Self-Acting Dredging Structure for Irrigation Siltation
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Solution Overview
Problem
Existing dredging and drainage structures for irrigation areas face inefficiencies due to manual or mechanical processes, leading to reduced drainage efficiency, increased labor costs, and unresolved siltation issues.
Innovation Solution
A self-acting dredging and drainage structure featuring a first tube body with a trash rack, partition body, and contraction and diversion device, which includes inclined planes and a disturbance device to enhance water flow and sediment removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual or mechanical equipment is used to remove siltation, then siltation can be cleaned, but drainage efficiency is reduced and labor cost increases
Solution Approach 1:
The patent implements self-acting dredging by utilizing the irrigation water flow itself to drive the silt removal process. The water flow automatically activates the disturbance device and transports silt through the contraction and diversion device without requiring manual intervention or external power sources, thus maintaining high drainage efficiency while effectively cleaning siltation.
Solution Approach 2:
The patent employs hydraulic principles by using water flow to power the silt removal mechanism. The contraction and diversion device leverages the kinetic energy of flowing water to create the necessary flow velocity for silt transport, converting hydraulic energy into mechanical action for dredging without additional energy input.
2Reliability
If silt box is replaced manually, then siltation is removed, but labor cost increases and drainage efficiency decreases
Solution Approach 1:
The system automatically performs silt removal operations using the irrigation water flow to activate and operate the dredging mechanism. The water flow itself serves as both the operational medium and the power source, eliminating the need for manual box replacement and simplifying operation while maintaining effective siltation removal.
3Productivity
If drainage continues with full silt box, then drainage process is maintained, but siltation in drainage outlet worsens
Solution Approach 1:
The patent enables continuous drainage operation while simultaneously and continuously removing siltation. The self-acting mechanism operates throughout the drainage process, preventing silt accumulation in the outlet while maintaining uninterrupted water flow, thus eliminating the harmful effect of siltation without interrupting drainage productivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The structure achieves high drainage efficiency, effective scouring and siltation, and reduced labor costs through automated processes, preventing sedimentation and extending the device's service life.
Implementation Method 1
a water inlet end side of the first tube body is provided with an inclined plane
Implementation Method 2
the contact surface between an inner wall of the each contraction and diversion pipe and the water is in the form of streamlined or parabolic or other forms of slowing down the water flow resistance
Data Source
AI summary
A self-acting dredging and drainage structure for a plain river network irrigation area is provided. The structure includes a first tube body, a water inlet end side of the first tube body is provided with a trash rack, a partition body is provided in the first tube body, and a water outlet end side of the first tube body is provided with a contraction and diversion device. The contraction and diversion device divides a water outlet end of the first tube body into an upper water outlet side and a lower water outlet side, and the contraction and diversion device includes no less than one arranged contraction and diversion pipe; and the upper water outlet side has first water outlets and second water outlets.