The invention belongs to the technical field of
environmental protection and energy efficiency optimization, particularly relates to a
seawater desulfurization energy efficiency optimization and early warning method, and aims at solving the problems that a traditional desulfurization
system is high in
energy consumption, and hidden faults are difficult to early warn. According to the method, a multi-physical-field
coupling dynamic monitoring system is constructed, parameters such as pH, dissolved
oxygen and flow velocity are collected in real time, a transient working condition self-adaptive energy efficiency evaluation model is established, the pump frequency, the
air volume and alkaline agent adding are dynamically adjusted in combination with a
model prediction control strategy, and
energy consumption minimization on the premise that the desulfurization efficiency is larger than or equal to 95% is achieved.
Wavelet packet-principal component fusion analysis is synchronously implemented, degradation characteristics such as filler pressure drop and
aeration uniformity are extracted to construct a
degradation index, a three-level early warning mechanism is triggered, and a maintenance decision is pushed. According to the method, the energy efficiency response speed and the control precision are remarkably improved, the unit
energy consumption is reduced by 12%-18%, the alkaline agent consumption is reduced by 20%, hidden degradation can be recognized 72 hours in advance, and the early warning accuracy gt is achieved; the
false alarm rate is 92%; the non-planned shutdown is reduced by 60%, and the annual energy efficiency stability standard deviation of the
system is 1t; and 4%.