海水反渗透系统中使用容积式泵和等压能量回收的优点

Thebenefitsofusingpositivedisplacementpumpsandisobaric

recoverydevicesforSWRO

海水反渗透系统中使用容积式泵和等压能量回收的优点

INDEX目录TheMarketTrend市场趋势TypicalSWROsetups典型海水淡化系统配置MembraneFeedPressurevariations膜进水压力变化HPPumpFlowControl–Centrifugalpump离心泵的高压流量控制AnnualPowerCost年电费SWROenergyconsumptionversusrecoveryrate不同回收率下海淡系统能耗SpecificEnergywithdifferentTechnologies不同技术的比能AnnualPowerCostwithdifferentTechnologies不同技术的年电费Redundancy冗余性Conclusion总结INDEX目录TheMarketTrend市场趋势TypicalSWROsetupsMembraneFeedPressurevariationsHPPumpFlowControl–CentrifugalpumpAnnualPowerCostSWROenergyconsumptionversusrecoveryrateSpecificEnergywithdifferentTechnologiesAnnualPowerCostwithdifferentTechnologiesRedundancyConclusionTheMarketTrend市场趋势Amongseveraldesalinationtechniques,SWROhasemergedasthepreferredmethod.众多脱盐技术中，海水反渗透技术已成为最优选的技术。Fordecades,thecentrifugalpumphasbeenconsideredasbestchoiceforlargerSWROplants.数十年来，离心泵被认为是大型海淡系统的最佳选择。Theincreasingfocusinenergysavingsreductionhasledtotheinventionofnewandhighlyefficientpumpingsolutions,mostnotablythepositivedisplacementpump.节能降耗的备受关注引起了新的高效率泵的革新，其中最显著的是容积式泵。TheinventionofERDshashelpedtofurthercutdownontheenergyrequirementsofSWROandreducetheCO2emissionsgeneratedbythedesalinationprocess.能量回收的发明进一步降低了海水淡化的能耗，降低了由脱盐工艺带来的CO2排放。TheMarketTrend市场趋势Themostefficientset-upforSWROandhigh-brackishROisbasedonahigh-efficientpositivedisplacement(PD)pumpcombinedwithanisobaricERD.海水淡化和高含盐反渗透系统的最节能配置是使用容积式泵和等压式能量回收。TheERDcanreducetheenergyconsumptionbyasmuchas60%.能量回收可降低近60%能耗。About50-60%ofallenergyconsumedinaSWROsystemisconsumedbytheHPpump海水淡化系统中高压泵的能耗占总能耗的50-60%。INDEX目录TheMarketTrendTypicalSWROsetups典型海水淡化系统配置MembraneFeedPressurevariationsHPPumpFlowControl–CentrifugalpumpAnnualPowerCostSWROenergyconsumptionversusrecoveryrateSpecificEnergywithdifferentTechnologiesAnnualPowerCostwithdifferentTechnologiesRedundancyConclusionTypicalSWROsetups典型海水淡化系统配置Turbochargersetup透平式配置Pressureexchangersetup压力交换式配置INDEX目录TheMarketTrendTypicalSWROsetupsMembraneFeedPressurevariations膜进水压力变化HPPumpFlowControl–CentrifugalpumpAnnualPowerCostSWROenergyconsumptionversusrecoveryrateSpecificEnergywithdifferentTechnologiesAnnualPowerCostwithdifferentTechnologiesRedundancyConclusionMembraneFeedPressurevariations

膜进水压力变化ToachieveaconstantpermeateproductionallSWROHPpumpsystemmustbeabletosupplyavaryingfeedpressuretothemembranestoaccommodatechangesinsalinity,membranefoulingandfeedwatertemperature.为取得恒定的产水量，海淡系统高压泵必须能根据含盐量、膜污染和进水温度的变化来提供不同的进水压力。

Example:6barannualvariationINDEX目录TheMarketTrendTypicalSWROsetupsMembraneFeedPressurevariationsHPPumpFlowControl–Centrifugalpump离心泵的高压流量控制AnnualPowerCostSWROenergyconsumptionversusrecoveryrateSpecificEnergywithdifferentTechnologiesAnnualPowerCostwithdifferentTechnologiesRedundancyConclusionHPPumpFlowControl–Centrifugalpump

离心泵的高压流量控制AnincreasingsystempressurewillreducetheflowwhenusingaCFpump.使用离心泵时，提高系统压力会使流量降低。Addingcomfortmarginstothecalculatedsystemcurvetoensurethatasufficientlylargepumpisselectedwillgenerallyresultininstallinganoversizedpump.根据计算的系统曲线而留足余量，以确保选择足够大的泵，通常导致安装一台过大的泵。Thepumpwilloperateatanexcessiveflowrateorwillneedtobethrottled,leadingtoincreasedenergyuseandreducedpumplife.这台泵将过流量运行或需要节流，这将导致能耗的增加和泵寿命的减少。HPPumpFlowControl–Centrifugalpump

离心泵的高压流量控制HPPumpFlowControl–Centrifugalpump

离心泵的高压流量控制INDEX目录TheMarketTrendTypicalSWROsetupsMembraneFeedPressurevariationsHPPumpFlowControl–CentrifugalpumpAnnualPowerCost年电费SWROenergyconsumptionversusrecoveryrateSpecificEnergywithdifferentTechnologiesAnnualPowerCostwithdifferentTechnologiesRedundancyConclusionAnnualPowerCost–1,000CMD(264,172GPD)

年电费AnnualPowerCosts,APPpump:361,000USDat0.4USD/kWhAnnualPowerCosts,CFpump:559,000USDat0.4USD/kWh使用APP泵年电费：361,000USD(以0.4USD/KWH计）使用离心泵年电费：559,000USD（以0.4USD/KWH计）INDEX目录TheMarketTrendTypicalSWROsetupsMembraneFeedPressurevariationsHPPumpFlowControl–CentrifugalpumpAnnualPowerCostSWROenergyconsumptionversusrecoveryrate不同回收率下海淡系统能耗SpecificEnergywithdifferentTechnologiesAnnualPowerCostwithdifferentTechnologiesRedundancyConclusionSWROenergyconsumptionversusrecoveryrate

Systemproducing1,000CMD(264,172GPD)

不同回收率下海淡系统能耗（以产水1,000m3/d为例）INDEX目录TheMarketTrendTypicalSWROsetupsMembraneFeedPressurevariationsHPPumpFlowControl–CentrifugalpumpAnnualPowerCostSWROenergyconsumptionversusrecoveryrateSpecificEnergywithdifferentTechnologies不同技术的比能AnnualPowerCostwithdifferentTechnologiesRedundancyConclusionSpecificEnergywithdifferentTechnologies

不同技术的比能INDEX目录TheMarketTrendTypicalSWROsetupsMembraneFeedPressurevariationsHPPumpFlowControl–CentrifugalpumpAnnualPowerCostSWROenergyconsumptionversusrecoveryrateSpecificEnergywithdifferentTechnologiesAnnualPowerCostwithdifferentTechnologies不同技术的年电费RedundancyConclusionAnnualPowerCostwithdifferentTechnologies

不同技术的年电费UsinganAPPpumpandisobaricERDinsteadaCFPumpandaTurbochargerfor10yearsthepowercostsavingsare使用APP泵和等压式能量回收代替离心泵和透平式能量回收，10年可节约电费：2,000,000$INDEX目录TheMarketTrendTypicalSWROsetupsMembraneFeedPressurevariationsHPPumpFlowControl–CentrifugalpumpAnnualPowerCostSWROenergyconsumptionversusrecoveryrateSpecificEnergywithdifferentTechnologiesAnnualPowerCostwithdifferentTechnologiesRedundancy冗余性ConclusionRedundancy冗余:X00,000USD x0,000USDX00,000USD X00,000USDUptimewithnoredundancy

无冗余正常运行5pumpsaregiving 4pumpsaregiving100%waterproduction 80%waterproduction5台泵供给100%的流量 4台泵供给80%的流量1pumpsisgiving Nopump,nowaterproduction100%waterproduction

无泵无产水1台泵供应100%的流量

LessEnergy,morePowerCostSavings

更低能耗，更多的电费节省Axialpistonpumpsaremoreenergy-efficientthancentrifugalpumps.轴向柱塞泵比离心泵更高效KeyenergydriversforSWRO.High-pressurepumps:2/3Pre/Post-treatment:1/3海水淡化的能耗决定因素：高压泵：2/3预处理和后处理：1/3LessEnergy,morePowerCostSavings

更低能耗、更多的电费节省APPpumpsdeliverupto90%totalefficiencyComparedto60-80%forcentrifugalpumpSaveupto40%electricitycomparedtocentrifugalpumps相比于效率60-80%的离心泵，总效率高达90%的APP泵，可节约近40%能耗Powercost:0.4USD/kWhGPD264,172528,344792,5161,056,6881,320,860Annualpowersavings(kWh)270,500327,100490,700431,800389,600Annualpowercostsavings($)108,200130,800196,300