《泵与压缩机》练习题答案

泵与压缩机练习题 第一章 1 -1 解：3221 08 5 4.71.044 DA smAQ/2 0 3.11 08 5 4.73 6 0 03 43 ， mgdLh2 6 6.08.922 0 3.11.01 80 2.0222 hggpHgpg222211 PahgHggpp55525221121 05 4 8 5.01 04 6 4 5.01 00 1 3.12 6 6.08.922 0 3.14.48.91 0 0 01 00 1 3.12 5211 04 6 4 5.0ppp真 mmHgpH5.3 4 82 8.1 3 31 04 6 4 5.02 8.1 3 35 真真 OmmHOmHpH22525 5 9 75 9 7.59 8 0 01 05 4 8 5.09 8 0 0 1 -2 解： ggpzHggpz2222222111 gpgpzzH1212 Pap6 1 3 1 68.91 3 6 0 03.01 00 1 3.151 Pap2 4 8 4 0 01 4 7 1 0 01 00 1 3.152 mH9 5.2 58.97 5 06 1 3 1 62 4 8 4 0 05.0 1 -5 解：1 ）当泵流量hmQT/2.73时 smnDu/8 2.1 36 01 4 5 01 8 2.06 022 smBDQcTr/555.036009.0007.0182.02.72222 smctgctgcucAru/856.1230555.082.1302222 mcugHrT13.18856.1282.138.91122 2）当泵流量hmQT/8.283时 smBDQcTr/221.236009.0007.0182.08.282222 smctgctgcucAru/975.93022.282.1302222 mcugHrT067.14975.982.138.91122 3）画出两种流量时叶轮出口的速度三角形（略） 随流量TQ 的增大，rc2 增加，uc2 减小，TH下降。 1-6 解：smnDu/406.3360290022.06022 smBDQcTr/617.301.022.0025.0222 smcwAr/655.922sin617.3sin0222 smctgctgcucAru/454.2422617.3406.3302222 0222413.8454.24617.3arctgccarctgur mcugHrT357.83454.24406.338.91122 1-7 解：smnDu/295.2460145032.06022 938.029sin32.0005.061sin102222ADz smnDu/3.12601450162.06011 809.018sin162.0005.061sin101111ADz smtgtgucAr/997.3183.120111 smcBDQrT...