【正文】 沈陽化工大學(xué)科亞學(xué)院 本科畢業(yè)設(shè)計 題 目： 流量為 200t/h 雙管程固定管板式換熱器 專 業(yè)： 過程裝備與控制工程 班 級： 1201班 學(xué)生姓名： 宋雅詩 指導(dǎo)教師： 湯方麗 論文提交日期： 2021 年 月 日 論文答辯日期： 2021 年 6 月 6 日 畢業(yè)設(shè)計（論文）任務(wù)書 過程裝備與控制工程 1201 班 學(xué)生： 000 畢業(yè)設(shè)計（論文）題目： 流量為 200t/h雙管程固定管板式換熱器 畢業(yè)設(shè)計（論文）內(nèi)容： 有關(guān)換熱器綜述一篇； 計算書說明書一份； 繪制工程圖折合 A1 號圖四張以上； 畢業(yè)設(shè)計（論文）專題部分： 固定管板式換熱器 起止時間： 2021 年 12 月 — 2021 年 6 月 指導(dǎo)教師： 簽字 年 月 日 課題名稱 流量為 200t/h雙管程固定管板式換熱器 設(shè)計者 宋雅詩 圖號 GK312202021801 設(shè)計參數(shù) 管口表 容器類別 符號 公稱尺寸 用途或名稱 參數(shù)名稱 殼程 管程 a 450 進(jìn)油管 工作壓力 MPa 2 b 450 出油管 設(shè)計壓力 MPa c 200 熱水出口 工作溫度℃ 25 90 d 設(shè)計溫度℃ 150 95 e 20 放氣口 介質(zhì) 油 水 f 20 放氣口 介質(zhì)特性 h 200 冷水進(jìn)口 推薦材料 Q345 20鋼 g 20 排液口 腐蝕余量 mm 2 m 20 排液口 焊接接頭 系數(shù) 程數(shù) 1 2 傳熱面積㎡ 465 465 換熱管 推薦尺寸 管子與管板 連接方式 強度焊接 強度焊接 設(shè)計參數(shù)： 殼程：殼程介質(zhì)為熱油，由 25℃加熱到 70℃； 管程： 管程為水，入口溫度為 160℃，出口溫度為 90℃；流量為 200t/h 結(jié)構(gòu)為固定管板式換熱器 內(nèi)容摘要 本設(shè)計為固定管板式換熱器，由管箱、殼體、管板、管子等零部件組成。其結(jié)構(gòu)較緊湊，排管較多，在相同直徑情況下面積較大制造較簡單。本設(shè)計采用單殼程，雙管程。管程工作壓力 2MPa，工作溫度 90攝氏度，介質(zhì)為水。殼程工作壓力 ，工作溫度 70攝氏度，介質(zhì)為油。 固定管板式換熱器的設(shè)計包括：管子的規(guī)格和排列方式、圓筒、封頭、管板的材料選擇及厚度設(shè)計，拆流板、防沖板的選擇等。首先管子的選擇是以清洗方面及合理使用管材為原則。管子在管板上的排列方式為三角形排列。因為三角形排列時，管板的強度高、流體短路機(jī)會 少，且相同管程內(nèi)可排列更多的管子。殼體厚度計算式是由圓筒薄膜應(yīng)力準(zhǔn)則推導(dǎo)出的。其最小壁厚應(yīng)不小于封頭內(nèi)徑的 %。管板是管殼式換熱器中最重要的部件之一，在選材時除力學(xué)性能外，還應(yīng)考慮流體的腐蝕性的影響。在計算厚度時，要在滿足強度要求的前提下，盡量減少管板的厚度。拆流板最常用的為圓缺型擋板，切去的弓形高度一般取外殼內(nèi)徑的 20%—— 25%。 關(guān)鍵字： 換熱器 管板 Abstract Change a hot machine, is hot parts of calorieses of the fluid deliver to the equipments of cold fluid, and then call a heat the hot machine is the in general use equipments of chemical engineering, petroleum, power and food and other many industrial sections, occupy an important position in the in the chemical engineering in change hot machine as heating apparatus, water cooler, congealed machine, evaporate a machine and again Fei machine etc., apply more extensively. This design topic floats a type to change for the 105 ts/h vaporwater for the discharge hot machine, float a type to change hot machine of a carry to take care of plank and hull body fix, but another one the tube plank carrying can float in the hull freedom inside the body, hull body and control free to inflation, past be two difference in temperatures that lie quality more big, control to produce a difference in temperature in response to the dint with of hull bodies a head to carry to design can dismantle structure, making to control can easily insert or draw out a hull body.(Can also design can not dismantle of).Fix, cleaned to provide convenience for check like should change hot machine structure more plicated, and float to carry a small cover can not know to reveal a circumstance while operating, consequently need to specially notice it to seal pletely while installing. The floating the advantage that a type changes a hot machine can draw out for controling and clean a tube, hull distance by convenience。Lie a quality difference in temperature to be free from restriction。Can under the heat, high pressure work, the general temperature is smaller than to equal 450 degrees, the pressure is smaller than to equal 6,400,000,000,000 Pas。Can used for knotting the dirt more serious situation。Can used for taking care of a distance to easily decay weakness leaks for being small to float inside easy occurrence。Metal material consumes to have great capacity, the cost is 20% in height。The structure is plicated. Compute in the traditional craft in include to transmit heat an area calculation, spread a calories calculation and transmit heat coefficient to really settle and change hot path inside the tube and change hot tube model number of choice, and transmit heat coefficient, press to decline and checking of wall calculate etc. problem. In strength pute win main discussion of is a tube body, tube box and head, take care of plank thickness calculation and fold to flow plank, method orchid and mat a slice and connector and, box off the design of zero partses like plank,etcs, also need to carry on some strength pit in the to consider floating path Do outside a tube knothole while 39。s outside path39。s turn to should be smaller than path Di inside the hull body, generally remend float mural the cleft inside a tube plank and hull body b 1=3~5 this, after being the hook turn of floating a to tore down, can immediately will control from the hull body inside draw order to in carry on check to fix, the cranium just can carry on assemble after controling to pack into, so should consider promising to float necessary space for cranium to assemble in the design. This design is according to the GB151 《 tube hull the type change hot machine 》 and the GB150 《 the steel system pressure container 》 the hot machine is in each realm of work, agriculture should carry very extensively, in the daily life transmit heat an equipments also everywhere it is thus clear that, is one of indispensable craft equipmentses. Key word: Change a hot machine。 Float to take care of plank。 Transmitheat a calculation。 The strength school checks 目 錄 第一章 綜述 ............................................. 1 引言 ................................................ 1 ................................................. 2 ................................................. 3 ..................................... 3 流道的選擇 ....................................... 3 操作強化 ......................................... 4 ......................... 4 第二章 工藝計算說明書 .......