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About RTOs (Regenerative Thermal Oxidizers)
Summary:
An RTO burns very lean waste gases without using much fuel. Operating temperature isabout the same as a normal thermal oxidizer (say 1600oF), but the hot flue gas passesthrough a heat exchange module before reaching the stack.
At least 2 of these modules are used – one is always absorbing heat from the flue gas andone is always shedding heat into the waste gas. The modules are insulated boxes full ofheat exchange media – usually ceramic packing. When a box has absorbed all the heat itcan, it is taken offline and waste gas is sent through it backwards until it is cool again.
Once cooled, it is taken offline and hot flue gas is again sent through it. Two boxes are needed so the flue gas always has a path to the exhaust stack – each box switches from heating to cooling every 5 minutes, or so. Specialized “airflow switching valves”, set on a timer, are used to make the flow changes.

关于RTO（再生式热氧化器）

摘要：
RTO燃烧非常稀薄的废气，不使用太多燃料。工作温度与普通热氧化器大致相同（比如1600华氏度），但热烟气在到达烟囱之前会通过热交换模块。
至少使用了其中两个模块——一个始终从烟气中吸收热量，另一个始终将热量释放到废气中。这些模块是装满热交换介质的隔热箱，通常是陶瓷填料。当一个盒子吸收了它能吸收的所有热量后，它就会离线，废气会被反向输送，直到它再次冷却。
一旦冷却，它就会离线，热烟气再次通过它。需要两个盒子，这样烟气总是有一条通往排气筒的路径——每个盒子大约每5分钟从加热切换到冷却。使用设置在计时器上的专用“气流切换阀”来改变流量。

下载地址： About RTOs Banks Engineering 10-8-2007.pdf ( 大小691.62 KB, 下载9次, 金币 -6 )

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