Water Intake Screen Vs Water Outtake Screen
Definition and structure
Internal water inlet means that water enters from the inside of the screen basket.
The screen basket is usually equipped with an inlet and an outlet. Water flows in from the inlet, passes through the screen and then flows out from the outlet after being filtered.
Advantages
- High filtration efficiency: The water flow passes through the screen for a long time, which increases the contact time between impurities and the screen and improves the filtration effect
- Easy to clean: The screen basket can be taken out as a whole, which is convenient for thorough cleaning and maintenance.
- Compact structure: The design is relatively simple and occupies less space, which is suitable for occasions with limited space.
Disadvantages
- High water flow resistance: Since the water flow needs to pass through the entire screen basket, it may cause a certain head loss.
- High requirements for inlet water quality: If the inlet water contains a large number of large particles of impurities, it may clog the screen and affect normal operation.
Application scenarios
Commonly used in sewage treatment, chemical wastewater treatment and other occasions that require high-efficiency filtration.
External water inlet means that water flows in from the outside of the screen basket and then flows out after being filtered through the screen.
The outside of the screen basket is usually equipped with a water inlet trough or water inlet pipe, and the water flows along the outer wall of the screen basket and enters the inside.
Advantages
- Even distribution of water flow: The external water inlet method can make the water flow more evenly distributed on the screen, reducing the possibility of local blockage.
- Small head loss: The water flow path is relatively short, which reduces the head loss and improves the system efficiency.
- Strong adaptability: It can handle impurities with larger particles and has relatively low requirements for the quality of the inlet water.
Disadvantages
- Difficult to clean: Due to the complex external structure of the screen basket, cleaning and maintenance are relatively inconvenient.
- Large footprint: The design is relatively complex and occupies a large space, which is not suitable for occasions with limited space.
Application scenarios
Commonly used in water supply treatment, industrial circulating water systems and other occasions with high requirements for water flow distribution and head loss.
Summary
The internal water inlet screen basket is more suitable for occasions where high-efficiency filtration is required and space is limited, but attention should be paid to the quality of the inlet water and maintenance and cleaning.
The external water inlet screen basket is more suitable for occasions with high requirements for water flow distribution and head loss, but the convenience of cleaning and maintenance needs to be considered.
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Grace
Email: grace@filtrationchina.com
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