JB-T 2977-1992 风机和罗茨鼓风机 术语

J72JB/T297719921992-12-251993-07-01()I112131424529()112GB3947GB4975JB436133.13.1.111011102unit1103auxiliaryequip–ment1104plant1105fanptF0.015MPa1106centrifugalfan1107axialfan1108turbo–blowerp0.015MPap0.2MPa1.1531109centrifugalblower1110axialblower1992-12-25JB/T29771992JB2977—811993-07-01JB/T2977199221111turbo–compres–sorp0.2MPa31112centrifugalcom–pressor1113axialcompres–sor1114mixedflowtype1115displacementtype1116rotarytype1117Enkeblower11118regenerativeblower21119booster1120rotorbladead–justable1121statorbladead–justable1122suctiondirection1123disghargedir–ection1124clockwise1125anticlockwise1126overhangtype1127centerimpeller1128casing1129section1130stage1131verticaltypeB1132horizontoltypeA1133shaftingJB/T2977199231134axialthrustFaN1135single–suctiontype1136double–suctiontype3.1.21201lowpressurecentrifugalfanptF1kPa1202middlepressurecentrifugalfan1kPaptF3kPa1203highpressurecentrifugalfan3kPaptF15kPa1204lowpressureaxialfanptF0.5kPa1205highpressureaxialfan0.5kPaptF15kPa1206size1515dm1207crossflowfan1208contrarotatingaxialfan1209meridionallyac–celeratedaxialfan1210multibladefan1211AmotordirectlydriventypeA3A1212beltdriventype1213BB3B1214CC3C1215EE3E1216DdrivetypewithcouplingD3D1217FF3F1218axialfanforcoolingtower1219fanforpowerstation1220fanformineventilationJB/T2977199241221localventilationfan1222axialfanfortextilefactory1223axialfanfortunnelventila–tion1224centrifugalfanforhightem–perature2501225centrifugalfanforextractiondust1226centrifugalfanforcoalconvey–ing1227roofextractionfan1228anti–explodefan3.1.31301verticalsplittype1302horizontalsplittype1303barreltype1304multishafttype1305packagedtype1306sinteringcen–trifugalblower1307backtobacktype1308stationarytype1309portabletype1310isothermaltype1311intercooling1312outletcoolingJB/T2977199251313pipelinetype1314highspeedblower3000r/min1315lowerspeedblower1316–axial–centrifu–galtype1317equalouterdi–ameter1318equalinnerdi–ameter1319equalmeandi–ameter1320suctionnozzlesize1321dischargenozzlesize3.1.41401rootsblower1402aircooling1403watercooling3.22001profile2002camberline42003chord2004chordlengthbmm2005leadingedgepoint2006trailingedgepoint2007camberfmm2008maximumcam–berfmaxmm2009maximumcam–berpositionamm2010camberratiof=f/bf2011bladethicknessCmm4JB/T2977199262012maximumbladethicknessCmaxmm2013maximumthick–nesspositione2014bladethicknessratioC=C/bC2015directionalangleofleadingedge4X12016directionalangleoftrailingedge4X22017camberangleofairfoilc=X1+X2c2018frontlineofcas–cad2019inflowangle512020dischargeangle522021inletgeometricangle51A2022outletgeometricangle52A2023bladestaggerangle52024airfoilstaggerangleA2025attackanglei=1A–1i2026diviationangle=2A–22027flowdeflectionangle=2–12028pitchofcascade5tmm2029pitch–chordra–tiot=t/bt2030solidityofcas–cadeτ=b/tτ2031bladeheightlmm2032aspectratio=l/b2033bossratiod2034diametralratioti2035spanLmm2036relaivewidthb2D22b=b2/D22b2037bladefrequencyHz2038cascadeJB/T2977199272039cylindricalcas–cade2040planecascade2041annularcascade2042in–linecascade2043spacecascade2044doublecascade2045S1S1relativestreamsurface62046S2S2relativestreamsurface62047perfectgaspV=RT2048realgaspV=ZRT2049standardatmo–sphereHkmtpkPakg/m3H11kmt1=t0–6.5Hp/p0=1–0.02257H5.256/0=1–0.02257H4.256H11kmt2=–56.5p/p0=1.266e–0.1578H/0=1.684e–0.1578He0t0=15p0=101.3kPa0=1.225kg/m32050dryair28.966287J/kgK098.1kPa=1.293kg/m32051moistair2052normalcondi–tion101.3kPa02053standardcondi–tion101.3kPa2050%2054standardair=1.20kg/m3JB/T2977199282055criticalpressurepcrkPa2056criticaltempera–tureTcrK2057contrastpres–surepr=p/pcrpr2058contrasttem–pretureTr=T/TcrTr2059MachnumberM2060peripheralMachnumber2061criticalMachnumberMcr2062Reynoldsunm–berRe2063peripheralReynoldenum–berRem=ub/v2064criticalRey–noldsnumberRecr3.33.3.13101characteristic3102characteristiccurve3103performance3104performancepa-rameter3105performancecurve3106dimensionlessperformancecurve3107predictedper–formancecurve3108networkcharac–teristic3109suctioncondi–tion3110volumecapacityqvm3/s3111masscapacityqmkg/sJB/T2977199293112dischargecondi–tion3113pressurerisepkPa3114pressureratiop2p1p2/p13115capacitycoeffi–cientϕ=qv/Auϕ3116relativevelocityWm/s3117peripheralve–locityui=riuim/s3118absoluteveloci–tycm/s3119velocitytriangle3120axialvelocityCam/s3121radialvelocityCrm/s3122tangentialve–locityCum/s3123meridionalvelocityCmm/s3124specificspeedns=21v/nq/43ad/hns=24.83ns=21v/nq/KptptF3/4ns3125codfficientofperipheralve–locity2u=C2u/u22u3126slip3127slipfactorC2uC2u=C2u/C2u3128degreeofreac–tion3129mechanicalloss3130lossofnetwork3131lossofdiffusion3132impactloss3133frictionloss3134flowloss3135discfrictionloss3136secondaryflowJB/T29771992103137drownedflow3138leakage3139internalleakage3140outletleakage3141leakageloss3142leakagefactor13143factorofdiscfrictiondf3144innerpowerPinkW3145innerefficiencyin3146shaftpowerPshkW3147shaftpowerofplantPshkW3148marginofpowerK3149mechanicaleffi–ciencyme3150plantefficiencyp3151loosespeedN0r/min3152criticalspeedNcrr/min3153lateralvibration3154torsionalvibra–tion3155revolvingeffect315