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影响气体涡轮流量计标定精度的因素
来源:云仪仪表 发布时间: 2019-10-29 16:57:31 浏览次数:62

导读:影响气体涡轮流量计标定精度的因素。由于生产的发展,煤碳、燃油的使用增加过快,造成环境污染越来越严重,为此大力发展天然气、煤气、沼气等清洁燃料的使用成为解决环境问题的一个重要手段,并且已取得了很大成效。燃气事业的发展使燃气贸易计量的准确性更加重要。因此,寻求高精度的计量仪表已成为燃气贸易中的一个不可忽视的重要问题,而标定方法和标定系统的选择是直接关系到流量计实际计量精度的关键。气体涡轮流量计是速度式的流量测量仪表,具有量程宽、重复性好等优点。在国内外燃气、石油化工等行业得到了广泛的使用。尽管涡轮表本身计量准确、精度高,但若出厂时对其标定不够准确,则直接影响其计量精度。在国外每台气体涡轮流量计投入使用前都必须进行严格的标定,所用的标准装置主要为“标准气体涡轮流量计”、“音速喷嘴”、“钟罩式标准计量器”、“标准滚筒气体流量计”、“标准旋转叶片气体流量计”等,其中前3种为常用的标准装置。为了确保其作为贸易结算依据及其公证性、准确性,提高气体涡轮流量计标定精度必不可少。

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影响气体涡轮流量计标定精度的因素


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标签: 气体涡轮流量计

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