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風(feng)(feng)管(guan)(guan)主(zhu)要(yao)(yao)指中央空調系統(tong)的(de)(de)通(tong)風(feng)(feng)管(guan)(guan)道,它常(chang)常(chang)被忽(hu)視,但(dan)卻是空調系統(tong)的(de)(de)重(zhong)要(yao)(yao)組成部分,目前常(chang)見(jian)的(de)(de)風(feng)(feng)管(guan)(guan)主(zhu)要(yao)(yao)有四種:1)鍍(du)(du)鋅(xin)薄(bo)鋼(gang)(gang)板(ban)風(feng)(feng)管(guan)(guan);2)無(wu)機(ji)(ji)玻(bo)(bo)璃鋼(gang)(gang)風(feng)(feng)管(guan)(guan);3)復合(he)玻(bo)(bo)纖(xian)板(ban)風(feng)(feng)管(guan)(guan);4)纖(xian)維織物風(feng)(feng)管(guan)(guan)。鍍(du)(du)鋅(xin)薄(bo)鋼(gang)(gang)板(ban)風(feng)(feng)管(guan)(guan):早(zao)使(shi)用(yong)的(de)(de)風(feng)(feng)管(guan)(guan),采用(yong)鍍(du)(du)鋅(xin)薄(bo)鋼(gang)(gang)板(ban)制(zhi)作(zuo)(zuo),適(shi)合(he)含濕量小的(de)(de)一般性氣體的(de)(de)輸(shu)送,有易生(sheng)銹,無(wu)保溫(wen)(wen)和消(xiao)聲(sheng)功能,制(zhi)作(zuo)(zuo)安裝周期長的(de)(de)特點。無(wu)機(ji)(ji)玻(bo)(bo)璃鋼(gang)(gang)風(feng)(feng)管(guan)(guan):較新的(de)(de)風(feng)(feng)管(guan)(guan)類型,采用(yong)玻(bo)(bo)璃纖(xian)維增強(qiang)無(wu)機(ji)(ji)材料制(zhi)作(zuo)(zuo),遇(yu)火(huo)不燃、耐腐(fu)蝕、份量重(zhong),硬(ying)度大但(dan)較脆,受自重(zhong)影響易變形酥裂,無(wu)保溫(wen)(wen)和消(xiao)聲(sheng)性能,制(zhi)作(zuo)(zuo)安裝周期長。
1、消(xiao)聲(sheng)(sheng)(sheng)性(xing)能:鍍(du)鋅薄(bo)鋼(gang)(gang)板(ban)(ban)風(feng)管:無(wu)消(xiao)聲(sheng)(sheng)(sheng)性(xing)能,自(zi)身震動會(hui)產生聲(sheng)(sheng)(sheng)音(yin),必須加(jia)裝(zhuang)消(xiao)聲(sheng)(sheng)(sheng)器。無(wu)機(ji)(ji)玻(bo)(bo)璃(li)鋼(gang)(gang)風(feng)管:無(wu)消(xiao)聲(sheng)(sheng)(sheng)性(xing)能,隔聲(sheng)(sheng)(sheng)性(xing)能優于鍍(du)鋅薄(bo)鋼(gang)(gang)板(ban)(ban)風(feng)管,必須加(jia)裝(zhuang)消(xiao)聲(sheng)(sheng)(sheng)器。復(fu)合玻(bo)(bo)纖(xian)(xian)板(ban)(ban)風(feng)管:其管壁是(shi)一(yi)種多孔(kong)性(xing)吸聲(sheng)(sheng)(sheng)材料,可省去(qu)專用消(xiao)聲(sheng)(sheng)(sheng)器。纖(xian)(xian)維(wei)織物風(feng)管:其管壁為柔(rou)性(xing)纖(xian)(xian)維(wei)織物,本身就(jiu)是(shi)聲(sheng)(sheng)(sheng)音(yin)的(de)不(bu)良導(dao)(dao)體和吸收體,自(zi)身不(bu)會(hui)產生聲(sheng)(sheng)(sheng)音(yin),還可以一(yi)定程度上吸收設備(bei)噪(zao)聲(sheng)(sheng)(sheng),隨著管道的(de)延(yan)長,效果更(geng)為明顯(xian),可省去(qu)專用消(xiao)聲(sheng)(sheng)(sheng)器。2、保(bao)溫(wen)(wen)性(xing)能:鍍(du)鋅薄(bo)鋼(gang)(gang)板(ban)(ban)風(feng)管:導(dao)(dao)熱系數(shu)(shu)很大(da)(為60.4 W/m?K),無(wu)保(bao)溫(wen)(wen)性(xing)能,必須另外(wai)加(jia)包保(bao)溫(wen)(wen)層及保(bao)護(hu)層。無(wu)機(ji)(ji)玻(bo)(bo)璃(li)鋼(gang)(gang)風(feng)管:導(dao)(dao)熱系數(shu)(shu)大(da)(為0.5W/m?K),無(wu)保(bao)溫(wen)(wen)性(xing)能。復(fu)合玻(bo)(bo)纖(xian)(xian)板(ban)(ban)風(feng)管:導(dao)(dao)熱系數(shu)(shu)小(平均溫(wen)(wen)度24℃時小于1W/m?K),有一(yi)定保(bao)溫(wen)(wen)性(xing)能,不(bu)加(jia)裝(zhuang)保(bao)溫(wen)(wen)。
1) 送風,包括通氣,如送鮮風和排氣,這個范圍很廣,如工廠車間,生產場地空氣,由于有害氣體產生需要排出室外,又需要把通風管道室外空氣輸送至室內。這時就要使用流量大而壓力小的空氣輸送管道,螺旋風管就適用,黔江通風管道一般情況(kuang)下(xia)使(shi)用(yong)(yong)鍍鋅鐵(tie)管(guan)(guan)(guan)(guan),有(you)(you)腐蝕(shi)性及特別潮濕(shi)場(chang)所使(shi)用(yong)(yong)不(bu)銹鋼管(guan)(guan)(guan)(guan)。2) 送冷風。常見的(de)(de)是中央(yang)空(kong)調的(de)(de)管(guan)(guan)(guan)(guan)道(dao)(dao),這(zhe)種管(guan)(guan)(guan)(guan)道(dao)(dao)需(xu)要(yao)(yao)(yao)加保(bao)溫(wen)材(cai)料。螺旋風管(guan)(guan)(guan)(guan)可(ke)內貼(tie)保(bao)溫(wen)材(cai)料,外(wai)表看來美觀。3) 排油煙(yan)。飯店、酒樓、賓館(guan)的(de)(de)廚房均(jun)有(you)(you)大(da)(da)量油煙(yan)產生(sheng),需(xu)要(yao)(yao)(yao)排出,使(shi)用(yong)(yong)圓形的(de)(de)風管(guan)(guan)(guan)(guan)就是油煙(yan)囪。在這(zhe)里,螺旋風管(guan)(guan)(guan)(guan)該叫做油煙(yan)管(guan)(guan)(guan)(guan)。4) 除(chu)塵。有(you)(you)些工(gong)廠(chang)生(sheng)產車間很多(duo)塵埃,需(xu)要(yao)(yao)(yao)專(zhuan)門的(de)(de)除(chu)塵裝(zhuang)置,其中量較大(da)(da)的(de)(de)管(guan)(guan)(guan)(guan)道(dao)(dao),可(ke)使(shi)用(yong)(yong)螺旋風管(guan)(guan)(guan)(guan)。5) 散(san)裝(zhuang)物(wu)料輸送。有(you)(you)些工(gong)廠(chang)的(de)(de)生(sheng)產過程中,需(xu)要(yao)(yao)(yao)輸送松散(san)的(de)(de)顆粒(li),特別是比重不(bu)大(da)(da)的(de)(de)如發泡塑料粒(li)之(zhi)類的(de)(de)使(shi)用(yong)(yong)螺旋風管(guan)(guan)(guan)(guan)造價低、效果好。
它是近(jin)年新的風管管材(cai),以容(rong)重(zhong)64 kg / m3、厚度25 mm的離心玻纖板(ban)為(wei)基材(cai),內復玻璃絲(si)布,外復防(fang)潮鋁(lv)箔(bo)(bo)布(進口板(ban)材(cai)為(wei)內涂熱敏(min)(min)丙稀酸聚(ju)合物(wu),外層為(wei)稀紋布 / 鋁(lv)箔(bo)(bo) / 牛皮紙),用(yong)專用(yong)防(fang)火粘結(jie)劑復合干燥后,再經切(qie)割、開槽、粘結(jie)加固等工藝(yi)而制成(cheng),采用(yong)特種密封(feng)膠、壓敏(min)(min)膠帶(dai)、熱敏(min)(min)膠帶(dai)連接密封(feng),根據(ju)風管斷面尺寸、風壓大小再采取適(shi)當的加固措施(shi)(shi)。具有(you)消聲、保溫、防(fang)火、防(fang)潮、漏風量小、經濟適(shi)用(yong)等優(you)點(dian),材(cai)質輕,搬運(yun)吊掛容(rong)易,現(xian)場(chang)修改方便(bian)、易施(shi)(shi)工,組(zu)裝便(bian)捷(jie),需密封(feng)的連接點(dian)少,節省(sheng)安(an)裝空間,熱效(xiao)高,操(cao)作安(an)靜(jing),工作壽命長(chang),性能價格(ge)比優(you),綜合造價低,要防(fang)止被水長(chang)期浸(jin)泡。
1.冷(leng)(leng)(leng)(leng)(熱(re)(re))水機(ji)(ji)(ji)(ji)(ji)組(zu)的(de)(de)基本工(gong)作過(guo)程(cheng)是(shi):室(shi)外(wai)(wai)的(de)(de)制(zhi)冷(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)組(zu)對冷(leng)(leng)(leng)(leng)(熱(re)(re))媒水進(jin)行制(zhi)冷(leng)(leng)(leng)(leng)降溫(或加熱(re)(re)升溫),然后由水泵將(jiang)降溫后的(de)(de)冷(leng)(leng)(leng)(leng)媒(熱(re)(re))水輸送(song)(song)到安(an)裝在室(shi)內(nei)的(de)(de)風(feng)機(ji)(ji)(ji)(ji)(ji)盤管(guan)機(ji)(ji)(ji)(ji)(ji)組(zu)中(zhong),由風(feng)機(ji)(ji)(ji)(ji)(ji)盤管(guan)機(ji)(ji)(ji)(ji)(ji)組(zu)采取就地回風(feng)的(de)(de)方(fang)式(shi)與室(shi)內(nei)空(kong)氣(qi)(qi)進(jin)行熱(re)(re)交換(huan)實現對室(shi)內(nei)空(kong)氣(qi)(qi)處理的(de)(de)目的(de)(de)。2.風(feng)管(guan)(道(dao)(dao))式(shi)機(ji)(ji)(ji)(ji)(ji)組(zu)的(de)(de)基本工(gong)作過(guo)程(cheng)是(shi):供冷(leng)(leng)(leng)(leng)時,室(shi)外(wai)(wai)的(de)(de)制(zhi)冷(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)組(zu)吸收來自室(shi)內(nei)機(ji)(ji)(ji)(ji)(ji)組(zu)的(de)(de)制(zhi)冷(leng)(leng)(leng)(leng)劑(ji)蒸氣(qi)(qi)經壓縮、冷(leng)(leng)(leng)(leng)凝后向各室(shi)內(nei)機(ji)(ji)(ji)(ji)(ji)組(zu)輸送(song)(song)液體制(zhi)冷(leng)(leng)(leng)(leng)劑(ji)。供熱(re)(re)時,室(shi)外(wai)(wai)的(de)(de)制(zhi)冷(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)組(zu)吸收來自冷(leng)(leng)(leng)(leng)凝器的(de)(de)制(zhi)冷(leng)(leng)(leng)(leng)劑(ji)蒸氣(qi)(qi)經壓縮后向各室(shi)內(nei)機(ji)(ji)(ji)(ji)(ji)組(zu)輸送(song)(song)汽體制(zhi)冷(leng)(leng)(leng)(leng)劑(ji),室(shi)內(nei)機(ji)(ji)(ji)(ji)(ji)組(zu)通過(guo)布置在天花板上的(de)(de)回風(feng)口將(jiang)空(kong)氣(qi)(qi)吸入(ru),進(jin)行熱(re)(re)交換(huan)后送(song)(song)入(ru)安(an)裝在室(shi)內(nei)各房間天花板中(zhong)的(de)(de)風(feng)管(guan)(道(dao)(dao))內(nei),并通過(guo)出風(feng)口上的(de)(de)散(san)流器向室(shi)內(nei)各房間輸送(song)(song)空(kong)氣(qi)(qi)。在風(feng)管(guan)(道(dao)(dao))上設計有新風(feng)門(men)和排風(feng)門(men),可(ke)以(yi)按(an)一(yi)定比例置換(huan)空(kong)氣(qi)(qi),以(yi)保證室(shi)內(nei)空(kong)氣(qi)(qi)的(de)(de)質量。