混流泵
混流泵,兼有离心泵和轴流泵优点,结构简单,区宽,使用方便,适用于平原圩区农田排灌泵站。6、水泵安装好后,计算允许吸上高度和扬程,在水位稳定的条件下,要求为规定数量值的0。中国研制的混流泵中,蜗壳式的扬程5~12m,流量900~4000m3/h;导叶式的扬程 3~25.7m,流量45~20160m3/h。叶轮直径5.7m,流量80~100m3/s,扬程 6~12m,转速75r/min, 效率92.1%,配套功率7000kW,是世界上投入运行的大型混流泵之一。
混流泵是国际泵行业的技术开发***之一。它将部分代替离心泵和轴流泵工作。在日本、苏联、澳大利亚等国,混流泵的效率都达到或超过90%。
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.
3、安装基础:要求土质坚实牢固。
4、水泵安装时,必须保证泵轴的水平位置。
5、进水管末端应浸入水平面以下一米左右,但须离开泥底半米左右。
6、水泵安装好后,计算允许吸上高度和扬程,在水位稳定的条件下,要求为规定数量值的0.8~1.2倍范围,否则水泵不会正常运行
I.
Installation Principle
1. Installation
Height: Cidering the height according to the rainy season or dry season.The suction
vacuum
height can
not be higher than the adsorbing height.
2. Installation
Location:The location is better to close to the water source as p as
can.It should be not
only
keeping the safety but also shortening the water inlet pipe and reduce the
headloss
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