电气阀门定位器使用对一些易沉淀、含有固体颗粒的介质采用普通阀调节时,要经常在节流口、导向处堵塞,可在下阀盖底塞处外接冲刷气体和蒸汽。当阀产生堵塞或卡住时,打开外接的气体或蒸气阀门,即可在不动调节阀的情况下完成冲洗工作,使阀门定位器正常运行。对小口径的定位器调节阀,尤其是超小流量调节阀,其节流间隙特小,介质中不能有一点点渣物。遇此情况堵塞,最好在阀前管道上安装一个过滤器,以保证介质顺利通过。带定位器使用的调节阀,定位器工作不正常,其气路节流口堵塞是最常见的故障。因此,带定位器工作时,必须处理好气源,通常采用的办法是在定位器前气源管线上安装空气过滤减压阀。 电气阀门定位器的电动调节阀具有可靠性能高、功能全、轻巧便捷的特点外,还可以使用电源,省去了建立气源站的一系列麻烦。电机运行产生的内热会导致热保护,使调节阀停止工作;由于电机必须经过多级减速才能输出力矩,所以运行速度还不是很快,在有些要求快速启闭的场合还不适用,由于运动部件多,相对容易产生故障,尤其在调节频繁的工况,容易产生电机热保护、减速齿轮损坏、模块可控硅烧毀等故障,在这种工况下,还是选用气动调节阀比较适宜。http://www.whamri.com/电话:027-87263542手机:18372021864ABSolute;top:0;border:0;width:undefinedpx;height:undefinedpx;" SANdbox="allow-forms allow-popUPS allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation" frameborder="0" src="https://googleads.g.doubleclick.net/pagead/ads?guci=2.2.0.0.2.2.0.0&client=ca-pub-6745515041074118&ouTPUt=html&adk=1812271804&adf=3279755396&plat=1%3A8%2C2%3A8%2C8%3A134217728%2C9%3A134250504%2C10%3A32%2C11%3A32%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1048576%2C32%3A32%2C40%3A32&format=0x0&url=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fact%3D1&ea=0&flash=29.0.0&pra=5&wgl=1&tt_state=W3siaXNzdWVyT3JpZ2luIjoiaHR0cHM6Ly9hZHNlcnZpY2UuZ29vZ2xlLmNvbSISInN0YXRlIjowfSx7Imlzc3Vlck9yaWdpbiI6Imh0dHBzOi8vYXR0ZXN0YXRpb24uYW5kcm9pZC5jb20iLCJzdGF0ZSI6MH1d&dt=1609383018102&bpp=7&bdt=266&idt=28&shv=r20201203&cbv=r20190131&ptt=9&saldr=aa&cookie=ID%3Da07b3c4ba002eaff-22ed306a0ec40076%3AT%3D1602729171%3ART%3D1602729171%3AS%3DALNI_MbBh5yg2uKd0UtH0u1Ylcdyq42wTg&nras=1&correlator=2785004750402&frm=23&ife=1&pv=2&ga_vid=619913783.1609383018&ga_sid=1609383018&ga_hid=1746556972&ga_fc=0&nhd=1&u_tz=480&u_his=5&u_java=0&u_h=1080&u_w=1920&u_ah=1030&u_aw=1920&u_cd=24&u_nplug=14&u_nmime=31&adx=-12245933&ady=-12245933&biw=861&bih=649&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=21067982%2C21065725&oid=3&pvsid=3469015205103808&pem=217&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php&rx=0&eae=2&fc=1664&brdim=692%2C18%2C692%2C18%2C1920%2C0%2C1227%2C1030%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=9228&bc=31&ifi=1&uci=1.kcx7lnww3zo3&fsb=1&dtd=55" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="1.kcx7lnww3zo3" data-load-complete="true"> |