The spiral vortex flowmeter can be widely used in petroleum, chemical, electric power, metallurgy, urban gas supply and other industries to measure various gas flows. It is the first choice for oil and gas transmission and metering and trade measurement.
The spiral vortex flowmeter can be widely used in petroleum, chemical, electric power, metallurgy, urban gas supply and other industries to measure various gas flows. It is the first choice for oil and gas transmission and metering and trade measurement.
Rotating Vortex Flowmeter When a fluid passes through a vortex generator consisting of spiral blades, the fluid is forced to rotate vigorously around the body axis to form a vortex. When the fluid enters the diffusion section, the vortex flow is subjected to the recirculation, and the second rotation starts to form a gyro-type vortex precession phenomenon. The precession frequency is proportional to the flow rate and is not affected by fluid physical properties and density. The detecting element measures the secondary rotation precession frequency of the fluid, and thus the flow rate is measured.
The precession vortex flowmeter consists of a sensor and a conversion display. The vortex generator consists of a specific spiral blade that is fixed at the front end of the constricted section of the casing, forcing the fluid to produce a strong swirling flow. The weak display of the weak voltage signal detected by the piezoelectric sensor after the conversion display is amplified, filtered, and shaped into a pulse signal whose frequency is proportional to the flow rate, and then displayed by the display. The display is equipped with an external transmission interface to output various signals. The measured gaseous medium can be compensated for temperature and pressure, converted to volumetric flow under standard conditions, and displayed. The detecting element is mounted near the throat of the dilation tube, and the frequency signal of the vortex precession can be measured by a detecting element such as a thermal/piezoelectric/strain/capacitor or an optical fiber. The sensor includes a vortex generator\detection element\rectifier and housing. The rectifier is fixed at the outlet of the flow meter body, and its function is to eliminate the vortex flow to reduce the influence of the downstream flow state on the meter measurement. The housing is designed as a shaped flow path that allows the vortex to form, secure and protect the internally mounted components and is connected to the pipe by flanges.
Huajiang Automation can provide you with the most professional selection of vortex flowmeters and the most reliable instrument products. If you have any questions, we will have professional technicians to help you with your answers. I hope to help you!
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