I. 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 carrying media (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.

Second, scientific experiment

The scientific experiment requires not only a large number of flow meters, but also a variety of flow meters. According to the statistics, more than 100 kinds of flowmeters are required for scientific research. They are not mass-produced and are sold on the market. Many scientific research institutions and large companies have specialized teams to develop special flowmeters.

Third, the industrial production process

The flow meter is one of the major instruments in process automation instrumentation and devices. It is widely used in metallurgy, electric power, coal, chemical industry, petroleum, transportation, construction, textile, food, medicine, agriculture, environmental protection and daily life of the people. In various fields such as the national economy, it is an important tool for the development of industrial and agricultural production, energy conservation, improvement of product quality, and improvement of economic efficiency and management level, which occupies an important position in the national economy. In the process automation instrument and device, the flow meter has two major functions: as the total amount of the instrumentation of the process automation control system and the measurement of the quantity of the material.

Fourth, transportation

There are five ways: railway and highway, aviation, water transport, 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.

V. Marine weather, rivers and lakes

These areas are open runners, which generally measure the flow rate and then calculate the flow. The physical principle and fluid mechanics basis on which the flow meter and the flow meter are based are common, but the principle and structure of the meter and the conditions of use are very different.

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