A flow control device and operation method of a large-scale water transfer, diversion and lifting system
A technology of system flow and operation method, which is applied in the field of flow control devices for large-scale water transfer and lifting systems, can solve problems such as large differences in pump lifting lift, mismatch between upstream and downstream flow, and difference in water pump flow, and achieve good test results , Reduce the cost of electricity usage and meet the production demand
Active Publication Date: 2021-08-17
YUNNAN DAHONGSHAN PIPELINE
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Problems solved by technology
[0003] Most water diversion projects at home and abroad are designed with water pumping stations. In the actual operation process, due to the existence of wet seasons and dry seasons, the water levels of the inlet pools and outlet pools of the pumps may vary greatly, and there may be tens of meters. This will lead to a large difference in the actual lifting head of the pump in the wet season and the dry season, and due to the difference in working conditions and the differences in equipment manufacturing and installation, the actual flow of the pump will be different. Long-term operation will lead to upstream and downstream flow. Mismatch
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Embodiment 1
[0018] A flow control device for a large-scale water transfer and lifting system, such as figure 1 As shown, it includes an inlet pool 1, an outlet pool 3 and a controller 8, the inlet pool 1 and the outlet pool 3 are connected by a water pipe 4, and the end of the water pipe 4 near the inlet pool 1 is connected with a main pump 2, The main pump 2 is connected to the motor 5, the motor 5 is electrically connected to the controller 8, the inlet pool 1 is located in the pumping station of the current stage, and provides water source for the main pump 2, and the outlet pool 3 is located in the lower pumping station , used to receive the water provided by the main pump 2, the water pipe 4 is used to transport water from the inlet pool 1 to the outlet pool 3, to realize the delivery of water resources, and the main pump 2 is used to transfer the water in the inlet pool 1 Inhaled into the water lifting pipe 4, the motor 5 is used to provide power for the main pump 2, and it is chara...
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The invention relates to the technical field of pipeline water transfer and transfer resources, in particular to a flow control device and operation method for a large-scale water transfer and transfer system, and its purpose is to overcome the deficiencies of the prior art and provide a large-scale water transfer and transfer device The system flow control device and operation method, according to the change of the pressure difference between the inlet and outlet of the water pump, the difference of the water pump and the inconsistency of the flow rate of each main pump, can effectively adjust the flow rate of the pumping station by adjusting the operating frequency of the main pump motor. Function: a first liquid level gauge is installed in the inlet pool, a second liquid level gauge is installed in the outlet pool, a flow meter is installed on the water lifting pipe, a frequency converter is installed at the front end of the motor, and the The first liquid level meter, the second liquid level meter, the flow meter and the frequency converter are electrically connected to the controller; the beneficial effect is that the problem of inconsistency of the flow rate of the water pumping station in the dry season and the wet season is solved.
Description
technical field [0001] The invention relates to the technical field of pipeline water transfer and transfer resources, in particular to a flow control device and an operation method for a large-scale water transfer, transfer and lifting system. Background technique [0002] Cross-basin water transfer is a water transfer method for the rational development and utilization of water resources. It refers to the water-rich areas of a certain river basin replenishing water sources to the water-scarce areas of other river cities. Water transfer is often done through pumping stations. At present, my country's inter-basin water diversion projects have reached a considerable scale. The Wanjiazhai Yellow River Diversion Project in Shanxi Province is a cross-basin water diversion project. Water is diverted from the Wanjiazhai Reservoir of the Yellow River to supply water to Taiyuan, Datong and Pingshuo respectively. The Dongshen Project draws Dongjiang water from Qiaotou Town, Donggua...
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IPC IPC(8): G05D27/02
CPCG05D27/02
Inventor 陶踔李剑锋张向波聂正华周江松李剑勇李易王辉赵增佳
Owner YUNNAN DAHONGSHAN PIPELINE