Description
Product details
A vortex flow meter is a type of flow meter that measures the flow of fluids, such as gases and liquids, by detecting the vortices (swirling patterns) created by the fluid as it flows past a bluff body or an obstruction in the flow path. The basic principle behind vortex flow meters is the Kármán vortex street phenomenon. Here's how a vortex flow meter typically works: Bluff Body: The flow meter includes a bluff body or a shedder bar placed in the flow stream. This obstruction creates alternating vortices downstream as the fluid flows past it. Vortex Shedding: As the fluid flows past the bluff body, vortices are alternately shed on either side of the obstruction. The frequency of vortex shedding is proportional to the flow velocity. Sensor: Sensors, such as piezoelectric crystals or pressure sensors, are used to detect the vortices. These sensors pick up the pressure fluctuations caused by the vortex shedding. Signal Processing: The electronic components of the flow meter process the signals from the sensors to determine the frequency of the vortices. This frequency is then correlated with the fluid flow rate. Output: The flow rate information is typically displayed digitally or transmitted as an analog or digital signal for further processing or recording. Vortex flow meters offer several advantages, including: Wide Range of Applications: They can be used for both gases and liquids in various industries such as chemical, petrochemical, oil and gas, water treatment, and more. Low Maintenance: Vortex flow meters generally have no moving parts, reducing the need for maintenance. Accuracy: They can provide accurate flow measurements under certain conditions. Versatility: Vortex flow meters can handle a wide range of flow rates and temperatures.
