The vortex flowmeter is an instrument for flow measurement based on the Karman vortex principle. When the fluid flows through the vortex generator in the pipeline (such as a triangular prism vortex generator), regular vortices will be generated alternately on both sides of it. The release frequency of these vortices is proportional to the average velocity of the fluid. By measuring the release frequency of the vortex, the flow velocity and flow rate of the fluid can be calculated.
Consider the measuring medium: select a suitable flowmeter according to the properties of the measured medium (such as liquid, gas or steam) and its characteristics (such as temperature, pressure, corrosiveness, viscosity, etc.).
Determine the flow range: select the appropriate flowmeter model and specification according to the expected flow range, and ensure that the actual flow is in the middle area of the range to improve the measurement accuracy.
Match the pipeline size: select a flowmeter of the corresponding caliber according to the inner diameter of the pipeline, and consider the pressure loss at the same time to ensure that the system performance is not affected.
Focus on measurement accuracy: select the appropriate accuracy level according to the measurement requirements, select products of about ±1% for high-precision requirements, and select flowmeters of about ±2% for general monitoring occasions.
Consider environmental conditions: Select a suitable flow meter according to the working environment conditions (such as temperature, humidity, vibration, etc.) to ensure that the flow meter can operate stably in harsh environments.
Consider maintenance: Select a flow meter that is easy to maintain and maintain to reduce subsequent maintenance costs and ensure long-term reliability.
High-precision measurement: The vortex flowmeter has high precision and small error, which can meet the requirements of precise measurement. Its measurement accuracy can usually reach between ±1% and ±1.5%.
Simple and firm structure: The structure of the vortex flowmeter is relatively simple and has no moving parts, so it has high reliability and long-term stability.
Small pressure loss: The design of the vortex flowmeter makes the pressure loss generated during the measurement process small, which helps to reduce the operating costs of the system and has a certain energy-saving effect.
Wide range of application: The vortex flowmeter can be used to measure the flow of various media such as gas, liquid, steam, etc., and has a wide range of applications.
Multiple signal outputs: The vortex flowmeter has both analog standard signal output and digital pulse signal output, which is easy to use with digital systems such as computers to achieve automatic control and remote monitoring.
Intelligent features: The vortex flowmeter is usually equipped with intelligent features such as temperature and pressure compensation function and digital circuit design, making the flow measurement more accurate and reliable.
Industrial production: In metallurgy, electricity, coal, chemical industry, petroleum and other industries, vortex flowmeters are used to measure and control the flow of various fluids (including gas, liquid and steam) to meet the needs of the production process.
Energy metering: Vortex flowmeters can be used to measure the flow of primary energy (such as coal, crude oil, coalbed methane, petroleum gas and natural gas) and secondary energy (such as electricity, coke, artificial gas, refined oil, liquefied petroleum gas, steam), etc., providing an important basis for scientific management of energy, energy conservation and consumption reduction, and improving economic benefits.
Environmental protection: Vortex flowmeters can be used to monitor and control the discharge flow of flue gas, waste liquid, sewage, etc., which helps to improve the quality of air and water resources.
Transportation: In pipeline transportation, vortex flowmeters are key tools for control, distribution and scheduling. By measuring the flow of fluids in pipelines, accurate control and management of the transportation process can be achieved.
In summary, vortex flowmeters have been widely used in many fields with their advantages of high precision, simple structure, small pressure loss and wide application range.