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風機廣泛地應用于各個工業部門,一般講,離心式風機適用于小流量、高壓力的場所,而軸流式風機則常用于大流量、低壓力的情況,家用中央空調廠家應根據不同的情況選有不同的風機分類。1鍋爐用風機,鍋爐用風機根據鍋爐的規格可選用離心式或軸流式。又按家用中央空調它的(de)作用分為(wei)鍋(guo)(guo)(guo)爐(lu)風(feng)(feng)機(ji)—向鍋(guo)(guo)(guo)爐(lu)內(nei)輸送(song)空氣;鍋(guo)(guo)(guo)爐(lu)引(yin)風(feng)(feng)機(ji)把鍋(guo)(guo)(guo)爐(lu)內(nei)的(de)煙氣抽走。2通風(feng)(feng)換(huan)氣用風(feng)(feng)機(ji),這類風(feng)(feng)機(ji)一般是供工廠及各種建筑(zhu)物(wu)通風(feng)(feng)換(huan)氣及采暖通風(feng)(feng)用,要求壓(ya)力不高,但噪聲(sheng)要求要低,可采用離心(xin)式(shi)或軸流式(shi)風(feng)(feng)機(ji)。
在了解空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)壓(ya)(ya)(ya)(ya)縮(suo)機(ji)的(de)工作原理之(zhi)(zhi)前,先來(lai)認識(shi)下空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)壓(ya)(ya)(ya)(ya)縮(suo)機(ji)的(de)工作回路(lu)。空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)壓(ya)(ya)(ya)(ya)縮(suo)機(ji)的(de)工作回路(lu)分為蒸(zheng)發(fa)(fa)(fa)區(qu)(qu)和冷(leng)(leng)(leng)(leng)凝區(qu)(qu),空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)壓(ya)(ya)(ya)(ya)縮(suo)機(ji)在空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)制(zhi)冷(leng)(leng)(leng)(leng)劑回路(lu)中(zhong)(zhong)起(qi)壓(ya)(ya)(ya)(ya)縮(suo)驅動(dong)制(zhi)冷(leng)(leng)(leng)(leng)劑的(de)作用(yong)。空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)制(zhi)冷(leng)(leng)(leng)(leng)時(shi),中(zhong)(zhong)央空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)壓(ya)(ya)(ya)(ya)縮(suo)機(ji)把制(zhi)冷(leng)(leng)(leng)(leng)劑從低(di)壓(ya)(ya)(ya)(ya)區(qu)(qu)抽取來(lai)經(jing)(jing)(jing)緊(jin)縮(suo)后送到(dao)高壓(ya)(ya)(ya)(ya)區(qu)(qu)冷(leng)(leng)(leng)(leng)卻凝結,經(jing)(jing)(jing)過(guo)散熱(re)(re)片分發(fa)(fa)(fa)出熱(re)(re)量(liang)到(dao)空(kong)(kong)(kong)(kong)(kong)氣(qi)中(zhong)(zhong),制(zhi)冷(leng)(leng)(leng)(leng)劑也從氣(qi)態(tai)變成(cheng)液態(tai),壓(ya)(ya)(ya)(ya)力(li)(li)升高。制(zhi)冷(leng)(leng)(leng)(leng)劑再從高壓(ya)(ya)(ya)(ya)區(qu)(qu)流向低(di)壓(ya)(ya)(ya)(ya)區(qu)(qu),經(jing)(jing)(jing)過(guo)毛細管(guan)(guan)放(fang)射到(dao)蒸(zheng)發(fa)(fa)(fa)器中(zhong)(zhong),壓(ya)(ya)(ya)(ya)力(li)(li)驟降,液態(tai)制(zhi)冷(leng)(leng)(leng)(leng)劑立刻(ke)變成(cheng)氣(qi)態(tai),經(jing)(jing)(jing)過(guo)散熱(re)(re)片吸收(shou)空(kong)(kong)(kong)(kong)(kong)氣(qi)中(zhong)(zhong)大量(liang)的(de)熱(re)(re)量(liang)。這樣(yang)循(xun)環(huan)(huan)應用(yong)就完成(cheng)了制(zhi)冷(leng)(leng)(leng)(leng)系(xi)統(tong)。壓(ya)(ya)(ya)(ya)縮(suo)機(ji)通過(guo)節(jie)流裝置(zhi)節(jie)流之(zhi)(zhi)后,通入到(dao)蒸(zheng)發(fa)(fa)(fa)器中(zhong)(zhong),將所需要(yao)冷(leng)(leng)(leng)(leng)卻的(de)媒介冷(leng)(leng)(leng)(leng)卻換熱(re)(re)。例如將蒸(zheng)發(fa)(fa)(fa)器連接到(dao)樓里的(de)各個房間,蒸(zheng)發(fa)(fa)(fa)器內的(de)蛇行(xing)(xing)管(guan)(guan)將同空(kong)(kong)(kong)(kong)(kong)氣(qi)進行(xing)(xing)換熱(re)(re),再通過(guo)鼓風將冷(leng)(leng)(leng)(leng)氣(qi)吹向房間的(de)空(kong)(kong)(kong)(kong)(kong)氣(qi)當中(zhong)(zhong)。而蒸(zheng)發(fa)(fa)(fa)器蛇行(xing)(xing)管(guan)(guan)內的(de)冷(leng)(leng)(leng)(leng)凍劑換熱(re)(re)后變成(cheng)低(di)壓(ya)(ya)(ya)(ya)蒸(zheng)氣(qi)回到(dao)壓(ya)(ya)(ya)(ya)縮(suo)機(ji),再被壓(ya)(ya)(ya)(ya)縮(suo)機(ji)壓(ya)(ya)(ya)(ya)縮(suo),這樣(yang)循(xun)環(huan)(huan)利用(yong)就完成(cheng)了制(zhi)冷(leng)(leng)(leng)(leng)系(xi)統(tong)。
(1)防(fang)火(huo)(huo)(huo)閥(fa)使用及安(an)裝(zhuang)(zhuang)(zhuang)(zhuang)(a) 安(an)裝(zhuang)(zhuang)(zhuang)(zhuang)前(qian)必須(xu)檢查(cha)防(fang)火(huo)(huo)(huo)閥(fa)外觀質量、控制性能和閥(fa)門動作(zuo)(zuo),確認正常后配(pei)鉆法(fa)蘭連接孔。(b) 安(an)裝(zhuang)(zhuang)(zhuang)(zhuang)時(shi)(shi)防(fang)火(huo)(huo)(huo)閥(fa)的(de)方向位置應(ying)正確,熔(rong)斷器(qi)(易熔(rong)片(pian))應(ying)先于葉(xie)(xie)片(pian)軸接觸熱氣流(liu)(liu)(即位于葉(xie)(xie)片(pian)的(de)迎(ying)風(feng)側)。自(zi)重式(shi)防(fang)火(huo)(huo)(huo)閥(fa)要(yao)(yao)注意葉(xie)(xie)片(pian)的(de)上下(xia)(xia)方向氣流(liu)(liu)方向標志,不得(de)(de)(de)倒置。(c) 防(fang)火(huo)(huo)(huo)閥(fa)應(ying)牢靠(kao)地固定(ding)在設(she)定(ding)的(de)位置上,確保當發生火(huo)(huo)(huo)災時(shi)(shi)不致因管道變形(xing)下(xia)(xia)塌而影響(xiang)工作(zuo)(zuo)性能,必要(yao)(yao)時(shi)(shi)應(ying)設(she)吊架。(d) 具有風(feng)量調(diao)(diao)節功(gong)能的(de)防(fang)火(huo)(huo)(huo)閥(fa),應(ying)在調(diao)(diao)試過(guo)程中(zhong)調(diao)(diao)定(ding)閥(fa)門開(kai)度(du)。(e) 當設(she)計防(fang)火(huo)(huo)(huo)閥(fa)為吊頂安(an)裝(zhuang)(zhuang)(zhuang)(zhuang)或靠(kao)近墻(qiang)體(ti)(ti)安(an)裝(zhuang)(zhuang)(zhuang)(zhuang)時(shi)(shi),要(yao)(yao)保證防(fang)火(huo)(huo)(huo)閥(fa)周圍貿有足(zu)夠空間。(f) 安(an)裝(zhuang)(zhuang)(zhuang)(zhuang)防(fang)火(huo)(huo)(huo)閥(fa)后的(de)施工過(guo)程中(zhong),要(yao)(yao)注意不得(de)(de)(de)使閥(fa)體(ti)(ti)、操(cao)作(zuo)(zuo)裝(zhuang)(zhuang)(zhuang)(zhuang)置等受到損傷、變形(xing),以免影響(xiang)其(qi)工作(zuo)(zuo)性能(g) 安(an)裝(zhuang)(zhuang)(zhuang)(zhuang)后應(ying)對防(fang)火(huo)(huo)(huo)閥(fa)清掃檢查(cha),閥(fa)體(ti)(ti)內不得(de)(de)(de)有雜物(wu),并進行操(cao)作(zuo)(zuo)試驗,確保閥(fa)體(ti)(ti)正常工作(zuo)(zuo)。
層(ceng)(ceng)高(gao)過(guo)高(gao)如(ru)何提(ti)高(gao)制冷效果,解決方案(an)(an):較(jiao)之(zhi)于(yu)常(chang)規層(ceng)(ceng)高(gao)的(de)(de)(de)房屋(一(yi)(yi)(yi)般為(wei)(wei)2.6-2.7米左右(you))。別(bie)墅的(de)(de)(de)層(ceng)(ceng)高(gao)一(yi)(yi)(yi)般都為(wei)(wei)3米甚至以上(shang)的(de)(de)(de)高(gao)度。此前提(ti)下中(zhong)央空調(diao)制冷和采暖的(de)(de)(de)配(pei)比(bi)(bi)較(jiao)之(zhi)于(yu)一(yi)(yi)(yi)般層(ceng)(ceng)高(gao)的(de)(de)(de)房屋會更高(gao)。如(ru)一(yi)(yi)(yi)般平(ping)層(ceng)(ceng)的(de)(de)(de)配(pei)比(bi)(bi)為(wei)(wei)200w/平(ping)方。別(bie)墅為(wei)(wei)230-280w/平(ping)方。空調(diao)外(wai)機需要(yao)如(ru)何擺放較(jiao)為(wei)(wei)合(he)理(li),解決方案(an)(an):別(bie)墅由于(yu)面積較(jiao)大,較(jiao)之(zhi)于(yu)平(ping)層(ceng)(ceng)一(yi)(yi)(yi)般外(wai)機的(de)(de)(de)功率較(jiao)大。體積也(ye)就(jiu)較(jiao)之(zhi)平(ping)層(ceng)(ceng)會更大。一(yi)(yi)(yi)般的(de)(de)(de)擺放位(wei)置位(wei)于(yu)本身(shen)建筑的(de)(de)(de)自留機位(wei)或者位(wei)于(yu)門(men)口或者陽臺花園(yuan)的(de)(de)(de)平(ping)臺之(zhi)上(shang)。鋪設可供(gong)平(ping)衡的(de)(de)(de)水泥臺面即可。
防(fang)火(huo)閥(fa)(fa)(fa)是(shi)用來阻斷來自火(huo)災區的(de)(de)煙氣(qi)及火(huo)焰通(tong)過,并(bing)在一定時(shi)間(jian)內(nei)能滿足耐火(huo)穩定性和(he)耐火(huo)完整(zheng)性要(yao)求的(de)(de)閥(fa)(fa)(fa)門。為了將(jiang)火(huo)災引起的(de)(de)損失減少到小程度,就必(bi)須采取有效的(de)(de)防(fang)火(huo)、防(fang)排煙措施,以控(kong)(kong)制火(huo)勢蔓延,而(er)防(fang)火(huo)閥(fa)(fa)(fa)在通(tong)風、空(kong)調及防(fang)排煙系統(tong)中的(de)(de)合(he)(he)理設置,則起到了重要(yao)的(de)(de)作(zuo)用。防(fang)火(huo)閥(fa)(fa)(fa)的(de)(de)結構(gou)和(he)工作(zuo)原理,防(fang)火(huo)閥(fa)(fa)(fa)主要(yao)由(you)閥(fa)(fa)(fa)體和(he)執行(xing)機(ji)構(gou)組成(cheng)。閥(fa)(fa)(fa)體由(you)殼體、法(fa)蘭、葉(xie)(xie)片(pian)及葉(xie)(xie)片(pian)聯(lian)動(dong)機(ji)構(gou)等組成(cheng)。執行(xing)機(ji)構(gou)由(you)外殼、葉(xie)(xie)片(pian)調節機(ji)構(gou)、離合(he)(he)器(qi)、溫(wen)度熔斷器(qi)等組成(cheng)。防(fang)火(huo)閥(fa)(fa)(fa)的(de)(de)執行(xing)機(ji)構(gou)是(shi)通(tong)過金屬易熔片(pian)和(he)離合(he)(he)器(qi)機(ji)構(gou)來控(kong)(kong)制葉(xie)(xie)片(pian)的(de)(de)轉(zhuan)動(dong)。
防火(huo)(huo)(huo)閥:采用70℃溫度熔斷(duan)器自動(dong)關閉(防火(huo)(huo)(huo)).可(ke)輸(shu)出聯動(dong)訊號,用于通(tong)風(feng)空(kong)(kong)調系(xi)(xi)(xi)(xi)統(tong)風(feng)管內,防止火(huo)(huo)(huo)勢沿風(feng)管蔓延。排(pai)(pai)(pai)煙(yan)防火(huo)(huo)(huo)閥:電(dian)訊號開(kai)啟,手動(dong)開(kai)啟,輸(shu)出動(dong)作(zuo)電(dian)訊號.用于排(pai)(pai)(pai)煙(yan)風(feng)機吸入(ru)口管道或(huo)排(pai)(pai)(pai)煙(yan)支管上(shang)。采用280℃溫度熔斷(duan)器重新(xin)關閉。防火(huo)(huo)(huo)閥——通(tong)風(feng)空(kong)(kong)調系(xi)(xi)(xi)(xi)統(tong)70℃:風(feng)管穿越防火(huo)(huo)(huo)分區、隔(ge)墻樓板、水(shui)(shui)平風(feng)管的水(shui)(shui)平管段上(shang)(系(xi)(xi)(xi)(xi)統(tong)獨立(li)設(she)置可(ke)不設(she))、公共(gong)建(jian)筑豎向排(pai)(pai)(pai)風(feng)管支管;150℃:公共(gong)建(jian)筑廚房排(pai)(pai)(pai)油煙(yan)管支管;排(pai)(pai)(pai)煙(yan)防火(huo)(huo)(huo)閥——消防排(pai)(pai)(pai)煙(yan)系(xi)(xi)(xi)(xi)統(tong)280℃:消防排(pai)(pai)(pai)煙(yan)管道;