![]() |
發布時間: 2012-10-31 15:30
正文摘要:流道截面為矩形時,縱向旋渦的流阻較大,H和效率相對較低,但Q較大。流道為半圓形斷面時,H和效率相對較高,但Q較小。 閉式旋渦泵效率較高,可達35%一45%。液流是從葉輪外緣進 ... |
|關于我們|網站地圖|油氣儲運網
( 魯ICP備11007657號-3 )
GMT+8, 2025-9-5 20:54 , Processed in 0.021292 second(s), 14 queries , Gzip On, MemCached On.
Powered by Discuz! X3.5
Copyright © 2001-2023, Tencent Cloud.