Frequent shutdown of the cracking gas compressor resulted in a large number of cracking gas flares, which seriously affected the company's economic benefits. After several years of hard work, the company eliminated the hidden dangers caused by the compressor shutdown, modified the auxiliary system that was not matched, and improved the working state of the compressor. For more than one year since the expansion, there has been no accident of compressor shutdown due to its own reasons, which has greatly reduced the company's economic losses and laid the foundation for the long-term smooth operation of the entire plant.

The influence of the speed control system The speed control system of the cracking gas compressor adopts the @AABCDEB575 governor, which has many components, complicated structure, high precision of installation requirements, harsh operating conditions, and easy adjustment by internal and external factors during use. Such as its own mechanical properties, the speed of the oil is dirty, the steam quality is poor, the oil system is faulty, it will cause the adjustment to be in place or even malfunction and affect the operation of the compressor. The instrument is a window for monitoring the operation status of the unit, and is the basis and tool for the unit to operate in a controlled state. The sensitivity, accuracy and reliability of the instrument are necessary guarantees for the safe operation of the unit. If the measurement feedback signal of the operating parameters is incorrectly indicated and the control instrument fails, especially the key parameters and key instruments, the operation will cause large fluctuations, and the unit will cause the unit to stop. If the instrument parts are aged or repaired in time, it will affect the normal use of the instrument.

When the degree of vacuum is lowered, the turbine exhaust pressure and temperature rise. In order to ensure the speed, the turbine opening speed increases, which affects the mechanical performance of the turbine and consumes a lot of steam. Therefore, the tightness of the vacuum system and the reliability of the atmospheric safety valve directly affect the vacuum degree of the condenser, which in turn affects the normal operation of the turbine.