重力式无(wu)阀过滤器进水(shui)、出水(shui)、冲洗(xi)及排(pai)水(shui)均(jun)不用阀门(men)，靠水(shui)力作用运(yun)行，运(yun)行费用低，管(guan)理方便，安(an)全可靠，运(yun)行自动化。但(dan)是无(wu)阀过滤器进水(shui)夹(jia)气是运(yun)行过程常遇到(dao)(dao)的问题之一(yi)，很(hen)多人对此的危害认识并不是很(hen)明确，今天(tian)将会在这里详细讲解一(yi)下这其中的到(dao)(dao)道理。
过(guo)滤(lv)时(shi)进水(shui)(shui)带(dai)气(qi)(qi)(qi)，会在(zai)虹(hong)(hong)吸(xi)管(guan)(guan)顶(ding)端形(xing)成(cheng)(cheng)气(qi)(qi)(qi)囊，滤(lv)池需要(yao)反冲(chong)(chong)时(shi)，虹(hong)(hong)吸(xi)管(guan)(guan)顶(ding)端有(you)空气(qi)(qi)(qi)的(de)(de)(de)不(bu)断补充(chong)，虹(hong)(hong)吸(xi)辅(fu)助系(xi)统的(de)(de)(de)抽气(qi)(qi)(qi)管(guan)(guan)有(you)永(yong)远抽不(bu)完的(de)(de)(de)气(qi)(qi)(qi)，反冲(chong)(chong)洗无(wu)法形(xing)成(cheng)(cheng)，或需要(yao)过(guo)长(zhang)的(de)(de)(de)抽气(qi)(qi)(qi)时(shi)间虹(hong)(hong)吸(xi)才(cai)能形(xing)成(cheng)(cheng)。这使自用水(shui)(shui)量增(zeng)大，滤(lv)池出水(shui)(shui)水(shui)(shui)质恶化(hua);虹(hong)(hong)吸(xi)管(guan)(guan)顶(ding)端有(you)气(qi)(qi)(qi)囊，使过(guo)水(shui)(shui)断面(mian)减小，反冲(chong)(chong)洗强(qiang)度降低(di)，反冲(chong)(chong)洗不(bu)干净。重力式无(wu)阀过(guo)滤(lv)器(qi)聚集在(zai)滤(lv)室顶(ding)部(bu)的(de)(de)(de)空气(qi)(qi)(qi)，被进行(xing)阻塞而不(bu)能上(shang)(shang)逸(yi)，随(sui)着运(yun)行(xing)时(shi)间的(de)(de)(de)延续，部(bu)分(fen)受压空气(qi)(qi)(qi)冲(chong)(chong)破涡流紊动的(de)(de)(de)进水(shui)(shui)及虹(hong)(hong)吸(xi)管(guan)(guan)中水(shui)(shui)位压力上(shang)(shang)逸(yi)到虹(hong)(hong)吸(xi)管(guan)(guan)顶(ding)部(bu)，然(ran)后冲(chong)(chong)破排水(shui)(shui)井水(shui)(shui)封排出。
但当(dang)重(zhong)力式无阀过滤器反冲洗(xi)时(shi)，由(you)于虹(hong)吸(xi)管(guan)(guan)的(de)(de)虹(hong)吸(xi)作用，使进(jin)(jin)水(shui)(shui)(shui)(shui)(shui)管(guan)(guan)的(de)(de)进(jin)(jin)水(shui)(shui)(shui)(shui)(shui)流速(su)增加，配(pei)水(shui)(shui)(shui)(shui)(shui)槽的(de)(de)水(shui)(shui)(shui)(shui)(shui)位下降(jiang)，不仅失(shi)去(qu)排(pai)气作用，而且(qie)在配(pei)水(shui)(shui)(shui)(shui)(shui)槽的(de)(de)两进(jin)(jin)水(shui)(shui)(shui)(shui)(shui)管(guan)(guan)管(guan)(guan)口水(shui)(shui)(shui)(shui)(shui)流急骤(zhou)呈(cheng)旋流状态，从(cong)而夹带大量(liang)空气进(jin)(jin)人滤池随反冲洗(xi)水(shui)(shui)(shui)(shui)(shui)排(pai)出。虹(hong)吸(xi)管(guan)(guan)的(de)(de)管(guan)(guan)径是按反冲洗(xi)水(shui)(shui)(shui)(shui)(shui)量(liang)和正常进(jin)(jin)水(shui)(shui)(shui)(shui)(shui)量(liang)之(zhi)和设(she)计安装的(de)(de)，所以夹带有大量(liang)空气后就减少了冲洗(xi)水(shui)(shui)(shui)(shui)(shui)量(liang)，降(jiang)低了冲洗(xi)强度(du)。
此外，如(ru)果(guo)重(zhong)力式(shi)无阀过(guo)(guo)滤(lv)器虹(hong)(hong)(hong)吸(xi)管内的(de)进(jin)气(qi)量(liang)大于(yu)排(pai)气(qi)量(liang)时(shi)，气(qi)便(bian)聚集于(yu)虹(hong)(hong)(hong)吸(xi)管顶部(bu)气(qi)囊(nang)，使过(guo)(guo)水(shui)(shui)断面减小，反(fan)(fan)(fan)冲(chong)(chong)(chong)(chong)(chong)(chong)洗(xi)(xi)水(shui)(shui)量(liang)变(bian)(bian)小，滤(lv)池冲(chong)(chong)(chong)(chong)(chong)(chong)洗(xi)(xi)水(shui)(shui)箱水(shui)(shui)位下(xia)降变(bian)(bian)慢。宏观好象(xiang)反(fan)(fan)(fan)冲(chong)(chong)(chong)(chong)(chong)(chong)停(ting)，实(shi)际反(fan)(fan)(fan)冲(chong)(chong)(chong)(chong)(chong)(chong)洗(xi)(xi)并未停(ting)止(zhi)仍呈反(fan)(fan)(fan)冲(chong)(chong)(chong)(chong)(chong)(chong)洗(xi)(xi)状态(tai)，随着(zhe)反(fan)(fan)(fan)冲(chong)(chong)(chong)(chong)(chong)(chong)洗(xi)(xi)的(de)继续(xu)，虹(hong)(hong)(hong)吸(xi)管的(de)虹(hong)(hong)(hong)吸(xi)作用(yong)可能(neng)把大量(liang)空气(qi)排(pai)出，冲(chong)(chong)(chong)(chong)(chong)(chong)洗(xi)(xi)水(shui)(shui)量(liang)增(zeng)大，冲(chong)(chong)(chong)(chong)(chong)(chong)洗(xi)(xi)水(shui)(shui)箱的(de)水(shui)(shui)位又显著下(xia)降，反(fan)(fan)(fan)冲(chong)(chong)(chong)(chong)(chong)(chong)现(xian)象(xiang)比较(jiao)明显，如(ru)是这样反(fan)(fan)(fan)复进(jin)行(xing)就成了所谓的(de)“连续(xu)反(fan)(fan)(fan)冲(chong)(chong)(chong)(chong)(chong)(chong)”;如(ru)因进(jin)水(shui)(shui)的(de)夹(jia)气(qi)量(liang)太大，虹(hong)(hong)(hong)吸(xi)被破坏，而使反(fan)(fan)(fan)冲(chong)(chong)(chong)(chong)(chong)(chong)洗(xi)(xi)中(zhong)止(zhi)。但由于(yu)反(fan)(fan)(fan)冲(chong)(chong)(chong)(chong)(chong)(chong)洗(xi)(xi)中(zhong)的(de)假象(xiang)，滤(lv)层不干净使滤(lv)料(liao)阻力仍然很大，虹(hong)(hong)(hong)吸(xi)上升(sheng)管水(shui)(shui)位仍然很篼，很快又达(da)到冲(chong)(chong)(chong)(chong)(chong)(chong)洗(xi)(xi)水(shui)(shui)位进(jin)行(xing)反(fan)(fan)(fan)冲(chong)(chong)(chong)(chong)(chong)(chong)，但冲(chong)(chong)(chong)(chong)(chong)(chong)洗(xi)(xi)不彻底，会导致料(liao)很快结垢(gou)，影(ying)响净化效果(guo)。
良成重力式无阀过滤(lv)(lv)器(qi)，采用独(du)特的水(shui)力设计，充分运(yun)(yun)(yun)用虹吸原(yuan)理，依靠水(shui)力作用自动(dong)运(yun)(yun)(yun)行(xing)，能够实现整(zheng)套过滤(lv)(lv)系统的全自动(dong)运(yun)(yun)(yun)行(xing)及反冲洗，运(yun)(yun)(yun)行(xing)费用低、管理方便、安全可靠、运(yun)(yun)(yun)行(xing)自动(dong)化(hua)(hua)、设备(bei)一(yi)体化(hua)(hua)。了解更多关(guan)于无阀过滤(lv)(lv)器(qi)的信(xin)息请(qing)登陆网(wang)站 meiliyoga.cn 或拨(bo)打(da)服务(wu)热线 185-5332-7962。