SUP-LUGB Vortex flowmeter work on the principle of generated vortex and relation between vortex and flow by theory of Karman and Strouhal, which specialize in measurement of steam, gas and liquid of lower viscosity.
Measuring principle
A fluid flowing with a certain velocity and passing a fixed obstruction generates vortices. The generation of vortices is known as Karman’s Vortices.The frequency of vortex shedding is a direct linear function of fluid velocity and frequency depends upon the shape and face width of bluff body. Since the width of obstruction and inner diameter of the pipe will be more or less constant, the frequency is given by the expression:
f=(St*V)/c*D
A vortex steam flow meter is a device used to measure the flow rate of steam or other fluids in a pipe. It works by measuring the frequency of vortices created by the fluid as it passes through a bluff body in the pipe. The vortex steam flow meter is particularly useful for measuring the flow of steam in power generation plants, where accurate flow measurement is crucial for efficiency and energy savings.
The SUP-LUGB vortex steam flow meter consists of a sensor and a transmitter. The sensor has a bluff body that is placed in the pipe, causing vortices to form downstream of the body. These vortices create pressure fluctuations that are detected by a piezoelectric crystal in the sensor. The transmitter converts the piezoelectric signal into a flow rate measurement that can be used for process control.