Heating furnace
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Dear experts in the marine field, what is the relationship and principle between the wall temperature of a heating furnace and its negative pressure inside the furnace?
You can take a look at the pinned post in this version; there’s an option to request free connections, or you can search on Baidu for “Daxueshi””
That’s a really professional question. Indicates that the question cannot be answered
I suggest you find a manual for the heating furnace to study it*.
I mean, is there a relationship between the wall temperature and the negative pressure in the furnace?
The negative pressure at various points in the flue maintains a certain pattern of variation with the load. When slagging, ash accumulation, or local blockages occur on certain sections of the heating surfaces, the cross-sectional area through which the flue gas flows decreases, resulting in an increase in the flow velocity of the flue gas and a rise in resistance. As a consequence, the pressure difference between the inlet and outlet, as well as the negative pressure at the outlet, increase accordingly. By monitoring the negative pressure at various points in the flue, as well as changes in flue gas temperature, it is possible to detect promptly any issues such as ash accumulation, blockages, leaks on the heating surfaces, or incidents of secondary combustion.