在关闭泵(beng)(beng)出(chu)(chu)口阀,打开(kai)泵(beng)(beng)进口阀,并能确保水(shui)泵(beng)(beng)“自灌”(液位高于泵(beng)(beng)的(de)进口的(de)管道(dao)条件下,水(shui)泵(beng)(beng)的(de)启(qi)动(dong)(dong)程(cheng)序是:启(qi)动(dong)(dong)电(dian)机(ji)(ji)(ji),待电(dian)机(ji)(ji)(ji)正常运行时,缓(huan)(huan)缓(huan)(huan)打开(kai)出(chu)(chu)口阀,使电(dian)流慢(man)慢(man)加(jia)大(da)(da)。但在无人操(cao)作(开(kai)阀),又是自动(dong)(dong)启(qi)泵(beng)(beng),且管道(dao)直径与长度大(da)(da)(管道(dao)内(nei)的(de)水(shui)质(zhi)量会很大(da)(da)),如电(dian)机(ji)(ji)(ji)快速启(qi)动(dong)(dong),要迅速推动(dong)(dong)大(da)(da)质(zhi)量的(de)水(shui)加(jia)速(如同(tong)火车(che)要很快加(jia)速),会使电(dian)机(ji)(ji)(ji)启(qi)动(dong)(dong)电(dian)流很大(da)(da),引起电(dian)机(ji)(ji)(ji)跳(tiao)闸及损坏机(ji)(ji)(ji)械与电(dian)机(ji)(ji)(ji)。采用软(ruan)(ruan)启(qi)动(dong)(dong)(电(dian)路中添加(jia)软(ruan)(ruan)启(qi)动(dong)(dong)器)-----即电(dian)机(ji)(ji)(ji)缓(huan)(huan)慢(man)加(jia)转(zhuan)速,即可克服(fu)上(shang)述情况的(de)发(fa)生,这种专门控制电(dian)机(ji)(ji)(ji)缓(huan)(huan)慢(man)和转(zhuan)速的(de)软(ruan)(ruan)启(qi)动(dong)(dong)器就是水(shui)泵(beng)(beng)软(ruan)(ruan)启(qi)动(dong)(dong)。
直(zhi)接启动(dong)的(de)时候(hou),电流(liu)可(ke)能会达到额定电流(liu)的(de)6-7倍(bei),会给工厂(chang)的(de)其(qi)他(ta)用电设备带来问题。采用软启动(dong)时启动(dong)电流(liu)大概(gai)是(shi)额定电流(liu)的(de)2-3倍(bei)。对于水(shui)泵来说(shuo),还(hai)有软停(ting)止,让水(shui)慢(man)慢(man)回落,消除水(shui)锤效果。简单的(de)说(shuo)就是(shi)缓(huan)缓(huan)启动(dong),缓(huan)缓(huan)停(ting)止。这个缓(huan)缓(huan)的(de)时间可(ke)以调节,大概(gai)是(shi)1-60秒(miao)。
软(ruan)启动水泵控制柜调试与(yu)使(shi)用方法
软启动水泵控(kong)制(zhi)柜(配(pei)电(dian)柜)控(kong)制(zhi)回(hui)路(lu)中,既设自动控(kong)制(zhi)亦有手动控(kong)制(zhi),还具备(bei)过(guo)(guo)压、过(guo)(guo)流、欠压、缺相保(bao)护(hu)及事故(gu)报苦功能,本产品使用前,必须(xu)按(an)电(dian)气原理图复核后接线,按(an)照电(dian)动机实(shi)际要求调整(zheng)相应(ying)元件设定值(zhi),然后起(qi)动。
1、自动操作:接通电(dian)(dian)源,电(dian)(dian)源指示(shi)灯(deng)亮(liang)(liang),将转(zhuan)换(huan)开关(guan)转(zhuan)至“自动”位(wei)(wei)置,检查控(kong)制(zhi)(zhi)柜(箱)所(suo)控(kong)制(zhi)(zhi)的电(dian)(dian)机是否按液位(wei)(wei)控(kong)制(zhi)(zhi)仪(yi)的指令动作。当(dang)(dang)液位(wei)(wei)达到控(kong)制(zhi)(zhi)液位(wei)(wei)时(shi),对应液位(wei)(wei)指示(shi)灯(deng)发(fa)光,相应的限(xian)位(wei)(wei)控(kong)制(zhi)(zhi)继电(dian)(dian)器(qi)常开触点自动闭合,二次(ci)(ci)控(kong)制(zhi)(zhi)回路(lu)自动接通,电(dian)(dian)机起动,同时(shi)运行(xing)(xing)指示(shi)灯(deng)亮(liang)(liang)。当(dang)(dang)水位(wei)(wei)达到停(ting)止(zhi)水位(wei)(wei)时(shi),对应的指示(shi)灯(deng)发(fa)光,液位(wei)(wei)测(ce)控(kong)仪(yi)的对应限(xian)位(wei)(wei)控(kong)制(zhi)(zhi)继电(dian)(dian)器(qi)常闭触点断开,二次(ci)(ci)控(kong)制(zhi)(zhi)回路(lu)开路(lu),电(dian)(dian)机停(ting)止(zhi)工(gong)作,运行(xing)(xing)指示(shi)灯(deng)熄灭。
2、手(shou)动操作:接通电(dian)源,电(dian)源指(zhi)示(shi)(shi)(shi)灯(deng)亮,将转(zhuan)换开关转(zhuan)至“手(shou)动”位置,按(an)下(xia)起动按(an)钮(niu),电(dian)机开始运(yun)转(zhuan),运(yun)行(xing)指(zhi)示(shi)(shi)(shi)灯(deng)亮,按(an)下(xia)”停止”按(an)钮(niu),电(dian)机停止运(yun)转(zhuan),其运(yun)行(xing)指(zhi)示(shi)(shi)(shi)灯(deng)熄灭。
3、不论采用何种(zhong)控(kong)制(zhi)方式(shi),当达到极限水(shui)位时(shi),其超限水(shui)位信号触(chu)点接(jie)通,二次(ci)控(kong)制(zhi)回路失电(dian),使电(dian)机(ji)停止运(yun)转,并发出声光(guang)报苦信号。在电(dian)机(ji)运(yun)行过程中(zhong)如(ru)有事故(gu)出现,事故(gu)指示灯亮,电(dian)铃自(zi)动报苦,这时(shi),按(an)(an)下(xia)停止按(an)(an)钮,迫使电(dian)机(ji)停止工作(zuo)。