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Installation requirements of insertion magnetic flowmeter
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The insertion electromagnetic flow sensor and electromagnetic flow converter are matched to form an insertion electromagnetic flowmeter, which can be used to measure the volume flow of various conductive liquids in the conveying pipeline. The insertion electromagnetic flowmeter and the pipeline are fixedly installed through the installation base, ball valve, compression nut and positioning screw. The insertion electromagnetic flowmeter is suitable for large-caliber working sites and is widely used in industries such as petroleum, chemical industry, metallurgy, food, environmental protection, water supply and drainage, water treatment, and water plants.
Features of Insertion Electromagnetic Flowmeter
(1) Insertion electromagnetic flow sensor has almost no pressure loss and low energy consumption, which is low energy consumption;
(2) The measurement accuracy will not be affected by changes in physical parameters such as temperature, pressure, density, viscosity and conductivity of the medium;
(3) Insertion electromagnetic flowmeter adopts a new low-frequency square wave excitation, with relatively stable zero point, strong anti-interference ability, good stability and high working reliability;
(4) The flowmeter not only supports 0-10mA or 4-20mA standard current output, but also 1-5kHz frequency output;
(5) Compared with general electromagnetic flowmeters, the manufacturing cost is low, and the installation and maintenance costs are also low, which is particularly suitable for sites with large pipe diameters;
The insertion structure can be installed and disassembled without stopping water under low pressure or pressure, and is very suitable for fluid measurement in existing pipelines and convenient for instrument maintenance and repair;Installation requirements for insertion electromagnetic flowmeter
[Choice of installation environment]
It should be kept away from equipment with strong magnetic fields, such as large motors and large transformers, as far as possible
The installation site should not have strong vibrations, and the pipeline should be firmly fixed. The ambient temperature should not change much. The installation environment should be easy to install and maintain.
[Choice of installation location]
The installation location of the insertion electromagnetic flowmeter must ensure that the pipeline is always filled with the measured fluid.
Choose a place where the fluid flow pulse is small. That is, it should be away from local resistance parts such as pumps, valves, and elbows. When measuring two-phase (solid, liquid or gas, liquid) fluids, a place that is not easy to cause phase separation should be selected. Negative pressure should be avoided at the measuring site.
The diameter or circumference of the side pipe is easy to measure, and the ellipticity should be small.
[Length of straight pipe section]
The length of the straight pipe section on the upstream side of the insertion electromagnetic flowmeter sensor installation pipeline should be greater than or equal to 10DN, and the downstream side should be no less than 5DN. Dn is the diameter of the measured pipeline.
[Flow control valve and regulating valve]
The flow control valve should be installed on the measured pipeline on the upstream side of the sensor, and the flow regulating valve should be installed on the downstream side of the sensor. When measuring, the flow control valve should usually be in the fully open position.