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Home >> 新闻资讯 >>公司新闻 >> 烟气在线监测系统取样管路堵塞的处理方法
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烟气在线监测系统取样管路堵塞的处理方法

Time:2020-11-28     Author:北中科技   Read

     对于烟气在线监测系统相信大家还是比较熟悉的,而在下面我们准备为大家介绍烟气在线监测系统取样管路堵塞的处理方法如果你还不知道的话可以来看看。

       

      1、寻找堵塞点:


  利用取样泵在系统中的特性,首先要判断出是在取样泵之前的部件管路堵还是在取样泵之后的部件管路堵。系统取样工作时可将取样泵上的进口接头,让取样泵抽取空气,如果此时发现流量计有流量且流量调节有富裕度,说明取样泵之后的部件管路没有堵塞,对堵塞情况发生在取样泵之前的管路部件;反之如果流量还是为零或很小没有调节富裕度是取样泵之后的管路部件堵塞了,同时也要考虑系统回流针阀是否开的过大,导致样气大部分回流引起流量过小。


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      2、取样泵之前的管路堵塞处理方法:


  可用排除法逐一判断堵塞的部分。系统取样泵工作,可先将取样泵进口管路接上,断开取样泵与防尘过滤器连接管路在防尘过滤器上的接头从,这个接头处抽空气观察流量,如有流量说明这段管路不堵接上接头,松开尘过滤器的进口接头,如果有流量接上该接头,松开储水罐出口接头,依次向前逐一判断检查到哪个点抽空气没有流量了就说明堵在这个点。通常探头滤芯和粉尘过滤芯不定期进行更换,用久后很容易造成堵塞,还有取样管路有时也会由于探头滤芯不更换造成探头内粉尘过多进入取样管而堵塞取样管,可松开探头与取样管的接头让系统进行吹扫取样管路。


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 3、取样泵进口之后的部件及管路有堵塞处理:


  通常情况下发生在制冷器内的双通道冷凝罐内有结冰或接头堵,另外切换阀门只要位置正确不大会发生堵塞情况。系统取样泵工作,请准备一根1米左右Ф6的软管,一端接在取样泵的出口,一端接在流量计的进口(,如果有流量说明是可能堵在冷凝器了,清洗冷凝器中的冷凝罐。如果取样泵的出口接在还是没流量,那是在流量计之后的管路或仪表内部管路堵塞了,将取样泵出气口接的临时管路直接接入仪表进气口用手感觉仪表出气口是否有气排出,逐个逐段判断。如果仪表内部堵了需拆开仪表检查清洗仪表内部管路。


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