When the water seal of the original online analytical instrument works , the sample gas mixes up , and carries dust and liquid , leading to the corrosion of the online instrument and affects its indication , so the analytical results are inaccurate or failures occur 摘要原在线分析仪表的水封工作时，存在样气串气、带尘、带液现象，造成在线分析仪器的腐蚀并影响仪表指示，致使分析结果不准确或出现故障。
