西门子质量流量计的产品在应用上弥补了很多普通流量计的不足,如低压气体:液体中含气量超过某一值时 会显明地影响测量值,到目前为止尚未成功地测量气液两相流。对外界震动干扰较敏感,为防止管道震动的影响,多数的流量传感器对安装固定有较高的要求。不能用于大管径流量测量,目前还局限于DNI 50mm- ~DN200mm以下。测量管内壁磨损腐蚀或沉积结垢会影响测量精度,尤其对薄壁测量管缺点明显,并且价格昂贵,压力损失也较大。 西门子质量流量计与其他流量计相比,优点明显,如:计量精确度高,稳定性好,真正实现了高精度的直接质量流量测量,且不受被测介质物理参数的影响。计量精确度已达到士0.1%~士0.4%,有的还可做得更高;重复性优于士0.1%。如此高精确度只要用一台流量计就可获得,且不受其他参数影响,这正是海上平台应用中所迫切期待的。对介质的适应性较广,可以测量种类很多的液体和浆液如石油产品、化工介质、食品介质、带纤维液体及高粘浆液等。不受管内流动状态的影响,无论是层流还是湍流都不影响测量精度,对上游侧的流速分布不敏感。流量计的前后不必设置很长的直管段,为安装提供了方便。检测管内无可动部件,也无阻碍流体流动的部件,从而使得流量计更便于维护和清洗,使用寿命长。还可进行多参数测量,在测量质量流量的同时测得介质密度、体积流量、温度等参数。http://www.whamri.com/电话:027-87263542手机:18372021864PARent;">ABSolute;top:0;border:0;width:undefinedpx;height:undefinedpx;" SANdbox="allow-forms allow-pointer-lock 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?client=ca-pub-6745515041074118&ouTPUt=html&adk=1812271804&adf=3279755396&plat=1%3A32776%2C2%3A32776%2C8%3A32768%2C9%3A32776%2C10%3A32%2C11%3A32%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1081344%2C32%3A32%2C40%3A32&guci=2.2.0.0.2.2.0.0&format=0x0&url=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fact%3D1&ea=0&flash=29.0.0&pra=5&wgl=1&adsid=NT&dt=1593756054272&bpp=5&bdt=713&idt=288&shv=r20200624&cbv=r20190131&ptt=9&saldr=aa&cookie=ID%3Da07b3c4ba002eaff%3AT%3D1586760676%3AS%3DALNI_MZl9pNx2HQ9GFalqRptRGcqVZOiBA&nras=1&correlator=3885373713769&frm=23&ife=1&pv=1&ga_vid=1319506456.1593756055&ga_sid=1593756055&ga_hid=821368694&ga_fc=0&iag=3&icsg=42&nhd=1&dssz=4&mdo=0&mso=0&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=15&u_nmime=32&adx=-12245933&ady=-12245933&biw=1272&bih=743&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=21065532%2C21066392%2C21066450%2C42530494%2C42530496%2C42530499%2C42530501&oid=3&pvsid=1954132569440789&pem=217&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php&rx=0&eae=2&fc=1920&brdim=564%2C41%2C564%2C41%2C1920%2C0%2C1393%2C907%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=8220&bc=31&ifi=0&uci=0.aze0iupc6kmf&fsb=1&dtd=318" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="0.aze0iupc6kmf" data-load-complete="true"> |