高扬程提水工程泵站分级方案分析

Analysis of Staging Schemes of Pumping Stations for High-Lift Water Pumping Projects

高扬程提水泵站主要分布在中国西北和西南山区,广泛应用于供水工程和灌溉工程,为解决贫困山区人民的生产生活用水起着至关重要的作用。对于该类提水工程,通常采用梯级泵站的型式解决,而梯级泵站的分级数量也因各个工程的条件不同而差异较大。以西南地区总扬程1140.00 m的提水工程为例,进行多方案比选分析,最终确定工程采用三级泵站提水方案,并与已建类似工程进行对比分析,得出梯级泵站分级主要受地形地质、交通条件、设备选型、水锤压力等综合因素影响的结论和类似工程级数选择的建议。

High-lift pumping stations are mainly distributed in the mountainous areas of northwest and southwest China,which are widely used in water supply projects and irrigation projects,and plays a vital role in supplying production and living water for people in undeveloped mountainous area.For the water lifting project of this kind,the cascade pumping stations are usually used to solve the water lifting problem,and the number of cascade pumping stations is also different due to various conditions of each project.Taking a water lifting project with a total head of 1140.00 m in the southwest region as an example,comparison and analysis of multiple schemes are carried out,and it is finally determined to use three-stage pumping stations to lift the water.Through comparison with existing similar projects,it is concluded that the staging of cascade pumping stations is mainly affected by comprehensive factors such as topography and geology,traffic conditions,equipment selection and water hammer pressure,etc.and recommendations for the staging of similar project is put forward.