新型变量离心风机变量机构设计  

Design on Variable Displacement Mechanism of New-type Variable Centrifugal Fan

作　　者：刘靖琪 

机构地区：[1]中国煤炭科工集团重庆研究院有限公司,重庆400037

出　　处：《煤矿机械》2015年第3期28-30,共3页Coal Mine Machinery

摘　　要：针对现有离心式风机因定量供风导致的通风系统风量无法与矿井实际需求风量相匹配的技术不足,提出了一种新型的变量离心风机的设计方案。设计采用液压为动力,风机叶片角度可变化的方法,使得风机叶片沿风机轴向的投影宽度发生变化,进而实现风机通风量的改变。工业生产中,风机可根据井下开采对风量需求调整通风量,实现与井下实际风量需求相匹配的目的。This study aims at the insufficient technical background of centrifugal fan which cannot match with the mine air volume actual demand due to the quantitative-type air supply. A designing scheme of new-type variable centrifugal fan was proposed. The blade incidence was changed by hydraulic drive, which made the projection width of fan blade changing with the blade incidence further. And the fan ventilation quantity was changed with the variable blade incidence. In the industrial production, the ventilation quantity was changed with underground mining demand to match with the actual air volume requirements.

关 键 词：变量 叶片倾角 液压驱动 离心风机 设计 

分 类 号：TH432[机械工程—机械制造及自动化]