Description
1. Overview of Wafer Vortex Flow Meter
The VTON wafer vortex flow meter is designed for industrial applications to measure the flow of gases, liquids, and steam. Its advanced design minimizes pressure loss and ensures accurate flow measurement without moving parts, making it highly reliable and easy to maintain. These meters are compatible with analog and digital signal outputs, enabling seamless integration with digital control systems.
Applications:
- Chemical and petrochemical industries
- Metallurgy and light industries
- Environmental protection and municipal utilities
- Steam and energy systems
2. Product Features
- Simple and Robust Design: No moving parts ensure high reliability and long-term stable performance.
- Easy Installation and Maintenance: Compact structure simplifies setup and reduces maintenance costs.
- Non-Contact Sensor: The detection sensor does not directly contact the fluid, enhancing stability and longevity.
- High Accuracy: Provides precise pulse signals proportional to flow rate, with no zero-point drift.
- Wide Measurement Range: Supports a turndown ratio of up to 1:10 for versatile applications.
- Energy Efficiency: Low pressure loss reduces operational costs and contributes to energy savings.
- Low Power Consumption: Operates with ultra-low power, with a battery life exceeding two years.
- Integrated Compensation: Combines temperature and pressure compensation for accurate flow and cumulative readings without the need for manual switching.
3. Working Principle
The vortex flow meter measures flow based on the principle of “Kármán Vortex Street.” When the medium flows past a triangular bluff body at a certain velocity, alternating vortices are generated behind the body. These vortices create pressure pulsations, which are detected by a piezoelectric element in the sensor.
The frequency of the vortices (f) is proportional to the fluid velocity (V) and can be expressed as:
f = Sr × V / d
Where:
- f = Vortex frequency
- Sr = Strouhal number (~0.16 for stable flow)
- d = Width of the bluff body
By detecting the vortex frequency, the flow meter calculates the fluid flow rate, providing real-time measurements.
4. Technical Parameters
- Measurement Media: Gases, liquids, and steam
- Accuracy: ±1.0%R
- Temperature Range: -20℃ ~ +250℃
- Pressure Range: Standard and high-pressure options available
- Signal Output: Analog and digital pulse outputs
- Power Supply: Battery-powered with optional external power source
- Display Options: Remote display, on-site display, and temperature-pressure compensation integration
