【摘要】 针对集散控制系统（DCS）在尿素装置控制中的应用状况，研究了一个实际尿素装置的DCS—微机—微机三级计算机优化控制系统，开发了一整套的系统应用软件，完成了尿素生产管理—优化—控制一体化的组织和实现。文中的思想和方法在某尿素生产过程中得到了应用，实施结果令人满意。更多还原

【Abstract】 In this paper, facing a practical urea plant, the structure of 3-layered computer optimal control system is set up. Then the maorganization and implementation of production management-optimizationcontrol integrated system are discussed. The appliestion software has been dereloped and used in an urea factory with satisfying results.更多还原