(Basic knowledge) What is the furnace differential pressure of a circulating fluidized bed boiler?
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What is the furnace differential pressure of a circulating fluidized bed boiler?
Differential pressure in the circulating fluidized bed furnace: The pressure at the top of the dense phase zone and the pressure at the furnace outlet are connected to a differential pressure gauge, which is used as a parameter for monitoring the amount of material circulating in the boiler. The level of this differential pressure directly indicates the concentration of the ash circulating within the furnace.
The furnace differential pressure is the pressure in the dense phase region minus the pressure at the furnace outlet; it primarily reflects the percentage of fine ash present within the furnace
The furnace differential pressure is the pressure in the dense phase region minus the pressure at the furnace outlet; it reflects the percentage of fine ash present in the furnace, in other words, it indicates the effectiveness of the separator in separating the ash. Coal with a high ash content results in more backflow, leading to a higher furnace differential pressure, while coal with low ash content results in less backflow and thus a lower furnace differential pressure. This value is also influenced by factors such as the fineness of the coal