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ID:48021367
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时间:2020-01-22
《除雾器冲洗系统程序中文版.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、Washingprocedure冲洗程序1.Designofwashingprocedure冲洗程序的设计TheobjectiveofRPT’swashingscheduleistomaintainacleanandopenmisteliminatorandtoassurelowpressuredropaswellasundisturbedoperationoftheFGDandthepowerplant.RPT公司的冲洗程序是为了保证除雾器清洁可靠从而确保较低的压降,保证脱硫系统和电厂的运行正常
2、。Theexperienceshowsthatafrequentwashingofthemisteliminatorwithahighquantityofwashwater–inparticularofthecoarsemisteliminator–protectsthemisteliminatorfromcloggingandavoidshighpressuredropandlongoperationcycles.根据经验显示频繁地冲洗除雾器需要大量的冲洗水,特别是第一级除雾器,防止除雾器堵塞避
3、免产生高压降和长时间运行循环。Accordingly,thedesignproposalforthewashingscheduleisdirectedatusingahighquantityofwashwaterforthisreason.Smallerwashwaterquantitiesarepossible–ifneededthisshouldbediscussedindetail.因此冲洗程序的设计直接就是采用大量的冲洗水就是这个原因,少量的冲洗水是有可能的,如果需要可以再详细讨论。2.D
4、imensioningofpumpandsystem泵和系统的尺寸InitsquotationRPTprovidesthekeyparametersforthedimensioningofthewashingsystemwhichconsistsofpumpdimensioning,numberofvalvesperlevelandwashwaterquantity(table1–anexample).Additionaldetailisprovidedinthetechnicaldatashee
5、ts.RPT提供冲洗系统定尺寸的关键参数包括泵的尺寸,每层的阀门数量和冲洗水的数量(图1-例子)附加详细的技术参数Coarsemisteliminator:frontrear第一级除雾器前后spraylevels(冲洗层数)11valvesperlevel(每层的阀门数)88waterconsumption(m³/h)(水耗量)25.525.5Finemisteliminatorfront第二级除雾器spraylevels(冲洗层数)1valvesperlevel(每层的阀门数)8watercon
6、sumption(m³/h)(水耗量)171REAPLASTIKTECH(ASIA)CO.,LIMITED地址:7/FKinOnCommBldg49-51JervoisStSheungWanHK香港上环苏杭街49-51建安商业大厦7楼全层HongKong,Chinapressureatflange(bar,g)(表压)2.0minpumpcapacity(m³/h)(最小泵容量)173Table1Thedimensioningofthepumpconsidersthemaximuminstanta
7、neousflow.Thisistheflowwhichisgeneratedbywashingthesectionwiththelargestsurface.Thisisusuallythemiddlerowofmisteliminatormodules.泵的尺寸考虑的是最大的瞬时流量,这是冲洗最大面积产生的流量,一般都是除雾器中间的组件。Thedesignruleisthatthesurfaceshouldbewashedwithabout60l/m²min.Incaseoftheroofde
8、signitmustbeconsideredthatthemisteliminatoristiltedwith35°.Theeffectivesurfaceat35°isabout120%ofthesurfaceinthehorizontalplane.Accordinglythedesignquantityis73l/m²minforthesurfaceinthehorizontalplane.设计的原则是表面要用流速60l/m²min的水冲洗,因为屋顶式除雾器的设计必须保证除雾
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