大小单双倍投顺口溜

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管道泵选型的基本原则

来源: 时间:2019-09-25 22:14:24 次数:

管道泵选择的基本原则应从工艺流程,供水和排水要求,从液体输送,设备头,液体性质,管道布局和运行条件五个方面。让我们来看看管道泵选择和管道泵选择方法和程序的基本原理。
管道泵选择的基本原则应从工艺流程,供水和排水要求,从液体输送,设备头,液体性质,管道布局和运行条件五个方面。让我们来看看管道泵选择和管道泵选择方法和程序的基本原理。
 
1、应满足不同时期的设计流量、设计水头和供排水要求。
2、在平均升力下,管线泵应在高效区运行;在最高和最低升力下,管线泵应能够安全稳定地运行,而不应离开管线泵的高效区。在各种工作条件的设计标准中,管线泵机组不出现空化、振动和超载现象。
管道泵选型
3、应选择性能好、高效面广、能适应泵站扬程和流量变化的泵类型。推荐使用国家推荐的系列产品。当系列产品不能满足要求时,按照规定的程序进行新产品的开发。适用于水头变化较大的泵站。对于流量变化较大的泵站,宜选用H_(Q)曲线下降较大的管状泵,而对于流量变化较大的泵站,选用H_Q曲线适用于泵站。
4、选择的管道泵的类型和数量应尽量减少泵站的建设成本(设备费用和民用投资总额)。易于施工、操作、维护和管理。
5、对于升压管道泵站,管道泵的型号和数量应确保上下泵站之间的流量协调要求。现场避免或减少流速是不够的,或者下层泵站的流量不足或流量太大而丢弃水。
6、对于叶轮直径大于1600 mm的轴流泵和混流泵,应提供装置模型试验数据。当溢流元件外形发生较大变化时

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