Application Field Of Flow Meters

The application of flow measurement technology and instruments can be roughly divided into the following fields.
industrial production
Flow meters are one of the major types of instruments and devices in process automation. They are widely used in various fields of the national economy, such as metallurgy, electricity, coal, chemical industry, petroleum, transportation, construction, light textile, food, medicine, agriculture, environmental protection, and people's daily life. They are important tools for developing industrial and agricultural production, saving energy, improving product quality, and enhancing economic benefits and management levels. They play an important role in the national economy. In process automation instruments and devices, flow meters have two main functions: as detection instruments for process automation control systems and as total quantity meters for measuring material quantities.
Energy metering
Energy is divided into primary energy (coal, crude oil, coalbed methane, petroleum gas, and natural gas), secondary energy (electricity, coke, artificial gas, refined oil, liquefied petroleum gas, steam), and energy carrying working fluids (compressed air, oxygen, nitrogen, hydrogen, water), etc. Energy metering is an important means of scientifically managing energy, achieving energy conservation and consumption reduction, and improving economic benefits. Flow meters are an important component of energy metering instruments. Commonly used energy sources such as water, artificial gas, natural gas, steam, and oil use an extremely large number of flow meters, which are indispensable tools for energy management and economic accounting.
environmental protection
The discharge of smoke, waste liquid, sewage, etc. seriously pollutes the atmosphere and water resources, posing a serious threat to the human living environment. The country regards sustainable development as a national policy, and environmental protection will be the biggest issue of the 21st century. To control air and water pollution, it is necessary to strengthen management, which is based on quantitative control of pollution levels. Flow meters play an irreplaceable role in measuring the flow of flue gas emissions, sewage, and exhaust gas treatment.
China is a country primarily powered by coal, with millions of chimneys continuously emitting smoke into the atmosphere. Smoke emission control is an important project for eradicating pollution, and each chimney must be equipped with smoke analysis instruments and flow meters to form a continuous emission monitoring system. The flow rate of flue gas has great difficulties, including the large and irregular shape of the chimney, unpredictable changes in gas composition, large flow rate range, dirt, dust, corrosion, high temperature, and no straight pipe section.
Transportation
There are five ways: railway and road, air, water transportation, and pipeline transportation. Although pipeline transportation has already existed, its application is not widespread. With the prominent environmental issues, the characteristics of pipeline transportation have attracted people's attention. Pipeline transportation must be equipped with flow meters, which are the eyes for control, distribution, and scheduling, as well as essential tools for safety monitoring and economic accounting.

Biopharmaceuticals
The 21st century will usher in a century of life sciences, and industries characterized by biotechnology will experience rapid development. There are many substances that need to be monitored and measured in biotechnology, such as blood, urine, etc; The pharmaceutical industry also lacks control flow instruments for various pharmaceutical formulas and liquid formulation components. The difficulty of instrument development is extremely high, with a wide variety of varieties.
scientific experiment
The flow meters required for scientific experiments are not only numerous in quantity, but also extremely diverse in variety. According to statistics, a large part of the more than 100 types of flow meters are used for scientific research purposes. They are not mass-produced and are sold on the market. Many research institutions and large enterprises have set up specialized teams to develop dedicated flow meters.
Oceans, Rivers and Lakes
These fields are open channels, and generally require detection of flow velocity before calculating flow rate. The physical principles and fluid dynamics foundation on which flow meters and flow meters are based are common, but there are significant differences in instrument principles, structures, and usage prerequisites.