根据某地下石油库复杂洞室通风设计、通风优化的实际情况,结合以前洞室施工的经验,总结了提高通风效率的一些措施与认识。内容涉及到有效风流长度、风流路径、季节对通风的影响、通风风速、风管及其布置、风机布置诸方面,特别提到了计算机数值方法预先模拟通风效果的重要性,其不但可以预先评估通风方案设计,还可以在施工期间优化通风措施,结果涉及到流场分布、污染气体的排出过程,定量分析不同路径的排烟效果等诸方面。实践证明数值模拟方法是研究、解决通风问题的有效手段,对类似地下洞室施工的通风设计与布置有参考价值。
Abstract
The measures of improving ventilation efficiency are summarized in terms of effective length of air flow, air flow tracks, impacts of different seasons on ventilation, wind speed, and arrangements of air ducts and fans. The design and optimization of ventilation in a complex underground oil-storage cavern is taken as an example. The importance of numerical simulation is especially emphasized. It could assess and optimize ventilation schemes, calculate the distribution of flow field, and analyze the effects of different ventilation passages. Experiences showed that numerical simulation method is an effective method of solving ventilation problems.
关键词
通风效率 /
复杂洞室施工 /
通风设计 /
优化通风措施
Key words
ventilation efficiency /
construction of complex cavern /
ventilation design /
optimization of ventilation
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 吴中立. 独头巷道爆破后通风 [M]. 北京: 冶金工业出版社, 1959: 11-13.(WU Zhong-li. Ventilation in Heading Face after Blasting [M]. Beijing: Metallurgical Industry Press, 1959: 11-13.( in Chinese))
[2] 郭志武. 隧道施工通风压入式风管管口射流射程计算方法探讨[J]. 隧道建设, 2003, 23(5): 42-45.(GUO Zhi-wu. Discussion on the Effective Length of Jet Flow of Forced Ventilation in Tunnel Construction Period [J]. Tunnel Construction, 2003, 23 (5): 42-45.(in Chinese))
[3] 李仲奎, 马吉明, 张 明. 水力发电建筑物 [M]. 北京: 清华大学出版社, 2007: 23-24.(LI Zhong-kui, MA Ji-ming, ZHANG Ming. Hydropower Structures [M]. Beijing: Tsinghua University Press, 2007: 23-24.(in Chinese))
[4] NAN Chun-zi, MA Ji-ming, LUO Zhao. Numerical Simulation of Impacts of Different Types of Air Duct Outlets on Ventilation [C]∥Proceedings of the 2nd International Conference on Civil Engineering, Architecture and Sustainable Infrastructure, Zhengzhou, China, July 13-15, 2013.
[5] SL378—2007,水工建筑物地下开挖工程施工技术规范[S]. 北京: 中国水利水电出版社, 2007:53.(SL378—2007, Technical Specifications on Construction of Underground Excavation of Hydraulic Structures [S]. Beijing: China Water Power Press, 2007: 53.(in Chinese))
[6] PARRA M T, VILLAFRUELA J M, CASTRO F, et al. Numerical and Experimental Analysis of Different Ventilation Systems in Deep Mines[J]. Building and Environment, 2006,41(2): 87-93.
[7] NAKAYAMA S, UCHINO K, INOUE M. In-situ Measurement and Simulation by CFD of Methane Gas Distribution at a Heading Faces[J]. Shigen-to-Sozai, 1998, 114(11): 769-775.
[8] 王晓玲, 陈红超, 刘雪朋, 等. 引水隧洞独头掘进工作面风流组织与CO扩散的模拟 [J]. 水利学报, 2008, 39(1): 121-127.(WANG Xiao-ling, CHEN Hong-chao, LIU Xue-peng, et al. Simulation on Ventilation Airflow and CO Diffusion in Leading Face of Excavation in Tunnel [J].Journal of Hydraulic Engineering,2008,39(1):121-127.(in Chinese))
[9] 刘 钊, 陈兴周, 冯 璐, 等. 长隧道独头掘进压入式施工通风数值模拟 [J].西北水电,2012,(1):66-69.(LIU Zhao, CHEN Xing-zhou, FENG Lu,et al. Simulation of Values of Forced Ventilation for Construction of Long Tunnel Excavated from a Single End [J]. Northwest Hydropower, 2012, (1): 66-69.(in Chinese))
[10]王海桥. 掘进工作面射流通风流场研究 [J]. 煤炭学报, 1999, 24(5): 498-501.(WANG Hai-qiao. Study on Jet Ventilation Flow field in Heading Face [J]. Journal of China Coal Society, 1999, 24(5): 498-501.(in Chinese))
PDF(1307 KB)
