流量控制、测量及可视化(英文)最新文献_第8页

A New Type of Flow Measurement Device 一种新型流量测量装置

流量控制、测量及可视化(英文) Pub Date : 2023-01-01 DOI: 10.21014/tc9-2022.037

Y. Liu, Lide Fang

{"title":"A New Type of Flow Measurement Device","authors":"Y. Liu, Lide Fang","doi":"10.21014/tc9-2022.037","DOIUrl":"https://doi.org/10.21014/tc9-2022.037","url":null,"abstract":"Flow measurement plays an important role in industrial production, process control and energy utilization. The steam flow is affected by the state of steam properties and the design of the steam flowmeter during the measurement process, resulting in low measurement accuracy. Based on the combined measurement method of differential pressure flowmeter and vortex flowmeter, an integrated flow measurement device that integrates averaging-velocity tube and piezoelectric vortex flowmeter is proposed in this paper. It combines the structural features and advantages of the two flowmeters scientifically. In this paper, the differential pressure transmitter is used to detect the pressure difference on both sides of the cylinder. Due to fluid vibration and piezoelectric effect, the probe in the device generates regular vibration. And combined with Digital Signal Processing (DSP) technology and automatic frequency band adjustment method, the flexibility and stability of frequency signal processing are improved. The measurement performance of the device was evaluated in this paper. The experimental results show that the absolute value of the relative error of the device is within 1.00% and 1.50% under the conditions of single-phase water and single-phase gas, respectively. The device can achieve dual-signal measurement, and it has the advantages of wide applicability, good stability and strong anti-interference, which will provide a new design idea for the measurement of saturated wet steam.","PeriodicalId":62400,"journal":{"name":"流量控制、测量及可视化(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79529181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Numerical Study on the Influence of Temperature on the Measurement Performance of liquid lead-bismuth_x005f_x0002_eutectic (LBE) Electromagnetic-flowmeter 温度对液态铅铋共晶(LBE)电磁流量计测量性能的影响

流量控制、测量及可视化(英文) Pub Date : 2023-01-01 DOI: 10.21014/tc9-2022.023

Xuejing Li, Xinhong Yao, Haiyang Li

引用次数: 0

Optimization of electrode and contraction section of 90° bent electromagnetic flowmeter using CFD simulation 90°弯曲电磁流量计电极及收缩段CFD仿真优化

流量控制、测量及可视化(英文) Pub Date : 2023-01-01 DOI: 10.21014/tc9-2022.046

Weijie Chen, Haohao Xu, Chengxu Tu, Xianfeng Li, Wenkun Gao, Jianli Zhang, Xiang Li, F. Bao

引用次数: 0

Probe into methods about the comparison of gas flowmeters 探讨了气体流量计的比较方法

流量控制、测量及可视化(英文) Pub Date : 2023-01-01 DOI: 10.21014/tc9-2022.086

Dannal Cheng, Feng Gao, Junfeng Mao, Shih-Huang Wu, Xinli Dong, Han Zhang, Qian Zhang

引用次数: 0

Design of Flow Conditioner and Research on Evaluation of Flow Adjustment Effect 流量调节剂的设计及流量调节效果评价研究

流量控制、测量及可视化(英文) Pub Date : 2023-01-01 DOI: 10.21014/tc9-2022.007

Wenlin Chen, Chun-hong Li, Xiaoyu Li

{"title":"Design of Flow Conditioner and Research on Evaluation of Flow Adjustment Effect","authors":"Wenlin Chen, Chun-hong Li, Xiaoyu Li","doi":"10.21014/tc9-2022.007","DOIUrl":"https://doi.org/10.21014/tc9-2022.007","url":null,"abstract":"Since ultrasonic flowmeter is sensitive to the flow field. Insufficient development of the flow field such as vortex and asymmetric flow will cause deviations in the measurement results. It has become a common method to accelerate the stabilization of irregular fluids to a fully developed state by a flow conditioner. The flow conditioner is a device installed upstream of the flowmeter to accelerate the stabilization of the irregular flow field, eliminate abnormal flow, and reduce the influence of swirling flow. In practical application, the correlation between flow conditioner and flow meter model has also become an important obstacle restricting the design, compatibility and popularization of flow conditioner. It is an exploratory and meaningful work to design a universal flow conditioner and propose a flow field optimization evaluation method and other basic theories and common key technologies of flow measurement. This paper introduces the self-designed universal flow conditioner, and focuses on the flow adjustment effect evaluation method based on CFD. In order to verify the adjustment effect of the combined flow conditioner, the simulated calculation is carried out and the flow field adjustment effect is compared with that of the plate-type flow conditioner.When the inlet flow rate is 20 m/s, the simulation results show that the combined flow conditioner has excellent performance in eliminating flow field distortion at about 15D downstream the flow conditioner, while the flow velocity distribution in the axial direction can also be optimized to a fully developed symmetrical state.","PeriodicalId":62400,"journal":{"name":"流量控制、测量及可视化(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80557070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic vs constant liquid flow calibrations down to 20 nL/min 动态与恒定液体流量校准低至20 nL/min

流量控制、测量及可视化(英文) Pub Date : 2023-01-01 DOI: 10.21014/tc9-2022.135

H. Bissig, M. de Huu

引用次数: 0

Development of Dynamic Response Characteristics Calibration Device for Liquid Flowmeter 液体流量计动态响应特性标定装置的研制

流量控制、测量及可视化(英文) Pub Date : 2023-01-01 DOI: 10.21014/tc9-2022.155

Yongsheng Zhang, Yanjun Liu

引用次数: 0

Control Method And Experimental Verification Of Pipeline Flow Fluctuation Generator 管道流量波动发生器的控制方法及实验验证

流量控制、测量及可视化(英文) Pub Date : 2023-01-01 DOI: 10.21014/tc9-2022.129

Lianfeng Cheng, Chao Xing, Xiaopeng Li, Fan Chen, Huanchang Wei, T. Meng, Huichao Shi

{"title":"Control Method And Experimental Verification Of Pipeline Flow Fluctuation Generator","authors":"Lianfeng Cheng, Chao Xing, Xiaopeng Li, Fan Chen, Huanchang Wei, T. Meng, Huichao Shi","doi":"10.21014/tc9-2022.129","DOIUrl":"https://doi.org/10.21014/tc9-2022.129","url":null,"abstract":"In the actual flow measurement process, flow fluctuations often propagate in the pipeline, which may cause large deviations in the flow measurement results. In order to systematically study the influence of different flow fluctuations on the measurement results of the flowmeter, it is necessary to simulate different controllable flow fluctuations in the pipeline. This paper designs different wave control methods for a vane flow fluctuation generator, and uses LabVIEW programming to control the motor to drive the butterfly valve to swing, forming controllable flow fluctuation of sine wave, frequency conversion sine wave and variable amplitude sine wave in the pipeline. Finally, based on the hot water flow standard facility of National Institute of Metrology(NIM), a real flow experiment is designed to verify the control method of the fluctuation generator. Experimental results show that the proposed control method can control the flow fluctuation generator to generate controllable sine wave, frequency conversion wave and variable amplitude wave , and the flow fluctuation can be propagated along the pipeline upstream and downstream.","PeriodicalId":62400,"journal":{"name":"流量控制、测量及可视化(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91365579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of Uncertainty in Measurement of the Super-heated Steam Density based on Monte Carlo Method 基于蒙特卡罗方法的过热蒸汽密度测量不确定度评定

流量控制、测量及可视化(英文) Pub Date : 2023-01-01 DOI: 10.21014/tc9-2022.102

Lei Tan, Lixia Liu, Yang Liu, Yan Zou

引用次数: 0

Metrology infrastructure for high-pressure gas and liquified hydrogen flows 高压气体和液态氢流量计量基础设施

流量控制、测量及可视化(英文) Pub Date : 2023-01-01 DOI: 10.21014/tc9-2022.161

H.-B. Böckler, M. de Huu, R. Maury, S. Schmelter, M. Schakel, O. Büker

引用次数: 0