A pressure monitoring device for a water supply network

Abstract

The utility model provides a kind of pressure monitoring device of water supply pipe network, it is related to pipe network monitoring technical field, comprising: one end of monitoring pipeline is installed on the fire hydrant to be monitored through pipe tooth joint;Pressure sensor is installed in the pipe wall of monitoring pipeline;Control box is installed in one side of monitoring pipeline, and is electrically connected with pressure sensor.Affirmative effect is that monitoring device is directly installed in fire hydrant port through pipe tooth joint, without pipeline drilling or water stop construction, completely avoid road excavation and resident water interruption problem;By controlling the opening and closing state of fire hydrant valve, the water pressure change of different leakage aperture can be simulated quickly, combined with the high-frequency sampling of pressure sensor, the leakage transient response data is acquired in real time.Single experiment time consumption is greatly reduced, and multiple scene repeated test is supported;The pressure data collected is realized remote wireless data return through control box, and water pressure fluctuation caused by valve opening and closing is accurately captured, to provide high-resolution input for pipe network leakage positioning algorithm.

Description

Technical Field

[0001] This utility model relates to the field of pipeline monitoring technology, and in particular to a pressure monitoring device for a water supply pipeline network. Background Technology

[0002] Municipal water supply networks are widely distributed and complex, requiring extensive exploration and excavation before pressure monitoring. Drilling holes in the pipes and installing pressure sensors is then necessary, resulting in high construction difficulty and cost. Furthermore, installation necessitates water outages and roadblocks near the installation points, causing significant inconvenience to nearby residents and businesses. Since water pipelines are buried underground, repeated experiments require repeated excavation of simulated leak locations, significantly impacting experimental efficiency. Existing equipment often cannot acquire pressure data at high frequencies during experiments, making it impossible to obtain accurate information on water pressure fluctuations. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a pressure monitoring device for a water supply network, comprising:

[0004] A monitoring pipeline, one end of which is installed on the fire hydrant to be monitored via a threaded connector;

[0005] A pressure sensor is installed on the wall of the monitoring pipeline;

[0006] The control box is installed on one side of the monitoring pipeline and is electrically connected to the pressure sensor.

[0007] Preferably, it also includes an exhaust valve, installed at the other end of the monitoring pipeline and electrically connected to the control box.

[0008] Preferably, the end of the monitoring pipeline where the exhaust valve is installed has a vertically upward bending section, and the exhaust valve is installed on the bending section.

[0009] Preferably, it also includes a quick connector, one end of which is connected to the threaded connector, and the other end of which is connected to one end of the monitoring pipe.

[0010] Preferably, the quick connector is provided with tightening nuts at both ends.

[0011] Preferably, a mounting bracket is fitted onto the monitoring pipeline, and the control box is mounted on one side of the monitoring pipeline via the mounting bracket.

[0012] Preferably, the mounting bracket includes:

[0013] A collar, which is fitted onto the monitoring pipeline;

[0014] A mounting plate is provided, and the control box is mounted on the mounting plate.

[0015] A connecting plate is perpendicular to the fixing plate, and both ends of the connecting plate are connected to the fixing plate and the collar, respectively.

[0016] Preferably, the outer contour of the collar is a regular polygon.

[0017] Preferably, the control box includes:

[0018] A waterproof box, the side of which is installed on one side of the monitoring pipeline;

[0019] The telemetry terminal is installed inside the waterproof box and is electrically connected to the pressure sensor.

[0020] The battery is located inside the waterproof box and is electrically connected to the telemetry terminal.

[0021] A GPS positioning unit is located on the top of the waterproof box and is electrically connected to the telemetry terminal.

[0022] A signal antenna is mounted on the top of the waterproof box and electrically connected to the telemetry terminal.

[0023] The above technical solution has the following advantages or beneficial effects:

[0024] 1. The monitoring device can be directly installed at the fire hydrant port through a pipe thread connector, without the need for pipe drilling or water outage construction, thus completely avoiding the problems of road excavation and water interruption for residents;

[0025] 2. By controlling the opening and closing status of fire hydrant valves (manually), water pressure changes of different leakage orifice diameters can be quickly simulated. Combined with high-frequency sampling (e.g., ≥100Hz) by pressure sensors, real-time transient response data of leakage can be obtained. The time required for a single experiment is significantly reduced, and repeated testing in multiple scenarios is supported.

[0026] 3. Built-in high-precision pressure sensor and control box. The collected pressure data is transmitted back remotely wirelessly through the control box, accurately capturing water pressure fluctuations caused by valve opening and closing, and providing high-resolution input for pipeline leakage location algorithms. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the exploded structure of a pressure monitoring device for a water supply network, which is a preferred embodiment of the present invention.

[0028] Figure 2 This is a schematic diagram of the monitoring pipeline in a preferred embodiment of the present invention. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The present invention is not limited to this embodiment; other embodiments that conform to the spirit of the present invention may also fall within its scope.

[0030] In a preferred embodiment of this utility model, based on the above-mentioned problems existing in the prior art, a pressure monitoring device for a water supply network is provided, such as... Figure 1 and Figure 2 As shown, it includes:

[0031] Monitoring pipe 1, one end of which is installed on the fire hydrant to be monitored via pipe thread connector 2;

[0032] Pressure sensor 3 is installed on the wall of monitoring pipe 1;

[0033] The control box 4 is installed on one side of the monitoring pipeline 1 and is electrically connected to the pressure sensor 3.

[0034] Specifically, the pressure monitoring device of this utility model is mainly designed based on urban fire hydrants, aiming to provide an efficient and convenient device for simulating and monitoring leaks in municipal water supply networks.

[0035] Fire hydrants along urban roads are typically located close to the main pipelines of the municipal water supply network, and their distribution density is relatively uniform (generally spaced about 200 meters apart, though the exact distance may vary depending on urban construction standards). This distribution characteristic makes fire hydrants ideal test points for simulating leaks.

[0036] The pressure monitoring device of this invention has the following advantages:

[0037] 1. Non-invasive installation reduces construction costs.

[0038] Taking advantage of the direct connection between fire hydrants and the main municipal water supply pipeline (evenly distributed at intervals of approximately 200 meters), the monitoring device is directly installed at the fire hydrant port via a pipe thread connector, eliminating the need for pipe drilling or water outage construction, thus completely avoiding road excavation and water supply interruptions for residents.

[0039] 2. Coordinated control of fire hydrant valves improves experimental efficiency.

[0040] By controlling the opening and closing of fire hydrant valves (manually), water pressure changes at different leakage orifice diameters can be quickly simulated. Combined with high-frequency sampling (e.g., ≥100Hz) from pressure sensors, real-time transient response data of the leakage can be obtained. The time required for a single experiment is significantly reduced, supporting repeated testing in multiple scenarios.

[0041] 3. High-frequency pressure data acquisition and remote transmission

[0042] It has a built-in high-precision pressure sensor and control box. The collected pressure data is transmitted back remotely wirelessly through the control box, accurately capturing water pressure fluctuations caused by valve opening and closing, and providing high-resolution input for pipeline leakage location algorithms.

[0043] Specifically, in this embodiment, the pipe thread connector 2 is a quick-connect fire hydrant pipe thread connector. This quick-connect fire hydrant pipe thread connector is the core component connecting the equipment to the fire hydrant, and its design fully considers ease of installation and reliable sealing. The thread of the connector is designed to perfectly match the groove of the fire hydrant outlet. During installation, simply align the thread with the groove, clamp the connector with a large wrench, and rotate to quickly complete the fixing. This design greatly simplifies the installation process and reduces operation time. A high-elasticity rubber gasket is embedded inside the connector, forming a tight seal between the connector and the fire hydrant outlet, effectively preventing water or gas leakage. The rubber gasket is made of corrosion-resistant and aging-resistant materials, capable of adapting to various complex environments and ensuring long-term reliability. This connector adopts a standardized design, adaptable to the outlet specifications of most urban fire hydrants, and has wide applicability.

[0044] In a preferred embodiment of this utility model, such as Figure 1 As shown, it also includes an exhaust valve 5, which is installed at the other end of the monitoring pipe 1 and connected to the control box 4.

[0045] In a preferred embodiment of the present invention, the end of the monitoring pipeline 1 where the exhaust valve 5 is installed is provided with a vertically upward bending portion 11, and the exhaust valve 5 is installed on the bending portion 11.

[0046] Specifically, municipal water supply networks may contain residual gas (such as air introduced during water supply restoration after a shutdown). If this gas remains in monitoring pipe 1, pressure fluctuations caused by valve opening and closing or leak simulations will be buffered by the gas's compressibility, leading to gas accumulation and distortion of pressure sensor readings. The vent valve, by continuously releasing gas from the monitoring pipe, maintains a full-pipe flow, ensuring a pure liquid phase water flow within the pipe. This allows pressure fluctuations to be fully transmitted to the sensor, preventing gas interference with the accuracy of pressure data acquisition and improving the sensitivity of leak detection.

[0047] The exhaust valve 5 is electrically connected to the control box 4, enabling remote opening and closing of the exhaust system. For example, it can automatically vent before a leak simulation experiment and close after the experiment, reducing the need for manual on-site intervention and adapting to unattended monitoring scenarios.

[0048] The air vent valve 5 is a crucial component ensuring the accuracy of experimental data, and its design prioritizes automation and durability. When the fire hydrant valve is opened and water flows into the pipeline, air inside the pipeline is expelled through the air vent valve, preventing air from interfering with pressure data. The air vent valve employs a float-type design, automatically sensing air in the pipeline and venting it without manual intervention. The air vent valve connects to the pipeline via a stainless steel quick-connect fitting, ensuring the vent port always remains vertically upward, improving venting efficiency. The air vent valve is primarily made of copper, possessing excellent corrosion resistance and high-temperature resistance, enabling stable operation for extended periods in humid and high-pressure environments.

[0049] The bending section 11 adopts a vertically upward bending structure, utilizing the property that gas density is lower than liquid density, allowing gas to naturally rise to the top of the bending section and concentrate there. The exhaust valve 5 is installed at the top of the bending section, which can directly and directionally exhaust gas from the gas accumulation area, avoiding local residue caused by gas dispersion.

[0050] The vertical bend 11 creates a physical height difference, so even if the exhaust valve 5 is briefly opened, the liquid in the pipe is unlikely to flow back to the exhaust valve outlet due to gravity, thus preventing liquid leakage from damaging the valve body or external equipment (such as the control box circuit).

[0051] Municipal fire hydrants may be located in narrow spaces such as the side of a road or a green belt. If necessary, the orientation of the bend 11 can be changed to flexibly adjust the installation direction of the exhaust valve, avoid surrounding obstacles (such as manhole covers and curbs), and improve the spatial adaptability of the device.

[0052] In a preferred embodiment of the present invention, a quick connector 6 is further included, one end of which is connected to the threaded connector 2, and the other end of which is connected to one end of the monitoring pipe 11.

[0053] In a preferred embodiment of this invention, the quick connector 6 is provided with tightening nuts at both ends.

[0054] Specifically, quick coupling 6 is a key component connecting monitoring pipe 1 and fire hydrant threaded connector 2, and its design emphasizes flexibility and durability. Both ends of quick coupling 6 feature a tightening nut design, supporting 360-degree rotation. Users can adjust the pipe's direction and angle according to site conditions, ensuring the equipment can adapt to different installation environments. The coupling is made of high-quality stainless steel, possessing high strength, corrosion resistance, and high-temperature resistance, enabling stable operation in humid and high-pressure environments for extended periods. The coupling also features an internal rubber sealing ring to ensure leak-free connection, further improving the overall sealing performance of the equipment.

[0055] In a preferred embodiment of the present invention, a mounting bracket 7 is fitted onto the monitoring pipeline 1, and the control box 4 is mounted on one side of the monitoring pipeline 1 via the mounting bracket 7.

[0056] In a preferred embodiment of this utility model, such as Figure 2 As shown, the mounting bracket 7 includes:

[0057] Loop 71, the loop is fitted onto monitoring pipe 1;

[0058] The control box 4 is mounted on the fixed plate 72.

[0059] The connecting plate 73 is perpendicular to the fixed plate 72, and its two ends are connected to the fixed plate 72 and the collar 71, respectively.

[0060] Specifically, in this embodiment, the monitoring pipe 1 for pressure leakage is the core functional component of the equipment, responsible for carrying water flow and monitoring pressure changes. A mounting bracket 7 (split or integrated) is integrated on the monitoring pipe 1 for fixing the control box 4. The mounting bracket 7 adopts a lightweight design, ensuring stability without increasing the overall weight of the equipment.

[0061] The monitoring pipeline 1 has a reserved installation interface for a pressure sensor, which can quickly install a high-precision pressure sensor and monitor the water pressure changes in the pipeline in real time.

[0062] Pressure sensor 3 is responsible for collecting water pressure data within the pipeline. Its voltage signal output quickly detects changes in water pressure and provides real-time feedback. It is fixed to the pipe wall using a threaded knob, ensuring a tight fit. The sensor's acquisition head and signal cable are integrated, significantly reducing corrosion from moisture during daily use. Its structure is relatively simple, requiring no additional main control chip, and its price is relatively low.

[0063] The monitoring pipeline 1 is made of high-strength engineering plastic, which is lightweight, corrosion-resistant, and has strong pressure resistance. It can withstand high water pressure and ensure the safety of the equipment in high-pressure environments.

[0064] In a preferred embodiment of this invention, the outer contour of the collar 71 is a regular polygon.

[0065] Specifically, the outer contour of the collar 71 is a regular polygon, forming the same outer contour as the nut, which can be used with a wrench to facilitate the monitoring of the pipe 1 and the installation of the mounting bracket 7.

[0066] In a preferred embodiment of this utility model, the control box 4 includes:

[0067] Waterproof box 41, the side of waterproof box 41 is installed on one side of monitoring pipe 1;

[0068] The telemetry terminal 42 is installed inside the waterproof box 41 and is electrically connected to the pressure sensor 3;

[0069] Battery 43 is located inside waterproof box 41 and is electrically connected to telemetry terminal 42;

[0070] GPS signal unit 44 is located on the top of waterproof box 41 and is electrically connected to telemetry terminal 42;

[0071] The signal antenna 45 is mounted on the top of the waterproof box 41 and is electrically connected to the telemetry terminal.

[0072] Specifically, control box 4 is the "brain" of the device, integrating data acquisition, transmission, and power supply functions. Its internal components include:

[0073] Battery 43: Featuring a quick-release charging and modular design, it supports rapid disassembly and replacement, ensuring power supply for extended operation. Its large capacity and long battery life make it suitable for fieldwork or long-duration operations.

[0074] Telemetry terminal 42: Responsible for receiving data from pressure sensor 3 and uploading the data to the platform via the 4G network. The terminal adopts a low-power design, which can work perfectly with the battery to extend the device's usage time.

[0075] The telemetry terminal 42 is equipped with a pressure sensor signal terminal for connecting to a pressure sensor and collecting water pressure data in real time. The control box 4 is also equipped with a signal antenna 45 (2 / 3 / 4 / 5G) and a GPS signal unit 44: the signal antenna 45 is used to transmit data to ensure that the data can be transmitted to the cloud platform in real time, and the GPS signal unit 44 is used to accurately locate the location of the leak simulation point for subsequent analysis and processing.

[0076] Waterproof case 41 case design:

[0077] A sheet of iron is attached to the top of the waterproof box 41 for magnetically fixing the GPS signal unit and signal antenna, which facilitates installation and disassembly and avoids messy wiring. The bottom of the waterproof box 41 has a signal wire hole 45 and is sealed (e.g., with a sealing gasket). The signal wires of the GPS signal unit, signal antenna, pressure sensor and exhaust valve are passed through the signal wire hole and connected to the telemetry terminal.

[0078] The telemetry terminal 42 is the core of the equipment's data processing and transmission, boasting powerful and intelligent functions. The terminal can acquire data from pressure sensors at high frequency, ensuring real-time data accuracy. Its built-in network unit transmits and receives signals via an antenna, uploading the acquired data to the platform in real time, supporting remote monitoring and management. The built-in GPS module, transmitted and received via GPS signal unit 44, can accurately locate the position of the leak simulation point, facilitating subsequent analysis and processing. The terminal uses a low-power chip, perfectly compatible with a quick-release rechargeable battery, extending the equipment's operating time.

[0079] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made using the content of this specification and illustrations should be included within the protection scope of the present utility model.

Claims

1. A pressure monitoring device for a water supply network, characterized in that, include: A monitoring pipeline, one end of which is installed on the fire hydrant to be monitored via a threaded connector; A pressure sensor is installed on the wall of the monitoring pipeline; The control box is installed on one side of the monitoring pipeline and is electrically connected to the pressure sensor.

2. The pressure monitoring device according to claim 1, characterized in that, It also includes an exhaust valve, which is installed at the other end of the monitoring pipeline and electrically connected to the control box.

3. The pressure monitoring device according to claim 2, characterized in that, The monitoring pipeline has a vertically upward bend at one end where the exhaust valve is installed, and the exhaust valve is installed on the bend.

4. The pressure monitoring device according to claim 1, characterized in that, It also includes a quick connector, one end of which is connected to the threaded connector, and the other end of which is connected to one end of the monitoring pipe.

5. The pressure monitoring device according to claim 4, characterized in that, The quick connector has tightening nuts at both ends.

6. The pressure monitoring device according to claim 1, characterized in that, The monitoring pipeline is fitted with a mounting bracket, and the control box is installed on one side of the monitoring pipeline via the mounting bracket.

7. The pressure monitoring device according to claim 6, characterized in that, The mounting bracket includes: A collar, which is fitted onto the monitoring pipeline; A mounting plate is provided, and the control box is mounted on the mounting plate. A connecting plate is perpendicular to the fixing plate, and both ends of the connecting plate are connected to the fixing plate and the collar, respectively.

8. The pressure monitoring device according to claim 7, characterized in that, The outer contour of the collar is a regular polygon.

9. The pressure monitoring device according to claim 1, characterized in that, The control box includes: A waterproof box, the side of which is installed on one side of the monitoring pipeline; The telemetry terminal is installed inside the waterproof box and is electrically connected to the pressure sensor. The battery is located inside the waterproof box and is electrically connected to the telemetry terminal. A GPS signal unit is located on the top of the waterproof box and is electrically connected to the telemetry terminal. A signal antenna is mounted on the top of the waterproof box and electrically connected to the telemetry terminal.

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