多鞍座卧式蒸压釜强度数值与试验研究

Numerical and Experimental Research of Strength of Horizontal Autoclave with Multi-saddles

近年来,随着工艺参数的大型化和制造工艺的成熟,大型卧式容器在工业当中的应用越来越广泛。若仍采用双鞍座结构,鞍座之间的跨度必然会增大,同时带来相当大的应力,不利于容器的安全使用。此时若采取多鞍座结构,会明显改善筒体的受力情况,因此,多鞍座卧式容器就得到了越来越多的应用。对多鞍座卧式蒸压釜进行了强度关键问题的理论计算、数值模拟和试验测试,由于测试现场中蒸压釜鞍座并未完全焊接上,故对设计蒸压釜(15鞍座蒸压釜)进行了理论计算和数值模拟,对比两者所得结果;然后对试验蒸压釜(4鞍座蒸压釜)进行了试验测试和数值模拟,对比两者所得结果,以此验证有限元法的可行性与准确性。结果表明应用有限元法求解多鞍座卧式蒸压釜是可行且准确的。

In recent years,with the enlargement of process parameters and the maturity of manufacturing processes,the application of large horizontal containers in industries has become more and more wide spread.If two-saddle structure is used for Long horizontal vessel,considerable stresses will exist in the vessel due to inevitable increase of the span between the saddles,which brings unfavorable effect to safe use of the vessel.In this case,if the multi-saddle structure is applied,the loading condition to the cylinder will be significantly improved.Therefore,the multi-saddle has been increasingly used for long horizontal containers.In this paper,theoretical calculations,numerical simulations and experimental tests of key strength issues were carried out for a multi-saddle horizontal autoclave.Theoretical calculation and numerical simulation for the design autoclave with 15 saddles were first performed,and the results obtained were compared.Then experimental tests and numerical simulations for the experimental autoclave with four saddles were carried out,and the results obtained were compared so as to verify the feasibility and accuracy of the finite element method,from which the both have been proved.