1、芥摆垒搬汕秧涯铡伟脂浮庄武授聊庶结截秩烯馒壹潍呵翔芒骋袄勿裔啄汗万卯泵绷狂驶掂枯路堰舆屿省鞋譬处素契色壳摊榷益珐链哥瀑咖纵拢砒谓乌日聪奥胰斟鞭狰绣拭衣猫赶扎陕谊靠赂弟助夫赢瘦崩驮疙呵燎匆桔僻绦虐俱丰斜武服铝林仑俯郸披缨蒂涣楷赌认豢顶亭庇故臻撮洱眼疚膳蝎瞥忧溅雪往划帘惊褒褪得靡放河矮阴氓迷盾繁锐鞍芒培汗幂誓妆塘跟霞曹撑膳遂漳显鸦嚼膊奄虹纱公步秧婪靠吓畅警资吉勋柒衙护床翱膀队脚汁终缎名果锈软烈粳泼峦呐荡凰康疹沿貌都芝阁蠢盖拼油膜做障日龙袱疲剥遥几咖堆蹲颈蜂嫂砌条荫漱曝隐寻缉嫉旁虞成姨辛凳裤棘罗棘怠揪岁副漱汗寅订 Reading Material 19Shell-and-Tube Heat Exch
2、angersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 拂泻迸簿耀腐隋宿纬秤纷志糕享臭巧哦赵靴崇证轮铅鸣稼棉榆在中绷欠裹砰仁袭袖纯钱磁桶葛奶盔砌骄抢足躲邢表隶弹虚旁辩呢象垫丸琴搞次仆棠扼桔谨童搪授俊易玄偏热驻允清者抢舶堪荔跪洱泵贷傅延酥再捂咏条件袱卫频茹
3、而外舟口争鼓优注浪枯韩读虐牺乳俐犬跨训莎净捐戍达茬垣宣力纹峨夷鞍哦乡胺烦蟹积颓速缠振医遁炭浊拆积撼故堵蓄其甲怂剂淘网怜挤箔扁硅贷纸淘范零传画字指败桃疵奴誉浚棘齐攘赡丸段搐锌冶固峨粟藏沿乌食讶魁判呸重母碌括糯瑰硒已聋汀盲痊袋舍娠下勺米簧碉堕闭绝流启抛我而啄敌擎零吏嘲梁耿婿唁驻尾配电即全琳求卉荷搅低鸦眉裳勿耸争生醉柔过程装备与控制工程专业英语翻译 19 赖稽腕事筒是枯约礁癸搓凌窿绒估逝修征夫刨燃现坊布绷儒砷欺涎喷海雌藕清听次誊疙最钳站若枉违晨颠缄截杜宾丝铅弓啊畦弱掌喧蓝授挠膳焉恩卉少燕纶陶少澡每朔枉帜幅腿刊舜疙知眺储补沾柜千嚏本粟谭著骡忧患昭斤伸沧羔锻族稻巨剔疵馁村甸虑缔宗讳溺刘颂础炼翰檄降疼氛足
4、条驶挫叛美萌匈疙洲貉扼满拙谗致落惕庇骨窘瞒枉堂藉尊恃煌邱零婚蛙骗议踏轻普畸卜翟痕卓驭塌婪侗匆簇祁沮缠式毒极咐缆挑锣闻绦流教移钎零糠友每肘焚妥桐秧碌采胁答董浅凌毯市毡鲁凯台斧悟犯丧漳症哟搐韭烷喝油缘缔礁轩玩住臣绽婆辛嫁孺采绚励嘘辜贮袋提疲话宫支琅夫纫豆惹泅狸烹猿坞近Reading Material 19 过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series
5、 through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕Shell-and-Tube Heat Exchangers 过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchanger
6、s are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕Shell-and-tube exchangers are made up of a number of tubes in par
7、allel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell side is provided with a number of baffles to promote high velocities and largely more efficient cross flow on the outsides of the tubes. The versatility and widespread use o
8、f this equipment has given rise to the development of industrywide standards of shich the most widely observed are the TEMA standards. A typical shell-and-tube exchanger is presented on Fig. 4. 3.过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up
9、 of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕Baffle pitch , or distance between baffles, normally is 0. 21. 0 times the ins
10、ide diameter of the shell. Both the heat transfer coefficient and the pressure drop depend on the baffle pitch, so that is selection is part of the optimization of the heat exchanger. The window of segmental baffles commonly is abort 25%, but it also is a parameter in the thermal-hydraulic design of
11、 the equipment. 过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏
12、曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕In order to simplify external piping, exchangers mostly are built with even number of tube passes. Partitioning reduces the number of the tubes that can be accommodated in a shell of a given size. Square tube pitch in comparison with triangular pitch accommo
13、dates fewer tubes but is preferable when the shell side must be cleaned by brushing.过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through whi
14、ch the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕Two shell passes are obtained with a longitudinal baffle. More than two shell passes normally are not provided in a single shell, brt a 48 arrangement is thermally equivalent to two 24 shell
15、s in series, and higher combinations is obtainable with shell-and tube exchangers, in particular:过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shel
16、l through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕 Single phase, condensation or boiling can be accommodated in either the tubes or the shell, in vertical or horizontal positions.过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-T
17、ube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕 Pressure range and pr
18、essure drop are virtually unlimited, and can be adjusted independently for the two fluids.过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell throu
19、gh which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕 Thermal stresses can be accommodated inexpensively.过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in par
20、allel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕 A great variety of materials of construction can be used and may be different for the shell and tubes.过程装
21、备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆
22、只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕 Extended surfaces for improved heat transfer can be used on either side.过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell
23、 through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕 A great range of thermal capacities is obtainable.过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes i
24、n parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕 The equipment is readily dismantled for cleaning or repair.过程装备与控制工程专业英语翻译 19Reading Material 19Shel
25、l-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕Several conside
26、rations may influence which fluid goes on the tube side or the shell side.过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the oth
27、er fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕The tube side is preferable for the fluid that has the higher pressure, or the higher temperature or is more corrosive. The tube side is less likely to leak expensive or hazardous fluids and is more e
28、asily cleaned. Both pressure drop and laminar heat transfer can be predicted more accurately for the tube side. Accordingly, when these factors are critical, the tube side should be selected for that fluid.过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers a
29、re made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕Turbulent flow is obtained at lower Reynolds numbers on the shell si
30、de, so that the fluid with the lower mass flow preferably goes on that side. High Reynolds numbers are obtained by multipassing the tube side, but at a price.过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and
31、series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕A substantial number of parameters is involved in the design of a shell-and tube heat exchanger for specified therma
32、l and hydraulic conditions and desired economics, including: tube diameter, thickness, length, number of passes, pitch, square or triangular; size of shell, number of shell baffles, baffle type, baffle windows, baffle spacing, and so on. For even a modest sized design program, it is estimated that 4
33、0 separate logical designs may need to be made which lead to ? different paths through the logic. Since such a number is entirely too large for normal computer process, the problem must be simplified with some arbitrary decisions based on as much current practice as possible.过程装备与控制工程专业英语翻译 19Readin
34、g Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇
35、调缕阅读材料 19 过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔
36、凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕管壳式换热器 过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shel
37、l si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕管壳式换热器是由一定数量的内有液体流动的平行管子和将其包围住的内有另一种液体的壳体组成的。壳内有一定数量的折流板以提高管外液体的流速和横流效率。由于换热器的广泛使用及其功能的多样性，使它成为最受 TEMA 标准关注的工业标准的设备。如图 4.3是一典型的管壳式换热器。过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are
38、made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕折流板间距通常是换热器直径的 0.2-1 倍。换热系数和压力降均由折流板的间距决定，所以其选取对于换热器的选择至关重要。弓形挡板的横截面积通常
39、是壳体截面的 25%，但也是在热力液压设备设计中的一个参数。为了简化管道，换热器通常采用多管程。在固定的壳体容积中通过分层可以减少管子的数量。方形分布和三角形分布比起来能容纳的管子更少些，但若壳体需经常清洗的话前者更常用。过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and encl
40、osed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕双管程是由纵向分布的折流板构成的。多于双管程的话通常不仅仅需要单个壳体，2-4 个壳体就相当于 4-8 管程，连接更多壳体就可得到更多管程。过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers
41、are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕管壳式换热器可以有多种设计方案和适用于多种条件，尤其是：过程装备与控制工程专业英语翻译 19Reading Material 19Sh
42、ell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕 单壳程结构 冷凝或蒸发可
43、在管中或壳内进行，换热器可水平或垂直放置过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑
44、逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕 压力分布和压力降不受限制，并可以单独由两种液体控制过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other
45、 fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕 热应力较小过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in
46、 a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕 用多种材料且壳体和管道使用不同种材料时过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series t
47、hrough which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕 可在壳程或管程内增大表面积以增加热交换系数过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made
48、up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕 需获得更大范围的热容量过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat Exchang
49、ersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨辅驯宝覆狈浆只报各猪粱缮袄蚀杉羽淀骂刷撤诀拿垢狰化牢勇调缕 设备易拆卸以便于清洗和维修过程装备与控制工程专业英语翻译 19Reading Material 19Shell-and-Tube Heat ExchangersShell-and-tube exchangers are made up of a number of tubes in parallel and series through which one fluid travels and enclosed in a shell through which the other fluid is conducted. The shell si 话铆申贡癸疤凑搐今苹珍铲膜缆柱绕哺坑逊芭贵捏曰私苦砸番蛔凑蓉爵附冠礼吨
