离心式通风机的节能研究与数值分析

发布时间：2018-04-26 18:59

本文选题：离心通风机 + 节能　；参考：《东北大学》2012年硕士论文

【摘要】：离心式通风机是国民经济各个部门都广泛应用的通用机械。近年来由于对效率的更高追求,离心式通风机的节能技术研究就成了贯彻节能减排基本能源政策的有效途径。目前国内离心式通风机节能领域主要是针对个别离心式通风机节能设计的研究,而与节能运行相结合的较系统且深入的研究还较少。离心式通风机节能形式多种多样,但概括起来可以归结为两个方面的问题：离心式通风机的节能运行和离心式通风机的节能设计。本文系统阐述了离心通风机的节能运行和节能设计,还结合JYLT一1No6A型离心式自络筒通风机模型所进行的数值模拟,对离心通风机进行了节能运行和节能设计的研究。对比了节流调节和变频变速调节两种运行调节的节能效果。接着又研究了改变叶片出口角及叶片数量对该风机性能的影响。结果表明,当叶片出口角为40度且叶片数为10时风机性能最好,效率最高。
[Abstract]:Centrifugal ventilator is a universal machine widely used in every department of national economy. In recent years, due to the pursuit of higher efficiency, the research of energy saving technology of centrifugal fan has become an effective way to carry out the basic energy policy of energy saving and emission reduction. At present, the field of energy saving of centrifugal fan in China is mainly aimed at the research of energy saving design of individual centrifugal fan, but the more systematic and in-depth research combined with energy saving operation is still less. There are many kinds of energy saving forms of centrifugal fan, but it can be summed up as two problems: energy saving operation of centrifugal fan and energy saving design of centrifugal fan. In this paper, the energy saving operation and design of centrifugal fan are described systematically. Combined with the numerical simulation of JYLT 1No6A centrifugal fan model, the energy saving operation and design of centrifugal fan are studied. The energy-saving effects of throttling regulation and variable-speed variable frequency regulation are compared. Then the influence of changing the blade outlet angle and the number of blades on the performance of the fan is studied. The results show that when the blade outlet angle is 40 degrees and the number of blades is 10:00, the performance of fan is the best and the efficiency is the highest.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH432

【参考文献】