(1) 正壓(ya)式二(er)氧化氯發生器(qi)

　　正(zheng)(zheng)(zheng)壓式二氧化(hua)氯(lv)發(fa)生(sheng)(sheng)(sheng)器由南京理工大學科(ke)研人員于(yu)1998年初在國(guo)內首次推出(chu)。稱其(qi)為正(zheng)(zheng)(zheng)壓式反(fan)(fan)應(ying)器是(shi)(shi)(shi)因為該(gai)種發(fa)生(sheng)(sheng)(sheng)器采用(yong)(yong)計量泵正(zheng)(zheng)(zheng)壓輸送原(yuan)料、正(zheng)(zheng)(zheng)壓反(fan)(fan)應(ying)和正(zheng)(zheng)(zheng)壓投加(jia)藥液。特(te)點(dian)是(shi)(shi)(shi)可在正(zheng)(zheng)(zheng)壓條件下反(fan)(fan)應(ying)生(sheng)(sheng)(sheng)成消(xiao)(xiao)毒(du)劑(ji)(ji)(ji)，直(zhi)(zhi)接投加(jia)到(dao)帶(dai)壓的(de)(de)水(shui)(shui)(shui)體中。若與供(gong)水(shui)(shui)(shui)泵聯(lian)動，或與余氯(lv)在線檢測儀表聯(lian)用(yong)(yong)，可方(fang)便(bian)(bian)的(de)(de)實現自動比例投加(jia)消(xiao)(xiao)毒(du)劑(ji)(ji)(ji)。開發(fa)這(zhe)種正(zheng)(zheng)(zheng)壓式發(fa)生(sheng)(sheng)(sheng)器初衷是(shi)(shi)(shi)為解(jie)決(jue)深井泵直(zhi)(zhi)供(gong)水(shui)(shui)(shui)泵后直(zhi)(zhi)接投加(jia)消(xiao)(xiao)毒(du)劑(ji)(ji)(ji)問題(ti)。從應(ying)用(yong)(yong)效(xiao)果(guo)看這(zhe)種發(fa)生(sheng)(sheng)(sheng)器不(bu)但能解(jie)決(jue)深井直(zhi)(zhi)供(gong)水(shui)(shui)(shui)消(xiao)(xiao)毒(du)、高層水(shui)(shui)(shui)箱水(shui)(shui)(shui)塔水(shui)(shui)(shui)消(xiao)(xiao)毒(du)，用(yong)(yong)于(yu)其(qi)它場合(he)也比負壓式設備優(you)越。其(qi)具有的(de)(de)操(cao)作方(fang)便(bian)(bian)，計量準確，便(bian)(bian)于(yu)控(kong)制(zhi)等優(you)點(dian)，尤其(qi)受(shou)到(dao)使(shi)用(yong)(yong)者的(de)(de)廣泛(fan)好評(ping)。

　　(2) 負壓式二氧(yang)化(hua)氯發生器

　　負(fu)(fu)壓(ya)(ya)式二(er)(er)氧化(hua)(hua)氯發生器(qi)(qi)(qi)(qi)是相對正壓(ya)(ya)式二(er)(er)氧化(hua)(hua)氯發生器(qi)(qi)(qi)(qi)而言的。負(fu)(fu)壓(ya)(ya)式發生器(qi)(qi)(qi)(qi)主(zhu)要通過水(shui)射器(qi)(qi)(qi)(qi)形(xing)成(cheng)真空，在反(fan)(fan)應(ying)(ying)系統內(nei)產(chan)生負(fu)(fu)壓(ya)(ya)，故稱為負(fu)(fu)壓(ya)(ya)式。由反(fan)(fan)應(ying)(ying)器(qi)(qi)(qi)(qi)內(nei)形(xing)成(cheng)的負(fu)(fu)壓(ya)(ya)將原(yuan)料吸(xi)入，反(fan)(fan)應(ying)(ying)產(chan)生的ClO2經水(shui)射器(qi)(qi)(qi)(qi)與(yu)水(shui)混合帶出(chu)。1998年之前，國內(nei)的化(hua)(hua)學法二(er)(er)氧化(hua)(hua)氯發生器(qi)(qi)(qi)(qi)多為負(fu)(fu)壓(ya)(ya)式發生器(qi)(qi)(qi)(qi)。它具有(you)負(fu)(fu)壓(ya)(ya)進料、負(fu)(fu)壓(ya)(ya)曝氣(qi)反(fan)(fan)應(ying)(ying)、負(fu)(fu)壓(ya)(ya)吸(xi)收、負(fu)(fu)壓(ya)(ya)投加(jia)等環(huan)節，全(quan)程負(fu)(fu)壓(ya)(ya)運行，有(you)較高的安全(quan)性和可靠性。負(fu)(fu)壓(ya)(ya)式反(fan)(fan)應(ying)(ying)工(gong)(gong)藝的采(cai)用，主(zhu)要是基礎安全(quan)上的考慮(lv)。由于ClO2是極不穩定的氣(qi)體物(wu)質，若與(yu)空氣(qi)混合很(hen)容(rong)易產(chan)生爆炸。反(fan)(fan)應(ying)(ying)器(qi)(qi)(qi)(qi)的全(quan)程負(fu)(fu)壓(ya)(ya)反(fan)(fan)應(ying)(ying)工(gong)(gong)藝較好(hao)地(di)解決了ClO2泄(xie)露(lu)的問題(ti)。