Automatic type-selection method for industrial agitators

Abstract

The invention relates to an automatic type-selection method for industrial agitators. The automatic type-selection method comprises the following steps: simulating flow fields of all types of agitators working in an agitating tank through CFD (computational fluid dynamics) under the same working condition, performing flow similarity analysis, so as to obtain agitation performance indexes of the agitators, and building a comparison matrix between a schematic layer and a criterion layer on the basis of a special scaling method; performing weighting processing on influence factors of the agitation performances of all types of agitators according to an agitation demand, and automatically building a comparison matrix between the criterion layer and a target layer; obtaining comprehensive weights according to the automatically built comparison matrix between the schematic layer and the criterion layer as well as the automatically built comparison matrix between the criterion layer and the target layer, and sequencing comprehensive weight values to select an optimal agitator, so as to realize automatic type selection of the agitators. The screening method is simple; the type selection difficulty is reduced, the dependency to the experience and professional knowledge of a type selection designer is lowered; the designer can be assisted in quickly completing the type selection work; the precision and the generality of type selection for the industrial agitators through an analytic hierarchy process are improved.

Description

technical field [0001] The invention belongs to the technical field of industrial stirring equipment research, and in particular relates to a method for automatic type selection of industrial agitators. Background technique [0002] The type and mixing characteristics of the agitator determine the mixing effect of the system to a large extent. Selecting a suitable agitator is a very critical step in the design process of mixing equipment. The type of agitator has a great influence on the mixing effect and the manufacturing and operating costs of the mixing equipment. big impact. In 1991, Tatterson et al. found that the output value of the chemical industry in the past half year was related to the stirring tank. The loss due to the unreasonable design and selection of the agitator was as high as tens of billions of dollars. For a long time, the design parameters of the agitator were various, complicated and inconsistent, and the design process lacked systematic maturity. the...

AI Technical Summary

Problems solved by technology

The selection process is quite cumbersome, and there are still high requirements for professional knowledge and AHP knowledge theory

Gao Kai of Northwest University and others used the principle of AHP to design the industrial agitator selection software, but only simplified the calculation process of the analytic hierarchy process in the selection process, and needed to rely on the selection personnel to find the relevant parameters of the agitator and apply the analytic hierarchy process To establish a comparison matrix, failed to achieve automatic selection

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