通风排烟风管及风口设计全参数

1、通风排烟设计工具箱，、通风管道流量阻力表1、缩伸软管摩擦阻力表圆形风管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、镀锌板风管摩擦阻力表矩型风管风量(m3/h)/摩擦阻力(Pa)mmv=2m/sv=3m/sv=4m/sv=5m/s

2、v=6m/s120 x120104/0.61156/1.27207/2.15259/3.25311/14.57160 x120138/0.51207/1.07277/1.8346/2.75415/3.86160 x160184/0.42277/0.78369/1.49461/2.26553/3.17200 x120173/0.46259/0.95346/1.62432/2.45734/3.44200 x160230/0.36346/0.77461/1.3576/1.79691/2.78250 x120216/0.41324/0.87432/1.47540/2.23648/250 x160288

3、/0.32432/0.69576/1.17720/1.77864/2.48250 x200360/0.27540/0.58720/0.99900/1.501080/2.11320 x120269/0.38403/0.79537/1.34672/2.03806/2.86320 x160369/0.29553/0.61737/1.04922/1.581106/2.22320 x200461/0.25691/0.519221/0.871152/1.311382/1.85320 x250576/0.21864/0.431152/0.741440/1.121728/1.57400 x120336/0.3

4、5504/0.74673/1.25841/1.901009/2.67400 x160461/0.27691/0.56922/0.951152/1.451382/2.03400 x200576/0.22864/0.461152/0.781440/1.201728/1.68400 x250720/0.191080/0.381440/0.661800/1.002160/1.40500 x160576/0.25864/0.521152/0.891440/1.341728/1.89500 x200720/0.211080/0.421440/0.731800/1.12160/1.54500 x250900

5、/0.171350/0.351800/0.602250/0.902700/1.28500 x3201152/0.141728/0.282304/0.492880/0.753456/1.05500 x4001440/0.122160/0.252880/0.423600/0.644320/0.89630 x160726/0.221089/0.481452/0.841814/1.122177/1.98630 x200907/0.191361/0.391814/0.672268/1.022722/1.43630 x2501134/0.161701/0.322268/0.552835/0.833402/

6、0.19630 x3201452/0.132177/0.262903/0.443629/0.674355/0.94630 x4001814/0.112722/0.223629/0.374536/0.565443/0.79630 x5002268/0.13402/0.194536/0.315670/0.486804/0.68800 x160922/0.201382/0.421843/0.672304/1.022765/2.15800 x2001152/0.181728/0.372304/0.632880/0.953456/1.34800 x2501440/0.142160/0.32880/0.5

7、13600/0.774320/1.08800 x3201843/0.12765/0.233686/0.404608/0.605530/0.851000 x2001440/0.162160/0.352880/0.603600/0.904320/1.301000 x2501800/0.132700/0.283600/0.484500/0.725400/1.021000 x3202304/0.113456/0.234608/0.375760/0.576912/0.80圆形风管v=2m/sv=3m/sv=4m/sv=5m/sv=6m/s10055/0.7683/1.58111/2.68139/4.05

8、166/5.69140109/0.49164/1.03219/1.75273/2.64328/3.72200224/0.31336/0.66448/1.12560/1.69672/2.382503.49/0.24524/0.5698/0.85873/1.281048/1.80360727/0.151090/0.321454/0.541817/0.822180/1.15400898/0.131347/0.281796/0.472245/0.722694/1.015001405/0.12108/0.212811/0.363513/0.554216/0.77说明(1).软管采用荷兰数据时，上述数据乘

9、以下系数:150 x2;200X1.8;250 x1.5;300X1.3(2).局部摩擦阻力:散流器喉径(mm)P(Pa)v=2m/sv=3m/sv=4m/sv=5m/sv=6m/s200 x20015.935.763.499.1142.7300 x30023.853.595.1148.7214.1400 x40029.466.0117.3183.2263.9(3)与散流器的摩擦阻力:接管规格P(Pa)(mm)v=2m/sv=3m/sv=4m/sv=5m/sv=6m/s镀锌管200 x2002.45.39.414.721.2镀锌管400 x4006.414.3225.539.857.3软管15

10、010.822.328.841.354.1软管35010.122.740.463.190.8当v=2m/s时,当v=4m/s时,P=2.4Pa;P=9.6Pa;当v=3m/s时,当v=5m/s时,P=5.4PaP=15Pa(4).保持风速必须的动压:当v=6m/s时，P=21Pa(5).其他局部阻力的计算按下式2gP=ZY1、室内送回风口尺寸表1、风口风量冷量对应表冷量风量送风口回风口RTkwm/hmmmm1.03.5750700 x150800 x1501.55.3800700 x150800 x1502.071000900 x1501000 x150/800 x2002.58.714501

11、000 x2001200 x2003.010.516001100 x2001300 x2003.512.218001250 x200/1000 x2501500 x200/1200 x2504.01419501000 x2501300 x2505.017.5830001600 x250/1360 x3002、不同送风方式的风量指标和室内平均流速ASHRAE送风方式单位地板面积的送风量l/sm2工作区平均流速m/s换气次数h-1侧送百叶风口3-60.13-0.187条形风口4-100.10-0.1812局部孔板送风5-150.10-0.1818顶棚散流器5-250.10-0.2530顶棚孔板送风

12、5-500.05-0.1560三、室内风管风速选择表1、低速风管系统的推荐和最大流速m/s应用场所住宅公共建筑工厂推荐最大推荐最大推荐最大室外空气入口2.54.02.54.52.58.0空气过滤器1.31.51.51.81.81.8加热排管2.32.52.53.03.03.5冷却排管2.32.32.52.53.03.0淋水室2.52.52.52.52.52.5风机出口6.08.59.011.010.014.0主风管4.06.06.08.09.011.0支风管（水平）3.05.04.06.55.09.0支风管（垂直）2.54.03.56.04.08.02、低速风管系统的最大允许速m/s应用场所以

13、噪声控制主风管以摩擦阻力控制送风主管回风主管送风支管回风支管住宅公寓、饭店房间3.05.04.03.03.0办公室、图书馆5.07.56.56.05.0大礼堂、戏院6.010.07.58.06.1银行、高级餐厅4.06.55.55.04.0百货店、自助餐7.510.07.58.06.0厅9.012.07.58.06.0工厂12.515.09.011.07.53、通风系统之流速m/s系统商业工业低送风、最大流速1313送风、一般流速6-1111-13速回风、最大流速1013回风、一般流速7.5-99-13高速、一般1313-25室内允许噪声主管风速支管风速dB（A）m/sm/s25-353-4W

14、235-504-62-3注：民用住宅w35dB(A),商务办公w45dB(A)四、室内风口风速选择表1、送风口风速卧室1.5-2m/s(风口在上部时)起居2-3m/s(风口在上部时)办公室3m/s（风口距地w2.5m）4m/s（风口距地w4.5m）商场、娱乐3-5m/s2、以噪音标准控制的允许送风流速m/s应用场所流速m/s图书馆、广播室1.75-2.5住宅、公寓、私人办公室、医院房间2.5-4.0银行、戏院、教室、一般办公室、商店、餐厅4.0-5.0工厂、百货公司、厨房5.0-7.53、推荐的送风口流速m/s应用场所流速m/s播音室1.5-2.5戏院2.5-3.5住宅、公寓、饭店房间、教室2

15、.5-3.8一般办公室2.5-4.0电影院5.0-6.0百货店、上层5.0百货店、地下7.510.04、送风口之最大允许流速m/s应用场所盘形送风口顶棚送风口侧送风口广播室3.0-3.54.0-4.52.5医院疗房4.0-4.54.5-5.02.5-3.0饭店房间、会客室4.0-4.55.0-6.02.5-4.0百货公司、剧场6.0-7.56.2-7.55.0-7.0教室、图书馆、办公室5.0-6.06.0-7.53.5-4.55、回风口风速房间净高风口位置风速3.5-4上部3-4m/s3-3.5上部2-3m/s2.5-3上部1.5-2m/s人不常停留处下部3m/s人常停留处下部1.5-2m/

16、s走廊回风下部1-1.5m/s6、回风格栅的推荐流速m/s位置近座位逗留区以上门下部门上部工业用流速m/s2-33-44347、百叶窗的推荐流速m/s位置新风回风减温器正面减温器旁通加热器旁通流速m/s2.5-44-62-47.5-125-7.5&逗留区流速与人体感觉的关系流速m/s人体感觉-0-0.08不舒适，停滞空气的感觉0.127理想，舒适0.127-0.25基本舒适0.38不舒适，可以吹动薄纸0.38对站立者为舒适感之上限0.38-1.52用于工厂和局部空间9、顶棚散流器送风量10、侧送风口送风量送风口尺寸mm送风口流速m/s1.52.02.53.755.0250*1003040507

17、095300*10035455585115400*100456075115150500*100557595145190600*1007090115170230750*10085115145215285900*100100135170255340250*150455570105145300*150507085130170400*150厂7090115170230500*15085115145215285600*150100135170255340750*150130170215320430900*150155205255385515400*20090120150230305500*200115150190285380600*200135180230340455750*200170230285430570900*200205275340415685400*250115150190285380500*250145190240355475600*250170230285430570750*250215285355535715900*2502553404306408551000*505575951451901000*75851151452152851000*1001151501902853801000*125145