今天小編接到了一個客戶的咨詢非常有意思，他詢問在鍋爐容量相同的情況下，燃油鍋爐的爐膛和煤粉爐大全一樣嗎？。當然不一樣了，燃油鍋爐的爐膛要比煤粉爐小，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:

爐膛容積的大小，在鍋爐容量確定后，主要取決于容積熱負荷的大小。容積熱負荷的大小主要決定于燃料種類。燃料進入爐膛后，需要一定的時間才能燃盡。通常要求燃料在離開爐膛前全部燃盡，顯然煤粉燃盡的時間比油長，即燃煤時的火焰比燃油長。為保證鍋爐長期安全運行，不但要防止鍋爐結渣，而且要使煙氣在爐膛出口處的溫度比煙氣中灰分開始變形的溫度低50~100℃，以防止在爐膛出口處和以后的對流受熱面結渣。煤在中灰分含量較多，燃煤爐一般控制爐膛出口煙溫為1050~1100℃。而燃油爐因油中灰分很少，爐膛沒有結渣危險，也不要考慮爐膛出口放渣管的結渣問題，所以，爐膛出口煙溫可高些。

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.

由于上述兩個原因，燃油爐的容積熱負荷比煤粉爐高。煤粉爐容積熱負荷約為145~185kw/m3，而燃油爐容積熱負荷可達255~350kw/m3，所以在爐膛容量相同的情況下燃油鍋爐的爐膛體積較煤粉爐小。

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.