|本期目录/Table of Contents|

[1]杨腾龙,王兆丰,陈金生,等.淹没条件对连续射流破碎含瓦斯煤效率影响研究[J].中国安全生产科学技术,2019,15(1):100-106.[doi:10.11731/j.issn.1673-193x.2019.01.016]
　YANG Tenglong,WANG Zhaofeng,CHEN Jinsheng,et al.Study on influence of submerged conditions on efficiency of breaking coal containing gas by continuous jet[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2019,15(1):100-106.[doi:10.11731/j.issn.1673-193x.2019.01.016]
点击复制

淹没条件对连续射流破碎含瓦斯煤效率影响研究
分享到：

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
15
期数:
2019年1期
页码:
100-106
栏目:
职业安全卫生管理与技术
出版日期:
2019-01-31

文章信息/Info

Title:
Study on influence of submerged conditions on efficiency of breaking coal containing gas by continuous jet
文章编号:
1673-193X(2019)-01-0100-07
作者:
杨腾龙1; 王兆丰1; 2; 陈金生1; 王龙1
（1.河南理工大学 安全科学与工程学院，河南 焦作 454000；2.煤矿灾害预防与抢险救灾教育部工程研究中心，河南 焦作 454000）
Author(s):
YANG Tenglong1;  WANG Zhaofeng1; 2;  CHEN Jinsheng1;  WANG Long1
(1. College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo Henan 454000, China;2. MOE Engineering Research Center of Coal Mine Disaster Prevention and Emergency Rescue, Jiaozuo Henan 454000, China)
关键词:
淹没条件; 射流破煤; 流固耦合; 破煤效率
Keywords:
submerged condition;  coal breaking by jet;  fluidstructure coupling;  efficiency of breaking coal
分类号:
X936；TD713
DOI:
10.11731/j.issn.1673-193x.2019.01.016
文献标志码:
A
摘要:
为研究淹没条件对射流破煤效率的削弱程度，基于ALE算法，借助Ansys/Lsdyna模拟软件，建立围压状态下非淹没及淹没射流破碎含瓦斯煤体流固耦合模型，通过动态追踪破碎坑体单元失效演化过程及内部应力分布等瞬时信息，探讨2种射流状态下破煤成坑过程及破煤效率的差异。研究结果表明：淹没射流与非淹没射流两者破煤坑体形态差异显著，非淹没射流条件下射流破煤坑体断面较窄，深度较深，破煤效率前后阶段差别不大；淹没射流条件下射流破煤坑体断面较宽，深度较浅，在初始阶段形成漏斗状的破碎坑体，而后逐渐向下延伸，在0～100 μs内破煤效率最高；相同工况、同一时间内，淹没射流平均破煤深度是非淹没射流平均破煤深度的41.46%。研究结果可为水射流技术的现场应用提供参考依据。
Abstract:
In order to study the weakening degree of submerged conditions on the efficiency of breaking coal by jet, a fluidstructure coupling model of breaking the coal containing gas by the nonsubmerged and submerged jet under the confining pressure was established based on the ALE algorithm by using the Ansys/Lsdyna simulation software. The difference in pit formation process and efficiency of breaking coal under two types of jet status was discussed through dynamically tracking the failure evolution process of the broken pit body units and the instantaneous information such as the internal stress distribution, etc. The results showed that the difference in the pit body shape of breaking coal by the submerged jet and nonsubmerged jet was significant. The section of pit body of breaking coal by the nonsubmerged jet was narrower, the depth was larger, and the efficiency of breaking coal had little difference in the previous and later period. The section of pit body of breaking coal by the submerged jet was wider, the depth was smaller, and the funnelshaped breaking pit body formed in the initial period, then it extended downward gradually, while the efficiency of breaking coal was the highest at 0~100 μs. Under the same conditions and time, the average depth of breaking coal by the submerged jet was 41.46% of that by the nonsubmerged jet. The results can provide the reference for the field application of water jet technology.

参考文献/References:

［1］沈忠厚.石油工程水射流技术［J］. 中国安全科学学报，1999(S1):90. SHEN Zhonghou. Water jet technology in petroleum engineering［J］.China Safety Science Journal，1999(S1)：90.
［2］刘玉洲, 陆庭侃, 孙玉宁. 自进式水射流钻进技术在煤层气开发中的应用［J］. 河南理工大学学报（自然科学版）, 2005, 24(5):341-346. LIU Yuzhou, LU Tingkan, SUN Yuning. Application ofself-advanced water jet drilling technology in coalbed methane exploration［J］. Journal of Henan Polytechnic University（Natural Science），2005, 24(5):341-346.
［3］王庆国. 高压水射流在我国隧、桥维护中的应用［J］. 中国安全科学学报, 1999, 9(S1):87，104. WANG Qingguo. Application of high pressure water jet in maintenance of tunnel and bridge in China［J］. China Safety Science Journal, 1999，9(S1):87，104.
［4］刘彦伟, 任培良, 夏仕柏, 等. 水力冲孔措施的卸压增透效果考察分析［J］. 河南理工大学学报（自然科学版）, 2009, 28(6):695-699. LIU Yanwei, REN Peiliang, XIA Shibai, et al. Analysis of pressure-relief and permeability improvement effect of hydraulic flushing［J］. Journal of Henan Polytechnic University（Natural Science），2009，28(6):695-699.
［5］韩颖，宋德尚. 低渗煤层高压水射流割缝增透技术试验研究［J］. 中国安全生产科学技术，2014， 10(12):35-39. HAN Ying, SONG Deshang. Experimental study onpermeability improvement technology by cutting seam using high pressure water jet in coal seam with low permeability［J］. Journal of Safety Science and Technology, 2014,10(12):35-39.
［6］姚粟，邓松圣，管金发. 淹没水射流切割技术研究进展［J］. 煤矿机械，2018，39(1):35-36. YAO Su, DENG Songsheng, GUAN Jinfa. Researchprogress of submerged water jet cutting technology［J］.Coal Mine Machinery, 2018,39(1):35-36.
［7］王宗龙，胡寿根，姚文龙. 淹没条件下超高压磨料水射流切割岩石的实验研究［J］. 水动力学研究与进展，2009，24(2):150-155. WANG Zonglong, HU Shougen，YAO Wenlong. Experimental research of ultra-high pressure abrasive water jet cutting rock in submerged environment［J］.Chinese Journal of Hydrodynamic, 2009,24(2):150-155.
［8］康旭. 淹没式磨料水射流切割装置设计及实验研究［D］. 大连：大连海事大学，2017.
［9］廖华林，李根生.淹没条件下超高压水射流冲蚀切割破岩实验研究［J］.天然气工业，2006，26(5): 61-62. LIAO Hualin, LI Gensheng. Experimental study on rock breaking and erosion by ultra-high pressure water jet under the submerged condition［J］. Natural Gas Industry,2006，26(5)：61-62.
［10］王瑞和，李罗鹏，周卫东，等. 磨料射流旋转切割套管试验及工程计算模型［J］. 中国石油大学学报（自然科学版），2010，34(2): 56-61. WANG Ruihe，LI Luopeng，ZHOU Weidong，et al.Experiment and mathematical model of rotary cutting of casing with abrasive water jet［J］.Journal of China University of Petroleum（Edition of Natural Science）, 2010,34(2): 56-61.
［11］司鹄，王丹丹，李晓红. 高压水射流破岩应力波效应的数值模拟［J］. 重庆大学学报，2008, 31(8):942-945，950. SI Hu,WANG Dandan, LI Xiaohong. Stress wave effectin numerical simulation on rock breaking under high-pressure water jet［J］. Journal of Chongqing University，2008, 31(8)：942-945，950.
［12］刘佳亮，司鹄. 高压水射流破碎高围压岩石损伤场的数值模拟［J］. 重庆大学学报，2011，34(4):40-46. LIU Jialiang, SI Hu. Numerical simulation on damage field of high pressure water jet breaking rock under high ambient pressure［J］. Journal of Chongqing University，2011,34(4):40-46.
［13］张宏. 淹没条件下水射流破岩效率数值模拟［D］. 重庆：重庆大学，2012.
［14］高激飞，胡寿根，宁原林.基于CFD的淹没磨料射流的数值模拟与流动特性研究［J］.中国机械工程，2003，14(14): 1188-1191. GAO Jifei, HU Shougen, NING Yuanlin. Numerical simulation and flow characteristics of submerged abrasive jet based on CFD［J］. China Mechanical Engineering, 2003,14(14): 1188-1191.
［15］兰华菊.空化水射流破岩实验研究及机理分析［D］. 重庆：重庆大学，2007.

相似文献/References:

[1]温志辉,梁博臣*,刘笑天.磨料特性对磨料气体射流破煤影响的实验研究[J].中国安全生产科学技术,2017,13(5):103.[doi:10.11731/j.issn.1673-193x.2017.05.017]
　WEN Zhihui,LIANG Bochen,LIU Xiaotian.Experimental study on influence of abrasive characteristics on coal breaking by abrasive gas jet[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(1):103.[doi:10.11731/j.issn.1673-193x.2017.05.017]

备注/Memo

备注/Memo:
收稿日期： 2018-10-10
基金项目： 国家自然科学基金项目(51274090)；河南省高校科技创新团队支持计划项目（17IRTSTHN030）；河南省高等学校重点科研项目(19B440002)
作者简介： 杨腾龙，硕士研究生，主要研究方向为瓦斯灾害预测与防治。
更新日期/Last Update: 2019-01-31