With the continuous development of science and technology, automation technology has been widely used in many industries.In the petrochemical industry, the application of automation instrumentation plays a very important role.It improves the production efficiency, reduces the production cost, and ensures the production safety and environmental protection.This paper will introduce some typical application cases of automation instruments in petrochemical industry to illustrate their importance and advantages.

One、Application Case of Pressure Sensor in Oil and Gas Production

In the process of oil and gas production, it is very important to measure and control the pressure accurately.The traditional pressure measurement method requires manual operation, which is not only time-consuming and labor-intensive, but also vulnerable to human error.The pressure sensor can realize the real-time monitoring and precise control of the pressure, and improve the production efficiency and accuracy.Taking an oil field exploitation as an example, the real-time monitoring and control of wellhead pressure can be realized by installing pressure sensors and corresponding automatic control system.When the wellhead pressure exceeds the set value, the automatic control system will automatically adjust the production parameters of the oil well and adjust the oil production, thus avoiding the occurrence of backpressure, borehole collapse and other phenomena, and ensuring the normal operation of the oil well.

Two、Application of Level Gauge in Tank Management

In the petrochemical industry, storage tanks are important equipment for storing crude oil, petrochemical products and chemicals.Precise measurement of liquid level is very important to ensure the normal operation and safety management of storage tanks.The traditional liquid level measurement method requires manual operation, which is time-consuming and laborious, and is easily affected by human errors.The automatic measurement and monitoring of the liquid level can be realized by using the liquid level meter, and the measurement accuracy and safety are improved.

Taking a chemical storage tank as an example, by installing a liquid level meter and the corresponding automatic control system, the real-time monitoring and alarm of the liquid level of the material in the storage tank can be realized.When the liquid level exceeds or falls below the set range, the automatic control system will send an alarm signal and take corresponding measures, such as starting the alarm device and automatically stopping feeding, so as to avoid the impact of too high or too low liquid level on the safety of storage tanks and production lines.At the same time, the tank management and production plan are optimized by monitoring and recording the change of liquid level.Taking a chemical storage tank as an example, by installing a liquid level meter and the corresponding automatic control system, the real-time monitoring and alarm of the liquid level of materials in the storage tank can be realized.When the liquid level exceeds or falls below the set range, the automatic control system will send an alarm signal and take appropriate measures, such as starting the alarm device and automatically stopping feeding, to avoid the impact of too high or too low liquid level on the safety of storage tanks and production lines.At the same time, the tank management and production plan are optimized by monitoring and recording the change of liquid level.

Three、Application of Temperature Controller in Oil Refining Process

Temperature is an important control parameter in the process of petroleum refining.Traditional temperature control methods require manual operation, slow response, and are easily affected by the environment and operators.The temperature controller can realize the automatic measurement and control of temperature, and improve the stability and accuracy of temperature control.

Taking a refinery as an example, the temperature of different refinery units can be monitored and controlled in real time by installing the temperature controller and the corresponding automatic control system.The system can automatically adjust sensors and actuators according to the set temperature curve and process requirements to achieve accurate temperature control.Through the temperature controller, the problems of product quality degradation and equipment life shortening caused by temperature deviation from the set value can be avoided, and the stability and economic benefits of the refining process can be improved.

To sum up, the application cases of automation instruments in the petrochemical industry are very important.The application of pressure sensors, liquid level meters and temperature controllers improves production efficiency and quality, reduces production costs, and ensures production safety and environmental protection.With the continuous development and innovation of automation technology, it is believed that automation instruments will play a more important role in the petrochemical industry and make greater contributions to the sustainable development of the industry.