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分析儀

在線式氫氣分析儀的主要知識

發布日期:2022-10-09 點擊率:35

  在線式氫氣分析儀CHA,在美國UOP公司長年應用。利用此儀器,煉油廠、石化、電廠可以連續和地監測氣體中的氫氣純度。采用*的電化學傳感器,根據氫氣純度連續輸出測量信號。當氫氣濃度發生改變時,該產品通過實時控制單元、報警器和閉鎖機械裝置快速響應,從而實現被監測設備運行可靠和安全的目的。
  
  原理與結構:CHA傳感器外層由具有質導特性的聚合物膜構成,在兩邊形成兩個電極,一個電極接觸樣氣,另一個接觸的是已知氫氣濃度的參考氣。當氫分子分裂后,質子從氫氣分壓較穿過質子導通膜擴散到氫氣分壓較低的一端。由于電子不能導通,就會在傳感器兩邊產生電荷不平衡。測量兩個電極之間的電壓,就可測得樣氣的氫氣濃度。
  
  應用:氫氣含量監測無論在煉油、石化、電廠的反應物、成品、過程性能監測、還是冷卻都至關重要。
  
  催化重整、異構、聚烯烴生產、氫氣生產、氫冷發電機、氫化處理。

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