Automatic pressure supplementing device for photovoltaic power supply rural water supply network

Abstract

The utility model relates to the technical field of rural water supply, and discloses a photovoltaic power supply rural water supply network automatic pressure supplementing device which is connected to a water outlet pipe of a water tank and comprises a pressure adjusting unit and a pressure detecting unit, and a one-way valve is arranged between the pressure adjusting unit and the water outlet pipe. The pressure detection unit comprises a detection pipe communicated with the water outlet pipe, a pressure sensor is arranged at the end of the detection pipe, and an elastic film is arranged on the front side of the pressure sensor; the pressure adjusting unit comprises a connecting pipe communicated with the water outlet pipe, the other end of the connecting pipe is connected with an adjusting pipe, the end, close to the connecting pipe, of the adjusting pipe is a reducing pipe, an adjusting assembly is installed in the adjusting pipe and comprises an adjusting piston and an adjusting driving part, and the adjusting driving part is electrically connected with the pressure sensor; a photovoltaic assembly is arranged on the top of the water tank and used for supplying power to the adjusting driving part. In practical application, the water supply stability of a rural water supply pipe network is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of rural water supply technology, specifically to a photovoltaic-powered automatic pressure replenishment device for rural water supply networks. Background Technology

[0002] Rural water supply systems are crucial infrastructure for ensuring the basic living needs of rural residents. However, compared to urban water supply systems, rural areas have a wider and more dispersed population, requiring water supply networks to cover a broader area. This not only increases the difficulty of network design and construction but also presents limitations in the actual operation of rural water supply systems.

[0003] In rural water supply networks, the distribution of water branches from the main pipeline to various residential areas is extremely uneven. Different branches connect to different residential areas at varying distances, resulting in significant differences in water pressure distribution across these branches. Residential areas closer to the main pipeline may have higher water pressure, while those farther away may have lower pressure. Furthermore, due to the complexity and dispersed nature of rural water supply networks, existing water pressure control systems struggle to effectively manage the entire network. Traditional water pressure regulating devices typically only function locally and cannot provide global adjustment. This uneven water pressure distribution makes it difficult to achieve unified water pressure control across the entire system, further exacerbating the problem of unstable water supply and impacting residents' daily lives. Utility Model Content

[0004] The present invention aims to provide an automatic pressure replenishment device for rural water supply networks powered by photovoltaic power, so as to improve the water supply stability of rural water supply networks.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: A photovoltaic-powered automatic pressure-replenishing device for rural water supply networks, connected to the outlet pipe of a water tank, includes a pressure regulating unit and a pressure detection unit arranged sequentially along the water flow direction, with a one-way valve between the pressure regulating unit and the outlet pipe; the pressure detection unit includes an L-shaped detection tube connected to the outlet pipe, with a pressure sensor at one end and an elastic diaphragm on the front side of the pressure sensor; the pressure regulating unit includes a connecting pipe connected to the outlet pipe, with a regulating pipe connected to the other end of the connecting pipe, the end of the regulating pipe near the connecting pipe being a tapered tube, and a regulating component installed inside the regulating pipe, the regulating component including a regulating piston and a regulating drive, the regulating drive being electrically connected to the pressure sensor, the regulating drive controlling the regulating piston to slide within the regulating pipe to regulate the pressure in the outlet pipe; a photovoltaic module is installed on the top of the water tank, the photovoltaic module being used to provide power to the regulating drive.

[0006] The principle and advantages of this scheme are:

[0007] 1. In practical applications, when the water pressure is sufficient, the water flow acts on the elastic diaphragm, causing it to bulge and deform, and then acts on the pressure sensor. This indicates that the water pressure is sufficient. When the water pressure is insufficient, the deformation of the elastic diaphragm decreases, and the water pressure cannot be transmitted to the pressure sensor through the elastic diaphragm. When the pressure sensed by the pressure sensor changes from present to absent, the pressure sensor converts the change signal and transmits it to the regulating drive unit, which drives the piston to move towards the outlet pipe, compressing the water flow space and increasing the water pressure. Furthermore, this device can be installed on each water branch to form a distributed water pressure control system. It can accurately adjust the pressure in the outlet pipe according to the actual water pressure of each branch, thereby ensuring that each water branch can obtain a stable and suitable water pressure and improving the overall water supply stability of the water supply network.

[0008] 2. The pressure replenishment device in this solution achieves automated operation, reduces manual intervention, and lowers the workload and technical requirements of daily maintenance. It can maintain good operating condition even in the absence of professional technical support. Moreover, the overall structure of the device is compact, easy to install and maintain, and can be flexibly arranged in different locations according to actual conditions without the need for large-scale modification of the existing pipeline network.

[0009] 3. Utilizing the photovoltaic modules on top of the water tank to power the regulating drive unit not only reduces dependence on external power sources but also lowers energy consumption, meeting environmental protection requirements. Compared to traditional electric drive methods, photovoltaic power supply significantly reduces long-term operating electricity costs, making it particularly suitable for rural areas with limited funds.

[0010] 4. This solution includes a check valve between the pressure regulating unit and the outlet pipe. The check valve prevents water from flowing back and impacting the pressure regulating unit when the piston retracts, thus extending the service life of the equipment.

[0011] Furthermore, a switch valve is provided at the end of the detection tube near the outlet pipe, and a detachable end cap is provided at the end of the detection tube.

[0012] Furthermore, the adjustment drive unit is a drive cylinder, and the output shaft of the drive cylinder is connected to the adjustment piston.

[0013] Furthermore, the adjustment drive unit is a drive motor, the output shaft of the drive motor is connected to a screw, the outer circumference of the screw is threaded with a transmission plate, and a transmission rod is provided between the transmission plate and the adjustment piston.

[0014] Furthermore, a buffer plate is provided between the pressure sensor and the elastic diaphragm, and a spring is installed on the side of the buffer plate facing the pressure sensor, with the other end of the spring fixed to the end cap.

[0015] Furthermore, the photovoltaic module includes a solar panel, a battery, and an adjustment bracket. The electrical energy generated by the solar panel is stored in the battery, which is used to provide power to the adjustment drive unit. The adjustment bracket is used to adjust the tilt angle of the solar panel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the pressure replenishment device in conjunction with the water tank.

[0017] Figure 2 Schematic diagram of the pressure replenishment device Figure 1 (Includes a drive motor)

[0018] Figure 3 Schematic diagram of the pressure replenishment device Figure 2 (Includes a drive cylinder)

[0019] Figure 4 This is a schematic diagram of a photovoltaic module. Detailed Implementation

[0020] The following detailed description illustrates the specific implementation method:

[0021] The reference numerals in the accompanying drawings include: water tank 100, water outlet pipe 200, pressure detection unit 1, detection pipe 11, elastic diaphragm 12, pressure sensor 13, buffer plate 14, spring 15, switch valve 16, end cap 17, pressure regulating unit 2, connecting pipe 21, regulating pipe 22, regulating piston 23, regulating drive unit 24, drive cylinder 241, drive motor 242, screw 243, transmission plate 244, transmission rod 245, limit plate 246, photovoltaic module 3, solar panel 31, regulating bracket 32, support rod 321, regulating rod 322, screw 323, and one-way valve 4.

[0022] The basic implementation examples are as follows: Figures 1-4 As shown: An automatic pressure boosting device for a photovoltaic-powered rural water supply network is connected to the outlet pipe 200 of a water tank 100. It includes a pressure regulating unit 2 and a pressure detection unit 1 arranged sequentially along the water flow direction. The distance between the pressure regulating unit 2 and the pressure detection unit 1 does not exceed 1m. A one-way valve 4 is provided between the pressure regulating unit 2 and the outlet pipe 200. The one-way valve 4 prevents the water flow from flowing backward and impacting the pressure regulating unit 2 when the piston retracts, thus extending the service life of the equipment.

[0023] Combination Figure 1 , Figure 2As shown, the pressure detection unit 1 includes an L-shaped detection tube 11 connected to the outlet pipe 200. A pressure sensor 13 is provided at one end of the detection tube 11, and an elastic diaphragm 12 is provided on the front side of the pressure sensor 13. A switch valve 16 is provided at one end of the detection tube 11 near the outlet pipe 200, and a detachable end cap 17 is provided at the other end of the detection tube 11. The end cap 17 is bolted to the detection tube 11. The detection tube 11 is designed in an L-shape to naturally guide the water flow through a curved path, reduce turbulence, make the water flow more stable, and help improve measurement accuracy. Moreover, the L-shaped structure can absorb and disperse pressure pulsations in the water flow to a certain extent, ensuring that the pressure signal transmitted to the pressure sensor 13 is more uniform and stable.

[0024] When the pressure detection unit 1 needs to be inspected, calibrated or repaired, the pressure detection unit 1 can be isolated by closing the switch valve 16 to ensure the safety of the operator and avoid affecting the normal operation of the entire water supply system. Secondly, the removable end cap facilitates regular cleaning of the inside of the detection tube 11 to prevent the accumulation of impurities from affecting the accuracy of the pressure sensor 13, and facilitates checking the condition of the elastic diaphragm 12 and repairing or replacing the elastic diaphragm 12 or the pressure sensor 13.

[0025] Combination Figure 2 As shown, a buffer plate 14 is provided between the pressure sensor 13 and the elastic diaphragm 12. A spring 15 is installed on the side of the buffer plate 14 facing the pressure sensor 13, and the other end of the spring 15 is fixed to the end cap. As an intermediate layer, the buffer plate 14 can effectively absorb and disperse the impact force caused by water pressure fluctuations, preventing it from directly acting on the pressure sensor 13, thereby extending its service life. Furthermore, through the action of the buffer plate 14, instantaneous high-pressure pulses and other irregular pressure changes can be filtered out, making the pressure signal transmitted to the pressure sensor 13 more stable, thus improving the accuracy and reliability of the measurement data. In addition, the spring 15 provides a certain preload, ensuring that the buffer plate 14 always maintains proper contact with the elastic diaphragm 12. When the water pressure returns to normal, the spring 15 can reset the buffer plate 14, ensuring that the system is always in the best working state, thus improving the reliability and stability of the system.

[0026] Combination Figure 1 , Figure 2 , Figure 3As shown, the pressure regulating unit 2 includes a connecting pipe 21 connected to the outlet pipe 200. The other end of the connecting pipe 21 is connected to a regulating pipe 22. The end of the regulating pipe 22 near the connecting pipe 21 is a tapered pipe. An regulating component is installed inside the regulating pipe 22. The regulating component includes a regulating piston 23 and a regulating drive unit 24. A sealing ring is fitted on the regulating piston 23 to ensure the sealing between the regulating piston 23 and the regulating pipe 22. The regulating drive unit 24 is connected to the pressure sensor 13 through a controller. The controller can be implemented using existing technologies such as Bluetooth, WiFi, or PLC, which will not be described in detail here. The pressure sensor 13 converts and transmits the sensed change signal to the controller. The controller sends a command to the regulating drive unit 24 according to the received signal. The regulating drive unit 24 controls the regulating piston 23 to slide inside the regulating pipe 22 to regulate the pressure inside the outlet pipe 200.

[0027] The adjustment drive unit 24 can be driven in various ways, including but not limited to motor drive and cylinder drive. If the adjustment drive unit 24 is a drive cylinder 241, the output shaft of the drive cylinder 241 is connected to the adjustment piston 23. If the adjustment drive unit 24 is a drive motor 242, the output shaft of the drive motor 242 is connected to a screw 243, the outer circumference of the screw 243 is threaded with a transmission plate 244, a transmission rod 245 is provided between the transmission plate 244 and the adjustment piston 23, and a limiting plate 246 is provided at the end of the screw 243 to limit the maximum distance of the transmission plate 244, so as to prevent excessive pressure from causing the water outlet pipe 200 to rupture.

[0028] Combination Figure 1 , Figure 4 As shown, a photovoltaic module 3 is provided on the top of the water tank 100. The photovoltaic module 3 includes a solar panel 31, a battery (not shown in the figure), and an adjustment bracket 32. The electrical energy generated by the solar panel 31 is stored in the battery, which is used to provide power to the adjustment drive unit 24. The adjustment bracket 32 ​​is used to adjust the tilt angle of the solar panel 31. The adjustment bracket 32 ​​includes a support rod 321 and an adjustment rod 322, both of which are hinged to the bottom of the solar panel 31. The other end of the support rod 321 is bolted to the top of the water tank 100, and the other end of the adjustment rod 322 is hinged to the support rod 321. The adjustment rod 322 includes a first support rod and a second support rod. The second support rod is hollow inside and sleeved on the outside of the first support rod. Multiple fixing holes are opened on the second support rod, and screws 323 are installed in the fixing holes to press against the surface of the first support rod to fix the tilt angle of the solar panel 31.

[0029] The electricity generated by the solar panel 31 is stored in the battery, ensuring that the regulating drive unit 24 can obtain a stable power supply even in the absence of sunlight or insufficient light, avoiding system shutdown due to insufficient power. It can also serve as a backup power source, continuing to supply power to the system at night or on cloudy days, greatly extending the continuous working time of the system and improving the reliability of the water supply system. In addition, the design of the regulating bracket 32 ​​allows the solar panel 31 to be flexibly adjusted according to the actual situation, making it as perpendicular to the sunlight as possible, thereby maximizing light energy absorption and improving power generation efficiency.

[0030] The specific operating principle of this embodiment is as follows: When the water pressure is sufficient, the water flow acts on the elastic membrane 12, causing it to bulge and deform towards the pressure sensor 13, squeezing the buffer plate 14. The buffer plate 14 is displaced under pressure and comes into contact with the pressure sensor 13, which is under pressure, indicating that the water pressure is sufficient. When the water pressure is insufficient, the deformation of the elastic membrane 12 decreases, and the water pressure cannot be transmitted to the pressure sensor 13 through the elastic membrane 12. When the pressure sensed by the pressure sensor 13 changes from present to absent, the pressure sensor 13 converts the sensed change signal and transmits it to the controller. The controller sends a command to the regulating drive unit 24 based on the received signal. The regulating drive unit 24 controls the regulating piston 23 to slide in the regulating tube to regulate the pressure in the water outlet pipe 200, thereby increasing the water supply pressure and ensuring a stable water supply.

[0031] The pressure boosting device in this solution can be installed on each water branch to form a distributed water pressure control system. It can precisely adjust the pressure within the outlet pipe 200 according to the actual water pressure of each branch, thereby ensuring that each water branch can obtain a stable and suitable water pressure and improving the overall water supply stability of the water supply network.

[0032] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An automatic pressure-replenishing device for photovoltaic-powered rural water supply networks, characterized in that: The water outlet pipe connected to the water tank includes a pressure regulating unit and a pressure detection unit arranged sequentially along the water flow direction. A one-way valve is provided between the pressure regulating unit and the water outlet pipe. The pressure detection unit includes an L-shaped detection tube connected to the water outlet pipe, with a pressure sensor at one end and an elastic diaphragm on the front side of the pressure sensor. The pressure regulating unit includes a connecting pipe connected to the water outlet pipe, with a regulating pipe connected to the other end of the connecting pipe. The regulating pipe is tapered at one end near the connecting pipe, and a regulating assembly is installed inside the regulating pipe. The regulating assembly includes a regulating piston and a regulating drive unit. The regulating drive unit is electrically connected to the pressure sensor and controls the regulating piston to slide within the regulating pipe to regulate the pressure in the water outlet pipe. A photovoltaic module is provided on the top of the water tank to provide power to the regulating drive unit.

2. The photovoltaic-powered automatic pressure replenishment device for rural water supply networks according to claim 1, characterized in that: A switch valve is provided at the end of the detection tube near the outlet pipe, and a detachable end cap is provided at the end of the detection tube.

3. The photovoltaic-powered automatic pressure replenishment device for rural water supply networks according to claim 2, characterized in that: The adjustment drive unit is a drive cylinder, and the output shaft of the drive cylinder is connected to the adjustment piston.

4. The photovoltaic-powered automatic pressure replenishment device for rural water supply networks according to claim 2, characterized in that: The adjustment drive unit is a drive motor. The output shaft of the drive motor is connected to a screw. A transmission plate is threadedly connected to the outer circumference of the screw. A transmission rod is provided between the transmission plate and the adjustment piston.

5. The photovoltaic-powered automatic pressure replenishment device for rural water supply networks according to any one of claims 1-4, characterized in that: A buffer plate is provided between the pressure sensor and the elastic diaphragm. A spring is installed on the side of the buffer plate facing the pressure sensor, and the other end of the spring is fixed to the end cap.

6. The automatic pressure replenishment device for photovoltaic-powered rural water supply networks according to claim 5, characterized in that: A photovoltaic module includes a solar panel, a battery, and an adjustment bracket. The electrical energy generated by the solar panel is stored in the battery, which provides power to the adjustment drive unit. The adjustment bracket is used to adjust the tilt angle of the solar panel.

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