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管道設計條件和設計標準

2014-08-30 11:55 作者:管理員14 來源:未知 瀏覽: 字號:

摘要:1.1 設計條件 管道設計應根據壓力、溫度、流體特性等工藝條件,并結合環境和各種載荷等條件進行。 1. 1. 1 設計壓力確定 一條管道及其每個組成件的設計壓力,不應小于運行中遇到的內壓或外壓與很度相偶合最嚴重條件下的壓力。最嚴重條件應為強度計算中管道組

1.1 設計條件
      管道設計應根據壓力、溫度、流體特性等工藝條件,并結合環境和各種載荷等條件進行。
1. 1. 1 設計壓力確定
      一條管道及其每個組成件的設計壓力,不應小于運行中遇到的內壓或外壓與很度相偶合最嚴重條件下的壓力。最嚴重條件應為強度計算中管道組成件需要最大厚度及最高公稱壓力時的參數。
1.1.2 設計溫度確定
       管道的設計溫度應為在管道運行時.壓力和溫度相偶合的最嚴重條件下的溫度。對于0C以下的管道,應考慮流體及環境溫度的影響,設計溫度應取低于或等于管道材料可達到的最低溫度。
1.2設計基準  
     1 )管道組成件的壓力-溫度參數值應符合下列規定:
      對于只標明公稱壓力的組成件,包括閥門、管件等,除另有規定外,在設計溫度下的許用壓力
公式

(責任編輯:laugh521521)
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