常规仪表的23种故障及处理知识,必须get,遇到故障立马解决!
自动化仪表系统作为工业生产的神经决定着生产过程的稳定与高效,特别对于石油化工行业往往起到决定性的作用,所以对于石油化工行业自动化仪表系统的稳定至关重要。这也对仪表维护人员的工作能力、故障判断能力、业务水平提出了要求,也是维护人员取得工艺人员信任、彼此配合密切的关键。
由于石油化工生产操作管道化、流程化、全封闭等特点,尤其是现代化的化工企业自动化水平很高,工艺操作与检测仪表密切相关,工艺人员通过检测仪表显示的各类工艺参数,诸如反映温度、物料流量、容器的压力和液位、原料的成分等来判断工艺的生产是否正常,产品的质量是否合格,根据仪表的指示加量或减产,甚至停车。
仪表指示出现异常情况(指示偏高、偏低,不变化,不稳定等),本身包含两种因素:一是工艺因素,仪表正确的反映出工艺的异常情况;二是仪表因素,由于仪表(检测环境)某一环节出现故障导致工艺参数指示与实际不符。这两种因素总是混淆在一起,很难马上判断出故障到底出现在哪里。
仪表维护人员要提高仪表故障判断能力,除了对仪表原理、结构、性能特点熟悉外,还需熟悉测量系统中的每一个环节,同时,对工艺流程及工艺介质的特性、化工设备的特性应有所了解,这能帮助仪表维护人员拓展思路,由助于分析和判断故障现象。
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来源:网络
由化工707编辑整理
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