WEDGE WIRE SCREEN

WORKING PRINCIPLE

Wedge wire screens are used in a variety of applications, including filtering and separation processes. They are made up of a series of V-shaped wires that are welded together at an angle, creating a continuous slot that allows fluid or gas to pass through while filtering out unwanted particles.

The working principle of wedge wire screens is based on the concept of filtration through a barrier. When the fluid or gas passes through the continuous slot created by the V-shaped wires, the larger particles are filtered out and separated from the desired material. This is because the larger particles are unable to pass through the narrow slot and become trapped on the surface of the screen.

The size of the slot, as well as the angle and shape of the V-shaped wires, can be customized to meet the specific requirements of each application. This allows wedge wire screens to be used in a wide range of industries, including oil and gas, water treatment, food and beverage, and pharmaceuticals.

In summary, the working principle of wedge wire screens is based on the concept of filtration through a barrier, with the V-shaped wires creating a continuous slot that allows fluid or gas to pass through while filtering out unwanted particles.

 

The wedge wire screen consists of surface profiles and support profiles. Surface profiles, usually v-shaped wires, are wrapped and welded onto support profiles. The distance between the surface profiles is controlled very accurately, as it forms the slot through which the filtrate flows. The direction of the flow is determined by the position of V-shaped wires (surface profiles) in relation to the support profiles. Wedge wires screens are either flow-out-to-in or flow-in-to-out.

ADVANTAGES

• Its uniform filter slots and high precision ensure the effective retention of filter medium.
• Wedge wire screen has a larger circulation area compared with other screens.
• The tiny gaps between wedge wires form a smooth wedge-shaped cross section, which makes sure no dead ends, excellent resistance to block and easy to backwash (blow wash).
• It has high mechanical strength and can withstand high pressure drop.
• It is made of superior stainless steel wires (SUS304 and 316L) with strong corrosion resistance and high temperature resistance performances and can totally adapt to various harsh environment
• It adapts to different forms of fluid direction with high strength, large flow and high pressure resistance performance.
• It maintains stable filtration accuracy and can be reused repeatedly and work reliably.

 

KEY FACTORS AFFECTING WEDGE WIRE SCREEN DESIGN IN WATER INTAKE SYSTEMS

Wedge wire screens are commonly used in water intake systems to filter out unwanted debris and sediment from the water. The design of these screens is critical to their effectiveness, and there are several key factors that must be considered in their design. Here are some of the factors that can affect wedge wire screen design in water intake systems:

1. Water flow rate: The flow rate of the water being filtered is a critical factor in the design of wedge wire screens. The screen must be designed to allow the required flow rate through while still filtering out the desired particles.
2. Particle size: The size of the particles being filtered is another important consideration. The slot size of the wedge wire screen must be carefully chosen to ensure that it is small enough to filter out the desired particles but not so small that it becomes clogged or difficult to maintain.
3. Water quality: The quality of the water being filtered can also affect the design of the wedge wire screen. For example, if the water contains high levels of sediment or debris, a screen with a larger slot size may be required to prevent clogging.
4. Screen location: The location of the screen within the water intake system can also affect its design. Screens located at the intake point may need to be designed to withstand higher water velocities and pressures, while screens located downstream may need to be designed to prevent clogging or damage from debris.
5. Maintenance requirements: Finally, the maintenance requirements of the wedge wire screen must also be considered in its design. Screens that are difficult to access or require frequent cleaning may not be practical in some applications.

Overall, the design of wedge wire screens in water intake systems requires careful consideration of these and other factors to ensure that they are effective in filtering out unwanted particles while still allowing for efficient water flow.