Key points of Application of vortex flowmeters in hot water measurement

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.

The ethane Flow Meter Purchase Guide is designed to help you choose the best solution for your needs. In the purchase process, it is necessary to consider the nature, use, safety, measurement accuracy, stability, cost and other factors. Here is a detailed shopping guide:

Measured Medium: Liquid, Gas, Steam
Medium Temp: -40℃~+200℃; -40℃~+280℃; 40℃~+350℃
Nominal Pressure: 1.6MPa;2.5MPa;4.0MPa;6.4MPa(Other pressure can be custom,need consult supplier)
Accuracy: 1.0%(Flange), 1.5%(Insertion)
Material: SS304(Standard), SS316(Optional)

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.

The factors that affect the accurate measurement of vapor gas flowmeter are mainly the following:

Vortex flowmeter is used by many industries for its simple structure, small maintenance, constant accuracy, easy operation and wide application range.

Vortex flowmeter is also known as Karman vortex flowmeter. Vortex flowmeter is a kind of separation flowmeter made by using the principle of natural oscillation of fluid. When a fluid flows at a sufficiently large velocity through an object perpendicular to the direction of the fluid, if the object is of appropriate size, it will produce a neatly aligned and reversed vortex train behind the object along two parallel lines.

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.

Vortex flowmeter is used by many industries for its simple structure, small maintenance, constant accuracy, easy operation and wide application range.

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?

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.

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.

Vortex flowmeter is the use of fluid flowing through the obstruction to produce a stable vortex, by measuring the vortex generation frequency II to achieve flow measurement. Vortex flowmeter is composed of vortex flow sensor and flow display instrument. The display instrument is a general flow display instrument. The following introduces the installation points of steam flowmeter.

At present, many users often think that the purchase of a high-price flow meter 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.

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:

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:

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:

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:

In industries such as petrochemicals, energy and power, and metallurgy, the flow measurement of high-temperature media (such as superheated steam, heat transfer oil, and high-temperature gas) has always been a technical challenge. Vortex flowmeters are widely popular due to their simple structure and high stability, but how do they perform in high-temperature environments? Can high-temperature probes ensure long-term reliable operation? This article will conduct an in-depth analysis from aspects such as principle, temperature resistance design and industry application.

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.

Vortex flowmeters, with their simple structure, high reliability and wide application range, occupy an important position in the field of industrial flow measurement. However, its measurement accuracy is affected by multiple factors, and how to ensure high-precision measurement has become a core issue of concern for users. This article will analyze the accuracy guarantee strategies of vortex flowmeters from the perspectives of design, installation, calibration and maintenance.

For energy measurement

Energy can be classified into primary energy, secondary energy, etc. Energy measurement is the scientific management of energy to achieve energy conservation and consumption reduction.

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:

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

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:

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.

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.

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.

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?

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, relatively high performance and price characteristics.