Reasons for the gradual decline in temperature in the superheating section of the waste heat boiler
Thread Content
What are the reasons for the gradual decline in temperature in the superheating section of the waste heat boiler?
In our factory, it’s mostly the case that catalyst accumulates in the furnace tubes; we open them up for cleaning or wash them with water, and under normal circumstances this will last for a year
The furnace tubes are clogged with catalyst; a ash remover can be installed in the remaining boiler to remove ash regularly.
The change in the properties of the raw materials is the first factor; pipe leakage is also possible
1. Ash accumulation in the furnace tubes; 2. Salt accumulation inside the furnace tubes
What kind of device’s residual tank would have a catalyst in it?
Thank you. It is normally inspected every three years. How effective is the soot remover?
Our unit uses shock wave soot blowers, and the results are excellent
I’m not sure which temperature the original poster is referring to – the flue gas temperature in the overheating section or the steam temperature at the outlet of that section? If it is the steam temperature in the superheated section, it could be due to ash accumulation on the tube walls or scaling inside the tubes. The solution is to carry out regular soot blowing, which can eliminate the effects of ash accumulation on the tube walls and ensure the quality of the boiler water, thereby avoiding the impacts of scaling inside the tubes. It may also be due to a decrease in the temperature of the superheated flue gas. If it’s the temperature of the flue gas in the overheating section, then it means the regeneration temperature is dropping... For other reasons, please refer to other specialized manuals for explanations