通風(fēng)排煙風(fēng)管及風(fēng)口設(shè)計(jì)參數(shù)匯總

1、通風(fēng)排煙設(shè)計(jì)工具箱通風(fēng)管道流量阻力表1、縮伸軟管摩擦阻力表圓形風(fēng)管v=2m/sv=3m/sv=4m/sv=5m/sv=6m/s150127/0.43190/0.98254/1.8318/3.23381/4.46200226/0.32339/0.73452/1.30565/2.03678/2.92250353/0.26530/0.558707/1.04883/1.621060/2.33300509/0.21764/0.951018/1.621273/2.441521/3.582、鍍鋅板風(fēng)管摩擦阻力表矩型風(fēng)管mm風(fēng)量(m3/h)/摩擦阻力(Pa)v=2m/sv=3m/sv=4m/sv=5m/sv=

2、6m/s120x120104/0.61156/1.27207/2.15259/3.25311/14.57160x120138/0.51207/1.07277/1.8346/2.75415/3.86160x160184/0.42277/0.78369/1.49461/2.26553/3.17734/3.44200x120173/0.46259/0.95346/1.62432/2.45200x160230/0.36346/0.77461/1.3576/1.79691/2.78250x120216/0.41324/0.87432/1.47540/2.23648/250x160288/0.32432/

3、0.69576/1.17720/1.77864/2.48250x200360/0.27540/0.58720/0.99900/1.501080/2.11320x120269/0.38403/0.79537/1.34672/2.03806/2.86320x160369/0.29553/0.61737/1.04922/1.581106/2.22320x200461/0.25691/0.519221/0.871152/1.311382/1.85320x250576/0.21864/0.431152/0.741440/1.121728/1.57400x120336/0.35504/0.74673/1.

4、25841/1.901009/2.67400x160461/0.27691/0.56r922/0.951152/1.451382/2.03400x200576/0.22864/0.461152/0.781440/1.201728/1.68400x250720/0.191080/0.381440/0.661800/1.002160/1.40500x160576/0.25864/0.521152/0.891440/1.341728/1.89500x200720/0.211080/0.421440/0.731800/1.12160/1.54500x250900/0.171350/0.351800/0

5、.602250/0.902700/1.28500x3201152/0.141728/0.282304/0.492880/0.753456/1.05500x4001440/0.122160/0.252880/0.423600/0.644320/0.89630x160726/0.221089/0.481452/0.841814/1.122177/1.98630x200907/0.191361/0.391814/0.672268/1.022722/1.43630x2501134/0.161701/0.322268/0.552835/0.833402/0.19630x3201452/0.132177/

6、0.262903/0.443629/0.674355/0.94630x4001814/0.112722/0.223629/0.374536/0.565443/0.79630x5002268/0.13402/0.194536/0.315670/0.486804/0.68800x160922/0.201382/0.421843/0.672304/1.022765/2.15800x2001152/0.181728/0.372304/0.632880/0.953456/1.34800x2501440/0.142160/0.32880/0.513600/0.774320/1.08800x3201843/

7、0.12765/0.233686/0.404608/0.605530/0.851000x2001440/0.162160/0.352880/0.603600/0.904320/1.301000x2501800/0.132700/0.283600/0.484500/0.725400/1.021000x3202304/0.113456/0.234608/0.375760/0.576912/0.80圓形風(fēng)管v=2m/sv=3m/sv=4m/sv=5m/sv=6m/s10055/0.7683/1.58111/2.68139/4.05166/5.69140109/0.49164/1.03219/1.75

8、273/2.64328/3.72200224/0.31336/0.66448/1.12560/1.69672/2.382503.49/0.24524/0.5698/0.85873/1.281048/1.80360727/0.151090/0.321454/0.541817/0.822180/1.15400898/0.131347/0.281796/0.472245/0.722694/1.015001405/0.12108/0.212811/0.363513/0.554216/0.77說明(1),軟管采用荷蘭數(shù)據(jù)時(shí)，上述數(shù)據(jù)乘以下系數(shù):150x2;200x1.8;250x1.5;300x1.3(

9、2),局部摩擦阻力:喉徑(mm)v=2m/sv=3m/sv=4m/sv=5m/sv=6m/s200x20015.935.763.499.1142.7300x30023.853.595.1148.7214.1400x40029.466.0117.3183.2263.9散流器P(Pa)(3)與散流器的摩擦阻力:接管規(guī)格(mm)P(Pa)v=2m/sv=3m/sv=4m/sv=5m/sv=6m/s鍍鋅管200x2002.45.39.414.721.2鍍鋅管400x4006.414.3225.539.857.3軟管15010.822.328.841.354.1軟管35010.122.740.463.1

10、90.8(4),保持風(fēng)速必須的動(dòng)壓:當(dāng)v=2m/s時(shí)，P=2.4Pa；當(dāng)v=3m/s時(shí)，P=5.4Pa當(dāng)v=4m/s時(shí)，P=9.6Pa；當(dāng)v=5m/s時(shí)，P=15Pa當(dāng)v=6m/s時(shí)，P=21PaV2(5).其他局部阻力的計(jì)算按下式：2gP二(T二、室內(nèi)送回風(fēng)口尺寸表1、風(fēng)口風(fēng)量冷量對(duì)應(yīng)表冷量風(fēng)量m/h送風(fēng)口mm回風(fēng)口mmRTkw1.03.5750700x150800x1501.55.3800700x150800x1502.071000900x1501000x150/800x2002.58.714501000x2001200x2003.010.516001100x2001300x2003.51

11、2.218001250x200/1000x2501500x200/1200x2504.01419501000x2501300x2505.017.5830001600x250/1360x3002、不同送風(fēng)方式的風(fēng)量指標(biāo)和室內(nèi)平均流速ASHRAE送風(fēng)方式單位地板面積的送風(fēng)量l/sm2工作區(qū)平均流速m/s換氣次數(shù)h-1側(cè)送百葉風(fēng)口3-60.13-0.187條形風(fēng)口4-100.10-0.1812局部孔板送風(fēng)5-150.10-0.1818頂棚散流器5-250.10-0.2530頂棚孔板送風(fēng)5-500.05-0.1560、室內(nèi)風(fēng)管風(fēng)速選擇表1、低速風(fēng)管系統(tǒng)的推薦和最大流速m/s應(yīng)用場(chǎng)所住宅公共建筑工廠推薦

12、最大推薦最大推薦最大室外空氣入口2.54.02.54.52.58.0空氣過濾器1.31.51.51.81.81.8加熱排管2.32.52.53.03.03.5冷卻排管2.32.32.52.53.03.0淋水室2.52.52.52.52.52.5風(fēng)機(jī)出口6.08.59.011.010.014.0主風(fēng)管4.06.06.08.09.011.0支風(fēng)管（水平）3.05.04.06.55.09.0支風(fēng)管（垂直）2.54.03.56.04.08.02、低速風(fēng)管系統(tǒng)的最大允許速m/s應(yīng)用場(chǎng)所以噪聲控制主風(fēng)管以摩擦阻力控制送風(fēng)主管回風(fēng)主管送風(fēng)支管回風(fēng)支管住宅公寓、飯店房間3.05.04.03.03.0辦公室、圖

13、書館5.07.56.56.05.0大禮堂、戲院6.010.07.58.06.1銀行、高級(jí)餐廳4.06.55.55.04.0百貨店、自助餐7.510.07.58.06.0廳9.012.07.58.06.0工廠12.515.09.011.07.53、通風(fēng)系統(tǒng)之流速m/s系統(tǒng)商業(yè)工業(yè)低送風(fēng)、最大流速1313送風(fēng)、一般流速6-1111-13速回風(fēng)、最大流速1013回風(fēng)、一般流速7.5-99-13高速、一般1313-25室內(nèi)允許噪聲dB（A）主管風(fēng)速m/s支管風(fēng)速m/s25-353-447、百葉窗的推薦流速m/s位置新風(fēng)回風(fēng)減溫器正面減溫器旁通加熱器旁通流速m/s2.5-44-62-47.5-125-7

14、.58、逗留區(qū)流速與人體感覺的關(guān)系流速m/s人體感覺-0-0.08不舒適，停滯空氣的感覺0.127理想，舒適0.127-0.25基本舒適0.38不舒適，可以吹動(dòng)薄紙0.38對(duì)站立者為舒適感之上限0.38-1.52用于工廠和局部空間9、頂棚散流器送風(fēng)量尺寸mm送風(fēng)流速m/s1.01.52.02.53.755.0250*250507095120175235300*30070100135170255340350*35090140185230350465400*400120180240295440590500*500190280380470710945600*600270410545680102013

15、6010、側(cè)送風(fēng)口送風(fēng)量送風(fēng)口尺寸mm送風(fēng)口流速m/s1.52.02.53.755.0250*1003040507095300*10035455585115400*100456075115150500*100557595145190600*1007090115170230750*10085115145215285900*100100135170255340250*150455570105145300*150507085130170400*1507090115170230500*15085115145215285600*150100135170255340750*150130170215320430900*150155205255385515400*20090120150230305500*200115150190285380600*200135180230340455750*200170230285430570900*200205275340415685400*250115150190285380500*250145190240355475600*250170230285430570750*250215285355535715900*2502553404306408551000*505575951451901000*75