In order to solve the safety problem of hydraulic and pneumatic control system equipment and enable workers to operate,maintain and inspect under safety condition after entering the dangerous area of the equipment,according to the design concept of the safety area,the design of safety shut-off block of hydraulic and pneumatic control system was proposed,and safety logic control was es-tablished with safety PLC,meeting GB/T 16855.1-2018/ISO 13849-1:2015 mechanical safety standard and the international and EU equipment safety certification requirements.According to different safety functions,pressure and flow requirements,standardized module method was adopted to design the safety shut-off block to save design and investment costs.The practice shows that the safety shut-off block has compact structure and reasonable design,which can effectively shut-off the power energy of equipment and ensure the safety of on-site equipment and workers.
关键词
液压和气动控制系统/安全切断块/标准化模块
Key words
hydraulic and pneumatic control system/safety shut-off block/standardized module
维普
万方数据