通化硕抠家具有限公司

    高級檢索

    消防給水用鋼管設(shè)計問題的探討

    Discussion on Design of Steel Pipe for Fire Water Supply

    • 摘要: 消防給水用鋼管設(shè)計中存在未標(biāo)注鋼管的用鋼牌號、公稱直徑DN對應(yīng)的外徑D、管道壁厚等信息缺失問題，結(jié)合相關(guān)規(guī)范和手冊，對用鋼牌號的標(biāo)注方法、管道標(biāo)準及外徑系列選擇和管道壁厚的計算方法提出解決辦法和建議。分析認為：設(shè)計圖應(yīng)標(biāo)明鋼管標(biāo)準要求、材料（含鋼牌號）要求，并列出管道公稱尺寸DN、外徑D、公稱壁厚δ對照表；采用輔助軟件進行水力計算時應(yīng)校核該軟件采用的管道標(biāo)準系列、壁厚是否和設(shè)計的一致；應(yīng)了解當(dāng)?shù)毓懿氖袌龉┴浤芊駶M足設(shè)計要求；系統(tǒng)壓力1.20～2.00 MPa時，DN≤65 mm的管道及其他工作壓力不大于1.20 MPa的管段仍然可以采用普通鋼管，以降低工程造價。

       

      Abstract: In the design of the steel pipe for fire water supply, some data are missing, including the steel type, the outside diameter D that is corresponding to the nominal diameter DN, and the pipe wall thickness, etc.Based on related specifications and technical manuals, solution methods and suggestions are proposed to determine the marking method for the steel type, the pipeline standard, and the pipe OD series as well as the calculation method for the pipe wall thickness.It is regarded via the analysis that the design drawing should indicate the standard and material(including the steel type) as required for the steel pipe, the check list of nominal size DN, outside diameter D and nominal W.T.δ of the pipe;in case of computing the water power with some aid software, it must be done to check whether the pipeline standard series and wall thickness as adopted by the software are in compliance with those as designed;it should be foud out if the local supply of the pipes is satisfactory to the design requirements;when the system pressure is 1.20~2.00 MPa, for pipeline with DN ≤ 65 mm and other pipeline sections with working pressure no more than 1.20 MPa, ordinary steel pipes are allowed to be used in order to reduce the project costs.

       

      • HTML全文

    /

    返回文章
    返回