工厂噪声监测布点方案.doc

机电系实训车间 噪声监测及降噪设计班 级：环治081班完成小组:第三小组成 员:指导老师：目录1.1 任务分配21.11制定计划21.12 具体任务分配32.1 厂区的基本信息33.1方案设置及监测点选取33.11生产环境噪声监测33.12厂界噪声监测43.13机器设备噪声监测44.1方案布置图45.1 监测数据记录及处理55.11机床车间数据记录及处理55.12数控车床车间数据记录及处理115.13厂界噪声数据记录及处理145.14设备噪声数据记录及处理176.1降噪方案设计216.11厂内噪声现状216.12吸声降噪设计211.1 任务分配1.11制定计划1.第四周接受任务,利用网络及图书馆资料查阅相关信息。2. 第五周进行实地考察,确定监测方案并实施监测（9月26日现场调查确定方案，9月27日进行现场监测）。3.第六周对监测数据进行分析，对比工业企业噪声标准进行降噪设计。4.第七周对监测数据及降噪设计过程进行整理，并以Word及PPt形式递交老师审阅。5.第八周利用PPt展示降噪设计方案。1.12 具体任务分配1.第四周张春霞、张丁芳、梁斌斌、曲大伟图书馆查阅资料；陈运红、李慧欣、杨路超、张振朝通过网络搜集资料。2.9月26日共同勘测现场，并制定布点方案，9月27日进行现场监测。3.数据处理（共同处理再汇总）。4. 张春霞、张丁芳、梁斌斌、曲大伟制作Word文档，陈运红、李慧欣、杨路超、张振朝制作PPt。2.1 厂区的基本信息该噪声的产生地点位于邢台市军需学院机电系实训基地，该基地共有南北两个车间，车间的面积都为14.5 m/61.9 m，噪声源主要为为刨床和铣床 。车间构造:为南北走向共有三扇二四砖砌墙，各个墙的总长都为61.9 m。每面墙上有1.77 m / 3 m的塑钢框架单层普通玻璃窗14块，车间顶部为拱形砖砌结构。墙和顶部都粉有白色石灰，地面为水泥地面。除此之外并没有吸声降噪措施。 3.1方案设置及监测点选取3.11生产环境噪声监测根据工业企业噪声控制设计规范(GBJ87-85)规定测点选择原则如下:若车间各处A声级波动小于3dB,则只需在车间内选择1-3个监测点,如果车间各处A声级波动大于3dB,须将车间分成若干区域,使任意两个区域的声级波动大于或等于3dB,在每个区域里分别设置1-3个监测点。测量高度在人耳附近。根据实际监测，机床车间任意两点间的声级波动大于3dB，所以将机床车间划分成两个区域（如图1所示）。数控车床车间任意两点之间的声级波动小于3dB ，所以在数控车床车间任意检测三个点即可（如图1所示）。3.12厂界噪声监测测点应布置在法定厂界处1m处，传声器高度1.2m，测量应在有围墙时，测点应该高于围墙。测点沿噪声敏感区布置，两侧点的等效声级3dB（A），应在中间增加一个测点。当厂界与居民住宅相连无法布点时，测点可布置在居室中央，室内限值应比室外标准值低10dB（A）。因为实训基地东侧为大学生后动中心，南侧为六教，西侧为农田，北侧为汽车系实训基地，将厂界监测点布置在敏感区，即东侧及南侧，在东侧布置两个监测点，南侧布置一个监测点，其位置如图1所示。 监测点距厂界一米，监测高度1.2m。3.13机器设备噪声监测 外形尺寸小于0.3m的小型机器，测点距设备表面0.3m。外形尺寸在0.3-1m的中型机器，测点距设备表面0.5m。尺寸1m的大型机器，测点距设备表面1m。特大型或危险性设备，测点可选在较远的位置。测点数目可视机器设备的大小和发声部位的多少选取4-8个测点。由于车间内设备较多，所以仅选择了一台机器进行监测。因为机械设备尺寸大于一米，根据相关规定其监测点选择在据设备表面一米处，高度为半个机器设备高度，选择四个监测点。4.1方案布置图 汽车系实训车间车间设备一览表：5.1 监测数据记录及处理5.11机床车间数据记录及处理1.一区号监测点77.5 78.2 79.2 79.9 80.3 77.6 78.2 79.3 79.9 80.3 77.6 78.3 79.3 80.0 80.3 77.6 78.4 79.4 80.0 80.3 77.7 78.4 79.4 80.0 80.3 77.7 78.4 79.5 80.0 80.3 77.8 78.4 79.6 80.1 80.3 77.9 78.5 79.6 80.1 80.4 77.9 78.5 79.7 80.1 80.4 77.9 78.5 79.7 80.1 80.4 77.9 78.5 79.8 80.1 80.4 77.9 78.5 79.8 80.1 80.5 78.0 78.6 79.8 80.1 80.5 78.0 78.8 79.9 80.1 80.5 78.0 78.9 79.9 80.1 80.5 78.0 79.1 79.9 80.1 80.5 78.1 79.1 79.9 80.1 80.6 78.1 79.1 79.9 80.2 80.6 78.1 79.1 79.9 80.2 80.6 78.1 79.1 79.9 80.2 80.6 Leq=L50+(L10-L90)2/60Leq=79.8+（77.9-80.4）2/60=79.81（dB）2.一区号监测点77.678.579.179.980.477.678.579.179.980.577.778.679.179.980.577.778.679.179.980.577.878.779.279.980.577.878.779.279.980.577.978.879.280.0 80.677.978.879.380.180.677.978.879.380.180.678.0 78.879.380.280.678.278.879.380.280.678.278.879.380.280.678.278.879.580.280.778.278.879.580.280.778.378.879.680.280.778.478.979.680.280.778.478.979.680.280.878.478.979.680.380.878.478.979.680.380.878.5 79.0 79.980.380.8Leq=L50+(L10-L90)2/60Leq=79.3+（78.0-80.6）2/60=79.41（dB）3.一区号监测点 77.0 77.4 77.8 78.3 78.9 77.0 77.5 77.9 78.3 79.0 77.1 77.5 77.9 78.3 79.1 77.1 77.5 77.9 78.3 79.2 77.1 77.5 78.0 78.3 79.4 77.1 77.5 78.0 78.3 79.5 77.2 77.6 78.0 78.4 79.5 77.2 77.6 78.0 78.4 79.6 77.2 77.6 78.1 78.5 79.6 77.2 77.7 78.1 78.5 79.7 77.3 77.7 78.1 78.5 79.7 77.3 77.7 78.1 78.5 80.0 77.3 77.7 78.1 78.5 80.2 77.3 77.7 78.1 78.6 80.2 77.3 77.7 78.1 78.6 80.3 77.3 77.7 78.2 78.6 80.5 77.3 77.7 78.2 78.6 80.6 77.4 77.7 78.2 78.7 80.6 77.4 77.8 78.3 78.7 80.7 77.4 77.8 78.3 78.8 80.7 Leq=L50+(L10-L90)2/60Leq=78.1+（79.7-77.3）2/60=78.20(dB)4.二区号监测点78.0 77.1 76.7 76.1 75.5 77.9 77.1 76.7 76.1 75.4 77.8 77.1 76.6 76.1 75.4 77.8 77.0 76.6 76.1 75.3 77.7 77.0 76.6 76.1 75.2 77.6 76.9 76.6 76.1 75.1 77.6 76.9 76.5 76.0 75.1 77.6 76.9 76.5 75.9 75.0 77.5 76.8 76.5 75.9 75.0 77.5 76.8 76.4 75.9 74.9 77.5 76.8 76.4 75.9 74.9 77.5 76.8 76.4 75.8 74.8 77.5 76.8 76.4 75.6 74.8 77.4 76.8 76.3 75.6 74.8 77.4 76.8 76.3 75.6 74.8 77.4 76.8 76.3 75.6 74.7 77.3 76.7 76.3 75.6 74.7 77.3 76.7 76.2 75.6 74.7 77.2 76.7 76.2 75.5 74.7 77.2 76.7 76.2 75.5 74.3 Leq=L50+(L10-L90)2/60Leq=76.4+（77.5-74.9）2/60=76.51(dB)5.二区号监测点72.473.273.673.974.172.473.273.773.974.272.473.273.773.974.272.573.273.773.974.272.773.273.773.974.272.773.373.773.974.272.873.373.773.974.272.873.473.874.0 74.272.973.473.874.0 74.272.973.473.874.0 74.372.973.4 73.874.0 74.372.973.473.874.0 74.472.973.573.874.0 74.472.973.573.874.174.472.973.573.874.174.572.973.573.874.174.573.0 73.573.874.174.573.173.573.874.174.573.173.673.874.174.573.173.673.874.174.673.273.673.974.174.6Leq=L50+(L10-L90)2/60Leq=73.8+（74.3-72.9）2/60=73.83(dB)6.二区号监测点 79.878.87877.677.179.478.777.977.677.179.478.777.977.677.179.478.677.977.577.179.478.677.977.57779.378.677.977.57779.278.577.977.576.979.278.577.877.576.979.278.477.877.576.979.178.477.877.576.979.178.477.877.476.879.178.477.877.476.77978.477.877.476.57978.277.877.476.378.978.277.777.476.278.978.277.777.476.278.978.277.777.376.278.878.177.777.376.278.87877.677.376.278.87877.677.276Leq=L50+(L10-L90)2/60Leq=77.8+（79.1-76.9）2/60=77.88(dB)5.12数控车床车间数据记录及处理1.三区号监测点74.873.873.472.972.574.473.873.472.972.474.373.873.472.972.474.273.773.472.872.374.173.773.372.872.274.173.773.372.87274.173.773.272.8727473.773.272.871.87473.673.272.871.87473.673.272.771.77473.573.172.771.673.973.573.172.771.673.973.573.172.771.573.973.573.172.771.573.973.573.172.771.573.973.57372.771.473.973.47372.571.373.873.47372.571.173.873.47372.570.573.873.47372.570.5Leq=L50+(L10-L90)2/60Leq=73.2+（74-71.7）2/60=73.29(dB)2.三区号监测点80.578.978.478.177.380.278.978.37877.279.778.878.37877.279.578.878.377.977.179.578.878.377.97779.478.878.277.876.979.478.878.277.876.979.378.778.277.876.879.378.778.277.776.779.378.778.277.776.779.378.778.277.776.679.278.778.277.776.679.178.778.277.776.579.178.778.277.676.479.178.678.277.676.37978.678.177.676.37978.678.177.576.37978.478.177.476.17978.478.177.376.178.978.478.177.376.13.三区号监测点82.978.477.977.576.980.478.477.977.576.879.778.477.977.476.879.378.377.977.476.879.278.377.877.476.879.178.377.877.376.87978.277.877.376.77978.177.877.376.778.878.177.877.276.678.778.177.877.276.678.778.177.877.276.678.678.177.877.276.678.678.177.777.276.578.67877.777.276.578.57877.777.276.578.57877.77776.478.57877.776.976.378.57877.776.976.278.477.977.776.975.678.477.977.676.975.25.13厂界噪声数据记录及处理厂界南侧56.957.858.659.260.756.957.958.759.260.757.257.958.759.260.857.257.958.759.360.857.258.0 58.759.360.857.258.0 58.759.360.857.258.0 58.759.460.857.458.158.759.460.957.458.158.759.561.257.458.258.759.661.257.458.258.859.661.257.458.258.859.661.357.558.358.959.761.457.558.358.960.0 61.457.658.459.0 60.0 61.457.658.459.160.161.557.658.459.160.261.657.758.659.160.261.657.758.659.160.361.657.758.659.160.461.8Leq=L50+(L10-L90)2/60Leq=58.8+(61.2-57.4)2/60=59.04(dB)厂界东侧（数控车床门口）61.0 61.9 62.5 63.1 63.5 61.0 61.9 62.5 63.1 63.5 61.0 61.9 62.5 63.1 63.5 61.1 61.9 62.5 63.2 63.6 61.2 62.0 62.6 63.2 63.6 61.2 62.1 62.6 63.2 63.6 61.2 62.1 62.6 63.3 63.6 61.2 62.1 62.6 63.3 63.7 61.3 62.2 62.7 63.3 63.7 61.3 62.3 62.7 63.3 63.7 61.4 62.3 62.7 63.4 63.7 61.4 62.3 62.8 63.4 63.7 61.5 62.3 62.8 63.4 63.7 61.5 62.3 62.8 63.4 63.8 61.5 62.4 62.9 63.4 63.8 61.5 62.4 62.9 63.4 63.8 61.6 62.4 62.9 63.5 63.8 61.7 62.5 63.0 63.5 63.9 61.7 62.5 63.0 63.5 63.9 61.8 62.5 63.0 63.5 63.9 Leq=L50+(L10-L90)2/60Leq=62.7+(63.7-61.3)2/60=62.80（dB）厂界东侧（机床车间门口）52.4 58.6 59.2 59.7 60.1 60.6 61.0 61.7 62.6 64.1 52.4 58.7 59.2 59.8 60.2 60.6 61.1 61.7 62.6 64.1 52.4 58.7 59.3 59.8 60.2 60.6 61.1 61.7 62.6 64.1 52.8 58.7 59.3 59.8 60.2 60.6 61.1 61.8 62.6 65.3 55.9 58.8 59.3 59.8 60.3 60.7 61.2 61.8 62.7 65.4 57.0 58.8 59.3 59.8 60.3 60.7 61.2 61.8 62.7 65.6 57.0 58.8 59.3 59.8 60.3 60.7 61.2 61.9 62.7 65.6 57.0 58.8 59.3 59.8 60.3 60.7 61.2 61.9 62.7 65.7 57.5 58.9 59.3 59.9 60.3 60.7 61.2 61.9 62.8 65.8 57.6 58.9 59.3 59.9 60.4 60.7 61.3 61.9 62.9 66.0 57.8 58.9 59.4 59.9 60.4 60.7 61.3 62.0 63.1 66.1 58.0 58.9 59.5 59.9 60.4 60.7 61.5 62.1 63.1 66.5 58.1 58.9 59.5 60.0 60.4 60.8 61.5 62.2 63.3 66.6 58.2 58.9 59.5 60.0 60.5 60.8 61.5 62.3 63.3 66.7 58.2 59.0 59.6 60.0 60.5 60.9 61.5 62.3 63.4 66.7 58.3 59.0 59.6 60.0 60.5 60.9 61.6 62.3 63.7 66.9 58.3 59.1 59.7 60.0 60.5 60.9 61.6 62.3 63.7 67.1 58.4 59.1 59.7 60.1 60.5 60.9 61.6 62.4 63.8 67.3 58.4 59.1 59.7 60.1 60.5 61.0 61.7 62.5 63.8 67.9 58.6 59.1 59.7 60.1 60.5 61.0 61.7 62.6 64.0 68.1 5.14设备噪声数据记录及处理90.579.878.978.577.890.279.778.878.577.690.179.678.878.577.689.579.678.878.577.689.279.678.778.477.688.679.578.778.477.687.579.578.678.477.685.379.578.678.377.580.679.578.678.377.580.679.478.678.277.480.579.378.678.277.480.579.378.678.277.280.579.278.678.276.980.379.278.678.276.780.279.178.678.276.680.278.978.678.176.580.178.978.677.976.580.178.978.577.876.580.178.978.577.876.579.878.978.577.876.3设备为1号外圆磨床78.680.279.478.576.276.279.979.278.476.286.379.979.278.476.286.279.878.978.476.285.679.878.978.476.185.579.878.978.475.685.379.778.678.375.685.279.678.678.275.585.279.678.678.275.585.279.678.678.275.484.579.678.678.175.384.379.678.676.575.284.279.678.676.575.284.279.578.576.575.282.279.578.576.574.580.679.578.576.574.580.679.578.576.474.280.579.578.576.372.580.479.578.576.370.680.279.478.576.270.586.279.879.578.778.485.679.879.578.778.385.379.879.578.778.385.279.879.578.678.284.679.879.578.678.280.679.879.478.678.280.579.879.478.678.280.579.879.478.678.280.579.879.278.677.780.279.678.978.677.679.879.678.978.677.679.879.678.978.577.579.879.678.978.577.579.879.678.978.575.679.879.678.878.575.579.879.678.878.575.479.879.578.878.574.979.879.578.878.474.879.879.578.778.474.679.879.578.778.474.589.579.678.978.577.689.279.678.978.577.688.679.678.878.577.687.579.678.878.577.685.379.678.878.57