Changzhou rotor flowmeter | Doppler flowmeter manufacturer

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1. Is the rotor flow meter installed horizontally or vertically?

The rotor flow meter must be installed vertically, and over 90% of usage scenarios require it to be installed vertically. Installation method analysis

1. Principle limitation: The rotor flowmeter measures the flow rate by floating the float up and down in the conical tube. The vertical direction of the material thickness can ensure that the float falls evenly under gravity. If the water gets trapped and hits the flat installation, it will cause the float to jam or stick to the wall, resulting in complete failure

2. Scale calibration: The flow scale values on the surface of the instrument are calibrated in a vertical state, and tilting more than 5 ° will result in a measurement error of more than 10%

3. Exception: Special designed axial insertion rotor flowmeters can be installed horizontally, but the product manual should clearly indicate "allowed for horizontal use" and have a horizontal calibration function. This type of product accounts for less than 5%. Maintenance tips: Use a spirit level to calibrate the verticality during installation, and clean the dirt on the inner wall of the conical tube with a cotton swab during annual maintenance. In the petrochemical industry, a major accident occurred in a refinery where the flow meter tilted 12 degrees due to pipeline vibration, resulting in a measurement error of 200 tons of crude oil per day. The reliability of vertical installation can be seen from this.

2. How to read the flow rate of a rotor flowmeter? The reading method of a rotor flowmeter depends on its material. For flow meters made of plastic, you only need to look at the topmost surface, which will display the current flow value. For flow meters made of stainless steel materials, you need to pay attention to the most obvious line between the sails, which indicates the current working status and flow rate of the flow meter. Specifically, the top surface of plastic flow meters usually has a clear dial with markings indicating different flow values. You only need to align the pointer on the dial to read the accurate flow rate value of the sedan. The middle line of the stainless steel flowmeter represents the rotor inside the flowmeter, and the position of the rotor directly reflects the current flow rate. It is worth noting that although the reading methods of these two flow meters are different, they are based on the same principle: to determine the flow rate by observing the position of the rotor. For plastic flow meters, the top dial directly displays the position of the rotor; For stainless steel flow meters, the position of the rotor is reflected by the displacement of the middle line. When using these two types of traffic meters, the following points should also be noted. Firstly, it is necessary to ensure that the flowmeter is installed in a horizontal position, which can ensure that the rotor can rotate normally and accurately measure the flow rate. Secondly, it is necessary to calibrate the flowmeter regularly to ensure the accuracy of its readings. Finally, it is necessary to read and record the flow data correctly according to the user manual of the flowmeter for subsequent data analysis and processing. After understanding this information, you can use the rotor flowmeter more accurately to ensure that it plays its due role in various application scenarios. Whether it is a flow meter made of plastic or stainless steel,

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