How to choose a vortex flowmeter?

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

One of the notable advantages of vortex flow meters is their versatility, as they can be employed in a wide range of applications across different industries. They are particularly useful for measuring the flow of fluids with varying viscosities, making them suitable for applications in petrochemical, pharmaceutical, and water treatment industries. Additionally, vortex flow meters are known for their ability to handle both high and low-flow conditions with consistent accuracy, providing reliable measurements across a broad operational range.

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

Nominal diameter: DN25～DN300mm
Accuracy: liquid ±1.0%, gas (steam) ±1.5%, plug-in ±2.5%
Material: 304, 316L various materials
Measuring media： Steam, compressed air, liquid (single phase media)
LUGB flange clamped vortex street steam flowmeter is a commonly used structure, its body itself does not have a connection flange, in connection with the pipe, the flowmeter clamped between two special flanges, and then bolted.

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

Vortex flowmeter is a commonly used flow meter, the use of any instrument is inseparable from daily maintenance and maintenance, whether it is its own failure or interference by external factors, we calmly respond to the occurrence of failure.

In the future operation of steam flowmeters, the inaccurate measurement or unusable situations caused by incorrect selection should be greatly reduced. The following points should be noted:

Vortex flowmeter has high requirements for installation and working environment, and the front and rear straight pipe sections must be installed in accordance with the specifications.

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.

Vortex flow meters find diverse applications across industries where accurate measurement and monitoring of fluid flow are critical. One prominent use is in the oil and gas sector, where vortex flow meters are employed to measure the flow rates of various hydrocarbons. These meters excel in handling the challenges posed by the varying viscosities and temperatures of oil and gas, providing reliable measurements for custody transfer, production monitoring, and process optimization.

In the field of modern industrial flow measurement, vortex flowmeters have become the preferred choice for measuring the flow of liquids, gases and steam due to their advantages such as simple structure, high reliability and wide application range. So, how does this star product achieve precise measurement? Let’s explore the scientific principle behind it.

Installation environment of 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.

Technical requirements and precautions for measuring natural gas with precession vortex flow meter

Vortex flowmeters are mainly used for flow measurement of industrial pipeline material fluids, such as gases, liquids, and steam. Due to the small pressure loss, wide range and high accuracy of vortex flow, it is almost unaffected by fluid density, pressure, temperature and viscosity when measuring working conditions. If a flow error is reflected in the use of a vortex flowmeter, the first thing to do is to distinguish this error, which leads to a flow deviation.

Vortex flowmeter is a kind of instrument device to measure the flow of pipeline fluid, and it works by the principle of velocity vortex. Vortex flowmeter has two kinds of volume and mass flow measurement, which can be selected according to the situation of the field.

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:

Precession vortex flowmeter without mechanical moving parts, small size, corrosion resistance, stable performance; It can directly display the working pressure, temperature, flow rate and gas volume under standard state of the medium; With the advantages of wide measuring range and small measuring error, the precession vortex flowmeter has been widely used in the production measurement of oil and gas Wells and the sales measurement of natural gas.

1. Vibration effect

Compressed air is generated by air compressor or high pressure fan. When these devices are in operation, they all have varying degrees of vibration, and sometimes the vibration is relatively strong, and this vibration is transmitted through the connecting pipe. When selecting and determining the position of the vortex flowmeter, this influencing factor should be fully considered. In various detection methods, the anti-vibration performance of the instrument is not the same due to different detection components. For the vortex street of the detection element, the vibration resistance can reach 0.5~1G. When determining the installation position of the vortex flowmeter, it should be as far away from the power equipment such as air compressors and fans as possible.

The advantages of vortex flowmeters

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.

vortex flow meters offer a cost-effective solution for flow measurement. Their relatively simple design, coupled with low maintenance requirements, contributes to a lower total cost of ownership over the life of the instrument. This cost efficiency, combined with their accuracy and reliability, positions vortex flow meters as a favorable choice for industries seeking optimal performance without compromising on budget considerations.

Vortex flowmeter is a velocity flowmeter, which measures the volume flow rate in the working state. If you choose the table according to the volume flow rate, the mass flow rate provided by the customer should be converted into the volume flow rate under the working state, and then determine the diameter of the selected instrument against the volume flow parameter.

Vortex flowmeter is a new type flowmeter for measuring fluid flow in closed pipeline according to Karman vortex principle. It is mainly used for the flow measurement of industrial pipeline medium fluids, such as gas, liquid, vapor and other media. It is characterized by small pressure loss, large range, high accuracy, and is almost not affected by fluid density, pressure, temperature, viscosity and other parameters when measuring volume flow under working conditions.

1, pulse vortex flowmeter is a kind of high measurement accuracy, simple installation, small maintenance, a wide range of meters, is currently widely used in petrochemical, metallurgy, textile, urban construction, energy and other industries.

1. There is fluid flow in the pipeline after power-on, but no signal output

Vortex flowmeter is based on the Karman vortex street principle, which is mainly performed by setting a non-streamlined vortex generator (resistance fluid) in the flowing fluid, and alternately producing two columns of regular vortices from both sides of the vortex generator.

Steam flowmeters are mainly used for flow measurement of industrial pipeline media fluids, such as gases, liquids, steam and various other media. Its characteristics are low pressure loss, wide measurement range, high accuracy, and it is almost unaffected by parameters such as fluid density, pressure, temperature, and viscosity when measuring the volumetric flow rate under working conditions.

Accuracy is another significant advantage of vortex flow meters. With advancements in technology, modern vortex flow meters can provide precise and repeatable measurements even in challenging flow conditions. This high level of accuracy makes them indispensable for applications where tight control over fluid flow rates is critical, such as in chemical manufacturing or custody transfer operations in the oil and gas industry.

In modern industrial production, efficient and accurate flow measurement is the key to ensuring process stability and improving energy efficiency management. Vortex flowmeters, with their advantages of simple structure, high reliability and wide application range, have become the “main force” in flow monitoring in industries such as petrochemicals, energy and power, metallurgy and pharmaceuticals, providing solid support for the intelligent upgrade of industry.

When selecting a vortex flowmeter, it is necessary to provide the measured medium, product density and viscosity, working condition temperature, working condition pressure (, maximum flow rate, normal flow rate).