Water distribution system for a pump station

Abstract

This invention discloses a water diversion system for a pumping station, including a pumping station unit. The pumping station unit integrates a bidirectional pressure pump, a bidirectional flow control parameter setting module, a flow control valve group, and a bidirectional cross-connection pipeline. The bidirectional flow control parameter setting module is signal-connected to the bidirectional pressure pump. The system synchronously acquires the flow rates at both ends through a water diversion flow rate analysis unit and a segment output flow rate processing unit. The system analyzes the flow rate difference between the inlet and outlet ends through a water level difference adjustment unit and sends an adjustment signal to the flow control valve group to automatically adjust the valve opening. This achieves precise control of the water flow rate on non-horizontal installation surfaces, avoiding flow deviations caused by installation surface inclination. Subsequently, the central control unit of the water station receives the pre-opening adjustment signal output by the flow control valve group and acquires the synchronous flow parameters a second time. Based on the flow fluctuation difference before and after the opening adjustment, the system calculates subsequent correction parameters and sends them back to the bidirectional pressure pump for secondary power adjustment until the upstream and downstream flow rates stabilize.

Description

Technical Field

[0001] This invention belongs to the field of drainage system technology, and specifically relates to a water diversion system for a pumping station. Background Technology

[0002] Pumping stations, leveraging the flexibility and plasticity of water and its natural tendency to flow downhill, fully utilize existing channels as water transfer carriers to allocate water resources on demand. Intelligent bidirectional water transfer pumping stations regulate water levels, connect various water bodies, gradually extend the water delivery distance, and precisely control the water flow direction using channel routing, ensuring it flows along a planned path. Existing water transfer systems, during commissioning, suffer from instantaneous flow differences between pump input and output. When pipeline layouts are not horizontal, upstream and downstream water levels fluctuate, or pipeline resistance changes, flow imbalances easily occur, leading to pump instability, increased energy consumption, and even cavitation or water hammer. Therefore, in actual water transfer processes, lag is common, making it difficult to quickly adapt to changes in water level or flow fluctuations, thus affecting stability. To address this, we propose a water transfer system for pumping stations. Summary of the Invention

[0003] This invention provides a water diversion system for a pumping station to solve the problems mentioned in the background art.

[0004] This invention provides the following technical solution: a water diversion system for a pumping station, comprising a pumping station unit, wherein the pumping station unit integrates a bidirectional pressure pump, a bidirectional flow control setting module, a flow control valve group, and a bidirectional crossover pipeline, wherein the bidirectional flow control setting module is signal-connected to the bidirectional pressure pump, and both the output and input ends of the bidirectional pressure pump are fixedly connected to the bidirectional crossover pipeline, and the flow control valve group controls the water flow on a non-horizontal mounting surface between the bidirectional pressure pump and the bidirectional crossover pipeline, and the bidirectional flow control setting module includes a bidirectional water diversion control unit. The system includes a water flow rate analysis unit, a segment output velocity processing unit, and a water level difference adjustment unit. The bidirectional water flow control unit is located outside the bidirectional pressure pump and is signal-connected to the bidirectional pressure pump. The water flow rate analysis unit and the segment output velocity processing unit are installed at the output and input ends of the bidirectional pressure pump to obtain the synchronous flow rate at the output and input ends of the bidirectional pressure pump. The water level difference adjustment unit sends an adjustment signal to the flow rate control valve group based on the obtained flow rate, and the flow rate control valve group adjusts and calibrates the opening degree of the bidirectional pressure pump.

[0005] A further improvement of the present invention is that both the output and input ends of the bidirectional cross-connection pipeline are fixedly connected to electromagnetic blocking valves, which are used to connect adjacent bidirectional cross-connection pipelines installed on the water regulating surface.

[0006] A further improvement of the present invention is that the flux control valve group includes a signal receiving unit, a switching processing unit, an electric actuator, and a debugging parameter output unit. The signal receiving unit is signal-connected to the water level difference debugging unit. After receiving the signal input from the water level difference debugging unit through the signal receiving unit, the switching processing unit analyzes the synchronous flow difference between the output and input ends of the bidirectional pressure pump and outputs a pre-opening debugging signal to the electric actuator. The debugging parameter output unit acquires the current debugging signal and transmits it to the central control terminal of the water station for subsequent correction debugging parameters.

[0007] A further improvement of the present invention is that the signal receiving end of the bidirectional pressure pump is connected to the central control end of an external water station. The central control end of the water station is used to receive the pre-opening adjustment signal output by the flow control valve group, and to acquire the synchronous flow parameters measured by the bidirectional pressure pump for the second time. Then, based on the fluctuation difference of the synchronous flow parameters before and after the opening adjustment, the power adjustment parameters of the bidirectional pressure pump are calculated for subsequent correction.

[0008] A further improvement of the present invention is that every two bidirectional pressure pumps are configured as a group, and the two groups of bidirectional pressure pumps are connected to the upstream and downstream of the water diversion project via the bidirectional crossover pipeline.

[0009] A further improvement of the present invention is that every four bidirectional pressure pumps are set as a group, and the bidirectional pressure pumps in two groups are installed inside the same pumping station unit. The bidirectional pressure pumps in the two groups are symmetrically distributed, and one bidirectional pressure pump in each group is connected to one bidirectional pressure pump in the other group via the bidirectional crossover pipeline to the upstream and downstream of the water diversion.

[0010] A further improvement of the present invention is a method for using a water diversion system of a pumping station, comprising the following steps: Step S1: Place the two sets of pump station units at the upstream and downstream installation points of the water level, respectively, and select the middle excavation position when the ground surface gradually rises to place the pump station units into the embankment and complete the fixing. Step S2: Place the input end of the bidirectional pressure pump in the low-level pumping station unit at the low-level surface water flow location through a bidirectional jumper pipe and an electromagnetic blocking valve. Connect the input end of the bidirectional pressure pump in the high-level pumping station unit to the output end of the bidirectional pressure pump in the low-level pumping station unit, and place the output end of the bidirectional pressure pump in the high-level pumping station unit at the low-level surface water flow location. Step S3: After installation, the water flow rate analysis unit and the segment output flow rate processing unit installed at the output and input ends of the bidirectional pressure pump respectively obtain the synchronous flow rate at the output and input ends of the bidirectional pressure pump. Then, the flow rate control valve group analyzes the difference between the synchronous flow rate at the output and input ends of the bidirectional pressure pump and pre-adjusts the opening degree of the electromagnetic blocking valve. At the same time, the adjustment signal is sent to the central control terminal of the water station. Step S4: After the central control unit of the water station obtains the current pre-opening adjustment signal, it obtains the synchronous flow parameters read by the water flow analysis unit for the second time. Based on the fluctuation difference of the synchronous flow parameters, it obtains the subsequent correction and adjustment parameters, and returns them to the bidirectional pressure pump to adjust its delivery power for the second time until the upstream and downstream input flow rates of the pump station are stable.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting up a bidirectional pressure pump and a bidirectional cross-pipeline, the system can realize two water regulation modes, forward and reverse, between upstream and downstream. In actual use, the flow rate at both ends is synchronously obtained by the water regulation flux analysis unit and the segment output flow rate processing unit, respectively. The flow rate difference between the inlet and outlet ends is analyzed by the water level difference adjustment unit, and an adjustment signal is sent to the flux control valve group to automatically adjust the valve opening. This achieves precise control of the water flow on non-horizontal installation surfaces and avoids flow deviation caused by the tilt of the installation surface. Then, the central control terminal of the water station receives the pre-opening adjustment signal output by the flux control valve group and obtains the synchronous flow parameters a second time. The subsequent correction parameters are calculated based on the flow fluctuation difference before and after the opening adjustment and sent back to the bidirectional pressure pump for secondary power adjustment until the upstream and downstream flow rates are stable, thereby ensuring that the upstream and downstream water regulation after adjustment will not produce large fluctuations. Attached Figure Description

[0012] Figure 1 This is a structural composition diagram of the present invention; Figure 2 This is a structural composition diagram of the present invention; Figure 3 This is a schematic diagram of Embodiment 3 of the present invention; Figure 4 This is a schematic diagram of Embodiment 4 of the present invention; Figure 5 This is a schematic diagram of Embodiment 5 of the present invention; Figure 6 This is a schematic diagram of Embodiment 6 of the present invention; Figure 7 This is a schematic diagram of Embodiment 7 of the present invention.

[0013] In the diagram: 1. Pump station unit; 2. Two-way pressure pump; 3. Two-way flow control setting module; 31. Two-way water regulation control unit; 32. Water regulation flux analysis unit; 33. Segment output flow rate processing unit; 34. Water level difference adjustment unit; 4. Flux control valve group; 5. Two-way cross-pipeline; 51. Electromagnetic blocking valve. Detailed Implementation

[0014] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Example 1 Please see Figure 1 A water diversion system for a pumping station includes a pumping station unit 1. The pumping station unit 1 integrates a bidirectional pressure pump 2, a bidirectional flow control setting module 3, a flow control valve group 4, and a bidirectional crossover pipeline 5. The bidirectional flow control setting module 3 is signal-connected to the bidirectional pressure pump 2. Both the output and input ends of the bidirectional pressure pump 2 are fixedly connected to the bidirectional crossover pipeline 5. The flow control valve group 4 controls the water flow on a non-horizontal installation surface between the bidirectional pressure pump 2 and the bidirectional crossover pipeline 5. The bidirectional flow control setting module 3 includes a bidirectional water diversion control unit 31 and a water diversion flow rate control unit. The analysis unit 32, the segment output flow rate processing unit 33, and the water level difference adjustment unit 34, and the bidirectional water control unit 31 are located outside the bidirectional pressure pump 2 and are connected to the bidirectional pressure pump 2 via signal. The water flow rate analysis unit 32 and the segment output flow rate processing unit 33 are installed at the output and input ends of the bidirectional pressure pump 2 to obtain the synchronous flow rate at the output and input ends of the bidirectional pressure pump 2. The water level difference adjustment unit 34 sends an adjustment signal to the flow rate control valve group 4 based on the obtained flow rate, and the flow rate control valve group 4 adjusts and calibrates the opening degree of the bidirectional pressure pump 2.

[0016] In this embodiment, the present invention enables the system to achieve both forward and reverse water regulation modes between upstream and downstream by setting up a bidirectional pressure pump 2 and a bidirectional cross-pipeline 5. Specifically, during operation, the flow rate at both ends is first synchronously acquired by the water regulation flux analysis unit 32 and the segment output velocity processing unit 33. The difference in flow rate between the inlet and outlet is analyzed by the water level difference adjustment unit 34, and an adjustment signal is sent to the flux control valve group 4 to automatically adjust the valve opening. This achieves precise control of the water flow rate on non-horizontal installation surfaces, avoiding flow deviations caused by surface inclination. Then, the central control unit of the water station receives the pre-opening adjustment signal output by the flux control valve group 4 and acquires the synchronous flow parameters a second time. Based on the flow fluctuation difference before and after the opening adjustment, subsequent correction parameters are calculated and sent back to the bidirectional pressure pump for secondary power adjustment until the upstream and downstream flow rates stabilize, thus ensuring that the upstream and downstream water regulation after adjustment does not produce significant fluctuations. Specifically, the water regulation flux analysis unit 32 uses a microcontroller, the segment output velocity processing unit 33 uses a flow velocity sensor, and the water level difference adjustment unit 34 uses an electromagnetic valve push rod.

[0017] In this embodiment, both the output and input ends of the bidirectional cross-pipeline 5 are fixedly connected to electromagnetic blocking valves 51. The electromagnetic blocking valves 51 are used to connect adjacent bidirectional cross-pipelines 5 installed on the water regulating installation surface.

[0018] In this embodiment, the flow control valve group 4 includes a signal receiving unit, a switching processing unit, an electric actuator, and a debugging parameter output unit. The signal receiving unit is signal-connected to the water level difference debugging unit 34. After receiving the signal input from the water level difference debugging unit 34 through the signal receiving unit, the switching processing unit analyzes the synchronous flow difference between the output and input ends of the bidirectional pressure pump 2 and outputs a pre-opening debugging signal to the electric actuator. The debugging parameter output unit obtains the current debugging signal and sends it to the central control terminal of the water station for subsequent correction of debugging parameters.

[0019] In this embodiment, the signal receiving end of the bidirectional pressure pump 2 is connected to the central control end of the external water station. The central control end of the water station is used to receive the pre-opening adjustment signal output by the flow control valve group 4, and to acquire the synchronous flow parameters measured by the bidirectional pressure pump 2 for the second time. Then, based on the fluctuation difference of the synchronous flow parameters before and after the opening adjustment, the power adjustment parameters of the bidirectional pressure pump 2 are calculated for subsequent correction.

[0020] In this embodiment, every two bidirectional pressure pumps 2 are set as a group, and the two groups of bidirectional pressure pumps 2 are connected to the upstream and downstream of the water diversion through a bidirectional crossover pipeline 5.

[0021] The working principle of this invention is: Step S1: Place the two sets of pump station units 1 at the upstream and downstream installation points of the water level, respectively, and select the middle excavation position when the ground surface gradually rises to place the pump station unit 1 into the embankment and complete the fixing. Step S2: Place the input end of the bidirectional pressure pump 2 in the low-level pumping station unit 1 at the low-level surface water flow location through the bidirectional cross-connection pipe 5 and the electromagnetic blocking valve 51. Connect the input end of the bidirectional pressure pump 2 in the high-level pumping station unit 1 to the output end of the bidirectional pressure pump 2 in the low-level pumping station unit 1, while placing the output end of the bidirectional pressure pump 2 in the high-level pumping station unit 1 at the low-level surface water flow location. Step S3: After installation, the water flow rate analysis unit 32 and the segment output flow rate processing unit 33, which are installed at the output and input ends of the bidirectional pressure pump 2 respectively, obtain the synchronous flow rate at the output and input ends of the bidirectional pressure pump 2. Then, the flow rate control valve group 4 analyzes the difference between the synchronous flow rate at the output and input ends of the bidirectional pressure pump 2 and pre-adjusts the opening degree of the electromagnetic blocking valve 51. At the same time, the adjustment signal is sent to the central control terminal of the water station. Step S4: After the central control unit of the water station obtains the current pre-opening adjustment signal, it acquires the synchronous flow parameters read by the water flow analysis unit 32 for the second time. Based on the fluctuation difference of the synchronous flow parameters, it obtains the subsequent correction and adjustment parameters, and returns them to the bidirectional pressure pump 2 for secondary adjustment of its delivery power until the upstream and downstream input flow rates of the pump station are stable.

[0022] Example 2 Please refer to the accompanying drawings in the instruction manual. Figure 2 In this embodiment, when the water diversion operation is carried out at multiple heights, every four bidirectional pressure pumps 2 are set as a group. The bidirectional pressure pumps 2 in the same group are installed inside the same pump station unit 1. The bidirectional pressure pumps 2 in the same group are symmetrically distributed. One bidirectional pressure pump 2 in each group is connected to one bidirectional pressure pump 2 in the other group through a bidirectional crossover pipeline 5 to the upstream and downstream of the water diversion.

[0023] Example 3 Please refer to the accompanying drawings in the instruction manual. Figure 3 In this embodiment, A is a low-altitude location and B is a high-altitude location. After the pump station is installed on the embankment, the pump station is installed in the middle position where the ground surface gradually rises. The ditches on both sides of the pump station are repaired to be shallow above the ground surface. The downstream water source is transported to the upstream through the lower location 2, so that the water flows upward.

[0024] Example 4 Please refer to the accompanying drawings in the instruction manual. Figure 4In this embodiment, the outlet of the bidirectional pressure pump 2 located at pump station #1 is installed at the same height as the inlet of the bidirectional pressure pump 2 in pump station #2, and the outlet of the bidirectional pressure pump 2 in pump station #2 is installed at the same height as the inlet of the bidirectional pressure pump 2 in pump station #3. In the current state, the water source is transported step by step through the bidirectional pressure pump 2 via the high-span conveying mechanism composed of pump stations #1, #2 and #3.

[0025] Example 5 Please refer to the accompanying drawings in the instruction manual. Figure 5 In this embodiment, a method for installing a pumping station to a small river with perennial flow is also provided. First, a channel is dug to connect directly to the small river. Water is diverted from the channel on bank A to the river, and then water is diverted from the river to the channel on bank B. The channel on bank B is built at any suitable location. Then, the water diversion flow of the pumping station is kept consistent. When water is needed, water is simultaneously pumped from the small river by bidirectional pressure pumps 2 in pumps #1 and #2. When floods require drainage, water is simultaneously discharged into the small river by bidirectional pressure pumps 2 in pumps #1 and #2.

[0026] Example 6 Please refer to the accompanying drawings in the instruction manual. Figure 6 In this embodiment, an installation method is also provided for pumping stations to divert water through elevated pipelines to avoid water pollution. Specifically, the bidirectional cross-connection pipeline 5 and electromagnetic blocking valve 51 are removed between the outlet of bidirectional pressure pump 2 in No. 1 and the inlet of bidirectional pressure pump 2 in No. 2. Instead, the pumping is directly connected and transported through elevated pipelines.

[0027] Example 7 Please refer to the accompanying drawings in the instruction manual. Figure 6 In this embodiment, a method is also proposed to connect previously unconnected water systems by constructing a water conveyance canal between lakes, reservoirs, and rivers. Specifically, after the bidirectional pressure pump 2 in #1 and the bidirectional pressure pump 2 in #2 are directly set horizontally, the outlet of the bidirectional pressure pump 2 in #1 is directly connected to the inlet of the bidirectional pressure pump 2 in #2, which will facilitate the back-and-forth adjustment of water usage.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A water diversion system for a pumping station, comprising a pumping station unit (1), characterized in that: The pump station unit (1) integrates a bidirectional pressure pump (2), a bidirectional flow control setting module (3), a flow control valve group (4), and a bidirectional cross-connection pipeline (5). The bidirectional flow control setting module (3) is signal-connected to the bidirectional pressure pump (2). Both the output and input ends of the bidirectional pressure pump (2) are fixedly connected to the bidirectional cross-connection pipeline (5). The flow control valve group (4) controls the water flow on the non-horizontal installation surface between the bidirectional pressure pump (2) and the bidirectional cross-connection pipeline (5). The bidirectional flow control setting module (3) includes a bidirectional water regulation control unit (31), a water regulation flow analysis unit (32), and a segment output. The flow rate processing unit (33) and the water level difference adjustment unit (34) are provided. The bidirectional water regulation control unit (31) is located outside the bidirectional pressure pump (2) and is connected to the bidirectional pressure pump (2) by signal. The water flow rate analysis unit (32) and the segment output flow rate processing unit (33) are installed at the output end and input end of the bidirectional pressure pump (2) to obtain the synchronous flow rate at the output end and input end of the bidirectional pressure pump (2). The water level difference adjustment unit (34) sends an adjustment signal to the flow rate control valve group (4) according to the obtained flow rate. The flow rate control valve group (4) adjusts and calibrates the opening degree of the bidirectional pressure pump (2).

2. The water diversion system for a pumping station according to claim 1, characterized in that: Both the output and input ends of the bidirectional cross-pipeline (5) are fixedly connected to electromagnetic blocking valves (51), which are used to connect adjacent bidirectional cross-pipelines (5) installed on the water regulating installation surface.

3. The water diversion system for a pumping station according to claim 1, characterized in that: The flux control valve group (4) includes a signal receiving unit, a switching processing unit, an electric actuator, and a debugging parameter output unit. The signal receiving unit is connected to the water level difference debugging unit (34). After receiving the signal input from the water level difference debugging unit (34) through the signal receiving unit, the switching processing unit analyzes the synchronous flow difference between the output and input ends of the bidirectional pressure pump (2) and outputs a pre-opening debugging signal to the electric actuator. The debugging parameter output unit obtains the current debugging signal and transmits it to the central control terminal of the water station for subsequent correction debugging parameters.

4. The water diversion system for a pumping station according to claim 1, characterized in that: The signal receiving end of the bidirectional pressure pump (2) is connected to the central control end of the external water station. The central control end of the water station is used to receive the pre-opening adjustment signal output by the flow control valve group (4), and to obtain the synchronous flow parameters measured by the bidirectional pressure pump (2) for the second time. Then, based on the fluctuation difference of the synchronous flow parameters before and after the opening adjustment, the power adjustment parameters of the bidirectional pressure pump (2) are calculated for subsequent correction.

5. The water diversion system for a pumping station according to claim 1, characterized in that: Each pair of bidirectional pressure pumps (2) is set as a group, and the two groups of bidirectional pressure pumps (2) are connected to the upstream and downstream of the water diversion through the bidirectional cross-connection pipeline (5).

6. The water diversion system for a pumping station according to claim 1, characterized in that: Four bidirectional pressure pumps (2) are set up as a group. Two bidirectional pressure pumps (2) in the same group are installed inside the same pump station unit (1). The bidirectional pressure pumps (2) in the two groups are symmetrically distributed. One bidirectional pressure pump (2) in each group is connected to one bidirectional pressure pump (2) in the other group through the bidirectional cross-connection pipeline (5) to the upstream and downstream of the water diversion.

7. A method of using a water diversion system for a pumping station according to any one of claims 1-4, characterized in that: Includes the following steps: Step S1: Place the two sets of pump station units (1) at the upstream and downstream installation points of the water level, and select the middle excavation position when the ground surface gradually rises to place the pump station units (1) into the embankment and complete the fixing. Step S2: Place the input end of the bidirectional pressure pump (2) in the low-level pumping unit (1) at the low-level surface water flow location through the bidirectional cross-connection pipe (5) and the electromagnetic blocking valve (51), connect the input end of the bidirectional pressure pump (2) in the high-level pumping unit (1) to the output end of the bidirectional pressure pump (2) in the low-level pumping unit (1), and place the output end of the bidirectional pressure pump (2) in the high-level pumping unit (1) at the low-level surface water flow location. Step S3: After installation, the water flow rate analysis unit (32) and the segment output flow rate processing unit (33) installed at the output and input ends of the bidirectional pressure pump (2) respectively obtain the synchronous flow rate at the output and input ends of the bidirectional pressure pump (2). Then, the flow rate control valve group (4) analyzes the synchronous flow rate difference between the output and input ends of the bidirectional pressure pump (2) and pre-adjusts the opening degree of the electromagnetic blocking valve (51). At the same time, the adjustment signal is sent to the central control terminal of the water station. Step S4: After the central control unit of the water station obtains the current pre-opening adjustment signal, it obtains the synchronous flow parameters read by the water flow analysis unit (32) for the second time. Based on the fluctuation difference of the synchronous flow parameters, it obtains the subsequent correction and adjustment parameters and returns them to the bidirectional pressure pump (2) for secondary adjustment of its transmission power until the upstream and downstream input flow rates of the pump station are stable.

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