The advantages of vortex flowmeter and how to select
2023-11-03
Vortex flowmeter is a new flowmeter developed according to Karman Vortex theory, which is suitable for measuring the mass and volume of low viscosity liquid, gas, vapor and other liquids in petroleum, chemical industry, metallurgy, machinery, food, paper making, municipal pipeline heating, water supply, gas and other industries. The device has the advantages of low pressure loss, wide measuring range and high measuring accuracy, and the volume flow detection under working conditions is basically unaffected by the parameters of fluid density, pressure, temperature and viscosity. The following introduces the advantages of vortex flowmeter:
1.wide range of applications, gas, liquid flow can be measured;
2.wide measuring range, range ratio up to 1:10;
3.no direct contact with the medium, with good stability;
4.the output is proportional to the flow of pulse signal, no zero drift, high accuracy, and easy to network with the computer;
5.the structure is simple, strong, does not need to move parts, long-term operation is very stable;
6.small pressure loss, low operating costs, more energy saving significance;
7.within a certain range of Reynolds number, the output signal frequency is not subject to changes in the physical properties and components of the fluid, the instrument coefficient is only related to the shape and size of the vortex generator, the volume flow of the measured fluid does not need to be compensated, and the coefficient of the instrument does not need to be recalibrated after the replacement of accessories.
8.maintenance is very easy, and the installation cost is low;
9. The verification cycle is 2 ~ 4 years.
The vortex flow meter should be how to select it, the following by Aister instrument to introduce the four main points of vortex flow meter selection.
1. the flow meter should be used in the medium working pressure and temperature range of the technical parameters. Do not deliberately choose high pressure grade and ultra-high temperature instrument, should be selected according to the actual working pressure and temperature instrument, the latter price is higher;
2. the selection of flowmeter as far as possible do not use the flow working at the lower limit value, so the diameter of the flowmeter should be as small as possible, in order to obtain a larger flow rate and flow range;
3. the lower limit flow of the steam vortex flowmeter is related to the working density and kinematic viscosity of the medium, and its upper limit flow is generally not affected by the pressure and temperature of the medium, so the flow range is determined as long as the actual available lower limit flow can be determined. After calculating the lower limit flow, the corresponding caliber can be determined by looking up the flow range table;
4. in explosive dangerous places, explosion-proof flowmeters should be selected.
1.wide range of applications, gas, liquid flow can be measured;
2.wide measuring range, range ratio up to 1:10;
3.no direct contact with the medium, with good stability;
4.the output is proportional to the flow of pulse signal, no zero drift, high accuracy, and easy to network with the computer;
5.the structure is simple, strong, does not need to move parts, long-term operation is very stable;
6.small pressure loss, low operating costs, more energy saving significance;
7.within a certain range of Reynolds number, the output signal frequency is not subject to changes in the physical properties and components of the fluid, the instrument coefficient is only related to the shape and size of the vortex generator, the volume flow of the measured fluid does not need to be compensated, and the coefficient of the instrument does not need to be recalibrated after the replacement of accessories.
8.maintenance is very easy, and the installation cost is low;
9. The verification cycle is 2 ~ 4 years.
The vortex flow meter should be how to select it, the following by Aister instrument to introduce the four main points of vortex flow meter selection.
1. the flow meter should be used in the medium working pressure and temperature range of the technical parameters. Do not deliberately choose high pressure grade and ultra-high temperature instrument, should be selected according to the actual working pressure and temperature instrument, the latter price is higher;
2. the selection of flowmeter as far as possible do not use the flow working at the lower limit value, so the diameter of the flowmeter should be as small as possible, in order to obtain a larger flow rate and flow range;
3. the lower limit flow of the steam vortex flowmeter is related to the working density and kinematic viscosity of the medium, and its upper limit flow is generally not affected by the pressure and temperature of the medium, so the flow range is determined as long as the actual available lower limit flow can be determined. After calculating the lower limit flow, the corresponding caliber can be determined by looking up the flow range table;
4. in explosive dangerous places, explosion-proof flowmeters should be selected.
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