Data error processing of vortex flowmeter

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.

In the selection process of the vortex flow meter, in addition to the selection of a high-precision type in a comprehensive consideration of the demand, other accessories of the vortex flow meter are also very important, such as the selection of flow transmitters, the selection of compensatory pressure transmitters, and so on.

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)

Vortex flowmeter is a kind of fluid oscillating flow detection instrument based on Karman vortex principle. It is characterized by small pressure loss, wide range and high measurement accuracy. It is almost unaffected by fluid density, pressure, temperature, viscosity and other parameters when measuring volume flow under working conditions. In daily use, there may be problems such as large measurement errors, so we need to eliminate problems from the following aspects:

Vortex flowmeter is mainly used to set up a vortex generating body (resistance fluid) in the fluid, from both sides of the vortex generating body alternately to produce regular vortices, to measure the flow of fluid, vortex flowmeter is mainly used for industrial pipeline fluid flow measurement, such as gas, liquid, steam 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. In daily use, the output signal may be unstable, causing this phenomenon to be excluded from the following points:

When choosing the right ammonia flow meter for you, several factors need to be considered to ensure the accuracy of the measurement results and the reliability of the equipment. Here’s a detailed buying guide:

The vortex flowmeter is used in measuring coke oven gas, and the coke oven gas in some coke plants has been developed in the direction of civil gas. As a result, the problem of gas measurement becomes more and more prominent, and the demand for accuracy of gas measurement becomes higher and higher. However, there will be some problems in use, let’s talk about the causes and solutions of these problems:

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.

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.

The water and wastewater treatment sector also benefits significantly from vortex flow meters. These meters are used to measure the flow of water in pipes, helping to monitor consumption, detect leaks, and optimize water treatment processes. Their robust construction and suitability for both clean and dirty water make vortex flow meters essential tools for managing water resources effectively.

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.

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.

Another notable application of vortex flow meters is in the field of HVAC (Heating, Ventilation, and Air Conditioning) systems. These meters accurately measure the flow of chilled water or air, providing essential data for optimizing system performance and energy efficiency. By monitoring flow rates in HVAC systems, vortex flow meters help maintain ideal conditions in buildings, ensuring proper temperature control and minimizing energy consumption. In summary, vortex flow meters find widespread application across diverse industries, offering a reliable and cost-effective solution for measuring fluid flow in a variety of challenging environments.

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

In chemical processing plants, vortex flow meters play a crucial role in measuring the flow of corrosive or abrasive liquids. Their resistance to harsh chemical environments, combined with their ability to offer accurate readings even in challenging conditions, makes them valuable assets for ensuring the efficiency and safety of chemical processes. The meters’ capability to handle different fluid types and maintain accuracy contributes to their widespread adoption in chemical industries.

vortex flow meter is a specialized instrument designed for measuring the flow rate of liquids, gases, or steam in various industrial processes. It operates on the principle of the Von Kármán effect, where a bluff body (typically a shedder bar or a blunt object) is placed in the flow stream. As the fluid passes by the bluff body, vortices are formed alternately on either side, creating a pattern. The frequency of these vortices is directly proportional to the velocity of the flowing fluid, allowing the vortex flow meter to accurately determine the flow rate.

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 flowmeters are suitable for measuring the mass flow and volume flow of superheated steam, saturated steam, compressed air, general gas, water and low corrosive liquids. We often encounter the following failures in the use of vortex flow meters:

Vortex flowmeter is widely used because of its wide range, small pressure loss, medium accuracy, linear output, no moving parts, high reliability, small maintenance, medium low price, and relatively high performance price characteristics.

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.

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

Reliability is a hallmark of vortex flow meters, as they exhibit robust performance in harsh operating conditions. Their simple yet sturdy design, often featuring no moving parts, results in minimal maintenance requirements and increased longevity. This reliability is particularly crucial in industries where consistent and accurate flow measurement is essential for process control and optimization.

Vortex flowmeter is a new flowmeter successfully developed on the basis of Karman vortex principle. Vortex flowmeter is suitable for measuring the mass flow and volume flow of superheated steam, saturated steam, compressed air, general gas, water and low corrosive liquid. How to ensure the accuracy of vortex flowmeter measurement during installation?

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:

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 working principle of vortex flowmeter is to place a non-streamlined vortex generator in the fluid, so that the fluid is alternately separated on both sides of the generator, releasing two series of regularly staggered vortex flowmeter. In a certain range, the vortex separation frequency is proportional to the flow rate, and the vortex flowmeter can measure the flow rate of the medium by calculating the vortex separation frequency.

Integrated intelligent vortex flowmeter troubleshooting

In the production process, each of the intelligent vortex flowmeters has passed a strict quality inspection, and each flow real flow calibration. If the meter does not work properly during use, please follow these steps to check.

Vortex flowmeter is a velocity flowmeter, which measures the volume flow rate in the working state.

At present, there are many misunderstandings about steam measurement in China, and many users often think that buying a high-price flowmeter can get accurate measurement results. The measurement of steam is different from other fluids such as water, air and other media, and there are many factors affecting its measurement in the actual measurement. Therefore, there is often a phenomenon that the flow meter itself is qualified, but the actual measurement is not “allowed”. So what’s the problem with these factors?

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.

The split vortex flowmeter is a kind of flowmeter suitable for measuring steam at high temperature, which can avoid the influence of interfering signals on the measurement of the instrument. So what are the characteristics of the split vortex flowmeter?