吉林化肥厂801工段共分二期建成,一期工程是苏联帮助设计建成的,后一期是我国自行设计后建成。从自控设计看来基本上与苏联设计相仿,自动化水平较低,就是原设计所采用的一些仪表及调节器,也因存在若干问题,以致长期以来没有开起。这样,就造成操作人员较多,摆脱不了较重的体力劳动。随着生产的发展,越来越迫切要求提高自动 Section 801 of Jilin Chemical Fertilizer Plant was completed in two phases. The first phase of the project was designed and completed by the Soviet Union and the latter phase was completed after China’s own design. From the control design seems essentially similar to the Soviet design, the lower the level of automation is the original design of some of the instruments and regulators used, but also because of the existence of a number of issues, which has not opened for a long time. In this way, resulting in more operators, can not get rid of heavier manual labor. With the development of production, more and more urgent requirements are raised automatically