『Yunnan Vortex Flow Meter』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
1. Technical parameters of vortex gas flowmeter
The technical parameters of vortex gas flowmeter are as follows: caliber range: from DN15 to DN3000mm, even larger, with rubber liquid resistance and wide applicability. Nominal pressure: covering 0.6MPa to 42MPa, ensuring stable operation under various working conditions. Working temperature: ranging from 200 ℃ to+500 ℃, and can even withstand higher temperature conditions. Accuracy control: Control within the range of ± 0.2% to ± 1.5% FS to ensure the accuracy of measurement results. Range ratio: 1:10, able to adapt to flow changes and provide a wide measurement range. Shell material: Available in carbon steel and stainless steel, or with fluorine lining. Power supply method: Equipped with a built-in 3.6VDC lithium battery, with a replacement cycle of two years; Simultaneously supporting external 24VDC power supply, providing flexibility. Output signal: Provides standard 4-20mA two-wire signal and pulse output 0-1000Hz; supports RS232/RS485 interface, can be customized according to Liang Chuns needs. Protection level: IP65, ensuring safe operation of the equipment in various environments. Safety performance: Compliant with explosion-proof standards, certified with intrinsic safety ExiallCT4 and explosion-proof ExdllCT4. Header display function: including cumulative flow rate, instantaneous flow rate, operating temperature, operating pressure, and self inspection of buried rubber barriers, providing comprehensive real-time and long-term operating information. Connection methods: including taper pipe thread type, clamp type, and double flange type, ensuring seamless connection with various pipeline systems.
2. Working principle of vortex flowmeter | Manuf
Vortex flowmeter is a flow measurement instrument designed based on the Karman vortex principle, mainly used for flow detection of gases, liquids, and steam in industrial pipelines.
. The core principle and working process are as follows:1. Core principle: Karman vortex street effect. When the fluid flows through a non streamlined vortex generator (such as a triangular column), two regular vortices will alternately separate on both sides of the generator, forming Karman vortex streets. The release frequency (f) of the vortex is related to the fluid flow velocity (v) and the characteristic width of the generating body (d) as follows: f=Sr × (v/d), where Sr (Strouhal number) is a dimensionless constant that remains stable within a specific Reynolds number range (usually 2 × 10 ^ -7 × 10 ^ -2), ensuring a linear relationship between frequency and flow velocity. Figure 1: Schematic diagram of alternating vortices generated by fluid around a triangular column
Analysis of working process: When the fluid flows through the triangular column, vortices are alternately formed on both sides of the generating body due to pressure difference, and the strength of the vortices is proportional to the flow velocity.
. Frequency detection uses piezoelectric sensors, thermal sensors, or ultrasonic sensors to detect pressure fluctuations or flow rate changes caused by vortex shedding, and converts them into electrical signals. The frequency (f) of the pulse signal output by the signal processing sensor is directly related to the flow rate (v), and the flow rate is calculated by the following steps: Flow rate calculation: Obtain the average flow rate of the fluid according to the formula v=(f ×
Hot News
Related AD
