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在高压缸排汽的总管上装有动力控制止回阀，以便在事故情况下切断，防止蒸汽返回到汽轮机，引起汽轮机超速。在高压缸排汽总管的端头有蒸汽冲洗接口，以供在管道安装完毕后进行冲洗，在管道冲洗完成后用堵头堵死。centerpinchecksandanchoringtheinnercylinder.AccordingtoWhilecouplingalignmentshouldkeepoiloutofcavityandlocatetherotoraxisneckraisedarewithintheprescribedlimits,thereshouldbenogaps,Horn,HornandHorn0.05mmfeelergaugesfitinto.Centercoupling,condenserwaterfillingandwater-filledaccordingtofactoryrequirement.ForcouplingthreesupportedrotorCenter,themouthunderthecouplingbetweenthevalueshouldbeasstipulatedinthemanufacturer,usually0.15~0.25mm.Inthecaseofcouplingconnection,ifpossible,liftingonlyonebearingendofthesupportbearingoftherotor,removethebearing,fittedwithspecialtilesandspecialliftingtools,discrotors,checkthejournalfluttertile,shouldgenerallybelessthan0.10MM.Whenthecouplingsandrotorcomeswhenthereisaconflict,thecouplingCentreshallprevail.6.4.5.2.2shaftlookingfor:...6.4.5.3.Provisionalboltconfirmedthepositioningoftherotorsize,aswellasthecouplingbetweentheadjustmentshimthicknessaccuracy,drawingstomeetthetechnicalrequirements.Plane,cylindricalandcleanthecouplingboltholesshouldbecleanandwithoutburrs,scrapironandgrease-free,relativepositionofthecouplingaccordingtothedrawingrequirementsare.Couplingtopscrews,rounddistanceapart,indicatorstomonitormovementoftheaircraft,itsvalueisallowedtopassthevalueaxismoving,mountedadjustmentpads,notepadsinstallationdirectionguidepincouplingwithprocessendclosed.Thebackwheelsslowlytightened,when2mmorso,withstandardwhitebarswheretwobackwheelboltholemeasurementaboveandbelow,confirmtwobackwheelboltholeconcentricity.Then,thesymmetricalhorizontalmounttwotemporaryboltstightened,attentiontomonitordialindicator,theninstallthesymmetricaltemporarybolts,thistimesitesslowlymovingrotor,inthemeasuredcircumferenceof8equalpartsbackwheelrimrock,eachmeasuringrelativechangesinvalueshouldbelessthan0.02mm.6.4.5.4couplingreamedandpairedboltreamingdiereamer,adjustablereamers,boringmill,inseveralways.6.4.5.4.1Generalrequirementsbeforereamingorboring,1评价项目概述1.1被评价单位的基本概况XXXXX液化气站是一家经营液化石油气的企业。原为XXXXX红星液化气站始建于1995年，于2002年改造更名为XXXXX鸿运液化气公司，由于2005年所属地域划分为XXXXX市北市区，公司名称改为XXXXX液化气站。该公司位于太保营村村北，注册资金二十万元，占地面积1920平方米。法人刘红星，供应能力0.5万户，经营范围为：石油液化气零售。现有职工6人，其中安全生产负责人1名，安全管理员1名，操作工2名。1.2被评价项目概况1.2.1被评价项目概况单位名称：XXXXX液化气站单位地址：太保营村村北建成时间：1995年储存规模：站内设有20m3液化气储罐一台，50m3液化气储罐1台，20m3残液罐一台。职工人数：6人。运输方式：液化石油气经运输单位的汽车罐车运至站内,本站未设运输车辆。安全设施：站内设有500立方米消防水池1个，消防泵2台，消防栓4处，8公斤干粉灭火器14只，35公斤灭火器2台。储罐设有安全阀、压力表、温度计等安全附件，罐区、灌装间设有可燃气体检测报警器，储罐上方设有在高压缸排汽的总管上装有动力控制止回阀，以便在事故情况下切断，防止蒸汽返回到汽轮机，引起汽轮机超速。在高压缸排汽总管的端头有蒸汽冲洗接口，以供在管道安装完毕后进行冲洗，在管道冲洗完成后用堵头堵死。centerpinchecksandanchoringtheinnercylinder.AccordingtoWhilecouplingalignmentshouldkeepoiloutofcavityandlocatetherotoraxisneckraisedarewithintheprescribedlimits,thereshouldbenogaps,Horn,HornandHorn0.05mmfeelergaugesfitinto.Centercoupling,condenserwaterfillingandwater-filledaccordingtofactoryrequirement.ForcouplingthreesupportedrotorCenter,themouthunderthecouplingbetweenthevalueshouldbeasstipulatedinthemanufacturer,usually0.15~0.25mm.Inthecaseofcouplingconnection,ifpossible,liftingonlyonebearingendofthesupportbearingoftherotor,removethebearing,fittedwithspecialtilesandspecialliftingtools,discrotors,checkthejournalfluttertile,shouldgenerallybelessthan0.10MM.Whenthecouplingsandrotorcomeswhenthereisaconflict,thecouplingCentreshallprevail.6.4.5.2.2shaftlookingfor:...6.4.5.3.Provisionalboltconfirmedthepositioningoftherotorsize,aswellasthecouplingbetweentheadjustmentshimthicknessaccuracy,drawingstomeetthetechnicalrequirements.Plane,cylindricalandcleanthecouplingboltholesshouldbecleanandwithoutburrs,scrapironandgrease-free,relativepositionofthecouplingaccordingtothedrawingrequirementsare.Couplingtopscrews,rounddistanceapart,indicatorstomonitormovementoftheaircraft,itsvalueisallowedtopassthevalueaxismoving,mountedadjustmentpads,notepadsinstallationdirectionguidepincouplingwithprocessendclosed.Thebackwheelsslowlytightened,when2mmorso,withstandardwhitebarswheretwobackwheelboltholemeasurementaboveandbelow,confirmtwobackwheelboltholeconcentricity.Then,thesymmetricalhorizontalmounttwotemporaryboltstightened,attentiontomonitordialindicator,theninstallthesymmetricaltemporarybolts,thistimesitesslowlymovingrotor,inthemeasuredcircumferenceof8equalpartsbackwheelrimrock,eachmeasuringrelativechangesinvalueshouldbelessthan0.02mm.6.4.5.4couplingreamedandpairedboltreamingdiereamer,adjustablereamers,boringmill,inseveralways.6.4.5.4.1Generalrequirementsbeforereamingorboring,2喷淋装置。储罐区设有避雷针6个，灌装间在避雷保护范围内，设备及管道等设有防静电接地装置，经XXXXX防雷中心检测合格。1.2.2自然条件（1）地质资料XXXXX市境内地势由西北向东南倾斜。地貌分山区和平原两大类，各约占1/2。境内群山西峙，沃野东坦。山区按高程及地貌划分为中山区、低山区及丘陵三类。西部为中山区，总面积6790.5平方公里，占全市总面积的30.7%，海拔高程一般在1000米以上。中山区东南部是低山区和丘陵区，呈条带形，总面积4197.6平方公里，占总面积的18.98％，海拔高程除狼牙山1105米外，一般在500至1000米之间，丘陵区海拔一般在100至500米之间。平原区系由大小不等的冲积扇构成，自北、西、南三个方向，向东部白洋淀倾斜，按其成因分山前洪积平原、冲积平原及洼淀区三部分。境内河流主要为海河流域大清河水系。该区地震基本烈度为六度，冬季冻土层值埋深约0.5米。（2）气象资料XXXXX市属于暖温带大陆性半干旱季风气候，四季分明，气候温和。年平均气温为12.3℃，最冷月为1月，平均气温-4.2℃，最暖月为7月，平均气温为26.7℃,年无霜期约为210天。年平均降水量575毫米，降水主要集中在7、8、9三个月。主导风向为SSW,次主导风向为NNE,年总平均风速1.8M/S。灾害性天气极少，除1963年百年一遇洪水外，