Temperature Rise Deformation Characteristics And Experimental Study Of Mechanical Seal For Kettle

Reactors occupy an important position in the chemical industry and are at the heart of the entire chemical process.The mechanical seal device on the rotating shaft is the key part with the highest failure frequency in the reactor and the entire process,and the integrative mechanical seal that is currently used more often has the problem of time-consuming and laborious assembly and disassembly in the process of maintenance.Compared with traditional mechanical seals,split mechanical seals are easy to install and disassemble and economical.In this paper,the temperature rise deformation of the sealing end face is systematically and deeply studied,and the bench test is carried out to verify it.According to the real working conditions of the seal,the geometric model of the split mechanical seal was established,and the limit conditions for solid mechanics and restriction of solid heat transfer conditions.The changes of temperature,stress and deformation of the sealing end face were obtained,and the test results proved the accuracy of the model,which can provide a basis for subsequent sealing performance analysis and structural optimization.The end face temperature and deformation trend and law of the split mechanical seal structure for kettle were analyzed,and the effects of speed,pressure,temperature,parting surface opening angle,end face cone angle,parting surface preload,end face width,end face specific pressure,spring specific pressure and material properties on the temperature and deformation of the sealing end face were discussed.The analysis results show that the speed and cavity pressure have the greatest influence on the temperature and deformation of the end face,and when M130 K is selected for the dynamic and static ring material,the split mechanical seal for the kettle can have better sealing performance.Taking the maximum deformation of the end face,the maximum temperature of the end face,friction power consumption,wear rate and leakage amount as the optimization goals,the response surface method is used to optimize the structural parameters of the sealing ring structure,and the final structure of the mechanical seal is obtained,and the reliability of the optimized structure is verified,which can effectively enhance the sealing performance.The prototype and test device of split mechanical seal for kettle were designed and developed,various PV values were discussed theoretically,the significance and use occasions of PV values were clarified,the limit PV values of different groups of split mechanical seal rings under different groups of materials were analyzed,and effective methods and measures were proposed to improve PV values.The temperature rise and deformation of the dynamic and static ring material are minimal under M130 K,and the results show that the temperature rise and deformation of the dynamic and static ring material are the smallest under M130 K,and the calculation results of the test and the value are compared to prove the accuracy of the simulation data.Through the research of this paper,it can have a certain guiding role in the design of split mechanical seals for kettles,provide a basis and reference for the in-depth study of the performance of split mechanical seals for kettles,and also provide the necessary theoretical basis for the application and promotion of split mechanical seal technology for kettles.