Sheet2

Sheet1BNG TNH TON THIT K THIT B SY THNG QUAYTTTc vit bi:Trn Vn ByChnh sa ln cui:TDT:096 223 282604.12.2014Nhit ni suy:36.636382861Kt qu nht:16.6370927547Bng I. 255 - 318 - STT1Nhit ni suy:340.5Kt qu nht:54.1053Nhit ni suy:36.636382861Kt qu hs dn nhit:2.7297274457Email:TranVanBay1993@gmail.comNhit -50-40-30-20-10010203040506070809010012014016018020025030035040050060070080090010001200H s dn nhit2.0352.1192.22.282.3612.442.512.62.672.762.832.92.973.053.133.213.343.493.643.7763.934.274.614.915.235.746.2256.717.177.638.079.15 nht ng hc9.2310.0410.812.7912.413.2814.1615.061616.9617.9518.9720.0221.0922.123.1325.4527.830.0932.4934.8540.6148.3355.4653.0979.2896.89115.4134.8155.1177.1223.7S LIU CHO TRC:16.247547011715.864365097424.060640189310.581181068416.504001691816.504001691816.557274457516.623819988916.637092754716.627001903216.586911051816.516820200416.450092966116.71027466916.603547434715.779820411915.654774986215.964865837615.286365943315.573093177616.03051130567.666657513710.77434819670.3134354524-42.0749313287-2.3183329782-7.3886055324-13.292541725-20.1628142792-34.8399957706-47.3637227934FFFFFFFFTFFFFFFFFFFFFFFFFFFFFFFERROR:#REF!Cng bc hi m:Nhit khi vo:2.7627456162.73975470122.73309106292.73875470122.72942742462.696454682.74972744572.716454682.72972744572.736454682.736454682.736454682.70309106292.70309106292.70309106292.79813648862.71477287152.71477287152.80112740352.6721001482.81912740352.81912740353.02981829722.90447285033.37684555263.49268645693.49268645693.65852736123.65852736123.83120008462.8678364674FFFFFFFFTFFFFFFFFFFFFFFFFFFFFFFERROR:#REF!Nng sut:Nhit khi ra:40.860538.95884.5295-1.269543.24443.24443.90545.18745.80846.709547.58148.422548.963547.400547.901551.02851.3587550.7572551.7551.42951.035654.583254.105355.910337.5069551.1920548.8565545.65741.521532.0123.4365ERROR:#DIV/0!FFFFFFFFFFFFFFFFFFFFFFTFFFFFFFFF m ban u ca VLS:Nhit mi trng: m cui ca VLS: m mi trng:Ph lc 5 - 349 - TTTKHTSTFFFFFFFFTFFFFFTFF010305070901000.760000240.7610.7610.758500120.7620.7620.760000240.76550656040.7610.7610.76125328020.7620.7620.76125328020.76527953550.7610.7610.76113976780.7620.7620.7611397678-100.760.7610.7610.7610.7620.7620.7620.789000240.789500120.789500120.789500120.789500120.7940.789000240.79450656040.79225328020.79225328020.79225328020.79225328020.7940.79225328020.79427953550.79213976780.79213976780.79213976780.79213976780.7940.792139767800.7890.790.7910.7920.7930.7940.7940.8040.803000240.804500120.802000240.805500120.801000240.8040.8040.80850656040.80725328020.80750656040.80825328020.80650656040.80750656040.8040.80827953550.80713976780.80727953550.80813976780.80627953550.8072795355Cc s liu tra bng s c in trong khi tnh ton, ngay sau phn cng thc tnh.50.8040.8040.8060.8070.8090.810.8110.818000240.818000240.818000240.818000240.818000240.818000240.818000240.82350656040.82350656040.82350656040.82350656040.82350656040.82350656040.82350656040.82327953550.82327953550.82327953550.82327953550.82327953550.82327953550.8232795355100.8180.8190.8210.8230.8250.8270.8280.84700048010.84700048010.84700048010.84700048010.84700048010.84700048010.84700048010.85801312080.85801312080.85801312080.85801312080.85801312080.85801312080.85801312080.8575590710.8575590710.8575590710.8575590710.8575590710.8575590710.857559071Cc s liu cc mu vng c vin xanh l bt buc phi nhp vo.200.8470.8490.8530.8570.8610.8650.8670.87600096020.87650084020.87500096020.87500096020.87500096020.87500096020.87600096020.89802624160.89577296140.89702624160.89702624160.89702624160.89702624160.89702624160.89711814210.89497837430.89611814210.89611814210.89611814210.89611814210.8961181421300.8760.880.8870.8950.9030.9110.9150.90500168030.90550156030.90250180030.90500168030.89800192040.90700168030.90500168030.94354592280.94129264260.9437992030.94354592280.94205248320.94554592280.94354592280.94195674870.93981698090.94209651640.94195674870.94023628420.94395674870.9419567487Cc s liu mu vng khng c vin xanh c th thay i s liu hoc gi nguyn400.9050.9120.9250.940.9540.970.9770.93400264050.93250300060.93100312060.93600288060.91500360070.87000480090.93400264050.99457216441.0013320051.00258528521.00207872480.9975984060.98013120811.00207872480.99207489070.9984941940.99963396180.99935442630.99419303280.97559071040.9993544263500.9340.9450.970.9961.021.051.070.96300456090.96300456090.94500600120.94500600120.9450060012-1.25993518740.96300456091.06762464771.06762464771.08266401011.08266401011.08266401010.22677130881.08266401011.06331117491.06331117491.07698838811.07698838811.07698838810.1654745911.0769883881Mt s s liu phi c theo hng dn ca dng ch c nn , tra s liu ri nhp vo600.9630.9821.021.071.121.171.440.99200672130.98500840160.97000960190.92001200230.88501320262.99995679160.99200672131.14618369131.17772961411.19026241611.19532802011.18786082222.00881912751.19532802011.13982699461.16978374331.18118142091.18397677611.17537445372.0496836061.1839767761700.9921.021.091.171.271.381.21.02001200231.01001440280.96501800350.86502280440.62003120610.35003840741.02001200231.29532802011.34039362421.37799203021.38812323831.33585285241.23104966441.38812323831.28397677611.32677213131.36096516421.36655587461.30633961791.19472568361.3665558746i vi TBS khng lt gch bn trong th b qua cc dng c nn mu xanh v nn thay i li k hiu cng thc.801.021.071.191.341.531.791.951.05001920371.03002400470.8800360070.5050540105-0.7199039814-3.32983436791.05001920371.49052483221.58065604031.70598406041.74397609061.48262416110.46952667791.74397609061.47236284181.55795355221.67193032831.69289549251.39181420890.31287951031.6928954925901.051.131.331.632.082.883.571.08002880561.03004080790.5950756147-1.479824766-21.8141274308ERROR:#DIV/0!1.08002880561.74078724831.96611526852.32956652692.539789094-1.7986529358ERROR:#DIV/0!2.5397890941.71354426271.92752103882.25805368952.3740609312-2.6238883768ERROR:#DIV/0!2.3740609312Cc c mu trng khng c thay i g.99.41.081.21.542.173.6310.91.07003120611.02504200810.6200744144-1.479824766-21.8141274308ERROR:#DIV/0!1.07003120611.78585285241.98864807052.32703372492.539789094-1.7986529358ERROR:#DIV/0!2.5397890941.75633961791.94891871642.25665601192.3740609312-2.6238883768ERROR:#DIV/0!2.37406093121001.071.21.552.173.6310.91.1100360071.07504440860.6550780151-1.5698151642-23.0590782213ERROR:#DIV/0!1.1100360071.93598406042.09371367452.44463213092.6700515102-1.9148080532ERROR:#DIV/0!2.67005151021.90193032832.05171407162.37084904472.4952423521-2.7865835948ERROR:#DIV/0!2.4952423521Chng trnh PasCal s gip gii nhanh phn tnh ton qu trnh sy thc.1201.111.261.632.283.8211.51.19003360651.14004560880.6750828161-1.6248067625-23.954041014ERROR:#DIV/0!1.19003360651.96091845642.18624647652.5747633392.8077811243-1.9562911908ERROR:#DIV/0!2.80778112431.92913497312.14311174922.49643975522.6250260954-2.8632555888ERROR:#DIV/0!2.62502609541401.191.331.712.44.01121.25003360651.19004800930.7100864168-1.6897983609-25.2439906043ERROR:#DIV/0!1.25003360652.02091845642.29131208062.6923617452.9355107384-2.0899135062ERROR:#DIV/0!2.93551073841.98913497312.24590710442.6106327882.7448098386-3.0445531292ERROR:#DIV/0!2.74480983861601.251.391.792.514.1912.61.3100360071.25504920950.7300912177-1.7447899593-26.4889413947ERROR:#DIV/0!1.3100360072.13598406042.38384488262.82249295313.0732403525-2.2060686236ERROR:#DIV/0!3.07324035252.10193032832.3373047822.73622349842.8745935819-3.2072483471ERROR:#DIV/0!2.8745935819TI LIU THAM KHO1801.311.461.872.634.3813.21.3700360071.30005281020.7900936182-1.8347803574-27.3839041875ERROR:#DIV/0!1.3700360072.19598406042.51144328862.93755855713.2035027686-2.2475517612ERROR:#DIV/0!3.20350276862.16193032832.46149781492.84901885372.9957750028-3.2839203412ERROR:#DIV/0!2.99577500282001.371.521.962.744.5713.71.42003840741.35005521070.8100984191-1.8897719558-28.628854978ERROR:#DIV/0!1.42003840742.30104966442.61650889263.06768976513.3412323827-2.3637068786ERROR:#DIV/0!3.34123238272.26472568362.56429317012.97460956413.1255587461-3.4466155591ERROR:#DIV/0!3.12555874611. Nguyn Bin, Cc qu trnh thit b trong cng ngh ho cht v thc phm, tp 1,2,4.2201.421.582.042.864.7614.31.48004080791.41505641090.8451020198-1.9797623539-29.8738057684ERROR:#DIV/0!1.48004080792.41611526852.70904169473.18528817123.4714947988-2.4798619961ERROR:#DIV/0!3.47149479882.37752103882.65569084773.08880259693.246740167-3.6093107771ERROR:#DIV/0!3.2467401672. Phm Xun Ton, Cc qu trnh thit b trong cng ngh ho cht v thc phm, tp 3.2401.481.652.122.974.9514.91.54004080791.46505881140.8651068207-2.0597527521-30.7237697614ERROR:#DIV/0!1.54004080792.47611526852.81410729873.31541937923.6117572149-2.5038779356ERROR:#DIV/0!3.61175721492.43752103882.75848620293.21439330743.3779215879-3.6673804488ERROR:#DIV/0!3.37792158793. Trn Xoa, Nguyn Trng Khung, H L Vin, S tay qu trnh v thit b cng ngh ho cht, tp 1.2601.541.712.23.095.1515.41.60004320841.53006001160.9001104214-2.1497431502-31.9687205519ERROR:#DIV/0!1.60004320842.59118087252.90664010073.43301778533.742019631-2.6200330531ERROR:#DIV/0!3.7420196312.5503163942.84988388053.32858634023.4991030087-3.8300756667ERROR:#DIV/0!3.49910300874. Trn Xoa, Nguyn Trng Khung, Phm Xun Ton, S tay qu trnh v thit b cng ngh ho cht, tp 2.2801.61.782.283.25.34161.66004320841.57506361230.9451140221-2.2047347486-33.2136713424ERROR:#DIV/0!1.66004320842.65118087253.03423850673.56061619133.8797492451-2.7361881705ERROR:#DIV/0!3.87974924512.6103163942.97407691343.4527793733.628886752-3.9927708847ERROR:#DIV/0!3.6288867525. B mn my ho cht, Tnh ton thit k thit b my ho cht.3001.661.842.373.325.5316.61.94005281021.85007441441.1151332258-2.6096879395-39.0434384972ERROR:#DIV/0!1.94005281023.15144328863.55703372494.17114102364.5485285236-3.2248245798ERROR:#DIV/0!4.54852852363.10149781493.48665601194.04514221484.2533961788-4.7016214281ERROR:#DIV/0!4.25339617886. H L Vin, My ho cht.4001.942.162.783.896.4919.52.23006001162.12508521651.2701536298-2.9796423306-44.5232176544ERROR:#DIV/0!2.23006001163.60664010074.0798289434.79419865785.2247750002-3.6387890092ERROR:#DIV/0!5.22477500023.54988388053.99923511044.64890273424.8865079281-5.3244487477ERROR:#DIV/0!4.88650792817. Trn Vn Ph, Tnh ton v thit k h thng sy.5002.232.483.194.477.4522.32.5200672132.40009601861.4251740337-3.3495967218-50.3529848092ERROR:#DIV/0!2.5200672134.06183691284.60262416115.4172562925.9010214767-4.1274254185ERROR:#DIV/0!5.90102147673.99826994624.51181420895.25266325365.5196196773-6.0332992912ERROR:#DIV/0!5.51961967738. H L Vin, Tnh ton thit k cc chi tit thit b ho cht v du kh.6002.522.83.65.058.4125.22.81007441442.67010802091.6201920372-3.7545499127-56.1827519641ERROR:#DIV/0!2.81007441444.51703372495.14795218136.02524832226.5698007553-4.6160618278ERROR:#DIV/0!6.56980075534.44665601195.0457909855.84362841786.1441291041-6.7421498347ERROR:#DIV/0!6.14412910419. Trn Vn Ph, Hng dn thit k thit b sy.7002.813.124.025.629.3728.13.10008401632.96011762281.7752124412-4.0495079046-62.1475155182ERROR:#DIV/0!3.10008401635.0272961415.65821459746.64830595657.2384488257-5.157099831ERROR:#DIV/0!7.23844882574.94783743285.54697240596.44738893716.7730478205-7.5068073453ERROR:#DIV/0!6.773047820510. Hong Vn Chc, K thut sy.8003.13.454.436.210.3310.78900384070.79700156030.77450336070.77450276060.77450192050.64400000020.789003840727.53280201416.26640100722.53280201422.53280201422.5328020145.06560402822.53280201426.39767761115.698838805521.39767761121.39767761121.3976776112.795355221921.39767761111. Trnh Cht, L Vn Uyn, Tnh ton thit k h thng dn ng c kh.-100510203040506070809099.410012014016018020022024026028030040050060070080012. Nguyn Trng Hip, Chi tit my, tp 1,2.0.760000240.789000240.8040.818000240.84700048010.87600096020.90500168030.93400264050.96300456090.99200672131.02001200231.05001920371.08002880561.07003120611.1100360071.19003360651.25003360651.3100360071.3700360071.42003840741.48004080791.54004080791.60004320841.66004320841.94005281022.23006001162.5200672132.81007441443.10008401630.789003840713. H L Vin, C s thit k my ho cht.2.529000242.58897143452.47002856552.52901440282.52902832552.52904200812.52905545082.5291082612.52912122352.47628661562.58038647492.6781997303-7.26130173942.07015122933.02997839582.57003360652.57008641682.5700360072.37008401632.56008401632.56004080792.56008161582.56004320842.5000720142.5200672132.5200672132.5200672132.5200648126ERROR:#DIV/0!ERROR:#DIV/0!14. L nh Thao, Cc qu trnh v my gia cng c hc trong cng nghip ho cht, tp 2.FFFFFFFFFFFFFFFFFFFFFFFFFFTFFF15. Hong Vn chc, Thit k h thng thit b sy.0.76125328020.79225328020.80750656040.82350656040.85801312080.89702624160.94354592281.00207872481.08266401011.19532802011.38812323831.74397609062.5397890942.5397890942.67005151022.80778112432.93551073843.07324035253.20350276863.34123238273.47149479883.61175721493.7420196313.87974924514.54852852365.22477500025.90102147676.56980075537.238448825722.53280201416. Trn Minh T, Sc bn vt liu 1.FFFFFFFFFFTFFFFFFFFFFFFFFFFFFF17. L Cung, Nguyn l my.0.76113976780.79213976780.80727953550.82327953550.8575590710.89611814210.94195674870.99935442631.07698838811.18397677611.36655587461.69289549252.37406093122.37406093122.49524235212.62502609542.74480983862.87459358192.99577500283.12555874613.2467401673.37792158793.49910300873.6288867524.25339617884.88650792815.51961967736.14412910416.773047820521.397677611FFFFFFFFFFTFFFFFFFFFFFFFFFFFFFA. TNH TON CNG NGHI. Tnh kch thc c bn ca thng sy- Cng bc hi m:A=50 m ni suy:0.0024004655* Cn bng vt cht:Kt qu lu lng th tch ring:2.520067213 , - Khi lng vt liu vo, ra TBS.kg/h =200Tn/Ngy=8333.3333333333kg/hNhit ni suy:600 , - m tng i ca VLS vo, ra TBS.% =22%5%W - Lng m bc hi trong 1h.kg/h m ni suy:55.065604028 - Khi lng VLS kh tuyt i. kg/hKt qu lu lng th tch ring:1.3881232383Nhit ni suy:81=1816.2393162393kg/h(7.27-289-QTTB4) m ni suy:52.7953552219Kt qu lu lng th tch ring:1.3665558746=7916.6666666667kg/h(7.22-289-QTTB4)Nhit ni suy:81=10149.5726495727kg/h(7.21-289-QTTB4)* Cc kch thc c bn ca thng sy:- Th tch thng sy:=36.3247863248(VII.50-221-STT2)Nhit ni suy:600Nhit dung:0.527Bng I.149, I.150 - 168,169 - STT1Nhit ni suy:81Nhit dung:0.9789Nhit ni suy:23.4Nhit dung:0.99883Nhit 020406080100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680700720740- Chn ng knh thng sy:2.4m(XIII.6-359-STT2)Nhit dung ring1.0060.9990.9981.0011.0040.5020.4850.4780.4730.4720.4720.430.4740.4760.4780.4810.4840.4860.4890.4920.4950.4980.5010.5040.5070.510.5140.5170.5210.5240.5270.530.5340.5370.540.5440.5470.5510.7960.971.0821.082-12.0480.0770.3170.3630.4510.472-0.3681.2660.510.510.5260.5260.5120.5250.5250.5250.5250.5250.5250.5250.5250.530.5260.5290.5270.5270.5270.5260.5280.5280.5240.5290.523ERROR:#DIV/0!- Chiu di thng sy:=8.0336133945m(73-TTTKTBMHC)FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFTFFFFFFF0.977650.995951.004151.004150.97890.518150.498650.492750.476950.4720.72190.12420.45810.45810.448150.448150.46010.447150.447150.447150.447150.447150.447150.447150.447150.42620.448150.42520.449150.449150.449150.42220.450150.450150.42020.451150.4192ERROR:#DIV/0!Chn14m(Nu thng c lt gch bn trong th chn sao cho tho mn iu kin # )FFFFTFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0.997810.998830.995510.995512.424660.567110.518810.507150.479830.4720.84286-0.002520.452340.452340.439510.439510.454340.438510.438510.438510.438510.438510.438510.438510.438510.414680.439510.413680.440510.440510.440510.410680.441510.441510.408680.442510.40768ERROR:#DIV/0!Kim tra li:=5.8333333333 = [3,5-7] --> ng knh thng quay chn l hp lFTFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFDo nhit ca khi l vo TBS cao nn trnh cho khi tip xc trc tip vi thng th ta lt mt lp gch bn trong thng vi b dy:Bng I.179 - 204 - STT1230mm =0.23mNhit 050100150200280[0;400][0;800][0;1000][0;1400]Nhit ni suy:600Nhit dung ring1.00481.00481.0091.01741.02581.04251.02281.03871.04671.0626Nhit dung:1.0387ng knh trong ca lp lt:1.94m1.00481.0511.0931.0931.1093ERROR:#DIV/0!ng knh ngoi ca lp lt bng ng knh trong ca thng:2.4mFFFFFFTh tch ca lp lt:21.940436Dy 11.251.522.5345681012162025Modun:18.3412032468Quy chun:20FFFFFFFFFFFTFF- Tit din thng sy: =2.954426mDy 21.1251.3751.752.252.753.54.55.57911141822Modun:18.3412032468Quy chun:22- Th tch thc ca thng sy: =41.361964(Tho mn iu kin ln hn th tch thng tnh theo cng bc hi m)(#)FFFFFFFFFFFFTF- Chn chiu dy thng sy:S = (0,007 --> 0,011) =0.0168---------->0.0264m(10.15-83-TKMHC)12345681012141618202225283032364045505560B dy:19.7Quy chun:20Chn S =0.0196mFFFFFFFFFFFFTFFFFFFFFFFF cho TBS hot ng khong 20 nm, ta b sung thm h s b sung do n mn, mi mn, dung sai: c = c1 + c2 + c3(XIII.17-363-STT2)c1: H s b sung do n mn, chn c1 =0mm(C lt gch bn trong th chn c1 v c2 = 0)c2: H s b sung do mi mn, chn c2 =0mmc3: H s b sung do dung sai, chn c3 =0.1mm--->c = 0.1mm=0.0001mmVy chiu dy thng quay S = 0.0196+0.0001=0.0197mQuy chun: S =0.02m=20mmII. Tnh thi gian sy(pht)VII.53-123-STT2)- H s in y vt liu, theo VII.5-123-STT2, chn =0.17- Khi lng ring xp ca VLS, =1380(I.1-8-STT1) , - m tng i ca VLS vo, ra TBS.%A - Cng bc hi m.55.3276300578(pht)III. Tnh s vng quay ca thng sy Chn s vng quay ca thng sy:n =1 (vng/pht)Mt khc ta c:(VII.52-122-STT2)n = (vng/pht)m: H s ph thuc vo cu to cnh o trn. Chn cnh o trn l cnh nng thm = 0.5(VII.4-122-STT2)k: H s ph thuc vo chiu chuyn ng ca TNS v VLS. Sy xui chiu, chnk = 0.7(VII.4-122-STT2) : Chiu di cnh o trn bng chiu di thng sy.(m) : Thi gian lu ca vt liu trong thng.(pht) : ng knh trong ca thng sy.(m) : Gc nghing ca thng quay. = 0,5 - 6(171-GTMHC)Chn = 2--> =58.4953625261(pht)Thi gian lu ln hn thi gian sy ---> Thi gian sy l hp l.IV. Tnh ton qu trnh chy ca nhin liu1. Cc cng thc tnh ton* p sut hi bo ho:exp(12 - )(bar)(2.31-31-TTTKHTS)t: nhit ca hi bo hoC* Hm m ca khng kh:x = 0,622(kg m/kg kkk)(7.3-273-QTTB4)P: p sut chung ca hn hp kh. TBS lm vic p sut kh quyn nnP = Pa =0.981(bar) : m tng i ca khng kh : p sut hi bo ho(bar) = (bar)* Nhit lng ring:I = 1000t + (2493 + 1,97t). 10 .x(J/kg kkk)(7.5-273-QTTB4)t: nhit ca hi bo hoCx: hm m ca khng khx = t = C* Th tch ring:V = (7.7-275-QTTB4)R: Hng s kh. Vi khng kh, R = 287 (J/kg C)T: nhit khng kh, T = t + 273 (K)P, : p sut chung v p sut hi bo ho (Pa)V = vi P, o bng bar2. Cc thng s ca khng kh ngoi triChn v tr t TBS H Ni. Theo VII.1-97-STT2 ta c:- Nhit khng kh trung bnh nm:t =23.4 C- m trung bnh nm: = 83%- p sut hi bo ho:0.0286664506(bar)- Hm m:0.0154609652- Nhit lng ring:62656.9059005037(J/kg kkk)- Th tch ring:0.88869819893. Qu trnh chy ca nhin liuS dng nhin liu to khi l l than , c thnh phn nh bng 3.1Bng 3.1. Thnh phn lm vic ca than .Nguyn tCHONSTrA% KL76.41.51.30.81.713.35- Nhit tr cao ca nhin liu:[339C* + 1256H* - 109(O* - S*)]. 10(J/kg)C*, H*, O*, S* : Thnh phn C, H, O, S ch lm vic ca than(%KL)27827200(J/kg)=27827.2(kJ/kg)- Nhit tr thp ca nhin liu:[339C* + 1256H* - 109(O* - S*) - 25,1. ]. 10(J/kg)C*, H*, O*, S* : Thnh phn C, H, O, S ch lm vic ca thanKhi lng nc to thnh khi t nhin liu.(kg)9H* + A*H*, A* : Thnh phn H, m trong than nhin liu ch lm vic(%KL)-->[339C* + 1256H* - 109(O* - S*)]. 1025100(9H* + A*) =25100(9H* + A*)(J/kg)27362850(J/kg)=27362.85(kJ/kg)- Lng khng kh kh cn thit cho qu trnh chy:0,115C* + 0,346H* + 0,043(S* - O*)(kg kkk/kg nl)9.3222(kg kkk/kg nl)Trong thc t, lng khng kh kh cn thit t chy ht nhin liu phi ln hn lng khng kh kh l thuyt.- Lng khng kh kh thc t cho qu trnh chy:L = (3.14-56-TTTKHTS): h s d khng kh ca bung t. (1,2 - 1,3)Chn 1.3L = 12.11886(kg kkk/kg nl)Khi l sau khi ra khi bung t c nhit ln hn so vi yu cu nn cn phi c qu trnh ho trn khi l vi khng kh ngoi tri t c nhit cn thit trc khi a vo TBS.- H s d khng kh: = (3.15-57-TTTKHTS): Nhit tr cao ca nhin liu.(J/kg): Hiu sut ca bung t.Chn 0.7: Nhit dung ca nhin liu.(J/kg C)1300(J/kg C): Nhit ca nhin liu trc khi vo TBS, ly bng nhit khng kh ngoi triC H*, A* : Thnh phn H, m trong than nhin liu ch lm vic(phn KL) ,: Nhit hm ca hi nc trong khi l sau bung t v ca khng kh ngoi tri.(J/kg)(2493 + 1,97 ). 10(J/kg) : nhit ca hi nc sau khi ra khi bung t, ly bng nhit khi l trc khi vo TBS.600 C3675000(J/kg)(2493 + 1,97 ). 10(J/kg): Nhit ca khng kh ngoi tri.C2539098(J/kg): Nhit dung ca khi kh, ly bng nhit dung ca khng kh kh nhit 1038.7(J/kg C)(Nhit dung t ng ni suy theo nhit . Nu mun vn c th sa) = 3.3098675537* Cc thng s ca khi l sau bung t:- Lng hi nc:(9H* + A*) + (kg m/kg nl)(3.20-58-TTTKHTS)0.3723692731(kg m/kg nl)- Khi lng khi kh:( + 1) - (Tr* + 9H* + A*)(kg khi kh/kg nl)(3.23-59-TTTKHTS)12.80086(kg khi kh/kg nl)- Hm m ca khi l:(kg m/kg khi kh)0.029089395(kg m/kg khi kh)- Nhit hm ca khi l:(J/kg khi kh)(3.31-60-TTTKHTS)1583392.85568637(J/kg khi kh)- Nhit ca khi l ra khi bung t:( C)1428.9835102676( C)- p sut hi bo ho:exp(12 - )(bar)14486.5996601552(bar)- m tng i:0.3025496233x10- Th tch ring:5.2121688255* Cc thng s ca khi l sau bung ho trn:- Lng hi nc:(9H* + A*) + (kg m/kg nl)(3.20-58-TTTKHTS)0.6620519059(kg m/kg nl)- Khi lng khi kh:( + 1) - (Tr* + 9H* + A*)(kg khi kh/kg nl)(3.23-59-TTTKHTS)31.5372473089(kg khi kh/kg nl)- Hm m ca khi l:(kg m/kg khi kh)0.0209926979(kg m/kg khi kh)- Nhit hm ca khi l:(J/kg khi kh)(3.31-60-TTTKHTS)679918.38720465(J/kg khi kh)- Nhit ca khi l ra khi bung ho trn:( C)602.6602078291( C)Sai s gia nhit ca khi l tnh c vi nhit ca khi l chn trc:t% =0.441410897%----> Sai s < 5%. Nhit ca khi l trc khi vo TBS l hp l- p sut hi bo ho:exp(12 - )(bar)1334.2455282545(bar)- m tng i:0.2400465491x10- Th tch ring:2.6482815831V. Tnh ton qu trnh sy l thuyt Khi l va lm nhim v cung cp nhit lng, va thi m ra mi trng. Qu trnh sy l thuyt l qu trnh sy khng c bt k tn tht nhit no.(Tham kho thm ti 3.4.1-167-TTTKHTS)- Nhit hm ca khi l:679918.38720465(J/kg khi kh)- Nhit ca khi l ra khi TBS:81( C)- p sut hi bo ho:exp(12 - )(bar)0.4859224862(bar)- Nhit dung ring dn xut ca khi l trc qu trnh sy:(7.10-130-TTTKHTS): Nhit dung ring ca khng kh kh1.0387 kJ/kg C(Nhit dung t ng ni suy theo nhit . Nu mun vn c th sa): Nhit dung ring ca hi nc trc khi vo TBS2.2064436 kJ/kg C(Nhit dung t ng ni suy theo nhit . Nu mun vn c th sa): Hm m ca khi l trc khi vo TBS0.0209926979(kg m/kg khi kh)1.085019204(kJ/kg khi kh)- Hm m ca khi l:(kg m/kg khi kh)(7.94-159-TTTKHTS) ,: Nhit ca khi l vo, ra TBS: Nhit hm ca hi nc sau khi ra khi thng sy(kJ/kg)(2493 + 1,97 ). 10(J/kg)(273-QTTB4)2652570(J/kg)=2652.57(kJ/kg)0.2332868002(kg m/kg khi kh)- m tng i:0.5506560403- Th tch ring:1.4240903259- Lng khi kh tiu tn ring cho 1kg m bc hi:(kg khi kh/kg m.h)(7.30-290-QTTB4)4.7104464481(kg khi kh/kg m.h)- Lng khi kh vo TBS:(kg/h)8555.2980361638(kg/h)- Nhit lng tiu tn ring:(7.40-293-QTTB4)2907577.15218686(J/kg m)=2907.5771521869(kJ/kg m)- Nhit lng cn cung cp cho qu trnh sy l thuyt:5280855938.80093(J/h)=5280855.93880093(kJ/h)- Lu lng th tch ring ca khi l khi vo TBS: Vi600( C) v 0.2400465491x10ni suy ta c:2.520067213(PL5-349-TTTKHTS)(Lu lng th tch ring t ng ni suy theo nhit v m. Nu mun vn c th sa)- Lu lng th tch ring ca khi l khi ra TBS: Vi81( C) v 0.5506560403ni suy ta c:1.3881232383(PL5-349-TTTKHTS)(Lu lng th tch ring t ng ni suy theo nhit v m. Nu mun vn c th sa)- Lu lng th tch ca khi l khi vo TBS:21559.9260786683- Lu lng th tch ca khi l khi ra TBS:11875.8080142924- Lu lng th tch trung bnh ca khi l trong thng sy: =16717.8670464804=4.6438519574- Thit din t do ca thng sy:(1 - )2.45217358- Tc trung bnh ca khi l trong thng sy:: Lu lng th tch trung bnh ca khi l trong TBS: Thit din t do ca thng sy1.8937696724VI. Tnh ton qu trnh sy thc1. Tnh cc tn tht nhit.TBS thng quay khng s dng nhit b sung v khng c thit b vn chuyn nn:- Nhit b sung:- Nhit do thit b vn chuyn mang ra, vo:Trong qu trnh sy thc t, ngoi tn tht nhit do khi l mang ra khi thng sy cn c tn tht nhit do VLS mang ra ( ) v tn tht nhit ra mi trng ( ).* Tn tht nhit do VLS mang ra ngoi.- Nhit dung ring ca VLS ra khi thng sy:J/kg C(7.40-141-TTTKHTS): Nhit dung ring ca vt liu kh(I.144-162-STT1)920J/kg C: m tng i ca VLS ra khi TBS: Nhit dung ring ca m ra khi TBS nhit 81 C4098.45852 J/kg C(I.147-165-SST1)(Nhit dung t ng ni suy theo nhit . Nu mun vn c th sa)1078.922926 J/kg C- Tn tht nhit do VLS mang ra:kJ/h(292-QTTB4): Khi lng VLS vo TBSkg/h: Nhit dung ring ca VLS ra khi thng sy J/kg C ,: Nhit VLS trc v sau khi vo, ra khi thng quay. C23.4 C(ly bng nhit khng kh ngoi tri)75 C(ly thp hn nhit khi l ra khi TBS t 5 - 10 C ) 463936858.18J/h- Tn tht nhit ring do VLS mang ra:J/kg m255438.176033224J/kg m=255.4381760332kJ/kg m* Tn tht nhit ra mi trng Hng dn s dng chng trnh PasCal tnh nhanh tn tht nhit ra mi trng:Chy PasCal v chn chng trnh 5 hoc 6. in kt qu ca tc khi l, b dy bo n v chnh lch nhit ca khi l vi mt trong thng sy vo cc gi s trong Excel.Kim tra li cc iu kin (cc dng ch ) trn Excel xem c tho mn hay khng. Tt c u tho mn l c. Nu khng cn xem li cc s liu trn.Cc chng trnh 2 v 3 dng kim tra li cc kt qu va tm c.Trong qu trnh sy thc t th tc ca khi l i vo TBS ln hn qu trnh sy l thuyt.- Gi s tc ca khi l i trong thng sy l:2m/s- ng knh trong ca lp lt:1.94m- B dy lp lt:0.23m- ng knh trong ca thng sy:2.4m- V thng sy lm bng thp 25, dy:0.02m- Chn vt liu bo n l bng thu tinh, gi s b dy ca lp bo n l:0.12m- Chn lp v bc ngoi cng thng sy lm bng tn, dy:0.001m, h s dn nhit 50W/m C- ng knh ngoi ca thng sy:m 2.682m =1.3824742268 < 2--> Qu trnh truyn nhit ra mi trng c th coi l truyn nhit qua tng phng.- Nhit trung bnh ca khi l i trong TBS: =340.5 C- Nhit trung bnh ca khng kh bn ngoi TBS:23.4 CKhi TBS lm vic th tai mt thi gian nht nh, mt trong ca thng sy tip xc vi khi l nhiu hnnn ta b qua qu trnh truyn nhit qua VLS n mt trong thng sy.- H s cp nhit t TNS n mt trong ca thng:6,15 + 4,17W/m C(7.46-144-TTTKHTS)14.49W/m C- Nhit mt trong cng ca thng sy: C- Gi s chnh lch nhit gia khi l v mt trong cng ca thng sy l:4.34 C336.16 C- Mt dng nhit trao i i lu trong thng sy:62.8866W/m (59-QTTB3)Mt khc:(59-QTTB3): H s dn nhit ca lp lt nhit lm vic0.085W/m C(32-TTTKCTTBHCDK): B dy ca lp lt.(m): Nhit mt trong cng ca thng sy C: Nhit mt tip xc ca v thng vi lp lt C =165.9962588235 C- Mt dng nhit truyn qua lp lt:62.8866W/m Mt khc:: H s dn nhit ca v thng nhit lm vic.50W/m C: B dy ca lp lt(m): Nhit mt tip xc ca v thng vi lp lt C: Nhit mt tip xc ca lp bo n vi v thng C =165.9711041835 C- Mt dng nhit truyn qua v thng:62.8866W/m Mt khc:: H s dn nhit ca lp bo n nhit lm vic.0.065W/m C: B dy ca lp bo n(m): Nhit mt tip xc ca lp bo n vi v thng C: Nhit mt tip xc ca lp bo n vi v bo v C =49.8727657219 CLp v bo v c chiu dy mng v h s dn nhit ln nn c th b qua qu trnh truyn nhit qua n.Do vy:49.8727657219 C- Chnh lch nhit gia mt ngoi v bo v vi khng kh bn ngoi TBS:26.4727657219 C- Nhit trung bnh ca khng kh gn mt ngoi ca thng sy:36.636382861 C* Tnh chun s Grashof:Gr = (V.39-13-STT2) g: Gia tc trng trng, g = 9,81 m/s l: Kch thc hnh hc c trngl = 2.4(m) : H s gin n th tch = 3.2295946321x10 : Chnh lch nhit gia mt ngoi v bo v vi khng kh bn ngoi TBS C: nht ng hc ca khng kh nhit 36.636382861 CNi suy t bng I. 255 - 318 - STT1 : =16.6370927547x10m /s( nht t ng ni suy theo nhit . Nu mun v c th thay i.)Gr = 4.1888536529x10* Tnh chun s Nusselt:Nu = 0,47Gr =212.6285878263(4.57-206-QTTB1)Mt khc:Nu = : H s cp nhit t mt ngoi v bo v ra mi trngW/m Cl: Kch thc hnh hc c trngl = 2.4(m) : H s dn nhit ca khng kh nhit 36.636382861W/m CNi suy t bng I. 255 - 318 - STT1 :2.7297274457x10W/m C(H s dn nhit t ng ni suy theo nhit . Nu mun v c th thay i.) =2.4184087164W/m C- Dng nhit truyn t mt ngoi v bo v ra mi trng:64.0219673696W/m - Sai s gia dng nhit truyn n mt trong thng sy v dng nhit truyn t mt ngoi v bo v ra mi trng:q% =: Gi tr ln hn gia v: Gi tr nh hn gia vq% =1.773402812 Sai s chp nhn c. - m bo an ton th nhit mt ngoi v bo v phi xp x hoc nh hn:50 C49.8727657219 C ----> Nhit t yu cu v an ton- Dng nhit truyn qua cc lp v TBS:q =63.4542836848W/m - B mt trao i nhit:F = (220-TTTKHTS): ng knh trung bnh ca TBS(m)=2.311(m): Chiu di thng sy(m)F = 109.97649197 m- Nhit tn tht ra mi trng:3,6 q F(kJ/h)(220-TTTKHTS)25122.5262724486(kJ/h)- Tn tht nhit ring ra mi trng:13.8321674065(kJ/kg m)* Tng nhit tn tht:q = 269.2703434397(kJ/kg m)* Lng nhit b sung thc t: = q(7.38-292QTTB4): Nhit b sung: Nhit ca VLS trc khi vo TBS, ly bng nhit khng kh ngoi tri23.4 C: Nhit dung ring ca hi nc sau khi ra khi TBS4.09845852 kJ/kg C(Nhit dung t ng ni suy theo nhit . Nu mun v c th thay i.) =-173.3664140717(kJ/kg m)2. Cc thng s ca khi l sau qu trnh sy thc: xc nh cc thng s ca khi l sau qu trnh sy thc ta c th tnh bng th I - x hoc dng cng thc gii tch tnh. y ta s s dng phng php gii tch tnhton cc thng s ca khi l.- Hm m ca khi l sau qu trnh sy thc:(kg m/kg khi kh)(7.94-159-TTTKHTS) ,: Nhit ca khi l vo, ra TBS: Nhit hm ca hi nc sau khi ra khi thng sy(kJ/kg)(2493 + 1,97t). 10(J/kg)(273-QTTB4)2652570(J/kg)=2652.57(kJ/kg)0.2202629165(kg m/kg khi kh)- Nhit hm ca khi l:(kJ/kg khi kh)(7.33-138-TTTKHTS): Nhit dung ring ca khng kh kh1.0387 kJ/kg C(Nhit dung t ng ni suy theo nhit . Nu mun v c th thay i.) : Nhit ca khi l ra TBS: Hm m ca khi l sau qu trnh sy thc(kg m/kg khi kh): Nhit hm ca hi nc sau khi ra khi thng sy(kJ/kg)668.3975043496(kJ/kg khi kh)- m tng i ca khi l sau qu trnh sy thc:(bar): p sut hi bo ho ca khi l khi ra khi TBS0.4859224862(bar): Hm m ca khi l sau qu trnh sy thc(kg m/kg khi kh)0.5279535522- Lng khi l tiu tn ring:(7.35-139-TTTKHTS)5.0183113525(kg khi kh/kg m)- Lng khi l tiu tn:9114.4543795758(kg khi kh/h)- Lu lng th tch ring ca khi l khi vo TBS: Vi600( C) v 0.2400465491x10ni suy ta c:2.520067213(PL5-349-TTTKHTS)(Lu lng th tch ring t ng ni suy theo nhit v m. Nu mun vn c th sa)- Lu lng th tch ring ca khi l khi ra TBS: Vi81( C) v 0.5279535522ni suy ta c:1.3665558746(PL5-349-TTTKHTS)(Lu lng th tch ring t ng ni suy theo nhit v m. Nu mun vn c th sa)- Lu lng th tch ca khi l khi vo TBS:22969.0376466608- Lu lng th tch ca khi l khi ra TBS:12455.4111762582- Lu lng th tch trung bnh ca khi l trong thng sy: =17712.2244114595=4.9200623365- Tc trung bnh ca khi l trong thng sy:: Lu lng th tch trung bnh ca khi l trong TBS: Thit din t do ca thng sy2.0064086721- Sai lch gia tc khi l tnh c so vi tc khi l gi s ban u:0.3194101099 Sai s chp nhn c - Nhit lng tiu hao ring trong thng sy:3.15-21-HDTKTBS)3213.1613359506(kJ/kg m)- Nhit lng tiu tn trong thng sy:5835869.94777348kJ/h- Nhit lng hu ch lm bc hi 1 kg m:(2493 + 1,97 ). 10(J/kg m)(160-TTTKHTS)Ca : Nhit dung ring ca hi nc ngoi tri, Ca =4.181901444 kJ/kg C(Nhit dung t ng ni suy theo nhit . Nu mun v c th thay i.)2635430.65039704(J/kg m)- Nhit dung ring dn xut ca khng kh ngoi tri:(7.10-130-TTTKHTS): Nhit dung ring ca khng kh kh1.0387 kJ/kg C(Nhit dung t ng ni suy theo nhit . Nu mun v c th thay i.): Nhit dung ring ca hi nc ngoi tri4.181901444 kJ/kg C(Nhit dung t ng ni suy theo nhit . Nu mun v c th thay i.): Hm m ca khng kh ngoi tri0.0154609652(kg m/kg khi kh)1.1033562328(kJ/kg khi kh)- Tn tht nhit do TNS mang i:(kJ/kg m)(160-TTTKHTS)318.9303422839(kJ/kg m)- Tng nhit tn tht v nhit hu ch:3223.6313361207(kJ/kg m)Trn l thuyt th nhit lng tiu hao phi bng tng nhit tn tht v nhit hu ch. y do tnh ton lm trn s liu m kt qu ny c s sai khc.- Sai s gia nhit lng tiu hao vi tng nhit tn tht v nhit hu ch:0.3247890059% Kt qu tnh ton qu trnh sy thc l hp l.- Hiu sut ca TBS: =82.0198668803%- Hiu sut ca HTS:57.4139068162%VII. Tnh ton lng nhin liu tiu hao - Lng nhin liu tiu tn:B = (kg nhin liu/h)(3.16-21-HDTKTBS): Nhit lng tiu tn trong TBS(kJ/h): Nhit tr cao ca nhin liu(kJ/kg nhin liu): Hiu sut bung tB =299.5974107437(kg nhin liu/h)VIII. Tnh tr lc v chn qut - Chn ng knh ht t st:d =3mm =0.003m- nht ca khi l nhit lm vic trung bnh:Vi 340.5 CNi suy t bng I. 255 - 318 - STT1 : =54.1053x10m /s- Chun s Reynolds: : Khi lng ring ca khi l nhit lm vic trung bnh. =1.29kg/m w: Tc khi l trong qu trnh sy thc. w = 2.0064086721m/sRe = 143.5127715991- H s thu ng:(10.20 - 213 - TTTKHST)a = 17.611797523- Khi lng ring dn xut ca khi VLS trong thng:(10.23 - 213 - TTTKHST)12.660963976kg/m- H s tr lc:(10.22 - 213 - TTTKHST): Khi lng ring xp ca VLS.1380kg/m =0.9908253884- H s c trng cho cht ca lp ht:(10.21 - 213 - TTTKHST)0.009345304- Tr lc ca dng khi i qua lp VLS:(10.19 - 213 - TTTKHST) g : Gia tc trng trng g =9.81m/s203.2981370427mm H Op = mm H O: Tr lc ca thng sy,203.2981370427mm H O: Tr lc ca Cyclon, theo kinh nghim, chn 20mm H O: Tr lc ca bung t, theo kinh nghim, chn 3mm H O: Tr lc cc b v tr lc trn ng ng, ly thm 5% tng 3 tr lc trn.p = 237.6130438948mm H O- Tng tr lc quy v iu kin tiu chun:p (257 - KTS) p: Tr lc ca HTSmm H O t2: Nhit khi l ra khi TBS81( C) P: p sut khng kh ni t qut P =0.981(bar) =735.80886mm Hg: Khi lng ring ca khng kh nhit ra ca khi l.1,293 (273,2/( t2 + 273)) (3.89 - 15 - STT1)0.4859224862(bar) =364.4710200284mm Hg0.7850771311: Khi lng ring ca khng kh iu kin tiu chun.1.185210.8402140906mm H O=2068.3425002283 Vi chiu cao ct p2068.3425002283v lu lng trung bnh ca dng kh17712.2244114595ta chn c qutN 8(263 - KTS)- S vng quay: = 138Rad/s- Hiu sut: = 76%- Tc vng ca bnh gung:58.7m/sB. TNH TON C KH I. Tnh ton cng sut ng c truyn chuyn ng cho thng sy- Cng sut cn thit quay thng: N =0,13. 10 . (kW)(VII.54 - 123 - STT2): ng knh trong ca thng sy(m): Chiu di thng sy(m) a: H s ph thuc vo dng cnh o trnVi cnh nng, h s in y vt liu =0.17(VII.5 - 123 - STT2)chn a =0.058 n: S vng quay ca thng sy(vng/pht) : Khi lng ring xp ca vt liu(kg/m )N = 20.137807872 (kW)Thc t, cng sut lm quay thng ln hn khi tnh ton do hiu sut ca cc b truyn, do vy ta ly d cng sut thm 20%N' = 24.5681256038 (kW)Theo P1.3 - 238 - TTTKHTCK, chn ng c 4A225M8Y3.- Cng sut ng c:30kW- Tc quay:735vng/pht- Hiu sut:90%II. La chn hp gim tc v b truyn ng ngoi 1. Tnh ton, la chn hp gim tc- T s truyn ng chung ca h thng: i = =735T s truyn ng ln, chn hp gim tc bnh rng tr 3 cp vi t s truyn100- T s truyn t u ra hp gim tc sang bnh rng vng:7.35- Hiu sut ca cc b truyn:(2.3 - 19 - TTTKHTDDCK)B truyn bnh rng tr kn:0.96(C 3 cp bnh rng tr kn)B truyn bnh rng tr h:0.93(C 1 cp bnh rng tr h)Mt cp ln:0.99(C 4 cp ln)Hiu sut b truyn:0.7903827005 Hiu sut hp gim tc:0.8498738715- Cng sut trn trc ng c:25.4785534391 (kW) ---> ng c chn lm quay thng l hp l.- S vng quay trn cc trc:Trc ng c:735vng/phtu ra hp gim tc:=7.35vng/phtTrn thng quay:=1vng/pht- Cng sut trn cc trc: Trc ng c:29.7kWu ra hp gim tc:25.2412539836kWTrn thng quay:23.4743662048kW- Momen xon trn cc trc:Trc ng c:9,55 . 10=385897.959183673N.mmu ra hp gim tc:9,55 . 10=32796459.2576674N.mmTrn thng quay:9,55 . 10=224180197.255786N.mm2. Tnh b truyn ng ngoiB truyn ny c chc nng truyn ng t tang dn ng n bnh rng ln gn vo thng. y l s truyn ng gia 2 trc song song, tc quay chm, do ta chn b truyn bnh rng tr rng thng, n khp ngoi, truyn ng h.- Cc thng s c hc ca bnh rng ln:(6.1 - 92 - TTTKHTDDCK)Vt liu: Thp 40X ti ci thin. rn :HB = 240Gii hn bn ko:600Gii hn bn chy340 trnh dnh b mt lm vic ca rng, ly rn ca bnh rng nh ln hn bnh rng ln 10-15HB, chn mc thp bnh nh khc bnh ln.- Cc thng s c hc ca bnh rng nh:(6.1 - 92 - TTTKHTDDK)Vt liu: Thp 45X ti ci thin. rn :HB = 250Gii hn bn ko:750Gii hn bn chy450* Xc nh ng sut tip xc cho php:Thi gian hot ng ca thit b chn :20nmMi nm thit b hot ng:300ngyMi ngy hot ng:15gi- Tng thi gian lm vic:t =90000gi- S ln n khp ca rng trong mi vng quay:C =1(Do ch c 2 bnh rng n khp vi nhau)- S chu k chu ti tng ng ca bnh ln:60. C . (10.68 - 176 - CTM)5.4x10Bnh ln bng thp c HB =240. Theo cng thc Tr.175 - CTM, ta tm c s chu k c s ca bnh ln:30. HB = 15.4749136675x10- H s tui th ca bnh ln:=1.1918064894(Nu th ly )- S chu k chu ti tng ng ca bnh nh ln hn ca bnh ln mt gi tr bng t s truyn:39.69x10Bnh nh bng thp c HB =250. Theo cng thc Tr.175 - CTM, ta tm c s chu k c s ca bnh nh:30. HB =17.0677894034x10Do nn1(Nu th tnh nh ca bnh ln)- Gii hn bn mi tip xc ng vi chu k chu ti:(10.66 - 175 - CTM)Bnh ln:: Gii hn bn mi tip xc. Theo bng 10.7 - 175 - CTM ta c:2HB + 70 =550MPa655.4935691707MPaBnh nh:: Gii hn bn mi tip xc. Theo bng 10.7 - 175 - CTM ta c:2HB + 70 =570MPa570MPa- ng sut tip xc cho php ca mi bnh rng:(10.65 - 174 - CTM): H s an ton, ly bng1.1: Cc h s khc, Ly tch ca chng bng1Bnh ln:595.9032447006MPaBnh nh:518.1818181818MPang sut tip xc cho php tnh b truyn bnh rng:Min( , )518.1818181818MPa* Xc nh ng sut un cho php:- S chu k chu ti tng ng ca bnh ln:60. C . (10.68 - 176 - CTM)5.4x10Bnh ln bng thp c HB =240. Theo cng thc Tr.175 - CTM, ta tm c s chu k c s ca bnh ln:30. HB =15.4749136675x10- H s tui th ca bnh ln:=1.1918064894(Nu th ly )- S chu k chu ti tng ng ca bnh nh ln hn ca bnh ln mt gi tr bng t s truyn:39.69x10Bnh nh bng thp c HB =250. Theo bng 10.8 - 175 - CTM, ta tm c s chu k c s ca bnh nh:30. HB =17.0677894034x10Do nn1(Nu th tnh nh ca bnh ln)- Gii hn bn mi un ng vi chu k chu ti:(10.74 - 178 - CTM)Bnh ln:: Gii hn bn mi un. Theo bng 10.6 - 174 - CTM ta c:1,8HB=432MPa: H s gim gii hn bn mi un. B truyn quay mt chiu th1514.8604034213MPaBnh nh:: Gii hn bn mi un. Theo bng 10.6 - 174 - CTM ta c:1,8HB=450MPa450MPa- ng sut un cho php ca mi bnh rng:(10.73 - 177 - CTM): H s an ton, ly bng1.75: Cc h s khc, Ly tch ca chng bng1Bnh ln:294.2059448122MPaBnh nh:257.1428571429MPang sut un cho php tnh b truyn bnh rng:Min( , )257.1428571429MPa* Tnh s b ng knh vnh ln bnh nh:(10.27 - 155 - CTM): Momen xon trn bnh dn nh.(N.mm): H s chiu rng vnh rng. : H s chiu rng bnh rng. Bnh rng t khng i xng, chn 0.251.04375: H s tp trung ti trng.Da vo h s chiu rng vnh rng v bng 6.7 - 98 - TTTKHTCK, ta tm c:1.055: H s ti trng ng. Chn s b 1.3436.6274992557mm* Tnh s b khong cch trc:50.((10.28 - 156 - CTM): Momen xon trn bnh dn ln.(N/mm)1834.1203246765mm- Modun:m = (0,01 --> 0,02) 18.3412032468 -->36.6824064935mmChn v quy chun modun:m = 20mm(Modul t ng quy chun. Nu mun c th thay i.)* Tnh s rng ca mi bnh:- S rng ca bnh nh: =21.8313749628Ly 22- S rng ca bnh ln:161.7Ly 162 trnh hin tng ct chn rng th s rng ca mi bnh phi tho mn iu kin sau:(124 - NLM) x: H s dch dao. Vi bnh rng khng dch chnh th x = 0 Z: S rng. : Gc n khp Theo tiu chn TCVN 1065-71 l 20 ----> Vy c hai bnh tho mn iu kin trnh ct chn rng.* Tnh cc kch thc ca bnh rng:- ng knh vng chia:(B truyn khng dch chnh)Bnh rng nh: 440mmBnh rng ln:3240mm ---> ng knh vng chia ca bnh rng ln tho mn iu kin ln hn ng knh thng sy.- Khong cch trc:=1840mm- Chiu rng bnh rng ln:459.25mmChn460mm- Chiu rng bnh rng nh:464 ---->468mmChn468mm* Kim tra bn tip xc ca bnh rng:- H s trng khp ngang:(10.6 - 141 - CTM)Vi rng tr thng th = 0.1.7147923681- H s xt n tng chiu di tip xc:(10.22 - 155 - CTM)0.8727748148- Vn tc vng ca bnh rng:v = .0.169246m/sTheo bng 10.1 - 142 - CTM, Vn tc vng nh hn 2 m/s th chn cp chnh xc bng 9Da vo th 10.11 - 145 - CTM ta tm c h s phn b khng u ti trng:1.06- H s ti trng ng:1 + (10.12 - 148 - CTM): Cng ti trng ng.(10.14 - 148 - CTM): H s xt n nh hng ca cc sai s n khp.Theo bng 10.2 - 149 - CTM, chn 0.004: H s xt n nh hng ca sai lch cc bc rng bnh dn v bnh b dn.Theo bng 10.3 - 149 - CTM, chn 100: Vn tc vng.m/s1.0711336094: H s phn b khng u ti trng.: H s tp trung ti trng.H s 1.055 tm c trn.1.0029555538- bn tip xc ca bnh rng:(10.25 - 155 - CTM): H s xt n c tnh ca vt liu. Vt liu bng thp th275MPa: H s xt n hnh dng b mt tip xc.Vi gc n khp theo tiu chn TCVN 1065-71 l 20 th 1.76396.8900856869MPa < ---> Tho mn iu kin bn tip xc.* Kim tra bn un ca bnh rng:(10.35 - 159 - CTM)Bnh nh:: H s dng rng.Vi h s dch chnh bng 0 v s rng Z1, da vo th 10.21 - 158 - CTM, ta tm c:4: H s tp trung ti trng.Da vo h s chiu rng vnh rng v bng 6.7 - 98 - TTTKHTCK, ta tm c:1.12: H s ti trng ng.1 + (10.13 - 148 - CTM): Cng ti trng ng.(10.14 - 148 - CTM): H s xt n nh hng ca cc sai s n khp.Theo bng 10.2 - 149 - CTM, chn 0.011: H s xt n nh hng ca sai lch cc bc rng bnh dn v bnh b dn.Theo bng 10.3 - 149 - CTM, chn 100: Vn tc vng.m/s2.9456174258: H s phn b khng u ti trng.(10.11 - 146 - CTM)1: H s tp trung ti trng.H s 1.12 tm c trn.1.008115436373.1820767828MPa < ---> Bnh rng nh tho mn iu kin bn un.Bnh ln:: H s dng rng.Vi h s dch chnh bng 0 v s rng Z2, da vo th 10.21 - 158 - CTM, ta tm c:3.665.8638691045MPa < ---> Bnh rng ln tho mn iu kin bn un. Cc thng s k thut ca bnh rng tnh c l hp l.* Tnh cc kch thc khc ca bnh rng:- ng knh vng nh rng:Bnh nh:480mmBnh ln:3280mm- ng knh vng chn rng:Bnh nh:390mmBnh ln:3190mm ---> ng knh vng chn rng ca bnh rng ln tho mn iu kin ln hn ng knh thng sy.- Chiu cao u rng:20mm- Chiu cao rng:45mmIII. La chn chiu dy thn thng sy Chiu dy thn thng sy c tnh trn. Ta s kim tra bn ca thn thng sy phn sau.- B dy lp lt:0.23m =230mm- B dy v thng sy:0.02m =20mm- B dy lp bo n:0.12m =120mm- B dy lp v bo v:0.001m =1mm- Tng b dy thn thng:371mmIV. Xc nh v tr t vnh ln, bnh rng vng1. Tnh vnh lnDo thng quay chm, ti trng ln v nhit lm vic cao nn ta lp vnh ln vo thn thng qua chn . Gia chn vi thn thng sy c mt lp thp tng cng dy 20mmGia chn v mt trong vnh ln c cc tm thp mng hn ch va p.- Chn s b ng knh trong vnh ln:(249 - CSTKMHC): ng knh ngoi ca v thng ( khng tnh b dy bo n v v bo v)2.44m =2440mm2684 ---->2928mmChn 2700mm- Chn s b b rng vng ngoi ca vnh ln:B = 380mm- B dy vnh ln:B/2,6 =146.1538461538mm(250 - CSTKMHC)Ly148mm- ng knh ngoi ca vnh ln:2996mm --->ng knh ngoi vnh ln tho mn iu kin ln hn ng knh thng quay.- Chn gc vt u vnh ln:02. Tnh con ln - B rng ca con ln :B + (30 - 50)(5.34 - 250 - CSTKMHC)410 ---->430mmChn 420mm- Ti trng ring ca VLS nm trong thng:N/m(5.42 - 252 - CSTKMHC): Khi lng ring xp ca VLS.1380 g: Gia tc trng trng.g = 9.81: Tit din trung bnh ca lp vt liu.0.502252426799.392811476N/m- Ti trong ca lp lt:: Khi lng ring ca gch lt.700150664.974012N- Ti trng ring ca thn thng:N/m(5.39 - 251 - CSTKMHC): ng knh trong ca thng sy.2.4m S: B dy thng ( khng tnh lp bo n v lp v bo v) S = 0.02m: Khi lng ring ca vt liu lm v thng.785011606.72112N/m- Ti trng ring ca lp bo n:N/m(5.41 - 252 - CSTKMHC): B dy lp bo n.0.12m: ng knh trung bnh ca lp bo n.2.56m: Khi lng ring ca vt liu lm lp bo n.2001892.560896N/m- Ti trng ring ca v bc ngoi cng:N/m: B dy lp v bo v.0.001m: ng knh trong ca lp v bo v.2.68m: Khi lng ring ca vt liu lm lp bo n.7850648.0419292N/m- Ti trng ca bnh rng vng:Coi bnh rng vng c dng hnh vnh khn.Vt liu lm bnh rng vng l thp CT5, khi lng ring7850(252 - CSTTMHC): ng knh ngoi ca bnh rng, ly bng ng knh vng chia.3240mm =3.24m: ng knh trong ca bnh rng, ly ln hn ng knh ngoi thng .2.475m121574.872403966N- Ti trng ca mt vnh ln:Coi vnh ln c dng hnh vnh khn.Vt liu lm vnh ln l thp CT5, khi lng ring785038730.5450834688N- Tng ti trng ca cnh nng:(4a + 2b + 2c). a: Chiu di cnh nng(m)b: Chiu rng cnh nng(m)c: Chiu rng ca phn gp.(m): Khi lng ring ca vt liu lm cnh nng.Chn vt liu lm cnh nng l thp 25.7850: B dy cnh nng(m)z: S cnh nng.Chn chiu di cnh nng:a = 1mChn chiu rng cnh nng:b = 0.4mGc gp ca cnh nng:135Chiu rng ca phn gp:c = 0.1mB dy cnh nng ly bng na b dy thng:10mm =0.01mS cnh nng trn mt n v chiu di thng: =14S cnh nng trn mt ct ngang:12Tng s cnh nng:z =16865940N dn VLS vo thng sy th ta t cnh xon pha u thng sy vi chiu di 0.8mDo s cnh nng trn mt n v chiu di thng s cn li l 13- Ti trng ca mt chn v tm tng cng:Chn:4000NMi vnh ln lp trn 12 chn . C hai vnh ln t i xng.- Tng ti trng ca thng:Q = Q =804894.971176368N- Ti trng trn mt vnh ln:Q' = : Gc nghing ca thng. = 2 Q' = 402692.546372473NChn gc gia hai con ln l: 2 =60- Phn lc ca mi con ln ln vnh ln:T = =232459.033156576N(5.27 - 245 - CSTKMHC)- ng knh con ln: =18.4491296156 --->13.8368472117cm(5.36 - 250 - CSTKMHC)Mt khc:(5.37 - 250 - CSTKMHC)---->74.9 < q.(L2 2.L.l)/8 = - q.(L l)2/8.Gii phng trnh trn ta tm c quan h:vDo l < L nn Vy khong cch gia hai vnh ln l: l = 8.2010101268mKhi lp bnh rng vng vo thn thng, bnh rng vng va chu un, va chu xon. trnh bnh rng vng b ph hu th ta phi hn ch cc momen ny.Do bnh rng vng phi nhn cng sut nn lun lun phi chu un, v th ta s tm cch gim momen un xung mc thp nht.Trn biu ni lc ta thy c 2 v tr m momen un bng 0. Hai v tr ny thch hp t bnh rng vng.T biu ni lc, ta thy v tr m momen un bng 0 nm gia hai gi . tm c hai v tr ny th cho MBC = - P. (z x) - q.z2/2 + Yb.(z x) = 0Gii phng trnh trn ta tm c :v Vi x = (L - l)/2 = 2.8994949366mVy khong cch t v tr t bnh rng vng ti mp tri thng l:z = 9.8994949366mvz = 4.1005050634mChn v tr t bnh rng vng sao cho bnh rng cch xa l t trnh nhit cao lm gim tnh bn.Nu l t t bn tri th z =9.8994949366mV. Kim tra bn thn thng sy - Momen xon sinh ra khi thng quay:224180197.255786N.mm=224180.197255786N.m- Momen un ln nht:(VI.34 - 170 - QT&MGCCH)239755.948861046N.m- Momen tnh ton ca thng: (VI.36 - 171 - QT&MGCCH) M =328237.224969843N.m- Momen chng un ca thng:(VI.37 - 171 - QT&MGCCH)S : B dy thng sy.S = 0.02mW = 0.090432- ng sut sinh ra trn thng: = M/W =3629657.91942944N/=3.6296579194MN/- ng sut cho php tiu chun ca vt liu lm thn thng nhit lm vic:(165.9962588235 C ) []* =140MN/(2.8 - 30 -TTTKCTTBHCDK)- ng sut cho php ca vt liu lm thn thng nhit lm vic: [] = . []* : H s hiu chnh. Vi thng sy c v bc cch nhit th: = 0.95 [] =133MN/Ta thy: < []Vy b dy thng chn l bn.- vng ln nht gia thng:(cm)(VI.39 - 171 - QT&MGCCH)Q: Tng ti trng ca thng.(N)L: Chiu di thng sy(cm)E: ng sut cho php ca vt liu lm thng sy.N/cm )J: Momen qun tnh.(cm )(cm )(VI.40 - 171 - QT&MGCCH): ng knh ngoi ca v thng ( khng tnh b dy bo n v v bo v)(cm): ng knh trong ca thng sy(cm)J = 11126162.96(cm )2.7207778239x 10cm < vng nm trong gii hn cho php.VI. Tnh ton bn cho con ln chn, con ln , vnh ln1. Tnh bn cho vnh ln.- Momen un cc i ca vnh ln: A . Q' . R(N.cm)(5.102 - 281 - CSTTMHC) A: H s ph thuc vo tnh cht ca ti trng v phng php lp vnh ai vi thng.Vnh ai lp t do trn cc chn , A = 0.07 Q': Ti trng tc dng ln vnh ln.(N) R: Bn knh trong ca vnh ln(cm) R = 1350mm =135cm3805444.56321987N.cm- Momen chng un ca vnh ln:: B dy vnh ln.148mm =14.8cmW' = 8469.522- ng sut sinh ra trn vnh ln: = M'/W' =449.310428997=4.49310429MN/- ng sut cho php ca vnh ln:(XIII.1 - 355 - STT2): Gii hn bn ko ca vt liu lm vnh ln nhit lm vic.500MN/(XII.4 - 309 - STT2): H s an ton theo gii hn bn.Theo bng XIII.3 - 356 - STT2, chn:3.5 : H s hiu chnh. Theo bng XIII.2 - 356 - STT2, chn: = 0.9 [] =128.5714285714MN/Ta thy: < []Vy vnh ln chn l bn.2. Tnh bn cho con ln - Ti trng trn mt n v chiu di ca con ln :P = T/B = 61173.4297780464N/cm- p sut trn b mt tip xc vnh ln - con ln (c hai cng lm bng thp CT5):(5.108 - 284 - CSTTMHC) P: Ti trng trn mt n v chiu di con ln . (N/cm) E: Momen n hi ca vt liu lm con ln .Theo tiu chun thit k thp TCVN 338 : 2005 th E = 2.1 r: Bn knh trong ca con ln . r = 430mm =43cm R: Bn knh trong ca vnh ln. R = 1350mm =135cm82961.4307986127- ng sut cho php ca vt liu lm con ln :50000(285 - CSTTMHC)Kim tra iu kin: