How to maintain a stable feed rate

2010-04-10View Original

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The current situation of our atmospheric and vacuum distillation unit is that the feed volume to the heating furnace is unstable, which results in large fluctuations in the temperature at the outlet of the heating furnace. The flash bottom pump is controlled using frequency conversion to keep this temperature constant, while the liquid level in the flash tower remains stable. The feed volumes to the atmospheric heating furnace are measured by orifice flow meters; under such conditions, both feed volumes experience fluctuations simultaneously (either rising or falling at the same time), leading to fluctuations in the outlet temperature and thus affecting the stability of the entire system. Do any of you have any good methods to maintain stable feed volumes?

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How to maintain a stable feed rate

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