Research And Development Of RTO Equipment Digital Design System

With the increasing strictness of Chinese environmental protection policies,the demand of regenerative thermal oxidizer(RTO)equipment has increased in the market.Customization has become the mainstream demand for RTO equipment today.But there still exists some problems in the research and development,such as the high product redesign rate,the lack of inheritance in engineering analysis and the cumbersome sheet metal unfolding and nesting.In order to shorten the cycle in the product development and promote the digital transformation in the enterprises,digital design system for RTO equipment is developed.According to the requirements in the system,this article conducts in-depth research on parameterized design and automated simulation analysis methods and key technologies.And it is also focused on the analysis that combines with the minimum level and genetic algorithm to solve the optimization problem of rectangular piece nesting.The main tasks have been completed include:(1)According to the pain points of enterprise product design,the functional requirements of the system platform are clearly defined,and the modular design concept is adopted to build the overall design framework of the system.Visual Studio and Matlab are chosen as system development tools,and VB.NET is used as the programming language to complete the development of the interactive interface and module functions of the system.(2)To address the high repetition design rate of the product,this article has developed a parametric design module.The secondary development technology of SolidWorks is utilized,and the parameterized design concept is used to realize the parameterized modeling of serialized parts,engineering drawing conversion,and automatic assembly function.Based on this,relevant databases and model libraries have been bulit by Access.(3)To address the lack of inheritance of engineering analysis experience,the engineering analysis module is developed.The secondary development technology of ANSYS and Fluent are studied,and the APDL and TUI commands are selected as the development tools.Using batch processing and process call methods,the static analysis of serialized support frames and the internal flow field analysis of the furnace body under different opening degrees of the thermal bypass valve are automated.(4)To address the cumbersome sheet metal unfolding and nesting,the unfolding and nesting module is developed.Typical mathematical models for sheet metal unfolding of pipe-like parts are studied,parameter-driven equations are constructed,and automatic unfolding of typical pipe-like sheet metal parts is realized.The sheet metal nesting of rectangular pieces are deeply studied,and multiple nesting heuristic algorithms are analyzed.The minimum level algorithm is selected as the nesting strategy algorithm,and the genetic algorithm is selected as the nesting optimization algorithm to achieve automatic nesting of rectangular pieces,providing a basis for sheet metal cutting.The RTO digital design system developed in this article can shorten the development cycle of regenerative thermal oxidizer,which can increase the market competitiveness and has the important theoretical significance and engineering value for improving the digital transformation for the enterprises.