Directed Airburst Pipes for Cleaning Debris on Flat Screens
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Solution Overview
Problem
Existing airburst systems for cleaning flat screens in water intake systems are complex and costly to construct, making it difficult to effectively clear debris from flat screens, especially when they are flat and have low-suction velocity to protect aquatic life.
Innovation Solution
An airburst distribution system with parallel pipes and directors that disperse compressed air from a hydroburst system to clear debris from flat screens, featuring a modular design with adjustable orifices and directors to ensure effective debris removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing airburst systems are used to clean flat screens, then debris removal capability is improved, but system complexity and construction cost increase significantly
Solution Approach 1:
The air distribution system is segmented into multiple parallel pipes with individual orifices, allowing the cleaning function to be distributed across simpler modular components rather than requiring a complex integrated system. Each pipe segment can independently deliver air bursts to specific zones of the screen.
Solution Approach 2:
Parallel air distribution pipes serve as intermediary components between the compressed air source and the screen surface. These pipes with orifices mediate the delivery of air bursts, simplifying the overall system architecture while maintaining effective debris removal capability.
2Productivity
If existing airburst systems are used to clean flat screens, then debris removal capability is improved, but construction cost increases
Solution Approach 1:
The system is divided into simple, manufacturable segments (parallel pipes with orifices) that can be produced using standard fabrication processes. This segmentation enables cost-effective construction while achieving the required debris removal performance.
Solution Approach 2:
The air distribution pipes and orifices are designed as simple, inexpensive components that can be easily manufactured and replaced if needed. This approach reduces construction costs by using economical materials and designs rather than expensive complex systems.
3Object-affected harmful factors
If low-suction velocity is maintained to protect aquatic life, then fish protection is improved, but debris accumulation on screens increases
Solution Approach 1:
The system uses periodic air bursts delivered through the parallel pipes to remove debris accumulation. These periodic cleaning actions occur without requiring continuous high-velocity water flow, thus maintaining low suction velocity for fish protection while periodically clearing debris from the screen surface.
Solution Approach 2:
The mechanical cleaning action of high-velocity water flow is replaced with pneumatic air bursts delivered through the parallel pipe system. This substitution allows debris removal without increasing water suction velocity, thereby protecting aquatic life while preventing debris accumulation.
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 system provides an efficient and cost-effective means to clear debris from flat screens, adaptable to various orientations and flow rates, ensuring effective cleaning without the complexity and high costs associated with traditional trough-type manifolds.
Implementation Method 1
compressed air is released by valves from a tank and is dispersed from the pipe's orifices
Implementation Method 2
the resulting water/airburst from the orifices is directed toward the adjacent flat screen to clear it of debris
Data Source
AI summary
A screen intake system has a body with an open end and a chamber. A flat screen is disposed at the open end of the body. To keep the screen clear of debris, an airburst system has pipes disposed in the chamber. The pipes dispose parallel to one another adjacent the flat screen, and each of the pipes has orifices in a side facing the flat screen. Directors are disposed along the backs of the pipes in a lattice, and each of the directors has a channel in which the pipe disposes. Compressed air released by valves from a tank dispersed from the pipe's orifices. Each of the directors directs the resulting water/airburst from the orifices toward the adjacent flat screen to clear it of debris.