What potential hazards arise from heat pipe corrosion in waste heat boilers?
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For the flue-type waste heat boiler, due to insufficient funding, Q235 carbon steel was used in the design, without taking into account the issue of corrosion by HF acid. The pressure of the steam is 0.6 Mpa, with a steam output of around 1 ton per hour. The temperature at the high-temperature end is 410 degrees, while it is 210 degrees at the low-temperature end. The current situation is that the dust removal efficiency is poor, and the spiral finned tubes in the waste heat boiler are likely to be heavily covered with dust. What safety hazards might arise under such circumstances?
What other potential problems could there be? Dust accumulation, which leads to a decrease in gas production. Your gas output is a bit low
When the temperature drops from over 400 degrees to 200 degrees, the gas flow rate becomes much lower; corrosion may not necessarily occur. If dust accumulation is severe, apply soot blowing paint
Yes, it was designed to be 2 tons, but that target wasn’t reached; presumably the amount of flue gas was low
I’ll be relieved if there are no obvious problems
The standard dry state should be 7000 Am3/h
Severe dust accumulation has two consequences: first, the thermal resistance increases, reducing heat exchange efficiency and leading to a significant drop in steam production. II. The resistance of the equipment increases, leading to higher power consumption by the fan, or the fan is no longer capable of meeting the requirements. It is recommended to take dust removal measures: rinse regularly with a high-pressure water gun. Use acoustic soot-blowing devices, etc
I’m not afraid of dust; what I fear is having dust along with dew points: 18651652538