PMI培训资料：水处理系统培训课件

水处理系统培训课件UtilitiesFundamentalstraining公用工程分部分为水处理系统和空分空压系统两部分。其中，水处理系统包括：生产/消防给水系统、生活给水系统、循环冷却水系统、污水处理及回用系统、全厂雨水收集监控排放池和事故水池等；空分空压系统包括空气压缩和空气分离，主要为全厂提供合格的工厂空气、仪表空气、氮气。此外，全厂换热站、制冷站、工艺及供热管廊、地下管网、厂区道路、厂区主干道两侧排水沟等均为公用工程管辖范围。各单元设备运行采用DCS系统、PLC系统和现场就地控制相结合的方式。

前言Theutilitysectionismainlyforthewholeplanttoprovidewatertreatment,gastreatmentandmanagementofthewholeplantvarioussupplypipelinenetwork,including:circulatingcoolingwater,productionwater,domesticwater,firefightingwater,heattransferstations,compressedair,Air,high(low)pressurenitrogen,chilledwater,airconditioningwater,wastewatertreatment,rainmonitoringemissions.Utilityworkspositionsincludewatersupplyandfirewaterpressure,circulatingwater,lithiumbromiderefrigeration,airseparation&pressure,wastewatertreatment,wastegastreatmentandexternalpipenetwork(undergroundpipenetwork,piperack)andsoon.IntroductiontoUtilityDivisionTheoperationandmanagementofeachunitequipmentisacombinationofon-sitecontrolandDCSsystemcentralizedmonitoring.

一、给水系统二、循环水系统三、污水处理系统四、雨水监控及事故水池五、换热站、制冷站六、地上管廊及地下管网目录

给水系统分为生产/消防给水和生活给水两个单元。其中，生产/消防给水设置两座10000m³水罐，生活给水设置两座500m³水罐，水罐设置自动补水气动阀，与液位联锁，会根据液位变化情况自动补水和停水，以满足生产、消防、生活用水。1、生产给水系统设置6台生产给水泵，供主厂区、东部码头和西部罐区生产用水。供主厂区生产水泵共3台，2台变频，1台工频，单泵流量150m³/h，扬程60m；供东部码头和西部罐区生产水泵为2台工频泵，单泵流量150m³/h，扬程60m；主厂区生产给水管网为恒压供水管网，供水压力0.6MPa。此外，供主厂区开停车用生产水泵为1台工频泵，单泵流量300m³/h，扬程60m。一、给水系统Watersupplyandfirefightingwaterpumpstationhavetwo10000m³tank(productionofwater&firewatersharing);two500m³watertankfordomesticuse.Thewatertankissettoautomaticallyreplenishbypneumaticvalve,interlockwiththewaterlevel,willautomaticallyreplenishandstopthewateraccordingtothechangeofwaterleveltomeettheproduction,fireanddomesticwaterrequirement.ProductionWatersystem:Totalof6pumps,supplyproductionwatertomainplant&easternjetty(arrangement:3pumpssupplyformainplant2withvariablefrequencydrive&1pumpisfixedfrequencydrive.2pumpssupplytoeastjettyforlargevolumesupply&shutdownperioduse).Watersupply&FirewaterpressurizestationProductionwaterpumpformainplant(2setswithVariableFrequencyDrive&1setfixedfrequency).Singlepumpparameters:Q=150m3/hH=60mEasternJettyProductionwaterpump(2withVFD)Productionwatersupplypumpforstart-up&shut-downofmainplant(1VariableFrequencyDrivepump)Singlepumpparameters:Q=300m³/hH=60mWatersupply&Firewaterpressurizestation2、消防给水系统

全厂消防水系统设置4台电动消防泵、4台柴油消防泵、2台稳压泵。其中，供厂区消防环管网电动泵3台，流量220L/S扬程120m；柴油消防泵3台，流量220L/S扬程120m；消防稳压泵2台，单泵流量30L/S，扬程85m；泡沫消防水系统设电动消防泵1台，柴油消防泵1台；单泵流量160L/S，扬程140m，主要供厂区主装置及中间罐区消防泡沫站使用。厂区消防管网环状分部，进每个主装置界区都有设置切断阀；正常生产时消防管网恒压运行，运行压力0.8MPa，事故状态下消防主泵启动，运行压力不低于1.0MPa。

一、给水系统Firewatersupplysystem:Firefightingwatersystemhas4electricpumps,4dieselpumps,2pressureregulatingpump(whichsupportfirefoamsystem:1electricpump,1dieselpump;3electricpumpforfirefightingwatersystem,3dieselpump;2pressureregulatingpump.Foamfirewater(electricpump,1dieselpump),Q=160L/SH=140mSinglepumpparameters:Q=160L/SH=140mFirepump(electricpump,dieselpump3)Singlepumpparameters:Q=220L/SH=120mFirewaterpressureregulatingpump:(2setswithVariableFrequencyDrive)Singlepumpparameters:Q=30L/SH=85mWatersupply&Firewaterpressurizestation柴油消防泵稳压补水泵一、给水系统泡沫消防罐管道比例混合器消防炮一、给水系统3、生活给水系统设置5台生活水泵。其中，供主厂区生活水泵3台,2台变频，1台工频；单台泵流量15m³/h，扬程45m。主厂区生活给水管网为恒压供水管网，供水压力0.45MPa。供东部码头生活给水泵2台，西部罐区生活给水泵1台，单泵流量60m³/h，扬程70m。一、给水系统Domesticwatersystem:2setsof500m³domesticwatertank,6domesticwaterpumps(where3pumpsisformainplant,twowithVFD,1fixedfrequency;2pumpsforEasternjetty,1pumpsupplyfortheWesternstoragearea).Mainplantdomesticwatersupply(2setswithVariableFrequencyDrive,1setisfixedfrequency)Singlepumpparameters:Q=15m³/hH=45mSinglepumpparameters:Q=15m³/hH=45mEasternjetty/westernstorageareadomesticwatersupplypumpSinglepumpparameters:Q=60m³/hH=70mWatersupply&Firewaterpressurizestation

4、工艺流程叙述4.1生产/消防给水系统

PMB项目所有淡水全部来自海水淡化（热法多效蒸馏），再经矿化后成为生产给水，部分生产给水再经加氯消毒成为生活给水。从海淡来的产水，通过补水管线进入2个（10000m³）生产、消防加压水罐；为保障水罐液位和消防安全用水，系统设置了自动补水阀；阀门开启、关闭状态与水罐液位进行联锁，当液位低时，补水阀打开，当液位高时自动补水阀关闭，来实现水罐液位始终处于一个相对恒定且比较高的范围（消防水的要求）。

生产/消防水泵从生产消防水罐将水抽出，通过泵加压送至各生产用户和消防管网，为保障机泵安全，系统还设置了低液位停泵联锁。

一、给水系统Processdescription:Production/firewatersupplysystem:PMBprojectfreshwatersupplyisentirelyfromdesalinationunit(MEDthermalprocess),andthenaftermineralizationtreatmentbecomesproductionwatersupply,supplywatertoaspartofproductionwateranddomesticwatersupplyafterdisinfectionbychlorination.Productionwaterfromthedesaltedseawater,viapipelineenters2watertank(10,000m3).Firewatertank;forprotectionoftanklevel&firefightingwaterusageavailability,thesystemisinstalledwithautomaticvalve;opening&closingofthevalveisinterlockwithtanklevel,whentankwaterlevelislow,waterinletvalvewillopen,whenwaterlevelishigh,valvewillclose.Achievedtankwaterlevelisalwaysatarelativelyconstantandrelativelyhighlevel(firewaterrequirements).Watersupply&FirewaterpressurizestationProcessdescription:（continuous）Production/firewaterpumpfromtheproductionoffirewatertanktothewateroutlet,throughthepumppressuresenttotheproductionprocessconsumersandfirepipenetwork,fortheprotectionofmachinepumpsafety,thesystemalsoinstalledalowlevelstoppumpinterlock.Watersupply&Firewaterpressurizestation

10000m³10000m³消防消防消防生产生产至消防供水管网至主厂区（西库区）生产水至东码头生产水生产、消防加压系统流程简图泡沫消防至泡沫消防供水管网FirewaterpumpTothefirewatersupplypipenetwork.Tothefoamfirewatersystem.Productionwatertomainplant.Productionwatertoeasternjetty.一、给水系统Productionwaterpump4.2生活给水系统

从给水管线来的生活水（海淡水经矿化并加氯消毒后），通过补水管线进入2个（500m³）生活水储罐；为保障水罐液位和生活安全用水，系统设置了自动补水阀；阀门开启、关闭状态与水罐液位进行联锁，当液位低时，补水阀打开，当液位高时自动补水阀关闭，来实现水罐液位始终处于一个相对恒定的范围。

生活水泵从生活水罐将水抽出，通过泵加压送至各生活水用户，为保障机泵安全，系统还设置了低液位停泵联锁。

一、给水系统Domesticwatersupplysystem:Fromthewatersupplylinetothedomesticwater(desalinatedwateraftermineralizationandchlorination),throughthereplenishmentpipelineintothetwo(500m³)domesticwaterstoragetank;toprotectthewaterlevelanddomesticwaterrequirement,thesystemsetupautomaticwaterValve;valveopen,closestatedependsonthetankwaterlevelinterlock,whenthewaterlevelislow,thewatervalveopen,whenthewaterlevelishightheautomaticwatervalveclosedtoensurethetanklevelisalwaysinarelativelyconstantrange.Waterfromthetankispumpedoutbydomesticwatersupplypumptousers.Fortheprotectionofthepump,tanklowlevelinterlockpumpstopisinplace.Watersupply&Firewaterpressurizestation

500m³500m³生活生活生活生活生活至主厂区生活水至东码头生活水生活水流程简图至西码头库区生活水一、给水系统DomesticwatersupplypumpToeasternjetty

westernstoragearea.Tomainplant.

柴油消防泵：由水泵和柴油机组成，依靠蓄电瓶作为启动电源，在火灾中一旦供电中断，所有电动消防泵无法工作的条件下，柴油消防泵就会自动投入运行，参与灭火救灾。DieselFirepump:Composeofpump&dieselcomponent,reliesonbatteryfortheelectricstarter,incaseofpowercut,allelectricpumpscannotrun&dieselpumpswillautomaticlyrun,tosupplyfirefightingwater.柴油消防泵一、给水系统一、给水系统二、循环水系统三、污水处理系统四、雨水监控及事故水池五、换热站、制冷站六、地上管廊及地下管网目录循环冷却水系统示意图二、循环水系统用户换热器冷却塔供水管网吸水池循环水泵加药装置生产废水管网塔下水池生产废水池循环水岗位流程简图循环水旁滤器监测换热器冷却风机Towerbottombasin生产水补水管线回用水补水管线ABriefIntroductiontoCirculatingWaterProcessHeatexchangerconsumerCoolingfanCoolingTowerSuctionpoolCirculatingpumpRecirculatingwaterSidefilterMonitoringHeatexchangersDosingdeviceProductionwastewaterpoolProductionofwastewaterpipenetwork二、循环水系统一、

循环水系统1、系统简述

根据用水用户不同，分设Ⅰ循和Ⅱ循两个循环水场，供各装置换热器冷却用。

Ⅰ循设计循环水量27000m³/h，设计给水温度≤33℃，压力0.5MPa，回水温度≤43℃，回水压力0.2MPa；设置钢筋混凝土循环冷却塔6座，单座处理量4500m³/h；设置6台循环水泵,4台大泵单泵处理量8000m³/h，扬程50m，2台小泵单泵处理量4500m³/h，扬程50m；正常工况下大泵3开1备，小泵1开1备，主要供主厂区各炼油装置使用。

Ⅰ循补水由二路组成，一路来自热电分部的海淡产水矿化后水，另一路来自污水处理场处理合格的含油废水。

二、循环水系统Accordingtothedifferentusers,2separatecirculatingcircuit,namelySeries1&2.Series1designcapacityofcirculatingwateris27000m³/h;setof6singletreatmentcapacityof4500m³/hreinforcedconcretecoolingtower.Setupsixcirculatingpumps,fourlargepumps,twosmallpumps.(Largepumpsinglepumphandlingcapacity:Q=8000m³/hH=50m;smallpumpsinglehandlingcapacityQ=4500m³/hH=50m);normalconditions3bigpumprunning,1pumpstandby,1smallpumprunning1standby.Mainlyforthemainplantunits.

Series1have2make-upsource.Make-upsourceisfromseawaterdesalinationunit&oilywastewatertreatmentplant.Theuseof2sourcesofmakeupwateristoreplenishwaterlossduetoevaporation,wind,leak&blowdown,tomaintainthesystemwaterbalance.Circulatingwatersystem

Ⅱ循设计循环水量5000m³/h，设计给水温度33℃，压力0.5MPa，回水温度43℃，回水压力0.2MPa；设置钢筋混凝土冷却塔2座，单座处理量2500m³/h；设置4台循环水泵，3大1小，大泵单台处理量2200m³/h，扬程40m，小泵单台处理量800m³/h，扬程40m；正常工况3开1备，主要供空分空压、制冷站使用。

Ⅱ循补水来自热电分部海淡经矿化后的产水，来补充热交换过程中的水损失，来维持系统水量平衡。为确保循环水水质达标，循环水场还配套设置了旁流过滤系统、自动加药系统、循环水监测换热器用于水质监控。二、循环水系统Series2designcapacitycirculatingwateris5000m³/h;setoftwosingleofhandlingcapacityof2500m³/hreinforcedconcretecoolingtower.Setupfourcirculatingpumps,3bigpump1smallpump.(SinglepumphandlingcapacityQ=2200m³/hH=40m;smallpumpsinglehandlingcapacityQ=800m³/hH=40m);normalconditions3running1standby.Mainlysupplyforairseparation&aircompressionstation,refrigerationstation.Series2watermake-upisfromDesalinationUnit,tosupplementthewaterlossatprocessheatexchanger.Tomaintainthewaterbalanceofthecirculatingsystem.Inordertoensurequalityofcirculatingwater,thecirculatingwatercircuitisequippedwithby-passfiltrationsystem,automaticchemicaldosingsystem&circulatingwatermonitoringheatexchangertomonitorwaterquality.Circulatingwatersystem

2、工艺流程简述来自各装置经过换热的热水（≤43℃，0.2MPa）,经回水管线直接上冷却塔顶进入布水管线，经冷却喷头均匀的喷洒在填料上，逐步下降落入塔下水池，在下落过程中与由塔外抽入的冷空气进行对流、热交换，完成换热过程，达到冷却的目的。

为解决结垢、腐蚀问题设置了自动加药装置，通过定期/自动投加药剂，达到延缓结垢和腐蚀的问题；为降低循环水浊度，在循环水供水管线上取3%的循环水进行连续过滤，以去除系统杂质，达到净化水质的目的。为监测水质状况，为药剂投加量调整、配方优化提供基础数据，两套循环水场各设置了一台监测换热器，模拟换热器的实际运行情况，通过在线数据分析（pH/余氯/电导/污垢热阻等）和挂片腐蚀程度来判断水质最终处理效果。二、循环水系统Briefprocessflowdescription:Thehotwaterreturningfromprocessheatexchanger(≤43℃0.2MPa),Directlyviareturnlinetothecoolingwaterdistributionpipeintothetopofthecoolingtower,coolednozzlesprayeduniformlyonthefiller,thegradualdropletsfallsintothebottompoolwithinthetower,fallingcountercurrentflowwiththecoldairfromtheoutsideintothecolumn,theheatexchanger,completetheheattransferprocess,toachievethepurposeofcooling.Tosolvethescaling&corrosionproblem,automaticdosingdeviceisinstalled,throughregular/automaticdosingagents,todelaythescalingandcorrosionproblems.CirculatingwatersystemToreducethecirculatingwaterturbidity,inthecirculatingwatersupplyline3%ofthecirculatingwateriscontinuouslysenttofiltrationtoremoveimpuritiesinthesystemtoachievethepurposeofwaterpurification.Inordertomonitorthewaterqualitycondition,providethebasicdataforthedosageadjustmentandtheformulaoptimization.Bothofthetwocircuitwatersystemareequippedwithamonitoringheatexchangertosimulatetheactualoperationoftheheatexchanger.Throughtheonlinedataanalysis(pH/Residualchlorine/conductivity/dirtthermalresistance,etc.)andthedegreeoffilmcorrosiontodeterminethefinaltreatmentofwaterquality.CirculatingwatersystemAftercoolingofcoolingwaterreturnfromprocessheatexchanger,cooledwaterwillbecollectedinabottombasin,flowintopumpcollectionbasinbeforebeingpumpedtocoolingwaterconsumer(≤33℃P=0.5MPa).Inordertosolvecirculatingwaterhighconcentrationcycleissueduetowind,evaporation,impurities,leakagecausedbywaterions,thesystemfoulingproblems,accordingtotheconcentrationfactor,regularblowdownismaintained,tomaintainthesysteminavarietyofionsinarelativelystablerange.Circulatingwatersystem循环水凉水塔图片二、循环水系统二、循环水系统冷却塔减速机玻璃钢风机叶片驱动电机碳纤维轴二、循环水系统冷却塔收水器冷却塔填料二、循环水系统配水管道二、循环水系统冷却塔喷头二、循环水系统循环水泵：

作为循环水系统的动力输送源，循环水泵在循环水系统中具有重要的地位

离心泵的基本构造：由六部分组成，分别是叶轮，泵体，泵轴，轴承，密封环，填料函。离心泵的叶轮可分为封闭式、半封闭式和开敞式三种。二、循环水系统循环水旁滤器：一般取循环水量的3%～5%进行过滤。出水浊度：≤3NTU二、循环水系统监测换热器自动加药系统二、循环水系统二、循环水系统换热器腐蚀、结垢图片一、给水系统二、循环水系统三、污水处理系统四、雨水监控及事故水池五、换热站、制冷站六、地上管廊及地下管网目录三、污水处理场1、基本情况

污水场总设计规模：400m³/h，其中含油污水处理系列处理规模为200m³/h，含盐污水处理系列处理规模为200m³/h。

污水处理场采用污水调节均质+油水分离+涡凹气浮+溶气气浮+A/O+流沙过滤器的主工艺对来自炼油工艺装置排出的含油污水、含盐污水、初期雨水及厂前区（主厂区）生活污水等进行处理。含油污水处理后作为循环水场的补充水回用,含盐污水处理合格后达标排放。污水处理场收集的污油经脱水后送回全厂污油罐区。污水处理场产生的剩余活性污泥、油泥和浮渣经浓缩脱水后，送电站装置处理。三、污水处理系统Generalcondition:Thetotaldesigncapacityis400m3/h.200m3/hforoilywastewaterstream&200m3/hforsalinewastewaterstream.WastewaterTreatmentprocessinvolvesconditioninghomogenization+oil&waterseparator+CAF+DAF+A/Obiologicaltreatment+sandfiltrationtreatmenttotreatoilywastewater,salinewastewater,plantarearainwaterrunofffromoilrefineryprocessarea.Treatedwastewaterfromoilywastewatertreatmentserieswillbeusedasmake-upwaterforrecirculatingwatersystem.Treatedwastewaterwithindischargewaterqualityfromsalinewastewaterserieswillbedischargeouttotheseaaftermeetingeffluentdischargestandard.CollectedwasteoilcollectedfromWWTPwillbesenttowasteoiltankafterdehydration.Activatedsludge,oilywaste&scumproducedintheWWTPwillbesenttopowerplanttobeincineratedafterconcentratortreatment.Wastewatertreatmentplant

2、工艺流程简图ProcessdiagramOily/salinewastewaterHomogeneousconditioningtankOil&waterseparatorPrimaryaerationpoolSecondarysedimentationpoolSandfilterReusewaterpoolOilywastewater:ReusewatersystemSalinewastewater:Disch.tosea三、污水处理系统隔油池三、污水处理系统三、污水处理系统SAF系统由两级CAF组成。主要功能是：去除水中的SS、胶体类物质及悬浮物。CAF系统主要有曝气区、气浮区、回流系统、刮渣系统及排水系统等几部分组成。三、污水处理系统溶气气浮是使空气在一定压力下溶于水中并呈饱和状态，然后骤然减压释放，这时溶解的空气便以微小的气泡从水中析出并进行气浮。气泡直径约为20～100μm；三、污水处理系统污水处理厂曝气池图片三、污水处理系统二沉池图片三、污水处理系统

在正常运转情况下，砂滤出水可以达到如下出水效果：

浊度：＜1.0NTU

SS：＜10mg/l

藻类去除率接近100%三、污水处理系统流砂过滤器分机剖面图离心鼓风机外形图三、污水处理系统污泥脱水机外形图三、污水处理系统

★污水场废气处理1、废气处理

来自污水均质调节罐、事故罐、涡凹气浮、溶气气浮、生化池、污油中间罐、脱水罐、污油浓缩罐、油泥浓缩罐、碱渣处理等单元设备、设施出来的废气通过管道、引风机、引至废气处理系统，进行预处理和深度处理、达标后排放。

废气处理系统分为两个系列，每个系统处理量为15000Nm3/h，具独立运行能力。三、污水处理系统WWTPwastegastreatment:Wastegastreatment:WastegasfromWWTPhomogenizationtank,accidenttank,cavitationairfloatation,dissolvedairflotation,biochemicalpool,sewageoiltank,dehydrationtank,sewageoilconcentrationtank,sludgeconcentratetank,alkaliresiduetreatmentunitequipment,flowthroughthepipeline,induceddraftfan,enterstothewastegastreatmentsystem,thepretreatmentandadvancetreatmentprocess,achieveemissionstandardsbeforedischarging.Thewastegastreatmentsystemisdividedintotwoseries,eachsystemhandlingcapacityis15000Nm3/h,withindependentoperatingcapacity.Wastewatertreatmentplant

废气收集系统简图WastegasTreatmentProcessWastegas15,000Nm3/hPre-treatment+Biologicaltreatment15,000Nm3/hAdvanceTreatmentFanExhaustgasstack三、污水处理系统臭气加盖收集系统三、污水处理系统臭气处理系统三维模型图三、污水处理系统

三、污水处理系统

2、工艺流程说明：

系统利用“预处理+两级生物处理+深度处理”处理工艺，处理30000Nm³/h的废气。1）预处理：预处理采用隔油除油工艺，①去除臭气中的粉尘，防止粉尘进入后续生物滴滤池造成压降增大；②通过洗涤，使进入后续生物处理装置的臭气湿度达到饱和程度，满足生物处理对湿度的严格要求；

③通过水洗涤，还可以去除部分可溶性废气成份、一定程度上减轻致臭成分突变造成的冲击负荷。三、污水处理系统

2）生物处理段(包括生物处理1段和生物处理2段)。“一段生物滴滤池+二段生物滤池处理”二级生物除臭的组合，利用生物填料与气体有效接触来达到去除气体有害成分的目的。

生物处理1段采用生物滴滤床工艺，适宜处理硫系污染物的微生物的生长、繁殖。生物处理2段主要作用是处理非硫系的恶臭物质，旨在延长一段生物的功能，除了降解可生化性较好的硫化氢、氨等成分，也加强对苯、烃等碳氢化合物的处理，并延长臭气与生物填料接触时间。三、污水处理系统

3）深度处理段深度处理段主要针对生物除臭系统无法处理完全的烃类恶臭物质进行吸附处理。该装置由吸附再生单元、再生尾气冷却处理、填料干燥系统、工艺管道等组成。处理后气体满足《石油炼制工业污染物排放标准》GB31570-2015）。其中，苯≤4mg/m3、甲苯≤15mg/m3、二甲苯≤20mg/m3、非甲烷总烃≤120mg/m3。三、污水处理系统Processdescription：Thesystemuses"pretreatment+two-stagebiologicaltreatment+advancetreatmentprocess,handling30000Nm³/hoftheexhaust.Pretreatment:pretreatmentusingoilremovalprocess,tostrengthenthedeodorantsystemtoremoveoilsubstances;toensurethatthelatterpartofthebiologicaltreatmenthasnonegativeimpact.Theroleofthepretreatmentstageofthedeodorizingunit:Byremovingthedustintheodorgas,preventingdustbuiltupinbiologicaldripfiltercausingclogging&pressuredrop.Thiswillpreventefficiencydrop&reducemaintenancecost.WastewatertreatmentplantProcessdescription：(continuous)Throughwaterwashing,sothatwastegasenteringthesubsequentbiologicaltreatmentdeviceodorissaturated(wetness),tomeetthestringentrequirementsofbiologicaltreatmentonthehumidity.Throughwaterwashing,partofthesolublewastegascompositioncanberemovedtoacertainextend,reducingtheimpactload&stabilizingbiologicaltreatmentstageprocess.Biologicaltreatmentsection(includingbiologicaltreatmentstage1andbiologicaltreatmentstage2).WastewatertreatmentplantProcessdescription：(continuous)“Stage1biologicaltricklingtreatment+2ndstagebiologicalfiltertreatment”2stagesbiologicaldeodorizationtreatmentismoreeffective,stable,capable&resistancetoloadimpactthanconventionalsingledeodorizationtreatmentsystem.Biologicaltrickling&biologicalfilterbelongstothesamebiologicalmethodwhichworkbyhavingbiofillerstocomeincontactwithwastegastoremoveharmfulgases&achieveemissionstandard.Two-stagebiologicaltreatmentisintendedforanextendedperiodofbiologicalfunctions,inadditiontogoodbiodegradabilitydegradationofhydrogensulfide,ammoniaandotheringredients,butalsofurtherstrengthentheremovalofbenzene&otherhydrocarboncomponents.Italsoextendthewastegasretentiontimeinthebiologicaltreatmentunit.pH,temperature&etcmustbecontrolledwithinsuitableconditioninorderforbacteriagrowthinordertotreatbenzene&otherhydrocarbonwastegascomponents.Bio-filterrequireslongcontacttimewithwastegas,utilizeorganic&inorganicfillermaterialcombination,usemake-upwaterfromWWTPsecondarysedimentationpooleffluent,butonlyintermittentsprayisrequired.WastewatertreatmentplantProcessdescription：(continuous)AdvancedtreatmentprocesssectionAdvancetreatmentsectionismainlyfortreatingallwastegascomponentsthatcan’tberemovedinthebiologicaldeodorizationtreatmentsection.Thedeviceconsistsofadsorptionregenerationunit,regenerationexhaustgascoolingtreatment,fillerdryingsystem,processpipingandothercomponents.Afterbiologicaltreatmentsection,wastegasremainingpollutantsmainlybenzene&otherhydrocarboncomponentswillbesenttoadvancetreatmentsection,theorganiccomponentsinthewastegaswillbeabsorbedinthefilterpores&tailgasisdischargedthrough25mexhauststack.Wastewatertreatmentplant

深度处理排气标准三、污水处理系统No.ItemEmissionconcentrationmg/m3Emissionratekg/hRemarks1H2S0.33GB1454-1993requirementsintheindicators,Note:exhaustcylinderimplementationof15meterscentralizeddischargestandards2Methylmercaptan0.043Methylsulfide0.334Dimethyldisulfide0.435Carbondisulfide1.56ammonia4.97Trimethylamine0.548Styrene6.59Odorconcentration2000(nounit)Table3:Advancetreatmentemissionstandards三、污水处理系统No.ItemEmissionconcentrationmg/m3Emissionratekg/hRemarks10benzene4GB31570-2015requirementsIndex11Toluene1512Xylene2013Non-methanetotalhydrocarbons120Table3:Advancetreatmentemissionstandards(continuous)三、污水处理系统一、给水系统二、循环水系统三、污水处理系统四、换热站、制冷站五、雨水监控及事故水池六、地上管廊及地下管网目录

热水站简介：为了充分利用全厂低温余热，本项目设置热水站1座，利用装置低温余热，供应110℃热水，供制冷站使用。热水站设计热水泵4台（3用1备），单台流量900m³/h，正常生产时，热源来自于芳烃联合装置，在制冷站开停工或芳烃联合装置发生异常情况时，热源由1.0MPa蒸汽补充。经溴化锂机组、异构化装置、海淡换热完成的热水，约70℃0.3MPa通过管网进入凝液缓冲罐，经换热水泵提升，送回芳烃联合装置继续使用。四、换热站、制冷站Basicinformation:Inordertomakefulluseofthelowtempwasteheatofthewholeplant,1hotwaterstationisinstalledintheproject,usingthelowtempwasteheat,supplyof110ºChotwater,supplyfortheusageofrefrigerantunit.Hotwaterstationisdesignedwith4pumps(3in-service,1spare),900m3/heach.Duringnormaloperatingcondition,heatsourceisfromaromaticunit.Duringrefrigerantunitshutdownperiodoraromaticunitabnormaloperatingconditionperiod,1.0MPasteamwillbeusedasheatsource.Hotwaterforlithiumbromideunit,isomerizationunit,desalinationunitisabout70ºC0.3MPa&viapipelinenetworkenterscondensatebuffertank.Viahotwaterliftpump,hotwaterissendbacktoaromaticsunittobeutilized.Introductiontohotwaterstation

工艺流程简图四、换热站、制冷站

溴化锂制冷站：本项目设置两座制冷站，厂前区制冷站和装置区制冷站。

1）厂区区制冷站：主要为办公楼、中心控制室、中心化验室、消防站、维修站等建筑物提供空调冷冻水。制冷站利用工艺装置的低温余热作为动力，采用热水型溴化锂吸收式冷水机组生产冷冻水。冷冻机组额定制冷量2910kW,配备4台冷冻水泵，3用1备，单台供出量500m3/h，冷冻水给水温度7℃，压力0.75MPa，回水温度12℃，压力0.25MPa。四、换热站、制冷站Theprojectsetuptworefrigerationstations,pre-plantrefrigerationstationsandmainrefrigerationstations.1)Plantrefrigerantstation:Mainlyfortheofficebuilding,thecentralcontrolroom,thecentrallaboratory,firestations,maintenancestationsandotherbuildingstoprovideairconditioningchilledwater.Refrigerationstationusingthetechnologyoflow-temperaturewasteheatasadrivingforce,theuseofhotwaterlithiumbromideabsorptionchillersproductionofchilledwater.Frozenunitratedcoolingcapacityof2910kW,equippedwithfourchilledwaterpump,3withapreparation,asinglesupplyof500m3/h,chilledwaterfeedwatertemperature7℃,pressure0.75MPa,returnwatertemperature12℃,pressure0.25MPa.Lithiumbromiderefrigerationstation

2）装置区制冷站：制冷站利用工艺装置的低温余热作为动力，采用热水型溴化锂吸收式冷水机组生产冷冻水。冷冻机组额定制冷量2040kW,配备4台冷冻水泵，单台供出量350m3/h，冷冻水给水温度7℃，压力0.75MPa，回水温度12℃，压力0.25MPa。冷冻水经溴化锂制冷机组制冷至7℃后，送往各工艺装置用冷单位及装置区配电间、机柜间等，经过用冷单位换热后变成12℃左右的热水返回至冷冻站，如此循环制冷。四、换热站、制冷站2)Equipmentarerefrigerantstation:Mainlyforthedeviceareapartofthecoldreplacementequipmenttoprovide7℃chilledwater.Refrigerationstationusingthetechnologyoflow-temperaturewasteheatasadrivingforce,theuseofhotwaterlithiumbromideabsorptionchillersproductionofchilledwater.Frozenunitratedcoolingcapacityof2040kW,equippedwithfourchilledwaterpump,3withapreparation,asinglesupplyof350m3/h,chilledwaterfeedwatertemperature7℃,pressure0.75MPa,returnwatertemperature12℃,pressure0.25MPa.Thechilledwateriscooledto7℃

bythelithiumbromiderefrigerationunitandsenttothecoldunitofeachprocessunit.Aftertheheatexchangeriscooledbythecoldunit,itisreturnedtothefreezingstationatabout12℃.Lithiumbromiderefrigerationstation

溴化锂制冷工作原理：在溴化锂吸收式制冷中，水作为制冷剂，溴化锂作为吸收剂。由于溴化锂水溶液本身沸点很高，极难挥发，所以可认为溴化锂饱和溶液液面上的蒸汽为纯水蒸汽;在一定温度下，溴化锂水溶液液面上的水蒸气饱和分压，小于纯水的饱和分压力;而且浓度越高，液面上的水蒸气饱和分压力越小。所以在相同的温度条件下，溴化锂水溶液浓度越大，其吸收水分的能力就越强。这也就是通常采用溴化锂作为吸收剂，水作为制冷剂的原因。溴化锂吸收式制冷机主要由发生器、冷凝器、蒸发器、吸收器、换热器、循环泵等几部分组成。四、换热站、制冷站

四、换热站、制冷站溴化锂制冷机组图片四、换热站、