Automatic control algorithm for feeding vitriol in tap water by coagulation

Abstract

The invention discloses an automatic control algorithm for carrying out feed-forward control based on an artificial neural network and feeding vitriol in tap water by coagulation on the basis of fuzzy feedback control, comprising the following steps of: learning the process parameters of vitriol-feeding control by the artificial neural network, identifying the internal corresponding relationships in the system parameters, thus predicting the control value of the detection source water parameters of a core; subsequently correcting the prediction value by a method of fuzzy control feedback; and finally obtaining a vitriol-feeding control quantity meeting the requirement to control the operation of a metering pump, thus completing the full process of vitriol-feeding control. The algorithm can ensure the safety production and stable operation of water industries under the condition of variable source water references and achieves the objects of saving energy, reducing consumption, downsizing staffs and improving efficiency.

Description

technical field [0001] The invention belongs to the application of modern information technology in the automatic control algorithm of alum injection production in a waterworks, and specifically relates to a control algorithm for coagulation alum injection in tap water combined with a neural network-based feedforward algorithm and a fuzzy control-based feedback algorithm. Background technique [0002] Tap water coagulation and alum injection process is one of the key and core processes of tap water production process. The function of this process is to reduce the turbidity of the pre-filtration water to a controllable range through the coagulation reaction with alum. The pre-filtered water is filtered through the filter tank to make the factory water reach the turbidity required by the national standard. Therefore, the control effect of this production process is related to the safety of urban water supply. Adding alum to tap water is a complex industrial production process...

AI Technical Summary

Problems solved by technology

When the turbidity of the factory water is controlled at 3 degrees, it is relatively easy to achieve by manual operation, but it is required to control the turbidity of the factory water to 0.5 degrees, which greatly increases the difficulty

Manual operation is required from time to time. The biggest problem in manual control at present is: in order to prevent the water turbidity from exceeding the standard, add as much alum as possible; and when the conditions change, it is impossible to manually adjust the amount of alum input at all times, and the production consumption cannot be reduced; In the face of emergencies, if you are not careful, it is easy to produce production accidents and endanger the safety of drinking water

Therefore, this important production process is completely completed by manpower, which itself is a safety hazard

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