Application of flowmeters

The application of flow measurement technology and instrumentation has roughly the following areas.

Industrial production flow meters are one of the major instruments in process automation instrumentation and devices. They are widely used in metallurgy, power, coal, chemicals, petroleum, transportation, construction, textile, food, medicine, agriculture, environmental protection, and people. Every area of ​​the national economy, such as daily life, is an important tool for developing industrial and agricultural production, saving energy, improving product quality, and improving economic efficiency and management. It plays an important role in the national economy. In the process automation instrument and device, the flow meter has two major functions: as the total amount of the measuring instrument and the quantity of the measured material of the process automation control system.

Energy metering 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-carrying working fluid (compressed air, Oxygen, nitrogen, hydrogen, water, etc. Energy measurement is an important means of scientifically managing energy, realizing energy saving and consumption reduction, and improving economic efficiency. Flow meters are an important part of energy metering devices. The commonly used energy sources such as water, artificial gas, natural gas, steam, and oil products use a very large number of flow meters, which are indispensable tools for energy management and economic accounting.

The emissions of environmental protection fumes, waste liquids, and sewage seriously pollute the atmosphere and water resources and seriously threaten the human living environment. The country regards sustainable development as a national policy, and environmental protection will be the biggest issue in the 21st century. The air and water pollution must be controlled, and management must be strengthened. The basis of management is the quantitative control of the amount of pollution. The flowmeter has an irreplaceable position in terms of flue gas emissions, sewage, and exhaust gas treatment flow metering.

China is a country where coal is the main energy source. There are millions of chimneys in the country that continuously emit smoke to the atmosphere. Flue gas emission control is an important project to eradicate pollution. Each chimney must be equipped with flue gas analysis instruments and flow meters to form a continuous emission monitoring system. The flow rate of the flue gas is very difficult. Its difficulty is that the size of the chimney is large and its shape is irregular, the gas composition changes indefinitely, the flow velocity range is large, dirt, dust, corrosion, high temperature, and no straight pipe sections.

There are five ways of transportation: railway, highway, aviation, water transportation and pipeline transportation. Although pipeline transportation has already existed for a long time, its application is not widespread. With the outstanding environmental protection issues, the characteristics of pipeline transportation have attracted people's attention. Pipeline transportation must be equipped with a flowmeter. It is the eye of control, distribution and dispatch, and it is also an essential tool for safety supervision and economic accounting.