Analysis of noise elimination and vibration damping in high temperature and pressure superheat steam trap
LI Shu-xun1,2; ZHAO Zi-qin 1; ZHANG Yun-long3
. College of Petrochemical Technology, Lanzhou Univ. of Tech. , Lanzhou 730050，China； 2. Engineering Technology Research Center for Machinery Industrial Pump and Special valve , Lanzhou 730050，China；3. Gansu Hongfeng Machinery Co,.Ltd, Pingliang 744000, China
Abstract：Strong vibration and high noise were generated in high temperature and pressure superheat steam trap of domestic company. Numerical simulation with finite element method was used to analyze the unstationary characteristic of inner 2D field for the steam trap. Based on the two methods of time-average flow analysis and large eddy simulation(LES),it was found the main factors of vibration and noise in steam trap. According to the characteristic of the frequency spectrum of the noise signal, mechanism with the high acoustic level and principle of throttle step-down ,throttle injection muffler of low vibration and noise steam trap was designed, and the spec-trum analysis was implemented. The results of numerical analysis match with the theoretical analysis ,which pro-vides the reliable basis for the noise elimination vibration damping and capability choiceness.
李树勋;;赵子琴;张云龙. 高温高压过热蒸汽疏水阀消声减振研究 [J]. , 2011, 30(10): 116-121.
LI Shu-xun;ZHAO Zi-qin;ZHANG Yun-long. Analysis of noise elimination and vibration damping in high temperature and pressure superheat steam trap . , 2011, 30(10): 116-121.
2011, Vol. 30 
