Why are vortex flowmeters so widely used? Analyze its core advantages

The main advantage of the temperature and pressure compensated vortex flowmeter is that the instrument coefficient is not affected by the physical properties of the measured medium and can be extended from one typical medium to other media.

Due to the compressibility of the gas, its flow measurement is more complex than that of the liquid, and the output signal of the vortex flowmeter is related to the gas density in addition to the input signal, and the density of the gas is a function of temperature and pressure (referred to as temperature and pressure).

Vortex flowmeters, as a commonly used flow measurement instrument, have extensive applications in the industrial field. The following is a detailed analysis of the advantages and disadvantages of vortex flowmeters and their selection guidelines:

In the field of industrial gas flow measurement, vortex flowmeters, with their simple structure, high stability and wide application range, have become the ideal choice for monitoring the flow of various gases such as natural gas, steam and compressed air. Based on the Karman vortex street principle, it calculates the flow rate by detecting the vortex frequency generated when the fluid passes through the blocking fluid, and can achieve high-precision measurement without temperature and pressure compensation. The following is an analysis of the typical applications and technical advantages of vortex flowmeters in gas measurement.

Whether vortex flowmeters need temperature and pressure compensation when measuring steam mainly depends on the nature of the steam being measured and the requirements for measurement accuracy.

Whether the temperature and pressure compensation is required for steam measurement by vortex flowmeter mainly depends on the properties of the steam being measured and the requirements of measurement accuracy.

In the field of modern industrial flow measurement, vortex flowmeters, with their unique advantages, have become an important choice for industries such as petroleum, chemical engineering, power, metallurgy, and heating. So, why can it be applied so widely? We will conduct an in-depth analysis from its working principle, performance characteristics and applicable scenarios.

As industries continue to seek efficient and reliable flow measurement solutions, vortex flow meters stand out for their accuracy, adaptability, and durability. Their ability to provide real-time data and facilitate process optimization makes them indispensable tools for ensuring the efficient operation of various industrial processes where precise flow measurements are essential.

Measuring medium：Liquid, gas, saturated steam, superheated steam
Accuracy：Liquid ±1.0%, gas (steam) ±1.5%, plug-in ±2.5%
Working pressure：1.6MPa，2.5MPa，4.0MPa，6.4MPa
Medium temperature：Ordinary type -40 ~ 150℃
Medium temperature type -40 ~ 250℃
High temperature type -40 ~ 350℃
Output signal：Three-wire voltage pulse, low level 0 ~ 1V,
high level > 4V, duty cycle 50%;
Two-wire system standard current 4 ~ 20mA;
Three-wire system standard current 0 ~ 10mA
Working environment：-35℃～+60℃，Humidity ≤95%RH
Working power supply：DC12V；DC24V
Material：Carbon steel, stainless steel
Explosion-proof type：Intrinsically safe ExibIICT6

As a very special medium, steam will show special phenomena and problems in the process of vortex flowmeter measurement. The key problem is that the vapor density value deviates too much from the design value, which brings significant measurement errors to the measurement results. At present, the mature density measuring instrument has not been successfully applied, which brings certain difficulties to the steam flow measurement.

The vortex flowmeter is based on the Karman vortex street principle. It is mainly characterized by setting up a non-streamlined vortex generator (blocking the fluid) in the flowing fluid, and alternately generating two regular vortices on both sides of the vortex generator. It is widely applicable to industries such as petroleum, chemical engineering, metallurgy, thermal power, textile, and papermaking, for the measurement and control of superheated steam, saturated steam, compressed air, and general gases, water, and liquids. What issues should be noted when using a vortex flowmeter for hot water measurement

Vortex flowmeters have advantages that other flowmeters do not have and have developed rapidly since their introduction. According to statistics, the proportion of vortex flowmeters used in developed countries such as Japan, Europe and America has increased significantly and they have been widely applied in various fields. Judging from the current trend, vortex flowmeters will play a dominant role in future flow meters and are ideal alternatives to orifice plate flowmeters.

Vortex flow meters are highly versatile instruments widely utilized in various industrial applications to measure the flow of liquids, gases, and steam. One prominent application of vortex flow meters is in the oil and gas industry, where they play a crucial role in measuring the flow rates of hydrocarbons through pipelines. These meters are particularly adept at handling the challenging conditions present in oil and gas operations, including high pressures and temperatures. By accurately measuring flow rates, vortex flow meters contribute to efficient process control and optimization, ensuring that production and transportation systems operate smoothly and cost-effectively.

The structure of the vortex flowmeter is relatively simple, only the sensor and the display instrument are composed of two parts, and the measurement accuracy and stability are also relatively stable.

Gas flowmeter is a general term for many measurable gas flows. Today, we mainly explain the installation conditions of vortex flowmeter.

In HVAC (heating, ventilation, and air conditioning) systems, vortex flow meters are utilized to measure the flow rates of air and other gases. Their ability to provide accurate readings in a wide range of temperatures and pressures ensures efficient HVAC system operation. Vortex flow meters contribute to energy savings by enabling precise control of airflow and facilitating better management of heating and cooling processes.

Across various industries, including pharmaceuticals, food and beverage, and power generation, vortex flow meters continue to find applications in processes requiring precise fluid flow measurement. Their adaptability to different fluid types, low maintenance requirements, and reliable performance make them indispensable tools for optimizing industrial processes and ensuring the accurate allocation of resources.

In the process of diameter selection of vortex flowmeter, special attention should be paid to the fact that the diameter of vortex flowmeter cannot be selected according to the original pipe diameter on site. The diameter of the vortex flowmeter should be determined according to the parameters in the pipeline such as the flow range of the medium in the pipeline, working temperature and working pressure, and then combined with the technical parameters of the vortex flowmeter.

With the continuous production progress of the reform and opening up industry, it has been applied in more and more industries, and the vortex flowmeter is widely used in large, medium and small pipeline water supply and drainage, industrial circulation, and sewage treatment. Oil and chemical reagents as well as compressed air, saturated vapor and superheated vapor, natural gas flow measurement of various media and can be used as a flow transmitter in automated control systems.

Many owners will occasionally encounter that the vortex flowmeter does not have a flow display when using the vortex flowmeter. For this situation, Aister gives the following treatment methods:

As a very special medium, steam will show special phenomena and problems in the process of vortex flowmeter measurement. The key problem is that the vapor density value deviates too much from the design value, which brings significant measurement errors to the measurement results. At present, the density measuring instrument with mature technology has not been successfully applied, which brings certain difficulties to the steam flow measurement.

Nominal diameter: DN15～DN300mm
Accuracy: liquid ±1.0%, gas (steam) ±1.5%, plug-in ±2.5%
Structure form: Integrated, split, temperature and pressure compensation
Applicable medium: liquid, gas, saturated steam, superheated steam

To play a greater role, the vortex flowmeter must be correctly selected, and the selection is mainly judged by the temperature, pressure, flow rate of the medium, interference and other problems in the working condition.

There are often some error factors in the calibration and use of flowmeter coefficient, which affect the accuracy of gas metering. The following are the factors that affect the accuracy of the steam flowmeter.

The power supply methods of the helical vortex flowmeter are diverse to meet the demands of different application scenarios. The main power supply methods include the following:

Vortex steam flowmeter is one of the main flowmeter products, widely used in petroleum, chemical industry, metallurgy, heating and other departments. Test and measure the flow of liquid, gas and steam.

When the vortex flowmeter has no liquid flow in the pipeline, the receiver counts abnormally due to the noise generated by the pipeline vibration, and the sensitivity of the instrument should be adjusted.

The installation of the vortex flowmeter has different provisions, used to measure different measured media, different positions, then the installation method is not the same, the attention point is different, generally speaking, the vortex flowmeter has the following specified points:

Nominal diameter: DN15～DN300mm
Accuracy: liquid ±1.0%, gas (steam) ±1.5%, plug-in ±2.5%
Structure form: Integrated, split, temperature and pressure compensation
Applicable medium: liquid, gas, saturated steam, superheated steam

When selecting the right air flow meter product, a number of factors need to be considered to ensure that the selected product can meet the actual needs and has good performance. Here is a detailed buying guide to help you choose the best air flowmeter:

Vortex flowmeter can be widely used in large, medium and small kinds of pipeline water supply and drainage, industrial circulation, sewage treatment, oil and chemical reagents and compressed air, saturated and superheated steam, natural gas and various media flow measurement and can be used as a flow transmitter in automatic control system, long service life. Points of attention for vortex flowmeter installation:

Intelligent vortex flowmeters can measure air. Vortex flowmeter is a new flowmeter for flow measurement based on Karman vortex principle. It has good medium adaptability and can directly measure the volume flow of various media (including air). When measuring air, the vortex flowmeter generates regular vortices through the triangular column vortex generator set in the fluid, and the frequency of these vortices is proportional to the average velocity of the measured medium, so that the air flow can be calculated.