AquaShear Coanda Intake Screens
Aquashear Coanda intake screens are designed to provide an extremely low maintenance screening solution for water intakes without the need for any moving parts. This self-cleaning ability together with a high abstracted flow capacity is a function of the shape of the screen and the arrangement of the wedge wires that make up the screen material.
The screens are usually installed on the downstream side of a weir. The river water flows over the top of the screen and clean water and fine silt particles (<1mm) pass through it – larger silt and debris is excluded and deposited downstream. During times of low river flow the screen capacity may be greater than the available water. Under these conditions debris can build up on the lower parts of the screen. This will be washed off the next time the river flow rises above the screen capacity.
Benefits of the Aquashear Coanda hydro intake screens include:
- Self-cleaning under most conditions
- Exclude all silt and debris greater than 1mm diameter
- Eliminate costs of erosion damage and blockage to pipes and machinery
- Increase revenue by maximising flow availability
- Capital cost savings on both new and refurbished schemes, in many cases eliminating the need for a settling tank.
- Can significantly increase plant availability and output
- Negligible maintenance time and costs.
- No moving parts or power requirement.
- Simple and inexpensive to install.
- Can operate at very low temperatures without freezing
