1、For personal use only in study and research; not for commercial use第一章风管系统设计一、通风管道流量阻力表1、缩伸软管摩擦阻力表圆形风管v=2 m/sv=3 m/sv=4 m/sv=5 m/sv=6 m/s 150127/0.43190/0.98254/1.8318/3.23381/4.46 200226/0.32339/0.73452/1.30565/2.03678/2.92 250353/0.26530/0.558707/1.04883/1.621060/2.33 300509/0.21764/0.951018/1.621
2、273/2.441521/3.582、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=3 m/sv=4 m/sv=5 m/sv=6 m/s120x120104/0.61156/1.27207/2.15259/3.25311/14.57160x120138/0.51207/1.07277/1.8346/2.75415/3.86160x160184/0.42277/0.78369/1.49461/2.26553/3.17200x120173/0.46259/0.95346/1.62432/2.45734/3.44200x160230/0.36346/0.77
3、461/1.3576/1.79691/2.78250x120216/0.41324/0.87432/1.47540/2.23648/250x160288/0.32432/0.69576/1.17720/1.77864/2.48250x200360/0.27540/0.58720/0.99900/1.501080/2.11320x120269/0.38403/0.79537/1.34672/2.03806/2.86320x160369/0.29553/0.61737/1.04922/1.581106/2.22320x200461/0.25691/0.519221/0.871152/1.31138
4、2/1.85320x250576/0.21864/0.431152/0.741440/1.121728/1.57400x120336/0.35504/0.74673/1.25841/1.901009/2.67400x160461/0.27691/0.56922/0.951152/1.451382/2.03400x200576/0.22864/0.461152/0.781440/1.201728/1.68400x250720/0.191080/0.381440/0.661800/1.002160/1.40500x160576/ 0.25864/0.521152/0.891440/1.341728
5、/1.89500x200720/0.211080/0.421440/0.731800/1.12160/1.54500x250900/0.171350/0.351800/0.602250/0.902700/1.28500x3201152/0.141728/0.282304/0.492880/0.753456/1.05500x4001440/0.122160/0.252880/0.423600/0.644320/0.89630x160726/0.221089/0.481452/0.841814/1.122177/1.98630x200907/0.191361/0.391814/0.672268/1
6、.022722/1.43630x2501134/0.161701/0.322268/0.552835/0.833402/0.19630x3201452/0.132177/0.262903/0.443629/0.674355/0.94630x4001814/0.112722/0.223629/0.374536/0.565443/0.79630x5002268/0.13402/0.194536/0.315670/0.486804/0.68800x160922/0.201382/0.421843/0.672304/1.022765/2.15800x2001152/0.181728/0.372304/
7、0.632880/0.953456/1.34800x2501440/0.142160/0.32880/0.513600/0.774320/1.08800x3201843/0.12765/0.233686/0.404608/0.605530/0.851000x2001440/0.162160/0.352880/0.603600/0.904320/1.301000x2501800/0.132700/0.283600/0.484500/0.725400/1.021000x3202304/0.113456/0.234608/0.375760/0.576912/0.80圆形风管v=2 m/sv=3 m/
8、sv=4 m/sv=5 m/sv=6 m/s 10055/0.7683/1.58111/2.68139/4.05166/5.69 140109/0.49164/1.03219/1.75273/2.64328/3.72 200224/0.31336/0.66448/1.12560/1.69672/2.38 2503.49/0.24524/0.5698/0.85873/1.281048/1.80 360727/0.151090/0.321454/0.541817/0.822180/1.15 400898/0.131347/0.281796/0.472245/0.722694/1.01 500140
9、5/0.12108/0.212811/0.363513/0.554216/0.77说明(1).软管采用荷兰数据时,上述数据乘以下系数： 150x2； 200x1.8 ； 250x1.5； 300x1.3(2).局部摩擦阻力：散流器P (Pa)喉径 (mm)v=2m/sv=3 m/sv=4 m/sv=5 m/sv=6m/s200x20015.935.763.499.1142.7300x30023.853.595.1148.7214.1400x40029.466.0117.3183.2263.9(3) 与散流器的摩擦阻力：接管规格P (Pa)(mm)v=2m/sv=3 m/sv=4 m/sv=5
10、m/sv=6m/s镀锌管 200x2002.45.39.414.721.2镀锌管 400x4006.414.3225.539.857.3软管 15010.822.328.841.354.1软管 35010.122.740.463.190.8(4).保持风速必须的动压：当 v=2m/s时,P=2.4Pa； 当 v=3m/s 时 ,P=5.4Pa当 v=4m/s时,P=9.6Pa； 当 v=5m/s 时 ,P=15Pa当 v=6m/s时,P=21Pa(5).其他局部阻力的计算按下式:V2P=2g二、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/hmmmm1.03.5750
11、700x150800x1501.55.3800700x150800x1502.071000900x1501000x150/800x2002.58.714501000x2001200x2003.010.516001100x2001300x2003.512.218001250x200/1000x2501500x200/1200x2504.01419501000x2501300x2505.017.5830001600x250/1360x3002、不同送风方式的风量指标和室内平均流速ASHRAE单位地板面积的工作区平均送风方式换气次数 h-1送风量 l/sm2流速 m/s侧送百叶风口3-60.13-0
12、.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住宅公共建筑工厂应用场所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
13、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以噪声控制以摩擦阻力控制应用场所主风管送风主管回风主管送风支管回风支管住宅3.05.04.03.03.0公寓、饭店房间5.07.56.56.05.0办公室、图书馆6.010.07.58.06.1大礼堂、戏院4.06.55.55.04.0银行、高级餐厅7.510.07.58.06.0百货店、自助餐厅9.0工厂12.53、通风系统之流速m/s系统送风、最大流速低送风、一般流速速回风、最大流速回风、一般流速高速、一般室内允许噪声dB （A ）25-3535-5012.07
14、.58.06.015.09.011.07.5商业工业13136-1111-1310137.5 99-131313-25主管风速支管风速m/sm/s3-424-62-3注：民用住宅 35dB（ A），商务办公 45dB（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）3m/s（风口距地 2.5m）办公室4m/s（风口距地 4.5m）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、广播室住宅、公寓、私人办公室、医院房间银行、戏院、教室、一般办公室、商店、餐厅工厂、百货公司、厨房3、推荐的送风口流
15、速m/s应用场所播音室戏院住宅、公寓、饭店房间、教室一般办公室电影院百货店、上层百货店、地下4、送风口之最大允许流速m/s1.75-2.52.5-4.04.0-5.05.0-7.5流速 m/s1.5-2.52.5-3.52.5-3.82.5-4.05.0-6.05.07.510.0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
16、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/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/s2.5-44-62-47.5-125-7.58、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0.3
17、8-1.52用于工厂和局部空间9、顶棚散流器送风量送风流速m/s尺寸 mm1.01.52.02.53.755.0250*250507095120175235300*30070100135170255340350*35090140185230350465400*400120180240295440590500*500190280380470710945600*6002704105456801020136010、侧送风口送风量送风口流速 m/s送风口尺寸 mm1.52.02.53.755.0250*1003040507095300*10035455585115400*100456075115150
18、500*100557595145190600*1007090115170230750*10085115145215285900*100100135170255340250*150455570105145300*150507085130170400*1507090115170230500*15085115145215285600*150100135170255340750*150130170215320430900*150155205255385515400*20090120150230305500*200115150190285380600*200135180230340455750*2001
19、70230285430570900*200205275340415685400*250115150190285380500*250145190240355475600*250170230285430570750*250215285355535715900*2502553404306408551000*505575951451901000*75851151452152851000*1001151501902853801000*1251451902403554751000*1501702302854305701000*1752002653305006651000*20023030538057076
20、0以下无正文仅供个人用于学习、研究；不得用于商业用途。,.For personal use only in study and research; not for commercial use.Nur f r den pers?nlichen f r Studien, Forschung, zu kommerziellenckenZwe verwendet werden.Pour l tude et la recherche uniquement des fins personnelles; pas des fins commerciales.以下无正文仅供个人用于学习、研究；不得用于商业用途
21、。, .For personal use only in study and research; not for commercial use.Nur f r den pers?nlichen f r Studien, Forschung, zu kommerziellenckenZwe verwendet werden.Pour l tude et la recherche uniquement des fins personnelles; pas des fins commerciales.以下无正文仅供个人用于学习、研究；不得用于商业用途。, .For personal use only
22、 in study and research; not for commercial use.Nur f r den pers?nlichen f r Studien, Forschung, zu kommerziellenckenZwe verwendet werden.Pour l tude et la recherche uniquement des fins personnelles; pas des fins commerciales.以下无正文仅供个人用于学习、研究；不得用于商业用途。, .For personal use only in study and research; not for commercial use.Nur f r den pers?nlichen f r Studien, Forschung, zu kommerziellenckenZwe verwendet werden.Pour l tude et la recherche uniquement des fins personnelles; pas des fins commerciales.
