NEWS

Products

Contact us

Yuyao Yinhuan Flowmeters Ltd.

Phone:+86 574 62689077

Fax:+86 574 62689088

Address:Northeast China Yuyao City in Zhejiang

Rainbow Road on the 1st Industrial Park

Zip Code:315400

Common metal tube and metal rotor flowmeter

You are here: HOME >> News >> Technical Articles

Common metal tube and metal rotor flowmeter

Release date:2015-07-21 00:00 Source:http://www.yinhuanchina.com Click:

   

    Metal tube, also known as metal rotameter is a variable area flowmeter, in a widening from the bottom up vertical tube, float gravity circular cross-section is powered by a liquid bear float free to rise and fall within the cone. At a flow rate and the buoyancy effect up and down movement, after the float weight balance, reached with the dial instruction flow through magnetic coupling.


    Metal rotameter consists of two parts, one is from the flowmeter gradually expanding upward conical tube; flowmeter another conical tube is placed in the center line of the tube and can move freely up and down rotor. Flowmeter when measuring fluid flow, the measured fluid from the tapered lower end of the inlet tube, the fluid flow impact of the rotor, and it produces a force (the magnitude of the force varies with the size of the flow); when the flow is large enough , the force generated by the rotor hold up, and make it rise. At the same time, the measured fluid flow through the annular cross-section between the rotor and the conical wall, the outflow from the top. When the measured fluid flow forces on the rotor, the rotor is exactly equal to the weight of the fluid (called display weight), the rotor forces in equilibrium and stay at a certain height. Analysis showed that; a rotor position height of the tapered tube, through which the flow has reciprocal relationship. Therefore, the height of the rotor position observer conical tube, it is possible to obtain a corresponding flow rate value.


    In order to make the center line of the rotor in the tapered tube moves up and down without touching the wall, usually two ways: one is in the center of the rotor provided with a guide mandrel, in order to maintain the rotor at the centerline of the tapered tube up and down sports, the other is in the edge of the rotor disc chute opened a road, when the fluid flows through the bottom-up rotor, the rotor side bypass, while passing through the chute produce reverse thrust, the rotor centerline around constantly rotating, the rotor can be maintained without hit the wall at work. Rotor material available spinner stainless steel, aluminum, bronze or the like.


    When the metal tube bottom-measured medium through the measuring tube, the float rises and lower ends are formed to produce a differential pressure force, suffered when the float rises immersed in a fluid force is greater than the weight of the float, the float will rise, along with the annulus area increases, the annulus of the fluid flow rate decreased rapidly, the upper and lower ends of the float to reduce the differential pressure acting on the lifting force of the float decreases, until the lifting force of the float and the weight balance immersed in the fluid, the float will be stable in the first position, That is the level of the float position corresponds to the size of the measured medium flow. Built-in magnet floats in the float moves up and down with the media, the magnetic field varies with the movement of the float. By a magnetic sensor magnetic field changes will be converted into electrical signals by the analog to digital conversion, digital filtering, temperature compensation, the microprocessor processing, digital to analog conversion, LCD, switch control output to display the instantaneous flow rate and cumulative flow size and be control.


Related Tags:Metaltube

S
e
r
v
i
c
e
二维码

Scanning

分享
Welcome to our message
Please enter the message content here!
Full name
Contacts
Phone
Mobile Phone