Problems with the induced draft fan in the 200,000 tons/year methanol production project using coke oven gas
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We have been operating the 200,000 tons per year methanol production plant using coke oven gas for over a month now; fan B is in operation, but there is a lot of water inside fan A. 1. How does water get in? 2. Can it be started with water inside the exhaust fan, and will it overload? 3. What if B shuts down? I hope experts can give some guidance
Could the original poster be more specific about where the exhaust fan is needed?
It’s a heating furnace, right? ? ? ? ?
In the methanol production plant using coke oven gas, there is a heating furnace (box-type), along with a flue gas exhaust fan, right?
In many places, the heating furnaces don’t have exhaust fans; ours doesn’t either. Let’s consider the situation: when B is in operation, the water in A is condensate water, which is normal. A small amount of water is fine. Is there no backwash? If there is too much water, pour it out. If the vehicle is jumped out of, does the system not have interlocks? For example, quickly open the air damper. The key is to see where the wind is blowing
Have you checked the cooling water system of the induced draft fan? Is there any water accumulation in induced draft fan B?
We also produce methanol from coke oven gas, and no water was detected. Is it the water produced by the combustion of hydrogen that condenses?
Recently, the bearing housing of the hydrogen production induced draft fan in our plant has suffered severe water intrusion; generally, these units are used as spares, and the cooling water system is functioning normally. Does anyone who knows about Gewei Haiyou know? Please let me know. Thank you
Regularly drain the water, strengthen the inspection system – there should be no problems
Water is produced by the combustion of gases; could it be that your exhaust temperature is too low? I’m not sure what it is at the moment If there is water present, try not to start the fan to prevent damage to the blades. If the fan trips, the system must shut down via interlock; otherwise, a safety accident can occur due to excessive positive pressure in the furnace.
Water is produced by the combustion of gases; could it be that your exhaust temperature is too low? I’m not sure what it is at the moment If there is water present, try not to start the fan to prevent damage to the blades. If the fan trips, the system must shut down via interlock; otherwise, a safety accident can occur due to excessive positive pressure in the furnace.