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针对吐哈油库低位置输油、高位置装车过程中存在的输油压力和油流不稳的问题 ,提出对输油泵采用变频加软启动的控制方式 ,通过PLC控制系统优化编程 ,将PID控制与开关量控制进行有机结合 ,并增设超压报警保护和紧急停泵保护。实践表明 ,变频加软启动的控制方式能有效保证吐哈油库输油泵的安全、平稳、高效运转 ,提高油库的经济效益。
Aiming at the problems of oil delivery pressure and oil flow instability in the low position oil delivery and high position loading of Tuha depot, the control method of variable frequency and soft start of the oil pump is put forward. Through the optimized programming of PLC control system, Control and digital control of the organic combination, and additional overpressure alarm protection and emergency stop pump protection. Practice shows that the control method of frequency conversion plus soft start can effectively ensure the safe, smooth and efficient operation of the oil pump in Tuha Oil Storage and improve the economic benefits of the oil depot.