立式金属罐罐底变形量测量的研究

针对立式金属罐容量试行检定规程中关于罐底测量存在的问题,在分析了现有的几种解决方法的基础上,提出了一种新的测量方法———液位传感器法。新方法分析了立式罐底部几何形状和产生变形的原因,建立了罐底部变化模型,推导出了底部变形量的计算公式,确定了液位传感器的数目和安装地点。在实际测量中,通过液位传感器测出底部变形的相关数据,计算出底部变形量。经比较,此方法能减少立式罐计量受罐底变形的影响,提高了立式罐计量的精度。

Reseach on the Measurment of Bottom Deformation of Verical Metal Tank

Based on the bottom measurement existing in verification regulation of vertical metal tank capacity and analysis of several resolvable methods, a new way-level sensor method was presented. After analyzing the reason of bottom deformation and the geometry form of tank bottom, the movement model of bottom deformation was established, the calculation formula was derived, and the numbers and installation sites of level sensors were confirmed. In actual measurement, the bottom deformation values can calculated by measuring relative datum. By comparing, the method can eliminate the effect resulted from tank bottom deformation and improve the measurement precision.