An intelligent drainage device and method suitable for a photovoltaic support pipe pile foundation

Abstract

The application provides an intelligent drainage device and method suitable for a photovoltaic support pipe pile foundation, belongs to the field of prestressed high-strength concrete pipe piles, and comprises a drainage assembly, the drainage assembly comprises a drainage section, a one-way valve section and a fixed connection section, a dredging rotating plate is arranged in the drainage section, the dredging rotating plate is driven by a waterproof micro motor fixed to the outer wall of the drainage section, the one-way valve section is provided with an electric valve group for controlling the opening of the one-way valve section, a connecting pipe is connected with the drainage hole of the pipe pile at one end and connected with the fixed connection section of the drainage assembly at the other end, and an intelligent control module comprises a waterproof liquid level sensor arranged in the pipe pile, the waterproof liquid level sensor is connected with a micro integrated controller, the micro integrated controller is arranged in the fixed connection section of the drainage assembly, and the electric valve group and the waterproof motor are controlled to operate according to the liquid level signal of the liquid level sensor. External accumulated water can be effectively prevented from flowing back, sedimentation and blockage can be prevented, and the dredging efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of prestressed high-strength concrete pipe pile technology, and particularly relates to an intelligent drainage device and drainage method suitable for photovoltaic support pipe pile foundations. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Prestressed high-strength concrete pipe piles (PHC pipe piles) are widely used in the foundation engineering of various photovoltaic power stations due to their advantages such as high bearing capacity, convenient construction, and controllable cost. However, during long-term use, design defects in the drainage system at the bottom of the pipe piles have gradually become apparent. Especially in environments with silty soil, frequent fluctuations in groundwater levels, or seasonal water accumulation, the failure of traditional drainage holes leads to water accumulation inside the pile. In low-temperature environments, the accumulated water freezes and frosts, damaging the pile structure and directly affecting the structural safety and lifespan of the pipe pile.

[0004] While existing PHC pipe piles are equipped with drainage holes, these holes suffer from several drawbacks. First, silt intrusion and channel blockage are significant problems. Over time, wind-driven silt accumulates in the drainage holes, eventually completely blocking the drainage channels and preventing water from draining from the pile. Traditional dredging methods (such as high-pressure water jet flushing) are not only cumbersome but can also damage the pipe pile structure, affecting its bearing capacity. Second, backflow of external water is a serious issue. As the connecting channel between the inside and outside of the pipe pile, the drainage holes allow external water to seep back into the internal cavity of the pipe pile during the rainy season or when the groundwater level rises, resulting in significant water accumulation inside the pile. Furthermore, existing drainage structures often use pre-embedded PVC straight pipes or simple perforations, which are fixedly connected to the pipe pile body in a single pour. If blockage or valve failure occurs, repairs require breaking open the outer wall of the pipe pile, damaging the structural integrity and necessitating the re-pouring of concrete for repair. Summary of the Invention

[0005] To overcome the shortcomings of the existing technology, this invention provides an intelligent drainage device and method suitable for photovoltaic support pipe pile foundations. By designing an intelligent self-draining anti-clogging control module, it achieves real-time monitoring of water accumulation within the pile and dynamic adjustment of drainage volume. Utilizing a detachable one-way valve structure combined with the installation method of the connecting pipe, it achieves efficient one-way discharge of water accumulated inside the pipe pile, while effectively preventing the reverse intrusion of external silt, water, and other impurities. A fully automatic sludge-clearing rotating plate is installed inside the drainage pipe, transforming the traditional "passive sludge clearing" into "active anti-clogging," reducing the probability of silt adhesion. This device not only improves the reliability and durability of the drainage system but also supports rapid disassembly and cleaning or component replacement, significantly reducing maintenance costs and extending the service life of the pipe pile.

[0006] To achieve the above objectives, one or more embodiments of the present invention provide the following technical solutions: The first aspect of this invention provides an intelligent drainage device suitable for photovoltaic support pipe pile foundations; A smart drainage device suitable for photovoltaic support pipe pile foundations includes: A drainage assembly includes a drainage section, a one-way valve section, and a fixed section; a sludge removal rotating plate is installed inside the drainage section, and the sludge removal rotating plate is driven by a motor fixed to the outer wall of the drainage section; the one-way valve section is equipped with an electric valve group for controlling the opening of the one-way valve section. A connecting pipe, one end of which is connected to the drainage hole of the pipe pile, and the other end of which is connected to the fixed section of the drainage component; The intelligent control module includes a liquid level sensor installed inside the pipe pile. The liquid level sensor is connected to a microcontroller, which is installed in the fixed section of the drainage assembly. The microcontroller controls the operation of the electric valve group and the motor based on the liquid level signal from the liquid level sensor.

[0007] As a further technical solution, the drainage section is provided with symmetrically distributed drainage channels.

[0008] As a further technical solution, the dredging rotating plate includes an electric rotating shaft and a dredging rotating plate mounted on the electric rotating shaft.

[0009] As a further technical solution, the one-way valve section includes a baffle plate, a baffle sill, and a sludge removal valve; one end of the baffle plate is fixed to the inner wall of the one-way valve section by an electric valve assembly, and the other end abuts against the baffle sill.

[0010] As a further technical solution, the baffle plate has a triangular structure that fits the drain outlet; the baffle sill has a hexagonal short column structure.

[0011] As a further technical solution, the electric valve assembly includes six miniature electric ball valves, the number of which is opened is controlled in stages according to the water level height detected by the liquid level sensor.

[0012] As a further technical solution, a sludge removal port is provided on the outer wall of the one-way valve section.

[0013] As a further technical solution, the fixed connection section is a bolt-like structure with a threaded end for fixed connection with the connecting pipe.

[0014] As a further technical solution, the intelligent control module also includes a solar cell, which is fixedly connected to the pipe pile.

[0015] A second aspect of the present invention provides a drainage method suitable for photovoltaic support pipe pile foundations.

[0016] A smart drainage method for photovoltaic support pipe pile foundations includes: The water level sensor monitors the water level inside the pipe pile in real time and transmits the information to the controller. The controller then controls the number of electric valves to be opened based on the water level. When the water level is less than 250 mm, close all valves. When the water level is between 250mm and 500mm, open all three valves. When the water level is ≥500mm, open all 6 valves. When the electric valve assembly opens to drain water, the motor is started simultaneously to drive the sludge removal plate to rotate, preventing the drain outlet from becoming blocked.

[0017] The above one or more technical solutions have the following beneficial effects: This invention utilizes a waterproof liquid level sensor to monitor the water level inside the pipe pile in real time, combined with a micro-integrated controller for intelligent control of the electric valve assembly, significantly improving drainage efficiency and avoiding energy waste. Simultaneously, the combination of a baffle plate and a baffle sill forms a one-way valve structure, effectively preventing backflow of external water and ensuring unidirectional drainage. The fully automatic sludge-clearing rotating plate structure uses an electric rotating shaft to drive serrated stainless steel plates to rotate alternately, performing a dual "cutting + collision" action on the sludge at the drainage outlet, preventing blockage at the source and improving sludge-clearing efficiency by over 60%. Furthermore, the external sludge-clearing port allows for routine maintenance without damaging the pipe pile structure; sludge clearing can be completed simply by removing the rubber plug.

[0018] Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0020] Figure 1 This is a front view of the drainage component of the intelligent drainage device in the first embodiment.

[0021] Figure 2 This is a side view of the drainage component of the intelligent drainage device in the first embodiment.

[0022] Figure 3 This is a schematic diagram of the dredging rotating plate structure of the intelligent drainage device in the first embodiment.

[0023] Figure 4 This is a schematic diagram of the intelligent drainage device in the first embodiment.

[0024] Figure 5This is a schematic diagram of the inner cross-section of the intelligent drainage device and the intelligent control module working together in the first embodiment.

[0025] Figure 6 This is a schematic diagram of the drainage device assembly of the intelligent drainage device in the first embodiment.

[0026] Figure 7 This is a flowchart of the drainage method of the intelligent drainage device in the second embodiment.

[0027] In the diagram, 1 is the drainage section, 2 is the one-way valve section, 3 is the fixed connection section, 4 is the bolt structure, 5 is the rotating shaft, 6 is the dredging plate, 7 is the dredging port, 8 is the protective net, 9 is the water baffle, 10 is the baffle sill, 11 is the liquid level sensor, 12 is the solar cell, 13 is the microcontroller, 14 is the electric valve group, 15 is the motor, and 16 is the connecting pipe. Detailed Implementation

[0028] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations of the present invention.

[0030] Where there is no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0031] Example 1 This embodiment discloses an intelligent drainage device suitable for photovoltaic support pipe pile foundations; like Figure 1As shown, an intelligent drainage device suitable for photovoltaic support pipe pile foundations includes: a drainage component, which is a hexagonal basket-shaped structure composed of three parts: a drainage section 1, a one-way valve section 2, and a fixing section 3. The drainage section 1 has six symmetrically distributed drainage channels, each with a triangular outlet, which effectively improves the fault tolerance of the device's drainage function and increases drainage efficiency. The drainage section 1 is also equipped with a protective net 8, which can effectively intercept debris brought in by backflow of external water. The one-way valve section 2 consists of a baffle plate 9, a baffle sill 10, and a sludge removal valve 7. The baffle plate 9 has a triangular structure, and its shape fits tightly against the inner wall of the drainage channel and the edge of the baffle sill 10. It is fixed to the inner wall of the drainage component by an electric valve assembly 14. When the water flows out normally, the baffle plate 9 opens under the action of the electric valve. When external water flows back, the control action of the electric valve assembly 14 and the support action of the baffle sill 10 keep the baffle plate 9 closed, effectively preventing backflow of water. The baffle sill 10 is a hexagonal short column structure located in the center of the one-way valve section and fixed to the center of the drainage channel, serving to support the baffle plate 9. The sludge removal ports 7 are evenly distributed on the outer wall of the drainage component and sealed with rubber plugs. When the drainage component is clogged, the rubber plugs can be manually removed to drain the accumulated material, facilitating daily sludge removal and maintenance. The end of the fixed section 3 is a bolt-like structure 4, connected to the connecting pipe 16 for easy installation and disassembly. The connecting pipe 16 is an L-shaped round pipe. One end extends into the drainage hole of the pipe pile and connects to the inside of the pipe pile, while the other end is fixedly connected to the drainage component, so that the entire drainage device and the pipe pile form a whole. The fully automatic sludge-clearing rotating plate structure consists of an electric rotating shaft 5 fixed at the outlet of the drainage section 1 of the drainage component and six sludge-clearing rotating plates 6 symmetrically distributed in the center. The electric rotating shaft 5 is driven by a miniature waterproof motor 15 fixed to the outer wall of the drainage section 1 of the drainage component. The rotating shaft 5 drives the rotating plates 6 to rotate alternately clockwise and counterclockwise, breaking up the sludge particles attached to the drainage outlet and preventing accumulation and blockage. The sludge-clearing rotating plates 6 are made of thin stainless steel sheets with a smooth surface treatment. The outer edge of the rotating plate is machined into a triangular sawtooth structure with a height of 0.5mm, leaving a 2-3mm gap with the inner wall of the drainage channel. During rotation, the sludge clumps are broken up through a dual action of cutting and collision.

[0032] The intelligent self-drainage control module includes a waterproof liquid level sensor 11, a solar cell 12, a microcontroller 13, an electric valve assembly 14, and a miniature waterproof motor 15. The waterproof liquid level sensor 11 is installed at the bottom inside the PHC pipe pile to monitor the water level inside the pile in real time and outputs an analog signal to the micro-integrated controller 13. The solar cell 12 provides daily power to the device. The micro-integrated controller 13 is integrated into the inner wall of the drainage component's fixed section 3. After receiving the signal from the liquid level sensor 11, it controls the number of valves opened in the electric valve assembly 14. The electric valve assembly 14 consists of six miniature electric ball valves, each corresponding to one of the six drainage channels in the one-way valve section 2. The number of valves opened is linked to the water level: when the water level is <250mm, all valves are closed to reduce the entry of external impurities; when 250mm ≤ water level <500mm, three valves are opened for normal drainage; when the water level is ≥500mm, all six valves are fully opened for rapid drainage.

[0033] The miniature waterproof motor 15 is also connected to the microcontroller 13. When the electric valve group 15 opens to drain water, the motor 15 synchronously drives the rotating shaft 5 to prevent the drain outlet from being blocked by deposits. During installation, first insert one end of the connecting pipe 16 into the drainage hole of the pipe pile, ensuring it is connected to the inside of the pipe pile. Then, fix the drainage assembly to the other end of the connecting pipe via the thread 4 of the fixing section. Use epoxy resin to fix the probe of the liquid level sensor 11, and lead the cable through the channel of the connecting pipe 16, welding it to the micro integrated controller 13. The control motor 15 of the fully automatic sludge removal rotating plate is fixed to the outer wall of the drainage section 1 of the drainage assembly and connected to the rotating shaft 5. After installation, the drainage device is ready for use.

[0034] During use, water flows into the connecting pipe through the drainage hole of the pipe pile, and then exits through the drainage section 1 of the drainage assembly. The baffle plate 9 of the one-way valve section 2 prevents backflow of water and ensures one-way drainage. When dredging and maintenance are required, simply pull out the rubber plug on the dredging valve 7 to drain the silt from the drainage assembly and restore its smooth flow.

[0035] Example 2 This embodiment discloses an intelligent drainage method applicable to photovoltaic support pipe pile foundations; like Figure 7 As shown, an intelligent drainage method suitable for photovoltaic support pipe pile foundations includes: The water level sensor 11 monitors the water level inside the pipe pile in real time; the micro integrated controller 13 controls the number of electric valve assemblies 14 to be opened based on the water level. When the water level is <250mm, close all valves; when 250mm ≤ water level <500mm, open 3 valves; when the water level is ≥500mm, open all 6 valves. When the valve is opened to drain water, the micro waterproof motor 15 is started simultaneously to drive the sludge removal plate 6 to rotate, preventing the drain outlet from becoming blocked.

[0036] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. An intelligent drainage device suitable for photovoltaic support pipe pile foundations, characterized in that, include: The drainage assembly includes a drainage section, a one-way valve section, and a fixed section. A sludge-removing rotating plate is installed inside the drainage section, and the drainage section also has symmetrically distributed drainage channels. The sludge-removing rotating plate is driven by a miniature waterproof motor fixed to the outer wall of the drainage section. The one-way valve section is equipped with an electric valve assembly for controlling the opening of the one-way valve section. The electric valve assembly includes six miniature electric ball valves, the number of which is opened being controlled in stages according to the water level detected by the level sensor. A connecting pipe, one end of which is connected to the drainage hole of the pipe pile, and the other end of which is connected to the fixed section of the drainage component; The intelligent control module includes a waterproof liquid level sensor installed inside the pipe pile. The waterproof liquid level sensor is connected to a micro integrated controller, which is installed in the fixed section of the drainage component. The micro integrated controller controls the operation of the electric valve group and the micro waterproof motor based on the liquid level signal from the liquid level sensor.

2. The intelligent drainage device for photovoltaic support pipe pile foundation as described in claim 1, characterized in that, The dredging rotating plate includes an electric rotating shaft and a dredging rotating plate mounted on the electric rotating shaft.

3. The intelligent drainage device for photovoltaic support pipe pile foundation as described in claim 1, characterized in that, The one-way valve section includes a baffle plate, a baffle sill, and a sludge removal valve; one end of the baffle plate is fixed to the inner wall of the one-way valve section by an electric valve assembly, and the other end abuts against the baffle sill.

4. The intelligent drainage device for photovoltaic support pipe pile foundation as described in claim 3, characterized in that, The baffle plate has a triangular structure that fits the drain outlet; the baffle sill has a hexagonal short column structure.

5. The intelligent drainage device for photovoltaic support pipe pile foundation as described in claim 1, characterized in that, A sludge removal port is provided on the outer wall of the one-way valve section.

6. The intelligent drainage device for photovoltaic support pipe pile foundation as described in claim 1, characterized in that, The fixed section has a bolt-like structure with threads at the end for fixed connection with the connecting pipe.

7. The intelligent drainage device for photovoltaic support pipe pile foundation as described in claim 1, characterized in that, The intelligent control module also includes a solar cell, which is fixedly connected to the pipe pile.

8. A smart drainage method suitable for photovoltaic support pipe pile foundations, employing the smart drainage device as described in any one of claims 1-7, characterized in that, include: The water level sensor monitors the water level inside the pipe pile in real time and transmits the information to the controller. The controller then controls the number of electric valves to be opened based on the water level. When the water level is less than 250 mm, close all valves. When the water level is between 250mm and 500mm, open all three valves. When the water level is ≥500mm, open all 6 valves. When the electric valve assembly opens to drain water, the motor is started simultaneously to drive the sludge removal plate to rotate, preventing the drain outlet from becoming blocked.

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