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技術文章

實驗室知識

2021-02-10 11:01:33

  1、實驗裝備的原則

  實(shi)(shi)(shi)驗(yan)室裝(zhuang)備包含有無錫通風(feng)櫥(chu)、通風(feng)櫥(chu)、無錫通風(feng)柜、實(shi)(shi)(shi)驗(yan)臺、儀器櫥(chu)、通風(feng)柜等。實(shi)(shi)(shi)驗(yan)室家(jia)具應當是(shi)色(se)澤美觀、平穩牢固(gu)、結實(shi)(shi)(shi)耐(nai)用、開啟靈(ling)活。這些實(shi)(shi)(shi)驗(yan)室裝(zhuang)備的質(zhi)量(liang)主要(yao)取(qu)決(jue)于家(jia)具使用的材料、加工工藝和安裝(zhuang)。

  目前實(shi)驗室(shi)家具材(cai)(cai)料有飾(shi)面(mian)刨(bao)(bao)花板(ban)(ban)(ban)、鋼化玻璃面(mian)板(ban)(ban)(ban)、實(shi)芯理(li)化板(ban)(ban)(ban)和玻璃鋼面(mian)板(ban)(ban)(ban)。飾(shi)面(mian)刨(bao)(bao)花板(ban)(ban)(ban)是使(shi)用最多的(de)材(cai)(cai)料,刨(bao)(bao)花板(ban)(ban)(ban)使(shi)用比較細的(de)木(mu)纖維又稱(cheng)為(wei)中(zhong)密板(ban)(ban)(ban)或(huo)高密板(ban)(ban)(ban)。一(yi)般(ban)在臺(tai)面(mian)使(shi)用實(shi)芯理(li)化板(ban)(ban)(ban)或(huo)以中(zhong)度板(ban)(ban)(ban)為(wei)內芯的(de)貼(tie)面(mian)臺(tai)面(mian),強度比較大,色澤均勻明快,平整光滑,堅硬耐磨,不應(ying)出現鼓包。化學飾(shi)面(mian)板(ban)(ban)(ban)有很好的(de)防酸堿性能。化學飾(shi)面(mian)板(ban)(ban)(ban)有具體(ti)(ti)(ti)的(de)理(li)化指標。柜(ju)體(ti)(ti)(ti)都采用三聚(ju)氫胺飾(shi)面(mian)板(ban)(ban)(ban)、有害氣體(ti)(ti)(ti)的(de)釋(shi)放量應(ying)符(fu)合國家的(de)有關標準(本公(gong)司對(dui)貴(gui)單位(wei)的(de)設備選擇見產品清單和詳細材(cai)(cai)質說明)。

  2、對通風(feng)的要求

  通(tong)風(feng)(feng)櫥新建和(he)改造化(hua)學實驗室要(yao)求通(tong)風(feng)(feng)到室,通(tong)風(feng)(feng)到櫥。縱觀(guan)實驗室墻(qiang)體(ti),覺(jue)得開窗換(huan)氣不大現實,需(xu)要(yao)在每(mei)(mei)個房間(jian)設(she)置換(huan)氣扇,室內二(er)氧化(hua)碳的(de)含量要(yao)低(di)于(yu)1.5%。無錫通(tong)風(feng)(feng)柜的(de)主要(yao)目的(de)是要(yao)把實驗產生的(de)毒氣立(li)即排(pai)出,主要(yao)考慮排(pai)風(feng)(feng)口(kou)的(de)風(feng)(feng)速,我方(fang)建議采和(he)斜流風(feng)(feng)機(BXG-2.8F)和(he)D250玻璃鋼管道,每(mei)(mei)小時排(pai)風(feng)(feng)量達到2000m3,要(yao)保證藥品毒氣的(de)順利(li)持續排(pai)出。

  化(hua)學實驗(yan)室換(huan)氣(qi)按每(mei)小時換(huan)氣(qi)20次標準要(yao)求(qiu)(qiu),需在在每(mei)個(ge)房間安裝1個(ge)換(huan)氣(qi)扇。理(li)化(hua)實驗(yan)室和理(li)化(hua)前處理(li)室安裝2個(ge)換(huan)氣(qi)扇,每(mei)個(ge)換(huan)氣(qi)扇的(de)功率(lv)要(yao)符合房間換(huan)氣(qi)要(yao)求(qiu)(qiu),即每(mei)小時風流量達(da)到(dao)20次.

  3、對實驗室電路的要求

  實(shi)驗室電(dian)(dian)源電(dian)(dian)路(lu) 最需要(yao)注意的(de)是電(dian)(dian)路(lu)安全(quan)。電(dian)(dian)路(lu)安全(quan)包(bao)含防(fang)止觸電(dian)(dian)、漏(lou)電(dian)(dian)、防(fang)電(dian)(dian)起火等(deng)方面的(de)安全(quan)。應有符合國家要(yao)求的(de)接(jie)(jie)地線和漏(lou)電(dian)(dian)保護器裝置。避免電(dian)(dian)源接(jie)(jie)線暴露在(zai)外,電(dian)(dian)路(lu)的(de)焊接(jie)(jie)、布線要(yao)牢固規范。

  供電(dian)(dian)(dian)(dian)線(xian)(xian)路應該(gai)由配電(dian)(dian)(dian)(dian)室專(zhuan)線(xian)(xian)引出,避免(mian)與其他樓(lou)層(ceng)大(da)功率設(she)備(bei)共線(xian)(xian),條(tiao)件允許的話,建議(yi)采(cai)(cai)用雙電(dian)(dian)(dian)(dian)源(yuan)(yuan)+UPS方(fang)式(shi),或采(cai)(cai)用單電(dian)(dian)(dian)(dian)源(yuan)(yuan)+UPS方(fang)式(shi),每個實驗室均配備(bei)二相、三相電(dian)(dian)(dian)(dian)源(yuan)(yuan),并(bing)獨立成系統。三相電(dian)(dian)(dian)(dian)源(yuan)(yuan)安裝最好在(zai)離地(di)45厘米處,二相單源(yuan)(yuan)的走線(xian)(xian)離地(di)80~100cm左右,以免(mian)混淆。供電(dian)(dian)(dian)(dian)方(fang)式(shi)采(cai)(cai)用TN-S方(fang)式(shi),并(bing)在(zai)每個實驗室裝漏電(dian)(dian)(dian)(dian)保(bao)護開關(guan),為減(jian)少電(dian)(dian)(dian)(dian)碰輻射,供電(dian)(dian)(dian)(dian)線(xian)(xian)路穿(chuan)鋼管(或PVC管)沿墻暗敷,每個房間根據設(she)備(bei)負荷預留一(yi)定容(rong)量。另外,電(dian)(dian)(dian)(dian)源(yuan)(yuan)口最好和有(you)水處有(you)一(yi)定的距離,以免(mian)產生危險。

  4、對實(shi)驗室管道、污水處理的要求(qiu)

  實(shi)驗室水(shui)(shui)(shui)處理分(fen)為兩塊,實(shi)驗區(qu)污(wu)水(shui)(shui)(shui)和(he)生活污(wu)水(shui)(shui)(shui),生活污(wu)水(shui)(shui)(shui)不需(xu)處理,可(ke)直接排入城市下水(shui)(shui)(shui)系統,實(shi)驗室污(wu)水(shui)(shui)(shui)需(xu)對其(qi)進行處理。

  建(jian)議所(suo)有(you)實驗室(shi)的污(wu)水(shui)(shui)排入到樓(lou)下(xia)污(wu)水(shui)(shui)池,然后由特定的污(wu)水(shui)(shui)處理(li)系統對(dui)其進行(xing)處理(li),所(suo)以(yi)下(xia)水(shui)(shui)系統所(suo)采(cai)和(he)的管道等均(jun)采(cai)用(yong)標準件,并具有(you)一定的防(fang)腐蝕(shi)性,便(bian)于以(yi)后維(wei)護(hu)。采(cai)用(yong)實驗室(shi)專用(yong)水(shui)(shui)龍頭、水(shui)(shui)嘴(zui)。水(shui)(shui)池排水(shui)(shui)口(kou)(kou)應有(you)過濾(lv)和(he)水(shui)(shui)封裝置。水(shui)(shui)池排水(shui)(shui)口(kou)(kou)和(he)下(xia)水(shui)(shui)道口(kou)(kou)連接處一定要嚴(yan)密牢固(gu),連接管最好采(cai)用(yong)硬質(zhi)管。水(shui)(shui)池下(xia)設置可(ke)開門,便(bian)于以(yi)后維(wei)護(hu)。

  5、對實驗室照(zhao)明的要求

  實驗(yan)室對(dui)照明的(de)要求(qiu)比較(jiao)高,一般書寫照度(du)不應(ying)低于(yu)200LX。盡量(liang)采用冷光(guang)源(yuan),有時(shi)還要求(qiu)安裝(zhuang)局(ju)部(bu)照明燈具,這里,貴單位應(ying)該根據(ju)要求(qiu)提出。

  實驗(yan)室(shi)的燈具采用(yong)(yong)600*600(20W*3)普通燈盤(pan),微生物區采用(yong)(yong)600*600(200W*3)凈化(hua)氣(qi)密燈盤(pan),另(ling)外還需配備殺(sha)菌燈(專指凈化(hua)區)。光源開(kai)(kai)關(guan)最(zui)好設在(zai)離門近的地(di)方(fang),易于開(kai)(kai)關(guan),所選開(kai)(kai)關(guan)或(huo)插座最(zui)好是防酸(suan)堿(jian)性強的實驗(yan)室(shi)專用(yong)(yong)開(kai)(kai)關(guan)等。

  6、對實驗(yan)室(shi)的房(fang)間(地面、墻(qiang)壁、天花板)要(yao)求(qiu)

  實驗(yan)室裝修這一方面(mian)越來越受使用(yong)者的(de)(de)(de)重視(shi),現代(dai)實驗(yan)室不應該是冰冷的(de)(de)(de),他應該具有家的(de)(de)(de)感覺。辦公區和(he)理化(hua)區的(de)(de)(de)天花(hua)板(ban)采用(yong)鋁扣板(ban)吊頂(600*600),地面(mian)采用(yong)600*600鏡面(mian)瓷(ci)磚,墻面(mian)以乳膠漆(qi)噴(pen)涂。

  微(wei)生物區(qu)所有天花板(ban)(ban)采用彩鋼板(ban)(ban)吊(diao)頂,地面(mian)(mian)為PVC耐磨地板(ban)(ban)(其中微(wei)生物區(qu)洗滌(di)間地面(mian)(mian)鋪(pu)防滑地磚,機(ji)房地面(mian)(mian)采用環氧樹(shu)脂地板(ban)(ban)鋪(pu)設(she)(she)),微(wei)生物區(qu)所有墻體隔(ge)斷(duan)(除(chu)洗滌(di)間內墻用瓷(ci)磚鋪(pu)設(she)(she)外)全部用彩鋼板(ban)(ban)密(mi)封。