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石家莊煉化:降低裝車誤差提升企業信譽

中國石化新聞網訊(支玉銘)經過持續不斷的優化改造,石家莊煉化大鶴管定量裝車系統誤差由0.26%下降至0.1%,不僅達到行業領先水平,而且2013年度未發生一起索賠事件,受到客戶的好評,為企業贏得了良好的聲譽。

  作為石化系統內第一家用于貿易交接的大鶴管火車定量裝車系統,自2004年投用以來,石煉堅持定量裝車貿易出廠,但與人工檢尺計量比,計量不穩定,平均系統誤差達到0.26%,始終伴隨著計量異議和糾紛。

  針對這種情況,石煉積極開展技術攻關,查找具體原因,經過分析研究,認為流量計安裝位置不當產生含氣或空管,鶴管移動、閥門開關震動影響流量計穩定運行、裝車泵、裝車閥啟動順序不當造成流量不穩定等因素嚴重影響流量計的穩定性。針對存在的問題,石煉率先在汽油裝車鶴位進行了大膽嘗試,將流量計從裝車站臺最高點下移至地面安裝,并采取其他有效措施,克服不利因素。經過一年多運行,系統計量穩定性、重復性取得預期效果,2013年4月石煉進一步加大投入力度,將石腦油裝車鶴位進行了改造,火車定量裝車系統誤差得到更有效的控制。同時石煉通過優化裝車工藝流程,有效避免了首車出現的大誤差現象。

  在利用軌道衡校準火車裝車系統的基礎上,石煉還探索利用標準流量計組成的移動校準裝置,進行流量計在線動態校準實驗,最大限度的提高了裝車準確度。

  伴隨著一系列優化措施的實施,石煉大鶴管裝車系統計量準確度高、裝載率高和密閉裝車油氣回收、清潔裝車的優勢日益凸顯,帶來了顯著的社會效益和經濟效益。


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