Abstract: the structure of the turbine meter scale sensor information produced by excellent flow meter, flow meter manufacturer to offer you the quotation.
Classification of turbine flowmeter (
l)
According to the sensor structure classification l)
The axial type (
Ordinary)
Impeller shaft center coincide to the pipe axis, is one of the leading products, TUF has a full range of products,
A DN600 DN10)
2)
Cut to the type of impeller shaft perpendicular to the pipe axis, fluid.
More flow meter manufacturers choose model price quote you are welcome to inquire, here is a turbine meter scale sensor details the structure of the article.
Classification of turbine flowmeter (
l)
According to the sensor structure classification l)
The axial type (
Ordinary)
Impeller shaft center coincide to the pipe axis, is one of the leading products, TUF has a full range of products,
A DN600 DN10)
2)
Cut to the type of impeller shaft perpendicular to the pipe axis, the direction of flow in the plane of the blades 9 zero Angle of attack & deg;
Products, applicable to small micro flow.
3)
Mechanical type impeller rotation directly or via magnetic coupling drive the mechanical structure, instructions, integrating total measurement accuracy is slightly lower than the electrical signal detection sensor, the sensor and display unit of one-piece, welcomed by users.
4)
Special used in oil drilling downhole operation and underground mining with losing, measuring medium such as mud and flows, sensor restricted volume, resistance to high pressure, high temperature and fluid impact, etc.
5)
Self-tuning double of gas turbine model can be used for gas flow measurement, the sensor is composed of main, auxiliary double impeller, automatic correction can be made of two impeller rotation speed difference changes in the flow characteristic.
6)
Wide viscosity model based on porter pressure balance type floating rotor structure to expand on the taper and the diameter of the cone, increase the viscosity of the wing of compensation and pressure on the blade structure measures, such as the sensor is suitable for high viscosity fluid, such as heavy oil, the viscosity can be up to 30 was/s7)
Insert into flow sensor by measuring head, inserted rod, human institution, converter and instrumentation table body, etc.
(
2)
According to the classification of measured medium l)
Type is suitable for measuring low viscosity (
≤
5mpa.
s)
Liquid volume flow, nominal diameter for DN10 to 24 '), the accuracy grade of 0.
25 a 0.
5 (
High precision of 0.
15 the use of medium temperature for a 20 + 120 ℃ pressure is 6.
Corrosion type suitable for corrosive fluids, such as dilute sulphuric acid and dilute hydrochloric acid and dilute nitric acid, usually only small products (
A (3/4 ')
。
High temperature type is suitable for the liquid temperature under 300 ℃, liquid temperature being measured restricted by detecting coil heat resistance performance.
Low temperature type by measurement of body can be as low as 250 ℃, used in liquid oxygen, liquid nitrogen fluid measurement, etc.
High viscosity model to adapt to the liquid viscosity of 70 a, 400 mpa & middot;
S, usually diameter is larger but the higher the viscosity, the same sensor, when the fluid viscosity increases will raise the lower limit of linear flow, and the degree of narrowing the scope.
2)
Ordinary clean gas flow rate, the nominal diameter for DN15 DN350, fluid temperature is 20 + 120 ℃, a pressure of 2.
5 a 10 mpa, precision grade 1 level.
Gas type is suitable for liquefied petroleum gas (LPG).
, artificial gas, natural gas and liquefied petroleum gas, etc. , to adopt automatic oiler bearing lubrication protection, avoid impurities in the moving parts, improve the service life.
Structure of most of them adopt mechanical on-site display device. It can also be used with high resolution output pulse signal optical fiber technology, diameter series for a DN600 DN25, working pressure & le;
10 mpa, 1% accuracy for soil,
0 or soil.
5%)
o(
3)
According to signal detection methods of classification l)
Inductive sensor impeller in permanent magnetic materials are embedded.
When the impeller and the rotating permanent magnetic materials, alternating magnetic field near and far away from the sensor table in vitro testing coil, coil induction electric potential with the changes, the cycle frequency signal after amplification output.
2)
Variable reluctance impeller blade or tire made of magnetic materials, sensors equipped with permanent magnetic materials in table coil in vitro were tested.
When the impeller rotates, the formation of permanent magnet material within the coil magnetic circuit, because of magnetic conductivity blade near or far away from alternately, flux produce periodic changes, the equivalent impedance of the coil, as well as the change in the amplification circuit to produce continuous pulse wave.
3)
Reed pipe (
Dry reed pipe)
Embedded in the impeller (
Or its synchronous rotating components)
The permanent magnetic materials in the cycle to open and close sensor table in vitro flute of reed pipe reed contacts, this kind of switch function make the constant current (
Or constant pressure)
Electrical pulse signal source.
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