A kind of online self-adaptive control system and method of thickening tower

Abstract

The invention discloses an online self-adaptive control system and method for a concentration tower. The control system includes a concentration tower body, a data preprocessing module, a chlorine root soft measurement module and an adaptive control module. The data preprocessing module includes a main body for collecting the concentration tower. The acquisition unit of the operating parameters and the processing unit for preprocessing the operating parameters, the chlorine root soft measurement module establishes a chlorine root soft measurement model and calculates the chlorine root soft measurement value according to the preprocessing data, and the adaptive control module adopts the adaptive control algorithm. Combining the preprocessing data, chlorine root soft measurement value and preset chlorine root target value to obtain the command output, the variable frequency booster fan adjusts the frequency of the variable frequency booster fan according to the command output; through the establishment of the chlorine root soft measurement model, online access to chlorine root soft The measured value is applied, and the command output of the adaptive control module is used to guide the frequency adjustment of the variable frequency booster fan, so that the concentration tower chlorine root can maintain a relatively stable operating range.

Description

technical field [0001] The invention belongs to the technical field of concentration tower control systems, in particular to an online self-adaptive control system and method of a concentration tower. Background technique [0002] In the existing zero-discharge system of desulfurization wastewater, the chlorine radical of the concentration tower needs to be controlled within a certain range to ensure the safe and stable operation of the concentration tower. In the actual operation process, with the change of operating conditions, the chlorine radical of the concentration tower also changes in real time. If the chlorine root of the concentration tower is too high, it will affect the safety of the operation of the concentration column. The way of sampling laboratory tests increases the instability of the operation of the concentration column. Therefore, it is of great significance to establish a concentration tower that can obtain chlorine data according to the operating para...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an online self-adaptive control system and method for the concentration tower, so as to solve the problem that the existing concentration tower cannot realize the online measurement of chlorine radicals, and can only take regular sampling for laboratory testing, which increases the instability of the operation of the concentration tower The many technical effects that can be produced by the preferred technical solutions in the many technical solutions provided by the present invention are detailed below.

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