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『The vortex flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
1. What is the difference between vortex flowmeter and vortex swirl flowmeter? There are significant differences in the design principles and application fields between vortex flowmeter and vortex swirl flowmeter. The vortex flowmeter is based on the Karman vortex principle and is a flow measurement device with no moving parts. It is suitable for monitoring the flow of various fluids in industrial pipelines, including but not limited to gases, liquids, and vapors. The characteristics of this flowmeter are low pressure loss, wide range, and high accuracy. Moreover, its performance is almost unaffected by parameters such as fluid density, pressure, temperature, and viscosity when measuring volumetric flow under attitude disturbance conditions. The vortex swirl flowmeter adopts microprocessing technology, which has powerful functions, wide flow range, simple operation and maintenance, and convenient installation process. Its main technical indicators have reached the advanced level of similar international products, and are widely used in gas metering in industries such as petroleum, chemical, power, metallurgy, and coal. 2. Working principle of vortex flowmeter
The vortex flowmeter works based on the principle of fluid vortex precession, and calculates the flow rate by measuring the vortex frequency. The core working principle is 1 After the fluid generated by the vortex enters the flowmeter, it is forced to rotate through a set of fixed spiral blades (starter), forming a vortex flow. 2. Vortex precession When the vortex flow enters the expansion section of the Venturi tube, the cross-section of the pipeline expands, causing the vortex center axis to precess (similar to gyroscope oscillation). 3. The vor
2. Key structural components 1 Starter: The core component that forces fluid to generate vortices, usually made of stainless steel material. Sensor: uses piezoelectric chips to detect pressure fluctuations and convert them into electrical signals. Shell: a Venturi tube structure that guides fluid expansion/contraction to enhance precession effects. Signal processor: integrates temperature/pressure compensation module (optional Landbridge) to improve measurement accuracy.
III. Technical characteristics • Accuracy level: Conventional products can reach 1.0 level (1%) or 1.5 level (1.5%) • Range ratio: usually 10:1~30:1 • Applicable pipe diameter: DN15-DN200 (with obvious advantages for small and medium-sized diameters) • Working pressure: standard type 1.6MPa~4.0MPa, high-pressure type can reach 10MPa • Medium temperature: -20 ℃~+200 ℃ (special design can reach 300 ℃)
IV. Application restrictions and risk warning 1 Installation requirements: It is necessary to ensure the straight pipe section (D is the pipe diameter) from the front 10D to the back 5D to avoid flow field disturbance Medium adaptability: Not suitable for dirty media containing solid particles or fibers (prone to clogging the starter) 3 Pressure loss: Due to significant pressure loss in the throttling structure,