近期,位于新加坡Pular Ular的壳牌远东石油乙烯裂解装置安装了1600套耐德(Netherlocks)阀门锁,作用是防止除焦和安全阀切换过程中的手动阀门误操作。耐德采用的是线性钥匙切换系统,确保操作流程按照预定的顺序进行,只有上一步操作完成才能开始下一步。钥匙的编码保证它只能插入到正确的 Recently, 1,600 sets of Netherlocks valve locks were installed at Shell Far East Petroleum ethylene cracker at Pular Ular in Singapore to prevent manual valve misoperations during decoking and safety valve switching. Nide uses a linear key switch system to ensure that the flow of operations follows a predetermined sequence and that the next step can only be started if the previous step is completed. The key code guarantees that it can only be inserted to the correct one