Integrated rectifier flowmeter

The porous rectification throttling device is developed based on the standard orifice plate. The working principle of the standard throttling device is based on Bernoulli equation and fluid continuity equation. When the fluid passes through the porous rectification throttling device, the fluid velocity increases, resulting in a decrease in static pressure. This creates a static pressure difference before and after the porous rectification throttling device, and the measurement of fluid flow rate is achieved by measuring the differential pressure.

Performance characteristics:

High measurement accuracy: After real flow calibration, the sensor accuracy can reach ± 0.3% and ± 0.5%, suitable for trade measurement occasions. Geometric dimension inspection, sensor accuracy can reach ± 0.5%, ± 1.0%, suitable for process control applications.

Low requirements for straight pipe sections: In most cases, straight pipe sections can be as small as 0.5D~2D

Low permanent pressure loss: Under the same operating conditions, compared with traditional throttling devices, the pressure loss is reduced by 70%

Range ratio width: The conventional measurement range ratio is 10:1, and selecting appropriate parameters can achieve a range ratio of 30:1 or higher.

Good repeatability and long-term stability: Multiple flow holes distribute force without sharp angle wear, and its beta value remains unchanged for a long time, with excellent long-term stability; No movable parts, the lifespan is 5-10 times longer than traditional throttling devices

Resistant to dirt and not suitable for blockage: The porous symmetrical balance design reduces the formation of turbulent shear forces and eddies, greatly reducing the formation of dead zones, ensuring the smooth passage of dirty media through multiple holes, and reducing the chance of fluid holes being blocked.

Wide measurement range: the minimum Reynolds number can be below 200, and the maximum Reynolds number is greater than 107; The beta value can be selected from 0.25 to 0.9.