How to utilize the waste heat from flue gas in heat transfer oil furnaces
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Our company currently has a heat transfer oil furnace, and the environmental protection authorities require the installation of desulfurization and dust removal systems. The temperature of the flue gas remains as high as 220 degrees even after passing through the air preheater; such a high temperature makes it impossible for the gas to enter the dust removal equipment directly. What are some effective ways to reduce the temperature of the flue gas? The temperature resistance of the cloth bag is up to 150 degrees.
Recycle waste heat, make comprehensive use of thermal energy, and see if it’s possible to use the heat recovered from wastewater for local heating.
Take a look at your flue gas volume; if it is high, considering waste heat recovery might be a good option. The flue gas volume is too low; it can only be used for cooling purposes to ensure the proper operation of the bag filter. A small heat exchanger can be used to cool the water through circulating water.
A heat pipe air preheater can be added to preheat the air entering the heat transfer oil furnace, thereby saving coal consumption. That is what is commonly referred to as GGH
1. Inspect and clean the air preheater to check whether soot has accumulated and is affecting heat transfer; cleaning it will yield positive results. 2. If that still doesn’t work, increase the area of the air preheater (the heat pipe effect mentioned above can help); don’t forget to consider the economic aspects as well. 3. A heat-resistant cloth bag should be able to handle 180 degrees