1、重力流管道管径设计 S? ? 300400K1 L ,) 559 ZE,iI 9 。1oM 5 !91 F、nB 8ZE。 G L 8。 :A8V 7 ,#nA8VB _ 。 !9, !9 YY5E 9 , L !B ,9 5E ;L !B5,9 E 。 5, j, 9 5, 8 f T 8s9 , / !9 。 k 5 f ,yN,A1 s,s 9 ZE。2 “dsm1 “d Uim。A8VV-1 V -2, V-1V-2 7 !。m1 “d UimV-1 T sYP0 (Pa)T0 (K), V-2 T sYP2 (Pa)T2 (K), V-11V-2 。 , V-1A )H0 (m),
2、V-2 g)H2,5A8 g)H1,M T sYP1T1。A8 L/ VV-1 _V-2。Ls,T/L:(1) T , P0、P1、 P2M。(2)5 A8( )。(3)A8 M,:T0、 T1、 T2M,i OA8 。(4)5M( M,L) ,L=9 M Hs 9 V)。 L,“dT ,m1-m2=0 (1)T, m1 g , m2 g , kg/s。A m1m2M。“d ? T,(u122g +H1+P1g)m1- (u222g +H2+P2g)m2=E (2)T, u1u2sY5 g g ,m/s;g F , 9.807m/s2;A8 , kg/m3;E“d , J。“d ,5 M,yN
3、“d = 8 M,u1u2M。“d g 、5 g , E VVr:E=m (u2g)(k1+LD +k2) (3)20 CHEMICAL ENGINEERING DESIGN 化工设计 2004,14(2):) =。 1998 M82000 (8b)=64/Re Re2000 (8c)T(8b) au , T(8c) a 。4 1b b5L !9 (Simpson):(Hill)T34 , TV-1A8 ,A B H, 8|$ 5 = A8。 9 “ ZE。 LTM1, 9 o。 9Z:u/ (gD)0.5=3.24 (h/D)2.5 (9)T, hV-1 =A, m。ZPH (Froude
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5、0m, H5。5.1 H59 T(7b)9 X=2.685D=0.1m,N H=0.017,T(6):D= (7.5)0.5 (1.5 +0.017 1000.1)0.25/ (1.865 7500.52.680.25) =0.087m f , |DN1005 a。5.2 1b b5L !95, D=0.1, T(5b)、 (5a)u=1.274m/s, Fr=1.286。|D=0.15, u=5.662m/s, Fr=0.4668。|D=0.20, u=3.185m/s, Fr=0.2274。Vn,1 P l0.31,5DN200。6 ) (1) A8 5 ZE,B Z(6) f ; 6B
6、P l0.311b b f 。9 TV , f !95111b b !95l。(2) f /, V -1A8 , iYV g5. !V-2。 L= !9, PB VZLh“ 。 !V-1A8 f ,A8vZ(10)9 H, 。 7,v 5L i A e 。 T H, V-1A V ?Z(10)9 /, /5L M 。 6, !9iA8 H,9? 3 f。 /5C 8 , V ?) ,i?5。 !9, TC 8 Vs, f !9 5。 !95iV -1 g5 - ! , K6。 !9 AM g5L !9UA, V P ) , LlrT z。(3) !9,h m9 T, 1b b ,sYI9 ,e
7、 !9。(4), T T M, Kv 5 !9,“ ? A8 w 。9 5=B ,Y/B。 I D1 HG/T-20570.7-95,5 9 2 ?6. ., 19903 Hill, P.D., Designing piping forgravity flow, Chemical En-gineering, Sep.5, 19834 F.C.Yu, Line sizing for gravity flow piping, HydrocarbonProcessing, Nov., 1997( l 2003-09-16)(上接第10页) F F _ 1992 M9 7 S F SRJW -1b4,
8、1999 M6z, W h3Q, ;BQ, 4BQ, T5Q。3 yp(1) F F _b4 R481-2B。1 pMoO3 (m%)c S K e, O 。(2)1b4 P ,1F T,+Y _ 、 、 ,h Q b45; H,1 。(3) F _b4 “ -RJW-2 V。(4)1SD-1b4,V “ -v i Pf A,rTz, p 481 -2B,y P, _ 1l,l, ?; b , V4 F _) ,9Frm。( l 2003-10-21)22 CHEMICAL ENGINEERING DESIGN 化工设计 2004,14(2)ABSTRACTSLatest Converted
9、Oxalate Process Based on Catalyzed CouplingReaction under Atmospheric Pressure of CO Gas PhaseGuo Rongqun(EngineeringResearchInstituteof LuoyangPetrochemicalEngi-neering Corporation, Luoyang 471003)Introduce basic philosophy, process flow sheet, specifications ofraw materials and products, and utili
10、ty consumptionof latest processforconverted oxalate based on catalyzed coupling reaction under at-mospheric pressureof CO gasphase.The processfeatures, economicandsocialbenefitsare analyzed.The technology isadvanced, andtheprocess has a goodenvironment.It canbe reference to domestic fer-tilizerenter
11、prisesto developnew products.Key words CO coupling reactionoxalate cleanprocessProbe into Glycerol Process Route based onFermentation Process ProductionLi Yong(Hunan Chemical &Pharmaceutical Design Institute, Chang-sha 41007)Briefly introduce Technical progress of glycerol production basedon ferment
12、ationprocessand carry outcomparisonof two existing fer-mentationprocessesofhighpenetrating-pressureresistant fermenta-tion enzyme.New process with two stepsto produce glycerol iscon-sideredasdesirableprocessatpresent.Basicphilosophy, processflowsheet, technical features and pursuing of commercializa
13、tion of thenew fermentation processwith two steps are introduced too.Key words glycerol fermentation process with two steps commer-cializationCommercial application and present situation andsuggestion of usage selection for catalyst ofparaffin hydrogenation and purificationYang Qiuxin(TheFirst Petro
14、leum Plant of Fushun Petrochemical Subsidiaryof SINOPEC, Fushun 113008)Introduce commercialapplication and present situation of catalystsof paraffin hydrogenationandpurificationforfive type of catalyst 481-2B, RJW-1, RJW-2, FV -1 and SD-1.Suggestion is putforward for catalyst selectionof different h
15、ydrogenation units.Key words catalyst paraffinhydrogenation and purificationStress Analysis of Lined PipelineHu Shujun(Luoyang Petrochemical Engineering Corporation, Luoyang471003)Probe into stress influence of lining to large diameter of pipelinethrough primary and secondary stress analysis of line
16、d pipeline ofcatalytic and cracking unit, andstresscalculation method of convert-ing linedpipelineinto equivalent steelpipeline whichisinputinto pipestress calculationprogram CAESAR.Key words concrete lining pipeline stress analysisPipe Diameter Design of Gravity Flowed PipeLiuXingwei(China Tianchen
17、 Chemical Engineering Corporation, Tianjin300400)Calculation methods of pipe diameterof gravity flowed pipeis dis-cussedin combination of engineering practices, and calculation pro-gram prepared.Key words gravity flow pipe diameter designHow to Avoid Losing Effect of Steam Tripping ValveLi Han(Hualu
18、 Engineering Science &Technology Co., Ltd., Xian710054)Put forwardremindful pointsforselectionand application of steamstripping valve indesign, so as to have long term andsteady opera-tion.Key words steam stripping valve applicationApplication of Technology of High Pressure Injectionto Clean Railway
19、 Tank TrainShenWendong,et al(Tianjin Petrochemical Design Institue, Tianjin 300271)Introduce that highpressure waterinjectiontechnology having ad-vantage of less pollution, high efficiency and less cost is applied forcleaning inside of railway oil tank train in storage and transportationof petrochem
20、icalproductsKey words storage andtransportation cleaning technologyApplication of Screw Plate Heat Exchanger onProduction of Ammonium ChlorideShenHuanghong,et al(Chemical Department of western Collegeof Hunan TechnologyUniversity, Yueyang 414000)Introduce processcalculation, process flow sheet, equi
21、pmenterec-tionandeffect of productionapplicationofscrew plate heatexchangerusedin ammoniumchloride production indouble decomposition reac-tionproductionof potassium nitrideandammoniumchloride process.It has advantage of less investment, more production capacity andeasy operationetcKey words ammonium
22、 chloride screw plate heat exchangercoolingcrystallizationDesign of Circulation Cooling Water Treatment ofPetrochemical UnitChen Yingxin(Yangtze Petrochemical Design Engineering Co., Ltd., Nan-jing 210048)Scaling, corrosion and biological silt may be formedin usage pro-cessof circulation cooling wat
23、er.Purpose of treating the circulationcooling water is to eliminate or reduce scaling, corrosion and siltformedinsystem, andto have the system safely and reliably operat-ed.Introduce circulation cooling water treatment project of NanjingSolvent Co., Ltd., Yangtze Petrochemical.Key words circulation
24、cooling water treatment designNew Type of Mixing Unit of Calcium Phosphate ProductionYang Kedun(Ningxia PhosphorusFertilizerPlant, Yinchuan 750021)Introduce a new type of mixing reactor which is composed of oneinjection tube andone defection chamber for production of phospho-rus fertilizer.Ithasadva
25、ntageof simple construction, energy saving,easy operation, light weight, lesscost, and good efficiency of appli-cation etc.Key words calcium phosphate new type of mixing reaction unitNew Process Route of Denitrification and Phosphorus RemovalLiu Liling,et al(Environmental Science &Engineering Colleg
26、eof Hehai Uni-versity, Nanjing 210098)Introduce philosophy and two new processesof denitrification andphosphorusremoval.The new nitrification and phosphorus removalprocesshas mitigated conflict of shortage of carbon supply source inconventional process.Denitrification bacterial uses nitrate insteadofoxygen to be electronic receiver for coagu-lating phosphorus.Gasexposing amount can be savedandoperationcost reduced.It isa de-sirable denitrification andphosphorus removalprocess.12004, 14(2) ABSTRACTS OF CHEMICAL ENGINEERING DESIGN
