Article(id=1242131986744156886, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242131969086141360, articleNumber=null, orderNo=11, doi=10.3981/j.issn.1000-7857.2014.14.009, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1395849600000, receivedDateStr=2014-03-27, revisedDate=1396972800000, revisedDateStr=2014-04-09, acceptedDate=null, acceptedDateStr=null, onlineDate=1401339652030, onlineDateStr=2014-05-29, pubDate=1400342400000, pubDateStr=2014-05-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1401339652030, onlineIssueDateStr=2014-05-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774076943331, creator=sys-migrate, updateTime=1774076943331, updator=sys-migrate, issue=Issue{id=1242131969086141360, tenantId=1146029695717560320, journalId=1146031591421210625, year='2014', volume='32', issue='14', pageStart='1', pageEnd='95', issueExtLink='null', onlineDate='null', pubDate='1400342400000', pubDateStr='2014-05-18', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774076939122, creator='sys-migrate', updateTime=1774076939122, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=59, endPage=63, ext={EN=ArticleExt(id=1242131990791663617, articleId=1242131986744156886, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Electrostatic Voltage Test of Coal Mine Gas Drainage Pipeline of PVC, columnId=1242116080374710456, journalTitle=Science & Technology Review, columnName=Articles, runingTitle=null, highlight=null, articleAbstract=Electrostatic discharge caused by strong electrostatic voltage due to charge accumulation on the PVC pipe wall has potential damages to coal mine gas drainage. In this paper, a set of device is built to test the electrostatic voltage of the PVC pipe during coal mine gas drainage process, and effective ignition energy of electrostatic discharge is calculated. The test results show that with variation of the gas flow velocity, PVC pipe diameter, and gas concentration, the electrostatic voltage of the PVC pipe increases gradually with time at the beginning, and then tends to be stable. Due to friction between the gas and PVC pipe wall, charge accumulation on the wall causes strong electrostatic field of more than 20 kV/m. With the minimum ignition energy of 0.28 mJ for methane taken as the standard, the effective ignition energy for electrostatic discharge in PVC pipe is usually less than 0.28 mJ, which is under safe conditions. However, at some moments, the effective ignition energy is larger than the safe value, making the gas in the minimum ignition energy range of explosion. This study may provide scientific basis for anti-static measures during coal mine gas extraction., authors=YUE Gaowei, XU Mengfei, BI Wei, authorsList=YUE Gaowei, XU Mengfei, BI Wei, authorCompany=School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=5ZkKnojTOnWAc05hK6ha7w==, pdfFileSize=3663710, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1242131989566923491, articleId=1242131986744156886, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=煤矿井下瓦斯抽采PVC管静电场试验, columnId=1146540929516700224, journalTitle=科技导报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=针对矿井瓦斯抽采在PVC 管壁电荷积聚产生强静电场而导致静电放电的危害，通过搭建塑性管瓦斯流动静电场测试装置，模拟测试瓦斯流动过程中塑性管道的静电场，同时数值计算静电放电有效点火能量。研究结果表明，改变瓦斯流速、管径和瓦斯浓度，PVC 管静电场总体趋势是开始时电场随时间逐渐增大，而后趋于稳定，流动瓦斯与PVC 管壁面摩擦产生电荷积聚而导致的静电场可达20 kV/m 以上。以甲烷的最小点燃能量0.28 mJ 为标准，大多时刻PVC 管静电放电有效点火能量小于0.28mJ，处于安全状态，但某些时刻有效点火能量大于0.28 mJ，使得瓦斯处于爆炸的最小点火能量范围。从试验分析瓦斯抽采PVC 管静电场及有效点火能量，可为矿井瓦斯抽采防静电措施提供科学依据。, authors=岳高伟, 许梦飞, 毕伟, authorsList=岳高伟, 许梦飞, 毕伟, authorCompany=河南理工大学土木工程学院, 焦作 454000, correspAuthors=null, authorNote=岳高伟，副教授，研究方向为矿业安全与防治，电子信箱：mxlygw@163.com, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=AQqv7atS9vKM9vpzOH2A/w==, pdfFileSize=3663710, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=国家自然科学基金项目（51274090）；中国博士后科学基金项目（2013M531673）；河南省高等学校深部矿井建设重点学科开放实验室基金项目（2013KF-01）)}, authors=null, keywords=[Keyword(id=1242131989155881691, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242131986744156886, language=CN, orderNo=1, keyword=PVC 管), Keyword(id=1242131989239767773, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242131986744156886, language=CN, orderNo=1, keyword=瓦斯抽采), Keyword(id=1242131989332042463, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242131986744156886, language=CN, orderNo=1, keyword=静电场), Keyword(id=1242131989411734241, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242131986744156886, language=CN, orderNo=1, keyword=有效点火能量), Keyword(id=1242131990401594363, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242131986744156886, language=EN, orderNo=1, keyword=PVC pipe), Keyword(id=1242131990477091837, tenantId=1146029695717560320, 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