What are the hazards associated with a economizer outlet temperature of 305°C and a boiler inlet pressure of 3.56 MPa?
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Dear experts, for a boiler in a sulfuric acid plant: when operating at low load, the temperature at the exit of the economizer is 305°C and the inlet pressure of the boiler is 3.56 MPa. What are the potential hazards associated with this? Thank you!
Water at 305°C enters the drum and boils directly
Hehe, I’m a bit confused. Are you referring to the water outlet of the economizer? At over 300 degrees, it’s well above the boiling point at that pressure; the water should vaporize, and water hammer could also occur.
The economizer will start leaking over time and reaches the end of its useful life quickly
At this state, it has already vaporized in the pipeline, and superheated steam must have been formed, right?