【正文】
壓力損失即工作壓力:管壁厚度計(jì)算公式: = 按標(biāo)準(zhǔn)選7mm 吸入管路厚度計(jì)算假設(shè)吸入管管壁厚度為6mm,試算過程如下: =由于閥門突然關(guān)閉,是流速變動(dòng),從而引起壓力變動(dòng),計(jì)算公式為: 壓力損失即管道工作壓力:管壁厚度計(jì)算公式: = 按標(biāo)準(zhǔn)選6mm 排出管路厚度計(jì)算假設(shè)排出管管壁厚度為6mm,試算過程如下: =由于閥門突然關(guān)閉,是流速變動(dòng),從而引起壓力變動(dòng),計(jì)算公式為: 壓力損失即工作壓力:管壁厚度計(jì)算公式: = 按標(biāo)準(zhǔn)選10mm因此,0柴油、10柴油集油管選2737 mm,輸油管選2196 mm,排出管路選15910 mm。 D—平均管徑,m; E—管材彈性模數(shù),Pa; —管壁厚度,m; g—重力加速度;m/s2 —液體的密度。根據(jù)油庫(kù)中經(jīng)營(yíng)品種,將油品分為五組,分組如下:第一組:90汽油,93汽油第二組:200溶劑油第三組:0柴油,10柴油第四組:20農(nóng)用柴油第五組:燈用煤油代入數(shù)據(jù)得:① 第一組:90、93汽油吸入管路經(jīng)濟(jì)流速V吸=,吸入管路的管徑: 按標(biāo)準(zhǔn)選擇DN200mm90、93汽油排出管路經(jīng)濟(jì)流速V排=,排出管路的管徑: 按標(biāo)準(zhǔn)選擇DN150mm② 第二組:200溶劑油吸入管路經(jīng)濟(jì)流速V吸=,吸入管路的管徑: 按標(biāo)準(zhǔn)選擇DN200mm200溶劑油排出管路經(jīng)濟(jì)流速V排=,排出管路的管徑: 按標(biāo)準(zhǔn)選擇DN150mm③ 第三組:0柴油,10柴油吸入管路經(jīng)濟(jì)流速V吸=,吸入管路的管徑: 按標(biāo)準(zhǔn)選擇DN200mm0柴油,10柴油排出管路經(jīng)濟(jì)流速V排=,排出管路的管徑: 按標(biāo)準(zhǔn)選擇DN150mm④第四組:20農(nóng)用柴油吸入管路經(jīng)濟(jì)流速V吸=,吸入管路的管徑: 按標(biāo)準(zhǔn)選擇DN200mm20農(nóng)用柴油排出管路經(jīng)濟(jì)流速V排=,排出管路的管徑: 按標(biāo)準(zhǔn)選擇DN150mm⑤第五組:燈用煤油吸入管路經(jīng)濟(jì)流速V吸=,吸入管路的管徑: 按標(biāo)準(zhǔn)選擇DN200mm燈用煤油排出管路經(jīng)濟(jì)流速V排=,排出管路的管徑: 按標(biāo)準(zhǔn)選擇DN150mm 各種油品標(biāo)準(zhǔn)管徑的選擇根據(jù)《石油庫(kù)設(shè)計(jì)手冊(cè)》選取標(biāo)準(zhǔn)管徑,按規(guī)定集油管比吸入管大一個(gè)級(jí)別。4)氣象資料:油罐所在地最冷月大氣月平均最低溫度為-2℃。s relative roughness e (e = mm) in this design, can according to the size of the Reynolds number, the oil flow in pipeline, calculated the hydraulic friction coefficient. Using darcy formula, can respectively calculate the crane each oil pipe, tubing, suction and discharge pipe of the friction loss, friction loss and the partial sum total can get all kinds of oil pipeline hydraulic friction loss ∑ h. Finally, according to the oil library process design manual tubing design and calculation result set.Key words: Economic flow rate Business flow Pipe diameter Pipe wall thickness Hydraulic frictionII 重慶科技學(xué)院本科生課程設(shè)計(jì) 目錄目錄摘要 I1 設(shè)計(jì)參數(shù)及基礎(chǔ)數(shù)據(jù) 1 1 12 每種油品管徑的確定 3 業(yè)務(wù)流量 3 經(jīng)濟(jì)流速的選取 3 管徑的計(jì)算 4 各種油品標(biāo)準(zhǔn)管徑的選擇 63 每種油品管線壁厚的確定 7 7 7 200溶劑油的管線壁厚 8 集油管路厚度計(jì)算 8 吸入管路厚度計(jì)算 9 排出管厚度計(jì)算 9 0柴油、