差压式流量计测量脉动流量方法研究

doi:10.3969/j.issn.1000-1158.2020.04.007

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (371 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Based on the theoretical model of differential pressure flowmeter under the condition of pulsating flow, the algorithm of calculating instantaneous pulsating flow by double-channel differential pressure is given. The flow field in Venturi tube is simulated by FLUENT software, and then the calculation method of pulsating flow is verified. The simulation results show that the maximum error can be up to 100% when calculating the fluctuating flow by single-channel pressure, and the maximum error can be reduced to about 5% when calculating the fluctuating flow by double-channel differential pressure.

Key words： metrology pulsating flow simulation double-channel differential pressure flowmeter

Received: 09 September 2019

PACS:

TB937

Corresponding Authors: Email:zhangyongsheng304@163.com E-mail: zhangyongsheng304@163.com

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHANG Yong-sheng
	ZHANG Yi-zhi
	LIU Yan-jun

Cite this article:

ZHANG Yong-sheng,ZHANG Yi-zhi,LIU Yan-jun. Research on Method of Measuring Pulsating Flowrate with Differential Pressure Flowmeter[J]. Acta Metrologica Sinica, 2020, 41(4): 430-433.

URL:

http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2020.04.007 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2020/V41/I4/430

1 ISO 5167-1Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full-Part 1: General principles and requirements［S］. 2003.
2 ISO/TR3313Measurement of fluid flow in closed cond-uits—Guidelines on the effects of flow pulsations on flow measurement instruments［S］. 2018.
3 董峰,徐苓安,杨克家. 煤气输送管道中脉动流对孔板流量计的影响［J］. 自动化仪表, 1998, 2(5): 3-7. DongF, XuL A, YangK J. The Effects of Pulsed Flow on Orifice Flowmeter in Gas Transportation Pipelines［J］. Process Automation Instrumentation, 1998, 2(5):3-7.
4 宋文伟, 纪纲. 流动脉动对流量计测量仪表影响的几个实例［J］. 石油化工自动化, 2012, 3(5): 75-79. SongW W, JiG. The Examples as the Effect of Flow Pulsation on Flow Measurement Instrumentation［J］. Automation In Petro-Chemical Industry, 2012, 3(5): 75-79.
5 李文, 应启戛. 脉动流对涡轮流量计测量误差的影响［J］. 自动化仪表, 2002, 23(2): 20-22. LiW, YingQ J. The Influence of Pulsating Flow on Measuring Error of Turbine Flowmeter［J］. Process Auto-mation Instrumentation, 2002, 23(2): 20-22.
6 吴建平, 徐科军, 许伟, 等. 基于电压电流比的瞬态电磁流量测量方法［J］. 计量学报, 2019, 40(5): 829-834. WuJ P, XuK J, XuW, et al. Transient Electromagnetic Flow Measurement Method Based on Voltage-to-current Ratio and its Realization［J］. Acta Metrologica Sinica, 2019, 40(5): 829-834.
7 AlesbeI, Abdel-MaksoudM, AljabairS. Analysis of Unsteady Flow over offshore Wind Turbines in Combination with Different types of Foundations［J］. J Marine Sci Appl, 2017, 16: 199-207.
8 刘彦军, 张毅治, 张永胜,等. 燃油流量计在非稳态下计量性能研究［J］. 计测技术, 2019, 39(1): 38-41. LiuY J, ZhangY Z, ZhangY S, et al. Research on Measurement Performance of Fuel Flowmeter at Unsteady Flow［J］. Metrology & Measurement Technology, 2019, 39(3): 38-41.
9 ISO 5167-4Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full—Part 4: Venturi tubes［S］. 2003.
10 徐淑君, 姚征. 浮子流量计动态特性的非稳态数值研究［J］. 计量学报, 2007, 28(3): 248-252. XuS J, YaoZ. Unsteady Numerical Simulation for Flow Characteristics of Float Meter［J］. Acta Metrologica Sinica, 2007, 28(3): 248-252.
11 张永胜, 张毅治, 王鹏. 利用流体仿真研究文丘里流量计瞬变流动模型［J］. 计测技术, 2019, 39(1): 10-13. ZhangY S, ZhangY Z, WangP. Exploration of Model of Venturi Flowmeter under Transient Flow by Fluid Simulation［J］. Metrology & Measurement Technology, 2019, 39(3): 69-72.
12 张永胜, 张毅治, 王鹏. 取压口位置对文丘里管脉动流量测量的影响［J］. 计测技术, 2019, 39(3): 69-72. ZhangY S, ZhangY Z, WangP. Influence of Pressure Tapping Position on the Measurement of Pulsating Flow Through Venturi Tube［J］. Metrology & Measurement Technology, 2019, 39(3): 69-72.