船用法兰铸钢截止阀流通特性分析和结构优化

兰州理工大学学报 ›› 2023, Vol. 49 ›› Issue (4): 61-67.

船用法兰铸钢截止阀流通特性分析和结构优化

金维增^*1, 张力², 张希恒³

1.抚顺职业技术学院机械与电子工程系, 辽宁抚顺 113122;
2.沈阳三三牌阀门制造有限责任公司, 辽宁沈阳 110179;
3.兰州理工大学石油化工学院, 甘肃兰州 730050

收稿日期:2021-10-21 出版日期:2023-08-28 发布日期:2023-08-29
通讯作者: 金维增(1985-),男,辽宁抚顺人,讲师. Email:jinweizheng1010@163.com
基金资助:
辽宁省教育厅项目(FZS20202)

Analysis of flow characteristics and structure optimization of marine flange cast steel globe valve

JIN Wei-zeng¹, ZHANG Li², ZHANG Xi-heng³

1. Department of Mechanical and Electronic Engineering, Fushun Vocational Technical College, Fushun 113122, China;
2. Shenyang Sansan Brand Valve Manufacturing Co. Ltd., Shenyang 110179, China;
3. School of Petrochemical Engineering, Lanzhou Univ. of Tech., Lanzhou 730050, China

Received:2021-10-21 Online:2023-08-28 Published:2023-08-29

摘要/Abstract

摘要： 以DN65船用法兰铸钢波纹管截止阀为例,应用Flow-Simulation软件对其在全开状态下进行流阻系数有限元分析,模拟流场特性,计算流阻系数和流量系数,并依据GB/T30832对其进行实验验证,二者结果相吻合,表明数值模拟计算和方法正确.根据流场云图发现,阀体是影响阀门流阻系数和流量系数的关键因素.分析阀体流道结构对介质流动影响的同时,在阀体结构长度不变的情况下优化阀体流道结构,降低两端压力损失,进而大幅度地降低船用法兰铸钢波纹管截止阀流阻系数,提高流通能力,并通过实验进一步验证,这对阀门的优化设计尤其对直通截止阀具有重要意义.

关键词: 截止阀, 流通特性, 流阻系数, 流量系数, 优化设计, 数值模拟

Abstract: Taking DN65 marine flange cast steel bellows globe valve as an example, the finite element analysis of the flow resistance coefficient in the fully open state was carried out using Flow-Simulation software, and the flow resistance coefficient and flow coefficient were then calculated, followed by the experimental verification according to the GB/T30832 standard. The results show that the two results are consistent, demonstrating the accuracy of the numerical simulation and the method. According to the flow chart, it is found that the body of the valve is the key factor affecting the flow resistance coefficient and flow coefficient. Then, the effect of the body flow structure on the medium flow was analyzed. Meanwhile, remaining the length of the valve body structure was unchanged, the structure of the valve port was optimized, and the pressure loss on both ends was reduced, which in turn greatly reduce the cut-off valve flow resistance coefficient of the marine flange cast steel corrugated pipe, and improve its flow capacity. Finally, further verification was performed by the experimental method, which is of great significance to the optimization design of the valve, especially for straight-through globe valves.

Key words: globe valve, circulation characteristics, flow resistance coefficient, discharge coefficient, optimization design, numerical simulation

中图分类号:

TH134

金维增, 张力, 张希恒. 船用法兰铸钢截止阀流通特性分析和结构优化[J]. 兰州理工大学学报, 2023, 49(4): 61-67.

JIN Wei-zeng, ZHANG Li, ZHANG Xi-heng. Analysis of flow characteristics and structure optimization of marine flange cast steel globe valve[J]. Journal of Lanzhou University of Technology, 2023, 49(4): 61-67.

参考文献

[1] 金维增,张力,陈增斌,等.截止阀中波纹管的强度校核及其结构保护措施 [J].管道技术与设备,2020(4):44-48.
[2] 陆培文.阀门设计入门与精通 [M].北京:机械工业出版社,2009.
[3] 崔宝玲,马光飞,王慧杰,等.阀芯结构对节流截止阀流阻特性和内部流动特性的影响 [J].机械工程学报,2015,51(12):178-184.
[4] 周世豪,刘兴玉,于强伟,等.船用法兰截止阀低流阻结构设计对比研究 [J].化工机械,2017,44(3):340-344.
[5] 陈瑜,魏文鹏,张立祥,等.基于Fluent的截止阀壳内流道流场分析 [J].煤矿机械,2013,34(10):90-91.
[6] 王洪申,张家振,陈杰.柱塞式调节阀壁面粗糙度对流量系数影响的数值模拟研究 [J].流体机械,2020,48(9):29-34.
[7] 袁新明,毛根海,张土乔.阀门流道流场的数值模拟及阻力特性研究 [J].水力发电学报,1999,67(4):60-66.
[8] AN Y J,KIM B J,SHIN B R.Numerical analysis of 3-D flow through LNG marine control valves for their advanced design [J].Journal of Mechanical Science and Technology,2008,22(10):1998-2005.
[9] 张伟政,赵志琦,邱晓来,等.介质流向对截止阀流场和流阻特性的影响 [J].甘肃科学学报,2017,29(1):92-95.
[10] 王振波,张兆伟,韩廷忠,等.截止阀特性测试与研究 [J].阀门,2001(6):19-22.
[11] 孙超杰,孙佳丽,朱明华.升降式止回阀流阻影响因素数值模拟分析与研究 [J].阀门,2017(1):17-19.
[12] 林金国,曾小林,童小川,等.大型高压蒸汽阀流量特性的数值模拟 [J].流体机械,2015,43(2):56-59.
[13] 朱祖超,林哲.流程阀门流体动力学 [M].北京:机械工业出版社,2019.
[14] 李华良,张鹏,万攀,等.截止止回阀流动优化仿真分析研究 [J].石油和化工设备,2015,18(9):12-16.
[15] 伍悦滨,曹慧哲.工程流体力学(水力学) [M].北京:中国建筑工业出版社,2018.
[16] 全国阀门标准化技术委员会.阀门流量系数和流阻系数试验方法:GB/T 30832—2014 [S].北京:中国标准出版社,2014.
[17] 吴磊,李莹莹,张建斌.阀门流阻测试与流量计检定装置的设计 [J].阀门,2017(4):17-19.
[18] 唐政,王秋林.核电站Y形截止阀流阻系数的研究 [J].阀门,2018(1):14-17.
[19] 宋志伟,崔宝玲,尚照晖,等.截止阀启闭过程内部瞬态流动特性 [J].工程热物理学报,2012,33(6):957-960.