新型振筒式密度计研究与应用  

Research and Application on New-type Vibration Cylinder Densometer

作　　者：蒲鹤[1] 丁莉丽[1] 修德欣[1] 王振中[1] Pu He Ding Lili Xiu Dexin Wang Zhenzhong(Qingdao Research Institute of Safety Engineering, Sinopec, Qingdao, 266071, China)

机构地区：[1]中国石油化工股份有限公司青岛安全工程研究院,山东青岛266000

出　　处：《石油化工自动化》2017年第3期57-59,64,共4页Automation in Petro-chemical Industry

摘　　要：根据振筒式密度计的测量原理,介绍了密度计振筒结构和信号处理电路,分析了环境噪音、温度、黏度、流速等因素对密度计测量结果的影响,并提出运用降低频率干扰的措施来提高测量精度。将密度计法计算的转输量、手工法计算的转输量以及质量流量计的测量值三者进行比较,密度计法计算的转输量的质量相对偏差均在0.10%以下,更接近质量流量计的测量值。Based on measurement principle of vibration cylinder densometer, cylinder structure and signal processing circuit loop are introduced. Influences of ambient noise, temperature, viscosity and flow rate on the vibration cylinder densometer are analyzed. Method to reduce frequency interference is brought forward to improve densometer＇s precision. Conveying capacity among densometer method, manual method and mass flowmeter are compared. The relative average deviation of conveying capacity densometer method below 0. 1%, which is closer to mass flowmeter measurement value.

关 键 词：密度计 振筒 固有频率 库存管理 

分 类 号：TE937[石油与天然气工程—石油机械设备]