PMI培訓(xùn)資料：水處理系統(tǒng)培訓(xùn)課件

水處理系統(tǒng)培訓(xùn)課件UtilitiesFundamentalstraining公用工程分部分為水處理系統(tǒng)和空分空壓系統(tǒng)兩部分。其中，水處理系統(tǒng)包括：生產(chǎn)/消防給水系統(tǒng)、生活給水系統(tǒng)、循環(huán)冷卻水系統(tǒng)、污水處理及回用系統(tǒng)、全廠雨水收集監(jiān)控排放池和事故水池等；空分空壓系統(tǒng)包括空氣壓縮和空氣分離，主要為全廠提供合格的工廠空氣、儀表空氣、氮?dú)?。此外，全廠換熱站、制冷站、工藝及供熱管廊、地下管網(wǎng)、廠區(qū)道路、廠區(qū)主干道兩側(cè)排水溝等均為公用工程管轄范圍。各單元設(shè)備運(yùn)行采用DCS系統(tǒng)、PLC系統(tǒng)和現(xiàn)場就地控制相結(jié)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、給水系統(tǒng)二、循環(huán)水系統(tǒng)三、污水處理系統(tǒng)四、雨水監(jiān)控及事故水池五、換熱站、制冷站六、地上管廊及地下管網(wǎng)目錄

給水系統(tǒng)分為生產(chǎn)/消防給水和生活給水兩個單元。其中，生產(chǎn)/消防給水設(shè)置兩座10000m3水罐，生活給水設(shè)置兩座500m3水罐，水罐設(shè)置自動補(bǔ)水氣動閥，與液位聯(lián)鎖，會根據(jù)液位變化情況自動補(bǔ)水和停水，以滿足生產(chǎn)、消防、生活用水。1、生產(chǎn)給水系統(tǒng)設(shè)置6臺生產(chǎn)給水泵，供主廠區(qū)、東部碼頭和西部罐區(qū)生產(chǎn)用水。供主廠區(qū)生產(chǎn)水泵共3臺，2臺變頻，1臺工頻，單泵流量150m3/h，揚(yáng)程60m；供東部碼頭和西部罐區(qū)生產(chǎn)水泵為2臺工頻泵，單泵流量150m3/h，揚(yáng)程60m；主廠區(qū)生產(chǎn)給水管網(wǎng)為恒壓供水管網(wǎng)，供水壓力0.6MPa。此外，供主廠區(qū)開停車用生產(chǎn)水泵為1臺工頻泵，單泵流量300m3/h，揚(yáng)程60m。一、給水系統(tǒng)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、消防給水系統(tǒng)

全廠消防水系統(tǒng)設(shè)置4臺電動消防泵、4臺柴油消防泵、2臺穩(wěn)壓泵。其中，供廠區(qū)消防環(huán)管網(wǎng)電動泵3臺，流量220L/S揚(yáng)程120m；柴油消防泵3臺，流量220L/S揚(yáng)程120m；消防穩(wěn)壓泵2臺，單泵流量30L/S，揚(yáng)程85m；泡沫消防水系統(tǒng)設(shè)電動消防泵1臺，柴油消防泵1臺；單泵流量160L/S，揚(yáng)程140m，主要供廠區(qū)主裝置及中間罐區(qū)消防泡沫站使用。廠區(qū)消防管網(wǎng)環(huán)狀分部，進(jìn)每個主裝置界區(qū)都有設(shè)置切斷閥；正常生產(chǎn)時消防管網(wǎng)恒壓運(yùn)行，運(yùn)行壓力0.8MPa，事故狀態(tài)下消防主泵啟動，運(yùn)行壓力不低于1.0MPa。

一、給水系統(tǒng)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柴油消防泵穩(wěn)壓補(bǔ)水泵一、給水系統(tǒng)泡沫消防罐管道比例混合器消防炮一、給水系統(tǒng)3、生活給水系統(tǒng)設(shè)置5臺生活水泵。其中，供主廠區(qū)生活水泵3臺,2臺變頻，1臺工頻；單臺泵流量15m3/h，揚(yáng)程45m。主廠區(qū)生活給水管網(wǎng)為恒壓供水管網(wǎng)，供水壓力0.45MPa。供東部碼頭生活給水泵2臺，西部罐區(qū)生活給水泵1臺，單泵流量60m3/h，揚(yáng)程70m。一、給水系統(tǒng)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、工藝流程敘述4.1生產(chǎn)/消防給水系統(tǒng)

PMB項目所有淡水全部來自海水淡化（熱法多效蒸餾），再經(jīng)礦化后成為生產(chǎn)給水，部分生產(chǎn)給水再經(jīng)加氯消毒成為生活給水。從海淡來的產(chǎn)水，通過補(bǔ)水管線進(jìn)入2個（10000m3）生產(chǎn)、消防加壓水罐；為保障水罐液位和消防安全用水，系統(tǒng)設(shè)置了自動補(bǔ)水閥；閥門開啟、關(guān)閉狀態(tài)與水罐液位進(jìn)行聯(lián)鎖，當(dāng)液位低時，補(bǔ)水閥打開，當(dāng)液位高時自動補(bǔ)水閥關(guān)閉，來實(shí)現(xiàn)水罐液位始終處于一個相對恒定且比較高的范圍（消防水的要求）。

生產(chǎn)/消防水泵從生產(chǎn)消防水罐將水抽出，通過泵加壓送至各生產(chǎn)用戶和消防管網(wǎng)，為保障機(jī)泵安全，系統(tǒng)還設(shè)置了低液位停泵聯(lián)鎖。

一、給水系統(tǒng)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消防消防消防生產(chǎn)生產(chǎn)至消防供水管網(wǎng)至主廠區(qū)（西庫區(qū)）生產(chǎn)水至東碼頭生產(chǎn)水生產(chǎn)、消防加壓系統(tǒng)流程簡圖泡沫消防至泡沫消防供水管網(wǎng)FirewaterpumpTothefirewatersupplypipenetwork.Tothefoamfirewatersystem.Productionwatertomainplant.Productionwatertoeasternjetty.一、給水系統(tǒng)Productionwaterpump4.2生活給水系統(tǒng)

從給水管線來的生活水（海淡水經(jīng)礦化并加氯消毒后），通過補(bǔ)水管線進(jìn)入2個（500m3）生活水儲罐；為保障水罐液位和生活安全用水，系統(tǒng)設(shè)置了自動補(bǔ)水閥；閥門開啟、關(guān)閉狀態(tài)與水罐液位進(jìn)行聯(lián)鎖，當(dāng)液位低時，補(bǔ)水閥打開，當(dāng)液位高時自動補(bǔ)水閥關(guān)閉，來實(shí)現(xiàn)水罐液位始終處于一個相對恒定的范圍。

生活水泵從生活水罐將水抽出，通過泵加壓送至各生活水用戶，為保障機(jī)泵安全，系統(tǒng)還設(shè)置了低液位停泵聯(lián)鎖。

一、給水系統(tǒng)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廠區(qū)生活水至東碼頭生活水生活水流程簡圖至西碼頭庫區(qū)生活水一、給水系統(tǒng)DomesticwatersupplypumpToeasternjetty

westernstoragearea.Tomainplant.

柴油消防泵：由水泵和柴油機(jī)組成，依靠蓄電瓶作為啟動電源，在火災(zāi)中一旦供電中斷，所有電動消防泵無法工作的條件下，柴油消防泵就會自動投入運(yùn)行，參與滅火救災(zāi)。DieselFirepump:Composeofpump&dieselcomponent,reliesonbatteryfortheelectricstarter,incaseofpowercut,allelectricpumpscannotrun&dieselpumpswillautomaticlyrun,tosupplyfirefightingwater.柴油消防泵一、給水系統(tǒng)一、給水系統(tǒng)二、循環(huán)水系統(tǒng)三、污水處理系統(tǒng)四、雨水監(jiān)控及事故水池五、換熱站、制冷站六、地上管廊及地下管網(wǎng)目錄循環(huán)冷卻水系統(tǒng)示意圖二、循環(huán)水系統(tǒng)用戶換熱器冷卻塔供水管網(wǎng)吸水池循環(huán)水泵加藥裝置生產(chǎn)廢水管網(wǎng)塔下水池生產(chǎn)廢水池循環(huán)水崗位流程簡圖循環(huán)水旁濾器監(jiān)測換熱器冷卻風(fēng)機(jī)Towerbottombasin生產(chǎn)水補(bǔ)水管線回用水補(bǔ)水管線ABriefIntroductiontoCirculatingWaterProcessHeatexchangerconsumerCoolingfanCoolingTowerSuctionpoolCirculatingpumpRecirculatingwaterSidefilterMonitoringHeatexchangersDosingdeviceProductionwastewaterpoolProductionofwastewaterpipenetwork二、循環(huán)水系統(tǒng)一、

循環(huán)水系統(tǒng)1、系統(tǒng)簡述

根據(jù)用水用戶不同，分設(shè)Ⅰ循和Ⅱ循兩個循環(huán)水場，供各裝置換熱器冷卻用。

Ⅰ循設(shè)計循環(huán)水量27000m3/h，設(shè)計給水溫度≤33℃，壓力0.5MPa，回水溫度≤43℃，回水壓力0.2MPa；設(shè)置鋼筋混凝土循環(huán)冷卻塔6座，單座處理量4500m3/h；設(shè)置6臺循環(huán)水泵,4臺大泵單泵處理量8000m3/h，揚(yáng)程50m，2臺小泵單泵處理量4500m3/h，揚(yáng)程50m；正常工況下大泵3開1備，小泵1開1備，主要供主廠區(qū)各煉油裝置使用。

Ⅰ循補(bǔ)水由二路組成，一路來自熱電分部的海淡產(chǎn)水礦化后水，另一路來自污水處理場處理合格的含油廢水。

二、循環(huán)水系統(tǒng)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循設(shè)計循環(huán)水量5000m3/h，設(shè)計給水溫度33℃，壓力0.5MPa，回水溫度43℃，回水壓力0.2MPa；設(shè)置鋼筋混凝土冷卻塔2座，單座處理量2500m3/h；設(shè)置4臺循環(huán)水泵，3大1小，大泵單臺處理量2200m3/h，揚(yáng)程40m，小泵單臺處理量800m3/h，揚(yáng)程40m；正常工況3開1備，主要供空分空壓、制冷站使用。

Ⅱ循補(bǔ)水來自熱電分部海淡經(jīng)礦化后的產(chǎn)水，來補(bǔ)充熱交換過程中的水損失，來維持系統(tǒng)水量平衡。為確保循環(huán)水水質(zhì)達(dá)標(biāo)，循環(huán)水場還配套設(shè)置了旁流過濾系統(tǒng)、自動加藥系統(tǒng)、循環(huán)水監(jiān)測換熱器用于水質(zhì)監(jiān)控。二、循環(huán)水系統(tǒng)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、工藝流程簡述來自各裝置經(jīng)過換熱的熱水（≤43℃，0.2MPa）,經(jīng)回水管線直接上冷卻塔頂進(jìn)入布水管線，經(jīng)冷卻噴頭均勻的噴灑在填料上，逐步下降落入塔下水池，在下落過程中與由塔外抽入的冷空氣進(jìn)行對流、熱交換，完成換熱過程，達(dá)到冷卻的目的。

為解決結(jié)垢、腐蝕問題設(shè)置了自動加藥裝置，通過定期/自動投加藥劑，達(dá)到延緩結(jié)垢和腐蝕的問題；為降低循環(huán)水濁度，在循環(huán)水供水管線上取3%的循環(huán)水進(jìn)行連續(xù)過濾，以去除系統(tǒng)雜質(zhì)，達(dá)到凈化水質(zhì)的目的。為監(jiān)測水質(zhì)狀況，為藥劑投加量調(diào)整、配方優(yōu)化提供基礎(chǔ)數(shù)據(jù)，兩套循環(huán)水場各設(shè)置了一臺監(jiān)測換熱器，模擬換熱器的實(shí)際運(yùn)行情況，通過在線數(shù)據(jù)分析（pH/余氯/電導(dǎo)/污垢熱阻等）和掛片腐蝕程度來判斷水質(zhì)最終處理效果。二、循環(huán)水系統(tǒng)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循環(huán)水涼水塔圖片二、循環(huán)水系統(tǒng)二、循環(huán)水系統(tǒng)冷卻塔減速機(jī)玻璃鋼風(fēng)機(jī)葉片驅(qū)動電機(jī)碳纖維軸二、循環(huán)水系統(tǒng)冷卻塔收水器冷卻塔填料二、循環(huán)水系統(tǒng)配水管道二、循環(huán)水系統(tǒng)冷卻塔噴頭二、循環(huán)水系統(tǒng)循環(huán)水泵：

作為循環(huán)水系統(tǒng)的動力輸送源，循環(huán)水泵在循環(huán)水系統(tǒng)中具有重要的地位

離心泵的基本構(gòu)造：由六部分組成，分別是葉輪，泵體，泵軸，軸承，密封環(huán)，填料函。離心泵的葉輪可分為封閉式、半封閉式和開敞式三種。二、循環(huán)水系統(tǒng)循環(huán)水旁濾器：一般取循環(huán)水量的3%～5%進(jìn)行過濾。出水濁度：≤3NTU二、循環(huán)水系統(tǒng)監(jiān)測換熱器自動加藥系統(tǒng)二、循環(huán)水系統(tǒng)二、循環(huán)水系統(tǒng)換熱器腐蝕、結(jié)垢圖片一、給水系統(tǒng)二、循環(huán)水系統(tǒng)三、污水處理系統(tǒng)四、雨水監(jiān)控及事故水池五、換熱站、制冷站六、地上管廊及地下管網(wǎng)目錄三、污水處理場1、基本情況

污水場總設(shè)計規(guī)模：400m3/h，其中含油污水處理系列處理規(guī)模為200m3/h，含鹽污水處理系列處理規(guī)模為200m3/h。

污水處理場采用污水調(diào)節(jié)均質(zhì)+油水分離+渦凹?xì)飧?溶氣氣浮+A/O+流沙過濾器的主工藝對來自煉油工藝裝置排出的含油污水、含鹽污水、初期雨水及廠前區(qū)（主廠區(qū)）生活污水等進(jìn)行處理。含油污水處理后作為循環(huán)水場的補(bǔ)充水回用,含鹽污水處理合格后達(dá)標(biāo)排放。污水處理場收集的污油經(jīng)脫水后送回全廠污油罐區(qū)。污水處理場產(chǎn)生的剩余活性污泥、油泥和浮渣經(jīng)濃縮脫水后，送電站裝置處理。三、污水處理系統(tǒng)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、工藝流程簡圖ProcessdiagramOily/salinewastewaterHomogeneousconditioningtankOil&waterseparatorPrimaryaerationpoolSecondarysedimentationpoolSandfilterReusewaterpoolOilywastewater:ReusewatersystemSalinewastewater:Disch.tosea三、污水處理系統(tǒng)隔油池三、污水處理系統(tǒng)三、污水處理系統(tǒng)SAF系統(tǒng)由兩級CAF組成。主要功能是：去除水中的SS、膠體類物質(zhì)及懸浮物。CAF系統(tǒng)主要有曝氣區(qū)、氣浮區(qū)、回流系統(tǒng)、刮渣系統(tǒng)及排水系統(tǒng)等幾部分組成。三、污水處理系統(tǒng)溶氣氣浮是使空氣在一定壓力下溶于水中并呈飽和狀態(tài)，然后驟然減壓釋放，這時溶解的空氣便以微小的氣泡從水中析出并進(jìn)行氣浮。氣泡直徑約為20～100μm；三、污水處理系統(tǒng)污水處理廠曝氣池圖片三、污水處理系統(tǒng)二沉池圖片三、污水處理系統(tǒng)

在正常運(yùn)轉(zhuǎn)情況下，砂濾出水可以達(dá)到如下出水效果：

濁度：＜1.0NTU

SS：＜10mg/l

藻類去除率接近100%三、污水處理系統(tǒng)流砂過濾器分機(jī)剖面圖離心鼓風(fēng)機(jī)外形圖三、污水處理系統(tǒng)污泥脫水機(jī)外形圖三、污水處理系統(tǒng)

★污水場廢氣處理1、廢氣處理

來自污水均質(zhì)調(diào)節(jié)罐、事故罐、渦凹?xì)飧　⑷軞鈿飧?、生化池、污油中間罐、脫水罐、污油濃縮罐、油泥濃縮罐、堿渣處理等單元設(shè)備、設(shè)施出來的廢氣通過管道、引風(fēng)機(jī)、引至廢氣處理系統(tǒng)，進(jìn)行預(yù)處理和深度處理、達(dá)標(biāo)后排放。

廢氣處理系統(tǒng)分為兩個系列，每個系統(tǒng)處理量為15000Nm3/h，具獨(dú)立運(yùn)行能力。三、污水處理系統(tǒng)WWTPwastegastreatment:Wastegastreatment:WastegasfromWWTPhomogenizationtank,accidenttank,cavitationairfloatation,dissolvedairflotation,biochemicalpool,sewageoiltank,dehydrationtank,sewageoilconcentrationtank,sludgeconcentratetank,alkaliresiduetreatmentunitequipment,flowthroughthepipeline,induceddraftfan,enterstothewastegastreatmentsystem,thepretreatmentandadvancetreatmentprocess,achieveemissionstandardsbeforedischarging.Thewastegastreatmentsystemisdividedintotwoseries,eachsystemhandlingcapacityis15000Nm3/h,withindependentoperatingcapacity.Wastewatertreatmentplant

廢氣收集系統(tǒng)簡圖WastegasTreatmentProcessWastegas15,000Nm3/hPre-treatment+Biologicaltreatment15,000Nm3/hAdvanceTreatmentFanExhaustgasstack三、污水處理系統(tǒng)臭氣加蓋收集系統(tǒng)三、污水處理系統(tǒng)臭氣處理系統(tǒng)三維模型圖三、污水處理系統(tǒng)

三、污水處理系統(tǒng)

2、工藝流程說明：

系統(tǒng)利用“預(yù)處理+兩級生物處理+深度處理”處理工藝，處理30000Nm3/h的廢氣。1）預(yù)處理：預(yù)處理采用隔油除油工藝，①去除臭氣中的粉塵，防止粉塵進(jìn)入后續(xù)生物滴濾池造成壓降增大；②通過洗滌，使進(jìn)入后續(xù)生物處理裝置的臭氣濕度達(dá)到飽和程度，滿足生物處理對濕度的嚴(yán)格要求；

③通過水洗滌，還可以去除部分可溶性廢氣成份、一定程度上減輕致臭成分突變造成的沖擊負(fù)荷。三、污水處理系統(tǒng)

2）生物處理段(包括生物處理1段和生物處理2段)。“一段生物滴濾池+二段生物濾池處理”二級生物除臭的組合，利用生物填料與氣體有效接觸來達(dá)到去除氣體有害成分的目的。

生物處理1段采用生物滴濾床工藝，適宜處理硫系污染物的微生物的生長、繁殖。生物處理2段主要作用是處理非硫系的惡臭物質(zhì)，旨在延長一段生物的功能，除了降解可生化性較好的硫化氫、氨等成分，也加強(qiáng)對苯、烴等碳?xì)浠衔锏奶幚恚⒀娱L臭氣與生物填料接觸時間。三、污水處理系統(tǒng)

3）深度處理段深度處理段主要針對生物除臭系統(tǒng)無法處理完全的烴類惡臭物質(zhì)進(jìn)行吸附處理。該裝置由吸附再生單元、再生尾氣冷卻處理、填料干燥系統(tǒng)、工藝管道等組成。處理后氣體滿足《石油煉制工業(yè)污染物排放標(biāo)準(zhǔn)》GB31570-2015）。其中，苯≤4mg/m3、甲苯≤15mg/m3、二甲苯≤20mg/m3、非甲烷總烴≤120mg/m3。三、污水處理系統(tǒng)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

深度處理排氣標(biāo)準(zhǔn)三、污水處理系統(tǒng)No.ItemEmissionconcentrationmg/m3Emissionratekg/hRemarks1H2S0.33GB1454-1993requirementsintheindicators,Note:exhaustcylinderimplementationof15meterscentralizeddischargestandards2Methylmercaptan0.043Methylsulfide0.334Dimethyldisulfide0.435Carbondisulfide1.56ammonia4.97Trimethylamine0.548Styrene6.59Odorconcentration2000(nounit)Table3:Advancetreatmentemissionstandards三、污水處理系統(tǒng)No.ItemEmissionconcentrationmg/m3Emissionratekg/hRemarks10benzene4GB31570-2015requirementsIndex11Toluene1512Xylene2013Non-methanetotalhydrocarbons120Table3:Advancetreatmentemissionstandards(continuous)三、污水處理系統(tǒng)一、給水系統(tǒng)二、循環(huán)水系統(tǒng)三、污水處理系統(tǒng)四、換熱站、制冷站五、雨水監(jiān)控及事故水池六、地上管廊及地下管網(wǎng)目錄

熱水站簡介：為了充分利用全廠低溫余熱，本項目設(shè)置熱水站1座，利用裝置低溫余熱，供應(yīng)110℃熱水，供制冷站使用。熱水站設(shè)計熱水泵4臺（3用1備），單臺流量900m3/h，正常生產(chǎn)時，熱源來自于芳烴聯(lián)合裝置，在制冷站開停工或芳烴聯(lián)合裝置發(fā)生異常情況時，熱源由1.0MPa蒸汽補(bǔ)充。經(jīng)溴化鋰機(jī)組、異構(gòu)化裝置、海淡換熱完成的熱水，約70℃0.3MPa通過管網(wǎng)進(jìn)入凝液緩沖罐，經(jīng)換熱水泵提升，送回芳烴聯(lián)合裝置繼續(xù)使用。四、換熱站、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

工藝流程簡圖四、換熱站、制冷站

溴化鋰制冷站：本項目設(shè)置兩座制冷站，廠前區(qū)制冷站和裝置區(qū)制冷站。

1）廠區(qū)區(qū)制冷站：主要為辦公樓、中心控制室、中心化驗室、消防站、維修站等建筑物提供空調(diào)冷凍水。制冷站利用工藝裝置的低溫余熱作為動力，采用熱水型溴化鋰吸收式冷水機(jī)組生產(chǎn)冷凍水。冷凍機(jī)組額定制冷量2910kW,配備4臺冷凍水泵，3用1備，單臺供出量500m3/h，冷凍水給水溫度7℃，壓力0.75MPa，回水溫度12℃，壓力0.25MPa。四、換熱站、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）裝置區(qū)制冷站：制冷站利用工藝裝置的低溫余熱作為動力，采用熱水型溴化鋰吸收式冷水機(jī)組生產(chǎn)冷凍水。冷凍機(jī)組額定制冷量2040kW,配備4臺冷凍水泵，單臺供出量350m3/h，冷凍水給水溫度7℃，壓力0.75MPa，回水溫度12℃，壓力0.25MPa。冷凍水經(jīng)溴化鋰制冷機(jī)組制冷至7℃后，送往各工藝裝置用冷單位及裝置區(qū)配電間、機(jī)柜間等，經(jīng)過用冷單位換熱后變成12℃左右的熱水返回至冷凍站，如此循環(huán)制冷。四、換熱站、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

溴化鋰制冷工作原理：在溴化鋰吸收式制冷中，水作為制冷劑，溴化鋰作為吸收劑。由于溴化鋰水溶液本身沸點(diǎn)很高，極難揮發(fā)，所以可認(rèn)為溴化鋰飽和溶液液面上的蒸汽為純水蒸汽;在一定溫度下，溴化鋰水溶液液面上的水蒸氣飽和分壓，小于純水的飽和分壓力;而且濃度越高，液面上的水蒸氣飽和分壓力越小。所以在相同的溫度條件下，溴化鋰水溶液濃度越大，其吸收水分的能力就越強(qiáng)。這也就是通常采用溴化鋰作為吸收劑，水作為制冷劑的原因。溴化鋰吸收式制冷機(jī)主要由發(fā)生器、冷凝器、蒸發(fā)器、吸收器、換熱器、循環(huán)泵等幾部分組成。四、換熱站、制冷站

四、換熱站、制冷站溴化鋰制冷機(jī)組圖片四、換熱站、