Intelligent vortex flowmeter installation notice special remind

Intelligent vortex flowmeter is characterized by small pressure loss, large measuring range, high precision, and almost no influence of parameters such as fluid density, pressure, temperature, and viscosity when measuring volume flow. No moving mechanical parts, so high reliability and low maintenance. The parameters in the table can be stable for a long time. It is a relatively advanced and ideal measuring instrument. It is mainly used for the flow measurement of industrial pipeline medium fluids, such as gases, liquids, vapors and other media.
 
1, choose the installation location of the rationality
Avoid strong power equipment, high-frequency equipment, strong power switch equipment; avoid the influence of high-temperature heat sources and radiation sources, avoid strong vibration sites and strong corrosion environment, etc., at the same time to consider the ease of installation and maintenance.
2. There must be enough straight sections upstream and downstream.
There are two 90 on the same plane upstream of the sensor mounting point. Elbow, then: upstream straight section ≥ 25D, downstream straight section ≥ 5D.
Upstream of the sensor mounting point there are two 90s in different planes. Elbow, then: Upstream straight section ≥ 40D, downstream straight section ≥ 5D.
The regulating valve shall be installed outside the sensor at 5D downstream. If it must be installed upstream of the sensor, the straight section of the sensor upstream shall not be less than 50D, and the downstream of the sensor shall not be less than 5D.
3. The necessity of vibration reduction measures for pipelines.
The sensor should not be installed on the vibrating pipeline as much as possible, especially the lateral vibration. If it is necessary to install, vibration reduction measures must be taken. Pipe fastening devices are installed at the upstream and downstream 2D ​​of the sensor, and anti-vibration pads are added.
4. Installation is one of the most commonly used mounting methods for vortex flowmeters on horizontal pipes.
When measuring gas flow, if the measured gas contains a small amount of liquid, the sensor should be installed in the higher part of the pipeline.
When measuring the liquid flow, if the measured liquid contains a small amount of gas, the sensor should be installed in the lower part of the pipeline.
The piping upstream and downstream of the installation point shall be concentric with the sensor, and the coaxial deviation shall not be less than 0.5 DN.
5, the vertical pipeline sensor installation method.
When measuring gas flow, the sensor can be mounted on a vertical pipe with unlimited flow. If the gas to be measured contains a small amount of liquid, the gas flow should be directed upwards.
When measuring the liquid flow, the flow direction of the liquid should be from bottom to top: this will not add extra weight to the probe.
6, select the pressure point and temperature measurement point.
According to the need of measurement, when the pressure and temperature need to be measured near the sensor, the pressure measurement point should be 3-5D downstream of the sensor, and the temperature measurement point should be 6-8D downstream of the sensor.
7. How to install the sensor on the side of the horizontal pipe.
No matter what kind of fluid is measured, the sensor can be installed on the side of horizontal pipes, especially superheated steam, saturated steam and cryogenic liquids. If conditions permit, it is better to use side loading, so that the temperature of the fluid has little effect on the amplifier.
8. Tips for flipping the sensor on a horizontal pipe.
This installation method is not recommended under normal circumstances. This installation method is not suitable for measuring general gases and superheated steam. It can be used to measure saturated steam and is suitable for measuring high-temperature liquids or situations where pipelines need to be cleaned regularly. When measuring high-temperature steam, the insulation should not exceed a third of the height of the stand.

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