转向式换向器的最优流量特性与计时差

doi:10.3969/j.issn.1000-1158.2023.04.16

Abstract
Figure/Table
References (16)
Related Citation (15)

Download: PDF (49160 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The function expression of the flow characteristics of the rotary flow diverter was deduced. It can be seen from the expression that when the splitter plate of the diverter moves at a constant speed through the nozzle slot, the optimal flow characteristic curve with an approximately linear relationship is obtained. A flaw of the Biryukov curves was pointed out. It was also proposed that the essence of the flow diverter timing error Δt is the error caused by the installation asymmetry and the flow characteristic asymmetry, not the travel difference. The tow computational equations of the timing error were deduced, the equation in JJG 164—2000(flowmeter method) and the one in ISO4185 standard (static weighing method). A stepper motor drive system was designed, and experiments on the installation asymmetry of the diverter were carried out. The experimental results show that when the diverter splitter plate is triggered in advance, the timing error produces a negative deviation while lag trigger produces a positive deviation; and the greater the distance from the center point, the greater the absolute value of the timing error.

Key words： metrology flow diverter Biryukov curve optimal flow characteristics timing error

Received: 06 April 2022 Published: 18 April 2023

PACS:

TB937

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YANG Wan-li
	WANG Xin-gen
	CHEN Yu-jie
	SHEN Yu-ming

Cite this article:

YANG Wan-li,WANG Xin-gen,CHEN Yu-jie, et al. Optimal Flow Characteristics and Timing Error of a Rotary Flow Diverter[J]. Acta Metrologica Sinica, 2023, 44(4): 598-603.

URL:

http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2023.04.16 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2023/V44/I4/598

［2］	马龙博, 赵进慧, 孙斌, 等. 基于旋转分流的同向换向器流量测量模型及实验研究［J］. 计量学报, 2022, 43(6): 760-765.
［4］	比留科夫著. 液体流量的精密测量［M］. 傅烈堂,译. 北京:中国计量出版社,1982.
［5］	Pschel W, Engel R, Dopheide D, et al. A unique fluid diverter design for water flow calibration facilities［C］//10th International Conference on Flow Measurement (FLOMEKO’2000), Salvador, Brazil. 2000.
［13］	JJG 164—2000液体流量标准装置检定规程［S］. 2000.
	Ma L O, Zhao J H, Sun B, et al. Flow Rate Measurement Model and Experimental Research of Unidirectional Diverter Based on Rotating Shunt［J］. Acta Metrologica Sinica, 2022, 43(6): 760-765.
［8］	Marinari C. The New Inrim Primary Standard of Water Flow Rate［C］//Proceedings of the 16th International Conference on Flow Measurement (FLOMEKO’2013), Paris, France,2013.
［10］	Korneev R A, Tukhvatullin A R, FafurinV A, et al. Measurement Uncertainties Estimation Introduced by the Diverter Into the Budaet of Standard Uncertainties［C］//Proceedings of the 18th International Flow Measurement Conference. (FLOMEKO’ 2019), Lisbon, Portugal. 2019.
［11］	Korneev R A, Tukhvatullin A R, FafurinV A, et al. Assessment of Influence of Flow Diverter on the Metrological Characteristics of Calibration Devices Used for the Units of Mass and Unit of Volume of a Liquid in a Flow and of Mass and Volume Discharges of Liquid ［J］. Measurement Techniques, 2019, 62(4):347-353.
	Qiao B B, Wan Y, Wu B, et al. Research on a new type of large water flow standard facility and the performance evaluation technology of diverter ［J］. Journal of Electronic Measurement and Instrumentation, 2021, 35(11):47-53.
［1］	Shimada T, Oda S, Terao Y, et al. Development of a new diverter system for liquid flow calibration facilities［J］. Flow Measurement and Instrumentation, 2003, 14(3): 89-96.
［6］	Cai B, Tang B, Zhang T, et al. A Novel Motor-driven Flow Diverter with an Enclosed Structure［C］//17th International Conference on Flow Measurement (FLOMEKO’2016), Sydney, Australia. 2016.
［7］	朱雷, 张建光, 张海平, 等. 水流量标准装置的高精度换向器设计［J］. 排灌机械工程学报, 2014, 32(6):511- 516.
	Zhu L, Zhang J G, Zhang H P, et al. Design of highly-accuracy diverter for primary water flow standard facility［J］. Journal of Drainage and Irrigation Machinery Engineering, 2014,32(6):511-516.
［9］	Engel R. Adjusting the flow diverter's timer actuation in liquid flow calibration facilities-Numerical corrections vs. “zero-error” adjustment of timer actuation［C］//The 18th International Symposium for Fluid Flow Measurement (l8th ISFFM), Colorado Springs. 2012.
［14］	ISO 4185 Measurement of liquid flow in closed conduits. Weighing methods［S］.
［15］	海宁, 王胜强, 马春歌, 等.一种用于提高流量标准装置准确度的换向器:202010330670.5［P］. 2020-04-24.
［16］	沈理. 一种稳定的流体场换向器:202022811160.8［P］. 2020-11-27.
［3］	Cheong K H, Doihara R, Shimada T, et al. Development of a gravimetric system using a conical rotating double-wing diverter for low liquid flow rates［J］. Flow Measurement and Instrumentation, 2017, 56: 1-13.
［12］	钱碧波, 万勇, 吴波, 等. 新型水大流量标准装置换向性能评价技术研究［J］. 电子测量与仪器学报, 2021, 35(11):47-53.