激光在线分析系统在煤气氧含量检测中的应用

摘要

利用LGA-4130分析仪对电捕焦油器后煤气中的氧含量进行在线检测，并通过DCS控制系统设置含氧量的上限值对电捕焦油器实行连锁停机，确保电捕焦油器连续安全运行。对该系统进行分析后，在肯定其技术优点的同时指出其缺陷，并提出了改进建议。%Oxygen analyzer LGA-4130 is used for on-line measurement of oxygen content in gas after electro-static tar precipitator ( ETP ) and for interlock shutdown of the ETP in case of reaching the HH limit of the oxygen value preset on DCS aiming at a safe and stable running of the ETP .The ad-vantages and disadvantages of this analyzing system are studied in this paper ,suggestions for improve-ment are also given .