Design And Implementation Of System Flow Detection Based On PLC

With the continuous development of the global industrial economy and China’s accession to the WTO, the oil and energy issues is increasingly becoming a major concern of the people. The traffic is the most abundant categories of temperature, pressure, level, flow four parameters inside the content in the petrochemical industry. Economic development in the market today, the importance of flow measurement is self-evident; from the control point of view, the system stability and optimization of these two eternal theme also needs to flow to assess.In the industrial field, the instrument for measuring fluid flow are collectively referred to as a flow meter or flow meter. The flowmeter is one of the most important instrument in the industrial measurement. With industrial development, the increasingly high demand for flow measurement accuracy and range. On the one hand, in order to ensure the transfer of the value of the flow metering equipment, on the other hand with the world, requiring flow measurement equipment in the field of production and trade settlement must ensure that the measurement precision during application to avoid the instrument of trade disputes, production waste and equipment operation and accidents, requires the existence of the standard equipment of the flow detection. At the same time, the flow meter testing standards detector for the development of the petrochemical enterprises of great significance.This article describes the issues related to traffic detection, summarizes the development of flow meter products at home and abroad, as well as the flow meter testing problems at home and abroad status quo and development trend; several typical flow detection of standard equipment; a conclusion flowmeter detection device has a number of issues, indicating that the flow of liquid level detection technology applied in this topic; to establish a high-precision liquid level measurement device to measure the liquid level to calculate the flow of the liquid, and then flowmeter accuracy of device has been detected.