Finite Element Analysis of the Effect of Internal Pressure on Orifice Flowmeter
American Journal of Mechanical and Industrial Engineering
Volume 4, Issue 4, July 2019, Pages: 52-63
Received: Sep. 20, 2019;
Accepted: Oct. 7, 2019;
Published: Oct. 20, 2019
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Lianghuai Tong, Quzhou Special Equipment Inspection Center, Quzhou, China
Sulu Zheng, Quzhou Special Equipment Inspection Center, Quzhou, China
Xiuqin Chen, College of Mechanical Engineering, Quzhou University, Quzhou, China
Jian Fan, College of Mechanical Engineering, Quzhou University, Quzhou, China
Shuyuan Wang, College of Mechanical Engineering, Quzhou University, Quzhou, China
Jinfu Li, College of Mechanical Engineering, Quzhou University, Quzhou, China
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The flow rate in a closed pipe is a dynamic value, the instrument for measuring the flow rate is called a flowmeter. Typical flowmeters are: differential pressure flowmeter, electromagnetic flowmeter, coriolis mass flowmeter, vortex flowmeter, ultrasonic flowmeter, etc. Among them, differential pressure flowmeter, represented by orifice flowmeter, is the mainstream flowmeter applied at home and abroad. Orifice flowmeter has the advantages of simple structure, low cost and stable performance, it is widely used in chemical industry, electric power, heating, water supply and other fields, and can be used to measure the flow of different media. When the fluid filled with pipeline flows through the orifice plate, it will produce local contraction, concentration of flow beam, increase of flow velocity, and decrease of static pressure, so there will be a static pressure difference before and after the orifice plate. The orifice flowmeter is equipped with an orifice plate on the pipeline, and the orifice plate is connected with pressure measuring tubes on both sides, and they are respectively connected with a U-type pressure differential meter. Orifice flowmeter uses the throttling effect of fluid through the sharp hole to increase the flow velocity and decrease the pressure, resulting in the pressure difference between front and back orifice plates, as the basis of measurement. In this paper, to study the influence of different pressure loads on the accuracy of the orifice flowmeter, the mathematical model is established by simulation software, and the different pressure loads of the orifice flowmeter are analyzed under the temperature load of 20°C. The results show that the location of the orifice flowmeter under the maximum stress, maximum displacement and maximum strain under the pressure load of 0.1 MPa is different from that under the pressure load of 50 MPa and 100 MPa. When the pressure loads are respectively 0.1 MPa, 50 MPa, and 100 MPa, the location of maximum stress and displacement of the orifice flowmeter are the same.
Orifice Flowmeter, Finite Element, Load, Maximum Stress
To cite this article
Finite Element Analysis of the Effect of Internal Pressure on Orifice Flowmeter, American Journal of Mechanical and Industrial Engineering.
Vol. 4, No. 4,
2019, pp. 52-63.
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
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Pang Haiming. The method of improving the measuring accuracy of orifice flowmeter [J]. Chemical automation and instrument, 2018, 45 (12): 925-928.
He Yunqi. Elementary discussion on factors affecting the accuracy of gas flow measurement by standard orifice flowmeter and corresponding measures [J]. Measurement and testing technology, 2019, 46 (06): 73-75.
Ma Yanjie, Wei Xinchen, Tang Gaofeng. Design and application of underground small orifice flowmeter [J]. Machine Tool and Hydraulic, 2018, 46 (10): 84-87.
Zhao Wanxing, Zheng Wei, Wang Gang. Research and application of energy efficiency testing of differential pressure flowmeter [J]. metrology technology, 2016 (01): 28-29.
Liu Haiying, Jiang Li, Liang Guangchao. Error analysis of natural gas flow measurement [J]. Measurement and test technology, 2016, 43 (06): 52-53.
Yang Fan. Error Analysis of Natural Gas Measurement [J]. Chemical Design Communication, 2018, 44 (07): 208.
Sun Ning. Study on the factors influencing the error of differential pressure orifice flowmeter [J]. Management and Technology of Small and Medium-sized Enterprises (Late issue), 2019 (07): 153-154.
Zheng Boren. Measurement error of orifice flowmeter and its causes and solutions [J]. Chemical Design Communication, 2017, 43 (12): 112.
Yang Jinghua, Bu Xing Qi. Problems and solutions in the measurement of natural gas flowmeter [J]. petrochemical technology, 2018, 25 (03): 28.
Li Ting. Trial analysis and correction of the orifice flowmeter error [J]. Chemical Management, 2018, (28): 77-78.
Chen Ying. Cause Analysis and Correction of the orifice flowmeter Error [J]. New Technologies and Products of China, 2016, (05): 31.
Yang Gulati, Li Mingxia. Simulation of flow field inside orifice flowmeter [J]. Gansu Science Journal, 2015, 27 (06): 79-81, 106.
He Liufang. Three-dimensional technology discussion based on SolidWorks software [J]. Southern Agricultural Machinery, 2018, 49 (21): 135, 137.
Chen Yongdang, Bao Zhiqiang, Ren Huijuan. Finite element analysis of product design based on SolidWorks simulation [J]. Computer technology and development, 2012, 22 (09): 177-180.