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Vortex flowmeter introduction

Vortex flowmeter is a kind of volume flow meter used to measure various flow parameters of gases, liquids and steam and other media, mainly used in industrial pipeline media measurement, according to the vortex flow principle design, large range, small pressure loss, measurement accuracy, in the process of flow measurement, by the density, pressure, and temperature, and other factors such as less interference, maintenance, signal performance is stable, and can be at minus 20 to 250 degrees Celsius under normal operation. 250 degrees Celsius under the normal operation of the environment, there are analog standard signal and digital pulse signal transmission mode, through the remote transmission and supporting digital system connection, is a modern flowmeter.

Vortex flow meters are suitable for the measurement of the following media:

Fluids	Water, oil, alcohol, chemicals, etc.
Gas	Air, oxygen, nitrogen, carbon dioxide, mixed gases, natural gas, gas, etc.
Steam	Saturated steam, superheated steam

The following media are not suitable for measurement with vortex flowmeters:

• 1. Fluids with a high content of solid particles or suspended matter;
• 2. Working condition state kinematic viscosity is too large medium, such as some high viscosity oil (such as heavy oil);
• 3. Media that crystallize easily, such as sulfur;
• 4. Media that are corrosive to the instrument material.

Vortex flowmeter characteristics

• 1. One-piece molding, simple structure, no moving parts, stable performance, easy installation and operation, low maintenance, durable.
• 2. Adopting non-contact measurement method, the sensor does not come into direct contact with the measurement medium, avoiding damage to the sensor due to corrosive or other chemical properties contained in the medium, and prolonging the cycle of use.
• 3. The output is proportional to the flow rate, no zero drift, high measurement accuracy, a relatively wide measurement range, range ratio up to 1:10.
• 4. Lower pressure loss, low operating costs, more energy-saving significance.

How to set vortex flowmeter parameters?

Choose the flow measurement unit: vortex flowmeter flow measurement unit generally have cubic meters / hour, liters / hour, tons / hour, ug uban pa, need to choose the appropriate unit according to the actual need before use.

Determine the flow measurement range: The flow measurement range of a vortex flowmeter is the range in which the maximum and minimum flow rates of the flowmeter can be tested.

Installation location selection: vortex flowmeter installation location selection is also very important, the location of the smaller error should be a straight pipe, and its length should not be too short or too long. Need to be installed in curves or valves, ug uban pa, then need to recalculate the error.

Set the media density: vortex flowmeter media density and the accuracy of the flowmeter is closely related to the use of the need to pay attention to set the media density to ensure the accuracy of the flowmeter.

Setting temperature and pressure: vortex flowmeter in the process of use, according to the different media to set the appropriate temperature and pressure range to ensure its normal operation.

Differences between gas flow measurement and liquid flow measurement

Vortex flowmeters need to be adjusted and set up accordingly for different physical parameters when measuring gases and liquids.

For example, vortex flowmeter in the liquid measurement is usually installed in pairs, and need to pay attention to the viscosity of the liquid medium, density, temperature, pressure and other parameters. In the gas flow measurement, due to the flow characteristics of the gas medium and the liquid is different, so you need to carry out different parameter settings.

Although gases and liquids have different physical properties, vortex flowmeters essentially measure by detecting the rotating vortex generated by the fluid, so they are often designed and manufactured with its versatility in mind. In practice, vortex flowmeter can be used in a variety of liquids and gases flow measurement, but before use according to the specific conditions of the corresponding parameters need to be set and calibrated in order to ensure its measurement accuracy and reliability.