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消(xiao)防(fang)排(pai)(pai)(pai)(pai)煙(yan)(yan)機(ji)(ji)(ji)(ji)一(yi)(yi)(yi)般(ban)是(shi)采(cai)(cai)用(yong)(yong)離心式(shi)(shi)風機(ji)(ji)(ji)(ji)和(he)軸流(liu)(liu)(liu)(liu)(liu)式(shi)(shi)風機(ji)(ji)(ji)(ji)兩(liang)(liang)種重要(yao)的(de)(de)(de)型(xing)(xing)式(shi)(shi)。從消(xiao)防(fang)排(pai)(pai)(pai)(pai)煙(yan)(yan)風機(ji)(ji)(ji)(ji)風量(liang)(liang)、風壓(ya)考慮來(lai)看,消(xiao)防(fang)排(pai)(pai)(pai)(pai)煙(yan)(yan)風機(ji)(ji)(ji)(ji)是(shi)高(gao)比轉高(gao)效率(lv)的(de)(de)(de)風機(ji)(ji)(ji)(ji),更(geng)加的(de)(de)(de)適合(he)選用(yong)(yong)軸流(liu)(liu)(liu)(liu)(liu)風機(ji)(ji)(ji)(ji)。軸流(liu)(liu)(liu)(liu)(liu)式(shi)(shi)消(xiao)防(fang)排(pai)(pai)(pai)(pai)煙(yan)(yan)風機(ji)(ji)(ji)(ji)有(you)兩(liang)(liang)種設計型(xing)(xing)式(shi)(shi),一(yi)(yi)(yi)種為(wei)電機(ji)(ji)(ji)(ji)與主(zhu)氣(qi)(qi)流(liu)(liu)(liu)(liu)(liu)分離型(xing)(xing)式(shi)(shi),另(ling)一(yi)(yi)(yi)種為(wei)電機(ji)(ji)(ji)(ji)置于(yu)(yu)主(zhu)氣(qi)(qi)流(liu)(liu)(liu)(liu)(liu)之(zhi)中。根(gen)據(ju)(ju)煙(yan)(yan)氣(qi)(qi)溫(wen)度的(de)(de)(de)不同(tong)(tong)(tong),采(cai)(cai)用(yong)(yong)不同(tong)(tong)(tong)型(xing)(xing)式(shi)(shi)的(de)(de)(de)消(xiao)防(fang)排(pai)(pai)(pai)(pai)煙(yan)(yan)風機(ji)(ji)(ji)(ji),溫(wen)度大于(yu)(yu)400℃時,采(cai)(cai)用(yong)(yong)電機(ji)(ji)(ji)(ji)與主(zhu)氣(qi)(qi)流(liu)(liu)(liu)(liu)(liu)分離型(xing)(xing)式(shi)(shi),溫(wen)度小于(yu)(yu)400℃大于(yu)(yu)150℃,兩(liang)(liang)種型(xing)(xing)式(shi)(shi)的(de)(de)(de)電機(ji)(ji)(ji)(ji)都(dou)可以(yi)選擇,在溫(wen)度小于(yu)(yu)150℃的(de)(de)(de)時候,采(cai)(cai)用(yong)(yong)電機(ji)(ji)(ji)(ji)置于(yu)(yu)主(zhu)氣(qi)(qi)流(liu)(liu)(liu)(liu)(liu)之(zhi)中。 軸流(liu)(liu)(liu)(liu)(liu)消(xiao)防(fang)排(pai)(pai)(pai)(pai)煙(yan)(yan)風機(ji)(ji)(ji)(ji)的(de)(de)(de)流(liu)(liu)(liu)(liu)(liu)量(liang)(liang)范圍從7200m?/h至110000m?/h,有(you)不同(tong)(tong)(tong)型(xing)(xing)號的(de)(de)(de)編制,用(yong)(yong)來(lai)滿足不同(tong)(tong)(tong)通風排(pai)(pai)(pai)(pai)煙(yan)(yan)流(liu)(liu)(liu)(liu)(liu)量(liang)(liang)的(de)(de)(de)需求。消(xiao)防(fang)排(pai)(pai)(pai)(pai)煙(yan)(yan)風機(ji)(ji)(ji)(ji)可以(yi)根(gen)據(ju)(ju)壓(ya)力(li)(li)情況的(de)(de)(de)不同(tong)(tong)(tong)分為(wei)兩(liang)(liang)種類型(xing)(xing),一(yi)(yi)(yi)類為(wei)軸流(liu)(liu)(liu)(liu)(liu)式(shi)(shi)消(xiao)防(fang)排(pai)(pai)(pai)(pai)煙(yan)(yan)機(ji)(ji)(ji)(ji),其(qi)各機(ji)(ji)(ji)(ji)號的(de)(de)(de)壓(ya)力(li)(li)在600Pa左(zuo)右(you),另(ling)一(yi)(yi)(yi)類為(wei)斜流(liu)(liu)(liu)(liu)(liu)消(xiao)防(fang)排(pai)(pai)(pai)(pai)煙(yan)(yan)風機(ji)(ji)(ji)(ji),各機(ji)(ji)(ji)(ji)號的(de)(de)(de)壓(ya)力(li)(li)在1000Pa左(zuo)右(you)。為(wei)了滿足排(pai)(pai)(pai)(pai)煙(yan)(yan)量(liang)(liang)和(he)通風換氣(qi)(qi)的(de)(de)(de)要(yao)求,消(xiao)防(fang)排(pai)(pai)(pai)(pai)煙(yan)(yan)風機(ji)(ji)(ji)(ji)一(yi)(yi)(yi)般(ban)都(dou)設計了雙速型(xing)(xing)的(de)(de)(de)結(jie)構(gou)模式(shi)(shi)。低速可以(yi)通風使用(yong)(yong),高(gao)速可以(yi)排(pai)(pai)(pai)(pai)放煙(yan)(yan)霧,這樣不但可以(yi)節約能源同(tong)(tong)(tong)時又降(jiang)低了噪聲污染。
消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)器是利(li)用聲(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)吸(xi)收(shou)(shou)、反射(she)、干涉等原(yuan)(yuan)理,降低通(tong)風與空調系(xi)統中氣(qi)流噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)裝置。根(gen)據消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)原(yuan)(yuan)理的(de)(de)(de)(de)不同可(ke)以(yi)分為(wei)阻(zu)(zu)性(xing)(xing)(xing)、抗性(xing)(xing)(xing)、共振型(xing)和(he)復(fu)合型(xing)等。一(yi)、阻(zu)(zu)性(xing)(xing)(xing)消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)器,阻(zu)(zu)性(xing)(xing)(xing)消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)器利(li)用吸(xi)聲(sheng)(sheng)(sheng)(sheng)(sheng)材(cai)(cai)料(liao)(liao)的(de)(de)(de)(de)吸(xi)聲(sheng)(sheng)(sheng)(sheng)(sheng)作用而消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)。其構造是把吸(xi)聲(sheng)(sheng)(sheng)(sheng)(sheng)材(cai)(cai)料(liao)(liao)固定(ding)在氣(qi)流流動的(de)(de)(de)(de)管道內(nei)(nei)壁,或按一(yi)定(ding)方(fang)式排列(lie)在管道或殼體(ti)內(nei)(nei)構成阻(zu)(zu)性(xing)(xing)(xing)消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)器,吸(xi)聲(sheng)(sheng)(sheng)(sheng)(sheng)材(cai)(cai)料(liao)(liao)能(neng)夠把入射(she)在其上的(de)(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)(sheng)能(neng)部分地(di)吸(xi)收(shou)(shou)掉。聲(sheng)(sheng)(sheng)(sheng)(sheng)能(neng)之所以(yi)能(neng)被吸(xi)收(shou)(shou),是由于(yu)吸(xi)聲(sheng)(sheng)(sheng)(sheng)(sheng)材(cai)(cai)料(liao)(liao)的(de)(de)(de)(de)多(duo)孔(kong)性(xing)(xing)(xing)和(he)松(song)散(san)性(xing)(xing)(xing)。當(dang)聲(sheng)(sheng)(sheng)(sheng)(sheng)波進入孔(kong)隙,引起孔(kong)隙中的(de)(de)(de)(de)空氣(qi)和(he)材(cai)(cai)料(liao)(liao)產生微小(xiao)的(de)(de)(de)(de)振動,由于(yu)摩(mo)擦和(he)粘滯阻(zu)(zu)力。使相(xiang)當(dang)一(yi)部分聲(sheng)(sheng)(sheng)(sheng)(sheng)能(neng)化為(wei)熱能(neng)而被吸(xi)收(shou)(shou)掉。
在了解空(kong)(kong)(kong)調(diao)壓(ya)(ya)縮(suo)(suo)(suo)機的(de)(de)(de)工作(zuo)原(yuan)理之前(qian),先(xian)來認識下空(kong)(kong)(kong)調(diao)壓(ya)(ya)縮(suo)(suo)(suo)機的(de)(de)(de)工作(zuo)回(hui)路。空(kong)(kong)(kong)調(diao)壓(ya)(ya)縮(suo)(suo)(suo)機的(de)(de)(de)工作(zuo)回(hui)路分(fen)為蒸發(fa)區(qu)(qu)和冷(leng)(leng)(leng)凝(ning)區(qu)(qu),空(kong)(kong)(kong)調(diao)壓(ya)(ya)縮(suo)(suo)(suo)機在空(kong)(kong)(kong)調(diao)制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)回(hui)路中(zhong)起壓(ya)(ya)縮(suo)(suo)(suo)驅動制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)的(de)(de)(de)作(zuo)用(yong)。空(kong)(kong)(kong)調(diao)制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)時,中(zhong)央空(kong)(kong)(kong)調(diao)壓(ya)(ya)縮(suo)(suo)(suo)機把(ba)制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)從(cong)低壓(ya)(ya)區(qu)(qu)抽取來經緊(jin)縮(suo)(suo)(suo)后(hou)送到(dao)高(gao)(gao)壓(ya)(ya)區(qu)(qu)冷(leng)(leng)(leng)卻凝(ning)結,經過散熱(re)(re)片(pian)分(fen)發(fa)出熱(re)(re)量(liang)到(dao)空(kong)(kong)(kong)氣(qi)中(zhong),制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)也從(cong)氣(qi)態(tai)(tai)變成液態(tai)(tai),壓(ya)(ya)力升高(gao)(gao)。制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)再(zai)從(cong)高(gao)(gao)壓(ya)(ya)區(qu)(qu)流(liu)向低壓(ya)(ya)區(qu)(qu),經過毛細管放射到(dao)蒸發(fa)器中(zhong),壓(ya)(ya)力驟降,液態(tai)(tai)制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)立刻變成氣(qi)態(tai)(tai),經過散熱(re)(re)片(pian)吸(xi)收空(kong)(kong)(kong)氣(qi)中(zhong)大量(liang)的(de)(de)(de)熱(re)(re)量(liang)。這樣(yang)循(xun)環應用(yong)就(jiu)完成了制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)系統。壓(ya)(ya)縮(suo)(suo)(suo)機通(tong)過節流(liu)裝(zhuang)置節流(liu)之后(hou),通(tong)入到(dao)蒸發(fa)器中(zhong),將(jiang)(jiang)所需要冷(leng)(leng)(leng)卻的(de)(de)(de)媒(mei)介冷(leng)(leng)(leng)卻換(huan)熱(re)(re)。例(li)如將(jiang)(jiang)蒸發(fa)器連接到(dao)樓里的(de)(de)(de)各(ge)個房間,蒸發(fa)器內(nei)的(de)(de)(de)蛇行(xing)(xing)管將(jiang)(jiang)同空(kong)(kong)(kong)氣(qi)進行(xing)(xing)換(huan)熱(re)(re),再(zai)通(tong)過鼓風將(jiang)(jiang)冷(leng)(leng)(leng)氣(qi)吹(chui)向房間的(de)(de)(de)空(kong)(kong)(kong)氣(qi)當(dang)中(zhong)。而蒸發(fa)器蛇行(xing)(xing)管內(nei)的(de)(de)(de)冷(leng)(leng)(leng)凍劑(ji)(ji)換(huan)熱(re)(re)后(hou)變成低壓(ya)(ya)蒸氣(qi)回(hui)到(dao)壓(ya)(ya)縮(suo)(suo)(suo)機,再(zai)被壓(ya)(ya)縮(suo)(suo)(suo)機壓(ya)(ya)縮(suo)(suo)(suo),這樣(yang)循(xun)環利(li)用(yong)就(jiu)完成了制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)系統。
鑒于軸流風機有紊流區的性能特點,在選型和使用時,需要注意以下兩點:萬州防火閥建議使用在空曠環境中,軸流風機的輸入功率隨系統靜壓的增大而增大,而在紊流區,輸入功率的增大幅度會更大。因此,軸流風機一般多應用在有較大空曠環境的場合下,可以使其工作在靜壓較低的環境下,降低功耗,保證穩定性和壽命。防火閥價格定(ding)期(qi)清理(li)風(feng)(feng)(feng)(feng)道,當軸(zhou)流風(feng)(feng)(feng)(feng)機應用在較為封閉的風(feng)(feng)(feng)(feng)道系統中(zhong)時,長期(qi)運行后風(feng)(feng)(feng)(feng)道中(zhong)的積灰、垃圾逐(zhu)漸變多,會(hui)使風(feng)(feng)(feng)(feng)道內(nei)的靜壓逐(zhu)漸增加(jia),使得風(feng)(feng)(feng)(feng)機的運行工況點(dian)逐(zhu)漸左移。這不(bu)僅會(hui)降(jiang)低風(feng)(feng)(feng)(feng)機性(xing)能,更重要(yao)的是會(hui)增加(jia)軸(zhou)流風(feng)(feng)(feng)(feng)機進入(ru)紊流區的風(feng)(feng)(feng)(feng)險。因此必須要(yao)定(ding)期(qi)清理(li)風(feng)(feng)(feng)(feng)道,保證風(feng)(feng)(feng)(feng)機工況點(dian)不(bu)產生較大偏(pian)移。
1.冷(leng)(leng)(leng)(leng)(leng)(熱(re)(re))水機(ji)組(zu)(zu)的(de)(de)基本(ben)工作過程(cheng)是:室(shi)(shi)(shi)外(wai)的(de)(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)機(ji)組(zu)(zu)對(dui)冷(leng)(leng)(leng)(leng)(leng)(熱(re)(re))媒水進行制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)降溫(wen)(wen)(或加熱(re)(re)升(sheng)溫(wen)(wen)),然后由(you)水泵將(jiang)降溫(wen)(wen)后的(de)(de)冷(leng)(leng)(leng)(leng)(leng)媒(熱(re)(re))水輸(shu)送(song)(song)到(dao)安(an)(an)裝在室(shi)(shi)(shi)內(nei)的(de)(de)風(feng)(feng)機(ji)盤管(guan)(guan)(guan)(guan)機(ji)組(zu)(zu)中,由(you)風(feng)(feng)機(ji)盤管(guan)(guan)(guan)(guan)機(ji)組(zu)(zu)采取就(jiu)地(di)回風(feng)(feng)的(de)(de)方式與室(shi)(shi)(shi)內(nei)空(kong)氣(qi)進行熱(re)(re)交(jiao)換實現對(dui)室(shi)(shi)(shi)內(nei)空(kong)氣(qi)處理的(de)(de)目的(de)(de)。2.風(feng)(feng)管(guan)(guan)(guan)(guan)(道)式機(ji)組(zu)(zu)的(de)(de)基本(ben)工作過程(cheng)是:供冷(leng)(leng)(leng)(leng)(leng)時,室(shi)(shi)(shi)外(wai)的(de)(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)機(ji)組(zu)(zu)吸收來自(zi)室(shi)(shi)(shi)內(nei)機(ji)組(zu)(zu)的(de)(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)劑(ji)(ji)蒸氣(qi)經壓縮(suo)、冷(leng)(leng)(leng)(leng)(leng)凝后向(xiang)各室(shi)(shi)(shi)內(nei)機(ji)組(zu)(zu)輸(shu)送(song)(song)液體制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)劑(ji)(ji)。供熱(re)(re)時,室(shi)(shi)(shi)外(wai)的(de)(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)機(ji)組(zu)(zu)吸收來自(zi)冷(leng)(leng)(leng)(leng)(leng)凝器(qi)的(de)(de)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)劑(ji)(ji)蒸氣(qi)經壓縮(suo)后向(xiang)各室(shi)(shi)(shi)內(nei)機(ji)組(zu)(zu)輸(shu)送(song)(song)汽(qi)體制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)劑(ji)(ji),室(shi)(shi)(shi)內(nei)機(ji)組(zu)(zu)通(tong)(tong)過布置在天花(hua)板上(shang)(shang)的(de)(de)回風(feng)(feng)口將(jiang)空(kong)氣(qi)吸入(ru),進行熱(re)(re)交(jiao)換后送(song)(song)入(ru)安(an)(an)裝在室(shi)(shi)(shi)內(nei)各房(fang)間天花(hua)板中的(de)(de)風(feng)(feng)管(guan)(guan)(guan)(guan)(道)內(nei),并通(tong)(tong)過出風(feng)(feng)口上(shang)(shang)的(de)(de)散流器(qi)向(xiang)室(shi)(shi)(shi)內(nei)各房(fang)間輸(shu)送(song)(song)空(kong)氣(qi)。在風(feng)(feng)管(guan)(guan)(guan)(guan)(道)上(shang)(shang)設計有(you)新風(feng)(feng)門(men)和排風(feng)(feng)門(men),可以(yi)按(an)一定(ding)比例置換空(kong)氣(qi),以(yi)保證室(shi)(shi)(shi)內(nei)空(kong)氣(qi)的(de)(de)質(zhi)量。
1、想要(yao)讓(rang)排(pai)(pai)水(shui)(shui)(shui)管(guan)能(neng)夠很(hen)好(hao)的(de)(de)(de)排(pai)(pai)水(shui)(shui)(shui),我(wo)們(men)就(jiu)需(xu)要(yao)注意(yi)在安裝(zhuang)排(pai)(pai)水(shui)(shui)(shui)管(guan)的(de)(de)(de)時(shi)(shi)候,讓(rang)排(pai)(pai)水(shui)(shui)(shui)管(guan)能(neng)夠有一個(ge)輕(qing)微的(de)(de)(de)斜坡,這樣(yang)(yang)就(jiu)不(bu)會出(chu)(chu)現(xian)(xian)排(pai)(pai)水(shui)(shui)(shui)管(guan)有可能(neng)過(guo)高而出(chu)(chu)現(xian)(xian)當中央空調停止(zhi)工(gong)作時(shi)(shi),內(nei)機的(de)(de)(de)水(shui)(shui)(shui)會出(chu)(chu)現(xian)(xian)倒流的(de)(de)(de)情況(kuang),這樣(yang)(yang)就(jiu)會將吊頂泡壞。2、還需(xu)要(yao)注意(yi)的(de)(de)(de)是在安裝(zhuang)排(pai)(pai)水(shui)(shui)(shui)管(guan)的(de)(de)(de)時(shi)(shi)候要(yao)對排(pai)(pai)水(shui)(shui)(shui)管(guan)的(de)(de)(de)外部做一層保溫(wen)(wen)處理,如果不(bu)做保溫(wen)(wen),那么就(jiu)會在制冷時(shi)(shi)間長后,排(pai)(pai)水(shui)(shui)(shui)管(guan)的(de)(de)(de)表面會出(chu)(chu)現(xian)(xian)滴水(shui)(shui)(shui)的(de)(de)(de)情況(kuang),這樣(yang)(yang)對吊頂是有著一定的(de)(de)(de)損壞的(de)(de)(de)。所以(yi)要(yao)使用一些保溫(wen)(wen)材料,將排(pai)(pai)水(shui)(shui)(shui)管(guan)的(de)(de)(de)保溫(wen)(wen)做好(hao)。