工厂噪声监测布点方案

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：1

目录1.1任务分配.............................................31.11制定计划.........................................31.12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3.12厂界噪声监测.....................................43.13机器设备噪声监测.................................44.1方案布置图...........................................55.1监测数据记录及处理...................................55.11机床车间数据记录及处理............................65.12数控车床车间数据记录及处理.......................125.13厂界噪声数据记录及处理...........................15.................................35.14设备噪声数据记录及处理...........................186.1降噪方案设计........................................226.11厂内噪声现状....................................226.12吸声降噪设计....................................222

1.1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北两个车间，车间的面积都为14.5m/61.9m，噪声车间构造:为南北走向共有三扇二四砖砌墙，各个墙的总长都为61.9m。每面墙上有1.77m/3m的塑钢框架单层普通玻璃窗14块，车间拱形砖砌结构。墙和顶部都粉有白色石灰，地面为水泥地面。除此之外并没有措施。的产生地点位于邢台市军需学院机电系实训基地，该基地共有南源主要为为刨床和铣床。顶部为吸声降噪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:若在车间内选择1-3个监测点,如果车间各处车间各处A声级波动小于3dB,则只需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3

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的备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大于一米，根据相关规定其监测点备表面一米处，高度为半个机器设高备度，四个监测点。备表面0.3m。外形尺寸在0.3-1m备表面1m。进行监测。因为机械设备尺寸选择在据设选择4

4.1方案布置图汽车系实训车间4444445666677一区1二区416253外界1034444444899991011外界279三区128外界11车间设备一览表：设备名称一览表1外圆磨床开式双柱可倾2压力机开式可倾压力3机45678马鞍车床摇臂钻床牛头刨床平面磨床滚齿机立式升降台铣床910万能工具磨床11万能外圆磨床12数控车床55.1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①号监测点77.577.677.677.677.777.777.877.977.977.977.977.978.078.078.078.078.178.178.178.178.278.278.378.478.478.478.478.578.578.578.578.578.678.878.979.179.179.179.179.179.279.379.379.479.479.579.679.679.779.779.879.879.879.979.979.979.979.979.979.979.979.980.080.080.080.080.180.180.180.180.180.180.180.180.180.180.180.280.280.280.380.380.380.380.380.380.380.480.480.480.480.580.580.580.580.580.680.680.680.6L=L+(L-L)2/60eq501090L=79.8+（77.9-80.4）2/60=79.81（dB）eq6

2.一区②号监测点77.677.677.777.777.877.877.977.977.978.078.278.278.278.278.378.478.478.478.478.578.578.578.678.678.778.778.878.878.878.878.878.878.878.878.878.978.978.978.979.079.179.179.179.179.279.279.279.379.379.379.379.379.579.579.679.679.679.679.679.979.979.979.979.979.979.980.080.180.180.280.280.280.280.280.280.280.280.380.380.380.480.580.580.580.580.580.680.680.680.680.680.680.780.780.780.780.880.880.880.8L=L+(L-L)2/601090eq50L=79.3+（78.0-80.6）2/60=79.41（dB）eq73.一区③号监测点77.077.077.177.177.177.177.277.277.277.277.377.377.377.377.377.377.377.477.477.477.477.577.577.577.577.577.677.677.677.777.777.777.777.777.777.777.777.777.877.877.877.977.977.978.078.078.078.078.178.178.178.178.178.178.178.278.278.278.378.378.378.378.378.378.378.378.478.478.578.578.578.578.578.678.678.678.678.778.778.878.979.079.179.279.479.579.579.679.679.779.780.080.280.280.380.580.680.680.780.7L=L+(L-L)2/601090eq50L=78.1+（79.7-77.3）2/60=78.20(dB)eq8

4.二区④号监测点78.077.977.877.877.777.677.677.677.577.577.577.577.577.477.477.477.377.377.277.277.177.177.177.077.076.976.976.976.876.876.876.876.876.876.876.876.776.776.776.776.776.776.676.676.676.676.576.576.576.476.476.476.476.376.376.376.376.276.276.276.176.176.176.176.176.176.075.975.975.975.975.875.675.675.675.675.675.675.575.575.575.475.475.375.275.175.175.075.074.974.974.874.874.874.874.774.774.774.774.3L=L+(L-L)2/601090eq50L=76.4+（77.5-74.9）2/60=76.51(dB)eq9

5.二区⑤号监测点72.472.472.472.572.772.772.872.872.972.972.972.972.972.972.972.973.073.173.173.173.273.273.273.273.273.273.373.373.473.473.473.473.473.573.573.573.573.573.573.673.673.673.673.773.773.773.773.773.773.873.873.873.873.873.873.873.873.873.873.873.873.873.973.973.973.973.973.973.973.974.074.074.074.074.074.074.174.174.174.174.174.174.174.174.174.274.274.274.274.274.274.274.274.374.374.474.474.474.574.574.574.574.574.674.6L=L+(L-L)2/60eq501090L=73.8+（74.3-72.9）2/60=73.83(dB)eq10

6.二区⑥号监测点79.879.479.479.479.479.379.279.279.279.179.179.17978.878.778.778.678.678.678.578.578.478.478.478.478.478.278.278.278.278.1787877.677.677.677.577.577.577.577.577.577.577.477.477.477.477.477.477.377.377.377.277.177.177.177.17777.977.977.977.977.977.977.877.877.877.877.877.877.877.777.777.777.777.677.67776.976.976.976.976.876.776.576.376.276.276.276.276.2767978.978.978.978.878.878.878L=L+(L-L)2/60eq501090L=77.8+（79.1-76.9）2/60=77.88(dB)eq11

5.12数控车床车间数据记录及处理1.三区⑦号监测点74.874.474.374.274.174.174.17473.873.873.873.773.773.773.773.773.673.673.573.573.573.573.573.573.473.473.473.473.473.473.473.473.373.373.273.273.273.273.173.173.173.173.17372.972.972.972.872.872.872.872.872.872.772.772.772.772.772.772.772.572.572.572.572.572.472.472.372.2727271.871.871.771.671.671.571.571.571.471.371.170.570.574747473.973.973.973.973.973.973.873.873.873737373L=L+(L-L)2/6090eq5010L=73.2+（74-71.7）2/60=73.29(dB)eq12

2.三区⑧号监测点80.580.279.779.579.579.479.479.379.379.379.379.279.179.179.17978.978.978.878.878.878.878.878.778.778.778.778.778.778.778.678.678.678.478.478.478.478.378.378.378.378.278.278.278.278.278.278.278.278.278.278.178.178.178.178.178.17877.377.277.277.1777877.977.977.877.877.877.777.777.777.777.777.677.677.677.577.477.377.376.976.976.876.776.776.676.676.576.476.376.376.376.176.176.179797978.979.376.6260LL2LeqL78.278.3dB10906050133.三区⑨号监测点82.980.479.779.379.279.17978.478.478.478.378.378.378.278.178.178.178.178.178.17877.977.977.977.977.877.877.877.877.877.877.877.877.777.777.777.777.777.777.777.677.577.577.477.477.477.377.377.377.277.277.277.277.277.277.27776.976.876.876.876.876.876.776.776.676.676.676.676.576.576.576.476.376.275.675.27978.878.778.778.678.678.678.578.578.578.578.478.478787876.976.976.976.97877.977.978.776.6260LL2LeqL77.877.9dB10906050145.13厂界噪声数据记录及处理厂界南侧58.658.758.758.758.758.758.758.758.758.758.858.858.958.959.059.159.159.159.159.156.956.957.257.257.257.257.257.457.457.457.457.457.557.557.657.657.657.757.757.757.857.957.957.958.058.058.058.158.158.258.258.258.358.358.458.458.458.658.658.659.259.259.259.359.359.359.459.459.559.659.659.659.760.060.060.160.260.260.360.460.760.760.860.860.860.860.860.961.261.261.261.361.461.461.461.561.661.661.661.8L=L+(L-L)2/6010eq5090L=58.8+(61.2-57.4)2/60=59.04(dB)eq15

厂界东侧（数控车床门口）61.061.061.061.161.261.261.261.261.361.361.461.461.561.561.561.561.661.761.761.861.961.961.961.962.062.162.162.162.262.362.362.362.362.362.462.462.462.562.562.562.562.562.562.562.662.662.662.662.762.762.762.862.862.862.962.962.963.063.063.063.163.163.163.263.263.263.363.363.363.363.463.463.463.463.463.463.563.563.563.563.563.563.563.663.663.663.663.763.763.763.763.763.763.863.863.863.863.963.963.9L=L+(L-L)2/6010eq5090L=62.7+(63.7-61.3)2/60=62.80（dB）eq16

厂界东侧（机床车间门口）52.452.452.452.855.957.057.057.057.557.657.858.058.158.258.258.358.358.458.458.658.658.758.758.758.858.858.858.858.958.958.958.958.958.959.059.059.159.159.159.159.259.259.359.359.359.359.359.359.359.359.459.559.559.559.659.659.759.759.759.759.759.859.859.859.859.859.859.859.959.959.959.960.060.060.060.060.060.160.160.160.160.260.260.260.360.360.360.360.360.460.460.460.460.560.560.560.560.560.560.560.660.660.660.660.760.760.760.760.760.760.760.760.860.860.960.960.960.961.061.061.061.161.161.161.261.261.261.261.261.361.361.561.561.561.561.661.661.661.761.761.761.761.761.861.861.861.961.961.961.962.062.162.262.362.362.362.362.462.562.662.662.662.662.662.762.762.762.762.862.963.163.163.363.363.463.763.763.863.864.064.164.164.165.365.465.665.665.765.866.066.166.566.666.766.766.967.167.367.968.164.158.6260LL2LeqL60.561.0dB2018060100175.14设备噪声数据记录及处理设备为1号外圆磨床90.590.290.189.589.288.687.585.380.680.680.580.580.580.380.280.280.180.180.179.879.879.779.679.679.679.579.579.579.579.479.379.379.279.279.178.978.978.978.978.978.978.878.878.878.778.778.678.678.678.678.678.678.678.678.678.678.678.578.578.578.578.578.578.578.478.478.478.378.378.278.278.278.278.278.278.177.977.877.877.877.877.677.677.677.677.677.677.577.577.477.477.276.976.776.676.576.576.576.576.380.677.42LL2LeqL78.678.8dB10906060501878.676.286.386.285.685.585.385.285.285.284.584.384.284.282.280.680.680.580.480.280.279.979.979.879.879.879.779.679.679.679.679.679.679.579.579.579.579.579.579.479.479.279.278.978.978.978.678.678.678.678.678.678.678.578.578.578.578.578.578.578.578.478.478.478.478.478.378.278.278.278.176.576.576.576.576.576.476.376.376.276.276.276.276.276.175.675.675.575.575.475.375.275.275.274.574.574.272.570.670.585.275.32LL2LeqL78.680.2dB10906060501986.285.685.385.284.680.680.580.580.580.279.879.879.879.879.879.879.879.879.879.879.879.879.879.879.879.879.879.879.879.679.679.679.679.679.679.679.579.579.579.579.579.579.579.579.579.479.479.479.278.978.978.978.978.978.878.878.878.878.778.778.778.778.778.678.678.678.678.678.678.678.678.578.578.578.578.578.578.478.478.478.478.378.378.278.278.278.278.277.777.677.677.577.575.675.575.474.974.874.674.580.277.62LL2LeqL78.978.3dB10906060502089.589.288.687.585.385.385.285.285.280.279.879.879.879.879.879.879.879.879.779.679.679.679.679.679.679.679.679.679.679.679.679.679.579.579.579.579.578.978.978.978.978.978.878.878.878.878.878.878.778.778.678.678.678.678.678.678.67