【正文】 The tubular heat exchanger applied more widely. Now, it is regarded as a kind of traditional standard heat exchange equipment widely used in many industrial departments, especially used in chemical, petroleum, energy equipment transfer equipment is still in a dominant position. Reeflex condenser is a change of thermal equipment, is the important equipment in the production. It is the role of the relatively low temperature water to take away the heat generated by the other device, so as to make part of the temperature is maintained at the required a production level, so that the normal operation of the equipment. Therefore, the production design of circulating water cooler of enterprise is very important, it is likely to affect the economic losses of enterprises, which is of great practical significance to the design. This design is for the study of fixed tube plate heat exchanger on the tube shell type. A fixed tube plate heat exchanger, belonging to the shell and tube heat exchanger, is the use of the high temperature fluid and wall temperature fluid of convective heat transfer and heat transfer between the material. In this design, the GB 1502020 , GB 1511999 pressure vessel shell and tube type heat exchanger standards and fixed pressure vessel safety technology supervision regulation as the basis, and with reference to Design Handbook heat exchanger, the scheme is demonstrated, to determine the physical material parameters, bined with the working conditions, select the type of heat exchanger. According to the design task, determine the process parameters on the heat transfer area, the total heat transfer coefficient, and heat transfer area, wall temperature and pressure drop calculation. Then the mechanical design based on process parameters, mechanical design including the tube, tube box, tube plate, baffle, head, tube heat exchanger, saddle and other parts, such as the bar, fixed pitch pipe calculation and selection, and calculated the strength necessary, finally using AutoCAD drawing fixed tube plate heat exchanger the assembly diagram and parts diagram, and writing a specification. [keyword]:tube sheet,heat exchange tube. 目 錄 1 概述 ..........................................................................................................................1 選題的根據(jù)和意義 ...........................................................................................1 本設(shè)計(jì)的目的和要求 .......................................................................................2 國(guó)內(nèi)外現(xiàn)狀和發(fā)展趨勢(shì) ...................................................................................2 2 管殼式換熱器的分類和選型 .................................................................................3 分類 ...................................................................................................................3 任務(wù)安 排 .............................................................................................................6 選擇換熱器類型 .................................................................................................6 3 換熱器的工藝設(shè)計(jì) ..................................................................................................7 工藝計(jì)算 ...........................................................................................................7 流徑選擇 ....................................................................................................7 確定物性參數(shù) ............................................................................................7 傳熱平均溫度差的計(jì)算 ............................................................................8 計(jì)算傳熱面積 ............................................................................................8 計(jì)算工藝結(jié)構(gòu)尺寸 ....................................................................................9 換熱器核算 .....................................................................................................15 傳熱能力核算 ..........................................................................................15 壁溫核算 ..................................................................................................18 換熱器內(nèi)流體的流動(dòng)阻力 ......................................................................19 換熱器主要結(jié)構(gòu)尺寸和計(jì)算結(jié)果 .................................................................21 4 換熱器的機(jī)械設(shè)計(jì) ...............................................................................................22 計(jì)算筒體厚度 .................................................................................................23 筒體材料的選擇 ......................................................................................23 筒體厚度 ..................................................................................................23 計(jì)算管箱短節(jié)、封頭厚度 ..............................................................................24 管箱的結(jié)構(gòu)形式 ......................................................................................25 管箱結(jié)構(gòu)尺寸 ..........................................................................................25 管箱短節(jié)及封頭厚度 ..............................................................................26 開孔補(bǔ)強(qiáng)的校核 .............................................................................................26 管箱短節(jié)開孔補(bǔ)強(qiáng)的校核 ......................................................................28 筒體節(jié)開孔補(bǔ)強(qiáng)的校核 ..........................................................................28 排氣口、排液口開孔補(bǔ)強(qiáng)的校核 ...........................................................30 管板設(shè)計(jì) ...........................................................................................................31 換熱管與管板的連接 ................................................................................31 管板與殼體的連