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锅炉容量相同的情况下,燃油锅炉的炉膛和煤粉

今天小编接到了一个客户的咨询非常有意思,他询问在锅炉容量相同的情况下,燃油锅炉的炉膛和煤粉炉大全一样吗?。当然不一样了,燃油锅炉的炉膛要比煤粉炉小,因:
Today, Xiao Bian received a customer consultation is very interesting, he asked in the same capacity of the boiler, the fuel boiler furnace and the coal stove all the same?. Of course it is not the same, the fuel boiler furnace is smaller than the pulverized coal stove, because:
燃油锅炉
炉膛容积的大小,在锅炉容量确定后,主要取决于容积热负荷的大小。容积热负荷的大小主要决定于燃料种类。燃料进入炉膛后,需要一定的时间才能燃尽。通常要求燃料在离开炉膛前全部燃尽,显然煤粉燃尽的时间比油长,即燃煤时的火焰比燃油长。为保证锅炉长期安全运行,不但要防止锅炉结渣,而且要使烟气在炉膛出口处的温度比烟气中灰分开始变形的温度低50~100℃,以防止在炉膛出口处和以后的对流受热面结渣。煤在中灰分含量较多,燃煤炉一般控制炉膛出口烟温为1050~1100℃。而燃油炉因油中灰分很少,炉膛没有结渣危险,也不要考虑炉膛出口放渣管的结渣问题,所以,炉膛出口烟温可高些。
The size of the furnace volume, after the boiler capacity is determined, mainly depends on the size of the volume heat load. The size of the volume heat load is mainly determined by the type of fuel. The fuel into the furnace, it takes some time to burn. Usually require the fuel burn all left in the furnace, pulverized coal combustion obviously longer than that of the long oil, coal than fuel flame length. In order to ensure the long-term safe operation of the boiler, not only to prevent slagging in the boiler, and to make the flue gas in the furnace outlet temperature of flue gas ash began to deformation than low temperature of 50~100 DEG C, to prevent convection in the furnace outlet and the heating surface slag. The content of coal in the ash is more, the general control of furnace outlet temperature is 1050~1100. The fuel oil furnace due to the oil in the ash is very small, the furnace is not dangerous, and do not consider the problem of the furnace outlet slag discharge tube, so the furnace outlet temperature can be higher.
由于上述两个原因,燃油炉的容积热负荷比煤粉炉高。煤粉炉容积热负荷约为145~185kw/m3,而燃油炉容积热负荷可达255~350kw/m3,所以在炉膛容量相同的情况下燃油锅炉的炉膛体积较煤粉炉小。
For these two reasons, the volume heat load of the fuel oil furnace is higher than that of the pulverized coal boiler. The volume heat load of the pulverized coal boiler is about 145~185kw/m3, and the fuel oil furnace volume heat load can reach 255~350kw/m3, so the furnace volume is smaller than that of the pulverized coal stove in the same furnace capacity.

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