The utility model provides an anti leakage roots blower with a reflux device. Includes a drive shaft, a driven shaft, a gear box, a casing, a rotor, a left wallboard, a right wallboard, labyrinth seal parts and bearing, casing is connected with a wind inlet pipe and outlet pipe, air chamber and a reflux hole is provided with left and right panels on both sides of the casing between the labyrinth shaft hole in the installation the shaft and the driven shaft of the sealing member and the bearing seat, and the air chamber through the reflux hole through the reflux pipe is communicated with the air inlet. The anti leakage roots blower with a reflux device has the advantages of good sealing effect, simple structure, convenient disassembly and assembly, no leakage of the conveying gas, and increased safety in use.
【技术实现步骤摘要】
【技术保护点】
１．一种带回流装置的防泄漏罗茨鼓风机，包括主动轴（１）、从动轴（２）、齿轮箱（３）、左墙板（４）、机壳（５）、转子（６）、右墙板（７）、迷宫式密封部件（８）和轴承座（９），机壳（５）装连有进风管（５－１）和出风管（５－２），其特征在于：所述机壳（５）两侧的左、右墙板（４、７）上在安装主动轴（１）、从动轴（２）的轴孔中的迷宫式密封部件（８）与轴承座（９）之间设有透气室（１０）和回流孔（１１），且透气室（１０）通过回流孔（１１）经回流管道（１２）与进风管（５－１）相通。
【技术特征摘要】
【专利技术属性】
技术研发人员：巢伯新，
申请(专利权)人：常州市风机制造有限公司，
类型：实用新型
国别省市：32
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