系列化双吸硫酸风机通用蜗壳的设计及性能分析  

Design and Performance Analysis of General Volute Matched with Serialization Double Suction Sulfuric Acid Fan

作　　者：冀文慧 冀春俊[2] 孙琦[2] 赵宝德[3] 徐养卓 

机构地区：[1]大连中意透平科技有限公司 [2]大连理工大学能源与动力学院,辽宁大连116024 [3]沈阳鼓风机集团股份有限公司

出　　处：《风机技术》2016年第2期42-46,共5页Chinese Journal of Turbomachinery

摘　　要：运用CFD软件NUMECA对某双吸硫酸风机系列化叶轮中的最大流量叶轮和最小流量叶轮进行数值计算,进而根据计算结果设计系列化叶轮通用的蜗壳。采用自由运动速度法分别设计常用的易于制造的圆形蜗壳和方形蜗壳进行性能对比。通过计算对比发现方形蜗壳比圆形蜗壳效率和压比均较高,具有较好的变工况性能。设计系列化叶轮通用的蜗壳有助于减少蜗壳数量,降低生产成本。同时用数值模拟的设计方法具有方便快捷、成本低、调整性好等较多优势。A general volute matched with a serialization impeller was designed based on the results of simulated calculation of maximum and minimum flow in a double suction Sulfuric acid fan,with the serialization generated via by CFD software NUMECA. A free motion velocity method was utilized to design a commonly used and easily produced circular volute and square volute respectively to compare their performance. According to calculations and the comparison results, the square volute is both higher than the circular volute in efficiency and pressure ratio, and has good performance under variable conditions. The design of general volutes for serialized impellers can help reduce the number of volutes While simultaneously lowering the production cost. Using a numerical simulation method also has many advantages in the design of volutes, such as convenience, low cost and ease of making adjustments.

关 键 词：双吸硫酸风机 蜗壳 系列化 

分 类 号：TH432.1[机械工程—机械制造及自动化] TK05[动力工程及工程热物理]