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管徑計算與確定

2014-08-30 12:22 作者:管理員14 來源:未知 瀏覽: 次 字號: 大 中 小

摘要:2. 1由常用流速計算管徑 對長度較短、管徑較小的管道，一般可由常用流速計算其管徑，再按工程設計規定的管子公稱通徑系列調整為實際內徑 在巳知通過管道的流量w和流速v的情況下，可用圖19.3一1的計算圖來查取管徑。其方法是:在流速坐標和流最坐標上分別找出

2. 1由常用流速計算管徑
      對長度較短、管徑較小的管道，一般可由常用流速計算其管徑，再按工程設計規定的管子公稱通徑系列調整為實際內徑
公式
      在巳知通過管道的流量w和流速v的情況下，可用圖19.3一1的計算圖來查取管徑。其方法是:在流速坐標和流最坐標上分別找出點A和B，通過A、B作直線，交管徑坐標于C，則C的數值即為管徑。

由流量w和流速v求管徑的計算圖
介質常用流速范圍介質常用流速范圍1介質常用流速范圍2
介質常用流速范圍3
介質常用流速范圍4
案例
公式及注解
最經濟管徑確定 (責任編輯：laugh521521)
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