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釜體工況及材質(zhì)設計

來(lái)源: 時(shí)間:2013-08-09 10:40:02 瀏覽次數:

通過(guò)用戶(hù)提供的工況.在參照GB150-1998《鋼制壓力容器》確定釜體內設計壓力位工作壓力的1.1倍,即設計壓力P,為0.2x1.1=0.22MPa設計溫度依據夾套選取了t,=164'C,夾套依據用戶(hù)使用過(guò)程中的蒸汽的最高溫度查閱在相應溫度下的飽和蒸汽壓為0.6MPa,
通過(guò)用戶(hù)提供的工況.在參照GB150-1998《鋼制壓力容器》確定釜體內設計壓力位工作壓力的1.1倍,即設計壓力P,為0.2x1.1=0.22MPa設計溫度依據夾套選取了t,=164'C,夾套依據用戶(hù)使用過(guò)程中的蒸汽的溫度查閱在相應溫度下的飽和蒸汽壓為0.6MPa,故我選取了夾套設計壓力為P:=O.6MPa,設計溫度為tZ164'C,焊接接頭系數CD取0.85.
3、不銹鋼反應釜材質(zhì)
由于用戶(hù)單位提供的介質(zhì)具有腐蝕性,通過(guò)與用戶(hù)溝通介質(zhì)的腐蝕性及對材質(zhì)的焊接性的把握,選取了釜體結構采用OOCrl7Ni14Mo2,厚度負偏差Cr-0.8mm.腐蝕余量C,=Omm。通過(guò)查詢(xún)GB150-1998《鋼制壓力容器》不銹鋼反應釜 中材料的設計溫度下許用應力與其試驗溫度許用應力通過(guò)插值法可以算OOCrl7Ni14Mo2材質(zhì)試驗溫度許用應力[司=118Va.設計溫度許用應力[。]=114.48MPa.試驗溫度下屈服點(diǎn)。,=177MPa,夾套采用Q235-B材質(zhì),厚度負偏差‘=0.8mm.腐蝕余量C,=1mm。其試驗溫度許用應力【司=113MPa,設計溫度許用應力[司=110.76MPa,試驗溫度下屈服點(diǎn)。,=235MPae
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