Current position > Product detail
『Small flow turbine flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
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_600x400.jpg)
2. What are the advantages and disadvantages of turbine flow meters
Analysis of the advantages and disadvantages of turbine flow meters 1 Advantages: High precision: Typical accuracy can reach ± 0.5% to ± 1%, and some high-precision models can reach ± 0.2%. Good repeatability: Short term repeatability error is usually less than 0.05%. Wide range ratio: generally up to 10:1, and special design can reach 30:1. Fast response: Time constant and width can reach 10-50 milliseconds, suitable for dynamic flow measurement. Output signal standard: Directly output pulse frequency signal, easy to digitize. Compact structure: relatively small volume, low installation space requirements Disadvantages • High medium requirements: must be clean and free of small particles, solid particles can cause bearing jamming • Strict installation requirements: need to ensure the straight pipe section (D is the pipe diameter) from the front 10D to the back 5D • Bearing wear problem: mechanica