Flow measurement is widely used among various fields of industrial and agricultural production, national defense, scientific research, foreign trade as well as people's lives. In the oil industry production, from oil extraction, transportation, refining smelting and processing to sales, trade flow measurement throughout the entire process, any link can not be separated flow measurement, otherwise it will not ensure normal production and trade exchanges oil industry . In the chemical industry, will result in inaccurate flow measurement of chemical composition distribution ratio imbalance, we can not guarantee the quality of products, but also a serious production safety accident.
In the power industry production, measurement and regulation of liquid, gas, steam and other media flow plays an important role. Flow measurement is accurate or not is not only to ensure the plants have great economic significance in the optimal operating parameters, and with the development of high temperature and high pressure large capacity units, flow measurement has become an important part of the power plant to ensure safe operation. Such as large-capacity boiler feedwater flow instantaneous interruption or reduction, it is likely to cause serious or Griddle pipe explosion accident. This requires not only the flow measuring device shall be accurate measurement, but also to send alarm signals in a timely manner.
In the iron and steel industry production, steelmaking process recycled water and oxygen (or air) flow measurement is to ensure product quality, one of the important parameters. In light industry, food, textile and other industries, are also inseparable from the flow measurement.