工廠噪聲監(jiān)測(cè)布點(diǎn)方案

1、機(jī)電系實(shí)訓(xùn)車(chē)間噪聲監(jiān)測(cè)及降噪設(shè)計(jì)班級(jí)：環(huán)治081班完成小組:第三小組成 員：指導(dǎo)老師：目錄 TOC o 1-5 h z HYPERLINK l bookmark4 o Current Document 1.1任務(wù)分配3 HYPERLINK l bookmark7 o Current Document 1.11制定計(jì)劃3 HYPERLINK l bookmark15 o Current Document 1.12具體任務(wù)分配 3 HYPERLINK l bookmark20 o Current Document 2.1廠區(qū)的基本信息3 HYPERLINK l bookmark23 o Curre

2、nt Document 3.1方案設(shè)置及監(jiān)測(cè)點(diǎn)選取 3 HYPERLINK l bookmark26 o Current Document 3.11生產(chǎn)環(huán)境噪聲監(jiān)測(cè)3 HYPERLINK l bookmark29 o Current Document 3.12廠界噪聲監(jiān)測(cè)4 HYPERLINK l bookmark32 o Current Document 3.13機(jī)器設(shè)備噪聲監(jiān)測(cè)44.1方案布置圖5 HYPERLINK l bookmark91 o Current Document 5.1監(jiān)測(cè)數(shù)據(jù)記錄及處理 55.11機(jī)床車(chē)間數(shù)據(jù)記錄及處理65.12數(shù)控車(chē)床車(chē)間數(shù)據(jù)記錄及處理 12 HYPE

3、RLINK l bookmark104 o Current Document 5.13廠界噪聲數(shù)據(jù)記錄及處理155.14設(shè)備噪聲數(shù)據(jù)記錄及處理18 HYPERLINK l bookmark113 o Current Document 6.1降噪方案設(shè)計(jì)22 HYPERLINK l bookmark116 o Current Document 6.11廠內(nèi)噪聲現(xiàn)狀22 HYPERLINK l bookmark122 o Current Document 6.12吸聲降噪設(shè)計(jì)221.1任務(wù)分配1.11制定計(jì)劃第四周接受任務(wù)，利用網(wǎng)絡(luò)及圖書(shū)館資料查閱相關(guān)信息。第五周進(jìn)行實(shí)地考察，確定監(jiān)測(cè)方案并實(shí)施監(jiān)

4、測(cè)（9月26日現(xiàn)場(chǎng)調(diào)查確定 方案，9月27日進(jìn)行現(xiàn)場(chǎng)監(jiān)測(cè)）。第六周對(duì)監(jiān)測(cè)數(shù)據(jù)進(jìn)行分析，對(duì)比工業(yè)企業(yè)噪聲標(biāo)準(zhǔn)進(jìn)行降噪設(shè)計(jì)。第七周對(duì)監(jiān)測(cè)數(shù)據(jù)及降噪設(shè)計(jì)過(guò)程進(jìn)行整理，并以Word及PPt形式遞交老 師審閱。第八周利用PPt展示降噪設(shè)計(jì)方案。1.12具體任務(wù)分配1.第四周張春霞、張丁芳、梁斌斌、曲大偉圖書(shū)館查閱資料； 陳運(yùn)紅、李慧欣、楊路超、張振朝通過(guò)網(wǎng)絡(luò)搜集資料。2.9月26日共同勘測(cè)現(xiàn)場(chǎng)，并制定布點(diǎn)方案，9月27日進(jìn)行現(xiàn)場(chǎng)監(jiān)測(cè)。數(shù)據(jù)處理（共同處理再匯總）。張春霞、張丁芳、梁斌斌、曲大偉制作Word文檔，陳運(yùn)紅、李慧欣、楊 路超、張振朝制作PPt。2.1廠區(qū)的基本信息該噪聲的產(chǎn)生地點(diǎn)位于邢臺(tái)市軍需學(xué)

5、院機(jī)電系實(shí)訓(xùn)基地，該基地共有南 北兩個(gè)車(chē)間，車(chē)間的面積都為14.5 m/61.9 m，噪聲源主要為為刨床和銑床。 車(chē)間構(gòu)造:為南北走向共有三扇二四磚砌墻，各個(gè)墻的總長(zhǎng)都為61.9 m。每 面墻上有1.77 m / 3 m的塑鋼框架單層普通玻璃窗14塊，車(chē)間頂部為拱形 磚砌結(jié)構(gòu)。墻和頂部都粉有白色石灰，地面為水泥地面。除此之外并沒(méi)有吸 聲降噪措施。3.1方案設(shè)置及監(jiān)測(cè)點(diǎn)選取3.11生產(chǎn)環(huán)境噪聲監(jiān)測(cè)根據(jù)工業(yè)企業(yè)噪聲控制設(shè)計(jì)規(guī)范（GBJ87-85）規(guī)定測(cè)點(diǎn)選擇原則如下：若 車(chē)間各處A聲級(jí)波動(dòng)小于3dB,則只需在車(chē)間內(nèi)選擇1-3個(gè)監(jiān)測(cè)點(diǎn),如果車(chē)間各處 A聲級(jí)波動(dòng)大于3dB,須將車(chē)間分成若干區(qū)域,使任意

6、兩個(gè)區(qū)域的聲級(jí)波動(dòng)大于或 等于3dB,在每個(gè)區(qū)域里分別設(shè)置1-3個(gè)監(jiān)測(cè)點(diǎn)。測(cè)量高度在人耳附近。根據(jù)實(shí)際監(jiān)測(cè)，機(jī)床車(chē)間任意兩點(diǎn)間的聲級(jí)波動(dòng)大于3dB，所以將機(jī)床車(chē)間 劃分成兩個(gè)區(qū)域(如圖1所示)。數(shù)控車(chē)床車(chē)間任意兩點(diǎn)之間的聲級(jí)波動(dòng)小于 3dB，所以在數(shù)控車(chē)床車(chē)間任意檢測(cè)三個(gè)點(diǎn)即可(如圖1所示)。3.12廠界噪聲監(jiān)測(cè)測(cè)點(diǎn)應(yīng)布置在法定廠界處1m處，傳聲器高度N1.2m，測(cè)量應(yīng)在有圍墻時(shí)， 測(cè)點(diǎn)應(yīng)該高于圍墻。測(cè)點(diǎn)沿噪聲敏感區(qū)布置，兩側(cè)點(diǎn)的等效聲級(jí)3dB (A)，應(yīng) 在中間增加一個(gè)測(cè)點(diǎn)。當(dāng)廠界與居民住宅相連無(wú)法布點(diǎn)時(shí)，測(cè)點(diǎn)可布置在居室中 央，室內(nèi)限值應(yīng)比室外標(biāo)準(zhǔn)值低10d B (A)。因?yàn)閷?shí)訓(xùn)基地東側(cè)為

7、大學(xué)生后動(dòng)中心，南側(cè)為六教，西側(cè)為農(nóng)田，北側(cè)為汽 車(chē)系實(shí)訓(xùn)基地，將廠界監(jiān)測(cè)點(diǎn)布置在敏感區(qū)，即東側(cè)及南側(cè)，在東側(cè)布置兩個(gè)監(jiān) 測(cè)點(diǎn)，南側(cè)布置一個(gè)監(jiān)測(cè)點(diǎn)，其位置如圖1所示。監(jiān)測(cè)點(diǎn)距廠界一米，監(jiān)測(cè)高度1.2m。3.13機(jī)器設(shè)備噪聲監(jiān)測(cè)外形尺寸小于0.3m的小型機(jī)器，測(cè)點(diǎn)距設(shè)備表面0.3m。外形尺寸在0.3-1m 的中型機(jī)器，測(cè)點(diǎn)距設(shè)備表面0.5m。尺寸1m的大型機(jī)器，測(cè)點(diǎn)距設(shè)備表面1m。 特大型或危險(xiǎn)性設(shè)備，測(cè)點(diǎn)可選在較遠(yuǎn)的位置。測(cè)點(diǎn)數(shù)目可視機(jī)器設(shè)備的大小和 發(fā)聲部位的多少選取4-8個(gè)測(cè)點(diǎn)。由于車(chē)間內(nèi)設(shè)備較多，所以?xún)H選擇了一臺(tái)機(jī)器進(jìn)行監(jiān)測(cè)。因?yàn)闄C(jī)械設(shè)備尺寸 大于一米，根據(jù)相關(guān)規(guī)定其監(jiān)測(cè)點(diǎn)選擇在據(jù)設(shè)備表

8、面一米處，高度為半個(gè)機(jī)器設(shè) 備高度，選擇四個(gè)監(jiān)測(cè)點(diǎn)。界10外界12-車(chē)間設(shè)備一覽表:設(shè)備名稱(chēng)一覽表 夕卜圓磨床開(kāi)式雙柱可傾汽車(chē)系實(shí)訓(xùn)車(chē)間61 二區(qū)區(qū)4 4043 0 1 5 一區(qū)6 回0J7, , , ,53 20000 0 0 000 1回回回回回同舊 口皿三區(qū)M M皿扣一 j 8壓力機(jī)開(kāi)式可傾壓力4567機(jī) 馬鞍車(chē)床 搖臂鉆床 牛頭刨床平面磨床滾齒機(jī)立式升降臺(tái)銑10廿12床萬(wàn)能工具磨床 萬(wàn)能外圓磨床數(shù)控車(chē)床11ba(9P) T8 *62=09? (08-6 72) +8 ,62= 106 0T 09 ba09?(i- i)+ i9,08Z 0866/I 6/1泓9,08Z 0866/I 6

9、/1泓9,08Z 0866/I 6/1泓9,08I 0866/I 6/1泓2,08I 0866/I 6/0泓2,08I 0866/6泓0泓2,08I 0866/88Z0泓2,08I 0886/9泓0泓2,08I 0886/S泓6 LL08I 0886/S泓6 LL08I 08L 6LS泓6 LL08I 08L 6LS泓6 LL08I 089 0S泓6 LLS08I 089 0泓8 LLS080 ,08S 0L LLS080 ,086ZL LLS080 ,086Z泓9 LLS080 ,08S 0S泓9 LLS0866/S 0Z泓9 LLS0866/Z 6ZS LL覃n珈各XI -Iii *9盜世

10、近番害割囊瞻環(huán)I -s77.678.579.179.980.477.678.579.179.980.577.778.679.179.980.577.778.679.179.980.577.878.779.279.980.577.878.779.279.980.577.978.879.280.080.677.978.879.380.180.677.978.879.380.180.678.078.879.380.280.678.278.879.380.280.678.278.879.380.280.678.278.879.580.280.778.278.879.580.280.778.378.87

11、9.680.280.778.478.979.680.280.778.478.979.680.280.878.478.979.680.380.878.478.979.680.380.878.579.079.980.380.8、+(、-、) 2/60L =79.3+ (78.0-80.6) 2/60=79.41 (dB)eq77.077.477.878.378.977.077.577.978.379.077.177.577.978.379.177.177.577.978.379.277.177.578.078.379.477.177.578.078.379.577.277.678.078.479.

12、577.277.678.078.479.677.277.678.178.579.677.277.778.178.579.777.377.778.178.579.777.377.778.178.580.077.377.778.178.580.277.377.778.178.680.277.377.778.178.680.377.377.778.278.680.577.377.778.278.680.677.477.778.278.780.677.477.878.378.780.777.477.878.378.880.7、+(、-、) 2/60、=78.1+ (79.7-77.3) 2/60=78

13、.20(dB)78.077.176.776.175.577.977.176.776.175.477.877.176.676.175.477.877.076.676.175.377.777.076.676.175.277.676.976.676.175.177.676.976.576.075.177.676.976.575.975.077.576.876.575.975.077.576.876.475.974.977.576.876.475.974.977.576.876.475.874.877.576.876.475.674.877.476.876.375.674.877.476.876.37

14、5.674.877.476.876.375.674.777.376.776.375.674.777.376.776.275.674.777.276.776.275.574.777.276.776.275.574.3、+(、-、) 2/60、=76.4+ (77.5-74.9) 2/60=76.51(dB)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.

15、473.874.074.272.973.473.874.074.272.973.473.874.074.372.973.473.874.074.372.973.473.874.074.472.973.573.874.074.472.973.573.874.174.472.973.573.874.174.572.973.573.874.174.573.073.573.874.174.573.173.573.874.174.573.173.673.874.174.573.173.673.874.174.673.273.673.974.174.6Leq=L50+(Li0-L9o)2/60七二73.8

16、+ (74.3-72.9) 2/60=73.83(dB)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

17、.978.277.777.476.278.978.277.777.476.278.978.277.777.376.278.878.177.777.376.278.87877.677.376.278.87877.677.276、+(、-、) 2/60L =77.8+ (79.1-76.9) 2/60=77.88(dB)eq5.12數(shù)控車(chē)床車(chē)間數(shù)據(jù)記錄及處理1.三區(qū)號(hào)監(jiān)測(cè)點(diǎn)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

18、.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+(Li0-L9o)2/60、=73.2+ (74-71.

19、7) 2/60=73.29(dB)80.578.978.478.177.380.278.978.37877.279.778.878.37877.279.578.878.377.977.179.578.878.377.97779.478.878.277.876.979.478.878.277.876.979.378.778.277.876.879.378.778.277.776.779.378.778.277.776.779.378.778.277.776.679.278.778.277.776.679.178.778.277.776.579.178.778.277.676.479.178.67

20、8.277.676.37978.678.177.676.37978.678.177.576.37978.478.177.476.17978.478.177.376.178.978.478.177.376.1(L - LLeq 總 L + w905060=78.2 +皈3 - 76.6 = 78.3 dB6082.978.477.977.576.980.478.477.977.576.879.778.477.977.476.879.378.377.977.476.879.278.377.877.476.879.178.377.877.376.87978.277.877.376.77978.177

21、.877.376.778.878.177.877.276.678.778.177.877.276.678.778.177.877.276.678.678.177.877.276.678.678.177.777.276.578.67877.777.276.578.57877.777.276.578.57877.77776.478.57877.776.976.378.57877.776.976.278.477.977.776.975.678.477.977.676.975.26“-L“) Leq 牝 L + 10 &。90-=77.8 +(78.7 - 76.660=77.9 dB5.13廠界噪聲

22、數(shù)據(jù)記錄及處理廠界南側(cè)56.957.858.659.260.756.957.958.759.260.757.257.958.759.260.857.257.958.759.360.857.258.058.759.360.857.258.058.759.360.857.258.058.759.460.857.458.158.759.460.957.458.158.759.561.257.458.258.759.661.257.458.258.859.661.257.458.258.859.661.357.558.358.959.761.457.558.358.960.061.457.658.45

23、9.060.061.457.658.459.160.161.557.658.459.160.261.657.758.659.160.261.657.758.659.160.361.657.758.659.160.461.8Leq=L50+(Li0-L9o)2/60=58.8+(61.2-57.4) 2/60=59.04(dB)廠界東側(cè)（數(shù)控車(chē)床門(mén)口）61.061.962.563.163.561.061.962.563.163.561.061.962.563.163.561.161.962.563.263.661.262.062.663.263.661.262.162.663.263.661.2

24、62.162.663.363.661.262.162.663.363.761.362.262.763.363.761.362.362.763.363.761.462.362.763.463.761.462.362.863.463.761.562.362.863.463.761.562.362.863.463.861.562.462.963.463.861.562.462.963.463.861.662.462.963.563.861.762.563.063.563.961.762.563.063.563.961.862.563.063.563.9七孔+色土) 2/60=62.7+(63.7-6

25、1.3) 2/60=62.80 (dB)廠界東側(cè)（機(jī)床車(chē)間門(mén)口）52.458.659.259.760.160.661.061.762.664.152.458.759.259.860.260.661.161.762.664.152.458.759.359.860.260.661.161.762.664.152.858.759.359.860.260.661.161.862.665.355.958.859.359.860.360.761.261.862.765.457.058.859.359.860.360.761.261.862.765.657.058.859.359.860.360.761.2

26、61.962.765.657.058.859.359.860.360.761.261.962.765.757.558.959.359.960.360.761.261.962.865.857.658.959.359.960.460.761.361.962.966.057.858.959.459.960.460.761.362.063.166.158.058.959.559.960.460.761.562.163.166.558.158.959.560.060.460.861.562.263.366.658.258.959.560.060.560.861.562.363.366.758.259.0

27、59.660.060.560.961.562.363.466.758.359.059.660.060.560.961.662.363.766.958.359.159.760.060.560.961.662.363.767.158.459.159.760.160.560.961.662.463.867.358.459.159.760.160.561.061.762.563.867.958.659.159.760.160.561.061.762.664.068.1Leq 鋁 L100(L+ 20-L18060=60.5 +(64.1-58.6_6061.0 dB5.14設(shè)備噪聲數(shù)據(jù)記錄及處理設(shè)備為

28、1號(hào)外圓磨床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

29、.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(L - L80.6 - 77.4*Leq L +1090= 78.6 +-=78.8 dB50606078.680.279.478.576.276.279.979.278.476.286.379.979.278.476.286.279.878.978.476.285.679.878.978.476.185.579.878.978.475.685.379.778.678.375.685

30、.279.678.678.275.585.279.678.678.275.585.279.678.678.275.484.579.678.678.175.384.379.678.676.575.284.279.678.676.575.284.279.578.576.575.282.279.578.576.574.580.679.578.576.574.580.679.578.576.474.280.579.578.576.372.580.479.578.576.370.680.279.478.576.270.5T T(L - L :Leq r L + io90-5060b(-=78.6 + -

31、85.2 - 75.360=80.2 dB86.279.879.578.778.485.679.879.578.778.385.379.879.578.778.385.279.879.578.678.284.679.879.578.678.280.679.879.478.678.280.579.879.478.678.280.579.879.478.678.280.579.879.278.677.780.279.678.978.677.679.879.678.978.677.679.879.678.978.577.579.879.678.978.577.579.879.678.978.575.

32、679.879.678.878.575.579.879.678.878.575.479.879.578.878.574.979.879.578.878.474.879.879.578.778.474.679.879.578.778.474.5T T(L - L (80.2 - 77.6 m60Leq r L +w 90 = 78.9 += 78.3 dB506089.579.678.978.577.689.279.678.978.577.688.679.678.878.577.687.579.678.878.577.685.379.678.878.577.685.379.678.878.577.585.279.678.878.577.585.279.678.878.477.585.279.678.778.477.580.279.678.