注意:超淨工作台(cleanbench)與生物安全櫃(Biosafety Cabinet)不同。
超淨工作台隻能保護在工作台內操作的試劑等不受汙染,並不保護工作人員,而生物安全櫃是負壓係統,能有效保護工作人員。
其工作原理為
tongguofengjijiangkongqixiruyuguolvqi,jingyoujingyaxiangjinrugaoxiaoguolvqiguolv,jiangguolvhoudekongqiyichuizhihuoshuipingqiliudezhuangtaisongchu,shicaozuoquyudadaobaijijiejingdu,baozhengshengchanduihuanjingjiejingdudeyaoqiu。chaojinggongzuotaigenjuqiliudefangxiangfenweichuizhiliuchaojinggongzuotaiheshuipingliuchaojinggongzuotai,genjucaozuojiegoufenweidanbiancaozuojishuangbiancaozuoliangzhongxingshi,anqiyongtuyoukefenweiputongchaojinggongzuotaiheshengwu(醫藥)超淨工作台。
1、工作原理
超chao淨jing工gong作zuo台tai原yuan理li是shi在zai在zai特te定ding的de空kong間jian內nei,室shi內nei空kong氣qi經jing預yu過guo濾lv器qi初chu濾lv,由you小xiao型xing離li心xin風feng機ji壓ya入ru靜jing壓ya箱xiang,再zai經jing空kong氣qi高gao效xiao過guo濾lv器qi二er級ji過guo濾lv,從cong空kong氣qi高gao效xiao過guo濾lv器qi出chu風feng麵mian吹chui出chu的de潔jie淨jing氣qi流liu具ju有you一yi定ding的de和he均jun勻yun的de斷duan麵mian風feng速su,可ke以yi排pai除chu工gong作zuo區qu原yuan來lai的de空kong氣qi,將jiang塵chen埃ai顆ke粒li和he生sheng物wu顆ke粒li帶dai走zou,以yi形xing成cheng無wu菌jun的de高gao潔jie淨jing的de工gong作zuo環huan境jing。
2、產品分類從氣流流向分為:垂直流超淨工作台和水平流超淨工作台;超淨工作台從操作人員數上分:分為單人工作台和雙人工作台;超淨工作台從結構上分:分為常規型和新型推拉以及自循環型(僅限垂直流)。
超淨工作台根據氣流的方向分為垂直流超淨工作台(vertical flow clean bench)和水平流超淨工作台(horizontalflowclean bench),垂直流工作台由於風機在頂部所以噪音較大但是風垂直吹多用在醫藥工程這樣保證人的身體健康;水shui平ping流liu工gong作zuo台tai噪zao音yin比bi較jiao小xiao風feng向xiang往wang外wai所suo以yi多duo用yong在zai電dian子zi行xing業ye,對dui身shen體ti健jian康kang影ying響xiang不bu大da。根gen據ju操cao作zuo結jie構gou分fen為wei單dan邊bian操cao作zuo及ji雙shuang邊bian操cao作zuo兩liang種zhong形xing式shi,按an其qi用yong途tu又you可ke分fen為wei普pu通tong超chao淨jing工gong作zuo台tai和he生sheng物wu(醫藥)超淨工作台。
3、注意事項
超淨台電源多采用三相四線,其中有一零線,連通機器外殼,應接牢在地線上,另外三線都是相線,工作電壓是380V。三線接入電路中有一定的順序,如線頭接錯了,風機會反轉,這時聲音正常或稍不正常,超淨台正麵無風(可用酒精燈火焰觀察動靜,不宜久試),yingjishiqieduandianyuan,zhijiangqizhongrenheliangxiangdexiantoujiaohuanyixiaweizhizaijieshang,jiukejiejue。sanxiangxianruzhijieruliangxiang,huosanxiangzhongyouyixiangjiechubuliang,zejiqishengyinhenbuzhengchang,yinglijiqieduandianyuanzaixijianxiu,fouzehuishaohuidianji。zhexiechangshiyingzaikaishishiyongchaojingtaishijiuxianggongzuorenyuanjiangjieqingchu,mianchubuyingzaochengshiguyusunshi。
超淨台進風口在背麵或正麵的下方,金屬網罩內有一普通泡沫塑料片或無紡布,用以阻攔大顆粒塵埃,應常檢查、拆chai洗xi,如ru發fa泡pao沫mo塑su料liao老lao化hua,及ji時shi更geng換huan。除chu進jin風feng口kou以yi外wai,如ru有you漏lou氣qi孔kong隙xi,應ying當dang堵du嚴yan,如ru貼tie膠jiao布bu,塞sai棉mian花hua,貼tie膠jiao水shui紙zhi等deng。工gong作zuo台tai正zheng麵mian的de金jin屬shu網wang罩zhao內nei是shi超chao級ji濾lv清qing器qi,超chao級ji濾lv清qing器qi也ye可ke更geng換huan,如ru使shi用yong年nian久jiu,塵chen粒li堵du塞sai,風feng速su減jian小xiao,不bu能neng保bao證zheng無wu菌jun操cao作zuo時shi,則ze可ke換huan上shang新xin的de。
超(chao)淨(jing)台(tai)使(shi)用(yong)壽(shou)命(ming)的(de)長(chang)短(duan)與(yu)空(kong)氣(qi)的(de)潔(jie)淨(jing)度(du)有(you)。在(zai)溫(wen)帶(dai)地(di)區(qu)超(chao)淨(jing)台(tai)可(ke)在(zai)一(yi)般(ban)實(shi)驗(yan)室(shi)使(shi)用(yong),然(ran)而(er)在(zai)熱(re)帶(dai)或(huo)亞(ya)熱(re)帶(dai)地(di)區(qu),由(you)大(da)氣(qi)中(zhong)含(han)有(you)量(liang)的(de)花(hua)粉(fen),或(huo)多(duo)粉(fen)塵(chen)的(de)地(di)區(qu),超(chao)淨(jing)台(tai)則(ze)宜(yi)放(fang)在(zai)較(jiao)好(hao)的(de)有(you)雙(shuang)道(dao)門(men)的(de)室(shi)內(nei)使(shi)用(yong)。任(ren)何(he)情(qing)下(xia)不(bu)應(ying)將(jiang)超(chao)淨(jing)台(tai)的(de)進(jin)風(feng)罩(zhao)對(dui)著(zhe)開(kai)敞(chang)的(de)門(men)或(huo)窗(chuang),以(yi)免(mian)影(ying)響(xiang)濾(lv)清(qing)器(qi)的(de)使(shi)用(yong)壽(shou)命(ming)。
無菌室應定期用70%酒精或0.5%苯酚噴霧降塵和消毒,用2%新潔爾滅抹拭台麵和用具(70%酒精也可),用福爾馬林(40%甲醛)加少量**鉀定期密閉熏蒸,配合紫外線滅菌燈(每次開啟15分鍾以上)等等消毒滅菌手段,以使無菌室經常保持度的無菌狀。接種箱內部也應裝有紫外線燈,使用前開燈15fenzhongyishangzhaoshemiejun,danfanshizhaoshebudaozhichurengshiyoujunde。zaiziwaixiandengkaiqishijianjiaochangshi,kejifakongqizhongdeyangfenzidihechengchouyangfenzi,zhezhongqifenyouhenqiangdeshajunzuoyong,keyiduiziwaixianmeiyouzhijiezhaodaodejiaoluochanshengmiejunxiaoguo。youyuchouyangyouaijiankang,zaijinrucaozuozhiqianyingxiandiaoziwaixiandeng,houshiduofenzhongjikerunei。
zaichaojinggongzuotaishangyikediaozhuangziwaixiandeng,danyingzhuangzaizhaomingdengzhaozhiwai,bingcuokaizhaomingdengdepailie,zheyangzaigongzuoshibufangaizhaoming。ruojiangziwaixiandengzhuangruzhaomingdengzhao(玻璃板)裏麵,這是毫無用處的,為紫外線不能穿透玻璃,它的燈管是石英玻璃,而不是矽酸鹽玻璃的。
接jie種zhong室shi內nei力li求qiu簡jian潔jie,凡fan與yu本ben室shi工gong作zuo無wu直zhi接jie關guan係xi的de物wu品pin一yi律lv不bu能neng放fang入ru,以yi保bao持chi無wu菌jun狀zhuang。接jie種zhong室shi內nei的de空kong氣qi與yu外wai界jie空kong氣qi應ying絕jue對dui隔ge絕jue,預yu留liu的de通tong氣qi孔kong道dao應ying盡jin量liang密mi閉bi。通tong氣qi孔kong道dao可ke設she上shang下xia氣qi窗chuang,氣qi窗chuang麵mian積ji宜yi稍shao大da,需xu覆fu上shang4層ceng紗sha布bu作zuo簡jian單dan濾lv塵chen。在zai一yi天tian工gong作zuo之zhi後hou,可ke開kai窗chuang充chong分fen換huan氣qi,然ran後hou再zai予yu以yi密mi閉bi。總zong之zhi,既ji清qing潔jie無wu塵chen無wu菌jun,又you空kong氣qi新xin鮮xian,適shi宜yi工gong作zuo。覆fu在zai通tong氣qi窗chuang上shang的de紗sha布bu應ying經jing常chang換huan洗xi。但dan是shi上shang述shu種zhong種zhong措cuo施shi隻zhi是shi理li想xiang的de設she計ji方fang案an,往wang往wang不bu易yi全quan麵mian做zuo到dao,其qi實shi隻zhi嚴yan格ge無wu菌jun操cao作zuo手shou續xu,在zai門men窗chuang敞chang開kai的de室shi內nei,有you一yi超chao淨jing台tai的de保bao護hu,接jie種zhong的de汙wu染ran率lv仍reng可ke控kong在zai生sheng產chan上shang可ke以yi容rong忍ren的de水shui準zhun。
4、日常維護要點
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