『Principle of metal rotor flowmeter』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)
What is the working principle of a metal tube rotor flowmeter?
2. The difference between metal rotor flowmeter and metal float flowmeter
The main differences between metal rotor flowmeter and metal float flowmeter are reflected in their characteristics, measurement principles, and applicable scenarios..
1. Different characteristics: Metal float flowmeter: very suitable for measuring small pipe diameters and low flow rates on site, with low requirements for straight pipe sections.
. Its structure is simple, maintenance is minimal, and the cost is relatively reasonable. Metal rotor flowmeter: It is more adaptable to complex and difficult to cope with on-site environments that ordinary instruments cannot handle, and is more suitable for measurement in the industrial field.Secondly, the measurement principle is slightly different. Metal float flowmeter: Its principle is that in the vertical measuring tube of the flowmeter, when the fluid flows through, the float will float upward.
. At a certain position, the lift and gravity exerted on the float reach equilibrium. At this moment, the annular gap area is directly proportional to the rising height of the float, so the position of the float at a certain height represents the actual flow rate. Metal rotor flowmeter: Its working principle is that when the float floats up and down, the position is transmitted to an external indicator through magnetic coupling. This causes the pointer of the indicator to follow the movement of the float and linearly indicate the magnitude of the flow hole through the cam plate.III. Applicable Scenarios Metal Float Flow Meter: Due to its simple structure, easy maintenance, and moderate cost, it
3. Working principle of metal rotor flowmeter
The structure of a metal rotor flowmeter consists of two main parts: one is a conical tube that gradually expands from the bottom, and the other is a rotor with a freely movable centerline.
. When measuring fluid flow rate, the flow defect modifier flows in from the bottom of the conical tube, generating an impact force on the rotor. The magnitude of this force increases with the increase of flow rate. When the flow is large enough, this signal sensitivity is strong enough to lift the rotor and make it rise. At the same time, the fluid flows out from the top through the annular section between the rotor and the conical tube wall. When the force exerted by the fluid on the rotor reaches equilibrium with the weight of the rotor in the fluid (i.e., the displayed weight), the rotor stays at a certain
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