年处理量15×104ta煤油冷却器的设计.docVIP

题目：年处理量15×104煤油冷却器的设计 学生姓名 学 号 指导教师 院 系 专业班级 设计时间 化学工程教研室制 摘 要 年处理量15×104煤油冷却器设计，煤油入口温度为140℃，出口温度为40℃；冷却水入口温度为30℃，出口温度为40℃。两流体温差大，为实现物料之间热量传递的节能选用了换热器。煤油走壳程，冷却水。的碳素钢关键词：； Abstract This topic is the design of the handling capacity of 15×104 t/a of kerosene cooler, kerosene entrance temperature of 140 degrees centigrade, the outlet temperature is 40 degrees centigrade; cooling water entrance temperature of 30 degrees centigrade, the outlet temperature is 40 degree Celsius. Two fluid temperature difference, to achieve energy-saving heat transfer between the materials. So the selection of the fixed tube plate heat exchanger. And the double, single shell and kerosene go shell cooling water, go pipe heat exchanger process. This design to determine the design scheme and material data, by estimating the heat transfer area to calculate process structure size, choose diameter of carbon steel , determined using the heat transfer tube of a total of 228 root and the inside diameter of the shell is 600 mm. and heat exchanger calculation, the final validation of the effective heat transfer coefficient, average temperature of 39.09 degrees centigrade, fluid flow resistance, area 19% margin and pressure drop are within a reasonable range can be obtained by calculation. The correctness of the design, for the cylinder, tube box, tube plate, baffle and flange. Other equipment calculation and selection, and carry out the necessary verification. Finally using CAD drawing software drawing assembly drawings and process flow chart. Keywords:Fixed tube plate; area margin; pressure drop 目 录 任务书 1 1. 概述 2 1.1 设计目的 2 1.2 换热器设备的在生产中作用及应用 2 1.2.1 浮头式换热器 2 1.2.2 2 1.2.3 U型管式换热器 2 1.3 列管换热器的特点 3 1.3.1 浮头式换热器 3 1.3.2 3 1.3.3 U型管式换热器 3 2 设计 4 2.1 确设计方案 4 2.1.1 选定换热器类型 4 2.1.2 选用流体流动空间及流速 4 2.3 流程叙述 4 2.4 估算传热面积 4 2.4.1 计算热负荷 4 2.4.2 计算冷却用水量 4 2.4.3 计算逆流平均温差 4 2.4.4 初选总传热系数K 5 2.4.5 估算传热面积 5 2.5 工艺结构尺寸 5 2.5.1 管径和管内流速 5 2.5.2 管程数和传热管数 5 2.5.3 平均传热温度差校正及壳程数 5 2.5.4