The true face of precession vortex flowmeter (1) Posted by : admin / Posted on : Jan 21， 2020

 The precession vortex flowmeter adopts the latest micro-processing technology, which has the advantages of strong function, wide flow range, simple operation and maintenance, and convenient installation and use. The main technical indicators have reached the advanced level of similar foreign products. Widely used in various gas measurement in petroleum, chemical, power, metallurgy and coal industries.
 The flow profile of the flow sensor is similar to the profile of a venturi. A set of spiral guide vanes is placed on the inlet side. When the fluid enters the flow sensor, the guide vanes force the fluid to generate a violent vortex. When the fluid enters the diffusion section, the vortex is affected by the backflow and starts to rotate twice to form a gyro-type vortex precession phenomenon. The precession frequency is directly proportional to the flow rate, and is not affected by the physical properties and density of the fluid. The second rotation precession frequency of the fluid measured by the detection element can obtain good linearity over a wide range of flow rates. The signal is amplified, filtered, and shaped by a preamplifier and converted into a pulse signal that is proportional to the flow rate, and then sent to the microprocessor for integration processing with the detection signals such as temperature and pressure. Finally, the measurement is displayed on the LCD screen. Results (instantaneous flow, cumulative flow and temperature, pressure data).
main feature:
1. Built-in pressure, temperature and flow sensors, high safety performance, compact structure and beautiful appearance.
2. Local display of temperature, pressure, instantaneous flow and cumulative flow.
3． The new signal processing amplifier and unique filtering technology are used to effectively eliminate the interference signals generated by pressure fluctuations and pipeline vibrations, which greatly improves the anti-interference ability of the flow meter and makes the small flow have excellent stability.
4． Unique time display and real-time data storage function, no matter what the situation, can guarantee that the internal data will not be lost and can be stored permanently.
5． The power consumption of the whole machine is extremely low, and it can run on the internal battery for a long time. It is an ideal display instrument without an external power source.
6. The anti-theft function is reliable, with password protection to prevent parameter changes.
7. The meter head can be rotated freely at 180 degrees for easy installation.