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1、VmQQDQDQvDVm44Re常数kpVkkVVpp211221ZpaQm1212paQVc32144175. 065 . 281 . 2037. 0)1 (0900. 0Re)/10(0029. 01840. 00312. 05959. 0LLC1214241pdCQV2224241pdCQV14)35. 041. 0(1kppDdpdCQm214224pDQCm241242Re4DQm2422Re1ApDCCAX242125. 0221XX197. 02A1X111C1112CXA 1221AA11CnnAXCA102213X3212111nnnnnnnXXXXnXDXXDd25. 02
2、21ppCC2224241111p9 . 11pAQV 1pCQV pCQm )( 为常数nAnC 510VKF60VCVVVVKCCK167. 18569. 0 或4 . 11kXppT 5 . 01 ppVCVCLppppppF 121VFLpFpppF 1max21)()(12maxVFLpFpFp minmaxQQR minmaxminmaxminmaxCCpCpCQQR minCmaxminmaxminminmaxminmaxppRpCpCQQRs maxTpp sRppRRTs min2min1maxQQQRTp 路流量阀体部件最小流量旁总管道最大流量maxmax1TQQB min
3、1max1QQR RBQQT maxmin1 maxmax1max2)1 (TTQBQQQ 2max11111QQBRRBRTp )(rrLfQ 100QQQr 100llLrKdLdQrr RLRQQKLQrrr1)11 (maxmin ) 1(1 1rrLRRQ rrrKQdLdQ1rLrRQ1lnlnRQLrrRRKrLln1 rrrQKdLdQ2) 1(11rrLRRQ) 1(1)1(2rLRRRK)1 ()(rrrrLKLfdLdQ2)1)(11 (1rrLRQ)1)(11 (2rLRK 1)(112rTLfsppTrppLf0, 0)(TmrpspLf , 1)(1)(111)()
4、(2maxrrTrLfsLfppLfQQsLfsLfppLfQQrrmr)(11)()(2100T12QQQ()1fr2pQC f LpQCp()TfrpQC f LpCp 1max1maxmax1max2fTfpCQQBQQQCC)1 ()(maxBLBfQQrVKVKVKmaxVKmaxVK%85maxVVKK maxQ jTVpppppsspspj 11dp2dp)(21ddppsp maxminBAppp jpppmin1max2min1ppp mp2min2maxQQppm 0)75. 05 . 0(DD 0DmaxiQ%86max K%92max K%89max K%96max K
5、%100)(100 llK111%100111)(12100 RKKRRRQQssRRKVViiVViiKKQQssRKlg48. 111%10011)(lglg12100 sRs10 )(/47523max0标况hmQV hm /3)(/47523max0标况hmQV Papatm100900 %0 30/293. 1mkg sPa 6109 .74Papppatm10990090001009001 KtTT15.72345015.27301 4503. 0115.72310132510990015.273293. 1101001 ZTppT4100921. 24781 . 0 DKFKhm
6、TTppQQVV/053.1159915.27315.723109900101325475231010max0max hmTTppQQVV/1 .292915.27315.723109900101325120031010min0min 51596478. 0109 .7436004503. 011599436004Re61maxmax DQV13030478. 0109 .7436004503. 01 .2929436004Re61minmin DQV1687. 02Remax2 pDA14)35. 041. 0(1kpp75. 065 . 281 . 2Re)/10(0029. 01840. 00312. 05959. 0 C2421AC 5483. 0 mmDd0874.2624785483. 0 hmpDCQV/253.11599214360031224max %2 . 01072. 1053.11599053.11599253.115995maxmaxmax VVVQQQ