11 between the flexible outer tube 1 and the inner tube 2. The electrode wires 4 include copper electrode wires and zinc electrode wires. Both copper and zinc electrode wires include interconnected electrode segments 41 and wire segments 42. The electrode segment 41 is located... The inner tube 2 is installed in the sealed cavity 11 and spaced apart from each other. The conductor segment 42 is located outside the sealed cavity 11 and electrically connected to the remote alarm. In application, this device is laid parallel to one side of the monitored pipeline 7. Since the bending strength of the inner tube 2 is lower than that of the monitored pipeline 7, when the installation area of ​​the monitored pipeline 7 settles, the inner tube 2 will flex and rupture before the monitored pipeline 7. When the inner tube 2 ruptures, the electrolyte 5 will leak into the sealed cavity 11 and form a galvanic cell with the electrode segment. The current generated by the galvanic cell is transmitted to the remote alarm through the conductor segment, triggering the remote alarm to alert the staff to deal with the settlement problem in time and avoid subsequent rupture and leakage of the monitored pipeline 7.

[0023] In this embodiment, the aforementioned sealing component 3 is an insulating structural component and a ring-shaped structure. In use, the ring-shaped sealing component 3 is fitted onto the inner tube 2 and inserted between the inner tube 2 and the flexible outer tube 1. The sealing between the sealing component 3 and the inner tube 2, as well as between the sealing component 3 and the flexible outer tube 1, is performed using sealant or sealing rings.

[0024] The aforementioned remote alarm is a common early warning device in production and daily life. In this embodiment, the remote alarm can be installed on a nearby building component or on the monitored pipe 7 on one side. In this embodiment, the selected remote alarm includes a buzzer and a wireless signal transmitter. The buzzer is a sound-generating element directly integrated into the housing of the remote alarm. It can be a piezoelectric or electromagnetic structure and can emit a high-frequency, highly recognizable sound when working. When the inner tube 2 of this device breaks or the galvanic cell generates current to trigger the alarm, the buzzer will ring immediately, allowing nearby inspection personnel and on-site operators to notice the hidden danger as soon as possible and avoid missing the opportunity to deal with the situation on-site because personnel are not in the monitoring room.

[0025] The wireless signal transmitter is the connecting component between the remote alarm and the external control platform (such as a monitoring center computer or mobile app), and it has a built-in wireless communication module (such as LoRa, 4G / 5G, WiFi, NB-IoT, etc.). Its working logic is as follows: after receiving the electrical signal from the primary battery, it first converts the electrical signal into a wireless signal conforming to the communication protocol (such as LoRa spread spectrum signal or 4G cellular network signal), and then sends the signal to the external control platform through the antenna, achieving "real-time off-site early warning." Simultaneously, the wireless signal transmitter also includes alarm location information (such as through preset pipe numbers or GPS positioning), allowing remote personnel to accurately locate potential hazards.

[0026] The pipeline flexural deformation monitoring and early warning device provided by this utility model, compared with the prior art, sets the bending strength of the inner pipe 2 to be lower than that of the monitored pipeline 7 and seals the inner pipe 2 with electrolyte 5. This allows the flexural force generated by settlement to act preferentially on the inner pipe 2, causing the inner pipe 2 to rupture before the special pipelines transporting ultrapure water and corrosive chemicals. The electrolyte 5 sealed in the inner pipe 2 leaks into the sealing cavity 11 and quickly forms a galvanic cell with the electrode segments 41 of the copper and zinc electrode wires, generating an alarm current and triggering the remote alarm, thus realizing "real-time remote early warning". Staff can be aware of potential hazards in a timely manner without on-site inspection, avoiding the risk expansion due to failure to deal with them in time. This solves the problem of safety monitoring of special medium pipelines in areas of uneven settlement.

[0027] In some embodiments, one end of the electrode segment 41 is fixed to the sealing member 3 on one side by embedding or sealing bonding, giving the electrode segment 41 a stable "anchor point" to prevent it from shaking randomly in the sealed cavity 11. The other end of the electrode segment 41 passes through the sealing member 3 on the other side and is directly connected to the external wire segment 42. In practical applications, the position where the electrode segment 41 passes through the sealing member 3 is sealed with sealant or sealing ring. In this way, it can ensure that the electrode segment 41 can pass through smoothly to connect to the wire segment 42, and it will not damage the original sealing function of the sealing member 3, ensuring that the sealed cavity 11 will not leak liquid or enter impurities from the penetration point.

[0028] In this embodiment, the electrode segment 41 is positioned in a relaxed state within the sealed cavity 11. This "relaxed state" does not mean the electrode segment 41 is loosely secured, but rather that its length within the sealed cavity 11 is slightly longer than the axial length of the cavity, allowing for some leeway. This prevents the electrode segment 41 from being tightly stretched within the cavity, allowing it to hang naturally or be slightly bent, providing sufficient room for movement. In practical applications, during settlement, the flexible outer tube 1 will slightly stretch or compress along with the pipeline. If the electrode segment 41 is taut, it will break when stretched or bend and deform when compressed, either breaking and failing to trigger an alarm, or deforming and causing the electrodes to collide and trigger a false alarm. The relaxed state with leeway allows the electrode segment 41 to adapt to the deformation of the flexible outer tube 1 without breaking or being damaged.

[0029] In this embodiment, the electrode segment 41 and the wire segment 42 are integrally formed. The electrode segment 41 is an exposed metal wire segment used to contact the electrolyte 5 within the sealed cavity 11, serving as an electrode for the galvanic cell. The wire segment 42 is a metal wire segment wrapped with insulating rubber, used as a wire to connect to the remote alarm. In traditional separate structures, the connection points (such as solder joints or plugs) of the electrode segment 41 and the wire segment 42 are vulnerable points prone to failure. During long-term use, vibration, temperature changes, and media corrosion may cause the solder to detach, the contact to oxidize, and the connection to loosen, leading to unstable current transmission. In this embodiment, the electrode segment 41 and the wire segment 42 are integrally formed, eliminating the above risks and ensuring the continuity and stability of power transmission.

[0030] In some embodiments, please refer to Figures 1 to 2 An insulating partition 6 is provided along the length of the inner tube 2 inside the sealed cavity 11. Both ends of the insulating partition 6 are fixed to the sealing members 3 on both sides. In this embodiment, the insulating partition 6 is longitudinally positioned at the bottom of the sealed cavity 11. The height of the insulating partition 6 is less than the circumferential gap between the flexible outer tube 1 and the inner tube 2. The insulating partition 6 effectively forms a longitudinal insulating wall at the bottom of the sealed cavity 11. In this embodiment, the electrode segments 41 of the copper electrode wire and the zinc electrode wire are fixed to both sides of the insulating partition 6. The insulation of the insulating partition 6 completely blocks direct contact between the two electrode segments 41, preventing false short-circuit alarms. In this embodiment, the electrode segments 41 are bonded or fixed to the surface of the insulating partition 6 via slots, preventing them from moving freely within the sealed cavity 11 and further ensuring positional stability.

[0031] Furthermore, a flow-through hole 61 is provided through the insulating separator 6. After the electrolyte 5 leaks into the sealed cavity 11, it can flow freely on both sides of the insulating separator 6 through the flow-through hole 61, and eventually contact the electrode segments 41 of the copper electrode wire and the zinc electrode wire at the same time, ensuring that the galvanic cell is formed smoothly. In this embodiment, the size and number of flow-through holes 61 will be adaptively adjusted according to the volume of the sealed cavity 11 and the viscosity of the electrolyte 5, usually ensuring that the electrolyte 5 can fill the space on both sides within 10 seconds, without delaying the alarm response speed.

[0032] In some embodiments, a flexible insulating strip is provided inside the sealing cavity 11. In application, the flexible insulating strip can be made of materials such as silicone rubber, fluororubber, or flexible epoxy resin. The flexible insulating strip can be a strip structure with a rectangular cross-section. Both ends of the flexible insulating strip are connected to two sealing members 3, and the flexible insulating strip is arranged in a relaxed state. This relaxed arrangement does not mean that the flexible insulating strip is loose and unfixed, but rather that the actual length of the flexible insulating strip is slightly longer than the straight-line distance between the two sealing members 3. When settlement causes axial stretching of the sealing cavity 11, the relaxed flexible insulating strip can naturally elongate, preventing it from being torn apart. In this embodiment, the electrode segments 41 of the copper electrode wire and the zinc electrode wire are respectively fixed to two opposite sides of the flexible insulating strip and fixed by adhesive, slotting, or embedding. This design serves two purposes: first, the insulation of the flexible insulating strip completely blocks the direct contact between the two electrodes; even if the flexible insulating strip bends and deforms, the electrode segment 41 is separated on both sides, preventing false short-circuit alarms; second, the electrode segment 41 can deform synchronously with the insulating strip, avoiding breakage due to conflict between its own rigidity and the deformation of the sealing cavity 11. For example, when the insulating strip bends, the electrode segment 41 will bend along with it, preventing damage from being pulled or squeezed.

[0033] In some embodiments, please refer to Figure 2A liquid collection tank 12 is provided along its length on the bottom of the inner sidewall of the flexible outer tube 1, and is integrally formed with the flexible outer tube 1 using the same material, ensuring that there are no joint gaps between the liquid collection tank 12 and the outer tube, preventing the tank from falling off or leaking due to settlement deformation. Simultaneously, the liquid collection tank 12, located at the bottom, can naturally collect leaked electrolyte 5 using gravity. In this embodiment, the cross-section of the liquid collection tank 12 is tapered, wider at the top and narrower at the bottom, with the cross-sectional area gradually decreasing from the top opening to the bottom. When the inner tube 2 ruptures, the electrolyte 5 leaks into the sealed cavity 11, flows along the inner wall of the flexible outer tube 1, and falls into the liquid collection tank 12. The tapered cross-section acts like a funnel, guiding the dispersed electrolyte 5 towards the bottom of the tank, ensuring that sufficient electrolyte 5 can quickly accumulate at the bottom. In this embodiment, the electrode segments 41 of the copper electrode wire and the zinc electrode wire are placed inside the liquid collection tank 12, directly contacting the electrolyte 5 within the tank. Since the collecting tank 12 can collect the electrolyte 5, even if the inner tube 2 is broken at a far location or the leakage is small, the electrolyte 5 will be concentrated at the bottom of the tank through the contraction section and fully contact the electrode section 41, ensuring that the galvanic cell is formed quickly and reducing alarm delay.

[0034] Please see Figure 4 and Figure 5 This is one application scenario of the device, in which a settlement joint exists between two building structures 8. The monitored pipe 7 passes through this settlement joint and is fixed between the two building structures 8 by a pipe rack 9. The device is laid parallel to one side of the monitored pipe 7 and fixed by the pipe rack 9. In this scenario, the pipe rack 9 is a U-shaped frame, which includes two longitudinal bars 91 and a crossbar 92 installed at the bottom of the longitudinal bars 91. The longitudinal bars 91 and the crossbar 92 are connected by a screw 93 and a bolt 94. The position of the crossbar 92 can be adjusted up and down by rotating the bolt 94. The monitored pipe 7 is fixed to the device on the crossbar 92. When one of the building structures 8 settles, the inner pipe 2 of the device breaks before the monitored pipe 7, triggering an alarm. Staff can arrive at the scene in time and adjust the bolt 94 on the pipe rack 9 to raise the monitored pipe 7 on the settlement side of the crossbar 92, thereby solving the bending force on the monitored pipe 7 caused by the settlement of the building structure 8 and preventing it from deforming and breaking.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipeline flexure deformation monitoring and early warning device, used for parallel installation on one side of the pipeline to be monitored, characterized in that, include: Flexible outer tube (1); Inner tube (2), the bending strength of the inner tube (2) is lower than the bending strength of the monitored pipe (7), the inner tube (2) is inserted inside the flexible outer tube (1), there is a circumferential gap between the flexible outer tube (1) and the inner tube (2), the two ends of the inner tube (2) are sealed, and the inner tube (2) is filled with electrolyte (5); A sealing element (3) is used to seal the circumferential gap between the flexible outer tube (1) and the inner tube (2) at both ends of the axial direction, so as to form a sealing cavity (11) between the flexible outer tube (1) and the inner tube (2); Electrode wire (4), the electrode wire (4) includes copper electrode wire and zinc electrode wire, the copper electrode wire and the zinc electrode wire each include interconnected electrode segment (41) and wire segment (42), the electrode segment (41) is located inside the sealed cavity (11) and is spaced apart from each other, the wire segment (42) is located outside the sealed cavity (11) and is electrically connected to a remote alarm; The inner tube (2) flexes and deforms and breaks, and the electrolyte (5) leaks into the sealed cavity (11), forming a galvanic cell with the electrode segment (41) to trigger the remote alarm.

2. The pipeline flexure deformation monitoring and early warning device as described in claim 1, characterized in that, One end of the electrode segment (41) is fixed to the sealing member (3) on one side, and the other end of the electrode segment (41) passes through the sealing member (3) on the other side and is connected to the wire segment (42).

3. The pipeline flexure deformation monitoring and early warning device as described in claim 2, characterized in that, The electrode segment (41) is set in a relaxed state within the sealed cavity (11).

4. The pipeline flexure deformation monitoring and early warning device as described in claim 2, characterized in that, An insulating partition plate (6) is provided inside the sealed cavity (11) along the length of the inner tube (2). The two ends of the insulating partition plate (6) are respectively fixed to the corresponding sealing member (3). The electrode segment (41) is provided on both sides of the insulating partition plate (6).

5. The pipeline flexure deformation monitoring and early warning device as described in claim 4, characterized in that, The insulating separator (6) is provided with a through-hole (61).

6. The pipeline flexure deformation monitoring and early warning device as described in claim 2, characterized in that, The sealing cavity (11) is provided with a flexible insulating strip. The two ends of the flexible insulating strip are respectively connected to the two sealing members (3). The flexible insulating strip is arranged in a relaxed state. The electrode segment (41) is fixed on the two opposite sides of the flexible insulating strip.

7. The pipeline flexure deformation monitoring and early warning device as described in claim 1, characterized in that, The remote alarm device includes a buzzer and a wireless signal transmitter. The buzzer is used to emit an alarm sound locally, and the wireless signal transmitter is used to transmit electrical signals to an external control platform.

8. The pipeline flexure deformation monitoring and early warning device as described in claim 1, characterized in that, The bottom of the inner sidewall of the flexible outer tube (1) is provided with a liquid collection groove (12) along its length direction. The cross-section of the liquid collection groove (12) is constricted. The cross-sectional area of ​​the liquid collection groove (12) gradually decreases from the top opening to the bottom. The electrode segment (41) is located in the liquid collection groove (12).

9. The pipeline flexure deformation monitoring and early warning device as described in claim 8, characterized in that, The liquid collection tank (12) and the flexible outer tube (1) are integrally formed.

10. The pipeline flexure deformation monitoring and early warning device as described in claim 1, characterized in that, The electrode segment (41) and the conductor segment (42) are integrally formed.

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