Note on the selection of accessories in the selection of vortex flowmeter

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.

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

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.

There are many types of flow meters for measuring nitrogen, and each type has its specific application scenarios and advantages. Here are some common nitrogen 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.

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:

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:

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.

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 robust and durable construction of vortex flow meters contributes to their popularity in industrial settings. With no moving parts in direct contact with the fluid, these meters offer minimal maintenance requirements and extended operational life. Moreover, advancements in technology have allowed for the development of digital vortex flow meters that offer enhanced precision and communication capabilities, facilitating integration with modern process control systems.

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

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?

Precautions for installation and use of vortex flow meter

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:

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.

Vortex flowmeters are not only suitable for measuring a variety of low viscosity liquids, but also mainly for industrial measurement of gases and vapors. When measuring the volume flow of gas, vortex flowmeters are not affected by changes in fluid temperature, pressure, density, viscosity and other properties, so the measurement is very accurate and is the first choice for measuring air.

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

Vortex flowmeter is widely used in various industrial environments, in view of some small problems commonly encountered in the installation of vortex flowmeter, Aister gives the following points, hoping to solve the problems encountered in the installation.

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.

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.

5 main points of vortex flow meter selection

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.

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.

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.

Vortex flowmeters are versatile instruments commonly used in various industries for fluid flow measurement. Here are some applications of vortex flowmeters in different industries:

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 flowmeter is mainly used for the flow measurement of industrial pipeline medium fluids, such as gas, liquid, vapor and other media. In addition to the characteristics of the aforementioned vortex flowmeter, it also has the following characteristics:

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.

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:

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.

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.