Numerical Analysis Of The Plate Structure Parameters Influence On The Performance Of Plate Heat Exchanger

As a high-performance heat transfer equipment,plate heat exchangers are widely used in various industries involved in heat transfer.Because of its unique structure,it has the advantages of small footprint and high heat transfer coefficient compared with shell and tube heat exchangers.Plates have become the main research objects as one of the key components of plate heat exchangers.How to strike a balance between increasing the heat transfer coefficient and reducing the fluid resistance,that is,improving the comprehensive performance of plate heat exchangers is the main research direction at present.In addition,as the main component of the plate heat exchanger,the plate needs to rely on stamping forming,and manufacturers usually have to take into account the stamping quality of the plate when designing the plate.Therefore,according to different design requirements,it is necessary to analyze the plate parameters as a whole.In view of the above problems,this paper comprehensively used heat transfer,computational fluid dynamics and finite element analysis techniques to simulate and study the structural parameters of chevron corrugated plate heat exchanger plates.The main research work is as follows:1.A plate heat exchanger fluid simulation system was completed.The threedimensional model was established by the Y5 f plate parameters given by the manufacturer,and the finite element calculation was carried out,and the heat transfer characteristics and resistance characteristics of the flow field were obtained2.The influence of the structural parameters of the plate on the fluid under different working conditions was analyzed,the laws of heat transfer and resistance performance of each structural parameter and the plate heat exchanger were summarized,the optimal parameter range was obtained,and the performance of the optimized plate was verified to be greatly improved under different working conditions compared with the original plate,which provided a theoretical reference for the design and production of the plate heat exchanger.3.Combined with the stamping performance of the plate,and guided by improving the yield of the product,the different focuses of the design lead to the difference in the influence of the plate structure parameters on the results,which has guiding significance for the enterprise to develop the plate.4.By observing the distribution characteristics of the flow field between the plates of the traditional plate heat exchanger,the defects in the structure of the traditional plate guide zone were analyzed,and a new type of six-hole plate heat exchanger plate was designed,which strictly meets the symmetry of the flow field,and the simulation and numerical analysis showed that it can significantly enhance the uniformity of the flow field distribution and reduce the fluid resistance.This plate has development value and has been recognized by enterprises.