rosemount压变送器可以适用在油罐顶部,为了防止油品满溢,其设计一套液位报警装置,作为双保险使用。在应用中由于测量值直接为吨数,故油罐不论贮存何种油品,二次表显示的值是油罐内油品的吨数,避免了需要测定密度进行换算的麻烦。rosemount差压变送器主要特点:①读数直观直接明确,可直接读出油品的库存量;②免除了密度的测定和换算;③安装维护简单方便。rosemoun罗斯蒙特差压变送器一般情况油品出入库往往是采用泵输送经过椭圆齿轮流量计计量,由于流量计的精度有限,也只有0.2级,差压变送器还需测密度计算,其结果往往有些出入,从而造成计量纠纷。现在因为油罐测量的结果为吨数,而且精度可达到0.2级甚至0.1级,因此,差压变送器与容积式流量计相比,计量结果更准确。虽然在小数量的油品出入库时,由于分辨率的原因,测量的结果绝对误差较大,但在大数量的油品出入库时,其较高的精度和较小的相对误差,差压变送器是其它计量手段所无法比拟的,特别适合月度、季度、年度的盘存。rosemount差压变送器二次表、一次表介绍:二次表:选用WP系列智能光柱显示报警仪,万能信号输入,可任意改变量程,用光柱显示液位,用数字显示油品的吨数。以6#罐为例,S=π×r2=3.14×7.252=165m2,高为14m。在油罐顶部,差压变送器防止,作为双保险。一次表:法兰式隔爆差压变送器,选用法兰式是防止罐底脏物沉淀而堵塞引压管,变送器量程0~140kPa武汉德科蒙过程控制有限公司027-88062221传真:027-88068180网址:http://www.whdkm.com/ABSolute;top:0;border:0;width:undefinedpx;height:undefinedpx;" 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%3A32776%2C2%3A32776%2C8%3A134217728%2C9%3A134250504%2C10%3A32%2C11%3A32%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1081344%2C32%3A32%2C40%3A32&format=0x0&url=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fact%3D1&ea=0&flash=28.0.0&pra=5&wgl=1&tt_state=W3siaXNzdWVyT3JpZ2luIjoiaHR0cHM6Ly9hZHNlcnZpY2UuZ29vZ2xlLmNvbSISInN0YXRlIjowfSx7Imlzc3Vlck9yaWdpbiI6Imh0dHBzOi8vYXR0ZXN0YXRpb24uYW5kcm9pZC5jb20iLCJzdGF0ZSI6MH1d&dt=1608173987890&bpp=15&bdt=207&idt=100&shv=r20201203&cbv=r20190131&ptt=9&saldr=aa&cookie=ID%3Df208fc56032ec04a-222ab57211c400ce%3AT%3D1602655468%3ART%3D1602655468%3AS%3DALNI_MZ90KP_NdNDKAtfzA4A4RaK0MMehQ&nras=1&correlator=5019252814664&frm=23&ife=1&pv=2&ga_vid=1177484578.1608173988&ga_sid=1608173988&ga_hid=1587950967&ga_fc=0&nhd=1&u_tz=480&u_his=4&u_java=0&u_h=1080&u_w=1920&u_ah=1030&u_aw=1920&u_cd=24&u_nplug=11&u_nmime=26&adx=-12245933&ady=-12245933&biw=1234&bih=831&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=42530672%2C21068768&oid=3&pvsid=3294915009738987&pem=596&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php&rx=0&eae=2&fc=1920&brdim=860%2C139%2C860%2C139%2C1920%2C0%2C1234%2C831%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=8204&bc=29&ifi=0&uci=0.qay93nl0bxvc&dtd=127" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="0.qay93nl0bxvc" data-load-complete="true"> |