The characteristics of the hydraulic model,gear,bearing,sealing and axis couplet of large-sized bevel gear drive tubular pump set are introduced through analysis of the structural model selection of the units in Luyang Pumping Station of Huai River outfall waterway.It is expatiated that the large-sized bevel gear drive tubular pump has the merits of simple structure,easy installation,maintenance,and high operation efficiency of the unit.Thus,the large-sized bevel gear drive tubular pump units can be used in the pumping station project of the South to North Water Transfer Project,farmland irrigation and drainage projects,and the urban area flood control pumping stations.

1缘由 淮河入海水道近期工程需分别在江苏省阜宁县新建芦杨泵站、滨海县新建妇女河泵站各1座.芦杨泵站是具有抽排、自排功能的排水泵站,妇女河泵站除具有抽排、自排功能外,还具有抽排滨海县县城污水的功能.

The selection of Water Pilot Bearings is a very complex issue for the construction of largehorizontal pump station. Unsuitable selection may cause serious problems during the pump running. Acomprehensive analysis on this issue is given , which is experienced from the Reconstruction Project ofQinhuaxinhe Pump Station.

The character of the hydraulic model, gear, axletree, seal and shaft coupling which adopted in Huge umbrella-gear transmission routing through unit are introduced. The merits of the selected unit which has simple structure, convenience run and maintenance, less install task and high efficiency are expatiated. It supplies reference for the design of pumping station unit.

轴流泵扬程低,直接进行计算设计性能难以保证,因而轴流泵,尤其是大型轴流泵,大多选择模型进行相似设计.本文介绍系列轴流泵水力模型试验研究的阶段性成果,在扬程4.5～10.5 m区段内,给出6个模型的综合特性曲线供选用.同时对有关模型试验、叶片数控加工、模型的特点等进行了分析说明,对模型的技术指标作了评价.

研究系列轴流泵模型流量、比转速的档次、效率、汽蚀比转速指标、轮毂比的确定、出口环量修正、加工定位及试验验收等问题.

淮阴二站是南水北调东线方案第三级抽水站,总设计流量为100m3/s,选用3台3.1m立式轴流泵,配套3台10kV 3 000kW同步电动机,总用电负荷约10 500kVA,选用SF9-12 500kVA 110/10kV变压器向抽水站供电.