離心式通風(fēng)機(jī)的節(jié)能研究與數(shù)值分析
本文選題:離心通風(fēng)機(jī) + 節(jié)能 ; 參考:《東北大學(xué)》2012年碩士論文
【摘要】:離心式通風(fēng)機(jī)是國(guó)民經(jīng)濟(jì)各個(gè)部門都廣泛應(yīng)用的通用機(jī)械。近年來(lái)由于對(duì)效率的更高追求,離心式通風(fēng)機(jī)的節(jié)能技術(shù)研究就成了貫徹節(jié)能減排基本能源政策的有效途徑。目前國(guó)內(nèi)離心式通風(fēng)機(jī)節(jié)能領(lǐng)域主要是針對(duì)個(gè)別離心式通風(fēng)機(jī)節(jié)能設(shè)計(jì)的研究,而與節(jié)能運(yùn)行相結(jié)合的較系統(tǒng)且深入的研究還較少。離心式通風(fēng)機(jī)節(jié)能形式多種多樣,但概括起來(lái)可以歸結(jié)為兩個(gè)方面的問題:離心式通風(fēng)機(jī)的節(jié)能運(yùn)行和離心式通風(fēng)機(jī)的節(jié)能設(shè)計(jì)。 本文系統(tǒng)闡述了離心通風(fēng)機(jī)的節(jié)能運(yùn)行和節(jié)能設(shè)計(jì),還結(jié)合JYLT一1No6A型離心式自絡(luò)筒通風(fēng)機(jī)模型所進(jìn)行的數(shù)值模擬,對(duì)離心通風(fēng)機(jī)進(jìn)行了節(jié)能運(yùn)行和節(jié)能設(shè)計(jì)的研究。對(duì)比了節(jié)流調(diào)節(jié)和變頻變速調(diào)節(jié)兩種運(yùn)行調(diào)節(jié)的節(jié)能效果。接著又研究了改變?nèi)~片出口角及葉片數(shù)量對(duì)該風(fēng)機(jī)性能的影響。結(jié)果表明,當(dāng)葉片出口角為40度且葉片數(shù)為10時(shí)風(fēng)機(jī)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.
【學(xué)位授予單位】:東北大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2012
【分類號(hào)】:TH432
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