滚动转子压缩机的设计说明

1、一、设计条件设计题目：设计一台家用空调全封闭滚动转子式制冷压缩机要求：热力计算和动力计算(转子受力分析)，做出结构简图设计条件：汽缸直径D(mm):54相对气缸长度卜:0.8相对偏心距r:0.09滑片厚度b2e相对余隙容积c：1.2%吸气孔口前边缘角B:3035转速n：2980r/min制冷剂：R410a：计算四种工况：怵准工况；T0=5oC;Ti=15oC;Tk=55oC;T4=50oC;最大压差工况；T0=5oC;Ti=15oC;Tk=50oC;T4=45oC;最大轴功率工况；5oC;Ti=15oC;Tk=45oC;设计工况：n=7.2oC;Tk=54.4oC;T4=40oC;18.3oC

2、;T4=46oC;滚动转子示意图转子轴向长度L=D*n=54*0.8=43.2mm偏心距e=R*p=0.5D*r=0.5*54*0.09=2.43mm转子的半径r=R-e=0.5*54-2.43=24.57mm滑片厚度b取2e,贝Ub=2e=2*2.43=4.86mm吸气孔口前边缘角B：32吸气后边缘角a:22排气后边缘角丫：32排气前边缘角小：22三、热力计算1.四种工况的温度表，如下To(C)Ti(C)Tk(C)T4()标准工况5155550最大压差工况-5155045最大轴功率工况-5154540设计工况7.218.354.446各种工况循环的p-h图:2.热力计算，如下表:R410a标

3、准工况最大压差工况最大轴功率工况设计工况PiPs0/MPa0.9320.6800.6800.996P2pdk/MPa3.3963.0332.7013.351压力比强pso3.6444.4603.9723.36431、viVso/(m?kg)0.0300.0440.0440.029/31、V2/(m?kg)0.0090.0110.0120.009h1/(kJ?kg1)435.51439.52439.52437.411、h2/(kJ?kg)473.48486.55482.75473.10h4/(kJ?kg1)292.19280.72270.02282.96等燧指数=1.16由r410aCv的性质经

4、计算求得1.161.161.161.16压缩多变指数nln(P2/Pl)ln(v1/v2)1.0741.0781.0621.036工质单位质量制冷量qmh1h4/（kJ?kg-1）143.32158.80169.50154.45单位等嫡压缩功ts1h2h1/（kJ?kg）37.9747.0343.2335.69理论容积输气量qvt60nz(D2d2)L/(m3?h1)3.043.043.043.04v1容积系数Pdkn1c1pso0.970.970.970.98压力系数p（通常认为p近似等于1）1111温度系数t（通常，当压力比=28时，T=0.950.82,压力比高时取卜限）0.900.90

5、0.900.90泄漏系数l（转速为3000r/min时，l约为0.820.92围）0.880.880.880.88回流系数h（一般近似取1）1111容积效率vvpTlh0.770.770.770.78实际质量输气量qmavq/（kg?h）Vi78.0353.2053.2080.72制冷量Qoq&m/kW36003.1062.3472.5053.463等嫡压缩功率Ptsqmats/kW36000.8230.6950.6390.800PdkPdPso-Ps其中Ps0,Pd0.1Pdk4.0084.9064.3693.701Tl；(1)指示效率i1n，一-；(n11)n10.770.780.780.

6、78P,一指示功率PiPs1.070.890.821.03机械效率m(m=0.400.85)0.80.80.80.8电动机效率mo（小冰箱mo0.65,商用制冷机mo0.8）0.70.70.70.7电效率elimmo0.600.500.460.58电功率Pel(Pts/a)/kW1.371.391.391.38性能系数（相对功率）CORQ0Pel2.271.691.802.51四、转子受力分析1）压缩过程中基元容积的气体压力r(2)(0.5)(1)sin0.25sin2nPs0(2)(0.5)(1)sin0.25sin22）作用于滚动转子上的气体力合力Fg RL(1 )(pPs)2(1 cos

7、) i (1 cos2)3）作用于滚动转子上的阻力矩 MMg M fgMgFg旋转力矩Mg12R2L (12)(PPso) , 2(1 cos ) 1(1cos2 )摩擦力矩19550Pi ( 一m1)-n五、气体合力与阻力矩随转角的变化曲线标准工况0P。FgMgMfM00.932000.8572570.85725750.93200.00000000000.8572570.857257100.93200.00000000000.8572570.857257150.93200.00000000000.8572570.857257200.93200.00000000000.8572570.8572

8、57250.93200.00000000000.8572570.857257300.93200.00000000000.8572570.857257350.9335711.0895260.00086479130.8572570.858122400.9368363.8056160.00342799110.8572570.860685450.9409987.9025950.00794496960.8572570.865202500.94615813.694710.01516347630.8572570.87242550.95241721.514080.02595038300.8572570.883

9、207600.95987631.707350.04128323470.8572570.89854650.96863844.632860.06223904750.8572570.919496700.97880860.658490.08998121650.8572570.947238750.99049480.160290.12574541200.8572570.983002801.003812103.521808572571.028082851.018884131.13410.22655898900.8572571.083816901.035839163.3970.294

10、31656990.8572571.151573951.054821200.72050.37548990900.8572571.2327471001.075985243.52770.47148461490.8572571.3287411051.099502292.25810.58371487110.8572571.4409721101.125563347.37190.71360125830.8572571.5708581151.154379409.35580.86257169690.8572571.7198281201.18619478.72861.03206551770.8572571.889

11、3221251.221265556.04911.22354057210.8572572.0807971301.259906641.92411.43848322030.8572572.295741351.302462737.01861.67842097680.8572572.5356781401.349325842.06651.94493756350.8572572.8021941451.400948957.88322.23969011330.8572573.0969471501.4578491085.3812.56442829170.8572573.4216851551.5206271225.

12、5842.92101515340.8572573.7782721601.5899721379.6513.31144963580.8572574.1687061651.6666881548.8923.73789070520.8572574.5951471701.7517111734.8034.20268332260.8572575.059941751.8461361939.0894.70838658070.8572575.5656431801.9512472163.7065.25780459280.8572576.1150611852.0685612410.9045.85402098590.85

13、72576.7112781902.1998772683.2816.50043817980.8572577.3576951952.3473332983.8487.20082302940.8572578.058082002.5134943316.1127.95936089010.8572578.8166182052.7014423684.1698.78072075710.8572579.6379772102.914914092.8349.67013487440.85725710.527392153.1584494547.79410.63349715350.85725711.490752203.39

14、64971.78811.48343773270.85725712.340692253.3964902.02811.16344428640.85725712.02072303.3964823.63510.80924974620.85725711.666512353.3964736.51110.42230690850.85725711.279562403.3964640.56910.00435556740.85725710.861612453.3964535.7349.55744588850.85725710.41472503.3964421.9549.08395716240.8572579.94

15、12142553.3964299.1998.58661074820.8572579.4438672603.3964167.4698.06847616700.8572578.9257332653.3964026.7977.53296948350.8572578.3902262703.3963877.2516.98384332800.8572577.84112753.3963718.9386.42516814800.8572577.2824252803.3963552.0075.86130453310.8572576.7185612853.3963376.6515.29686672470.8572

16、576.1541232903.3963193.1084.73667768770.8572575.5939342953.3963001.6648572575.0429733003.3962802.6383.64905813890.8572574.5063153053.3962596.41638572573.9890663103.3962383.4132.63903686040.8572573.4962943153.3962164.09228572573.0329533203.3961938.9571.746557173

17、80.8572572.6038143253.3961708.5471.35612781830.8572572.2133853303.3961473.4411.00858488170.8572571.8658423353.3961234.2480.70770407170.8572571.5649613403.396991.60430.45679723500.8572571.3140543453.396746.17040.25865610010.8572571.1159133503.396498.62680.11550422620.8572570.9727613553.396249.66830.0

18、2895833770.8572570.8862153603.39600.00000000000.8572570.857257性与G的关系M与日的关系- - 一 - 05 0 5 0 金tlw501001502002503003504006/()最大压差工况0P。FgMgMfM00.68000.7130450.71304550.6800.00000000000.7130450.713045100.6800.00000000000.7130450.713045150.6800.00000000000.7130450.713045200.6800.00000000000.7130450.713045

19、250.6800.00000000000.7130450.713045300.6800.00000000000.7130450.713045350.6811510.7978960.00063331560.7130450.7136790.6835420.6865890.6903680.6949530.7004160.7068330.7142820.7228420.7325980.7436380.756060.7699670.7854730.8027060.8218030.8429220.8662380.8919490.9202780.9514790.9858441.0237041.0654411

20、.1114951.1623751.2186741.281081.3503991.4275791.5137391.6102021.7185491.8406681.9788362.135812.3149472.5203692.757173.0316923.0333.0333.0333.0333.0332.7869985.7874210.0293415.7560723.2215632.6883944.4261958.710675.8228396.04977119.6847147.0285178.3918214.0974254.4835299.9077350.7517407.4263470.37825

21、40.0969617.1227702.0565795.57898.41871011.4561135.6491272.11422.0691586.9981768.5491968.6412189.52433.7152704.3183004.873339.5783713.4444132.4454603.7764523.1384431.5174331.4054222.7514105.5260.00251044870.7130450.00581845260.7130450.01110499790.7130450.01900504230.7130450.03023466430.7130450.045582

22、88430.7130450.06590210620.7130450.09209782150.7130450.12511819990.7130450.16594414490.7130450.21558032910.7130450.27504764830.7130450.34537744670.7130450.42760777540.7130450.52278185670.7130450.63194884020.7130450.75616685720.7130450.89650831170.7130451.05406729160.7130451.22996894110.7130451.425380

23、61440.7130451.64152462920.7130451.87969244960.71304527130452.42770526320.7130452.74062451770.7130453.08175345460.7130453.45298733270.7130453.85640427720.7130454.29429113970.7130454.76917298180.7130455.28384736330.7130455.84142497700.7130456.44537861510.7130457.09960301130.7130457.808488

24、80890.7130458.57701482730.7130459.41086400810.71304510.31657004620.7130459.95279551780.7130459.55367234170.7130459.12689536350.7130458.67473668960.7130458.19979508550.7130450.7155560.7188640.724150.732050.743280.7586280.7789470.8051430.8381640.8789890.9286260.9880931.0584231.1406531.2358271.3449941.

25、4692121.6095541.7671131.9430142.1384262.354572.5927382.8543053.1407513.453673.7947994.1660334.569455.0073365.4822185.9968936.554477.1584247.8126488.5215349.2900610.1239111.0296210.6658410.266729.8399419.3877828.91284404550556065707580859095100105110115120125130135140145150155160165170175180185190195

26、2002052102152202252302352402452502552603.0333979.737.70500179420.7130458.4180472653.0333845.3957.19361899130.7130457.9066642703.0333702.5866.66923025600.7130457.3822762753.0333551.40467130456.8487682803.0333391.9945.59726037590.7130456.3103062853.0333224.5375.05824975780.7130455.7712952

27、903.0333049.2624.52329650940.7130455.2363422953.0332866.443.99715529720.7130454.7102013003.0332676.3833.48467280880.7130454.1977183053.0332479.4512.99072526910.7130453.7037713103.0332276.0442.52015167710.7130453.2331973153.0332066.6032.07768416970.7130452.7907293203.0331851.6091.66787704130.7130452.

28、3809223253.0331631.5791.29503602130.7130452.0080813303.0331407.0650.96314944260.7130451.6761953353.0331178.6470.67582292240.7130451.3888683403.033946.93380.43621911280.7130451.1492643453.033712.55640.24700397870.7130450.9600493503.033476.16430.11030091080.7130450.8233463553.033238.42110.02765380220.

29、7130450.7406993603.03300.00000000000.7130450.713045陞与9的关系m与e的关系 M与日的关个最大轴功率工况0P。FgMgMfM00.68000.6569630.65696350.6800.00000000000.6569630.656963100.6800.00000000000.6569630.656963150.6800.00000000000.6569630.656963200.6800.00000000000.6569630.656963250.6800.00000000000.6569630.656963300.6800.0000000

30、0000.6569630.656963350.6811340.7860440.00062390790.6569630.657587400.6834892.7455260.00247309250.6569630.659436450.6864915.7011130.00573168250.6569630.662695500.6902139.8793710.01093894260.6569630.667902550.69472815.51970.01871993090.6569630.675683600.70010822.871850.02977934220.6569630.686742650.70

31、642732.193910.04489335110.6569630.701856700.71376143.75070.06490008110.6569630.721863750.72218757.812710.09068933270.6569630.747652800.73178874.655650.12319218570.6569630.780155850.74265194.560440.16337104630.6569630.820334900.754871117.81390.21221064740.6569630.869174950.768548144.710.27071043330.6

32、569630.9276741000.783794175.55160.33987867530.6569630.9968421050.800732210.65310.42072857360.6569631.0776921100.819496250.34320.51427651260.6569631.171241150.84024294.96920.62154254900.6569631.2785061200.863132344.90070.74355313230.6569631.4005161250.888364400.53560.88134599090.6569631.5383091300.91

33、6154462.30551.03597705690.6569631.692940.9467470.9804241.0175071.0583631.1034181.1531631.2081671.2690931.3367181.4119511.4958661.5897321.6950621.8136631.9477112.0998352.2732362.4718352.7004742.7012.7012.7012.7012.7012.7012.7012.7012.7012.7012.7012.7012.7012.7012.7012.7012.7012.7012.7012.7012.7012.70

34、12.7012.7012.701530.6825606.1874689.3985780.9617881.6022992.13831113.4971246.7331393.0481553.8211730.6361925.3192139.9842377.0912639.5122930.6163254.3783615.5144019.6523956.3993884.9393806.2463720.2593626.9353526.2513418.2043302.8243180.1643050.3142913.3952769.5662619.0222461.9952298.7552129.6091954

35、.9021775.0131590.3541401.3691208.5331012.344813.3248612.0172408.97921.20852926341.40012302451.61192820091.84517736932.10118024842.38133919282.68716574443.02029833463.38252136143.77578602014.20223345544.66422102855.16435275985.70551533906.29092148966.92416297957.60927619748.3508240336986

36、586596478.54849117788.20568287407.83912262207.45076194207.04283292306.6178532198672822539205.26999384214.80750668074.34454855953.88507532743.43317078442.99299776732.56874448322.16456716511.78453026221.43254547411.11231100680.82725245370.58046669190.37467013470.21215258860.09473784140.65

37、69630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.6569630.656963

38、0.6569630.6569630.6569630.6569630.6569630.6569631.8654922.0570862.2688912.502142.7581433.0383023.3441293.6772614.0394844.4327494.8591975.3211845.8213166.3624786.9478857.5811268.2662399.0077879.8109629.5228299.2054548.8626468.4960868.1077257.6997967.2748166.8355886.3851885.9269575.464475.0015124.5420

39、384.0901343.6499613.2257082.821532.4414932.0895091.7692741.4842161.237431.0316330.8691160.7517011351401451501551601651701751801851901952002052102152202252302352402452502552602652702752802852902953003053103153203253303353403453503552.701204.78070.02375194830.6569630.6807153602.70100.00000000000.65696

40、30.656963OOO 50 O o O0 OS4/&o o O0 Q0 02 1性与9的天系100 150 日耽 J2S0 300 350 40。O从与e的关系+M与U的关系5 0 5 0金事W设计工况0P。FgMgMfM00.996000.825210.8252150.99600.00000000000.825210.82521100.99600.00000000000.825210.82521150.99600.00000000000.825210.82521200.99600.00000000000.825210.82521250.99600.00000000000.825210.8

41、2521300.99600.00000000000.825210.82521350.997621.1231130.00089145060.825210.826101401.0009853.9226910.00353344870.825210.828743451.0052748.1450680.00818874230.825210.833398501.01059114.113520.01562721400.825210.840837551.01703922.169430.02674087350.825210.8519511.0247211.0337431.044211.0562341.06993

42、1.0854211.102841.1223281.1440421.1681531.194851.2243451.2568751.2927051.3321391.3755161.4232271.4757151.5334921.5971421.6673441.7448821.8306691.9257682.0314292.149122.2805782.4278652.5934422.7802652.9919013.2326823.3513.3513.3513.3513.3513.3513.3513.3513.3513.3513.3513.35132.6686645.9785762.4756882.

43、54406106.5745134.9646168.1192206.4526250.3904300.3732356.861420.3376491.3175570.3526658.04755.032862.0461979.87731109.4121251.6431407.691578.8161766.4581972.2492198.0592446.032718.6273018.73349.5533715.0344119.6484568.6954751.8514685.1774610.2524526.9824435.2844335.0874226.344109.0153983.1133848.664

44、3705.7333554.4230.04253486850.06411560170.09267684720.1294847761023317684260.30282239270.38621290950.48477111800.59992292710.73309441060.88571192351.05920534101.25501430281.47459726521.71944309611.99108491252.29111584552.62120643412.98312339323.37874957293.81010503474.27936930324.788905

45、02105.34128344065.93931242796.58606794077.28493028698.03962687498.85428366579.733488145110.682367404310.975444748610.669606856510.33108082489.96125518259.5617927602968211003148.20676473717.71155088207.19973341466.67489896006825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.825210.8252