组合总压管中取孔方式对流量测量结果的影响

doi:10.3969/j.issn.1000-1158.2022.12.14

Abstract
Figure/Table
References (17)
Related Citation (15)

Download: PDF (2818 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract For the application of combined total pressure pipe in flow measurement of large pipeline with diameter more than 1m, numerical simulation was carried out on the combination total pressure tube with different hole extraction methods (isocyclic method, Chebyshev method) and different amount of total pressure holes (2 pairs, 3 pairs and 4 pairs). The results indicate that the relative error of the measured results of the combination total pressure tube with 4 pairs of holes arranged by the Chebyshev method is small, which has the best effect. The combination total pressure tube was made according to the best hole-taking method,and the flow measurement test was carried out. The measurement results were compared with those obtained by the transverse method of Pitot static pressure tube. The results show that the deviation of two flow measurement methods is within±0.5%.

Key words： metrology flow measurement combination total pressure tube hole-taking method numerical simulation

Received: 06 September 2021 Published: 28 December 2022

PACS:

TB937

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	SAI Qing-yi
	XIN Xu-chao
	XU Hao-dong

Cite this article:

SAI Qing-yi,XIN Xu-chao,XU Hao-dong. Influence of Hole-taking Method on Flow Measurement Results in Combination Total Pressure Tube[J]. Acta Metrologica Sinica, 2022, 43(12): 1610-1615.

URL:

http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2022.12.14 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2022/V43/I12/1610

［1］GB/T 1236-2017 工业通风机用标准化风道进行性能实验［S］. 2017.
［2］孙立军, 王彩红, 张涛, 等. 整流翼型均速管流量传感器翼尖形状的优化［J］. 天津大学学报 (自然科学与工程技术版), 2018, 51(2):120-128.
Sun L J, Wang C H, Zhang T, et al. Optimization of the wingtip shape for averaging Pitot tube flow sensors with flow conditioning wing［J］. Journal of Tianjin University (Science and Technology), 2018,51 (2): 120-128.
［3］马平昌, 侯京锋, 李红. 角度自适应均速管流量计［J］.仪表技术与传感器, 2020(8):27-30.
Ma P C, Hou J F, Li H. Angle-adaptive averaging Pitot tube flowmeter ［J］. Instrument Technique and Sensor, 2020(8):27-30.
［4］刘亚成, 张吉礼, 夏南琪. 均速管流量计国内外研究进展分析［J］. 建筑热能通风空调, 2016, 35(3):47-51.
Liu Y C, Zhang J L, Xia N Q. Progress on averaging Pitot tube ［J］. Building Energy & Environment, 2016, 35(3): 47-51.
［5］谭强, 尹震飚, 郭振新. 均速管取压孔形状对输出静压的影响［J］. 仪表技术与传感器, 2014 (3):89-91.
Tan Q, Yin Z B, Guo Z X. Influence of the pressure tappings shape on output static pressure in averaging Pitot tube［J］. Instrument Technique and Sensor, 2014 (3): 89-91.
［6］Kabaciński M, Pospolita J.Numerical and experimental research on new cross-sections of averaging Pitot tubes［J］. Flow Measurement and Instrumentation, 2008, 19(1):17-27.
［7］Vinod V, Chandran T, Padmakumar G, et al. Calibration of an averaging Pitot tube by numerical simulations［J］. Flow Measurement and Instrumentation, 2012, 24:26-28.
［8］Dobrowolski B, Kabaciński M, Pospolita J. A mathematical model of the self-averaging Pitot tube［J］. Flow Measurement and Instrumentation, 2005, 16 (4):251-265.
［9］杨静思. 均速管流量计不均匀流场测量特性研究［D］. 北京:华北电力大学 (北京), 2017.
［10］朱建国,殷忠民,唐俊锐.组合总压管在风机性能测试中的应用［J］. 风机技术,2005 (1): 7-9.
Zhu J G, Yin Z M, Tang J R. Application of combination total pressure tube in fan performance test［J］. Compressor Blower & Fan Technology, 2005(1): 7-9.
［11］唐俊锐, 殷忠民, 朱建国.大型通风机流量和压力测量方法的应用［J］. 风机技术, 2005(2):8-10.
Tang J R, Yin Z M, Zhu J G. Application on measuring methods for flow rate and pressure of large fan［J］. Compressor Blower & Fan Technology, 2005(2):8-10.
［12］闻建龙. 均速管流量计选点位置的研究［J］. 排灌机械, 1994(3): 52-53.
Wen J L. Research on selecting point position of averaging Pitot tube［J］. Journal of Drainage and Irrigation Machinery Engineering, 1994(3): 52-53.
［13］Ward-Smith A J, Benedict R P, Hagist W M. Internal fluid flow: the fluid dynamics of flow on pipes and ducts and fundamentals of pipe flow ［J］. Journal of Fluids Engineering, 1982, 104 (1): 129.
［14］周宁宁,梁国伟.速度面积法中不同特征点位置选择法之比较［J］. 中国计量学院学报, 2003, 14 (2): 104-108.
Zhou N N, Liang G W. The comparison of selection of different characteristic points with area velocity method［J］. Journal of China Institute of Metrology, 2003, 14(2):104-108.
［15］张维一, 龚家彪. 圆管中充分发展紊流的流速分布与平均流速位置的研究［J］. 计量学报, 1983, 4(1): 1-6.
Zhang W Y, Gong J B. Research on the velocity distribution and average velocity position of fully developed turbulent flow in a circular pipe ［J］. Acta Metrologica Sinica,1983, 4 (1):1-6.
［16］Zhang J L, Li W, Liang R B, et al. Numerical and experimental research on pentagonal cross-section of the averaging Pitot tube ［J］. Measurement Science and Technology, 2017, 28 (7):075003.
［17］Wcel D, Chmielniak T, Kotowicz J. Experimental and numerical investigations of the averaging Pitot tube and analysis of installation effects on the flow coefficient ［J］. Flow Measurement and Instrumentation, 2008,19 (5): 301-306.
［18］朱莹, 王小华, 麻剑锋, 等. 均速管流量计优化设计的数值模拟［J］. 工业仪表与自动化装置, 2013(1):57-59.
Zhu Y, Wang X H, Ma J F, et al. The numerical simulation of the optimization design of averaging Pitot tube ［J］. Industrial Instrumentation & Automation, 2013 (1): 57-59.
［19］张永胜, 张毅治, 刘彦军. 差压式流量计测量脉动流量方法研究［J］. 计量学报, 2020, 41 (4):430-433.
Zhang Y S, Zhang Y Z, Liu Y J. Research on method of measuring pulsating flowrate with differential pressure flowmeter ［J］. Acta Metrologica Sinica,2020,41(4):430-433.