消防给水工程自动喷水灭火系统设计.docx

西南林业大学土木工程学院消防给水工程课程设计报告题 目 德宏驻昆办自动喷水灭火系统设计 学 院 土木工程学院 班 级 消防工程2013级 姓 名 缪 也 学 号 2013* 指导教师 罗 * 老师 德宏驻昆办自动喷水灭火系统设计说明书1. 建筑特征此建筑一共8层，除首层为4.0m，其它层均为3.5m，建筑总高度为28.5m，一层面积约1200m，其它层均小于1000m，应属于二类高层民用公共建筑。该建筑1至3层为办公、娱乐、餐饮场所，4层以上为住宿房间，建筑整体火灾危险性划分为中危险一级；该地区常年平均气温为15-22，冬季无供暖。 此设计为整栋楼共8层自动喷水灭火系统布置平面图，以及整栋楼喷洒系统图。2系统选型根据建筑设计防火规范（GB50016-2014）该建筑场所应设置自动喷水灭火系统，综合该建筑的结构和用途、系统的控火率和灭火速度以及设计的简便性，得出该建筑应在其公共活动用房、走道、办公室、餐厅、KTV等处采用湿式自动喷水灭火系统。3 水力计算3.1 自动喷水灭火系统设计参数该建筑为中危险一级，净空高度小于8m，根据水喷雾灭火系统设计规范（GB50084-2001）表5.0.1可确定其喷水强度应为4L/(minm)，作用面积160 m，系统最不利点喷头的工作压力不低于0.05MPa3.2 喷头选型与设置要求对于湿式自动喷水灭火系统，当在吊顶下布置喷头时，此处采用的是下垂型喷头，其公称温度高于环境温度30，因为环境最高温度是38，公称温度应为58。 喷水强度/L/(minm)正方形布置的边长/m矩形或平行四边形长边的边长/m一只喷头的最大保护面积/m喷头与端墙的最大距离/m44.44.520.02.263.64.012.51.883.43.611.51.7123.03.69.01.5表3.2.1同一根配水管上喷头的间距及相邻配水支管的间距根据上表可得此处正方形布置的边长为3.6m，一只喷头的最大保护面积为20.0m，喷头与端墙的最大距离为1.8m。3.3 喷头布置每个喷头的流量应按下式计算：q=K10p(其中K=80,p为0.05MPa) =0.943L/s =80L/min喷头的布置间距d=qqu (其中q=80L/min,qu=6L/(minm) =3.6m所以按表3.2.1应该采取正方形布置喷头，其边长为3.6m，喷头与端墙的最大距离1.8m，最小为0.6m。表3.3.1 需要设置自动喷水灭火系统的房间及走廊尺寸房间或走廊长/mm宽/mm中餐厅1980015200厨房150007440旅行社75006800大厅170007950电梯厅75007200茶吧95007600超市40503000水泵房50003600消防控制室40003750卫生间60003800KTV包房7200720007200360050004990储藏室28002800电梯间75007200休息大厅18807200桑拿水区11307200室内茶吧54002800锅炉房75007200会议室72006800活动室128007500二层走廊51800300三层走廊22500300四层及以上走廊52600300八层走廊37500300*只列出部分设置位置根据以上数据对管线进行绘制并设置喷头。3.4 作用面积选定通过喷淋计算找出系统最不利点，作用面积包括最不利点，约为168m，尽可能为正方形，然后对各参数进行计算。3.5 流速计算 式中：Q - 管段流量L/s Dj -管道的计算内径（m） 3.6 每米管道的水头损失： 式中：i - 每米管道的水头损失（mH20/m） V - 管道内水的平均流速（m/s） dj - 管道的计算内径（m），取值应按管道的内径减mm确定3.7 沿程水头损失： 式中：L - 管段长度m3.8 局部损失（采用当量长度法）： (当量) 式中：L(当量) - 管段当量长度，单位m(自动喷水灭火系统设计规范附录C)3.9 总损失： 3.10 终点压力： 4对每一层的各个参数进行计算4.1 第一层 管段名称起点压力mH2O管道流量L/s管长m当量长度管径mmK水力坡降mH2O/m流速m/s损失mH2O终点压力mH2O1-27.001.113.050.8025800.5392.092.079.072-39.072.383.051.8032800.5302.512.5711.643-411.643.810.892.1032801.3614.024.0715.7220-414.881.622.161.2032800.2461.710.8315.704-515.725.433.353.6050800.3272.562.2717.9921-227.881.183.050.8025800.6062.222.3310.2122-2310.212.523.051.8032800.5962.662.8913.1023-513.104.040.892.3032801.5314.264.8917.9924-516.951.732.161.4032800.2801.821.0017.955-617.9911.203.354.3065800.3633.182.7720.7625-269.081.273.050.8025800.6992.382.6911.7726-2711.772.713.051.8032800.6872.853.3315.1027-615.104.340.892.3032801.7654.575.6420.7428-619.581.862.161.4032800.3241.961.1520.736-720.7617.403.354.6080800.3533.502.8123.5729-3010.341.353.050.8025800.7962.543.0613.4030-3113.402.893.051.8032800.7823.043.7917.1931-717.194.630.892.3032802.0104.886.4223.6132-722.261.982.161.4032800.3682.091.3123.577-823.5724.013.354.6080800.6734.845.3528.9233-3412.661.493.050.8025800.9752.813.7516.4134-3516.413.203.051.8032800.9583.374.6521.0635-821.065.120.892.3032802.4625.407.8628.9236-827.342.202.161.4032800.4522.321.6128.958-928.9231.333.354.6080801.1466.319.1138.039-1038.0331.332.760.0080801.1466.313.1741.1910-1141.1931.336.715.60150800.0331.660.4141.6011-1241.6031.336.220.00100800.2623.621.6343.2312-1343.2331.331.763.10100800.2623.621.2844.5113-1444.5131.331.630.00100800.2623.620.4344.9414-1544.9431.334.950.80100800.2623.621.5146.4415-1646.4431.333.784.6080801.1466.319.6056.0416-1756.0431.332.494.6080801.1466.318.1264.1717-1864.1731.332.980.0080801.1466.313.4267.5818-1967.5831.333.180.0080801.1466.313.6471.22计算结果如下：所选作用面积:168.4平方米总流量:31.33 L/s平均喷水强度:11.16 L/min.平方米入口压力:71.22 米水柱4.2 第二层管段名称起点压力mH2O管道流量L/s管长m当量长度管径mmK水力坡降mH2O/m流速m/s损失mH2O终点压力mH2O1-27.001.111.240.8025800.5392.091.108.1027-27.001.111.210.8025800.5392.091.088.082-38.102.223.352.1032800.4632.342.5210.6228-39.301.281.240.6025800.7162.411.3210.6129-39.301.281.210.6025800.7162.411.3010.593-410.624.780.812.4040801.0183.813.2713.894-513.894.783.741.5040801.0183.815.3419.225-619.226.631.783.1050800.4863.122.3721.606-721.608.582.423.6050800.8154.044.9026.5030-3112.811.501.380.8025800.9862.832.1614.9734-3113.671.550.470.8025801.0522.931.3315.0031-3214.973.061.752.1032800.8763.223.3718.3435-3615.971.680.770.8025801.2293.161.9317.9036-3217.901.681.450.3032800.2641.770.4618.3632-3318.344.733.152.7040800.9973.775.8424.1833-724.186.800.963.6050800.5123.202.3326.5137-722.201.981.890.6025801.7093.734.2626.467-826.5017.361.934.3065800.8714.925.4331.9338-3922.261.981.960.8025801.7133.734.7326.9939-4026.991.982.710.3032800.3682.091.1128.0940-828.094.211.893.0040800.7883.353.8531.9541-828.002.220.960.6025802.1554.193.3631.368-931.9323.793.364.6080800.6614.795.2637.199-1037.1923.792.370.0080800.6614.791.5738.7510-1138.7523.791.990.0080800.6614.791.3140.0611-1240.0623.793.600.0080800.6614.792.3842.4412-1342.4423.791.680.0080800.6614.791.1143.5513-1443.5523.792.874.6080800.6614.794.9348.4914-1548.4923.794.910.8080800.6614.793.7752.2615-1652.2623.791.750.00100800.1512.750.2652.5216-1752.5223.793.600.00100800.1512.750.5453.0717-1853.0723.793.700.00100800.1512.750.5653.6318-1953.6323.791.150.00100800.1512.750.1753.8019-2053.8023.793.600.00100800.1512.750.5454.3442-4330.892.333.660.6025802.3784.4010.1341.0243-4441.025.023.052.7040801.1234.006.4647.4745-4628.002.221.920.6025802.1554.195.4333.4346-4433.432.224.000.3040800.2201.770.9534.3744-2047.4710.141.703.9050801.1394.776.3753.8520-2154.3433.930.626.10100800.3083.922.0756.4121-2256.4133.931.716.10100800.3083.922.4058.8122-2358.8133.932.250.00100800.3083.920.6959.5123-2459.5133.930.996.10100800.3083.922.1861.6924-2561.6933.931.720.00100800.3083.920.5362.2225-2662.2233.934.150.00100800.3083.921.2863.49计算结果:所选作用面积:167.4平方米总流量:33.93 L/s平均喷水强度:12.16 L/min.平方米入口压力:63.49 米水柱4.3 第三层管段名称起点压力mH2O管道流量L/s管长m当量长度管径mmK水力坡降mH2O/m流速m/s损失mH2O终点压力mH2O1-27.001.113.000.8025800.5392.092.059.052-39.052.373.001.8032800.5292.502.5411.593-411.593.800.902.1032801.3574.014.0815.6631-414.881.622.101.2032800.2461.710.8115.694-515.665.423.103.6050800.3262.552.1817.8532-337.821.173.000.8025800.6022.212.2910.1133-3410.112.513.001.8032800.5912.652.8412.9434-512.944.020.902.3032801.5164.244.8617.8035-516.841.722.101.4032800.2791.820.9717.825-617.8511.173.104.3065800.3613.172.6720.5136-379.021.263.000.8025800.6952.382.6411.6637-3811.662.703.001.8032800.6822.843.2714.9338-614.934.320.902.3032801.7504.555.6020.5439-619.361.852.101.4032800.3201.951.1220.486-720.5117.342.604.6080800.3513.492.5323.0440-4115.041.632.400.8025801.1583.073.7018.7441-718.743.451.562.3032801.1143.634.3123.0542-4318.591.812.500.9032800.3081.911.0519.6443-719.643.670.412.3032801.2653.873.4223.067-823.0424.464.005.4080800.6984.936.5629.6044-4517.441.752.040.9032800.2891.850.8518.2948-4515.421.651.600.8025801.1873.112.8518.2745-4618.293.401.262.1032801.0863.593.6521.9446-4721.945.371.242.7040801.2834.275.0627.0049-4723.082.021.600.6025801.7763.803.9126.9947-827.007.390.413.9050800.6053.482.6029.608-929.6031.841.566.10100800.2713.682.0831.6850-927.132.191.600.6025802.0884.124.5931.729-1031.6834.030.226.10100800.3093.931.9533.6310-1133.6336.472.186.10100800.3554.212.9436.5851-1128.002.221.600.6025802.1554.194.7432.7411-1236.5838.690.996.10100800.4004.472.8439.4212-1339.4241.330.407.20100800.4564.773.4742.8852-1328.002.222.050.6025802.1554.195.7133.7113-1442.8843.551.357.60125800.1633.281.4644.3514-1544.3543.551.050.00125800.1633.280.1744.5215-1644.5243.550.500.00125800.1633.280.0844.6016-1744.6043.550.837.60125800.1633.281.3845.9817-1845.9843.552.400.00125800.1633.280.3946.3718-1946.3743.550.270.00125800.1633.280.0446.4119-2046.4143.551.037.60125800.1633.281.4147.8220-2147.8243.552.060.00125800.1633.280.3448.1621-2248.1643.550.347.60125800.1633.281.3049.4622-2349.4643.551.970.00125800.1633.280.3249.7823-2449.7843.550.990.00125800.1633.280.1649.9424-2549.9443.552.017.60125800.1633.281.5751.5125-2651.5143.551.290.00125800.1633.280.2151.7253-5428.002.223.350.8025802.1554.198.9436.9454-5536.942.221.862.1032800.4632.341.8438.7855-5638.782.220.680.0040800.2201.770.1538.9356-5738.932.2216.201.7040800.2201.773.9342.8657-5842.862.221.320.6065800.0140.630.0342.8958-5942.892.223.001.3080800.0060.450.0242.9159-6042.912.222.720.00150800.0000.120.0042.9160-6142.912.222.389.20150800.0000.120.0042.9261-2642.922.220.811.30150800.0000.120.0042.9226-2751.7245.772.187.60125800.1813.451.7653.4927-2853.4945.772.097.60125800.1813.451.7555.2428-2955.2445.770.617.60125800.1813.451.4856.7229-3056.7245.774.860.00125800.1813.450.8857.60计算结果:所选作用面积:168.9平方米总流量:45.77 L/s平均喷水强度:16.26 L/min.平方米入口压力:57.60 米水柱4.4 第四到七层管段名称起点压力mH2O管道流量L/s管长m当量长度管径mmK水力坡降mH2O/m流速m/s损失mH2O终点压力mH2O1-27.001.111.540.8025800.5392.091.268.2621-27.331.140.860.8025800.5642.140.948.272-38.262.253.702.1032800.4742.372.7511.0122-39.521.301.490.6025800.7322.441.5311.0423-39.841.320.960.6025800.7582.481.1811.033-411.014.862.362.7040801.0523.875.3216.3324-257.301.131.640.8025800.5622.141.378.6727-257.771.170.760.8025800.5982.200.938.7025-268.672.314.102.1032800.4982.433.0911.7628-2610.061.331.540.6025800.7752.511.6611.7229-2610.611.370.860.6025800.8172.581.1911.8026-411.765.011.392.7040801.1153.984.5616.324-516.339.876.353.6050801.0784.6510.7327.0630-3115.911.683.400.8025801.2253.165.1421.0631-521.063.602.642.3032801.2173.806.0227.085-627.0613.470.763.7065800.5243.822.3429.396-729.3915.750.444.3065800.7174.473.4032.797-832.7915.752.960.0080800.2903.170.8633.658-933.6518.183.404.6080800.3863.663.0936.749-1036.7420.733.404.6080800.5024.184.0140.7510-1140.7520.731.704.6080800.5024.183.1643.9111-1243.9120.731.700.0080800.5024.180.8544.7612-1344.7620.731.445.4080800.5024.183.4348.2013-1448.2020.731.960.00100800.1152.390.2248.4214-1548.4220.733.406.10100800.1152.391.0949.5115-1649.5120.733.606.10100800.1152.391.1150.6316-1750.6320.733.206.10100800.1152.391.0751.6917-1851.6920.733.786.10100800.1152.391.1352.8318-1952.8320.733.027.20100800.1152.391.1754.0019-2054.0020.733.407.60125800.0371.560.4154.41计算结果:所选作用面积:167.0平方米总流量:20.73 L/s平均喷水强度:7.45 L/min.平方米入口压力:54.41 米水柱4.5 第八层管段名称起点压力mH2O管道流量L/s管长m当量长度管径mmK水力坡降mH2O/m流速m/s损失mH2O终点压力mH2O1-27.001.112.650.8025800.5392.091.868.862-38.862.360.591.8032800.5232.491.2510.1126-38.311.212.060.8025800.6402.281.8310.143-410.113.573.452.1032801.1973.776.6516.764-516.765.290.442.9040801.2464.214.1520.9127-288.931.262.450.8025800.6872.362.2311.1630-288.971.262.450.8025800.6902.372.2411.2128-2911.163.922.402.1032801.4384.136.4717.6431-2914.271.592.450.6025801.0992.993.3517.6229-517.647.272.013.6050800.5853.423.2820.925-620.9112.562.813.7065800.4563.562.9723.886-723.8814.612.424.3065800.6174.144.1428.0232-3323.732.050.650.8025801.8273.852.6526.3833-726.382.053.700.5032800.3932.161.6528.0334-724.942.100.980.6025801.9203.953.0427.987-828.0218.754.214.6080800.4113.783.6231.6435-827.672.211.250.6025802.1304.163.9431.618-931.6420.961.154.6080800.5134.222.9534.599-1034.5923.430.175.4080800.6414.723.5738.1736-1028.002.222.230.60