涡轮增压式节流器的结构设计与承载性能初探

Structure Design and Bearing Capacity of Turbocharged Throttle Preliminary Study on Performance

针对现有气体静压节流器承载能力无法满足大型精密设备所需承载力的问题,提出了一种可大幅度提高承载力的涡轮增压式主动型气体静压节流原理。在研究中,首先,对涡轮增压式节流原理进行分析以及结构设计;其次,利用FLUENT软件优化设计该节流器主要结构的参数、分析节流器气膜压力分布;最后,和市场主流节流器产品—双U型节流器进行对比仿真实验。结果表明,该节流器具有渐变、稳定的气膜流场,具备替代现有节流器的可行性,仿真试验得到涡轮增压式节流器单位面积承载力约为双U型节流器单位面积承载力的2.3倍,证明了所设计涡轮增压式气体静压节流器具有大承载力的性能,具有广阔的工程实用前景。

Aiming at the problem that the bearing capacity of existing aerostatic restrictors cannot meet the bearing capacity of large-scale precision equipment,this paper proposes a turbocharged active aerostatic restrictor principle which can significantly improve the bearing capacity.Firstly,the principle and the structure design of the turbocharged throttle are analyzed.Secondly,FLUENT software is used to optimize the parameters of the main structure of the throttle and analyze the gas film pressure distribution of the throttle.Finally,a comparative simulation experiment is carried out with the dual U-type throttle,which is the mainstream throttle product in the market.The simulation test shows that the unit area bearing capacity of the turbocharged throttle is about 2.3 times that of the double U-type throttle.It is proved that the turbocharged aerostatic throttle designed in this paper has the performance of large bearing capacity and has broad engineering application prospects.