差压流量装置密度差修正原理及方法  

The Principle and Method of Density Difference Correction of Differential Pressure Flow Device

作　　者：周勇 黄俊 仲巍 Zhou Yong;Huang Jun;Zhong Wei(Guoneng Jiangsu Jianbi Power Generation Co.,Ltd.,Zhenjiang,China)

机构地区：[1]国能江苏谏壁发电有限公司,江苏镇江

出　　处：《科学技术创新》2024年第8期208-211,共4页Scientific and Technological Innovation

摘　　要：差压测量装置推荐采用水平安装方式,但实际使用时,存在非水平安装的情况,对差压测量带来了困难和误差。针对该现象GB/T 2624和ASME PTC 19.5未涉及,ASME PTC 6给出的公式错误,仅个别标准针对垂直安装的ASME喷嘴给出了修正公式,但无推导过程,理解和应用困难。另外,现有文献均未涉及倾斜安装案例的差压修正方法。该情况给工程应用和试验研究人员准确测量流量带来一定挑战。通过对非水平安装的差压式流量装置展开压力分析和公式推导,给出差压修正公式和使用建议,为相关人员提供参考。Differential pressure measurement device for flow is recommended to be horizontal,in actual,non-horizontal situation,brings difficulties and errors to the flow measurement.GB/T 2624 and PTC 19.5 have no discuss in this issue,The wrong formulas of ASME PTC6 brings misleading and confusion to users.Through the pressure analysis and formula derivation of the non-horizontal flow device,the formula and use suggestions are given to provide reference for relevant personnel.

关 键 词：流量 差压 修正 

分 类 号：TK313[动力工程及工程热物理—热能工程]