平衡盤結(jié)構(gòu)參數(shù)對多級泵轉(zhuǎn)子系統(tǒng)動態(tài)平衡規(guī)律的影響
[Abstract]:In view of the problems such as frequent grinding and large leakage of the balancing disk in the operation of multistage centrifugal pump, taking the balancing disk of a pump as an example, according to its structural parameters, combined with the equation of motion of the multi-stage pump balancing disk-rotor system, The dynamic balance law of balancing disk with different structure parameters is simulated by Matlab software. According to the simulation curve, the equilibrium value of the balancing disk is determined by its structural parameters, and the over-impulse is determined by the difference between the initial value of axial clearance and its inherent equilibrium value. According to the change trend of balance value and over impulse, the balance disk is within the scope of its design principle, The inner diameter is 79.0mm, the axial clearance length is 19mm, the radial clearance length is 90mm. The equilibrium value can be reduced by 12mm, the overimpulse by 95mm, the dynamic stabilization time by 47mm and the leakage by 4.2 mm. Therefore, the reasonable design of the structural parameters of the balancing disk can effectively reduce the grinding of the balancing disk, reduce the leakage, and provide a reference for solving this kind of problems.
【作者單位】: 蘭州理工大學(xué)能源與動力工程學(xué)院;
【基金】:甘肅省自然科學(xué)基金(1308RJZA271)
【分類號】:TH311
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