Precautions for the installation process of compressed air vortex flowmeters

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 is a kind of flow measuring instrument widely used in the industrial field. Its superior performance and versatility make it play an important role in the measurement of liquid and gas medium. Vortex flowmeter can not only measure a variety of liquid media, but also suitable for a variety of gases, providing reliable flow data support for industrial production and process control.

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 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 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.

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 flow rate of the medium can be measured by calculating the vortex separation frequency.

In this article, the Aister instrument staff will explain the key points to note when installing a compressed air vortex flowmeter

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:

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

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.

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

The advantages of vortex flowmeters

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?

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?

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

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, 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.

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.

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:

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.

Steam flowmeters are mainly used for measuring the flow of steam medium fluids in industrial pipelines. The product features low pressure loss, wide measurement range, high accuracy, and is almost unaffected by parameters such as fluid density, pressure, temperature, and viscosity when measuring the volume flow under working conditions. There are no moving mechanical parts, so it has high reliability and low maintenance.

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 and the selection of compensatory pressure transmitters.

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.

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.

The vapor flowmeter has no moving parts, strong reliability, high precision, long life, and can measure the instantaneous flow and cumulative flow of liquid in a wide flow range.

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:

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.

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

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 flowmeter is also known as Karman vortex flowmeter. It is a separation flowmeter made of 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.