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当前位置:首页 > 行业资料 > 冶金工业 > 电梯风险辨识、评估及其措施-3
andperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbecarriedout;4)forspringhangers(includedsimplespring,hangersandconstantsupporthangers)itshouldalsoberecognizedassettingandlockingofloads.5)checkthesurfacequality,foldedlayeringandwithoutcracks,rustandotherdefects.5)aftercompletionofthetestandcontroldrawingnumberonebyone,byseriesbaled.Coloralloysteelparts,thepartsmarkinginstallationlocationandrotationaboutthedirectionyouwant.7.3.14.hangersinstallation7.3.14.1hangerlayouta.acleardesignofhangershouldbeinstalledstrictlyinaccordancewiththedrawingsanddesignsshallnotbeinstalledwrong,missing,etc.B.ownarrangementofpipingsupportandhangersetandselectionshouldbebasedoncomprehensiveanalysisofgenerallayoutofpipingsystems;coldinstallationofsteampipewithparticularattentionreservedforcompensationofthermalexpansiondisplacementandorientation.C.supportsystemsshouldberationaltowithstandpipeloads,staticloadandincidentalload;reasonablepipingdisplacement;guaranteedundervariousconditions,stressarewithintheallowedrange.Strength,stiffness,andmeetrequirementstopreventvibrationandsoothingwater,withoutaffectingtheadjacentequipmentmaintenanceandotherpipinginstallationandexpansion.D.equipmentconnectedtotheinterfacetomeetpipelinethrust(torque)limitrequirements;increasethestabilityofpipingsystemstopreventpipeline...Tubewallthickness(mm)2-34-67-10weldformnoslopemouthweldstrengtheningheighth(mm)1-1.51.5-2weldwidthb(mm)5-67-6hasslopemouthweldstrengtheningheighth(mm)1.5-22weldwidthb(mm)coverhadeachedgeslopemouthabout2mmargonarcweldingweldstrengtheningsurfaceheightandwidthtubewallthickness(mm)2--33--45--6weldformweldstrengtheningheighth(mm)1-1.51.5-22-2.5widthb(mm)电梯风险辨识、评估及其措施电梯的发展始终围绕着高质量、低成本、节能、环保一样,电梯更高的安全性能也是追求的目标之一,由于在用电梯还时常发生一些安全事故,因此人们还需要对这一问题进行分析、研究,找出解决问题的对策来加以预防,除了加强对电梯的安全管理之外,还需要增加相应的安全设施,这里对在用电梯所发生的一些安全事故的类型,提出针对性的预防和新的安全理念。1、坠落电梯井道事故1.1、事故现象就在用电梯发生相关的安全事故而言,已经集中反映在误入坠落井道事故,仅就南京市而言,近几年来发生误入坠落井道事故已有十多起,这仅是通过舆论公开所得到的事例。一些情况表明,许多这类安全事故并没有完全公开和统计出来,例如通常在一楼打开层门的机会最多,而大部分建筑不带地下室,底坑深度一般不超过2米,如果是从一楼发生坠落井道事故还不至于危及生命,而对于受了轻伤的事故,报道出来的可能性就不大,像这类情况能够得到统计的机会就很少了。对于坠落井道事故的产生归纳起来有四个方面:一是通过专用的三角钥匙打开层门,而此时的轿厢却不在这一层,由于误入所造成;二是电梯在某些特殊情况下离开这一层,层门却没有关闭,当事人由于没有注意到这一情况而发生坠落井道事故;三是由于极少数人的无知或处于半清醒状态,通过双手扒开层andperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbecarriedout;4)forspringhangers(includedsimplespring,hangersandconstantsupporthangers)itshouldalsoberecognizedassettingandlockingofloads.5)checkthesurfacequality,foldedlayeringandwithoutcracks,rustandotherdefects.5)aftercompletionofthetestandcontroldrawingnumberonebyone,byseriesbaled.Coloralloysteelparts,thepartsmarkinginstallationlocationandrotationaboutthedirectionyouwant.7.3.14.hangersinstallation7.3.14.1hangerlayouta.acleardesignofhangershouldbeinstalledstrictlyinaccordancewiththedrawingsanddesignsshallnotbeinstalledwrong,missing,etc.B.ownarrangementofpipingsupportandhangersetandselectionshouldbebasedoncomprehensiveanalysisofgenerallayoutofpipingsystems;coldinstallationofsteampipewithparticularattentionreservedforcompensationofthermalexpansiondisplacementandorientation.C.supportsystemsshouldberationaltowithstandpipeloads,staticloadandincidentalload;reasonablepipingdisplacement;guaranteedundervariousconditions,stressarewithintheallowedrange.Strength,stiffness,andmeetrequirementstopreventvibrationandsoothingwater,withoutaffectingtheadjacentequipmentmaintenanceandotherpipinginstallationandexpansion.D.equipmentconnectedtotheinterfacetomeetpipelinethrust(torque)limitrequirements;increasethestabilityofpipingsystemstopreventpipeline...Tubewallthickness(mm)2-34-67-10weldformnoslopemouthweldstrengtheningheighth(mm)1-1.51.5-2weldwidthb(mm)5-67-6hasslopemouthweldstrengtheningheighth(mm)1.5-22weldwidthb(mm)coverhadeachedgeslopemouthabout2mmargonarcweldingweldstrengtheningsurfaceheightandwidthtubewallthickness(mm)2--33--45--6weldformweldstrengtheningheighth(mm)1-1.51.5-22-2.5widthb(mm)门后而坠落,通常情况下人的双手是不能扒开层门,但由于电梯门锁的原因,也确实生了这样的巧合;四是当电梯出现故障或是停电,乘员为离开轿厢,在打开轿门及层门后,跳出轿厢时而又坠落井道的,而在上述四类型中第一种情况最多。1.2、事故原因在进行这方面的研究之后我们发现,在用电梯发生坠落井道事故基本都是一个原因造成,那就是误入,但在一些情况下,电梯外面的层门却必须打开,进行相关的操作,在这种危险的情况下稍有不注意便会坠入井道,实际上人总免不了失误、出错、大意和疏忽,这也是人类的生理特点所造成,无法完全克服,多年来南京市几乎所有在用电梯发生的误入坠落井道事故都能证明这一点。值得我们更加注意的已经不止是一、两个有资质的专业人员也在维修电梯的过程中因为同样的原因而丧失了生命,象上述这些情况,就不能够认定是当事人违反操作规程的结果。1.3、预防措施根据事故形成的特点,轿厢不在这一层,在层门刚刚被打开不足10厘米时就在当事人所在层发生报警声响,同时打开井道照明灯则是一个简单而又切合实际的事故预防措施,作为还有行为能力的人就不可能在报警的情况下,进一步开大层门,冲着报警声响和同时打开的井道照明灯再往井道里跨。去年贵州遵义所发生的女青年坠落井道事故也是一样,因为当事人被困于轿厢,在无助以及无法意识下一步的行动具有生命危险,采取了她自己认为是正确的andperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbecarriedout;4)forspringhangers(includedsimplespring,hangersandconstantsupporthangers)itshouldalsoberecognizedassettingandlockingofloads.5)checkthesurfacequality,foldedlayeringandwithoutcracks,rustandotherdefects.5)aftercompletionofthetestandcontroldrawingnumberonebyone,byseriesbaled.Coloralloysteelparts,thepartsmarkinginstallationlocationandrotationaboutthedirectionyouwant.7.3.14.hangersinstallation7.3.14.1hangerlayouta.acleardesignofhangershouldbeinstalledstrictlyinaccordancewiththedrawingsanddesig
本文标题:电梯风险辨识、评估及其措施-3
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