当前位置:首页>> >>


年产90万吨原油板式塔设计.rar

收藏

资源目录
    文档预览:
    编号:20181030004741305    类型:共享资源    大小:2.91MB    格式:RAR    上传时间:2018-10-30
    尺寸:148x200像素    分辨率:72dpi   颜色:RGB    工具:   
    18
    金币
    关 键 词:
    年产 90 原油 板式 设计
    资源描述:
    齐 齐 哈 尔 大 学毕业设计(论文)题 目 年产 90 万吨原油板式塔设计 齐齐哈尔大学毕业设计(论文)I摘 要本文设计了一个常压精馏塔,目的是年处理90万吨大庆2号原油。本次设计共用34块浮阀塔板,塔距0.6m,塔径2.7m,塔高31.2m. 先进行工艺计算确定确定塔径,塔板数,塔板间距等。第二步利用水力学性能计算,确定塔的操作弹性等。第三步对塔的总体结构与局部结构的设计。第四步进行强度设计计算及校核。最后绘制各部分的图纸。精馏属于蒸馏的一中,蒸馏依据原理是混合物中各组分沸点(挥发度)的不同。其中重要的分离设备—常压塔的设计,是能否获得高收率、高质量油的关键。因此本次设计的基本方案是:初馏塔拔出石脑油,常压塔采取三侧线,常压塔塔顶生产汽油,三个侧线分别生产煤油,轻柴油,重柴油。在常压塔外侧为侧线产品设汽提塔。流程简单,投资和操作费用较少。原油在这样的蒸馏装置下,可以得到350-360℃以前的几个馏分,可以用作石脑油、汽油、煤油、轻柴油、重柴油产品,也可分别作为重整化工(如轻油裂解)等装置的原料。蒸余的塔底重油可作钢铁或其它工业的燃料。在某些特定的情况下也可以作催化裂化或加氢裂化装置的原料。 关键词:原油;常压精馏塔;物料衡算;热量衡算 齐齐哈尔大学毕业设计(论文)IIIAbstract The design of an atmospheric distillation column, the purpose of an annual processing of 900,000 tons of Daqing crude oil No. 2. The design sharing 34 float valve tray, tower from the 0.6m tower diameter 2.5m high tower 30.2m first process calculation to determine to determine the diameter of column, plate number, plate spacing. The second step hydraulic performance calculations to determine the operating flexibility of the tower. The third step of the overall structure and local structure of the tower design. The fourth step, the strength of design calculations and checking. Finally, draw the various parts of the drawings. Distillation are distillation, distillation in accordance with the principle of different boiling point (volatility) of each component in the mixture. Separation equipment - atmospheric tower design, the availability of high-yield, high-quality oil is the key. The design of the basic program: primary tower pull out the naphtha, atmospheric tower to take three lateral line, atmospheric Tata top producing gasoline, three lateral line production of kerosene, light diesel oil, heavy diesel oil. The outside of the atmospheric tower set for the lateral line product stripper. The process is simple, less investment and operating costs. Crude oil distillation device, you can get several of the 350-360 ° C before the fraction, can be used as naphtha, gasoline, kerosene, light diesel oil, heavy diesel oil products, respectively, as the restructuring of chemical (such as naphtha cracker) devices such as raw materials. Steamed more than the bottom of heavy oil can be used for steel or other industrial fuels. In certain circumstances could also serve as raw material for catalytic cracking Key words: Oil; Atmospheric distillation Tower; Material balance; Heat balance齐齐哈尔大学毕业设计(论文)IV目 录摘 要 ..............................................................................................................................IAbstract........................................................................................................................II第 1 章 绪论 ................................................................................................................11.1 选题的依据,意义和理论或实际应用方面的价值 .........................................11.2 本课题在国内外的研究现状 ............................................................................21.3 课题研究的内容及拟采用的方法 ....................................................................3第 2 章 工艺计算 .........................................................................................................42.1 参数计算 ............................................................................................................42.1.1 恩氏蒸馏 90~10%斜率 ................................................................................42.1.2 体积平均沸点 .............................................................................................42.1.3 立方平均沸点 ..........................................................................................4ct2.1.4 中平均沸点 .............................................................................................5m2.1.5 特性因数 K ..................................................................................................52.1.6 分子量 .........................................................................................................52.1.7 平均蒸发温度 .............................................................................................62.1.8 临界温度 .....................................................................................................72.1.9 临界压力,大气压 .....................................................................................72.1.10 焦点压力,大气压 ...................................................................................72.1.11 焦点温度 ...................................................................................................82.1.12 实沸点切割范围 .......................................................................................82.2 物料平衡 ............................................................................................................92.3 决定塔板数、塔顶压力和塔板压力降 ..........................................................102.3.1 选定塔板数 ...............................................................................................102.3.2 决定塔板压力降 .......................................................................................102.4 侧线及塔底的总汽提量 ..................................................................................112.5 常压精馏塔计算草图 ......................................................................................122.6 过汽化量 ..........................................................................................................132.7 计算汽化段温度和估计塔底温度 ..................................................................132.7.1 计算汽化段温度 .......................................................................................132.7.2 求汽化段油品在 353 的热焓 .........................................................13C2ch2.7.3 作平衡蒸发曲线及起热焓 ........................................................................142.7.4 取塔底温度 ...............................................................................................15齐齐哈尔大学毕业设计(论文)V2.8 参考同类装置的操作数据,先假定塔顶及各抽出侧线的温度 ...................152.9 作全塔热平衡并计算回流热 ..........................................................................152.10 确定流程 ........................................................................................................162.11 校核各侧线及塔顶温度 ................................................................................162.11.1 重柴油抽出层(第 27 层)温度校核 ....................................................162.11.2 轻柴油抽出层(第 18 层)温度校核 ....................................................182.11.3 煤油抽出层(第 9 层)温度校核 ..........................................................202.11.4 塔顶温度 .................................................................................................222.12 做全塔汽液负荷分布图 ................................................................................232.12.1 第 13 层塔板下气、液相负荷 ................................................................232.12.2 第 22 层塔板下气、液相负荷 ................................................................242.12.3 第 30 层塔板下气、液相负荷 ................................................................272.12.4 煤油抽出层塔板下气、液相负荷 ..........................................................292.12.5 轻柴油抽出层塔板下气、液相负荷 ......................................................312.12.6 重柴油抽出层塔板下气、液相负荷 ......................................................332.12.7 各层塔板汽液负荷间表 ..........................................................................352.12.8 画出本塔的气液负荷图(如下图) ......................................................36第 3 章 总体结构与局部结构的设计 .......................................................................373.1 浮阀类型 ..........................................................................................................373.2 塔板间距的选择 ..............................................................................................373.3 塔径计算 ..........................................................................................................373.3.1 计算塔板汽相空间截面积上最大的允许气体速度 ................................373.3.2 适宜的气体操作速度 ................................................................................383.3.3 计算气相空间截面面积及降液管面积 Fd................................................383.3.4 计算降液管内液体流速 Vd .......................................................................383.3.5 计算塔横截面积和塔颈 ............................................................................393.3.6 采用的塔径 ...............................................................................................393.3.7 设计的空塔气速 .......................................................................................393.4 浮阀数及开孔率计算 ......................................................................................393.4.1 计算浮阀孔的临界速度 ............................................................................393.4.2 计算塔板开孔率 .......................................................................................403.4.3 确定浮阀数 ...............................................................................................403.5 溢流堰及降液管的选择 ..................................................................................403.5.1 液体在塔板上的流动形式 ........................................................................403.5.2 决定溢流堰、降液管 ................................................................................403.5.3 溢流堰高度及塔板上的清液层高度的选择 ............................................41齐齐哈尔大学毕业设计(论文)VI3.5.4 液体在降液管内的停留时间及流速 ........................................................413.5.5 降液管底缘距塔板高度 ............................................................................413.6 塔体壁厚的确定 ..............................................................................................413.6.1 设计压力 ...................................................................................................413.6.2 选择材料 ...................................................................................................423.6.3 焊缝系数 ...................................................................................................423.6.4 确定壁厚附加量,设计壁厚,最小壁厚,名义厚度 ............................423.7 塔器总高度 ......................................................................................................423.7.1 选择塔体和裙座材料 ................................................................................423.7.2 塔顶空间 ...................................................................................................433.7.3 塔底空间 ...................................................................................................433.7.4 封头高度 H 封 .............................................................................................433.8 适宜操作区和操作线 ......................................................................................443.8.1 雾沫夹带线 ...............................................................................................443.8.2 淹塔线 .......................................................................................................443.8.3 降液管超负荷界线 ....................................................................................453.8.4 泄露线 .......................................................................................................453.8.5 做图汇总图 ...............................................................................................463.9 水力计算 ..........................................................................................................463.9.1 塔板总压力降 ...........................................................................................463.9.2 雾沫夹带量 ...............................................................................................473.9.3 泄漏量 .......................................................................................................483.9.4 淹塔情况 ...................................................................................................483.9.5 降液管负荷 ...............................................................................................48第 4 章 水力计算 .......................................................................................................49第 5 章 强度设计计算及校核 ...................................................................................505.1 塔体重量计算 ..................................................................................................505.1.1 塔体及裙座质量 m1 ...................................................................................505.1.2 塔内质量 M2,塔器保温层重量 ...............................................................505.1.3 平台及扶梯重量 .......................................................................................505.1.4 塔斧中物料重量 .......................................................................................505.1.5 塔盘上物料重量 .......................................................................................515.1.6 人孔法兰接管等附件的质量 ....................................................................515.1.7 设备中充水质量 .......................................................................................515.1.8 操作质量 ...................................................................................................515.1.9 塔的最大质量,塔最小质量 ....................................................................51齐齐哈尔大学毕业设计(论文)VII5.2 自振周期计算 ..................................................................................................515.3 地震载荷和地震弯矩计算 ..............................................................................525.4 风载荷与风弯矩计算 ......................................................................................525.5 筒体应力校核 ..................................................................................................555.6 裙座应力校核 ..................................................................................................565.6.1 裙座底截面的组合应力 ............................................................................565.6.2 裙座检查孔和较大管线引出孔截面处组合应力 ....................................565.6.3 裙座搭接焊缝处的校核 ............................................................................575.7 地脚螺栓设计 ..................................................................................................585.8 基础环的设计与计算 ......................................................................................585.8.1 基础环的内、外径 ...................................................................................5885.8.3 基础环的截面系数 .................................................................................585.9 筋板设计与计算 ..............................................................................................595.10 侧线管线计算 ................................................................................................605.10.1 重油抽出管 .............................................................................................605.10.2 重柴油抽出管 .........................................................................................605.10.3 轻柴油抽出管 .........................................................................................605.10.4 煤油抽出管 .............................................................................................615.10.5 汽油抽出管 .............................................................................................615.10.6 塔顶回流入口管 .....................................................................................615.10.7 煤油汽提管 ..........................................
    展开阅读全文
    1
      金牌文库所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。
    0条评论

    还可以输入200字符

    暂无评论,赶快抢占沙发吧。

    关于本文
    本文标题:年产90万吨原油板式塔设计.rar
    链接地址:http://www.gold-doc.com/p-255616.html
    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服客服 - 联系我们
    [email protected] 2014-2018 金牌文库网站版权所有
    经营许可证编号:浙ICP备15046084号-3
    收起
    展开