Treatment for increased resistance in the gas generation heat exchanger
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Our company used Tianjin Huaneng heat exchangers in front of the gas generation and gas washing towers. These days, we have noticed that the gas tank level is continuously dropping. After checking, it was found that the resistance of these heat exchangers is as high as 140 mmHg. I would like to ask my colleagues how we can address this issue without shutting down the equipment Urgent! For now, we will first drain the water from the lower soft-water heat exchange section to raise the temperature, and then use a stick to strike the outer cylinder in order to shake off the coal ash adhered to the tower walls. I wonder if this will work? Any other clever ideas? Please advise, thanks!
In my opinion, it is necessary to stop the vehicle and deal with it. In such heat exchangers, dust accumulation usually occurs on the fins of the heat pipes; there is little dust accumulation on the tower walls, so hitting the cylinder with a stick is likely to be ineffective. From the perspective of protecting the equipment, it is necessary to determine the cause of dust accumulation and shut down the system as soon as possible. One of these heat exchange units we used developed dust accumulation after a short period of use (due to leaks at the connection points); no action was taken at the time. Much later, upon disassembly, it was found that most of the connections between the heat tubes and the inner cylinder had been corroded and broken, rendering the inner tank unusable.