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The basic structure principle of turbine flow meter scale impeller

by:Sincerity     2021-02-16
Abstract: the basic structure principle of turbine meter scale impeller information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Intelligent mechanical parts of the turbine flowmeter its principle is: when the flow into the flow time, under the action of diversion body is adjusted and accelerated, because the impeller and the direction of flow at an Angle, the turbine rotational torque, in overcoming friction torque and the fluid resistance. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the basis of the turbine meter scale impeller structure principle, the article details. Intelligent mechanical parts of the turbine flowmeter its principle is: when the flow into the flow time, under the action of diversion body is adjusted and accelerated, because the impeller and the direction of flow at an Angle, the turbine rotational torque, after overcoming friction torque and fluid resistance moment, the turbine to spin. Turbine flowmeter of compact structure, the impeller is flowmeter key-module, is the sensor detecting element. Impeller is made from high magnetic conductivity material hard 2 a12 aluminum, and the table body coaxial, leaf number commonly used 12 ~ 24, the impeller geometry shape and size has great influence on the performance of sensor, the rotation of the blade Angle and lead accuracy, is directly related to the precision of the turbine flowmeter, namely the value of testing linearity. This kind of parts processing, for the first time in the company. As according to the general process, in milling machining center zui is good, but it will increase the processing cost for several times. Considering the flowmeter are also developing prototype, to do the cost is saved, and shall not affect the dimensional accuracy, so we in view of the existing workshop equipment processing capacity, decided on the ordinary horizontal milling processing. The impeller machining difficulties are the ( 1) Impeller material of 2 a12, high accuracy, easy to deformation in machining process; ( 2) Impeller blade wall thickness of the wall thickness is only 1 ~ 2 mm, machining process, its diameter, the greater the processing parts vibrate when more of a problem, to produce a great impact on the dimensional accuracy, directly affect the gas flow velocity and testing linearity of value; ( 3) Center hole and outer diameter difference is big, zero alignment requirements. 015mm。 For the above processing difficulty, we formulate the corresponding measures. Make the two sets of process scheme we consider various factors, work out the following two process: ( 1) One way. Outside circle, a few pieces as one & ndash; Milling spiral blade & ndash; Fitter to remove burrs & ndash; Car broke in piece, boring and sink hole and cylindrical & ndash; Slot milling & ndash; Impeller to do dynamic balance & ndash; Surface oxidation treatment. To plan a try a processing, the result is not very ideal, after milling blade thickness is only 1 mm, use it to act as a benchmark locating boring, it is easy to make the blade deformation, and internal and external circular coaxial degree is difficult to guarantee, thus improving scheme. ( 2) The improved scheme 2. Coarse car ( Allowance 1 mm each side, left side convex lengthen 15 mm, reserved for milling chuck) — Heat treatment ( Material with heat treatment to strengthen ability, so arrange a heat treatment process after rough machining parts, processing to eliminate stress) — Fine car ( Hole and cylindrical one sword, switching on the soft claw, so to ensure that the coaxial degree) — — Milling ( Hanging round, with the aid of tooling milling uniform spiral blade) — Clamp ( Remove all burrs) — Milling ( Slotting to chuck) — Impeller to do dynamic balance & ndash; Surface oxidation treatment. The above special jig is all there is in this article, you are welcome to inquire me factory flowmeter selection, quotation, etc.
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