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Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,*,Detta r ett test!,Slide,*,0,Detta r ett test!,PHE Knowledge,板式换热器,宁 标,19/12/2007,Slide,1,Detta r ett test!,Topics to cover,目录,PHE,main components and,function,板式换热器主要组成部分和功能,Plates,板片,G,askets,胶垫,Frames,框架,Technological benefits,技术优势,2,Detta r ett test!,Manufactory in China,中国组装工厂,3,Detta r ett test!,Alfa Laval 40%,Tranter,&,SWEP 13%,GEA 11%,APV Systems 10%,Hisaka 5%,Sondex 4%,API Schmidt-Bretten 3%,Others 14%,Compact HE Market(1350 M,),紧凑型换热器市场份额,540 M,170 M,150 M,130 M,70 M,60 M,40 M,190 M,Heat Exchanger Market,换热器市场份额,Cooling Towers 15%,冷却塔,Compact HEs 15%,紧凑型,Air Products 13%,空气换热装置,Others 12%,其他类型,Shell&Tube 45%,列管式,4000 M,1350 M,1350 M,1200 M,1100 M,Total HE Market(9000 M,),整个换热器市场份额,4,Detta r ett test!,Most common applications,ESE,Biotech,生物技术,Pharmaceutical,制药,Solvent Recovery,溶剂回收,Pasteurization,巴氏杀菌,Evaporation,Condensation,蒸发冷凝,CIP,Water,System,WFI/PW/RO/SO/DI,Heating&Cooling,加热冷却,Beverage,饮料,Dairy,乳品,5,Detta r ett test!,A L PHE range,Slide,6,Detta r ett test!,Alfa Laval Heat Exchangers,Alfa Laval,换热器,“,ESE heat exchangers”,卫生领域常用换热器,Gasketed,胶垫式,Single wall,单板式,Double-wall,焊接双板式,Gemini,非焊接双板式,Semi-welded,半焊式,Tubular,管式,Shell&Tube,列管式,Tube-in-Tube,管套管式,Brazed,钎焊式,Copper Brazed,铜焊式,Fusion Bonded,熔焊式,“,Alfa Laval Other Heat Exchangers”,其他类型的换热器,Spiral,Compablock,ConthermAlfaRex,AlfaVap,AlfaCond,(Air products),7,Detta r ett test!,Alfa Lavals Historical Base,Alfa Laval,公司发展历程,1878,1931,1917,The continuous,milk separator,developed by,Gustaf,de Laval,Gustaf,de Laval,发明牛奶连续分离机,Plate heat exchangers,developed to improve,pasteurisation process,板式换热器的发明改进了,巴氏杀菌工艺,The first vacuum-,operated milking,Machine,第一个真空吸奶机,8,Detta r ett test!,PHE main components,板式换热器主要组成部分和功能,c,arrying,bar,导杆,p,ressure,Plate,压力板,p,late with gasket,板片和胶垫,t,ightening,bolts,收紧螺栓,f,rame,plate,框架板,9,Detta r ett test!,PHE-flow principle,板式换热器:交换原理,Click on animation to play again,10,Detta r ett test!,Plate-corrugation function,板片:波纹的作用,Mechanical,机械方面,Provide support points,形成支撑点,Allows thin material,提高强度,使板片更薄,Flow dynamic,流体力学,Creates high turbulence,加大流体湍流,High efficiency,提高换热效率,Minimize fouling,避免堵塞,Cork-screw flow,螺旋流动,11,Detta r ett test!,接触点,12,Detta r ett test!,Heat Transferred in a HE,板式换热器的热交换原理,The temperature profile at one point of the plate wall,板片壁面上任一点的温度剖面图,板厚,流动方向,T1,热侧温度,T,2,Bulk temperature on cold side,热侧,流动方向,冷测,总的热量的传递(,Q),由两边的温差推动,T,4,More turbulence,湍流越厉害,Thinner laminar film,层流层越薄,Less temperature drop,更小的温度损失,Better Heat Transfer,更好的热传递,T,3,13,Detta r ett test!,Plate-corrugation and channels,板片:波纹和通道,L:Low theta,L:,小夹角,H:High theta,H:,大夹角,T,wo,plate corrugations(L and H),不同的波纹,(,L and H),L+L=L channels,L+L=,L,通道,L+H=M channels,L+H=,M,通道,H+H=H channels,H+H=,H,通道,These form three different channels(L,M and H),不同的流道(,L,M and H),14,Detta r ett test!,Plate-parallel flow,板片:平行流,15,Detta r ett test!,Plate-parallel flow,板片:平行流,Parallel flow advantages,平行流的优点,One plate&one gasket,只须一种板片和胶垫,Identical plates in the plate pack,用同样的板片组成整套板片组,Rotated 180 to achieve both sides,转动180度就可以是下一张板片,Less spares required,更小的维修保养空间,Fully supported diagonal,板片之间更好地支撑,Higher design pressure or thinner plate material,可以达到更高的设计压力和使用更薄的板片,No crossing of nozzles,板孔不会磨损,180,Parallel flow configuration is achieved through the chocolate pattern,平行流是通过阿法拉伐专利技术巧克力壮分流区来达到更好的传热效果的,16,Detta r ett test!,Plate-distribution area,板片:分流区,Chocolate pattern,巧克力壮分流区,Distributes flow evenly over the plate,均匀地分配流体,Same,P for distance A and B,A,段和,B,段,同样的压差,P,Uses a minimum of P for distribution,流体经过分流区压力损失最少,Gives more P for efficient heat transfer,使更多的压力降用来推动更高的湍流,Allows parallel flow configuration,使平行流成为现实,Alfa Laval innovation Alfa Laval,的创新和专利,A,B,Avoids dead-spots in the far corner,避免在远区产生死角,Full use of heat transfer area,充分利用板片的换热面积,No fouling in stagnant zones,不会在死角处形成沉积物的堆积进而对板片腐蚀,17,Detta r ett test!,Plate materials,板片材料,Standard materials and thicknesses,标准材料及厚度,AISI 304(stainless steel)304,不锈钢,Usually 0.4 or 0.5 mm thickness,通常厚度为,0.4,或,0.5mm,Cheapest possible solution,最为便宜,AISI 316(stainless steel)316,不锈钢,Always 0.5 and 0.6 mm,通常厚度为,0.5,或,0.6mm,Some with thicker plates(high-pressure applications),高压工况时厚度较厚,254 SMO(high-alloy stainless steel),合金,SMO 254,Usually in 0.6 mm to allow stock-keeping,通常库存都是,0.6mm,厚度,Titanium,钛板,Always 0.5 and 0.6 mm,通常是,0.5,或,0.6mm,Some with thicker plates(high-pressure applications),高压工况时厚度较厚,Some,PHEs,with 0.4 mm(low-pressure applications),有些低压工况时板片厚度,0.4mm,Alloy C-276(Nickel alloy),合金,C-276,（镍基合金）,Usually in 0.6 mm to allow stock-keeping,通常的库存都是,0.6mm,厚度,100%,115%,250%,300%,600%,RelativePrice,相对价格,18,Detta r ett test!,Plate materials,板片材料,Standard materials and typical uses,标准材料及其典型应用,AISI 304,304,不锈钢,Typically in clean water-water duties,干净的水水工况,Example,up to 50,ppm,chlorides at 50C,50C,下,50ppm,的氯离子浓度,AISI 316,316,不锈钢,Typically in water-water duties,普通的水水工况,Example,up to 250,ppm,chlorides at 50C,50C,
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