A hydropower station technical water supply system and method with intelligent deployment function

Abstract

This invention relates to a water supply system and method for a hydropower station with intelligent dispatching function, comprising a main pipeline, at least two branch pipelines, and a controller. The main pipeline includes an inlet pipe and an outlet pipe. The branch pipelines are equipped with on / off components, pressure detection components, and filters. A rotating seal is provided between the main pipeline and the branch pipelines, comprising a rotating structure and a sealing structure. The on / off components, pressure detection components, and rotating seal are communicatively connected to the controller. Water enters from the inlet pipe, flows through the branch pipelines, and exits from the outlet pipe to the subsequent treatment unit. When the pressure detection component detects a potential blockage in an operating branch pipeline, the controller closes the on / off components on the faulty branch pipeline and opens the on / off components on at least one other branch pipeline. The controller also controls the rotating seal to rotate the branch pipeline around the main pipeline to a system maintenance position. The design, which combines redundant branch pipeline backup with intelligent control of the water supply system, effectively ensures the continuity of water supply through automatic monitoring and control. When a branch pipeline becomes blocked, it can quickly switch to other branch pipelines to guarantee the normal operation of the water supply system, reduce the risk of water supply interruption, and improve the system's reliability and stability. Furthermore, this intelligent allocation design reduces the need for manual intervention, lowers the possibility of human error, and enhances the system's intelligent management level.

Description

Technical Field

[0001] This invention relates to the field of water supply technology, and in particular to a water supply system and method for hydropower stations with intelligent allocation function. Background Technology

[0002] A hydroelectric power station is a facility that converts the kinetic energy of water into electrical energy, typically built on bodies of water such as rivers, lakes, or reservoirs. Its basic principle is to use the kinetic energy of the water flow to drive a turbine or water turbine, which in turn drives a generator to produce electricity. The water supply system of a hydroelectric power station mainly refers to the system used for cooling, lubrication, and regulation of the turbine or water turbine to ensure its normal operation. The water supply system is equipped with filtration pipelines. Water flows in through the pipes, passes through the filtration pipelines, and then flows out again, filtering out suspended solids, silt, heavy metals, and other impurities to prevent them from entering the turbine or water turbine and causing damage. Current technology typically uses only a single filtration pipeline, lacking redundancy design. If the filtration pipeline malfunctions and requires maintenance, or if the filter cartridge reaches its scheduled replacement time, the entire filtration pipeline needs to be disassembled for repair or replacement. This can force an interruption of the water supply system, causing water supply problems for users. In addition, the automation level of the operation and management of hydropower station equipment in many regions is currently low. In actual use, it is often necessary to rely on manual operation to monitor, regulate and maintain the water supply system. Over-reliance on manual operation not only poses a certain risk of misoperation, but also leads to high maintenance costs. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a hydropower station water supply system and method with intelligent allocation function, which solves the problems of water interruption for users and low system automation when the filter pipes of the existing hydropower station water supply system are repaired or replaced.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A hydropower station water supply system with intelligent dispatching function includes a main pipeline, at least two branch pipelines, and a controller.

[0006] The main pipeline includes an inlet pipe and an outlet pipe;

[0007] The branch pipeline is equipped with an on / off component, a pressure detection component, and a filter. The on / off component is used to control the flow of water inside the branch pipeline, and the pressure detection component is used to detect the pressure of the water flow inside the branch pipeline to determine whether the branch pipeline is blocked.

[0008] A rotating sealing part is provided between the main pipeline and the branch pipeline. The rotating sealing part includes a rotating structure and a sealing structure. The rotating structure rotatably connects the main pipeline and the branch pipeline and is used to drive the branch pipeline to rotate around the main pipeline to the system maintenance position when the branch pipeline is blocked. The sealing structure is used to seal the gap between the main pipeline and the branch pipeline.

[0009] The on / off component, the pressure detection component, and the rotating seal are all communicatively connected to the controller.

[0010] Furthermore, the on / off assembly includes a first on / off valve and a second on / off valve, and the pressure detection assembly includes a first pressure sensor and a second pressure sensor.

[0011] The first on / off valve, the first pressure sensor, the filter, the second pressure sensor, and the second on / off valve are detachably connected to the branch pipeline in sequence along the water flow direction;

[0012] The first on / off valve, the first pressure sensor, the second pressure sensor, and the second on / off valve are all communicatively connected to the controller.

[0013] Furthermore, the first pressure sensor and the second pressure sensor are symmetrically distributed on the upstream and downstream sides of the filter with the filter as the center.

[0014] Furthermore, the rotating structure includes a first rotating structure and a second rotating structure;

[0015] The first rotating structure is disposed on the outer surface of the end of the water inlet pipe and is rotatably connected to the end of the water inlet pipe. The branch pipe inlet passes through the first rotating structure and communicates with the end of the water inlet pipe.

[0016] The second rotating structure is disposed on the outer surface of the starting end of the water outlet pipe and is rotatably connected to the starting end of the water outlet pipe. The outlet of the branch pipe is connected to the starting end of the water outlet pipe through the second rotating structure.

[0017] Furthermore, the first rotating structure includes a first fixed gear ring fixed to the outer surface of the end of the water inlet pipe, a first water pipe sleeve sleeved on the outer surface of the end of the water inlet pipe, and a first transmission gear ring. The first transmission gear ring meshes with the first fixed gear ring for transmission, and the branch pipe inlet passes through the first water pipe sleeve and communicates with the end of the water inlet pipe.

[0018] The second rotating structure includes a second fixed gear ring fixed to the outer surface of the starting end of the water outlet pipe, a second water pipe sleeve sleeved on the outer surface of the starting end of the water outlet pipe, and a second transmission gear ring. The second transmission gear ring meshes with the second fixed gear ring for transmission. The branch pipe outlet passes through the second water pipe sleeve and communicates with the starting end of the water outlet pipe.

[0019] The rotating sealing part further includes a first motor and a second motor. The first motor includes a first output gear, which is connected to the first transmission gear ring. The second motor includes a second output gear, which is connected to the second transmission gear ring.

[0020] Both the first motor and the second motor are communicatively connected to the controller. The first rotating structure and the second rotating structure rotate synchronously through the transmission of the first motor and the second motor, thereby driving the branch pipeline to the system maintenance position.

[0021] Furthermore, the sealing structure includes a first sealing structure and a second sealing structure;

[0022] The first sealing structure includes a first annular groove and a plurality of sealing rings. The first annular groove is disposed at the end of the water inlet pipe, and the water outlet of the water inlet pipe is located inside the first annular groove. The sealing rings are sleeved on the outer surface of the water inlet pipe, located on both sides of the first annular groove and the inlet of the branch pipe, and are sealed and fitted to the inner wall of the first water pipe sleeve.

[0023] The second sealing structure includes a second annular groove and several sealing rings. The second annular groove is disposed at the starting end of the water outlet pipe, and the water inlet of the water outlet pipe is located inside the second annular groove. The sealing rings are sleeved on the outer surface of the water outlet pipe, located on both sides of the second annular groove and the outlet of the branch pipe, and are sealed and fitted to the inner wall of the second water pipe sleeve.

[0024] Furthermore, the branch pipeline is also equipped with a backflushing structure, which includes a backflushing water pipe and a backflushing drain pipe;

[0025] Any two of the branch pipes are connected to the backwash water pipe, and both ends of the backwash water pipe are located downstream of the filter and between the second on / off valve, and the pressure on / off valve is located on the backwash water pipe;

[0026] The starting end of the backflush drain pipe is located between the first on / off valve and the second on / off valve and is connected to the branch pipe. The backflush drain pipe is equipped with a backflush drain pipe on / off valve.

[0027] Both the pressurized on / off valve and the backflush drain pipe on / off valve are communicatively connected to the controller.

[0028] To achieve the above objectives, the present invention also employs the following technical solution:

[0029] A water supply method for a hydropower station with intelligent dispatching function, applicable to any of the water supply systems with intelligent dispatching function described in this article, includes the following steps:

[0030] Step S1: Obtain the pressure signals upstream and downstream of the filter in a branch pipeline of the hydropower station's technical water supply system under real-time operating conditions;

[0031] Step S2: Determine whether the pressure difference between the measured pressure signal upstream of the filter and the pressure signal downstream of the filter meets the preset range;

[0032] If the conditions are not met, the branch pipeline is determined to be faulty. The on / off component of the faulty branch pipeline is shut off, while the on / off component of at least one other branch pipeline is opened. The rotating structure is then controlled to rotate the faulty branch pipeline to the system maintenance position. To achieve the above objectives, the present invention also employs the following technical solution:

[0033] A water supply method for hydropower stations with intelligent dispatching function, applicable to the aforementioned water supply system for hydropower stations with intelligent dispatching function, includes the following steps:

[0034] Step S1: Obtain the pressure signals upstream and downstream of the filter in a branch pipeline of the hydropower station's technical water supply system under real-time operating conditions;

[0035] Step S2: Determine whether the pressure difference between the measured pressure signal upstream of the filter and the pressure signal downstream of the filter meets the preset range;

[0036] If the conditions are not met, the branch pipeline is determined to be faulty. The on / off component of the faulty branch pipeline is closed, the on / off component of at least one other branch pipeline is opened, the backflush drain valve on the backflush drain pipe corresponding to the faulty branch pipeline is opened, the pressurizing valve on the backflush water pipe connecting the faulty branch pipeline with at least one other branch pipeline is opened, and the on / off components on other branch pipelines connected to the backflush water pipe are opened simultaneously.

[0037] Determine whether the pressure difference between the downstream pressure signal and the upstream pressure signal of the filter in the branch pipeline with the fault meets the preset range;

[0038] If so, then clear the fault information of the branch pipeline, and / or close the backflush drain valve on the backflush drain pipe corresponding to the faulty branch pipeline, close the on / off components on other branch pipelines, and close the pressurization valve on the backflush pipe.

[0039] If not, close the backflush drain valve on the backflush drain pipe corresponding to the faulty branch pipe and the pressurization valve on the corresponding backflush water pipe, and control the rotating structure to rotate the faulty branch pipe to the system maintenance position.

[0040] In summary, compared with the prior art, the present invention has at least the following beneficial effects:

[0041] The intelligent water supply system for hydropower stations of the present invention includes a main pipeline, at least two branch pipelines, and a controller. The main pipeline includes an inlet pipe and an outlet pipe. The branch pipelines are equipped with on / off components, pressure detection components, and filters. A rotating seal is provided between the main pipeline and the branch pipelines. The rotating seal includes a rotating structure and a sealing structure. The on / off components, the pressure detection components, and the rotating seal are communicatively connected to the controller. Water enters from the inlet pipe, flows through the branch pipelines, and exits from the outlet pipe to the subsequent treatment unit. When the pressure detection component detects a potential blockage in an operating branch pipeline, the controller controls the on / off components on the faulty branch pipeline to close, then controls the on / off components on at least one other branch pipeline to open, and controls the rotating seal to rotate the branch pipeline around the main pipeline to a system maintenance position. The design, which combines redundant branch pipeline backup with intelligent control of the water supply system, effectively ensures the continuity of water supply through automatic monitoring and control. When a branch pipeline becomes blocked, it can quickly switch to other branch pipelines to guarantee the normal operation of the water supply system, reducing the risk of water supply interruptions due to single-point failures and improving the system's reliability and stability. Furthermore, this intelligent allocation design reduces the need for manual intervention, lowers the possibility of human error, and enhances the system's intelligent management level. Attached Figure Description

[0042] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0043] Figure 1 This is a cross-sectional schematic diagram of a hydropower station water supply system with intelligent dispatching function according to an embodiment of the present invention.

[0044] Figure 2 This is a schematic diagram of the water supply system of a hydropower station with intelligent dispatching function according to an embodiment of the present invention.

[0045] Figure 3This is an internal schematic diagram of a hydropower station water supply system with intelligent dispatching function, according to an embodiment of the present invention.

[0046] Figure 4 A flowchart of a water supply system method for a hydropower station with intelligent dispatching function provided in an embodiment of the present invention.

[0047] Figure 5 Another flowchart of a water supply system method for a hydropower station with intelligent dispatching function provided in an embodiment of the present invention.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. Main pipe; 11. Inlet pipe; 12. Outlet pipe;

[0050] 2. Branch piping; 21. On / off assembly; 211. First on / off valve; 212. Second on / off valve; 22. Pressure detection assembly; 221. First pressure sensor; 222. Second pressure sensor; 23. Filter;

[0051] 2' Branch piping; 21' On / off assembly; 211' First on / off valve; 212' Second on / off valve; 22' Pressure detection assembly; 221' First pressure sensor; 222' Second pressure sensor; 23' Filter;

[0052] 3. Rotating sealing part; 31. Rotating structure; 311. First rotating structure; 3111. First fixed gear ring; 3112. First water pipe sleeve; 3113. First transmission gear ring; 312. Second rotating structure; 3121. Second fixed gear ring; 3122. Second water pipe sleeve; 3123. Second transmission gear ring; 32. Sealing structure; 321. First sealing structure; 3211. First annular groove; 3212. Sealing ring; 3213. First sealing groove; 322. Second sealing structure; 3221. Second annular groove; 3222. Second sealing groove; 33. First motor; 331. First output gear; 34. Second motor; 341. Second output gear;

[0053] 4. Backflush structure; 41. Backflush water pipe; 411. Pressurized on / off valve; 42. Backflush drain pipe; 421. Backflush drain pipe on / off valve. Detailed Implementation

[0054] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0056] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0057] As attached Figure 1 To be continued Figure 3 As shown in the figure, this invention discloses a hydropower station water supply system with intelligent dispatching function, including a main pipeline 1, at least two branch pipelines 2, and a controller.

[0058] The main pipeline 1 includes an inlet pipe 11 and an outlet pipe 12, which are responsible for the input and output of water supply.

[0059] The branch pipe 2 is equipped with an on / off component 21, a pressure detection component 22 and a filter 23. The on / off component 21 is used to control the flow of water inside the branch pipe 2, and the pressure detection component 22 is used to detect the pressure of the water flow inside the branch pipe 2 in order to monitor the operating status of the pipe and determine whether the branch pipe 2 is blocked.

[0060] A rotating sealing part 3 is provided between the main pipeline 1 and the branch pipeline 2. The rotating sealing part 3 includes a rotating structure 31 and a sealing structure 32. The rotating structure 31 rotatably connects the main pipeline 1 and the branch pipeline 2 and is used to drive the branch pipeline 2 to rotate around the main pipeline 1 to the system maintenance position when the branch pipeline 2 is blocked. The sealing structure 32 is provided between the outer wall of the main pipeline 1 and the inner wall of the rotating structure 31 and is used to seal the gap between the main pipeline 1 and the branch pipeline 2.

[0061] The on / off component 21, the pressure detection component 22, and the rotating seal 3 are all connected to the controller for unified coordination and management, so as to realize the intelligent allocation and stable operation of the entire water supply system.

[0062] Specifically, water enters from the inlet pipe 11, flows through the branch pipe 2, and exits from the outlet pipe 12 into the subsequent system. When the pressure detection component 22 detects a potential blockage in the operating branch pipe 2, the controller controls the on / off component 21 on the faulty branch pipe 2 to close, and then controls the on / off component 21' on at least one other branch pipe 2' to open. It also controls the rotating sealing part 3 to rotate the branch pipe 2 around the main pipe 1 to the system maintenance position. This design, combining the redundancy of the branch pipe 2 with intelligent control of the water supply system, effectively ensures the continuity of water supply through automatic monitoring and control. When a branch pipe 2 becomes blocked or requires maintenance, it can quickly switch to another branch pipe 2', ensuring the normal operation of the water supply system. This reduces the risk of water supply interruption due to single-point failures and improves the reliability and stability of the system. Furthermore, this design reduces the need for manual intervention, lowers the possibility of human error, and enhances the intelligent management level of the system.

[0063] On / off assembly 21 includes a first on / off valve 211 and a second on / off valve 212, and pressure detection assembly 22 includes a first pressure sensor 221 and a second pressure sensor 222.

[0064] The first on / off valve 211, the first pressure sensor 221, the filter 23, the second pressure sensor 222, and the second on / off valve 212 are sequentially and detachably connected to the branch pipe 2 along the water flow direction;

[0065] The first on / off valve 211, the first pressure sensor 221, the second pressure sensor 222, and the second on / off valve 212 are all connected to the controller for communication.

[0066] When water enters branch pipe 2 from inlet pipe 11, the first pressure sensor 221 first monitors the pressure upstream of filter 23. After passing through the first pressure sensor 221, the water flows out through filter 23. The second pressure sensor 222 then monitors the pressure downstream of filter 23. The function of filter 23 is to remove solid particles, debris, contaminants, and other impurities that may be present in the water supply, ensuring the cleanliness of the water supply and protecting downstream equipment from damage. The pressure detection component 22 monitors in real time whether the pressure of the system water supply passing through filter 23 is stable and meets expectations. Because impurities accumulate in filter 23 over time, its filtration resistance gradually increases, causing changes in the pressure difference between upstream and downstream of filter 23. For example, when the difference between the upstream pressure value measured by the first pressure sensor 221 and the downstream pressure value measured by the second pressure sensor 222 exceeds a certain threshold, it indicates that filter 23 may be clogged and requires maintenance or replacement. This helps to detect problems with filter 23 in a timely manner, preventing filter 23 failure from affecting the normal operation of the entire system and improving the safety and reliability of the system. At this time, filter 23 needs to be maintained. The two pressure sensors are connected to the controller and can transmit real-time pressure data to the controller. The controller can control the opening degree of the first on-off valve 211 and the second on-off valve 212 according to the system requirements and working status. For example, when filter 23 malfunctions and needs maintenance or when the filter reaches the scheduled replacement point, the controller controls the first on-off valve 211 and the second on-off valve 212 to close, and at the same time controls the first on-off valve 211' and the second on-off valve 212' on at least one other branch pipeline 2' to open. It also controls the rotating sealing part 3 to drive the branch pipeline 2 to rotate around the main pipeline 1 to the system maintenance position for maintenance or repair. Alternatively, the opening degree of the first on-off valve 211 and the second on-off valve 212 can be flexibly controlled according to the measured upstream and downstream pressure values ​​of filter 23.

[0067] In addition, the first on / off valve 211, the first pressure sensor 221, the filter 23, the second pressure sensor 222, and the second on / off valve 212 are all detachably connected to the branch pipe 2 via connecting pipes, making the maintenance of the above components more convenient. For example, when it is necessary to replace or clean the filter 23, it is only necessary to rotate the branch pipe 2 to the maintenance position and then simply disassemble the connecting pipes on both sides of the filter 23, without having to disassemble the entire system on a large scale, saving maintenance personnel time and effort. Moreover, the connecting pipes tightly and orderly connect the various components together, making effective use of space. This compact design allows the water supply system to be arranged and installed in a limited space according to the required shape, suitable for sites of various sizes and shapes, increasing the versatility of the system.

[0068] It is worth noting that the first pressure sensor 221 and the second pressure sensor 222 need to be symmetrically distributed on the upstream and downstream sides of the filter 23 with the filter 23 as the center. The purpose of this symmetrical arrangement is to reduce measurement errors and help to obtain more accurate pressure difference values. Therefore, it can reduce measurement errors caused by asymmetrical sensor installation positions or other factors, and can narrow down the scope of troubleshooting when a fault occurs based on the water supply pressure values ​​at both ends, improve the efficiency of fault location, and reduce maintenance costs.

[0069] In order to allow the connection between the branch pipe 2 and the inlet pipe 11 and the outlet pipe 12 to have a certain degree of rotational freedom, so as to facilitate subsequent intelligent control of the branch pipe 2 to rotate around the main pipe 1 to the maintenance position for repair, the rotating structure 31 includes a first rotating structure 311 and a second rotating structure 312.

[0070] The first rotating structure 311 is disposed on the outer surface of the end of the water inlet pipe 11 and is rotatably connected to the end of the water inlet pipe 11. The inlet of the branch pipe 2 passes through the first rotating structure 311 and is connected to the end of the water inlet pipe 11. The second rotating structure 312 is disposed on the outer surface of the starting end of the water outlet pipe 12 and is rotatably connected to the starting end of the water outlet pipe 12. The outlet of the branch pipe 2 is connected to the starting end of the water outlet pipe 12 through the second rotating structure 312.

[0071] The first rotating structure 311 includes a first fixed gear ring 3111 fixed on the outer surface of the end of the inlet pipe 11, a first water pipe sleeve 3112 sleeved on the outer surface of the end of the inlet pipe 11, and a first transmission gear ring 3113. The first transmission gear ring 3113 meshes with the first fixed gear ring 3111 for transmission. The inlet of the branch pipe 2 passes through the first water pipe sleeve 3112 and communicates with the end of the inlet pipe 11. The second rotating structure 312 includes a second fixed gear ring 3121 fixed on the outer surface of the starting end of the outlet pipe 12, a second water pipe sleeve 3122 sleeved on the outer surface of the starting end of the outlet pipe 12, and a second transmission gear ring 3123. The second transmission gear ring 3123 meshes with the second fixed gear ring 3121 for transmission. The outlet of the branch pipe 2 passes through the second water pipe sleeve 3122 and communicates with the starting end of the outlet pipe 12.

[0072] The rotating sealing part 3 also includes a first motor 33 and a second motor 34. The first motor 33 includes a first output gear 331, which is connected to the first transmission gear ring 3113. The second motor 34 includes a second output gear 341, which is connected to the second transmission gear ring 3123. Both the first motor 33 and the second motor 34 are connected to the controller. The first rotating structure 311 and the second rotating structure 312 rotate synchronously through the transmission of the first motor 33 and the second motor 34, thereby driving the branch pipeline 2 to the system maintenance position.

[0073] In the first rotating structure 311, the first fixed gear ring 3111, fixed to the outer surface of the end of the water inlet pipe 11, remains stationary. The controller controls the first motor 33 to start, causing the first output gear 331 to drive the first transmission gear ring 3113 to rotate. Since the first transmission gear ring 3113 meshes with the first fixed gear ring 3111, the rotation of the first transmission gear ring 3113 ultimately drives the first water pipe sleeve 3112, which is sleeved on the outer surface of the end of the water inlet pipe 11, to rotate. Similarly, in the second rotating structure 312, the second fixed gear ring 3121, fixed to the outer surface of the starting end of the water outlet pipe 12, remains stationary. The controller controls the second motor 34 to start, causing the second output gear 341 to drive the second transmission gear ring 3123 to rotate. Since the second transmission gear ring 3123 meshes with the second fixed gear ring 3121, the rotation of the second transmission gear ring 3123 ultimately drives the second water pipe sleeve 3122, which is sleeved on the outer surface of the starting end of the water outlet pipe 12, to rotate. The motor can effectively transmit the output power to the rotating structure 31, ensuring the stable operation of the rotating structure 31.

[0074] When filter 23 malfunctions and needs maintenance, or when filter 23 reaches its scheduled replacement point, the rotating structure 31, which is connected to the controller, determines the required angle for rotating the faulty branch pipe 2 to the maintenance position. At this time, the controller sends instructions to the first motor 33 and the second motor 34, causing the first motor 33 and the second motor 34 to drive the corresponding water pipe sleeves to rotate synchronously according to the required angle issued by the rotating device through the transmission gear ring. This accurately rotates the branch pipe 2 to the maintenance position, realizing intelligent management of the rotation of the branch pipe 2, reducing the need for manual operation, and improving the automation level of the system.

[0075] The sealing structure 32 includes a first sealing structure 321 and a second sealing structure 322. The first sealing structure 321 includes a first annular groove 3211 and several sealing rings 3212. The first annular groove 3211 is located at the end of the water inlet pipe 11, and the outlet of the water inlet pipe 11 is located inside the first annular groove 3211. The sealing rings 3212 are sleeved on the outer surface of the first sealing groove 3213 of the water inlet pipe 11, located on both sides of the first annular groove 3211 and the inlet of the branch pipe 2, and are sealed and fitted with the inner wall of the first water pipe sleeve 3112. The second sealing structure 322 includes a second annular groove 3221 and several sealing rings 3212. The second annular groove 3221 is located at the beginning end of the water outlet pipe 12, and the inlet of the water outlet pipe 12 is located inside the second annular groove 3221. The sealing rings 3212 are sleeved on the outer surface of the second sealing groove 3222 of the water outlet pipe 12, located on both sides of the second annular groove 3221 and the outlet of the branch pipe 2, and are sealed and fitted with the inner wall of the second water pipe sleeve 3122.

[0076] The first annular groove 3211 ensures smooth water flow from the inlet pipe 11 into the branch pipe 2 and from the branch pipe 2 into the outlet pipe 12, providing good guidance. Additionally, it provides space for sealing the gap between the main pipe 1 and the branch pipe 2. The sealing groove and sealing ring 3212 effectively seal the gap between the main pipe 1 and the branch pipe 2, preventing water leakage and contamination from external pollutants entering the pipe, thus ensuring the water supply system's sealing and safety. This protects the purity of the water and the normal operation of the water supply equipment. Furthermore, it effectively prevents water pressure loss at the rotating structure 31, maintaining stable water pressure and reducing water supply instability, thus meeting various operational requirements of the water supply system.

[0077] To enhance system intelligence, a backflushing structure 4 is installed on branch pipe 2 to provide immediate backflushing in case of blockage. The backflushing structure 4 includes a backflushing water pipe 41 and a backflushing drain pipe 42. Any two branch pipes 2 are connected by the backflushing water pipe 41, with both ends of the backflushing water pipe 41 positioned downstream of the filter 23 and between the second on / off valve 212. A pressure-boosting on / off valve 411 is installed on the backflushing water pipe 41. The starting end of the backflushing drain pipe 42 is located between the first on / off valve 211 and the second on / off valve 212 and is connected to the branch pipe 2. A backflushing drain pipe on / off valve 421 is installed on the backflushing drain pipe 42. Both the pressure-boosting on / off valve 411 and the backflushing drain pipe on / off valve 421 are communicatively connected to the controller.

[0078] Under normal filtration conditions, the pressurization valve 411 and the backwash drain valve 421 are closed, and water flows normally through branch pipe 2. However, when the pressure sensor of branch pipe 2 detects that the pressure difference between the upstream and downstream of filter 23 exceeds a threshold, indicating that filter 23 may be clogged, the controller receives a relevant signal and determines that branch pipe 2 needs to perform a backwash operation, thus controlling the operation of the backwash system. Specifically, the controller issues a command to close the on / off component 21 of the faulty branch pipe and open the on / off component 21' on at least one other branch pipe 2' to keep the system running. At the same time, it opens the pressurization valve 411 on the backwash water pipe 41 between at least one branch pipe 2' connected to the faulty branch pipe 2, allowing a portion of the water supply from the standby branch pipe 2' to flow into the backwash water pipe 41, making the backwash water pipe 41 open. The pressurized water flows into filter 23 from downstream and out of filter 23 from upstream before entering the backwash drain pipe 42 for discharge. In this way, since the water supply flows through the filter 23 on branch pipe 2 in the opposite direction to the normal filtration direction, a certain reverse impact force is formed, which helps to flush out the blockage and make the filter 23 open. At the same time, during the backflushing process, the controller continuously monitors the pressure difference between the second pressure sensor 222 and the first pressure sensor 221. The backflushing continues to run until the controller determines that the pressure difference between the downstream and upstream of the filter 23 meets the normal working conditions of the filter 23. Then, the controller issues a command to close the pressurization on-off valve 411 and the backflushing drain pipe on-off valve 421, close the on-off component on at least one of the spare branch pipes 2', and open the on-off component 21 of the original branch pipe 2 to restore it to normal use.

[0079] The backflushing structure 4, combined with the intelligent allocation of the water supply system, can automatically perform backflushing operation as soon as the filter 23 becomes clogged, without manual intervention. It attempts to perform automatic maintenance before the branch pipe 2 is turned to the maintenance position, which helps to solve the blockage problem of the branch pipe 2 to a certain extent, maintains the stable operation of the system, reduces the work of manual disassembly and cleaning of the pipes, and effectively saves costs.

[0080] In addition to the above-mentioned hydropower station water supply system with intelligent allocation function, the present invention also provides a hydropower station water supply method with intelligent allocation function based on the hydropower station water supply system with intelligent allocation function disclosed in the above embodiments. This hydropower station water supply method with intelligent allocation function corresponds to the above-mentioned system embodiments. The hydropower station water supply method with intelligent allocation function described below can be referred to in correspondence with the hydropower station water supply system with intelligent allocation function described above.

[0081] As attached Figure 4 As shown, the water supply method of this hydropower station with intelligent allocation function includes the following steps:

[0082] Step S1: Obtain the pressure signals upstream and downstream of filter 23 in a branch pipeline 2 of the hydropower station's technical water supply system under real-time operating conditions;

[0083] Step S2: Determine whether the pressure difference between the measured pressure signal upstream of filter 23 and the pressure signal downstream of filter 23 meets the preset range;

[0084] If the conditions are not met, the branch pipe 2 is determined to be faulty. The on / off component 21 of the faulty branch pipe 2 is shut off, while the on / off component 21' of at least one other branch pipe 2' is opened. The rotating structure 31 is controlled to rotate the faulty branch pipe 2 to the system maintenance position.

[0085] In this embodiment, the controller first monitors and obtains the pressure values ​​of the first pressure sensor 221 and the second pressure sensor 222 of a branch pipe 2 of the hydropower station's technical water supply system under real-time operating conditions. It then determines whether the pressure difference between the measured pressure values ​​of the first pressure sensor 221 and the second pressure sensor 222 meets the preset range. If it does, it indicates that the filter 23 is normal, and the controller does not need to issue an adjustment command. If it does not meet the preset range, it indicates that the filter 23 may be clogged. At this time, the controller controls the closure of the first on / off valve 211 and the second on / off valve 212 of the faulty branch pipe 2 to cut off the water flow, and opens the first on / off valve 211' and the second on / off valve 212' of at least one other branch pipe 2' to allow the water flow to resume. At the same time, the controller starts the first motor 33 and the second motor 34 to rotate the branch pipe 2 that needs to be repaired to the repair position so that maintenance personnel can inspect and repair it.

[0086] The present invention also provides a method for intelligent water supply of a hydropower station with intelligent regulation function based on the above-described embodiment of the hydropower station with intelligent regulation function water supply system with the backwash structure 4. This method for intelligent water supply of a hydropower station with intelligent regulation function corresponds to the above-described system embodiment. The method for intelligent water supply of a hydropower station with intelligent regulation function described below can be referred to in correspondence with the hydropower station with intelligent regulation function water supply system described above.

[0087] As attached Figure 5 As shown, this water supply method for hydropower stations with intelligent dispatching function is applicable to water supply systems for hydropower stations with intelligent dispatching function, and includes the following steps:

[0088] Step S1: Obtain the pressure signals upstream and downstream of filter 23 in a branch pipeline 2 of the hydropower station's technical water supply system under real-time operating conditions;

[0089] Step S2: Determine whether the pressure difference between the measured pressure signal upstream of filter 23 and the pressure signal downstream of filter 23 meets the preset range;

[0090] If the conditions are not met, the branch pipe 2 is determined to be faulty. The on / off component 21 of the faulty branch pipe 2 is closed, the on / off component 21' on at least one other branch pipe 2' is opened, the backflush drain pipe on / off valve 421 on the backflush drain pipe 42 corresponding to the faulty branch pipe 2 is opened, the pressurizing on / off valve 411 on the backflush water pipe 41 connecting the faulty branch pipe 2 with at least one other branch pipe 2' is opened, and the on / off component 21' on other branch pipes 2' connected to the backflush water pipe 41 is opened at the same time.

[0091] Determine whether the pressure difference between the pressure signal downstream of filter 23 and the pressure signal upstream of filter 23 in the branch pipeline 2 with the fault meets the preset range;

[0092] If so, then clear the fault information of the branch pipe 2, and / or close the backflush drain pipe on the backflush drain pipe 42 corresponding to the faulty branch pipe 2, close the on / off component 21' on other branch pipes 2' and the pressurization on / off valve 411 on the backflush pipe 41;

[0093] If not, close the backflush drain valve 421 on the backflush drain pipe 42 corresponding to the faulty branch pipe 2 and the pressurization valve 411 on the corresponding backflush water pipe 41, and control the rotating structure 31 to rotate the faulty branch pipe 2 to the system maintenance position.

[0094] In this embodiment, when a backflushing structure 4 is also installed on the branch pipe 2, a first-time backflushing judgment step is added when the controller determines that the filter 23 may be blocked. Specifically, the controller first monitors and obtains the pressure values ​​of the first pressure sensor 221 and the second pressure sensor 222 of a certain branch pipe 2 of the hydropower station's technical water supply system under real-time operating conditions. It is determined whether the pressure difference between the measured pressure values ​​of the first pressure sensor 221 and the second pressure sensor 222 meets the preset range. If it does, it indicates that the filter 23 is normal, and the controller does not need to issue an adjustment command; if it does not, it indicates that the filter 23 may be blocked, and the controller controls the first on / off valve 211 and the second on / off valve 212 of the faulty branch pipe 2 to close to cut off the water flow on the faulty branch pipe 2, and opens the on / off component 21' on at least one other branch pipe 2', the backflushing drain pipe on / off valve 421 of the faulty branch pipe 2, and the connection between the faulty branch pipe 2 and at least one other branch pipe 2'. The pressurized on / off valve 411 on the backwash water pipe 41 connected to the circuit 2 allows the water supply to flow into at least one other branch pipe 2' to ensure the normal operation of the water supply system. On the other hand, it allows a portion of the water supply from the backup branch pipe 2' to flow into the backwash water pipe 41, opening the backwash water pipe 41. Water with a certain pressure flows from the downstream of the filter 23 in the opposite direction to the filter 23. If the blockage is flushed out, it will flow out with the upstream of the filter 23 and enter the backwash drain pipe 42 for discharge. If the blockage is not flushed out, the water flow is blocked downstream of the filter 23, and the water flow flows into the outlet pipe 12 from at least one other branch pipe 2'.

[0095] Then, it is determined whether the pressure difference between the pressure values ​​of the first pressure sensor 221 and the second pressure sensor 222 in the faulty branch pipe 2 meets the preset range. If so, it means that the blockage on the filter 23 has been flushed away by the backwash water flow and discharged with the backwash drain pipe 42. Then, the fault information of the branch pipe 2 is cleared. Alternatively, the controller controls the first on / off valve 211' and the second on / off valve 212' on other branch pipes 2', the backwash drain pipe on / off valve 421 of the faulty branch pipe 2, and the pressurization on / off valve on the backwash water pipe 41 connected to the faulty branch pipe 2 and at least one other branch pipe 2'. 411 is closed, and the first and second on / off valves 211 and 212 of the original faulty branch pipe 2 are opened, so that the water supply flows back to the original branch pipe 2. If not, it means that the blockage problem of the branch pipe 2 has not been resolved. At this time, the controller controls the backflush drain pipe 42 of the faulty branch pipe 2 and the pressurizing on / off valve 411 on the backflush water pipe 41 connected to at least one other branch pipe 2' to close. The water supply still flows through the spare branch pipe 2. At the same time, the controller starts the first motor 33 and the second motor 34 to rotate the branch pipe 2 that needs to be repaired to the repair position so that maintenance personnel can inspect and repair it.

[0096] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A hydropower station water supply system with intelligent dispatching function, characterized in that, Includes the main pipeline, at least two branch pipelines, and a controller. The main pipeline includes an inlet pipe and an outlet pipe; The branch pipeline is equipped with an on / off component, a pressure detection component, and a filter. The on / off component is used to control the flow of water inside the branch pipeline, and the pressure detection component is used to detect the pressure of the water flow inside the branch pipeline to determine whether the branch pipeline is blocked. A rotating sealing part is provided between the main pipeline and the branch pipeline. The rotating sealing part includes a rotating structure and a sealing structure. The rotating structure rotatably connects the main pipeline and the branch pipeline and is used to drive the branch pipeline to rotate around the main pipeline to the system maintenance position when the branch pipeline is blocked. The sealing structure is used to seal the gap between the main pipeline and the branch pipeline. The on / off assembly, the pressure detection assembly, and the rotating seal are all communicatively connected to the controller. The rotating structure includes a first rotating structure and a second rotating structure; The first rotating structure is disposed on the outer surface of the end of the water inlet pipe and is rotatably connected to the end of the water inlet pipe. The branch pipe inlet passes through the first rotating structure and communicates with the end of the water inlet pipe. The second rotating structure is disposed on the outer surface of the starting end of the water outlet pipe and is rotatably connected to the starting end of the water outlet pipe. The outlet of the branch pipe is connected to the starting end of the water outlet pipe through the second rotating structure. The first rotating structure includes a first fixed toothed ring fixed to the outer surface of the end of the water inlet pipe, a first water pipe sleeve sleeved on the outer surface of the end of the water inlet pipe, and a first transmission toothed ring. The first transmission toothed ring meshes with the first fixed toothed ring for transmission. The branch pipe inlet passes through the first water pipe sleeve and communicates with the end of the water inlet pipe. The second rotating structure includes a second fixed gear ring fixed to the outer surface of the starting end of the water outlet pipe, a second water pipe sleeve sleeved on the outer surface of the starting end of the water outlet pipe, and a second transmission gear ring. The second transmission gear ring meshes with the second fixed gear ring for transmission. The branch pipe outlet passes through the second water pipe sleeve and communicates with the starting end of the water outlet pipe. The rotating sealing part further includes a first motor and a second motor. The first motor includes a first output gear, which is connected to the first transmission gear ring. The second motor includes a second output gear, which is connected to the second transmission gear ring. Both the first motor and the second motor are communicatively connected to the controller. The first rotating structure and the second rotating structure rotate synchronously through the transmission of the first motor and the second motor, thereby driving the branch pipeline to the system maintenance position. The sealing structure includes a first sealing structure and a second sealing structure; The first sealing structure includes a first annular groove and a plurality of sealing rings. The first annular groove is disposed at the end of the water inlet pipe, and the water outlet of the water inlet pipe is located inside the first annular groove. The sealing rings are sleeved on the outer surface of the water inlet pipe, located on both sides of the first annular groove and the inlet of the branch pipe, and are sealed and fitted to the inner wall of the first water pipe sleeve. The second sealing structure includes a second annular groove and several sealing rings. The second annular groove is disposed at the starting end of the water outlet pipe, and the water inlet of the water outlet pipe is located inside the second annular groove. The sealing rings are sleeved on the outer surface of the water outlet pipe, located on both sides of the second annular groove and the outlet of the branch pipe, and are sealed and fitted to the inner wall of the second water pipe sleeve.

2. The water supply system for a hydropower station with intelligent dispatching function as described in claim 1, characterized in that, The on / off assembly includes a first on / off valve and a second on / off valve, and the pressure detection assembly includes a first pressure sensor and a second pressure sensor. The first on / off valve, the first pressure sensor, the filter, the second pressure sensor, and the second on / off valve are detachably connected to the branch pipeline in sequence along the water flow direction; The first on / off valve, the first pressure sensor, the second pressure sensor, and the second on / off valve are all communicatively connected to the controller.

3. A hydropower station water supply system with intelligent dispatching function as described in claim 2, characterized in that, The first pressure sensor and the second pressure sensor are symmetrically distributed on the upstream and downstream sides of the filter with the filter as the center.

4. A hydropower station water supply system with intelligent dispatching function as described in claim 2, characterized in that, The branch pipeline is also equipped with a backflush structure, which includes a backflush water pipe and a backflush drain pipe. Any two of the branch pipes are connected to the backwash water pipe, and both ends of the backwash water pipe are located downstream of the filter and between the second on / off valve, with the pressure on / off valve located on the backwash water pipe. The starting end of the backflush drain pipe is located between the first on / off valve and the second on / off valve and is connected to the branch pipe. The backflush drain pipe is equipped with a backflush drain pipe on / off valve. Both the pressurized on / off valve and the backflush drain pipe on / off valve are communicatively connected to the controller.

5. A water supply method for a hydropower station with intelligent dispatching function, characterized in that, The water supply system of a hydropower station with intelligent dispatching function as described in any one of claims 1-3 includes the following steps: Step S1: Obtain the pressure signals upstream and downstream of the filter in a branch pipeline of the hydropower station's technical water supply system under real-time operating conditions; Step S2: Determine whether the pressure difference between the measured pressure signal upstream of the filter and the pressure signal downstream of the filter meets the preset range; If the conditions are not met, the branch pipeline is determined to be faulty. The on / off component of the faulty branch pipeline is shut off, while the on / off component of at least one other branch pipeline is turned on. The rotating structure is controlled to rotate the faulty branch pipeline to the system maintenance position.

6. A water supply method for a hydropower station with intelligent dispatching function, characterized in that, The water supply system for hydropower stations with intelligent dispatching function as described in claim 4 includes the following steps: Step S1: Obtain the pressure signals upstream and downstream of the filter in a branch pipeline of the hydropower station's technical water supply system under real-time operating conditions; Step S2: Determine whether the pressure difference between the measured pressure signal upstream of the filter and the pressure signal downstream of the filter meets the preset range; If the conditions are not met, the branch pipeline is determined to be faulty. The on / off component of the faulty branch pipeline is closed, the on / off component of at least one other branch pipeline is opened, the backflush drain valve on the backflush drain pipe corresponding to the faulty branch pipeline is opened, the pressurizing valve on the backflush water pipe connecting the faulty branch pipeline with at least one other branch pipeline is opened, and the on / off components on other branch pipelines connected to the backflush water pipe are opened simultaneously. Determine whether the pressure difference between the downstream pressure signal and the upstream pressure signal of the filter in the branch pipeline with the fault meets the preset range; If so, then clear the fault information of the branch pipeline, and / or close the backflush drain valve on the backflush drain pipe corresponding to the faulty branch pipeline, close the on / off components on other branch pipelines, and close the pressurization valve on the backflush pipe. If not, close the backflush drain valve on the backflush drain pipe corresponding to the faulty branch pipe and the pressurization valve on the corresponding backflush water pipe, and control the rotating structure to rotate the faulty branch pipe to the system maintenance position.

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