Pipeline magnetic inductive flowmeter installation point selection

Project Overview

HSD pipeline magnetic inductive flowmeter has small pressure loss, good stability and high accuracy. It is often used to measure the volume flow of conductive liquids and slurries in closed pipelines. It is widely used in electric power, petroleum, chemical industry, coal, metallurgy, mining, and papermaking. , hot water supply, food, medicine and other industries.

Measurement principle of HSD pipeline magnetic inductive flowmeter

HSD pipeline magnetic inductive flowmeter is based on Faraday's law of electromagnetic induction. When the conductor passes through the magnetic inductive flowmeter, an electromotive force will be generated after cutting the magnetic field, and then the flow rate and flow rate of the conductor can be calculated. That is, the conductive liquid flows in the magnetic field to generate an induced electromotive force. The conductive fluid flowing through the sensor's working magnetic field generates an electromotive force proportional to the volume flow rate between the measuring tube wall and a pair of electrodes perpendicular to the flow direction and magnetic field direction. The electromotive force is proportional to the fluid flow. The flow rate is proportional. The converter measures the flow rate of the fluid by measuring the potential difference between the electrodes, and measures the flow rate through the pipe through the flow rate area method.

Basic measurement conditions for HSD pipeline magnetic inductive flowmeter

1. The pipeline must be filled with conductive fluid.

2. The conductivity of the fluid is uniform.

3. The inner wall of the measuring tube needs to be attached with an insulating lining.

4. The conductivity of the measured liquid has a certain range of specified values.

HSD pipeline magnetic inductive flowmeter installation point selection

1. Try to avoid magnetic objects and equipment with strong electromagnetic fields (such as large motors, large transformers, etc.) to avoid magnetic fields Affects the sensor's working magnetic field and flow signal.

2. Avoid vibration sources or install vibration damping tubes.

3. Take good grounding measures.

4. Try to install it in a dry and ventilated place. It is not suitable to install it in a humid place or a place prone to water accumulation.

5. Try to avoid exposure to the sun and rain, and choose a place that is convenient for maintenance and movement.

6. The flow meter should be installed at the rear end of the water pump and never on the suction side; the valve should be installed on the downstream side of the flow rate.

7. The sensor can be installed on a straight pipe, or on a horizontal or inclined pipe, but the center line of the two electrodes is required to be horizontal.

8. The medium should flow through the full pipe at the installation location to avoid the full pipe and gas from adhering to the electrode.

9. For liquid-solid two-phase fluids, it is best to install it vertically to make the sensor lining wear evenly and extend its service life.

10. When the medium in the installation position of the flow meter is not full of the pipe, the method of raising the flow half back end pipe can be used to make the pipe full. It is strictly prohibited to install the flow meter at the highest point of the pipe and the water outlet.

For technical consultation related to HSD pipeline magnetic inductive flowmeter, please feel free to contact Supmea Measurement and Control.