在GB50050-2007中，對間冷開(kai)式(shi)系統循環冷卻(que)水(shui)水(shui)質指標(biao)濁度(du)要(yao)求(qiu)如(ru)下:換熱(re)器(qi)為板式(shi)濁度(du)≤20NTU；換熱(re)設備為板式(shi)、翅片管式(shi)、螺(luo)旋板式(shi)≤10NTU。
直冷(leng)(leng)系統循環冷(leng)(leng)卻(que)(que)水水質指標要求如下：連鑄(zhu)二次冷(leng)(leng)卻(que)(que)水及軋鋼直接冷(leng)(leng)卻(que)(que)水、揮發(fa)窯(yao)窯(yao)體(ti)表面清(qing)洗水≤30mg/L；煉鋼真空處(chu)理冷(leng)(leng)卻(que)(que)水≤50mg/L；高爐(lu)(lu)轉爐(lu)(lu)煤氣清(qing)洗水、合成氨廠(chang)造氣洗滌水≤100mg/L。
全自動管式過濾機作為工業循環水去除濁度、懸浮物的常見設備，本期給大家分享工業循環水處理技術中常見的全自動管式過濾機工作原理，希望給大家帶來點幫助。
全自動管式過濾機過濾(lv)流程：
經沉淀或澄清(qing)后(hou)(hou)的(de)清(qing)水(shui)(shui)(shui)(shui)(shui)，經配(pei)(pei)水(shui)(shui)(shui)(shui)(shui)槽和U形管進入虹吸(xi)上升(sheng)管，再由(you)頂蓋內的(de)布水(shui)(shui)(shui)(shui)(shui)擋板均(jun)勻(yun)地分配(pei)(pei)到濾(lv)料層中，水(shui)(shui)(shui)(shui)(shui)自上而下通過濾(lv)料層進行(xing)過濾(lv)，濾(lv)水(shui)(shui)(shui)(shui)(shui)后(hou)(hou)由(you)小阻力配(pei)(pei)水(shui)(shui)(shui)(shui)(shui)裝置進行(xing)收集后(hou)(hou)進入清(qing)水(shui)(shui)(shui)(shui)(shui)區(qu)（即出(chu)水(shui)(shui)(shui)(shui)(shui)箱）貯存(cun)，當水(shui)(shui)(shui)(shui)(shui)位上升(sheng)至出(chu)水(shui)(shui)(shui)(shui)(shui)管時(shi)，濾(lv)后(hou)(hou)水(shui)(shui)(shui)(shui)(shui)自流到清(qing)水(shui)(shui)(shui)(shui)(shui)池。
全自動管式過濾機反洗流程(cheng)：
濾池(chi)運行初時比較清(qing)(qing)潔，隨著運行時間的推移而濾層表面顆粒(li)雜質逐漸增多，水(shui)(shui)(shui)頭損(sun)失也隨之增加(jia)，水(shui)(shui)(shui)位將沿著虹(hong)(hong)吸(xi)(xi)(xi)上(shang)(shang)(shang)升(sheng)管(guan)(guan)慢慢升(sheng)高，當(dang)水(shui)(shui)(shui)頭損(sun)失增加(jia)到(dao)一定程(cheng)(cheng)度后，虹(hong)(hong)吸(xi)(xi)(xi)上(shang)(shang)(shang)升(sheng)管(guan)(guan)中(zhong)(zhong)的水(shui)(shui)(shui)位上(shang)(shang)(shang)升(sheng)到(dao)虹(hong)(hong)吸(xi)(xi)(xi)輔助管(guan)(guan)口(kou)并從(cong)輔助管(guan)(guan)口(kou)急速流下(xia)(xia)，依靠水(shui)(shui)(shui)流的挾氣和射流作用及抽(chou)氣管(guan)(guan)將虹(hong)(hong)吸(xi)(xi)(xi)管(guan)(guan)中(zhong)(zhong)的空(kong)氣帶走，使虹(hong)(hong)吸(xi)(xi)(xi)管(guan)(guan)形成真空(kong)，虹(hong)(hong)吸(xi)(xi)(xi)上(shang)(shang)(shang)升(sheng)管(guan)(guan)中(zhong)(zhong)的水(shui)(shui)(shui)就(jiu)大量地越(yue)過(guo)(guo)(guo)(guo)管(guan)(guan)頂沿虹(hong)(hong)吸(xi)(xi)(xi)下(xia)(xia)降(jiang)管(guan)(guan)落下(xia)(xia)。即開(kai)始了反沖洗(xi)過(guo)(guo)(guo)(guo)程(cheng)(cheng)。清(qing)(qing)水(shui)(shui)(shui)區的水(shui)(shui)(shui)經過(guo)(guo)(guo)(guo)連通管(guan)(guan)、集水(shui)(shui)(shui)區和配水(shui)(shui)(shui)裝置從(cong)下(xia)(xia)而上(shang)(shang)(shang)沖洗(xi)濾料層，當(dang)清(qing)(qing)水(shui)(shui)(shui)區的水(shui)(shui)(shui)位下(xia)(xia)降(jiang)到(dao)虹(hong)(hong)吸(xi)(xi)(xi)破壞裝置時（約5min左(zuo)右(you)），虹(hong)(hong)吸(xi)(xi)(xi)被破壞而沖洗(xi)過(guo)(guo)(guo)(guo)程(cheng)(cheng)結(jie)束(shu)，過(guo)(guo)(guo)(guo)濾又(you)重新開(kai)始。
