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消(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)是(shi)(shi)利用聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)吸(xi)收、反射、干涉等(deng)原(yuan)理(li)(li),降低通風與空調系統中氣流噪(zao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)裝置。根據消(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)原(yuan)理(li)(li)的(de)(de)(de)不同可以分為(wei)(wei)阻性(xing)(xing)(xing)、抗性(xing)(xing)(xing)、共振型和(he)復合(he)型等(deng)。一(yi)、阻性(xing)(xing)(xing)消(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi),阻性(xing)(xing)(xing)消(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)利用吸(xi)聲(sheng)(sheng)(sheng)(sheng)材(cai)(cai)料的(de)(de)(de)吸(xi)聲(sheng)(sheng)(sheng)(sheng)作(zuo)用而消(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)。其(qi)構(gou)造是(shi)(shi)把(ba)吸(xi)聲(sheng)(sheng)(sheng)(sheng)材(cai)(cai)料固定在氣流流動(dong)的(de)(de)(de)管(guan)道內(nei)壁,或按一(yi)定方式排列在管(guan)道或殼體內(nei)構(gou)成阻性(xing)(xing)(xing)消(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi),吸(xi)聲(sheng)(sheng)(sheng)(sheng)材(cai)(cai)料能(neng)(neng)(neng)夠把(ba)入(ru)射在其(qi)上(shang)的(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)能(neng)(neng)(neng)部分地(di)吸(xi)收掉。聲(sheng)(sheng)(sheng)(sheng)能(neng)(neng)(neng)之所以能(neng)(neng)(neng)被吸(xi)收,是(shi)(shi)由于(yu)(yu)吸(xi)聲(sheng)(sheng)(sheng)(sheng)材(cai)(cai)料的(de)(de)(de)多孔(kong)(kong)性(xing)(xing)(xing)和(he)松(song)散性(xing)(xing)(xing)。當聲(sheng)(sheng)(sheng)(sheng)波進入(ru)孔(kong)(kong)隙(xi),引起孔(kong)(kong)隙(xi)中的(de)(de)(de)空氣和(he)材(cai)(cai)料產生微小的(de)(de)(de)振動(dong),由于(yu)(yu)摩擦和(he)粘(zhan)滯阻力(li)。使相當一(yi)部分聲(sheng)(sheng)(sheng)(sheng)能(neng)(neng)(neng)化為(wei)(wei)熱能(neng)(neng)(neng)而被吸(xi)收掉。
層高過高如何提高制冷效果,推薦風機通風管解決方案:較之于常規層高的房屋(一般為2.6-2.7米左右)。別墅的層高一般都為3米甚至以上的高度。此前提下中央空調制冷和采暖的配比較之于一般層高的房屋會更高。如一般平層的配比為200w/平方。別墅為230-280w/平方。空調外機需要如何擺放較為合理,解決方案:別墅由于面積較大,較之于平層一般外機的功率較大。體積也就較之平層會更大。風機通風管一般的擺放位置位于本身(shen)建(jian)筑的自(zi)留機位或(huo)者位于門口或(huo)者陽臺(tai)花園的平臺(tai)之(zhi)上。鋪設可供平衡的水泥臺(tai)面(mian)即可。
風(feng)(feng)(feng)管(guan)(guan)(guan)主(zhu)要指中央空(kong)調系統(tong)的(de)通風(feng)(feng)(feng)管(guan)(guan)(guan)道(dao),它(ta)常(chang)常(chang)被忽(hu)視,但卻(que)是空(kong)調系統(tong)的(de)重要組成部分,目前常(chang)見的(de)風(feng)(feng)(feng)管(guan)(guan)(guan)主(zhu)要有(you)四種:1)鍍鋅薄(bo)(bo)鋼板風(feng)(feng)(feng)管(guan)(guan)(guan);2)無(wu)(wu)機玻(bo)璃鋼風(feng)(feng)(feng)管(guan)(guan)(guan);3)復合玻(bo)纖板風(feng)(feng)(feng)管(guan)(guan)(guan);4)纖維(wei)織物風(feng)(feng)(feng)管(guan)(guan)(guan)。鍍鋅薄(bo)(bo)鋼板風(feng)(feng)(feng)管(guan)(guan)(guan):早使用的(de)風(feng)(feng)(feng)管(guan)(guan)(guan),采用鍍鋅薄(bo)(bo)鋼板制(zhi)(zhi)作(zuo),適合含濕(shi)量小的(de)一般(ban)性氣體(ti)的(de)輸送,有(you)易生(sheng)銹,無(wu)(wu)保溫和(he)消聲功能,制(zhi)(zhi)作(zuo)安裝(zhuang)周期(qi)長的(de)特點。無(wu)(wu)機玻(bo)璃鋼風(feng)(feng)(feng)管(guan)(guan)(guan):較新的(de)風(feng)(feng)(feng)管(guan)(guan)(guan)類型,采用玻(bo)璃纖維(wei)增強(qiang)無(wu)(wu)機材料制(zhi)(zhi)作(zuo),遇火不燃、耐腐蝕、份量重,硬度大但較脆,受(shou)自重影響易變形(xing)酥(su)裂,無(wu)(wu)保溫和(he)消聲性能,制(zhi)(zhi)作(zuo)安裝(zhuang)周期(qi)長。
防(fang)火閥(fa)(fa)(fa)是(shi)用來阻斷來自火災區的(de)(de)(de)煙氣及(ji)火焰通(tong)過,并在(zai)一定時間內能滿足耐火穩定性和(he)耐火完整性要(yao)求的(de)(de)(de)閥(fa)(fa)(fa)門。為(wei)了(le)(le)將火災引起的(de)(de)(de)損失減少到小(xiao)程度,就(jiu)必(bi)須采取有效的(de)(de)(de)防(fang)火、防(fang)排煙措施,以控制(zhi)火勢蔓(man)延,而防(fang)火閥(fa)(fa)(fa)在(zai)通(tong)風、空(kong)調及(ji)防(fang)排煙系統中的(de)(de)(de)合理設置,則起到了(le)(le)重要(yao)的(de)(de)(de)作用。防(fang)火閥(fa)(fa)(fa)的(de)(de)(de)結構(gou)(gou)和(he)工(gong)作原理,防(fang)火閥(fa)(fa)(fa)主要(yao)由閥(fa)(fa)(fa)體(ti)和(he)執(zhi)行機構(gou)(gou)組(zu)(zu)成(cheng)。閥(fa)(fa)(fa)體(ti)由殼(ke)體(ti)、法蘭、葉片及(ji)葉片聯動(dong)機構(gou)(gou)等組(zu)(zu)成(cheng)。執(zhi)行機構(gou)(gou)由外殼(ke)、葉片調節(jie)機構(gou)(gou)、離合器、溫度熔斷器等組(zu)(zu)成(cheng)。防(fang)火閥(fa)(fa)(fa)的(de)(de)(de)執(zhi)行機構(gou)(gou)是(shi)通(tong)過金屬易熔片和(he)離合器機構(gou)(gou)來控制(zhi)葉片的(de)(de)(de)轉動(dong)。