CAJ | 학술논문

离心风机蜗壳的最佳宽度问题，目前工程中还没有得到完全解决。本文利用数值分析的方法，通过选择不同的蜗壳宽度参数，对4-72、5-48、6-30等三种常用后弯叶片离心风机进行空气动力学计算分析。计算结果表明，合理选择蜗壳宽度参数可以改善蜗壳内部流动特性，提高通风机空气动力性能。
리심풍궤와각적최가관도문제，목전공정중환몰유득도완전해결。본문이용수치분석적방법，통과선택불동적와각관도삼수，대4-72、5-48、6-30등삼충상용후만협편리심풍궤진행공기동역학계산분석。계산결과표명，합리선택와각관도삼수가이개선와각내부류동특성，제고통풍궤공기동력성능。
The optimum width of centrifugal fan volute is still not completely solved in engineering. In this paper, by choosing different volute width parameters, three commonly used backward curved blades centrifugal fans of 4-72, 5-48 and 6-30 were selected to carry out aerodynamic computational analysis. The calculation results show that the reasonable choice of volute width parameters can improve the flow characteristics inside the volute and therefore improve the performance of fan aerodynamics.