Real-time monitoring and early warning system for inner diameter of large-diameter water delivery pipeline

Abstract

The utility model discloses a real-time monitoring and early warning system for the inner diameter of a large-caliber water delivery pipeline, which comprises a plurality of groups of pull rope type displacement sensors arranged on the inner wall of a metal water delivery pipeline, and each group of pull rope type displacement sensors are respectively arranged on an X axis, a Y axis and a 45-degree angle which take the circle center of the inner diameter of the metal water delivery pipeline as a midpoint. The outer wall of the pull rope type displacement sensor is provided with a wire port, the inner wall of the wire port is slidably connected with a measuring steel wire rope, one end of the measuring steel wire rope is integrally provided with an extension steel wire rope, and one end of the extension steel wire rope is fixedly provided with a locking buckle which is arranged on the inner wall of the metal water conveying pipeline. According to the utility model, the measuring distance of the pull rope type displacement sensor is shortened by adding an extended steel wire rope with an invariable interval, so that the absolute precision can be improved under the condition that the linearity is invariable, and multi-section and multi-dimension synchronous monitoring can be carried out on the metal water delivery pipeline through the monitoring and early warning system. And early warning is performed in real time when the outer wall of the pipeline is grouted.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline inner diameter shape monitoring technical field especially relates to large -caliber water delivery pipeline inner diameter real -time monitoring early warning system. BACKGROUND

[0002] In the water delivery pipeline laying process in the water conservancy industry, pumped storage industry, water conserving water industry, when grouting filling is carried out to the water delivery pipeline, the degree of deformation of the water delivery pipeline caused by overpressure after external grouting needs to be monitored in real time, so as to avoid the occurrence of pipeline deformation and grouting leakage and other adverse accidents;

[0003] Because these water delivery pipelines are usually four to five meters or even longer in inner diameter, large-size displacement monitoring equipment is needed, and there are many methods for large-size displacement measurement at present, but the precision is converted according to linearity, and for large-diameter water delivery pipelines on site, the inner diameter is 4 meters, 5 meters or even larger range, the measurement precision is usually 0.1%, the linear degree needs to be controlled at 0.02% in the field application level, which requires very high cost, 4 meters is 4000mm, 0.02% precision means +-0.8mm precision deviation, for the deformation amount of the pipeline, the measurement precision of the existing pipeline inner diameter measurement equipment is seriously insufficient.

[0004] And in the grouting process, the deformation amount of the pipeline must be controlled within 0.1mm, the measurement precision needs to reach 0.01mm (10um) or smaller size. And the inner diameter of X, Y and 45 degree angle needs to be measured at the same time, and 6 sections need to be measured synchronously. The existing direct measurement technology cannot realize this measurement application requirement. The measurement precision is not enough, and it is not convenient to install on site, and it cannot output synchronously online, and realize monitoring and early warning function, therefore, a large-diameter water delivery pipeline inner diameter real-time monitoring early warning system is needed to solve the problems existing in the prior art. UTILITY MODEL CONTENT

[0005] The utility model relates to large -caliber water delivery pipeline inner diameter real -time monitoring early warning system that the utility model discloses a kind of large-diameter water delivery pipeline inner diameter real-time monitoring early warning system, including pipeline, pipeline is connected with the inner diameter of pipeline, and the inner diameter of pipeline is connected with the inner diameter of pipeline.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] The utility model provides a large -diameter water delivery pipeline inner diameter real -time monitoring early warning system, including setting up in the inner wall of metal water delivery pipeline multiple groups of pull rope type displacement sensor, each group pull rope type displacement sensor sets up respectively in the three angles of X, Y axis and 45 degree angle with metal water delivery pipeline inner diameter circle center as midpoint, and pull rope type displacement sensor outer wall has the wire guide mouth, and the wire guide mouth inner wall has the sliding joint of measuring steel wire rope, and the one end of measuring steel wire rope is integrative and has the extension steel wire rope, and the one end of extension steel wire rope is fixed with locking buckle, and locking buckle sets up in the inner wall of metal water delivery pipeline.

[0008] As a further scheme of the utility model: the first magnet block is fixed on the outer wall of the top of the locking buckle and is adsorbed on the inner wall of the metal water delivery pipeline by magnetic force.

[0009] As a further scheme of the utility model: the mounting plate is fixedly installed on the outer wall of the bottom of the pull rope type displacement sensor, a plurality of second magnet blocks are fixed on the outer wall of the bottom of the mounting plate, and the second magnet blocks are adsorbed on the inner wall of the metal water delivery pipeline by magnetic force.

[0010] As a further scheme of the utility model: the outer wall of the measuring steel wire rope and the extension steel wire rope is fixed with a partition piece.

[0011] As a further scheme of the utility model: the outer wall of the pull rope type displacement sensor is provided with a signal interface, and a signal transmission connector is inserted into the inner wall of the signal interface.

[0012] As a further scheme of the utility model: the signal transmission connector is connected with a control cabinet through a signal transmission line, the control cabinet is fixed with a warning light, and the warning light is electrically connected with the control cabinet.

[0013] As a further scheme of the utility model: the control cabinet is electrically connected with a grouting motor pump relay through a signal transmission line.

[0014] The utility model has the advantages that:

[0015] 1. the measuring distance of the pull rope type displacement sensor is shortened by adding the extension steel wire rope of the unchanged interval, so that the absolute accuracy can be improved without changing the linearity, the multiple sections and multiple dimensions of the metal water delivery pipeline can be synchronously monitored through the monitoring early warning system, and early warning can be realized in real time when the pipeline is grouted.

[0016] 2. Since the extension steel wire rope and the measuring steel wire rope are separated by the spacer, the extension steel wire rope and the measuring steel wire rope are fixed in the inner wall of the metal water pipeline through the locking buckle, the problem that the extension steel wire rope, the measuring steel wire rope and the locking buckle slide relative to each other during measurement to cause inaccurate measurement results is avoided, the measurement deviation caused by the sliding of the measured object during measurement is avoided, and the deformation measurement precision of the inner diameter of the pipeline is improved.

[0017] 3. Through the implementation of the technology, the deformation of the pipeline in the key process can be effectively controlled in real time, the original grouting mode relying on experience and visual observation is changed into an automatic grouting mode with real-time early warning, so that the grouting process is ensured to be efficient and safe, the overall project progress is accelerated, and the project cost is saved.

[0018] 4. Since the deformation of the metal water pipeline is more concerned during the implementation of the monitoring measurement, the monitoring and early warning system can perform a calibration operation after the pull rope type displacement sensor is installed in place each time, so that the measurement deviation introduced by the installation position in the field is eliminated. Real-time monitoring can be based on the calibrated data to perform real-time monitoring, so that the monitoring data is more intuitive and more accurate. When a large deformation deviation of the pipeline occurs during the grouting process, the control cabinet directly outputs an alarm signal to cut off the grouting motor pump, so that the safety of the pipeline and the construction personnel is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A layout structure schematic view of the real-time monitoring and early warning system for the inner diameter of the large-diameter water pipeline is provided for the utility model.

[0020] Figure 2 A locking buckle structure schematic view of the real-time monitoring and early warning system for the inner diameter of the large-diameter water pipeline is provided for the utility model.

[0021] Figure 3 A pull rope type displacement sensor structure schematic view of the real-time monitoring and early warning system for the inner diameter of the large-diameter water pipeline is provided for the utility model.

[0022] Figure 4 A circuit flow schematic view of the real-time monitoring and early warning system for the inner diameter of the large-diameter water pipeline is provided for the utility model.

[0023] In the figure: 1-pull rope type displacement sensor, 2-extension steel wire rope, 3-signal transmission connector, 4-locking buckle, 5-metal water pipeline, 6-first magnet block, 7-mounting plate, 8-second magnet block, 9-wire port, 10-spacer, 11-measuring steel wire rope, 12-signal interface. DETAILED DESCRIPTION

[0024] The technical solutions of the patent will be further described in detail in combination with specific embodiments.

[0025] The embodiments of the patent are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the patent, and cannot be understood as a limitation of the patent.

[0026] In the description of the patent, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the patent and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the patent.

[0027] In the description of the patent, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meanings of the above terms in the patent can be understood according to the specific circumstances.

[0028] Embodiment 1

[0029] The large-diameter water conveying pipe inner diameter real-time monitoring and early warning system, as shown in Figures 1-4 The large-diameter water conveying pipe inner diameter real-time monitoring and early warning system, as shown in

[0030] The first magnet block 6 is fixed on the outer wall of the top of the locking buckle 4, and the first magnet block 6 is adsorbed on the inner wall of the metal water conveying pipe 5 by magnetic force;

[0031] The mounting plate 7 is fixedly installed on the bottom outer wall of the pull rope type displacement sensor 1, and a plurality of second magnet blocks 8 are fixed on the bottom outer wall of the mounting plate 7, and the second magnet blocks 8 are adsorbed on the inner wall of the metal water conveying pipe 5 by magnetic force;

[0032] The measuring steel wire rope 11 and the extension steel wire rope 2 are fixed with a partition piece 10 on the outer wall.

[0033] The outer wall of the pull rope displacement sensor 1 is provided with a signal interface 12, and the inner wall of the signal interface 12 is inserted with a signal transmission connector 3;

[0034] The signal transmission connector 3 is connected with a control cabinet through a signal transmission line, the outer wall of the control cabinet is fixedly provided with a warning lamp, and the warning lamp is electrically connected with the control cabinet;

[0035] The control cabinet is electrically connected with a grouting motor pump relay through a signal transmission line.

[0036] For the monitoring demand of the water conveying pipeline in actual application, the first problem to be solved is the measurement accuracy of the pipeline inner diameter. Although the measured water conveying pipeline usually has a large diameter, the deformation interval of the pipeline inner diameter is relatively fixed. Therefore, the measurement distance of the pull rope displacement sensor 1 is shortened by adding a lengthened steel wire rope with a fixed interval, so that the absolute accuracy can be improved without changing the linearity. Through the monitoring and early warning system, the multiple sections and multiple dimensions of the metal water conveying pipeline 5 can be synchronously monitored, and real-time early warning can be performed during the grouting of the pipeline outer wall.

[0037] When the monitoring and early warning system needs to be arranged on the inner wall of the metal water conveying pipeline 5, first, the pull rope displacement sensor 1 is attached to one of the X, Y axes and the 45-degree angle on the inner wall of the metal water conveying pipeline 5 through the second magnet block 8 at the bottom of the mounting plate 7. Then, the locking buckle 4 at one end of the lengthened steel wire rope 2 is attached to the inner wall of the metal water conveying pipeline 5 opposite the wire port 9 through the first magnet block 6, so that the lengthened steel wire rope 2 and the measuring steel wire rope 11 are straightened through the pull rope displacement sensor 1 and the locking buckle 4 fixed on the inner wall of the metal water conveying pipeline 5. Then, the remaining pull rope displacement sensors 1 and locking buckles 4 are fixed on the other two angles inside the metal water conveying pipeline 5 according to the above steps, so that the arrangement of the real-time monitoring and early warning system for the pipeline inner diameter is completed. At this time, the pull rope displacement sensor 1 can be connected with the control cabinet arranged outside through the signal transmission line at one end of the signal transmission connector 3. Meanwhile, the multiple signal transmission lines located inside the metal water conveying pipeline 5 can be supported by corresponding wire supports, so that the signals monitored by the pull rope displacement sensor 1 can be stably transmitted to the control cabinet through the signal transmission line.

[0038] The pull rope displacement sensor 1 converts the linear displacement of the measured object into a rotation angle value, and then converts the rotation angle into a change in electrical signal resistance value through a rotary potentiometer. Then, the change is converted into a voltage change through power supply voltage division, and then a standard transmitter signal is output through further amplification board transmission processing.

[0039] The monitoring and early warning system shortens the measurement range by adding the extension steel wire 2, from 4 meters to 10 mm measurement range, and the subsequent amplification circuit only needs to amplify the 3990-4000 mm segment, which can realize high-precision 0.01 mm (10 um) measurement of the pipe diameter deformation. Since the extension steel wire 2 and the measurement steel wire 11 are the same steel wire separated by the separation piece 10, the extension steel wire 2 and the measurement steel wire 11 are fixed in the inner wall of the metal water conveying pipe 5 by the locking buckle 4, which can avoid the problem of inaccurate measurement caused by the sliding between the extension steel wire 2, the measurement steel wire 11 and the locking buckle 4 during measurement, avoid the measurement deviation caused by the sliding of the measured object during measurement, and improve the pipe diameter deformation measurement accuracy.

[0040] Through the implementation of the technology, the deformation of the pipeline in the key process can be effectively controlled in real time, and the original experience-based and eye-observed grouting method is changed to automatic grouting and real-time early warning, so that the grouting process is efficient and safe, thereby speeding up the overall project progress and saving project cost.

[0041] The extension steel wire 2 of the pull rope type displacement sensor 1 adopts a direct buckle locking method to avoid the risk of deviation caused by the sliding of the pull ring. In the embodiment, the 3.9-meter-long extension steel wire 2 effectively shortens the measurement range of the pull rope type displacement sensor 1, from 4000 mm to 10 mm measurement range. The 0.02% full-scale accuracy linear error range allows the sensor to achieve 0.002 mm measurement accuracy.

[0042] Since the field implementation of monitoring and measurement pays more attention to the deformation of the metal water conveying pipe 5, the monitoring and early warning system can perform a calibration operation after the pull rope type displacement sensor 1 is installed in place, eliminating the measurement deviation introduced by the field installation position. Real-time monitoring can be based on the calibrated data for real-time monitoring, so that the monitoring data is more intuitive and accurate. When a large pipe deformation deviation occurs during the grouting process, the control cabinet will directly output an alarm signal to shut down the grouting motor pump, thereby ensuring the safety of the pipeline and the construction personnel. After troubleshooting, the grouting system and the real-time monitoring and early warning system can be started again.

[0043] Working principle: when the monitoring and early warning system needs to be laid on the inner wall of the metal water conveying pipeline 5, first, the pull rope type displacement sensor 1 is attached to one of the three angles of X, Y axis and 45 degree angle on the inner wall of the metal water conveying pipeline 5 through the second magnet block 8 at the bottom of the mounting plate 7, then the locking buckle 4 at one end of the extension steel wire rope 2 is attached to the inner wall of the metal water conveying pipeline 5 opposite to the wire port 9 through the first magnet block 6, so that the extension steel wire rope 2 and the measuring steel wire rope 11 are straightened through the pull rope type displacement sensor 1 and the locking buckle 4 fixed on the inner wall of the metal water conveying pipeline 5, then the remaining pull rope type displacement sensors 1 and locking buckles 4 are fixed on the other two angles inside the metal water conveying pipeline 5 according to the above steps, so that the laying of the real-time monitoring and early warning system of the pipeline inner diameter is completed, at this time, the pull rope type displacement sensor 1 can be connected with the control cabinet arranged outside through the signal transmission line at one end of the signal transmission connector 3, and the multiple signal transmission lines located inside the metal water conveying pipeline 5 can be supported by the corresponding wire support.

[0044] The monitoring and early warning system shortens the measurement range by adding the extension steel wire rope 2, from 4 meters to 10mm measurement range, and the subsequent amplification circuit only needs to amplify the 3990-4000mm segment, so that the high-precision 0.01mm (10um) measurement of the pipeline inner diameter deformation can be realized.

[0045] Since the deformation of the metal water conveying pipeline 5 is more concerned during the on-site monitoring and measurement, the monitoring and early warning system can perform a calibration operation after the pull rope type displacement sensor 1 is installed in place each time, so as to eliminate the measurement deviation introduced by the on-site installation position. Real-time monitoring can be based on the calibrated data for real-time monitoring, so that the monitoring data is more intuitive and more accurate. When the pipeline deformation deviation is too large during the grouting process, the control cabinet will directly output an alarm signal to cut off the grouting motor pump, so as to ensure the safety of the pipeline and the construction personnel.

[0046] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A large-diameter water delivery pipe inner diameter real-time monitoring and early warning system, comprising a plurality of groups of pull-rope displacement sensors (1) arranged on the inner wall of a metal water delivery pipe (5), characterized in that, Each group of the pull rope type displacement sensor (1) is arranged on the X, Y axis and the 45-degree angle with the center of the inner diameter of the metal water pipeline (5) as the midpoint, the pull rope type displacement sensor (1) is provided with a wire port (9) on the outer wall, the wire port (9) is slidably connected with a measuring steel wire rope (11), one end of the measuring steel wire rope (11) is integrally formed with an extension steel wire rope (2), one end of the extension steel wire rope (2) is fixedly provided with a locking buckle (4), and the locking buckle (4) is arranged on the inner wall of the metal water pipeline (5).

2. The large-diameter water conveyance pipeline inner diameter real-time monitoring and early warning system according to claim 1, characterized in that, The top outer wall of the locking buckle (4) is fixedly provided with a first magnet block (6), and the first magnet block (6) is adsorbed on the inner wall of the metal water pipeline (5) by magnetic force.

3. The large-diameter water conveyance pipeline inner diameter real-time monitoring and early warning system according to claim 1, characterized in that, The bottom outer wall of the pull rope type displacement sensor (1) is fixedly provided with a mounting plate (7), and the bottom outer wall of the mounting plate (7) is fixedly provided with a plurality of second magnet blocks (8), and the second magnet blocks (8) are adsorbed on the inner wall of the metal water pipeline (5) by magnetic force.

4. The large-diameter water conveyance pipeline inner diameter real-time monitoring and early warning system according to claim 1, characterized in that, The outer wall of the measuring steel wire rope (11) and the extension steel wire rope (2) is fixedly provided with a partition piece (10).

5. The large-diameter water conveyance pipeline inner diameter real-time monitoring and early warning system according to claim 3, characterized in that, The outer wall of the pull rope type displacement sensor (1) is provided with a signal interface (12), and the signal interface (12) is inserted with a signal transmission connector (3).

6. The large-diameter water conveyance pipeline inner diameter real-time monitoring and early warning system according to claim 5, characterized in that, The signal transmission connector (3) is connected with a control cabinet through a signal transmission line, and the control cabinet is fixedly provided with a warning lamp, and the warning lamp is electrically connected with the control cabinet.

7. The large-diameter water conveyance pipeline inner diameter real-time monitoring and early warning system according to claim 6, characterized in that, The control cabinet is electrically connected with a grouting motor pump relay through a signal transmission line.

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