模压不锈钢叶轮室在大型轴流泵中的应用浅析

Brief Analysis on Application of Molded Stainless Steel Impeller Chamber in Large Axial Flow Pump

摘要:

模压轴流泵不锈钢叶轮室主要用于大型给排水、远距离送水以及防洪排涝、城市河道调水、灌溉等大型重点水利工程的大口径叶片可调轴流泵。这些工程关系到国计民生，具有重大的社会效益和经济效益。随着社会的发展、技术的进步，这些大型水利工程不仅对水泵的水力性能、结构性能都提出很高的要求，同时也对水泵的加工工艺、制造质量和抗汽蚀性能等提出了更高的要求。模压不锈钢叶轮室具有质量可靠、抗腐蚀汽蚀性能优、外观整洁美观、制造周期可控等优点。鉴于此，在设计、生产大型轴流泵时，对核心水力零件——叶轮室探索应用模压不锈钢焊接的新工艺、新结构，全面提高叶轮室的性能和质量。

Abstract:

The stainless steel impeller chamber of molded axial flow pump is mainly used for the large-diameter blade adjustable axial flow pumps in the large-scale water supply and drainage, long-distance water conveyance, flood control and waterlogging drainage, urban river water transfer, irrigation and other large-scale key water conservancy projects. These projects are related to the national economy and the people's livelihood, and have the significant social and economic benefits. With the development of society and the advancement of technology, these large-scale water conservancy projects put forward not only the high requirements for the hydraulic performance and structural performance of water pumps, but also the higher requirements for the processing technology, manufacturing quality and cavitation resistance of water pumps. The molded stainless steel impeller chamber has the advantages of reliable quality, excellent corrosion and cavitation resistance, neat and attractive appearance, and controllable manufacturing cycle. In view of this, when the large axial flow pumps are designed and manufactured, the application of new processes and new structures of molded stainless steel welding is explored for the impeller chamber of core hydraulic parts to comprehensively improve the performance and quality of the impeller chamber.