板式换热器选型计算书

1、共12页，第1页1、目录2、选型公式3、选型实例一（水一水）4、选型实例二（汽一水）5、选型实例三（油一水）6、选型实例四（麦芽汁一水）7、附表一（空调采暖，水一水）8、附表二（空调采暖，汽水）9、附表三（卫生热水，水一水）10、附表四（卫生热水，汽一水）11、附表五（散热片采暖，水一水）12、附表六（散热片采暖，汽一水）101112共12页，第2页板式换热器选型计算1、选型公式a、热负荷计算公式：Q=c旭t其中：Q然负荷（kcal/h）、c介质比热（Kcal/ Kg. C）、m介质质量流量（Kg/h）、t一介质进出口温差（C）（注：m t、c为同侧参数）水的比热为1.0 Kcal/ Kg.

2、Cb、换热面积计算公式：A=Q/K. tm其中：A换热面积（宿）、K一传热系数（Kcal/ m2. C） tl对数平均温差K值表:介质水一水蒸汽-水蒸汽-油冷水一油油一油空气一油K250045001300200070090050070017535025 58注：K值按经验取值（流速越大，K值越大。水侧板间流速一般在0.20.8m/s时可按上表取值，汽侧板间流速一般在15m/s以内时可按上表取值）其中V板间流速（m/s）、q-体积流量（注意单位转换，m/h - m3/s）、As一单通道截面积（具体见下表）、n一流道数2、板式换热器整机技术参数表:设备一靠“土一也一BR0.05BR0.1BR0.2

3、5BR0.3BR0.35BR0.5BR0.7BR1.0BR1.35最高使用压力Mpa2.5使用温度范围C-19200装机最大换热面积515306580120220350500最大流量m/h1025401201502504306501730标准接口法兰DN25406580100125150250350单板换热面积0.0510.1090.2380.3080.3750.550.711.001.35平均流道截面积m0.0004940.0006560.000980.001180.001190.0016910.0020350.02860.004设备参考质量Kg87290485870980180028003

4、7007200型号说明：BR0.3-1.0-9-E表示波形为人字形、单板公称换热面积0.3m2、设计压力1.0Mpa、垫片材质EPDM总换热面积为9 m2板式换热器 注：以上选型计算方法适用丁本公司生产的板式换热器。选型实例一（卫生热水用：水 -水）1、使用参数 tm= tmax tminT1 tmaxLn tmintmax为（T1-T2）和（T1 -T2）之较大值tmin为（T1-T2）和（T1 -T2）之较小值c、板间流速计算公式：V=qT2T1T2Asn共12页，第3页一次水进水温度：90 C一次水流量：350m/一次水出水温度：70 C二次水进水温度：10C二次水流量：20nVh二次水

5、出水温度：60 C2、 热负荷Q=cm t=1X 50 X 1000 X (90-70)=1,000,000Kcal/h3、 初选换热面积平均温差 tm= (70-10) - (90-60) / ln(70-10)/(90-60)=43.3 C传热系数取K=3000ltal/h - C面积A=Q/K. tm=1,000,000/3000 X 43.3=7.7m2取设计余量17%(如介质比较洁净不易结垢，设计余量可偏小些。余量一般在10吩30咆问)则A=9.0宿根据流量及换热面积初选用BR0.3-1.0-9-E人字型波纹板型。4、 流速校核：需用单板面积为0.27m2的板片约33片。初选流道布置

6、方案：1 X 16/1 X 16有效换热面积AC=0.27 X 32=8.64宿根据“板式换热器整机技术参数表”选BR03型其主要几何参数：单板换热面积：0.27m2单通道截面积：0.0012 m2角孔直径：DN80一次水侧流速V1=q1/As.n1=50/3600 X 0.0012 X 16=0.72m/s二次水侧流速V2=q2/As.n2=20/3600 X 0.0012 X 16=0.29m/s流速范围在0.20.8 m/s之间，符合设计要求。所以，选型BR0.3-1.0-9-E;流程组合为1X 16/1 X 16。注：以上选型计算只适用丁本公司生产的板式换热器选型实例二(散热器采暖用：

7、汽 -水)1、使用参数热源采用0.4 Mpa饱和蒸汽(饱和温度150C),采暖面积为2万平方米。散 热器要求供水温共12页，第4页度80C，回水温度60Co2、热工计算每平方米按80大卡计算则总热负荷为160万大卡。热水流量为：m=Q/81=1600000/1 X (80-60)=80,000 Kg/h=80 m3/h3、初选换热面积平均温差 1m= (150-60) - (150-80) / ln(150-60)/(150-80)=79.6 C传热系数取K=1500!tal/h - C面积A=Q/K. 1m=1,600,000/1500 X 79.6=13.4m2取设计余量30% (为了使蒸

8、汽冷凝水温度更低，余量一般取大些，余量范围一股在10吩30咆问)WJ A=17.4m根据流量及换热面积初选用BR0.3-1.0-18-E人字型波纹板型。4、流速校核：需用单板面积为0.27m2的板片约67片。初选流道布置方案：1 X 33/1 X 33有效换热面积AC=0.27 X 66=17.82m2根据“板式换热器整机技术参数表”选BR03型其主要几何参数：单板换热面积：0.27m2单通道截面积As： 0.0012 m2角孔直径：DN80蒸汽侧流速V1=q1/As.n1=2667/3600 X 2.548 X 0.0012 X 33=7.34m/s(蒸汽热值按60万大卡每吨计算，0.4 M

9、pa饱和蒸汽密度查表为2.548 Kg/mL)热水侧流速V2=q2/As.n2=80/3600 X 0.0012 X 33=0.56m/s水侧流速范围在0.20.8 m/s之间，汽侧流速在15 m/s以内，符合设计要求。所以，确定选型BR0.3-1.0-18-E;流程组合为1 X 33/1 X 33。注：以上选型计算只适用丁本公司生产的板式换热器选型实例三(冷却润滑油用：油 -水)1、使用参数润滑油进口温度：60 C流量：50nVh润滑油出口温度：40 C冷却水进口温度：32 C共12页，第5页冷却水出口温度：37 C2、热负荷Q=cm t=2.043 X 50X 864X (60-40)=1

10、765152KJ/h=422184 Kcal/h(查表：4.181为KJ与Kcal的换算率，润滑油在60 C时比热为2.043KJ/(Kg.K)，密度为864Kg/ m3)冷却水流量m= Q/31=422184/1 X (37-32)=84437 Kg/h=84.5 m3/h3、选换热面积平均温差 tm= (60-37) - (40-32) / ln(60-37)/(40-32)=14.2 C传热系数取K=600al/h - C面积A=Q/K. tm=422,285/600 X 14.2_ _2=49.6m取设计余量17%(如介质比较洁净不易结垢，设计余量可偏小些。余量一般在10吩30咆问)则

11、A=58.0m根据流量及换热面积初选用BR0.5-1.0-58-E人字型波纹板型。4、流速校核：需用单板面积为0.52m2的板片约111片。初选流道布置方案：1 X 55/1 X 55有效换热面积AC=0.52X110=57.2根据“板式换热器整机技术参数表”选BR05型其主要几何参数：单板换热面积：0.52m2单通道截面积As： 0.00162 m2角孔直径：DN125润滑油侧流速V1=q1/As.n1=50/3600 X 0.001 62 X 55=0.16m/s冷却水侧流速V2=q2/As.n2=84.5/3600 X 0.001 62X 55=0.26m/s由丁润滑油侧及冷却水流速较低

12、(0.16m/s 0.2m/s ),流程组合重新排为：1 X 27+1 X 28 / 1 X 27+1X 28则润滑油侧重新计算流速为0.3 m/s，冷却水侧重新计算流速为0.52 m/s。流速范围在0.20.8 m/s之间，符合设计要求。所以，选型BR0.5-1.0-58-E;流程组合为1X 27+1X 28 / 1 X 27+1 X 28。注：以上选型计算只适用丁本公司生产的板式换热器。选型实例四(冷却麦芽汁用：麦芽汁 -水)1、使用参数麦芽汁进口温度：98 C流量：32 t/h麦芽汁出口温度：8.0 C冷冻水进口温度：2.0 C冷冻水出口温度：80 C2、热负荷Q=cm t=4.01 4

13、.18x32x1000X (98-8)=2,762,870Kcal/h(查表：4.18为水的比热容，麦芽汁在50C时比热为4.01 KJ/(Kg.K)冷却水流量m= Q/St=2762870/1 X (80-2)=35421 Kg/h=35.5 m3/h3、初选换热面积 平均温差 tm= (98-80) - (8-2 ) / ln(98-80)/(8-2)=10.9 C传热系数取K=3000ltal/h - K面积A=Q/K. tm=2762870/3000 X 10.9一 2=84.5m共12页，第6页取设计余量17%(如介质比较洁净不易结垢，设计余量可偏小些。余量一般在10吩30咆问)则A

14、=98.8m根据流量及换热面积初选用BR0.5-1.0-100-E人字型波纹板型。4、流速校核：需用单板面积为0.52m2的板片约193片。初选流道布置方案：4 X 24/4 X 24有效换热面积A=0.52 X 192=99.8m2根据“板式换热器整机技术参数表”选BR05型其主要几何参数：单板换热面积：0.52m2单通道截面积As： 0.00162 m2角孔直径：DN125麦芽汁侧流速V1=q1/As.n1=32/3600 X 0.001 62 X 24=0.23m/s冷冻水侧流速V2=q2/As.n2=35.5/3600 X 0.001 62X 24=0.25m/s流速范围在0.20.8

15、 m/s之间，符合设计要求。所以，选型BR0.5-1.0-100-E;流程组合为4X 24 / 4 X 24。注：以上选型计算只适用丁本公司生产的板式换热器附表一、(风机盘管空调采暖用1:热侧90C70C；冷侧50C60C)板片规格热负荷换热面积热侧流里冷侧流量接口法兰尺寸(x 104KCal/h )(m)3(m/h )3(m/h )DN( mm共12页，第7页BR0.1101.65.010.040BR0.1203.310.020.040BR0.2304.915.030.050BR0.2406.520.040.050BR0.3508.125.050.080BR0.3609.830.060.08

16、0BR0.37011.435.070.080BR0.38013.040.080.080BR0.39014.645.090.080BR0.310016.350.0100.080BR0.3P11017.955.0110.080/125BR0.3P12019.560.0120.080/125BR0.3P13021.165.0130.080/125BR0.3P14022.870.0140.080/125BR0.3P15024.475.0150.080/125BR0.3P16026.080.0160.080/150BR0.3P17027.685.0170.080/150BR0.3P18029.390.0

17、180.080/150BR0.3P19030.995.0190.080/150BR0.3P20032.5100.0200.080/150BR0.5P22035.8110.0220.0125/150BR0.5P25040.7125.0250.0125/150BR0.5P28045.5140.0280.0125/200BR0.5P30048.8150.0300.0125/200BR0.5P32052.0160.0320.0125/200BR0.5P35056.9175.0350.0125/200BR0.5P38061.8190.0380.0125/200BR0.5P40065.0200.0400.

18、0125/200说明：板片材质采用进口不锈钢SUS304垫片材质采用三元乙丙橡胶（EPDM,设 计压力1.0 Mpa设计温度95C, 100万大卡以上冷侧加装旁通（P）。如需了解更 详细资料请来电，谢谢！注：以上表格参数只适用丁本公司生产的板式换热器。附表二、（风机盘管采暖用2:热侧为0.20.4 Mpa饱和蒸汽；冷侧50C60C）板片规格热负荷换热面积蒸汽耗量冷侧流量接口法兰尺寸(x 104KCal/h )(m2)(Kg/h)(m3/h )DN (mm共12页，第8页BR0.1101.1151.010.040BR0.1202.2302.020.040BR0.2303.4453.030.050

19、BR0.2404.5604.040.050BR0.3505.6755.050.080BR0.3606.7906.060.080BR0.3707.81057.070.080BR0.3808.91208.080.080BR0.39010.11359.090.080BR0.310011.21510.0100.080BR0.3P11012.31661.0110.080/125BR0.3P12013.41812.0120.080/125BR0.3P13014.51963.0130.080/125BR0.3P14015.72114.0140.080/125BR0.515016.82265.0150.012

20、5BR0.516017.92416.0160.0125BR0.517019.02567.0170.0125BR0.518020.12718.0180.0125BR0.519021.32869.0190.0125BR0.520022.43020.0200.0125BR0.5P22024.63322.0220.0125/200BR0.5P25028.03775.0250.0125/200BR0.5P28031.34228.0280.0125/200BR0.5P30033.64530.0300.0125/200BR0.5P32035.84832.0320.0125/200BR0.5P35039.15

21、285.0350.0125/200BR0.5P38042.55738.0380.0125/200BR0.5P40044.76040.0400.0125/200说明：板片材质采用进口不锈钢SUS316L垫片材质采用三元乙丙橡胶（EPDM,设 计压力1.0 Mpa,设计温度160C, 100万大卡以上冷侧加装旁通（P）。如需了解 更详细资料请来电，谢谢！注：以上表格参数只适用丁本公司生产的板式换热器。附表三、（卫生热水用1:热侧90C70C；冷侧10C60 C）板片规格热负荷换热面积热侧流里冷侧流量接口法兰尺寸(x 104KCal/h )(m2)（m/h）(m3/h )DN (mm共12页，第9页

22、BR0.05101.05.02.025BR0.05202.010.04.025BR0.1303.015.06.040BR0.1404.020.08.040BR0.1505.025.010.040BR0.2606.030.012.050BR0.2707.035.014.050BR0.2808.040.016.050BR0.3909.045.018.080BR0.310010.050.020.080BR0.311011.055.022.080BR0.312012.060.024.080BR0.313013.065.026.080BR0.314014.070.028.080BR0.315015.07

23、5.030.080BR0.316016.080.032.080BR0.317017.085.034.080BR0.318018.090.036.080BR0.319019.095.038.080BR0.320020.0100.040.080BR0.522022.0110.044.0125BR0.525025.0125.050.0125BR0.528028.0140.056.0125BR0.530030.0150.060.0125BR0.532032.0160.064.0125BR0.535035.0175.070.0125BR0.538038.0190.076.0125BR0.540040.0

24、200.080.0125说明：板片材质采用进口不锈钢SUS304垫片材质采用三元乙丙橡胶（EPDM,设 计压力1.0 Mpa,设计温度95C,如需了解更详细资料请来电，谢谢！注：以上表格参数只适用丁本公司生产的板式换热器。附表四、（卫生热水用2:热侧为0.20.4 Mpa饱和蒸汽；冷侧10C60C）板片规格热负荷换热面积蒸汽耗量冷侧流量接口法兰尺寸(x 104KCal/h )(m2)(Kg/h)(m3/h )DN (mm共12页，第10页BR0.05100.8151.02.025BR0.1201.6302.04.040BR0.1302.4453.06.040BR0.1403.2604.08.0

25、40BR0.2504.1755.010.050BR0.2604.9906.012.050BR0.2705.71057.014.050BR0.3806.51208.016.080BR0.3907.31359.018.080BR0.31008.11510.020.080BR0.31108.91661.022.080BR0.31209.71812.024.080BR0.313010.51963.026.080BR0.314011.42114.028.080BR0.515012.22265.030.0125BR0.516013.02416.032.0125BR0.517013.82567.034.01

26、25BR0.518014.62718.036.0125BR0.519015.42869.038.0125BR0.520016.23020.040.0125BR0.522017.83322.044.0125BR0.525020.33775.050.0125BR0.528022.74228.056.0125BR0.530024.34530.060.0125BR0.532025.94832.064.0125BR0.535028.45285.070.0125BR0.538030.85738.076.0125BR0.540032.46040.080.0125说明：板片材质采用进口不锈钢SUS316L垫片

27、材质采用三元乙丙橡胶（EPDM,设 计压力1.0 Mpa,设计温度160C,如需了解更详细资料请来电，谢谢！注：以上表格参数只适用丁本公司生产的板式换热器。附表五、（散热片采暖用1 :热侧90C70C；冷侧60C80 C）板片规格热负荷换热面积热侧流里冷侧流量接口法兰尺寸(x 104KCal/h )(m2)（m/h）(m3/h )DN (mm共12页，第11页BR0.1104.05.05.040BR0.1208.010.010.040BR0.13012.015.015.040BR0.14016.020.020.040BR0.25020.025.025.050BR0.26024.030.030.

28、050BR0.27028.035.035.050BR0.38032.040.040.080BR0.39036.045.045.080BR0.310040.050.050.080BR0.311044.055.055.080BR0.312048.060.060.080BR0.513052.065.065.0125BR0.514056.070.070.0125BR0.515060.075.075.0125BR0.516064.080.080.0125BR0.517068.085.085.0125BR0.518072.090.090.0125BR0.519076.095.095.0125BR0.520080.0100.0100.0125BR0.522088.0110.0110.0125BR0.7250100.0125.0125.0200BR0.7280112.0140.0140.0200BR0.7300120.0150.0150.0200BR0.7320128.0160.0160.0200BR0.7350140.0175.0175.0200BR0.7380152.0190.0190.0200BR0.7400160.0200.0200.0200说明：板片材质采用进口不锈钢SUS304垫片材质采