{"id":2207,"date":"2017-04-13T22:38:45","date_gmt":"2017-04-13T14:38:45","guid":{"rendered":"https:\/\/www.maituflow.com\/?p=2207"},"modified":"2019-05-13T20:50:05","modified_gmt":"2019-05-13T12:50:05","slug":"npsh","status":"publish","type":"post","link":"https:\/\/www.maituflow.com\/npsh\/","title":{"rendered":"\u5982\u4f55\u8ba1\u7b97\u6c34\u6cf5\u6700\u5927\u5b89\u88c5\u9ad8\u5ea6"},"content":{"rendered":"
\u79bb\u5fc3\u6cf5\u662f\u8f93\u6c34\u4e2d\u6700\u5e38\u7528\u7684\u6cf5\u4e4b\u4e00\uff0c\u6cf5\u623f\u5185\u7684\u5730\u576a\u6807\u9ad8\u53d6\u51b3\u4e8e\u6c34\u6cf5\u7684\u5b89\u88c5\u9ad8\u5ea6\uff0c\u6b63\u786e\u5730\u8ba1\u7b97\u6c34\u6cf5\u7684\u6700\u5927\u5141\u8bb8\u5b89\u88c5\u9ad8\u5ea6\uff0c\u4f7f\u6cf5\u7ad9\u65e2\u80fd\u5b89\u5168\u4f9b\u6c34\uff0c\u53c8\u80fd\u8282\u7701\u571f\u5efa\u9020\u4ef7\uff0c\u5177\u6709\u5f88\u91cd\u8981\u7684\u610f\u4e49\u3002<\/p>\n
<\/p>\n
\u4e3a\u4e86\u907f\u514d\u6c7d\u8680\u73b0\u8c61\u7684\u53d1\u751f\uff0c\u79bb\u5fc3\u6cf5\u7684\u5b89\u88c5\u9ad8\u5ea6\u9700\u8981\u8fdb\u884c\u975e\u5e38\u4ed4\u7ec6\u7684\u6821\u6838\u8ba1\u7b97\u3002\u6c34\u6cf5\u8fdb\u6c34\u4fa7\u88c5\u7f6e\u5f62\u5f0f\u793a\u610f\u56fe\u5982\u4e0b\uff1a<\/p>\n
\u6cf5\u7684\u5141\u8bb8\u51e0\u4f55\u5b89\u88c5\u9ad8\u5ea6\u4e0e\u591a\u65b9\u9762\u6761\u4ef6\u6709\u5173\uff0c\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n
<\/p>\n
\u5f0f\u4e2d\uff1a[Hg]\u2014\u6cf5\u7684\u5141\u8bb8\u51e0\u4f55\u5b89\u88c5\u9ad8\u5ea6\uff0cm\uff1b\uff08\u8ba1\u7b97\u7ed3\u679c\u4f9b\u8bbe\u8ba1\u65f6\u5229\u7528\uff0c\u5b9e\u9645\u5b89\u88c5\u9ad8\u5ea6\u9700\u4f4e\u4e8e\u5141\u8bb8\u5b89\u88c5\u9ad8\u5ea6\uff09<\/p>\n
pe\u2014\u5438\u6c34\u6c34\u9762\u538b\u529b\uff0cPa\uff1b\uff08\u4e3a\u5438\u6c34\u6c34\u9762\u7684\u5927\u6c14\u538b\uff0c\u6d77\u62d4\u8d8a\u9ad8\u5927\u6c14\u538b\u8d8a\u4f4e\uff09<\/p>\n
pv\u2014\u9971\u548c\u84b8\u6c7d\u538b\u529b\uff0cPa\uff1b\uff08\u4e0e\u6c34\u6e29\u6709\u5173\uff0c\u6c34\u6e29\u8d8a\u9ad8\uff0c\u9971\u548c\u84b8\u6c7d\u538b\u529b\u8d8a\u9ad8\uff09<\/p>\n
\u03c1\u2014\u6d41\u4f53\u7684\u5bc6\u5ea6\uff0ckg\/m3\uff1b<\/p>\n
g\u2014\u91cd\u529b\u52a0\u901f\u5ea6\uff0c9.81m\/s2\uff1b<\/p>\n
[NPSHr]\u2014\u6c34\u6cf5\u7684\u5141\u8bb8\u6c7d\u8680\u4f59\u91cf\uff0cm\uff1b\uff08\u4e0e\u6c34\u6cf5\u6027\u80fd\u6709\u5173\uff0c\u7531\u6c34\u6cf5\u5382\u5bb6\u63d0\u4f9b\uff09<\/p>\n
hw\u2014\u5438\u5165\u7ba1\u8def\u4e2d\u7684\u6c34\u5934\u635f\u5931\uff0cm\u3002\uff08\u4e0e\u5438\u6c34\u7ba1\u8def\u8bbe\u8ba1\u6709\u5173\uff0c\u7531\u8bbe\u8ba1\u4eba\u5458\u786e\u5b9a\uff09<\/p>\n
\u7531\u4e0a\u5f0f\u53ef\u77e5\uff0c\u6d77\u62d4\u8d8a\u9ad8\u3001\u6c34\u6e29\u8d8a\u9ad8\u3001\u5141\u8bb8\u6c7d\u8680\u4f59\u91cf\u8d8a\u5927\u3001\u8fdb\u6c34\u7ba1\u8def\u6c34\u5934\u635f\u5931\u8d8a\u5927\uff0c\u5141\u8bb8\u51e0\u4f55\u5b89\u88c5\u9ad8\u5ea6\u8d8a\u5c0f\u3002<\/p>\n
\u4e0d\u540c\u6d77\u62d4\u65f6\u7684\u5927\u6c14\u53ca\u5bf9\u5e94\u7684\u6c34\u5934\u9ad8\u5ea6\u89c1\u4e0b\u8868\uff1a<\/p>\n
\u6d77\u62d4\u9ad8\u5ea6 \n\uff08m\uff09<\/td>\n | \u5927\u6c14\u538b\u529b \n\uff08kPa\uff09<\/td>\n | \u6c34\u5934\u9ad8\u5ea6 \n\uff08m\uff09<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||
-600<\/td>\n | 110.85<\/td>\n | 11.3<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||
0<\/td>\n | 101.32<\/td>\n | 10.3<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||
200<\/td>\n | 99.08<\/td>\n | 10.1<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||
500<\/td>\n | 95.16<\/td>\n | 9.7<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||
1000<\/td>\n | 90.25<\/td>\n | 9.2<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||
1500<\/td>\n | 84.36<\/td>\n | 8.6<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||
2000<\/td>\n | 79.46<\/td>\n | 8.1<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||
3000<\/td>\n | 70.63<\/td>\n | 7.2<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||
4000<\/td>\n | 61.80<\/td>\n | 6.3<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||||||||
5000<\/td>\n | 53.95<\/td>\n | 5.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u4e0d\u540c\u6e29\u5ea6\u65f6\u6c34\u7684\u9971\u548c\u84b8\u6c7d\u538b\u5bf9\u5e94\u6c34\u5934\u9ad8\u5ea6\u89c1\u4e0b\u8868\uff1a<\/p>\n
|