The gas vortex flowmeter can be widely used in measuring the flow of compressed air, saturated and superheated steam, natural gas and various media in large, medium and small-sized pipelines, and can be used as a flow transmitter in an automatic control system with safety. , stability, long service life and other characteristics. Key points to note when installing vortex flowmeters for measuring steam: This product is adopt Screw Conveyor is composed of a power transmission device, a screw shaft, an intermediate support seat, a universal joint, etc., and adopts double pitch blades to reduce the degree of compression of the material during transportation. It is equipped with high-quality medium-hanging bearings and is easy to install. Screw Conveyor Screw Conveyor,Screw Conveyor Machine,Cement Screw Conveyor,Cement Conveying Screw Conveyor Machine Shandong Zeyu Heavy Industry Science and Technology Co.,Ltd. , https://www.zeyuconcretemachine.com
1. Upstream and downstream must have enough straight sections.
If there are two 90 in the same plane upstream of the sensor mounting point. Elbow, then: upstream straight section ≥ 25D, 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 upstream straight section of the sensor shall not be less than 50D, and the downstream shall be not less than 5D.
2. Reasonable choice of installation site and environment.
Avoid strong power equipment, high-frequency equipment, strong power switch equipment; avoid high-temperature heat sources and radiation sources, avoid strong vibration and strong corrosion environment, etc., at the same time to consider the installation and maintenance.
3. Pipes take vibration reduction measures.
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. 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 sensor is installed in the vertical pipe.
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. Installation on horizontal pipes is the most common installation method for flow sensors.
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.
7. The sensor is flipped 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.
8. The sensor is installed on the side of the horizontal pipe.
No matter what kind of fluid is measured, the sensor can be installed on the side of a horizontal pipeline, especially for 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.
9. Selection of pressure measurement 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.
10. The sensor is installed on the insulation pipe.
When measuring high-temperature steam, the insulation should not exceed a third of the height of the stand.