『Metal rotor float 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)
How to read a rotor flowmeter? Why?
The reading method for the rotor flowmeter is as follows: For the sub flowmeter reading method, stand in front of the flowmeter, with your eyes parallel to the float, and move your line of sight horizontally to the left until you see the outline of the float touching the positioning line. The corresponding reading value is at the intersection of the positioning line and the horizontal scale in the middle of the float.. A rotor flowmeter measures fluid flow based on the principle of throttling, but it changes the flow area of the fluid to maintain a constant differential pressure between the upper and lower parts of the rotor. Therefore, it is also known as a variable flow area constant differential pressure flowmeter or a float flowmeter. In a vertical conical tube that expands from bottom to top, the gravity of the circular cross-section float is supported by liquid dynamics, and the float can freely rise and fall inside the conical tube. Under the action of flow velocity and buoyancy, it moves up and down, and after balancing with the weight of the float, it is transmitted through magnetic coupling to indicate the flow rate on the dial. Generally divided into glass and metal flutter rotor flow meters. Metal rotor flowmeter is the most commonly used in industry. For small diameter corrosive media, glass material is usually used. Due to the inherent fragility of glass material, rotor flowmeters made of precious metals such as all titanium are also used for key control points. Rotary flowmeter is a variable area flow meter based on float position measurement. Adopting an all metal structure and modular concept design, it has low pressure loss, large range ratio (10:1),
2. Common faults and solutions of metal tube rotor flowmeter
Common faults and solutions of metal tube rotor flowmeter During use, metal tube rotor flowmeter may encounter various faults.
. The following is an analysis of these common faults and corresponding solutions:Firstly, the flowmeter has large errors. The gas medium is greatly affected by temperature and pressure. The reason is that the measured gas medium is affected by temperature and pressure, resulting in measurement errors. Solution: Use temperature and pressure compensation to obtain the true flow rate. Reason for loosening of moving parts: Long term use, pipeline vibration, and other factors have caused the sensor magnets, pointers, counterweights, rotating magnets, and other moving parts of the float flowmeter to loosen. Solution: First, verify the hunger vertical certificate by manually pushing the pointer. If the data does not match, adjust the relevant components. Adjustments need to be made by professionals, non professionals may cause position loss, and ultimately need to be returned to the manufacturer for calibration. Reasons for installation not meeting requirements: The flowmeter is not kept vertical or horizontal (inclination angle greater than 20 degrees), or there are ferromagnetic objects around the installation location, or the installation location is not far away from the variable diameter port, pump port, process pipeline turning point, etc., or does not meet the requirements of the straight pipe section of the first 5D and the second 250mm. Solution: Ensu
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