A pressurized pipeline leakage monitoring device

Abstract

This utility model relates to the field of pipeline monitoring, specifically disclosing a pressurized pipeline leakage monitoring device, including a shell and an internal module. The shell is cylindrical, with an antenna, pull ring, and switch at the top. The internal module has a detector at the bottom, a lithium battery at the top, and symmetrical supports on the outer side of the bottom, each with screw holes. The lithium battery is electrically connected to both the signal processing module and the detector. Magnetic adsorption is used, allowing for easy installation in confined spaces without workers needing to descend into the manhole. The device can be easily installed on the outer wall of the pipeline from above using ropes, significantly improving installation efficiency and convenience. The overall size is small, facilitating installation and use in confined spaces. The shell is waterproof and corrosion-resistant, adapting to monitoring needs in various harsh environments.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline monitoring technology, and in particular relates to a pressurized pipeline leakage monitoring device. Background Technology

[0002] Pipeline transportation systems are widely used in water supply and other fields. Pipeline leaks can lead to resource waste and even safety accidents. Existing pipeline leak monitoring equipment suffers from problems such as large size, complex installation, and poor adaptability, making it difficult to meet the needs of different pipe diameters and installation environments. Especially for pressurized pipelines, traditional monitoring equipment often cannot be stably fixed, affecting signal acquisition accuracy; the monitoring distance is limited, failing to meet the requirements of different pipe diameters; it is greatly affected by pipe materials, resulting in unstable signal quality; and the installation method is limited, with poor adaptability. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a pressurized pipeline leakage monitoring device to solve the problems of complex installation and poor adaptability in the existing technology, and to solve the problems in the background technology.

[0004] This invention provides the following technical solution:

[0005] A pressurized pipeline leakage monitoring device includes an outer shell and an internal module, characterized in that: the outer shell is a cylindrical shell with an antenna, a pull ring, and a switch on the top; the internal module has a detector at the bottom, a lithium battery at the top, and symmetrical brackets on the outer side of the bottom, with bracket screw holes on the brackets; the lithium battery is electrically connected to the signal processing module and the detector respectively.

[0006] The detector is an acoustic sensor array containing 3-6 highly sensitive piezoelectric sensors, arranged in a ring.

[0007] The bracket consists of two symmetrically arranged brackets, each with three bracket screw holes for fixing with anti-loosening screws.

[0008] The signal processing module includes a signal amplification circuit, a filtering circuit, an analog-to-digital converter, a microprocessor, and a wireless communication module.

[0009] The outer shell is made of corrosion-resistant metal material, with a diameter of 40-80mm, a height of 120-200mm, and a wall thickness of 2-5mm.

[0010] The outer casing is equipped with a magnet at the end away from the antenna, which allows it to be attracted to the outer wall of the detection pipe.

[0011] The switch is waterproof and has a protection rating of not less than IP67.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention discloses a pressurized pipeline leak monitoring device that uses magnetic adsorption. This allows for easy installation in confined spaces, without requiring personnel to descend into the pipe shaft. The device can be placed onto the outer wall of the pipeline from above using ropes or other means, significantly improving installation efficiency and convenience. Its compact size facilitates installation and use in confined spaces. The waterproof and corrosion-resistant casing adapts to monitoring needs in various harsh environmental conditions. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0017] Figure 3 This is a planar sectional view of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0020] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this invention.

[0021] Example:

[0022] refer to Figure 1-3 A pressurized pipeline leakage monitoring device includes a housing 1 and an internal module 10. The housing 1 is a cylindrical shell with an antenna 2, a pull ring 3, and a switch 4 on the top. The pull ring 3 is made of stainless steel and has a diameter of 4 cm. The internal module 10 has a detector 7 at the bottom, a lithium battery 6 at the top, and symmetrical brackets 8 on the outer side of the bottom. The brackets 8 have bracket screw holes 9. The lithium battery 6 is electrically connected to the signal processing module 5 and the detector 7 respectively.

[0023] The detector 7 is an acoustic sensor array containing 3-6 high-sensitivity piezoelectric sensors arranged in a ring. It employs piezoelectric ceramic sensors with a resonant frequency of 40kHz (such as the Murata MA40 series), with a sensitivity ≥-65dB. The six sensors are arranged in a ring at 60° intervals, with an axial spacing of 30mm, ensuring three-dimensional sound field coverage. In normal monitoring mode, the sensors alternately activate three adjacent sensors to form a triangular detection unit; in leak confirmation mode, the entire array operates simultaneously for sound source localization.

[0024] There are two brackets 8 arranged symmetrically, and each bracket 8 has three bracket screw holes 9 for fixing with anti-loosening screws.

[0025] The signal processing module 5 includes a signal amplification circuit, a filtering circuit, an analog-to-digital converter (ADC), a microprocessor, and a wireless communication module. The signal amplification circuit amplifies weak leakage signals with adjustable gain, up to a maximum gain of 60dB. The filtering circuit eliminates environmental noise interference, with a frequency range of 1kHz-50kHz. The ADC is a 24-bit converter that converts analog signals into digital signals. The microprocessor uses an ARM Cortex-M4 microprocessor for signal analysis and leakage identification. The wireless communication module is a LoRa wireless communication module (SX1276) with adjustable transmit power (5-20dBm) and a transmission distance of up to 5km, transmitting the processing results to the monitoring center.

[0026] The outer shell 1 is made of corrosion-resistant metal material, with a diameter of 40-80mm, a height of 120-200mm, and a wall thickness of 2-5mm.

[0027] A magnet is located at the end of the outer casing 1 furthest from the antenna 2, allowing it to adhere to the outer wall of the detection pipe. The magnet is a neodymium iron boron permanent magnet (N35-N52 grade) with a nickel-plated surface. Each magnet measures 20×20×10mm, has an attraction force ≥50N, and operates at temperatures from -40℃ to 80℃. Four to six magnets are evenly arranged circumferentially at the bottom of the outer casing, forming a ring array to ensure full contact with the outer wall of the pipe.

[0028] The switch 4 is waterproof, with a protection rating of at least IP67. Switch 4 is used to control the start and stop of the monitoring equipment. Switch 4 is a push-button spring switch, and the model can be either C&K KSC4 series or Omron B3F series. Operating temperature range: -20℃~60℃. Its dustproof and waterproof performance meets the requirements for long-term outdoor use.

[0029] The specific parameters of this monitoring equipment are shown in the table below:

[0030]

[0031]

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations; any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pressurized pipeline leakage monitoring device, comprising a housing (1) and an internal module (10), characterized in that: The outer casing (1) is provided with an antenna (2), a pull ring (3), and a switch (4) on the top; the inner module (10) is provided with a detector (7) at the bottom, a lithium battery (6) at the top, and a bracket (8) symmetrically arranged on the outer side of the bottom, with bracket screw holes (9) on the bracket (8); the lithium battery (6) is electrically connected to the signal processing module (5) and the detector (7) respectively.

2. The pressurized pipeline leakage monitoring device according to claim 1, characterized in that, The detector (7) includes an array of multiple acoustic sensors.

3. The pressurized pipeline leakage monitoring device according to claim 1, characterized in that, There are two brackets (8) arranged symmetrically. Each bracket (8) has multiple bracket screw holes (9) and is fixed with anti-loosening screws.

4. The pressurized pipeline leakage monitoring device according to claim 1, characterized in that, The switch (4) has a waterproof rating higher than IP67.

5. The pressurized pipeline leakage monitoring device according to claim 1, characterized in that, The outer shell (1) is made of corrosion-resistant metal material.

6. The pressurized pipeline leakage monitoring device according to claim 1, characterized in that, The outer shell (1) is a cylindrical or prismatic structure.

7. The pressurized pipeline leakage monitoring device according to claim 1, characterized in that, The outer casing (1) has a magnet at the end away from the antenna, which can be attracted to the outer wall of the detection pipe.

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