柜式(shi)離心風機選用要點：

1. 離心風機風(feng)(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)箱選用(yong)(yong)控制參(can)數(shu)(shu)為(wei)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)量(liang)(liang)(liang)、全壓、效(xiao)(xiao)率(lv)(lv)、噪聲以及電機(ji)(ji)(ji)功率(lv)(lv)等。有(you)離心式和軸流式。2. 通(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)由于設置了風(feng)(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)箱，有(you)利于消聲。3. 通(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)選型(xing)時，應(ying)考慮離心風(feng)(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)使(shi)用(yong)(yong)環境系統的漏風(feng)(feng)(feng)(feng)(feng)(feng)(feng)損失、計算誤差(cha)，以及通(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)實際(ji)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)量(liang)(liang)(liang)、風(feng)(feng)(feng)(feng)(feng)(feng)(feng)壓的負(fu)偏差(cha)，一般采(cai)用(yong)(yong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)量(liang)(liang)(liang)為(wei)1.05～1.1，風(feng)(feng)(feng)(feng)(feng)(feng)(feng)壓為(wei)1.10～1.15 的安全系數(shu)(shu)。但也不采(cai)用(yong)(yong)過(guo)大，以防止通(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)長(chang)期處在(zai)低(di)效(xiao)(xiao)率(lv)(lv)區運(yun)行。4. 注意管(guan)網阻力特(te)性(xing)與通(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)特(te)性(xing)的匹配(pei)關系。為(wei)使(shi)通(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)能穩定運(yun)行，應(ying)使(shi)通(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)在(zai)其最(zui)高(gao)效(xiao)(xiao)率(lv)(lv)點附近工(gong)作(zuo), 通(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)的工(gong)作(zuo)點位(wei)于性(xing)能曲線中全壓峰值點的右側（即(ji)大風(feng)(feng)(feng)(feng)(feng)(feng)(feng)量(liang)(liang)(liang)側，且一般位(wei)于全壓峰值的80%）。

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德州凱億  2022 04 30  于

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