Sensor probes for piping detection

Abstract

The present invention discloses a sensor probe for pipe burst detection, comprising: a shell, the shell is a vertical ellipsoid structure, a cable interface is arranged on the central axis of the top end of the shell, and a counterweight rod is arranged on the central axis of the bottom end of the shell; a zero buoyancy cable is arranged on the top of the shell, and a sensor unit is installed on the shell for detecting and locating the position of the pipe burst; a control board, the control board is installed in the shell, and the cable interface control board is electrically connected to the cable interface and the sensor unit respectively. A vertical ellipsoid structure shell is adopted, and based on the "floating" principle, the counterweight rod at the bottom of the shell and the zero buoyancy cable at the top can keep the probe upright in the water and keep stability during detection, and the synergistic effect of multiple sensors in the sensor unit can greatly improve the detection accuracy and pipe burst positioning accuracy.

Description

Technical Field

[0001] The invention relates to the field of piping detection equipment, and in particular to a sensor probe used for piping detection. Background Art

[0002] The biggest hazard of flood disasters is dike breach, and the main reason for dike breach is that pipe bursts are not discovered in time. Since early micro-piping bursts are difficult to detect in time and their specific locations are difficult to determine, the countermeasures taken in the past were to mobilize a large number of manpower to conduct dragnet inspections day and night, or send divers to explore underwater. The progress is slow, the time is long, and the efficiency is low, and it is often difficult to control the development of dangerous situations in a timely and effective manner. How to quickly and accurately detect pipe bursts and other hidden dangers in dikes has always been an important issue in flood prevention and rescue.

[0003] Manual inspection of pipe bursts is time-consuming, laborious and difficult to detect. Currently, the main method used is to detect the water inlet of the dam seepage pipe burst and find the location of the pipe burst. However, when encountering the harsh environment of flood disasters, the sensor probe of the existing dam pipe burst leakage detector is easy to tilt underwater with fast water flow, resulting in poor pipe burst positioning accuracy and low detection accuracy. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a sensor probe for pipe burst detection, which can solve the problems of poor pipe burst positioning accuracy and low detection accuracy of the existing sensor probe.

[0005] According to an embodiment of the present invention, a sensor probe used for pipe burst detection includes: a shell, which is a vertical ellipsoid structure, a cable interface is arranged on the central axis of the top end of the shell, and a counterweight rod is arranged on the central axis of the bottom end of the shell; a cable, one end of the cable is connected to the cable interface, and the other end of the cable is used to connect to a dam pipe burst leakage detector; a sensor unit, the sensor unit is installed on the shell for detecting and locating the pipe burst position; a control board, the control board is installed in the shell, and the control board is electrically connected to the cable interface and the sensor unit respectively.

[0006] The sensor probe used for pipe burst detection according to the embodiment of the present invention has at least the following technical effects: the embodiment of the present invention adopts a vertical ellipsoidal structure shell, based on the "float" principle, so that the probe can remain upright in the water, and the counterweight rod at the bottom of the shell is used to prevent the probe from tilting, thereby maintaining stability during detection, thereby improving detection accuracy and pipe burst positioning accuracy.

[0007] According to some embodiments of the present invention, the cable is a zero-buoyancy cable, and a communication line, a power line and a signal line are arranged in the zero-buoyancy cable.

[0008] According to some embodiments of the present invention, the sensor unit includes a scanning sonar imaging transducer, an underwater positioning acoustic transmitter and a three-component pipe surge current abnormal field measurement metal unit, the underwater positioning acoustic transmitter and the three-component pipe surge current abnormal field measurement metal unit are installed on the shell, and the scanning sonar imaging transducer is installed at the bottom of the counterweight rod.

[0009] According to some embodiments of the present invention, the three-component pipe surge current abnormal field measurement metal unit includes two X-component pipe surge current abnormal field measurement metal sheets, two Y-component pipe surge current abnormal field measurement metal sheets and two Z-component pipe surge current abnormal field measurement metal rings, which are respectively electrically connected to the control board; the two X-component pipe surge current abnormal field measurement metal sheets are respectively installed at the front end and the rear end in the middle of the shell, the two Y-component pipe surge current abnormal field measurement metal sheets are respectively installed on the two side surfaces in the middle of the shell, and the two Z-component pipe surge current abnormal field measurement metal rings are respectively installed at the top end and the bottom end of the shell.

[0010] According to some embodiments of the present invention, the sensor unit further comprises a water depth measurement sensor disposed on the housing.

[0011] According to some embodiments of the present invention, the sensor unit further comprises a water temperature measurement sensor disposed on the housing.

[0012] According to some embodiments of the present invention, a light-driven fish-repelling device is further included on the housing, and the light-driven fish-repelling device is electrically connected to the control panel.

[0013] According to some embodiments of the present invention, the sensor unit further comprises an ultrasonic bottoming detector disposed at a lower end of the housing, and the ultrasonic bottoming detector is electrically connected to the control board.

[0014] According to some embodiments of the present invention, the cable, the cable interface and the counterweight rod are all located on the same axis.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a front view of a sensor probe according to an embodiment of the present invention;

[0018] Figure 2 is a side view of a sensor probe according to an embodiment of the present invention;

[0019] Figure 3 4 is a principle block diagram of a sensor probe in an embodiment of the present invention.

[0020] Reference Numbers

[0021] Shell 100, counterweight rod 110, cable 200, scanning sonar imaging transducer 300, underwater positioning acoustic transmitter 400, three-component pipe surge current abnormal field measurement metal unit 500, X-component pipe surge current abnormal field measurement metal sheet 510, Y-component pipe surge current abnormal field measurement metal sheet 520, Z-component pipe surge current abnormal field measurement metal ring 530, water depth measurement sensor 600, light fish driving device 700, ultrasonic bottom contact detector 800. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the invention.

[0024] In the description of the invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of the first or the second, it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] refer to Figure 1A sensor probe for pipe burst detection includes: a shell 100, a cable 200, a sensor unit and a control board. The shell 100 is a vertical ellipsoid structure, the control board is installed in the shell 100, and a plurality of sensor installation holes are opened on the shell 100. The sensor unit mainly includes a three-component pipe burst current abnormal field measurement metal unit 500, a scanning sonar imaging transducer 300, and an underwater positioning acoustic transmitter 400. The three-component pipe burst current abnormal field measurement metal unit 500, the scanning sonar imaging transducer 300, and the underwater positioning acoustic transmitter 400 are all installed on the shell 100. The ellipsoid structure with small ends and large middle can keep the probe stable in the water. A cable interface is provided on the central axis of the top of the shell 100 to connect the cable 200. A counterweight rod 110 is provided on the central axis of the bottom of the shell 100. In this embodiment, the counterweight rod 110 adopts a stainless steel rod. The stainless steel rod is used for counterweighting, so that the shell 100 can sink steadily and can remain upright and stable even in flood areas with rapid water flow. In this embodiment, the cable 200 is a zero-buoyancy cable, including a communication line, a power line and a signal line. Using the zero-buoyancy cable as an umbilical line can further improve the upright stability of the housing 100 in water.

[0027] The existing sensor probe of the dam piping leakage detector is only equipped with a pair of metal sheets, which uses a single-component method to sense the current signal in the water to analyze and determine whether there is piping, but this single-component detection method has low detection accuracy. Figure 1 and Figure 2 In this embodiment, a three-component pipe surge current abnormal field measurement metal unit 500 is used for pipe surge detection, which includes two X-component pipe surge current abnormal field measurement metal sheets 510, two Y-component pipe surge current abnormal field measurement metal sheets 520 and two Z-component pipe surge current abnormal field measurement metal rings 530; the two X-component pipe surge current abnormal field measurement metal sheets 510 are respectively installed at the front end and the rear end in the middle of the shell 100, the two Y-component pipe surge current abnormal field measurement metal sheets 520 are respectively installed at the left end and the right end in the middle of the shell 100, and the two Z-component pipe surge current abnormal field measurement metal rings 530 are respectively installed at the top end and the bottom end of the shell 100. Of course, a two-component, four-component or more-component detection device can also be used.

[0028] The working principle of the three-component pipe surge current abnormal field measurement metal ring is: the transmitter forms a current loop through the aluminum sheet electrodes on the water-facing surface and the outlet, and transmits a pseudo-random current signal into the water area. Each pair of measurement components of the probe has a pair of metal rings (or metal sheets) to sense the current signal in the water. The sensed differential signal enters the acquisition system through the control board and cable 200 for collection and analysis. Compared with the single-component detection device, it can greatly improve the detection accuracy.

[0029] The scanning sonar imaging transducer 300 is installed at the bottom of the counterweight rod 110, so that the sensor probe has a 360° scanning sonar imaging function; the underwater positioning acoustic transmitter 400 is installed at the upper end of the shell 100, so that the sensor probe has an underwater positioning function. The underwater positioning and scanning imaging functions can facilitate patrol personnel to quickly find the location of the pipe burst and improve the accuracy of pipe burst positioning.

[0030] refer to Figure 1 In order to improve the functionality of the sensor probe, the shell 100 is also provided with a water depth measurement sensor 600, a water temperature measurement sensor, a light fish driving device 700 and an ultrasonic bottom detector 800, wherein the water depth measurement sensor 600 and the water temperature measurement sensor are integrated together and installed on the shell 100 above the front-end X-component pipe surge current abnormal field measurement metal sheet 510, four light fish driving devices 700 are used and evenly distributed in the lower half of the shell 100, and the ultrasonic bottom detector 800 is located at the bottom of the shell 100. The water depth measurement sensor 600 provides a water depth detection function, which is convenient for locating the depth of the pipe surge, and a water bath at a known depth can avoid bottoming; the water temperature measurement sensor provides a water temperature detection function. The water temperature at the pipe surge entrance will be different from the water temperature in other areas. Therefore, the water temperature measurement sensor can also be used to assist in finding the pipe surge entrance and improve the detection accuracy.

[0031] The light fish-repelling device 700 disperses the organisms in the water through light to avoid interference during detection. The ultrasonic bottom-touching detector 800 can provide a bottom-touching monitoring and early warning function to avoid touching the bottom of the riverbed. Anti-bottoming is to prevent data jumping, because once the bottom is touched, the detection data will change greatly, which can be easily mistaken for a pipe burst anomaly. Therefore, the ultrasonic bottom-touching detector 800 can indirectly ensure the measurement accuracy and avoid misjudgment.

[0032] refer to Figure 3 The control panel is electrically connected to the three-component pipe burst current abnormal field measurement metal unit 500, the scanning sonar imaging transducer 300, the underwater positioning acoustic transmitter 400, the water depth measurement sensor 600, the water temperature measurement sensor, the light fish driving device 700 and the ultrasonic bottom detector 800, and then connected to the cable 200 through the cable interface. The collected data is fed back to the dam pipe burst leakage detector through the cable 200 for analysis to find the pipe burst location.

[0033] In order to further improve the stability in water, the cable 200, cable interface, underwater positioning acoustic transmitter 400, counterweight rod 110, X-component pipe surge current abnormal field measurement metal sheet 510, scanning sonar imaging transducer 300, water depth measurement sensor 600, water temperature measurement sensor and ultrasonic bottom detector 800 are all located on the same axis.

[0034] The mounting holes and gaps of the housing 100 are sealed with sealant to prevent water seepage. At the same time, a leakage alarm device is also provided inside, which will immediately alarm once water enters. The water seepage position can be repaired to avoid damage to the control board and other circuits.

[0035] The embodiment of the present invention adopts a vertical ellipsoid structure shell 100. Based on the "floating" principle, the probe can be kept upright in the water. The counterweight rod 110 at the bottom of the shell 100 prevents the probe from tilting and maintains stability during detection. The zero buoyancy cable at the top of the shell 100 can also further ensure the stability of the sensor probe in the water. The shell 100 is equipped with a variety of sensors including a three-component pipe surge current abnormal field measurement metal unit 500, a scanning sonar imaging transducer 300, an underwater positioning acoustic transmitter 400, a water depth measurement sensor 600, a water temperature measurement sensor, a light fish driving device 700 and an ultrasonic bottom contact detector 800. Through the synergistic effect of multiple sensors, the detection accuracy and positioning accuracy are greatly improved, and the pipe surge entrance can be found quickly and accurately.

[0036] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A sensor probe for pipe burst detection, characterized in that: include: A shell (100), the shell (100) being a vertical ellipsoid structure, a cable interface being arranged on the central axis of the top end of the shell (100), and a counterweight rod (110) being arranged on the central axis of the bottom end of the shell (100); A cable (200), one end of the cable (200) being connected to the cable interface, and the other end of the cable being used to connect to a dam piping leakage detector; A sensor unit, the sensor unit being mounted on the housing (100) and used for detecting and locating a piping position; A control panel, the control panel being installed in the housing (100), the control panel being electrically connected to the cable interface and the sensor unit respectively; The cable (200) is a zero-buoyancy cable, in which a communication line, a power line and a signal line are arranged; The sensor unit comprises a scanning sonar imaging transducer (300), an underwater positioning acoustic transmitter (400) and a three-component pipe surge current abnormal field measurement metal unit (500); the underwater positioning acoustic transmitter (400) and the three-component pipe surge current abnormal field measurement metal unit (500) are mounted on the housing (100), and the scanning sonar imaging transducer (300) is mounted on the bottom of the counterweight rod (110); The three-component pipe surge current abnormal field measurement metal unit comprises two X-component pipe surge current abnormal field measurement metal sheets (510), two Y-component pipe surge current abnormal field measurement metal sheets (520), and two Z-component pipe surge current abnormal field measurement metal rings (530) which are respectively electrically connected to a control board; the two X-component pipe surge current abnormal field measurement metal sheets (510) are respectively mounted at the front end and the rear end in the middle of a housing (100), the two Y-component pipe surge current abnormal field measurement metal sheets (520) are respectively mounted at two side surfaces in the middle of the housing (100), and the two Z-component pipe surge current abnormal field measurement metal rings (530) are respectively mounted at the top end and the bottom end of the housing (100).

2. The sensor probe for pipe burst detection according to claim 1, characterized in that: The sensor unit further comprises a water depth measurement sensor (600) arranged on the housing (100).

3. The sensor probe for pipe burst detection according to claim 1, characterized in that: The sensor unit further comprises a water temperature measuring sensor arranged on the housing (100).

4. The sensor probe for pipe burst detection according to claim 1, characterized in that: It also includes a light-driven fish-driving device (700) arranged on the housing (100), and the light-driven fish-driving device (700) is electrically connected to the control panel.

5. The sensor probe for pipe burst detection according to claim 1, characterized in that: The sensor unit further comprises an ultrasonic bottoming detector (800) arranged at the lower end of the housing (100), and the ultrasonic bottoming detector (800) is electrically connected to the control board.

6. The sensor probe for pipe burst detection according to claim 1, characterized in that: The cable interface, the housing (100) and the counterweight rod (110) are all located on the same axis.

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