Current Location： Home > News > Chemical Knowledge > In-depth analysis of the principle of glass rotameter will take you on a wonderful journey of high-precision flow measurement.

[Chemical Knowledge]：In-depth analysis of the principle of glass rotameter will take you on a wonderful journey of high-precision flow measurement.

Read： 321 Time：13months ago Source：Transform the World with Simplicity

As an important instrument in the field of fluid measurement, glass rotameter has the characteristics of high precision and convenient use, and is widely used in chemical, pharmaceutical and food fields. So, how does it achieve high-precision flow measurement? Let's take a look at it.

1. The structure and working principle of glass rotameter

glass rotameter is mainly composed of conveying pipe, rotor, vibration probe and other components. The rotor is the core component of the whole instrument, and its design adopts the principle of aerodynamics. When the fluid passes through the rotor from the delivery pipe, the rotor is rotated by the force of the fluid.

During the rotation of the rotor, the vibration probe is used to sense the rotation speed of the rotor, and the rotation speed is converted into a corresponding electrical signal output through a signal conversion circuit. From this, the flow rate of the fluid can be calculated, that is, Q = π D²nV/4, where π is the circumference, D is the rotor diameter, n is the rotation speed, and V is the fluid velocity.

2. The characteristics of glass rotameter

glass rotameter has the characteristics of high precision, good reliability and large measurement range. Its accuracy can generally reach 1 ~ 2% or higher, which can meet the measurement requirements of most occasions; at the same time, because of its simple structure and convenient use, it is also widely favored in practical applications.

In addition, the glass rotameter also has the advantages of anti-corrosion and anti-wear, and can adapt to the requirements of various harsh working conditions. Its sealing performance is good, not easy to leak, and the independent structure is easier to maintain and manage.

3. How to use the glass rotameter

Before using the glass rotameter, it is necessary to preheat and calibrate. First, the instrument is heated to normal temperature, and then zero calibration and full-scale calibration are performed to ensure the accuracy and reliability of the measurement. When measuring

, it is necessary to pay attention to maintaining the stable state of the flowmeter to avoid generating interference signals such as vortex and vibration. At the same time, the nature and flow of the fluid should be reasonably selected and set to obtain accurate measurement results.

4. Application field of glass rotameter

Due to its high precision and good reliability, glass rotameter is widely used in chemical, pharmaceutical, food and other fields, and can be used to measure various liquids and gases. Flow. For example, in the petrochemical industry, glass rotameters can be used to measure the flow of oil, natural gas, chemical raw materials, etc. to ensure the safety and stability of the production process.

glass rotameter is one of the indispensable instruments in the field of fluid measurement. It has the advantages of high precision, good reliability and convenient use, and is widely used in chemical, pharmaceutical, food and other industries. It is hoped that this article can help readers to understand the principle and use of glass rotameter more deeply, and improve the accuracy and reliability of measurement.