Pressure regulating device with leakage positioning function for water supply network

Abstract

The utility model belongs to the technical field of city water supply pipe network, provide with the pressure regulating device of water supply pipe network leakage positioning function, including valve body one and valve body two, be equipped with water delivery pipeline between valve body one and valve body two, the inner wall fixed mounting of valve body one and valve body two has the seal casing that distributes up and down, valve body one and valve body two and located seal casing inside installation have vibration sensor and pressure sensor, the outer wall of valve body one and valve body two is equipped with the analysis transmission module of external power supply;Still include pressure regulating module, and pressure regulating module is by the eccentric butterfly valve of displacement and the actuator that drives its movement, and pressure regulating module is used for changing the pipeline flow area;The utility model is in the implementation pressure regulation, automatically captures and analyzes the pipeline vibration signal of the pressure reduction period, realizes the synchronous execution of pressure regulating operation and leakage detection, improves the leakage point positioning efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of urban water supply network technology, specifically a pressure regulating device with water supply network leakage location function. Background Technology

[0002] Currently, water supply networks generally use pressure reducing valves, pressure stabilizing tanks and other devices to regulate pipeline pressure in order to reduce the risk of pipe bursts and background leakage at night when the flow rate is at its minimum. At the same time, pipeline leakage detection mainly relies on manual inspections, sonic leak detectors and other equipment. These detection devices need to be operated by professionals or deployed at pipeline exposure points and operate independently from the pressure regulating system.

[0003] When the pipeline enters a low flow period, the pressure regulating device actively reduces the pipeline pressure to reduce leakage. This period is the best window for the acoustic method to detect leaks. However, existing independent leak detection equipment cannot respond to pressure regulation operations in real time, and manual inspections cannot cover all weather conditions, resulting in the systematic omission of the leakage characteristic acoustic signals generated during pressure reduction. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a pressure regulating device with a water supply network leakage location function, thereby solving the problem of low leakage point identification efficiency caused by the lack of coordination between pressure regulation and leak detection in the prior art.

[0005] A pressure regulating device with water supply network leakage location function includes valve body one and valve body two. A water supply pipeline is provided between valve body one and valve body two. Sealing shells distributed vertically are fixedly installed on the inner walls of valve body one and valve body two. Vibration sensors and pressure sensors with built-in positioning chips are installed in valve body one and valve body two inside the sealing shells. An analysis and transmission module with an external power supply is provided on the outer walls of valve body one and valve body two.

[0006] It also includes a pressure regulating module, which consists of a displacement-capable eccentric butterfly valve and an actuator that drives its movement. The pressure regulating module is used to change the flow area of ​​the pipeline.

[0007] The sealing housing is rigidly and symmetrically installed on the inner walls of valve body one and valve body two. The opposing surfaces of valve body one and valve body two have internal openings. The vibration sensor and pressure sensor are installed inside valve body one and valve body two, and the probes of the vibration sensor and pressure sensor are in direct contact with the medium flowing in the pipeline. The top of the inner end of the sealing housing and the top of the vibration sensor and pressure sensor are provided with magnetic suction components that attract each other.

[0008] The vibration sensor operates at a frequency of 20Hz to 2kHz and is a piezoelectric accelerometer.

[0009] Preferably, the two sealing housings have symmetrical mating grooves extending backward on their opposite side plates. The bottom of the sealing housing is provided with a sealing plate. The top of the sealing plate is provided with rubber sealing gaskets that are respectively in contact with the vibration sensor and the pressure sensor. The top of the sealing plate and on both sides of the rubber sealing gaskets are provided with guide plates that cooperate with the mating grooves.

[0010] Preferably, the guide plate and the side plate of the sealing housing are provided with opposing and interconnected limiting grooves. One end of the limiting groove passes through the sealing housing and faces the water flow direction. The vertical cross-sectional profile of the limiting groove is a horizontal "T" shape. The outside of the sealing housing is provided with a limiting plate, and the limiting plate cooperates with the limiting groove.

[0011] Preferably, the top of the valve body one and valve body two are provided with a waterproof housing, and the analysis transmission module is installed inside the waterproof housing.

[0012] Preferably, the actuator operates pneumatically, and the analysis and transmission module operates wirelessly.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention features two valve bodies, Valve One and Valve Two, with a water supply pipeline between them. Vibration and pressure sensors are installed inside Valve One and Valve Two, respectively. These sensors continuously collect vibration and pressure signals from the inlet and outlet of Valve One. When leakage occurs, the vibration and pressure signals change and are wirelessly transmitted to an analysis and transmission module. This module then controls a pressure regulation module to adjust the water flow within Valve One and Valve Two, creating favorable conditions for subsequent leak location or performing preliminary pressure control. The vibration data is then transmitted to external devices. Based on the positioning chip inside the vibration sensor, the location of the leak can be determined, achieving coordinated leak location and pressure regulation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the component structure of the pressure regulating device with water supply network leakage location function of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the valve body and analysis and transmission module of this utility model;

[0017] Figure 3 This is a cross-sectional view of the internal component structure of the valve body of this utility model;

[0018] Figure 4 This is a cross-sectional view of the internal components of the sealing shell of this utility model;

[0019] Figure 5 This is a structural disassembly diagram of the sealing shell and sealing plate of this utility model.

[0020] In the picture:

[0021] 1. Valve body one; 2. Valve body two; 3. Water supply pipeline; 4. Sealing housing; 5. Vibration sensor; 6. Pressure sensor; 7. Analysis and transmission module; 8. Magnetic suction component; 9. Mating groove; 10. Sealing plate; 11. Rubber sealing gasket; 12. Guide plate; 13. Limit groove; 14. Limit plate; 15. Waterproof housing; 16. Eccentric butterfly valve; 17. Actuator. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] As attached Figure 1 To be continued Figure 5 As shown:

[0024] Example 1: This utility model provides a pressure regulating device with a water supply network leakage location function, including valve body 1 and valve body 2. A water supply pipeline 3 is provided between valve body 1 and valve body 2. Sealing shells 4 distributed vertically are fixedly installed on the inner walls of valve body 1 and valve body 2. Vibration sensor 5 and pressure sensor 6 with built-in positioning chip are installed inside valve body 1 and valve body 2 and located inside the sealing shell 4. An analysis and transmission module 7 with an external power supply is provided on the outer walls of valve body 1 and valve body 2.

[0025] It also includes a pressure regulating module, which consists of an eccentric butterfly valve 16 that can be displaced and an actuator 17 that drives its movement. The pressure regulating module is used to change the flow area of ​​the pipeline.

[0026] It should be noted that, through the configuration of valve body 1 and valve body 2, a water supply pipeline 3 is installed between valve body 1 and valve body 2. Vibration sensor 5 and pressure sensor 6 are respectively installed inside valve body 1 and valve body 2. Vibration sensor 5 and pressure sensor 6 collect vibration and pressure signals from the water inlet of valve body 1 and the water outlet of valve body 2 in real time. When leakage occurs, the vibration and pressure signals change and are transmitted wirelessly to the analysis and transmission module 7. The analysis and transmission module 7 controls the pressure regulation module to adjust the water flow in valve body 1 and valve body 2, creating favorable conditions for subsequent leak location or performing preliminary pressure control. The vibration data is then transmitted to external equipment. Based on the positioning chip inside vibration sensor 5, the location of the leak can be determined, realizing the coordinated work of leak location and pressure regulation.

[0027] Specifically, the analysis and transmission module 7 compares the real-time pressure derivative of the pressure sensor 6 with the preset threshold and the energy increase of the vibration sensor 5 in the 20-500Hz frequency band to jointly determine the leakage event; after determination, it immediately outputs a PWM pulse to the pneumatic actuator 17 to drive the eccentric butterfly valve 16 to rotate to the preset opening degree, thereby reducing the pipeline pressure.

[0028] The vibration sensor 5 has a built-in GPS module for positioning, which records the latitude and longitude coordinates of the installation location or the pipeline node number. When abnormal vibration is detected, the analysis and transmission module 7 synchronously uploads the leak point coordinates and vibration signal to the monitoring platform, and determines the leak point location by combining the pipeline topology map.

[0029] In this embodiment, the sealing housing 4 is rigidly and symmetrically installed on the inner walls of valve body 1 and valve body 2. The opposing surfaces of valve body 1 and valve body 2 have internal openings. Vibration sensor 5 and pressure sensor 6 are installed inside valve body 1 and valve body 2, and the probes of vibration sensor 5 and pressure sensor 6 are in direct contact with the medium flowing in the pipeline. The top of the inner end of the sealing housing 4 and the top of vibration sensor 5 and pressure sensor 6 are provided with magnetic suction components 8 that attract each other.

[0030] It should be noted that the sealing housing 4 is rigidly installed on the inner wall of the valve body, ensuring the stability of the overall structure and effectively resisting water flow impact and vibration interference. The application of the magnetic suction component 8 makes the installation and removal of the vibration sensor 5 and the pressure sensor 6 in the sealing housing 4 convenient: during installation, they are automatically attracted into place by magnetic force, ensuring reliable contact. During maintenance, the sensors can be removed without damaging the sealing structure, improving the maintainability of the equipment.

[0031] In this embodiment, symmetrical mating grooves 9 extending backward are provided on the opposite side plates of the two sealing housings 4. A sealing plate 10 is provided at the bottom of the sealing housing 4. A rubber sealing gasket 11 that is in contact with the vibration sensor 5 and the pressure sensor 6 is provided at the top of the sealing plate 10. A guide plate 12 is provided at the top of the sealing plate 10 and on both sides of the rubber sealing gasket 11. The guide plate 12 and the mating groove 9 cooperate with each other.

[0032] It should be noted that the rubber sealing gasket 11 at the bottom of the sealing plate 10 fits tightly with the sensor, providing a reliable double sealing guarantee: on the one hand, it prevents external moisture from entering the sealed housing 4 and damaging the electronic components; on the other hand, it effectively buffers the direct impact of pipeline vibration on the sensor, improving the stability and lifespan of the sensor measurement.

[0033] The design of the guide plate 12 and the mating groove 9 of the side plate of the sealing housing 4 ensures the precise alignment and stability of the sealing plate 10 during installation, avoiding sealing failure or sensor displacement due to installation deviation. The modular design significantly simplifies the assembly process of internal components and improves assembly efficiency.

[0034] In this embodiment, the guide plate 12 and the side plate of the sealing housing 4 are provided with opposing and interconnected limiting grooves 13. One end of the limiting groove 13 penetrates the sealing housing 4 and faces the water flow direction. The vertical cross-sectional profile of the limiting groove 13 is a horizontal "T" shape. The outside of the sealing housing 4 is provided with a limiting plate 14, and the limiting plate 14 and the limiting groove 13 cooperate with each other.

[0035] It should be noted that the "T"-shaped limiting groove 13, together with the matching limiting insert 14, forms a stable mechanical locking structure, which effectively prevents the sealing plate 10 from loosening or displacement under long-term water flow impact or vibration, ensuring the long-lasting and reliable seal.

[0036] The limiting groove 13 penetrates the sealing housing 4 and its opening faces the direction of water flow. On the one hand, the limiting plate 14 can be tightly inserted into the limiting groove 13 under the impact of water flow. On the other hand, after the valve body 1 or valve body 2 is disassembled later, the limiting plate 14 can be easily inserted or pulled out for locking or unlocking operations, which greatly facilitates the on-site installation, commissioning and maintenance of the equipment.

[0037] In this embodiment, the top of valve body 1 and valve body 2 is provided with a waterproof housing 15, and the analysis and transmission module 7 is installed inside the waterproof housing 15.

[0038] It should be noted that the addition of an independent waterproof housing 15 to the top of the valve body provides better waterproof capability for the analysis and transmission module 7, and improves the long-term reliability and safety of the electronic components of the entire system under harsh operating conditions.

[0039] In this embodiment, the vibration sensor 5 operates at a frequency of 20Hz to 2kHz, and the vibration sensor 5 is a piezoelectric accelerometer.

[0040] It should be noted that the selected operating frequency of 20Hz to 2kHz is an optimization based on the typical vibration signal characteristics generated by water supply pipeline leakage. This frequency band can effectively cover the main leakage vibration spectrum generated by different pipe materials, pipe diameters and leakage orifice diameters, ensuring the sensitivity and specificity of the detection.

[0041] Employing a piezoelectric accelerometer, it features wide measurement bandwidth, high sensitivity, good linearity, robust structure, high temperature resistance, and excellent long-term stability. It is suitable for long-term, real-time monitoring of vibration signals caused by water leakage in buried or pipeline environments, ensuring the accuracy and reliability of monitoring data.

[0042] In this embodiment, the actuator 17 is operated pneumatically, and the analysis and transmission module 7 is operated wirelessly.

[0043] It should be noted that the actuator 17 adopts a pneumatic operation mode, which has the advantages of fast response speed, simple and reliable structure, and good explosion-proof performance. It is particularly suitable for driving the eccentric butterfly valve 16, which requires a large torque, to perform fast and reliable switching or regulating actions, so as to achieve precise and fast regulation of pipeline pressure.

[0044] The analysis and transmission module 7 uses wireless transmission, eliminating the complexity and cost of on-site wiring, and realizing the remote real-time transmission of monitoring data. This facilitates the centralized transmission of data to the cloud or monitoring center for analysis, processing, and alarms, thereby improving the intelligence and operational efficiency of water supply network management.

[0045] In the above embodiment, the vibration sensor 5 and pressure sensor 6 collect vibration and pressure signals in the pipeline in real time. The analysis and transmission module 7 receives the sensor signals and performs preprocessing and feature analysis, such as identifying abnormal vibration modes and pressure transients.

[0046] When a suspected leak is detected, the analysis and transmission module 7 can trigger the actuator 17 to drive the eccentric butterfly valve 16 to change its opening degree to regulate the pipeline pressure, such as reducing pressure to suppress leakage or creating conditions for the location method. At the same time, the analysis and transmission module 7 uploads the raw data or analysis results to the remote monitoring platform wirelessly. The monitoring platform uses the uploaded data in combination with the pipeline model to calculate the leak location. Maintenance personnel then conduct on-site inspection and repair based on the location information.

[0047] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A pressure regulating device with a water supply network leakage location function, characterized in that, include: A water supply pipeline (3) is provided between valve body one (1) and valve body two (2). Sealing shells (4) are fixedly installed on the inner walls of valve body one (1) and valve body two (2). Vibration sensor (5) and pressure sensor (6) with built-in positioning chip are installed inside valve body one (1) and valve body two (2). An analysis and transmission module (7) with external power supply is provided on the outer walls of valve body one (1) and valve body two (2). It also includes a pressure regulating module, which consists of a displacement eccentric butterfly valve (16) and an actuator (17) that drives its movement. The pressure regulating module is used to change the flow area of ​​the pipeline. The sealing housing (4) is rigidly and symmetrically installed on the inner walls of the valve body one (1) and the valve body two (2). The opposing surfaces of the valve body one (1) and the valve body two (2) are open. The vibration sensor (5) and the pressure sensor (6) are installed inside the valve body one (1) and the valve body two (2). The probes of the vibration sensor (5) and the pressure sensor (6) are in direct contact with the medium flowing in the pipeline. The top of the inner end of the sealing housing (4) and the top of the vibration sensor (5) and the pressure sensor (6) are provided with magnetic suction parts (8) that attract each other. The vibration sensor (5) operates at a frequency of 20Hz to 2kHz and is a piezoelectric accelerometer.

2. The pressure regulating device with water supply network leakage location function as described in claim 1, characterized in that: The two sealing housings (4) have symmetrical mating grooves (9) extending backward on their opposite side plates. The bottom of the sealing housing (4) is provided with a sealing plate (10). The top of the sealing plate (10) is provided with rubber sealing gaskets (11) that are respectively attached to the vibration sensor (5) and the pressure sensor (6). The top of the sealing plate (10) and on both sides of the rubber sealing gaskets (11) are provided with guide plates (12). The guide plates (12) cooperate with the mating grooves (9).

3. The pressure regulating device with water supply network leakage location function as described in claim 2, characterized in that: The guide plate (12) and the side plate of the sealing housing (4) are provided with opposing and interconnected limiting grooves (13). One end of the limiting groove (13) passes through the sealing housing (4) and faces the direction of water flow. The vertical cross-sectional profile of the limiting groove (13) is a horizontal "T" shape. The outside of the sealing housing (4) is provided with a limiting plate (14). The limiting plate (14) and the limiting groove (13) cooperate with each other.

4. The pressure regulating device with water supply network leakage location function as described in claim 1, characterized in that: The top of the valve body one (1) and the valve body two (2) are provided with a waterproof housing (15), and the analysis transmission module (7) is installed inside the waterproof housing (15).

5. The pressure regulating device with water supply network leakage location function as described in claim 1, characterized in that: The actuator (17) is pneumatically operated, and the analysis and transmission module (7) is wirelessly transmitted.

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