Comprehensive optimization method for clean circulating cooling water system based on hierarchical nested algorithm

Abstract

The invention discloses a comprehensive optimization method for a clean circulating cooling water system based on a hierarchical nested algorithm, which comprises the following steps: S1, carrying out mechanistic modeling on equipment in the clean circulating cooling water system, and on the basis, determining decision variables and process constraint conditions of the comprehensive optimization of the clean circulating cooling water system; S2, according to the technological process of the clean circulating cooling water system, determining a superstructure of a pipe network system, establishing a mixed integer nonlinear programming model of the clean circulating cooling water system according to the obtained superstructure, the decision variables and the process constraint conditions, and taking the mixed integer nonlinear programming model as a combinatorial of an inner nonlinear programming model and an outer combinatorial optimization model; and S3, processing the optimization of selected variables of an outer mixed integer nonlinear programming model by using a tabu search algorithm so as to generate feasible selected variables satisfying selected variable constraints, and after the feasible selected variables are fixed, carrying out optimization solution on an inner mixed integer nonlinear programming model by using the information of the feasible selected variables.

Description

technical field [0001] The invention relates to the field of industrial cooling water, in particular to a method for comprehensive optimization of a net circulation cooling water system based on a layered nesting algorithm. Background technique [0002] At present, the world's energy resources are increasingly depleted, and available water is increasingly scarce. Water conservation and energy conservation have become an issue that the global industry has paid more and more attention to. The vast majority of industrial cooling water systems now use circulating cooling water systems, of which the most widely used is the net circulating cooling water system. However, in the production practice of the net circulating cooling water system, there are many unreasonable places from the system design to the operation and production, resulting in a lot of waste: in the system design, the equipment does not match the production requirements, resulting in unnecessary waste of investment...

AI Technical Summary

Problems solved by technology

However, in the production practice of the net circulating cooling water system, there are many unreasonable places from the system design to the operation and production, resulting in a lot of waste: in the system design, the equipment does not match the production requirements, resulting in unnecessary waste of investment; In terms of equipment operation, the equipment operation parameters are set unreasonably, resulting in a large amount of power waste

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