直驱式液压系统在轴流风机静叶调节中的应用研究

轴流风机是一种提供压缩气体的透平机械设备，其中静叶调节机构是整个调节系统的关键。以轴流风机静叶调节电液伺服系统为研究对象，针对传统液压伺服系统易受油质污染、故障率高、能量转化效率过低的缺点，设计了以伺服电机带动定量泵作为液压动力源的直驱式容积控制液压系统，对此系统的工作原理做了研究，并对液压系统进行了仿真。结果表明：新的系统更加节能，结构更加紧凑，整机功率更小，控制上更为自动化与智能化。

Application of DDVC hydraulic system in axial flow fan stator blade adjustment

The axial flow fan is a kind of turbomachinery equipment to provide compressed gas and the stator blade adjusting mechanism is the key to the whole system. Taking the stator blade adjustment electro-hydraulic servo system as the research object,the traditional hydraulic servo system is vulnerable to oil pollution,high fail-ure rate and low energy conversion efficiency. To solve the above-mentioned problems,the Direct drive volume control hydraulic system for stator blade adjustment is designed,the hydraulic power source of the system is com-posed of servo motor and bidirectional quantitative pump. The working principle of this system is analyzed,the simulation model of hydraulic system is built and solved. The results show that the new system has higher energy efficiency,the structure is more compact,the machine power is smaller and the control is more automatic and in-telligent as compared to the traditional one.