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大慶煉化乙腈加堿改造成功

   2010-11-05 IP屬地 山東
  大慶煉化聚合物一廠乙腈車間日前成功完成了加堿系統改造,消除了員工加堿的不安全隱患,穩定了反應器pH值變化范圍,提高了產品質量,同時也降低了員工的勞動強度,節約了用堿量。系統投用后,產品的收率提高了3~4個百分點。


  堿罐加堿系統改造主要是在堿罐V803上增加一臺單法蘭液位計,在泵P802回流線上增加一個pH計,并且將兩個信號同時引入主控室DCS,在V803至R801堿線上新增調節閥,用控制閥來調整反應器加堿量。


  現在,反應器的化驗分析由原來一天6個樣改為3個樣,反應器溫度波動范圍變小,加堿量均勻,pH值變化范圍小,反應器和干燥塔的操作平穩率達100%。 
 

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