脫氣塔(除碳器)
一、脫氣塔介紹:
脫氣塔又叫除(chu)(chu)碳器,脫氣塔是通過風機的(de)風力來吹脫水中(zhong)除(chu)(chu)去(qu)游離(li)CO2的(de)設備,一(yi)方面減(jian)小對鍋爐,過濾器的(de)腐(fu)蝕。另外一(yi)個作用(yong)(yong),如果用(yong)(yong)在陰陽(yang)離(li)子交(jiao)(jiao)換(huan)(huan)(huan)器,可以減(jian)輕陰離(li)子交(jiao)(jiao)換(huan)(huan)(huan)器的(de)負荷,提(ti)高化學除(chu)(chu)鹽工藝的(de)經濟性和出水水質(zhi),一(yi)般情況如果進水HCO3含量≥50mg/L時(shi),需要設置脫氣塔,其出水CO2含量<5mg/L。脫氣塔一(yi)般設置在陽(yang)離(li)子交(jiao)(jiao)換(huan)(huan)(huan)器或反滲(shen)透裝置之后。
二、脫氣塔制作和構成
脫(tuo)氣(qi)塔由進(jin)(jin)水(shui)(shui)(shui)裝置(zhi),填(tian)料(liao),風(feng)(feng)機,水(shui)(shui)(shui)箱組(zu)成,進(jin)(jin)水(shui)(shui)(shui)裝置(zhi)一般采用(yong)(yong)母支管布水(shui)(shui)(shui),材質根(gen)據不同(tong)(tong)的(de)(de)(de)需要(yao)(yao)可(ke)以選(xuan)用(yong)(yong)304、316、upvc穿孔管,要(yao)(yao)求孔朝下,填(tian)料(liao)選(xuan)用(yong)(yong)多面空(kong)(kong)心球,根(gen)據水(shui)(shui)(shui)質不同(tong)(tong)可(ke)以選(xuan)用(yong)(yong)陶瓷和(he)塑(su)料(liao)兩種,他主(zhu)要(yao)(yao)是起到增(zeng)大水(shui)(shui)(shui)的(de)(de)(de)表面積,使(shi)二氧(yang)化(hua)碳(tan)更好(hao)的(de)(de)(de)被(bei)吹脫(tuo)、風(feng)(feng)機主(zhu)要(yao)(yao)是提(ti)供(gong)風(feng)(feng)源,從(cong)而對水(shui)(shui)(shui)的(de)(de)(de)二氧(yang)化(hua)碳(tan)進(jin)(jin)行吹脫(tuo)、儲水(shui)(shui)(shui)箱使(shi)處理后的(de)(de)(de)水(shui)(shui)(shui)儲存,可(ke)以通(tong)過增(zeng)壓泵打到后續的(de)(de)(de)設備(bei)中(zhong),除碳(tan)器工(gong)作時(shi)(shi),水(shui)(shui)(shui)從(cong)上(shang)部進(jin)(jin)入,經(jing)配水(shui)(shui)(shui)裝置(zhi)淋下,通(tong)過填(tian)料(liao)層(ceng)后,從(cong)下部排入水(shui)(shui)(shui)箱,而風(feng)(feng)機的(de)(de)(de)提(ti)供(gong)的(de)(de)(de)風(feng)(feng)向是逆(ni)向的(de)(de)(de),即從(cong)下向上(shang)進(jin)(jin)行吹脫(tuo),通(tong)過填(tian)料(liao)層(ceng)后,由頂部排出。其(qi)原理所以當鼓入除碳(tan)器的(de)(de)(de)空(kong)(kong)氣(qi)流和(he)除碳(tan)水(shui)(shui)(shui)相接觸(chu)時(shi)(shi),水(shui)(shui)(shui)中(zhong)CO2便會被(bei)空(kong)(kong)氣(qi)流帶出。
三、脫氣塔選購(gou)注意說明
脫氣(qi)塔材質:1、碳鋼(gang) 2、不銹鋼(gang)304 3、不銹鋼(gang)316
防(fang)腐措施(shi):1、內涂環氧樹脂 2、內襯橡膠 3、內襯玻璃鋼(gang)
技術參數:工(gong)作(zuo)壓力:0.02MPa~0.3MPa
工作溫度:常溫
噴淋密度(du):60m3/h.m2
單臺流量:0.3m3/h~250m3/h
四、脫氣塔選型參數(流量對應(ying)尺寸(cun)表)