基于CFD的旋进旋涡流量计结构改进设计

doi:10.3969/j.issn.0438-1157.2014.08.016

化工学报 ›› 2014, Vol. 65 ›› Issue (8): 2963-2969.DOI: 10.3969/j.issn.0438-1157.2014.08.016

基于CFD的旋进旋涡流量计结构改进设计

崔宝玲¹, 陈坤¹, 朱林杭², 陈德胜¹, 黄敦回³

1 浙江理工大学浙江省流体传输技术研究重点实验室, 浙江杭州 310018;
2 浙江大学竺可桢学院1201, 浙江杭州 310027;
3 杭州冠一流体技术有限公司, 浙江杭州 310019

收稿日期:2013-10-31 修回日期:2014-02-10 出版日期:2014-08-05 发布日期:2014-08-05
通讯作者: 崔宝玲
基金资助:
国家自然科学基金项目（21276241，51106141）；浙江理工大学521人才培养计划项目；浙江省科技计划公益性项目（2014C31116）.

Improvement of structure design on swirl meter based on CFD

CUI Baoling¹, CHEN Kun¹, ZHU Linhang², CHEN Desheng¹, HUANG Dunhui³

1 Provincial Key Laboratory of Fluid Transmission Technology, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China;
2 Chu Kochen Honors College 1201, Zhejiang University, Hangzhou 310027, Zhejiang, China;
3 Hangzhou Guanyi Fluid Technology Company Limited, Hangzhou 310019, Zhejiang, China

Received:2013-10-31 Revised:2014-02-10 Online:2014-08-05 Published:2014-08-05
Supported by:
supported by the National Natural Science Foundation of China (21276241, 51106141), the Project of 521 Talents Cultivation in Zhejiang Sci-Tech University and the Zhejiang Provincial Science and Technology Project (2014C31116).

摘要/Abstract

摘要： 为了减少150 mm口径旋进旋涡流量计的压损，提出了增加流量计起旋器导程和壳体喉部直径两种方案，在120～2100 m³·h^-1流量范围内，采用数值模拟和实验的方法研究了改进前后旋进旋涡流量计的压损特性与仪表系数，并对旋进旋涡流量计中压电传感器所在截面的内部流动特性进行了分析。通过数值模拟研究发现：两种方案均能降低流量计压损，但流量计的仪表系数均降低，不利于小流量的测量，且仪表系数精确度也有所变化。若仅考虑降低压损，同时增加导程和喉部直径比仅增加导程好。最后在音速喷嘴装置上对两种方案进行了实验，发现实验数据和数值计算结果变化趋势一致，达到了对流量计参数优化提高流量计性能的目的。

关键词: 旋进旋涡流量计, 压力损失, 仪表系数, 数值模拟, 测量, 实验验证

Abstract: In order to reduce the pressure loss of 150-caliber swirl meter, two programs of increasing the lead of swirler and the throat diameter of casing were adopted to improve the performance of swirl meter. In the flow range from 120 m³·h^-1 to 2100 m³·h^-1, numerical simulation and experiment were conducted to study the pressure loss characteristics and meter factor of the swirl meter before and after improvement, and internal flow characteristics of the section where piezoelectric sensors were located was analyzed. Through numerical simulation it was found that these two programs could reduce the pressure loss of swirl meter, but meter factor decreased with degraded precision. Small flow measurement could not be applicable because of the decrease of meter factor. If only considering the factor of pressure loss, program B (increasing the lead and the throat diameter) was better than the program A (only increasing the lead). The experiments were performed on sonic nozzle device to verify simulation results of two programs. The experimental results of pressure loss and meter factor basically agreed with numerical simulation results.

Key words: swirl meter, pressure loss, meter factor, numerical simulation, measurement, experimental validation

中图分类号:

TH814

崔宝玲, 陈坤, 朱林杭, 陈德胜, 黄敦回. 基于CFD的旋进旋涡流量计结构改进设计[J]. 化工学报, 2014, 65(8): 2963-2969.

CUI Baoling, CHEN Kun, ZHU Linhang, CHEN Desheng, HUANG Dunhui. Improvement of structure design on swirl meter based on CFD[J]. CIESC Journal, 2014, 65(8): 2963-2969.

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基于CFD的旋进旋涡流量计结构改进设计

Improvement of structure design on swirl meter based on CFD

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