Attention should be paid to details in the equipment design to avoid unnecessary corrosion-related losses.
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During design reviews, insufficient attention is often paid to the details of certain equipment structures. It is precisely in these areas that the risk of equipment corrosion arises, which can severely affect the normal operation of the equipment. The diagram below shows the structure of a heating furnace and its roof in a chemical plant; it is this structure that allows water to accumulate when it rains, which quickly corrodes the roof and allows rainwater to enter the heating furnace. When rainwater enters a furnace that is in operation, the consequences are predictable. Through this incident, we must pay attention to the unreasonable design of equipment, especially those designs that are prone to cause corrosion of the equipment, as these require our special attention.
The heating furnace in our atmospheric and vacuum distillation unit also exhibits this phenomenon, so I had to build a rain shelter over it using colored steel sheets.
I hope Mr. Wang will share more relevant knowledge and pictures with everyone, so as to help them avoid taking detours!