| Bag filter has become the most widely used mainstream dust removal equipment because of its advantages of high dust removal efficiency,convenient use,economy,and reliability.With the rapid expansion of industrial scale and improvement of technology,bag filter is developing towards large-scale and automatic development.The internal main structure such as layout of the board,the geometry of the inlet and outlet ducts,and the design of the air distribution device will put forward new requirements.This impact on the performance of the equipment,such as wind uniformity and operating energy consumption,has become a topic that we should study in depth.Among them,domestic and foreign literature on the design and optimization of product air ducts are rare,and design is mostly based on engineering experience.The airbag layout on the bag room side has become a trend in the development of large-scale products,including its most critical air distribution device.Foreign products have already begun to be applied and are not yet mature in the country,and there are also lack of relevant research literature and data.Therefore,this article selects the air distribution device that mainly affects the wind separation performance of the entire equipment,the inlet and outlet air ducts,and the air distribution device that mainly affects the air distribution inside the bag,and uses numerical simulation methods to study the influence of this structure on the wind performance in depth.In order to obtain more series of research models,the group that I participated in has applied reconfigurable technology,digital prototyping technology,computational fluid dynamics(CFD)technology,semi-physical simulation experiment technology,and computer software integration technology to the innovative design of bag filter products through TRIZ,and developed a comprehensive large-scale bag filter digital prototype platform.The example of the innovative product structure of bag filter with airflow distribution device or duct used in this paper is constructed using this platform.Completed the following main tasks:(1)The influence of three factors on the wind separation performance of the bag filter was analyzed by using the CFD technique from the aspects of the velocity field distribution on the underside of the bag filter bag and the amount of air distribution between the bags.The three factors are the permeation rate of the filter bag,the ratio of the height of the inlet pipe,the location of the inlet and outlet ducts.After multi-factor analysis,the influence of various parameters of the inlet air duct on the air flow distribution between bags was obtained.(2)Relevant research and analysis of the airflow distribution device in the innovative product was obtained by using the TRIZ,to explore its impact on the wind separation performance of the baghouse.(3)Based on the TRIZ,Mainly responsible for the construction of reconfigurable and parameterized geometric models using Pro/E 3D design software and GAMBIT models based on FLUENT software in the construction of digital prototyping platform.This laid the foundation for the data model for the smooth integration of the entire platform. |
