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id="newsview_cs">作者：admin　　來(lái)源：http://m.wxbaozhenjx.com　　更新時(shí)間：2019-02-22　　閱讀數：685 </div> <div class="phdxtxt" id="content">（1）合理挑選通風(fēng)設備的機型。在噪聲控制需要高的場(chǎng)合，應選用低噪聲通風(fēng)設備。不一樣類(lèi)型的通風(fēng)設備在附和的風(fēng)量、風(fēng)壓下、機翼型葉片的離心通風(fēng)設備噪聲小，前向版型葉片的離心通風(fēng)設備噪聲大。<br /> <p> 　?。?）通風(fēng)設備的作業(yè)點(diǎn)應靠近最高功率點(diǎn)。同一類(lèi)型的通風(fēng)設備功率越高，噪聲越小。為使通風(fēng)設備的作業(yè)工況點(diǎn)堅持在設備出口1m處。它能使2000Hz以下的噪聲下降。在通風(fēng)設備入口處氣流<a href="../content_785.html" target="_blank">廣東環(huán)保工程</a>應堅持均勻。 </p> <p> <img src="UpLoadFile/image/20190222/20190222094469026902.jpg" width="350" height="292" alt="環(huán)保工程公司" /> </p> 　?。?）在可以條件下恰當下降通風(fēng)設備的轉速。通風(fēng)設備的旋轉噪聲與葉輪圓周速度10次方成份額，渦流噪聲與葉輪圓周速度6次方（或5次方）成份額。故下降轉速可下降噪聲。<br /> 　?。?）通風(fēng)設備進(jìn)、出口的噪聲級是通風(fēng)理、風(fēng)壓曾加而增大。因此，計劃通風(fēng)體系時(shí)，應盡量減少體系的壓力丟掉。當通風(fēng)體系的總量和壓力丟掉較大時(shí)，可將其分為小體系。<br /> 　?。?）氣流在管道內的流速不宜過(guò)高，防止致使再生噪聲。判定管道內氣流流速應根據不一樣需要按東莞環(huán)保工程有關(guān)規定挑選。<br /> 　?。?）留心通風(fēng)設備與電動(dòng)機的傳動(dòng)方法。選用直聯(lián)傳動(dòng)的通風(fēng)設備噪聲最小，用聯(lián)軸器的次之，用沒(méi)有接縫的三角皮帶傳動(dòng)的稍差。通風(fēng)設備應配用低噪聲的電動(dòng)機。<br /> 文章源自：環(huán)保工程公司 <a href="../" target="_blank">http://m.wxbaozhenjx.com/</a><br /></div> <div id="tjnrljf" class="flickr"></div> <div class="rtnzlxb" id="pageview" class="clear"> <ul> <li><a href="content.asp?id=957&tp=Free001" title="Previous">上一條：污水處理設備有哪些操作標準</a></li> <li><a href="content.asp?id=955&tp=Free001" title="Next">下一條：工程廢氣處理有哪些主要措施</a></li> </ul> </div> </div></p></div> </div><div id="vnjvznh" class="clear" style="height:30px;"></div></div></div></div> <div class="vvrxjnb" id="fft"> <div class="ztvrdht" id="indexb"> <img src="Template/Free001/Images/hsewm_41.jpg" border="0" align="absmiddle" style="float:right; margin-top:50px;"/> <div class="zhtzbnh" id="fftxx"> 地址：江門(mén)市海琪工業(yè)園(江門(mén)市江海區金甌路412號) 網(wǎng)址：<a href="../">m.wxbaozhenjx.com</a><br /> Copyright © 2018 江門(mén)市勝海環(huán)?？萍加邢薰? 版權所以 <a 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