混流泵
三)密封装置是由填料函、水封圈、填料压盖和铅粉(或油浸)石棉盘根填料组成。其作用有:
1、启动时防止空气吸入泵内,起密封作用。
2、抽水时防止水从泵内过多的沿轴大量流出。
III. Sealing equipment is composed of stuffing box,
water seal, packing gland,lead
工业混流泵厂家
混流泵
三)密封装置是由填料函、水封圈、填料压盖和铅粉(或油浸)石棉盘根填料组成。其作用有:
1、启动时防止空气吸入泵内,起密封作用。
2、抽水时防止水从泵内过多的沿轴大量流出。
III. Sealing equipment is composed of stuffing box,
water seal, packing gland,lead powder(or oil immersed)
asbestos
packing padding.Its use is as follows:
1. When
starting, stop the pump from sucking air and realize the sealing function.
2. When
drawing water, stop the water running out through the axle from pump.

轴套用来保护轴不使它与填料直接摩擦,若长期使用中发现轴套磨损过多,必须换轴套。
IV. Axile sleeve is used to protect the axle from friction
with padding.In long term using, change the axile sleeve
when the sleeve wears down too much.
(五)水泵轴的两个支承是轴承体内的轴承,轴承体内存有适量润滑脂以润滑轴承。
V. Two supportings of water pump axile are bearings in
bearing body.There is some lubricating grease in bearing
body for lubricating bearing.
4、叶轮表面的气蚀。由于叶片背水面运行时产生负压,当压力Pk
5、容积损失和机械损失。由于泵使用时间长,机械磨损产生漏失和阻力增大,使容积效率和机械效率降低。
以上原因,使水泵性能变差。运行效率降低2~5%,严重的可以使水泵效率降低10%以上。
(作者: 来源:)