廣(guang)東(dong)匯(hui)綠實(shi)驗室是(shi)一(yi)家專業(ye)的實(shi)驗室通風(feng)系統(tong)，實(shi)驗室氣路工程，通風(feng)系統(tong)安(an)裝設計公司。廣東匯綠(lv)實(shi)驗室集實(shi)驗室通風(feng)(feng)系統(tong)設計、通風(feng)(feng)工(gong)程、施工(gong)、改造及(ji)售后(hou)服務(wu)于(yu)一體，具備為教(jiao)研(yan)機(ji)構，醫(yi)療(liao)機(ji)構，檢驗檢疫，單(dan)位機(ji)構等行業實(shi)驗室配套各種(zhong)通風(feng)(feng)工(gong)程及(ji)通風(feng)(feng)系統(tong)的(de)設計、安(an)裝大型(xing)綜(zong)合類氣(qi)路系統(tong)設備的(de)能力。

　　實(shi)驗室(shi)(shi)通風系(xi)統(tong)與實(shi)驗室(shi)(shi)研(yan)發人員的(de)(de)安全有(you)著(zhu)非常緊密的(de)(de)關聯(lian)，需要所有(you)實(shi)驗室(shi)(shi)行業著(zhu)重重視(shi)。實(shi)驗室(shi)(shi)內合理的(de)(de)通風，氣(qi)流組織(zhi)和(he)房間之間有(you)序的(de)(de)壓力梯度(du)，并通過合理設置個(ge)人的(de)(de)保護設施、安裝可(ke)靠的(de)(de)實(shi)驗設備(實(shi)驗室(shi)(shi)排風柜、實(shi)驗室(shi)(shi)生物(wu)安全柜等)及可(ke)靠的(de)(de)通風控(kong)制系(xi)統(tong)來共同(tong)保證的(de)(de)。

　　廣東匯綠實驗室(shi)(shi)作為國內(nei)最知名的實驗室(shi)(shi)VAV變風(feng)量控制(zhi)系(xi)(xi)統的技(ji)術(shu)引領者，是一家專業(ye)的實驗室(shi)(shi)通風(feng)系(xi)(xi)統，實驗室(shi)(shi)通風(feng)工(gong)程(cheng)，通風(feng)系(xi)(xi)統設(she)計，通風(feng)工(gong)程(cheng)公(gong)司，并從事各類(lei)通風(feng)設(she)備(bei)，通風(feng)系(xi)(xi)統設(she)計、研究開發的高(gao)新科技(ji)企業(ye)。

　　廣東匯綠實(shi)驗(yan)室(shi)(shi)集實(shi)驗(yan)室(shi)(shi)通(tong)風系(xi)統、通(tong)風工(gong)程、施(shi)工(gong)、改造及售(shou)后服務于一體，具備(bei)為教研(yan)機構，醫療機構，檢驗(yan)檢疫，單位機構等行(xing)業實(shi)驗(yan)室(shi)(shi)配套各種通(tong)風工(gong)程及產品的(de)設計(ji)、安裝(zhuang)大型綜合類通(tong)風系(xi)統工(gong)程設備(bei)的(de)能力。

　　實驗室(shi)通(tong)風(feng)系統詳解：

　　一、 實驗室通風系統(tong)的基(ji)本概念

　　1、 實驗室(shi)通風(feng)和通風(feng)柜的(de)概(gai)念：所謂通風(feng)，就是把室(shi)內(nei)的(de)污濁(zhuo)空(kong)氣(qi)直接或經(jing)凈化后排(pai)(pai)(pai)至室(shi)外把新鮮空(kong)氣(qi)補充進(jin)來，從而(er)保(bao)持室(shi)內(nei)的(de)空(kong)氣(qi)條(tiao)件，以保(bao)持衛生標(biao)準(zhun)和滿足生產工藝的(de)要求，我們把前者稱為(wei)排(pai)(pai)(pai)風(feng)，后者稱為(wei)送(song)風(feng)。而(er)通風(feng)柜可以簡單(dan)理解成一個(ge) 箱體和一個(ge)風(feng)機，產生于箱體中(zhong)(zhong)的(de)氣(qi)體被風(feng)機排(pai)(pai)(pai)出并被安(an)全(quan)的(de)排(pai)(pai)(pai)放到大(da)氣(qi)中(zhong)(zhong)。

　　2、 實驗室(shi)通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)的(de)(de)分類：按(an)照(zhao)動力不同，通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)系統可以(yi)分為自然(ran)通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)和機械通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)，機械通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)又可以(yi)分為全面通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)和局部(bu)(bu)通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)，全面通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)是指在(zai)房間(jian)內整體(ti)的(de)(de)進行通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)換氣的(de)(de) 一(yi)種方式(shi)，局部(bu)(bu)通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)是指通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)的(de)(de)范圍控(kong)制在(zai)有害物質形(xing)成比(bi)較集中(zhong)的(de)(de)地方，或是工 作(zuo)人員經常活動的(de)(de)局部(bu)(bu)地區(qu)的(de)(de)通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)方式(shi)，例如通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)柜、萬向排煙罩、原子吸(xi)收(shou)罩等。

　　3、 實驗(yan)室(shi)通(tong)風系統：通(tong)風系統工(gong)程(cheng)是研究控制實驗(yan)室(shi)有(you)害物質對室(shi)內外空氣環(huan)境的(de)影響和破壞的(de)技術。

　　二、實(shi)驗室通風系統的(de)基本組成

　　1、通風末端設備：主要包括通風柜、萬向(xiang)排煙罩(zhao)、原子吸收罩(zhao)、吹吸式(shi)排風罩(zhao)等。

　　2、通風管(guan)(guan)路系統：主(zhu)要有(you)風機、風管(guan)(guan)、風閥、消聲器、廢氣處理塔(ta)等(deng)。

　　三、實驗(yan)室通風系統設(she)計參數

　　1、對(dui)于客戶要求對(dui)實(shi)驗室進行通(tong)(tong)風(feng)(feng)設計的(de)(de)，通(tong)(tong)風(feng)(feng)換氣量(liang)可根(gen)據(ju)房(fang)(fang)(fang)間(jian)(jian)的(de)(de)換氣次(ci)(ci)(ci)數(shu)來確(que)定，實(shi)驗室的(de)(de)換氣次(ci)(ci)(ci)數(shu)取每(mei)小時 10-12 次(ci)(ci)(ci)，特(te)殊情況(kuang)可以相應增大(da)。[房(fang)(fang)(fang)間(jian)(jian) 通(tong)(tong)風(feng)(feng)一般選擇 500×500 的(de)(de)鐵(tie)皮(pi)罩作為通(tong)(tong)風(feng)(feng)末端設備，每(mei)個通(tong)(tong)風(feng)(feng)罩通(tong)(tong)風(feng)(feng)量(liang)可達到(dao) 600m3/h，房(fang)(fang)(fang)間(jian)(jian)的(de)(de)長(chang)×寬×高×10(換氣次(ci)(ci)(ci)數(shu))=房(fang)(fang)(fang)間(jian)(jian)每(mei)小時的(de)(de)通(tong)(tong)風(feng)(feng)量(liang)，然后房(fang)(fang)(fang)間(jian)(jian)每(mei)小時的(de)(de)通(tong)(tong)風(feng)(feng)量(liang)除以600來確(que)定通(tong)(tong)風(feng)(feng)罩的(de)(de)數(shu)量(liang)，支(zhi)、干管風(feng)(feng)速按照6m/s 計算]。

　　2、通風(feng)(feng)柜支管(guan)(guan)風(feng)(feng)速為 6-10m/s(計算時一般選擇(ze) 10m/s)，特殊(shu)情況可超(chao)過 10m/s，但不宜超(chao)過12m/s;干管(guan)(guan)風(feng)(feng)速為 10-14m/s(計算時一般選擇(ze) 10m/s，如果管(guan)(guan)道比較長選擇(ze) 12m/s，如果風(feng)(feng)量大選擇(ze) 14m/s)。

　　3、通(tong)(tong)風(feng)柜(ju)面風(feng)速(su)一般控制在 0.375-0.75m/s之(zhi)間，驗收標準一般取0.5m/s，最佳面風(feng)速(su)為 0.508m/s。(測(ce)量面風(feng)速(su)時，一般將拉(la)門拉(la)至5cm 高(gao)度(du)測(ce)量，風(feng)速(su)達到 0.3-0.5 m/s 即算合格，如果拉(la)門高(gao)度(du)過大時，測(ce)量拉(la)門下方 5cm 高(gao)度(du)處風(feng)速(su)，也可合格)。通(tong)(tong)風(feng)柜(ju)的危險(xian)等級平(ping)均(jun)面風(feng)速(su)(m/s)最低面風(feng)速(su)(m/s)備注：高(gao)0.622-0.75m/s 0.5m/s;中0.5m/s 0.4 m/s;低0.375-0.4m/s 0.25m/s。

　　4、室(shi)外(wai)(wai)噪(zao)(zao)聲(sheng)(sheng)(sheng)應(ying)控(kong)制在(zai) 70dB(A)，實(shi)驗(yan)室(shi)內(nei)噪(zao)(zao)聲(sheng)(sheng)(sheng)應(ying)控(kong)制在(zai) 55dB(A)，(室(shi)內(nei)噪(zao)(zao)聲(sheng)(sheng)(sheng) GB60 分貝(bei)超標，室(shi)外(wai)(wai)噪(zao)(zao)音大約為 75 分貝(bei))。風(feng)(feng)機(ji)的(de)噪(zao)(zao)聲(sheng)(sheng)(sheng)可以分為本身的(de)機(ji)械噪(zao)(zao)聲(sheng)(sheng)(sheng)(此噪(zao)(zao)聲(sheng)(sheng)(sheng)主(zhu)要由風(feng)(feng)扇質量(liang)不同引起)和(he)風(feng)(feng)聲(sheng)(sheng)(sheng)(為主(zhu)要噪(zao)(zao)聲(sheng)(sheng)(sheng))。在(zai)風(feng)(feng)機(ji)功(gong)率(lv)不大的(de)情況下，可通(tong)過在(zai)風(feng)(feng)機(ji)上方(fang)加防(fang)雨(yu)罩來消(xiao)除風(feng)(feng)聲(sheng)(sheng)(sheng)，在(zai)使用大功(gong)率(lv)風(feng)(feng)機(ji)時一般在(zai)風(feng)(feng)機(ji)進(jin)出(chu)口加消(xiao)聲(sheng)(sheng)(sheng)器(qi)來消(xiao)除風(feng)(feng)聲(sheng)(sheng)(sheng)，機(ji)械噪(zao)(zao)聲(sheng)(sheng)(sheng)主(zhu)要靠建隔音墻(qiang)、小(xiao)黑屋或(huo)在(zai)風(feng)(feng)機(ji)進(jin)出(chu)口加軟 接頭來解決。減(jian)(jian)振(zhen)的(de)主(zhu)要方(fang)法(fa)為風(feng)(feng)機(ji)底座做(zuo)成減(jian)(jian)振(zhen)底座并安(an)裝減(jian)(jian)振(zhen)器(qi)或(huo)加裝減(jian)(jian)振(zhen)墊。

　　5、通(tong)風(feng)(feng)量(Q)=表(biao)面(mian)風(feng)(feng)速(su)(vs)×排毒柜(ju)(ju)開(kai)口(kou)面(mian)積。電子(zi)調風(feng)(feng)閥的作(zuo)用是(shi)通(tong)過調節(jie)每臺(tai)通(tong)風(feng)(feng)柜(ju)(ju)的風(feng)(feng)管半徑來調節(jie)每臺(tai)通(tong)風(feng)(feng)柜(ju)(ju)的通(tong)風(feng)(feng)量，來達到當(dang)通(tong)風(feng)(feng)柜(ju)(ju)開(kai)口(kou)面(mian)積變化時(shi)保持表(biao)面(mian)風(feng)(feng)速(su)不變。

　　6、排風(feng)(feng)(feng)(feng)(feng)量(liang)(liang)(Q)=表面風(feng)(feng)(feng)(feng)(feng)速(vs)×排毒柜開(kai)口面積。變頻系(xi)(xi)統(tong)的(de)(de)作用是改(gai)變風(feng)(feng)(feng)(feng)(feng)機的(de)(de)轉(zhuan)速來改(gai)變風(feng)(feng)(feng)(feng)(feng)機的(de)(de)通風(feng)(feng)(feng)(feng)(feng)量(liang)(liang)，當一(yi)套(tao)通風(feng)(feng)(feng)(feng)(feng)系(xi)(xi)統(tong)中(zhong)只(zhi)有少量(liang)(liang)幾(ji)(ji)臺通風(feng)(feng)(feng)(feng)(feng)柜工作時(shi)(shi)，變頻系(xi)(xi)統(tong)自動(dong)調(diao)節(jie)(jie)風(feng)(feng)(feng)(feng)(feng)機的(de)(de)轉(zhuan)速，從(cong)而(er)改(gai)變風(feng)(feng)(feng)(feng)(feng)機的(de)(de)通風(feng)(feng)(feng)(feng)(feng)量(liang)(liang)，從(cong)而(er)保證(zheng)通風(feng)(feng)(feng)(feng)(feng)柜的(de)(de)面風(feng)(feng)(feng)(feng)(feng)速恒定。變頻系(xi)(xi)統(tong)和(he)調(diao)風(feng)(feng)(feng)(feng)(feng)閥的(de)(de)作用類似，但如果只(zhi)使用調(diao)風(feng)(feng)(feng)(feng)(feng)閥，則當一(yi)套(tao)通風(feng)(feng)(feng)(feng)(feng)系(xi)(xi)統(tong)中(zhong)只(zhi)有少量(liang)(liang)幾(ji)(ji)臺通風(feng)(feng)(feng)(feng)(feng)柜工作時(shi)(shi)，風(feng)(feng)(feng)(feng)(feng)機仍然以最高轉(zhuan)速工作，而(er)使用變頻系(xi)(xi)統(tong)后，調(diao)整風(feng)(feng)(feng)(feng)(feng)機轉(zhuan) 速可(ke)節(jie)(jie)省能(neng)源。

　　四、實驗(yan)室通(tong)風工程管路設計(ji)

　　1、先根(gen)據平面圖確(que)定每(mei)個系(xi)統(tong)(tong)包(bao)括多少通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)柜(ju)，再根(gen)據每(mei)個系(xi)統(tong)(tong)包(bao)括通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng) 柜(ju)的數 量(liang)確(que)定本(ben)系(xi)統(tong)(tong)的大致(zhi)通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)量(liang)(每(mei)臺1200mm的通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)柜(ju)設(she)計(ji)(ji)(ji)風(feng)(feng)(feng)(feng)(feng)(feng)量(liang)為(wei)1300m3/h，每(mei)臺1500mm的通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)柜(ju)設(she)計(ji)(ji)(ji)風(feng)(feng)(feng)(feng)(feng)(feng)量(liang)為(wei) 1700m3/h，每(mei)臺1800mm的通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)柜(ju)設(she)計(ji)(ji)(ji)風(feng)(feng)(feng)(feng)(feng)(feng)量(liang)為(wei)2100m3/h，每(mei)臺原子(zi)吸收罩的設(she)計(ji)(ji)(ji)風(feng)(feng)(feng)(feng)(feng)(feng)量(liang)為(wei)600m3/h，每(mei)臺萬向排煙罩的設(she)計(ji)(ji)(ji)風(feng)(feng)(feng)(feng)(feng)(feng)量(liang)為(wei)250或300m3/h)，然后(hou)選擇通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)量(liang)稍(shao)大于系(xi)統(tong)(tong)通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)量(liang)的風(feng)(feng)(feng)(feng)(feng)(feng)機。

　　2、計(ji)算通風過程(cheng) 中(zhong)損(sun)失(shi)(shi)的(de)壓力：單臺排毒柜(ju)系(xi)統(tong)阻(zu)力約 80-100Pa，一般 1m 的(de)管(guan)(guan)道損(sun)失(shi)(shi) 5-6Pa，一個彎頭損(sun)失(shi)(shi) 40-50Pa，風機出(chu)口和抽風口各損(sun)失(shi)(shi) 60Pa，消聲 器(qi)損(sun)失(shi)(shi) 50Pa，然(ran)后根(gen)據所(suo)計(ji)算出(chu)的(de)風機的(de)通風量(liang)和壓力在(zai)圖表曲(qu)線中(zhong)選(xuan)擇合適(shi)的(de)風 機(在(zai)計(ji)算過程(cheng)中(zhong)只計(ji)算最遠端通風柜(ju)的(de)壓差，然(ran)后留(liu) 200-300Pa 的(de)余量(liang))。 3、然(ran)后根(gen)據通風量(liang)=風管(guan)(guan)截(jie)面×管(guan)(guan)內風速來計(ji)算風管(guan)(guan)半徑(支管(guan)(guan)根(gen)據通風柜(ju) 尺 寸選(xuan)擇 315mm)

　　廣東匯綠(lv)實驗(yan)室嚴(yan)格遵守實驗(yan)室通(tong)(tong)(tong)風(feng)系統工程(cheng)(cheng)標準要(yao)求(qiu)，《通(tong)(tong)(tong)風(feng)與空(kong)調(diao)工程(cheng)(cheng)施(shi)工質(zhi)量(liang)驗(yan)收規范(fan)》(GB50243-2002);《簡明通(tong)(tong)(tong)風(feng)設計手冊》;《暖(nuan)衛、通(tong)(tong)(tong)風(feng)、空(kong)調(diao)技(ji)術手冊》;《城市區域環境噪聲排放(fang)標準》;《機(ji)(ji)械工業環境保護設計規范(fan)》(JBJ 16-2000);《中華人民共和(he)國機(ji)(ji)械行(xing)業通(tong)(tong)(tong)風(feng)柜標準》;行(xing)業相關資料及(ji)甲方提供(gong)資料與要(yao)求(qiu)。

　　實驗(yan)室環(huan)境(jing)正經(jing)歷一場(chang)前所未有的(de)變革(ge)，我們的(de)使命是致力于幫助客戶實現更健康、更清潔、更安全(quan)、更智能的(de)實驗(yan)室環(huan)境(jing)!