Do all plants strictly follow the start-up and shutdown procedures to heat or cool the heaters?
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As the title says! Is the machine started and stopped strictly in accordance with a temperature increase of ten to fifteen degrees per hour? Our facility has a 70,000-ton MTBE separation unit; due to the poor quality of the equipment, it keeps shutting down and starting up frequently. It takes roughly two hours for the heater to raise the temperature from room temperature to 100 degrees, which is very detrimental to the equipment, right? The device is designed to last for ten years.
:$ That’s what I think; the temperature shouldn’t rise too quickly. Why is this requirement in place? It has to do with the materials used in the heaters, their coefficient of thermal expansion, as well as the coefficient of thermal expansion of the welding materials. . . . . There is a relationship with the stress that arises when the temperature changes. The regulations specify an increase of 15 degrees per hour, while we see an increase of 35 degrees per hour; surely this has an impact. .
Reply to 2# Little Watermelon: I understand the reasoning you mentioned