1. Industrial production: Flow meter is one of the major types of instrumentation in process automation instruments and devices. It is widely used in metallurgy, electric power, coal, chemical, petroleum, transportation, construction, textile, food, medicine, agriculture, Environmental protection and people’s daily life and other areas of the national economy are important tools for developing industrial and agricultural production, saving energy, improving product quality, and improving economic efficiency and management. They occupy an important position in the national economy.
2. Energy measurement: energy is divided into primary energy (coal, crude oil, coal-bed methane, petroleum gas and natural gas), secondary energy (electricity, coke, artificial gas, refined oil, liquefied petroleum gas, steam) and energy carriers Quality (compressed air, oxygen, nitrogen, hydrogen, water), etc. Energy metering is an important means for scientifically managing energy, realizing energy saving and consumption reduction, and improving economic efficiency. Flow meters are an important part of energy measurement instruments. Commonly used energy sources such as water, artificial gas, natural gas, steam and oil all use an extremely large number of flow meters, which are indispensable tools for energy management and economic accounting.
3. Environmental protection: To control the pollution of air and water, management must be strengthened. The basis of management is the quantitative control of pollution. The flowmeter has an irreplaceable position in the flow measurement of flue gas discharge, sewage, and waste gas treatment.
4. Transportation: There are five ways: railway, road, aviation, water transportation and pipeline transportation. Although pipeline transportation has existed for a long time, its application is not universal. With the emergence of environmental protection issues, the characteristics of pipeline transportation have attracted people's attention. Pipeline transportation must be equipped with flowmeters, which are the eyes of control, distribution and scheduling, as well as an indispensable tool for safety monitoring and economic accounting.