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1. Turbine flowmeter
Turbine flowmeter is a speed type flow instrument with high measurement accuracy, fast response, and high pressure resistance, which is widely used in industrial production.
1. Structure of Turbine Flow Meter The turbine flow meter is mainly composed of a turbine, a guide vane, a magneto electric induction converter, a housing, and a preamplifier.
. Turbine: Made of stainless steel material with high magnetic permeability and placed in ball bearings with low friction. The turbine core is equipped with spiral blades, and fluid acts on the blades to rotate them. Guide vane: composed of a guide ring and a guide seat, it allows the fluid to reach the front guide of the turbine, avoiding changes in the angle of action between the fluid spin and the turbine blades, and ensuring instrument accuracy. The guide vane is also equipped with ball bearings to support the turbine. Magnetoelectric induction converter: composed of coils and magnetic steel, it converts the rotational speed of the blades into corresponding electrical signals, which are supplied to the preamplifier for amplification. Shell: Made of non-magnetic stainless steel, used to fix and protect internal components, and connected to fluid pipelines. Pre amplifier: amplifies the weak electrical signal output by the magneto electric induction converter for remote transmission.2. Working principle of turbine flowmeter: When the fluid passes through the gap between the turbine blades and the pipeline, the force generated by the pressure difference before and after the blades pushes the blades, causing the turbine to rotate.
. At the same time as the turbine rotates, the highly magnetic turbine periodically scans the mag
2. What are the measurement ranges of turbine flow meters?
1、 Turbine flowmeter is based on the electromagnetic induction generated by the rotation of turbine blades inside the flowmeter to measure the flow rate. It can measure both liquids and gases, and is very sensitive. The diameter for measuring liquids is generally DN4- DN200, and for measuring gases it is generally DN20- DN300;
2、 Turbine flowmeter measures liquids with a very small diameter and good economy. The units are generally m3/h (cubic meter/hour), L/min (liter/base silver minute), etc. It has instantaneous flow display and cumulative flow display;
3、 The measurement range corresponding to different diameters of turbine flow meters is: liquid measurement: (unit of measurement: m3/h): DN4: 0.04--0.25; DN6：0.1---0.6； DN10：0.2---1.2； DN15：0.6---6； DN20：0.8---8； DN25：1---10； DN32
1.5---15； DN40：2---20； DN50：4---40； DN65：7---70； DN80：10---100； DN100：20---20
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