南工大化工原理《第二章流体输送机械》习题解答

dstandardizationofsafetyproduction,andstrivetoachieveintrinsicallysafe.Ninethpitsafetysectionandisaunitofsecurityofficersresponsibleforminesafetydutiesandsupervisetheimplementationofthefollow-upto,andimplementationofthesystem,prosecution.PartImanagementsystems...Youcanusebrazierswhen,2--3metersfromthegroundandputthefireoutbeforethework,confirmthenofirebeforetheycanleave;Highway11non-staffinthemarginwithin50m,radiusoftheexcavationwork,andworkingwithin6metresoftheedgeandstayundertheumbrellaheading;12,blastingintothepitpersonnelmustfollowtheshootingguard'scommand,hidetosafety;13non-miningvehicles(includingbicycles,animal-drawnvehicle,motorvehicles,etc)willbebannedfromenteringthepitsandotherproductionareaonpainofheavyfines,resultinginaccidentstobeinvestigatedforresponsibility;14shootingthefollowingmechanicalsafetydistancesasfollows:categorynamemechanicalcannonsshallowholesandpopshootingexposedblastingunits:metersdiggingmachinerigcargunpowderotherequipment-pitequipment,especiallyanelectricalswitchandavarietyofsafetydevices,inadditiontospecifyingtheuseofresponsiblepersonnel,bananytouchingofotherpersonnel;16foundthatpowerlinesorcablesbreakinggroundbeforewithoutascertainingwhetherthecharged,prohibitsanyonefromtouching,andshouldleave5metersaway,andimmediatelynotifythepersonchecking;17withouttheleadership'sconsent,arenotallowedtotakethestrippedtrucks,watertankers,oiltankers,asaresultofthecau过渡：你们刚才学习了一篇很美的短文，又学会了很多的汉字，高兴吗？安安和你们一样是个爱学习的小朋友，他除了在语文课上交了很多生字朋友，在平时的生活中，也留心识字，你们和他一样吗？《第二章流体输送机械》习题解答1）某盛有液体的圆筒容器，容器轴心线为铅垂向，液面水平，如附图中虚线所示。当容器以等角速度ω绕容器轴线旋转，液面呈曲面状。试证明：①液面为旋转抛物面。②。③液相内某一点（r，z）的压强。式中ρ为液体密度。解题给条件下回旋液相内满足的一般式为（常量）取圆柱坐标如图，当Z=0,r=0,P=P0,∵C=P0故回旋液体种，一般式为①液面为P=P0的等压面，为旋转抛物面②又即：h0=∴H=2h0dstandardizationofsafetyproduction,andstrivetoachieveintrinsicallysafe.Ninethpitsafetysectionandisaunitofsecurityofficersresponsibleforminesafetydutiesandsupervisetheimplementationofthefollow-upto,andimplementationofthesystem,prosecution.PartImanagementsystems...Youcanusebrazierswhen,2--3metersfromthegroundandputthefireoutbeforethework,confirmthenofirebeforetheycanleave;Highway11non-staffinthemarginwithin50m,radiusoftheexcavationwork,andworkingwithin6metresoftheedgeandstayundertheumbrellaheading;12,blastingintothepitpersonnelmustfollowtheshootingguard'scommand,hidetosafety;13non-miningvehicles(includingbicycles,animal-drawnvehicle,motorvehicles,etc)willbebannedfromenteringthepitsandotherproductionareaonpainofheavyfines,resultinginaccidentstobeinvestigatedforresponsibility;14shootingthefollowingmechanicalsafetydistancesasfollows:categorynamemechanicalcannonsshallowholesandpopshootingexposedblastingunits:metersdiggingmachinerigcargunpowderotherequipment-pitequipment,especiallyanelectricalswitchandavarietyofsafetydevices,inadditiontospecifyingtheuseofresponsiblepersonnel,bananytouchingofotherpersonnel;16foundthatpowerlinesorcablesbreakinggroundbeforewithoutascertainingwhetherthecharged,prohibitsanyonefromtouching,andshouldleave5metersaway,andimmediatelynotifythepersonchecking;17withouttheleadership'sconsent,arenotallowedtotakethestrippedtrucks,watertankers,oiltankers,asaresultofthecau过渡：你们刚才学习了一篇很美的短文，又学会了很多的汉字，高兴吗？安安和你们一样是个爱学习的小朋友，他除了在语文课上交了很多生字朋友，在平时的生活中，也留心识字，你们和他一样吗？③某一点（r,Z）的压强P:2）直径0.2m、高0.4m的空心圆桶内盛满水，圆筒定该中心处开有小孔通大气，液面与顶盖内侧面齐平，如附图所示，当圆筒以800rpm转速绕容器轴心线回旋，问：圆筒壁内侧最高点与最低点的液体压强各为多少？解取圆柱坐标如图，当Z=0,r=0,P=P0,∴C=P0故回旋液体种，一般式为B点：Z=0,r=R=0.1m,C点:Z=-0.4m,r=0.1m,3）以碱液吸收混合器中的CO2的流程如附图所示。已知：塔顶压强为0.45at（表压），碱液槽液面与塔内碱液出口处垂直高度差为10.5m，碱液流量为10m3/h，输液管规格是φ57×3.5mm，管长共45m（包括局部阻力的当量管长），碱液密度，粘度，管壁粗糙度。试求：①输送每千克质量碱液所需轴功，J/kg。②输送碱液所需有效功率，W。解①dstandardizationofsafetyproduction,andstrivetoachieveintrinsicallysafe.Ninethpitsafetysectionandisaunitofsecurityofficersresponsibleforminesafetydutiesandsupervisetheimplementationofthefollow-upto,andimplementationofthesystem,prosecution.PartImanagementsystems...Youcanusebrazierswhen,2--3metersfromthegroundandputthefireoutbeforethework,confirmthenofirebeforetheycanleave;Highway11non-staffinthemarginwithin50m,radiusoftheexcavationwork,andworkingwithin6metresoftheedgeandstayundertheumbrellaheading;12,blastingintothepitpersonnelmustfollowtheshootingguard'scommand,hidetosafety;13non-miningvehicles(includingbicycles,animal-drawnvehicle,motorvehicles,etc)willbebannedfromenteringthepitsandotherproductionareaonpainofheavyfines,resultinginaccidentstobeinvestigatedforresponsibility;14shootingthefollowingmechanicalsafetydistancesasfollows:categorynamemechanicalcannonsshallowholesandpopshootingexposedblastingunits:metersdiggingmachinerigcargunpowderotherequipment-pitequipment,especiallyanelectricalswitchandavarietyofsafetydevices,inadditiontospecifyingtheuseofresponsiblepersonnel,bananytouchingofotherpersonnel;16foundthatpowerlinesorcablesbreakinggroundbeforewithoutascertainingwhetherthecharged,prohibitsanyonefromtouching,andshouldleave5metersaway,andimmediatelynotifythepersonchecking;17withouttheleadership'sconsent,arenotallowedtotakethestrippedtrucks,watertankers,oiltankers,asaresultofthecau过渡：你们刚才学习了一篇很美的短文，又学会了很多的汉字，高兴吗？安安和你们一样是个爱学习的小