高气密耐磨关风器与低温真空干燥筒仓  

High-airtight Wearable Airlock and Low-Temperature Vacuum Drying Chamber

作　　者：何翔 付聚霞 王军 

机构地区：[1]郑州飞机工业公司,河南郑州450001 [2]河南金谷实业发展有限公司,河南南阳450053 [3]郑州飞航真空干燥技术公司,河南郑州450001

出　　处：《干燥技术与设备》2007年第1期39-43,46,共6页

摘　　要：关风器是气力输送、真空输送系统中不可或缺的设备,有旋转阀、星型给排料机、密闭旋转叶片给排料机等多种名称。减小关风器漏气量、延长使用寿命是本产品的难点;减小叶轮工作状态各封闭腔体压力差,选用复合耐磨自润滑材料是达到关风器漏气量小、使用寿命长的有效途径。真空干燥筒仓有多种结构,但适合做大产量连续干燥的不多。研制一种工作状态设备外壳静止、仓内单位容积换热面积大的筒仓,有利于降低设备制造总成本。Aidock is a crucial part in a pneumatic conveying or vacuum conveying system. It＇s also named rotary valve, star like feeder, airtight rotary vane feeder, etc. Efficient approaches to reduce the air leakage and prolong the life-span of an airlock include reducing the pressure difference of every close cavities in the impeller at working condition and choosing composite, wearable and self-lubricated material for the airlock. There are many kinds of structures in vacuum drying chamber, but few for continuous drying chamber with a large production capability, Development of a reasonable drying chamber structure with a high ratio of heat transfer rate to unite chamber volume at working condition is propitious to depress the total cost of dryer.

关 键 词：关风器 压差漏气量 补偿间隙 耐磨自润滑 高换热比 连续干燥 

分 类 号：TB753.1[一般工业技术—真空技术]