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The design considerations of wedge wire water intake
2020-09-15 By zhaozhao
When designing an intake system, the water intake screen is a critical element to a well-designed system. The entire water intake system is dependent on the functionality of the water intake screen in order to work correctly. If the screen is designed properly, it leads to an efficient system that will reduce maintenance costs over the system’s lifespan. However, cost savings isn’t the only consideration for a good design.
Key qualities of a properly designed water intake system:
• Meets the requirements of the operating environment
• Provides operational efficiency
• Minimizes head loss in the intake system
• Protects aquatic life
There are some design recommendations to consider to design a water intake screen that effectively meets all these capabilities:
1. EARLY INVOLVEMENT OF THE SCREEN MANUFACTURER
Working with the screen manufacturer early in the design phase will prevent issues that can develop later.
2. UNDERSTAND THE TYPES OF INTAKES
- Drum Screen: Drum screens are used in quiet waters where the water current passing the screen is minimal.
- T-intake Screen: The most common installation is for a T-intake screen.
- Half-Barrel Screen: The half-barrel screen is designed for shallow water conditions.
3. WATER DEPTH
The depth of the water at the desired location for the intake’s installation is one of the many factors considered when properly sizing an intake screen.
4. MATERIAL TYPE
5.CAPACITY
How much intake capacity is currently required?
Does redundancy need to be included in the design?
Are there future plans for expansion that will require additional capacity?
Understanding and following these helpful guidelines will provide a good starting point to develop an efficient water intake screen.
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