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gsd.net.cn LRB 低压型三叶罗茨鼓风机 LRB low pressure three-lobe roots blower LRB GREEN SAFE DEVELOPMENT

01 风量和压力范围大. 口径:50mm-300mm (2 -12 ) 风量:0.63-121m3 /min (22-4236CFM) 压力:最高可达6000mmAq (0.6kgf/cm2 ) 排出气体不含油污. 电脑动平衡校正,低振动低噪音. 风量稳定,压力变化对风量之影响小. 特殊叶轮设计,高效率省能源. 构造简单坚固,无故障. 使用一级研磨齿轮,精度高,寿命长,低噪音. 严格品质管理,标准化制品. 叶轮采用最新之龙门刨床六轴加工法,一次加工完成, 其具有更高之精密度. Wide range of capacity and pressure. Calibre:50mm-300mm (2 -12 ) Capacity:0.63-121m3 /min (22-4236CFM) Pressure: The pressure up to 6000mmAq (0.6kgf/cm2 ) Delivers completely oil-free air. Low oscillation and low noise by dynamic balance which revised by computer. Smaller change in capacity against change in pressure. High ef?ciency due to special impeller design, great air- delivery low power. Simpler and solider structure,less trouble. Highest quality pilot &

accurate great applied, long life and low noise assured. Standardized product with strict quality control. Our impeller has used the most advanced technic, one time for all working process of the six-shaft method, to enhance the precision of leave wheel. 特点 Features LRB 低压型三叶罗茨鼓风机 LRB low pressure three-lobe roots blower 原理 Theory LRB三叶罗茨风机是一种容积式风机,其压力 可根据用户的要求在允许的范围内加以调节. 在机壳内部设置有两组互朝相反方向回转的叶 轮,可在叶轮与叶轮、叶轮与壳体间仅留极小 缝隙的状态下回转.当叶轮经过吸入端与壳体 之间时,叶轮捕捉一定量的空气,随叶轮转旋 ,空气侧移,压力逐渐升高再送至出口端. LRB is a displacement blower, the pressure can be adjusted according to the requirement of the user in allowing range. There are two impellers in the blower body which rotate in the opposite di- rection, in order to let the impeller rotate, there are some tiny gaps between the impeller to body, impeller to impeller. When the impeller rotates through the suction inlet, it can gather an amo- unt of air between the body and impeller, then the impeller go on rotating, and the air will be pressured, the pressure in the body will rise, finally the air has been sent to the outlet. 出口端 吸入端 Outlet Suction inlet LRB GREEN SAFE DEVELOPMENT

02 型号说明 Type description LRB -

65 Diameter (mm) 口径 (mm) Low Pressure three-lobe roots blower 低压型三叶罗茨风机 结构简图 Construction NO. 名称 NAME 材质 MATERIAL 鼓风机本体 轴承座 油箱 甩油片 轴承固定片 骨架油封 皮带轮 主动叶轮 被动叶轮 V 型油封 轴承 齿轮 止动垫片 圆螺母 齿轮箱 加油栓塞 润滑油面计 泄油栓塞 注:不同机型结构略有不同. Note: Di?erent model has a little di?erernce. FC250 FC250 FC250 SS400 SS400 NBR FC250 FC250 FC250 NBR SUJ2 SCM435 SS400 S45C FC250 S45C Assembly S45C GB JIS HT250 HT250 HT250 Q235 Q235 NBR HT250 HT250 HT250 NBR GCr15 35CrMa Q235

45 HT250

45 Assembly

45 14

11 8

7 6

5 13 NO. 附件 ACCESSORIES

1 本机体 Blower body

2 电动机 Motor

3 底座 Foundation

4 皮带轮 Pulley

5 传动皮带 Driving belt

6 皮带护罩 Belt cover

7 入口消音器 Inlet silencer

8 防雨盖 Rain cover

9 逆止阀 Check valve Gauge pipe

10 缓冲管

11 吐出压力表 Outletpressuregauge

12 三通管 T-joint