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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. Installation requirements and precautions for turbine flow meters
The installation requirements and precautions for turbine flow meters are as follows: The turbine flow meter sensor should be installed in a location that is easy to maintain, has no vibration, strong magnetic interference, or thermal radiation in the pipeline.
. If installed outdoors, measures should be taken to avoid direct sunlight and rain. Installation requirements and precautions: For sensors installed horizontally, there should be no visible inclination in the pipeline, and the inclination angle should be within 5 °. The vertical deviation of the sensor pipeline installed vertically should be less than 5 °, and the fluid direction should be from bottom to top. The bypass and shut-off valves should be installed in places where the flow cannot be stopped, so that when maintenance or calibration of the flowmeter is needed, it does not affect the normal flow of the fluid. If the fluid conta