| 水幕隔尘用缝隙喷口的边界流线构造与出流速度分布 |
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| 引用本文： | 温智超,王海桥,陈世强,刘宇,蒋加川,吴朋.水幕隔尘用缝隙喷口的边界流线构造与出流速度分布[J].中国安全生产科学技术,2022,18(4):135-140. |
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| 作者姓名： | 温智超 王海桥 陈世强 刘宇 蒋加川 吴朋 |
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| 作者单位： | （1.湖南科技大学 资源环境与安全工程学院，湖南 湘潭 411201；2.湖南省矿山通风与除尘装备工程技术研究中心，湖南 湘潭 411100；3.深圳市中金岭南有色金属股份有限公司 凡口铅锌矿， 广东 韶关 512300） |
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| 基金项目： | * 基金项目: 国家自然科学基金项目（51864014）；湖南省自然科学基金项目（2019JJ60044） |
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| 摘 要： | 为解决常规水幕除尘装置阻隔巷道或隧道的问题,基于势流叠加原理,推导缝隙喷口边界流线方程,构造喷口流线型边界线.在SolidWorks中利用流线型边界线形成二维面,拉伸得到三维结构;针对该喷口及现有锥形缝隙喷口,采用CFD软件中的Realizable k-ε湍流模型,完成内部流场的数值模拟.研究结果表明:入水口附近存在流...
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| 关 键 词： | 水幕隔尘 缝隙喷口 流线构造 内流流场 出流速度 |
Boundary streamline structure and outflow velocity distribution of slot nozzle for water curtain dust isolation |
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| WEN Zhichao,WANG Haiqiao,CHEN Shiqiang,LIU Yu,JIANG Jiachuan,WU Peng.Boundary streamline structure and outflow velocity distribution of slot nozzle for water curtain dust isolation[J].Journal of Safety Science and Technology,2022,18(4):135-140. |
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| Authors: | WEN Zhichao WANG Haiqiao CHEN Shiqiang LIU Yu JIANG Jiachuan WU Peng |
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| Affiliation: | (1.College of Resources,Environment and Safety Engineering,Hunan University of Science and Technology,Xiangtan Hunan 411201,China;2.Hunan Provincial Engineering Techniques Research Centre of Mine Ventilation & Dedusting Equipment,Xiangtan Hunan 411100,China;3.Fankou Lead-zinc Mine,Shenzhen Zhongjin Lingnan Non-ferrous Metal Company Limited,Shaoguan Guangdong 512300,China) |
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| Abstract: | In order to solve the problem of conventional water curtain dedusting device blocking the roadway or tunnel,based on the principle of potential flow superposition,the boundary streamline equation of slot nozzle was deduced,and the streamlined boundary line of slot nozzle was constructed.The streamlined boundary line was used to form a two-dimensional surface and stretch to get a three-dimensional structure on SolidWorks.Furthermore,the Realizable k-ε turbulence model in CFD software was used to complete the numerical simulation of the internal flow field aiming at the nozzle and the existing conical slot nozzle.The results showed that there was the flow separation near the water inlet,which affected the velocity attenuation at the water outlet.Compared with the conventional conical nozzle,the stability of internal flow field of the streamlined slot nozzle was improved.The dispersion degree of the outflow velocity on the whole outflow curve decreased by 46.98%,and the dispersion degree of the isokinetic core area decreased by 42.93%.The conclusions can guide the research and development of slot nozzles for the water curtain dust isolation. |
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| Keywords: | water curtain dust isolation slot nozzle streamline structure internal flow field outflow velocity |
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