Segmented Water-Taking Gate with Rotational Control
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Solution Overview
Problem
Existing stoplog gate technologies in hydropower engineering are inefficient and labor-intensive, requiring frequent operation and long times to adjust water depth, leading to high energy consumption and poor operational safety, especially in large-scale hydropower stations with multiple water inlets.
Innovation Solution
A high-efficiency and quick stepless layered water-taking gate device with oppositely arranged gate grooves on a dam, featuring movable gate leaves connected by internode plates, allowing for independent opening and closing of each section using a gantry crane or trolley, and equipped with monitoring instruments for real-time water quality control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional stoplog gate technology is used for layered water taking, then water depth control is achieved, but operation time is excessive (90 times lifting for one orifice) and energy consumption is high
Solution Approach 1:
The gate system is divided into multiple independent gate leaves (first gate leaf, second gate leaf, third gate leaf, etc.) that can be operated independently. Each gate leaf controls a specific water depth layer, allowing rapid adjustment without lifting entire stoplog gates. This segmentation enables the system to achieve stepless layered water taking while reducing operation time from hours to minutes.
Solution Approach 2:
The gate leaves are designed with rotational movement capability around horizontal axes, allowing dynamic adjustment of opening angles (0-90 degrees) to control water flow. The first gate leaf rotates around a first horizontal axis, the second gate leaf around a second horizontal axis, enabling continuous and flexible water depth control without discrete step changes.
2Ease of operation
If traditional stoplog gate technology is used, then water depth control is achieved, but operational complexity increases and safety decreases
Solution Approach 1:
Each gate leaf is equipped with independent driving devices (first driving device, second driving device, third driving device) that automatically control the rotation and positioning of respective gate leaves. The system performs self-adjustment without requiring manual intervention for complex operations, reducing operational complexity while maintaining precise water depth control.
Solution Approach 2:
The gate system integrates multiple functions into a unified structure: the first gate leaf controls upper layer water, the second gate leaf controls middle layer water, and the third gate leaf controls lower layer water. All gate leaves share common support structures (beam, column) while maintaining independent operation capabilities, simplifying the overall control process.
3Temperature
If traditional stoplog gate technology is used for large water depth control, then water depth range is sufficient, but energy consumption increases
Solution Approach 1:
The driving devices for rotating gate leaves utilize hydraulic or pneumatic mechanisms to achieve motion with minimal energy input. The hydraulic cylinders provide controlled rotational movement of gate leaves around horizontal axes, enabling large water depth adjustments (0-90 degree rotation) with significantly lower energy consumption compared to traditional mechanical lifting systems.
Solution Approach 2:
The system controls water depth by changing the rotation angle parameters of gate leaves rather than lifting them vertically. The first gate leaf rotation angle, second gate leaf rotation angle, and third gate leaf rotation angle can be independently adjusted, providing continuous parameter variation for precise water depth control while minimizing energy expenditure.
Data Source
AI summary
The disclosure provides a high-efficient swift stepless layering water intaking gate device, is including setting up the water intaking gate slot of the relative setting of the inlet port both sides on the dam body, its characterized in that: a plurality of sections of door leaves are arranged in the water taking gate groove from bottom to top; all the door leaves in the water intaking gate groove are divided into a group, and the adjacent door leaves are connected by adopting an internode connecting plate to form an integral water intaking gate; or all the gate leaves in the water intake gate groove are divided into a plurality of groups to form a plurality of sets of stop log type water intake gates, each set of stop log type water intake gate is provided with a plurality of sections of gate leaves.