风速风道及风口风速表

用于各类场所的低速风管流速（m/s）低速风道风速部位民用建筑 公共建筑 工厂新风入口 3.5 4.0 5.0风机入口 3.5 4.0 5.0风机出口 5.08.0 6.510.0 8.012.0主管道 3.54.5 5.06.5 6.09.0水平支管道 3.0 3.04.5 4.05.0立支管道 2.5 3.03.5 4.0送风口 1.02.0 1.53.5 3.04.0回风管道 低于送风 低于送风 低于送风低速风管系统的推荐值和最大流速 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2.5 4.0 2.5 4.5 2.5 8.0空气过滤器 1.3 1.5 1.5 1.8 1.8 1.8加热排管 2.3 2.5 2.5 3.0 3.0 3.5冷却排管 2.3 2.3 2.5 2.5 3.0 3.0淋水室 2.5 2.5 2.5 2.5 2.5 2.5风机出口 6.0 8.5 9.0 11.0 10.8 14.8主风管 4.0 6.0 6.0 8.0 9.0 11.0支风管(水平) 3.0 5.0 4.0 6.5 5.0 9.0支风管（垂直）2.5 4.0 3.5 6.0 4.0 8.0表 6 -3 低速风管系统的最大允许流速 （m/s）以摩擦阻力控制应用场所 以噪声控制主风管送风主管回风主管送风支管回风支管住宅 3.0 5.0 4.0 3.0 3.0公寓、饭店房间5.0 7.0 6.5 6.0 5.0办公室、图书馆6.0 10.0 7.5 8.0 6.0大礼堂、戏院 4.0 6.5 5.5 5.0 4.0银行、高级餐厅7.5 10.0 7.5 8.0 6.0百货店、自助餐厅9.0 10.0 7.5 8.0 6.0工厂 12.5 15.0 9.0 11.0 7.5表 6-4 以噪声标准控制的允许风速 （m/s）应用场所 流速 m/s图书馆、广播室 1.752.5住宅、公寓、私人办公室、医院房间 2.54.0银行、戏院、教室、一般办公室、商店、餐厅 4.05.0以噪音标准控制的允许送风流速工厂、百货公司、厨房 5.07.5播音室 1.52.5戏院 2.53.5住宅、公寓、饭店房间、教室 2.53.8私人办公室 2.54.0一般办公室 5.06.0电影院 5.0百货店、上层 7.5推荐的送风口流速百货店、地下 10.0表 6-5 逗留区的送风流速 (m/s)人体感觉或环境状况 流速 m/s不舒适、停滞空气的感觉 00.06理想、舒适 0.127基本舒适 0.1270.25不舒适、可以吹动薄纸 0.33对站立者为舒适感之上限 0.38逗留区流速对于工厂和局部空调 0.381.52长时间坐办公室 冷却 0.10长时间坐办公室 加热 0.20短时间坐餐厅 冷却 0.15短时间坐餐厅 加热 0.30逗留区最大允许流 速商店轻工作 冷却 0.20商店轻工作 加热 0.35重工作 冷却 0.30重工作 加热 0.45低压风管尺寸选择支风管 主风管风速m/s风量m3/h风速m/s风量m3/h圆形风管直径 mm 短形风管尺寸 mm2.5 110 3.0 1403.0170265 4.02203404.03805207004806608801271521782032292542007520075275100375100500100625100125100200100200125275125375125475125120125150125175150225150300150375150200175250175300175200200275200 2252255.0 11405.0900114014001700 6.01410177021602040241026203060280305330356381406575125550150675150650175775175900175450150450175550175550200650200750200375175400200450200 475225550225625225325200350225400225425250475250550250275225300250350250350300400300450300250250 2752753003003253253503503753506.0289034003830 7.53930425048504380502056105470629071704324574835085335598502009752009502251075225105025011752807252258252258252509252508003009003006252507252506503007253006753507503505253005753005503506253505754006504004253505003504754005254005254505754504003754254004504254754004754755005009.07990900010200112007.562907720807089209770107001230013600584610635660686771100030011003001225300110035011753501300350825350900350100035092540010004001075400700400775400850400800450875450950450625450675450725450725500775500825500550500600500650500650550700550750550525525550550600500625575 65060070060010.01500016600119001320014100155001700018300177001920020700228007377627878138388641425350127540013754001475400160040017254001175400110045011754501275450135045014504501025450975500122550011005001200500127550075050087555092555010005501075550112555080055080060085060090060097560010256007506007256507756508256509006509506509.0 197002110022400245002650028700 11.0250002720028900204003360036700889914940965991101618254001950400207540022004002375400215045015504501675450177545018754502000450 185050013505001450500155050016505001750500165055012255001300550137555014505501525550147560010756001175600122560013006001375600135065010006501050650112565012003501250650112575030900 3940010.0 33200 421004470047400354003770040000 5020010401070109011201140225045024004502550450235050024505002000500210050022005002025550 21505501725550182555019255501825600190060016006001650600175060016506501725650140065014756501550650150070015757001200750125075013007501375750145075011.0417004440046600480051005290055600583006100063800117011901220124012702275500270050029005003000500275