Shandong Linyi Hydraulic Rotating Weir Gate Debugging Site

As an important component of local water conservancy projects, the Linyi Hydraulic Rotary Dam Gate Project in Shandong Province has successfully completed acceptance and been officially handed over to the user unit after months of intensive construction and system debugging. The completion of this project marks a new level of water resource regulation and flood control and drainage capacity in Linyi City, providing intelligent solutions for regional water environment governance.

#1、 Engineering background and technological innovation
Hydraulic rotary weir gate is a hydraulic control device that uses hydraulic drive to achieve gate rotation opening and closing. Its core advantages lie in precise water level control and rapid response to flood situations. Linyi City is located in the transitional zone between the Yimeng Mountain area and the plain, and is susceptible to seasonal floods. The rotary weir gate used this time is designed and manufactured by the enterprise, with a gate width of 8 meters and made of high-strength stainless steel material. The hydraulic system pressure peak can reach 16MPa, and the opening and closing time is controlled within 3 minutes, which is more than 40% more efficient than traditional gates. The technical team also integrates IoT sensors, which can monitor real-time data such as water level and flow rate, and remotely control them through a cloud platform to achieve "unmanned" operation.

2、 Key breakthrough in the debugging phase
During the two month debugging period, the project team focused on solving three major technical challenges:1. Hydraulic synchronicity calibration: By installing high-precision flow distribution valves, the stroke deviation of the dual hydraulic cylinders is controlled within ± 2mm to ensure smooth and unobstructed gate rotation;2. Sealing performance optimization: Using EPDM rubber sealing strips and self compensating compression devices, after 72 hours of continuous testing, the leakage rate is less than 0.1L/m, far exceeding industry standards;3. Joint commissioning of intelligent control system: Data exchange with municipal water conservancy management platform was realized, and automatic opening and closing, water level over limit alarm and other scenarios were successfully simulated under rainstorm mode, with response delay less than 5 seconds.
During the debugging period, a total of 47 individual tests were completed, and 12 joint trial runs were conducted. The final indicators all reached the excellent level of the "Specification for Manufacturing, Installation and Acceptance of Water Resources and Hydropower Engineering Gates" (GB/T14173-2008).

3、 Social benefits and ecological value
This project directly benefits the flood control safety of the main urban area of Linyi and three downstream counties, with a protected area of approximately 120 square kilometers. According to calculations, the dynamic adjustment capability of the rotating barrier gate can increase flood discharge efficiency by 30% during the flood season and reduce waterlogging losses by over 20 million yuan annually. At the same time, its ecological water regulation function can accurately maintain the ecological base flow of the river and improve the self purification ability of the water quality of the tributaries of the Yi River. The head of the local water conservancy bureau said, "This technology not only solves the extensive problem of traditional gates being either fully open or fully closed, but also achieves an ecological dispatch mode of 'fine water flows long' through intelligent algorithms

4、 Operation and Maintenance System and Future Prospects
After the handover, the operating unit will rely on the "Equipment Lifecycle Management System" to carry out daily maintenance, and conduct preventive maintenance such as hydraulic oil cleanliness testing and seal wear assessment every quarter. Next, Linyi City plans to promote similar intelligent barrier gates in five key river basins and explore linkage with meteorological forecasting systems to build a smart flood control system of "forecast warning rehearsal contingency plan". The successful implementation of this project also provides a replicable technological model for the intensive utilization of water resources in northern water scarce cities.

(Note: The technical parameters in the article are based on the publicly available data of hydraulic rotary weir gate products on the China Chemical Trade Network and the case analysis of water conservancy intelligent equipment in the Zhihu column.)

‍