空调防排烟设计各个风速的确定

1、空调、防排烟设计各个风速的确定2. 送风风速标准逗留区之最大允许流速m/s人体状态长时间坐短时间坐轻工作重工作应用办公室餐厅商店轻工业工厂、舞厅冷却m/s加热m/s3.送风口之最大允许流速 m/s4. 逗留区流速与人体感觉的关系流速m/s人体感觉0不舒适，停滞空气的感觉理想，舒适基本舒适不舒适，可以吹动薄纸对站立者为舒适感之上限用于工厂和局部空调5. 空调房间允许之最大送风温差C送风方式下列房间高度m23456侧送，大风量101214侧送，小风量11131517顶棚散流器16171818.不同送风方式的送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/s m工作区平均流速m

2、/s换气次数1/h侧送百叶风口 条形风口局部孔板送风 顶棚散流器顶棚孔板送风364105155255 507121830607低速风管系统的最大允许流速 m/s应用场所以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、饭店房间办公室、图书馆大礼堂、戏院银行、高级餐厅百货店、自助餐厅工厂注：1. 散流器中心距墙不小于，所服务的区域最好为正方形或接近正方形。2. 选用200x200的散流器，500立每小时，射程，风速 s,半宽度。，总宽度为6x6m的区域8.推荐的送风口流速m/s应用场所流速m/s播音室戏院住宅、公寓、饭店房间、教室私人办公室一般办公室电影院百货店、上层百货店

3、、地下9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空气过滤器加热排管冷却排管淋水室风机出口主风管支风管（水平）支风管（垂直）通风、空调系统风管内的风速及通过部分部件时的迎面风速（m/s）表8-1推荐风速最大风速部位居住建筑 公共建筑 工业建筑 居住建筑 公共建筑 工业建筑风机吸入口风机出口暖通空调部件的典型设计风速（m/s）表 8-2迎面风速部件名称迎面风速加热盘管1.蒸汽和热水盘管（最小，最大）2.电加热器参见生产厂家资料裸线式肋片管式冷却减湿盘管同风管风空气喷淋室参见生产厂家资料速喷水型参见生产厂家资料填料型高速喷水型主风管支风管从支管上

4、接岀的风管新风入口空气过滤器换热盘管喷水室部件名称进风百叶窗风量大于10000 m3/h风量小于10000 m3/h排风百叶窗风量大于8000 m3/h风量小于8000 m3/h空气过滤器1. 板式过滤器1）黏性滤料2）干式带扩展表面，平板型（粗效）3）褶叠式（中效） 4）高效过滤器（HEPA2. 可更换滤料的过滤器卷绕型黏性滤料卷绕型干式滤料3. 电子空气过滤器电离式1、高速送风系统中风管的最大允许风速，按表8-4采用高速送风系统中风管的最大允许风速表8-4风量范围（rm/h）最大允许风速（mi/h）风量范围（m/h）最大允许风速（mi/h ）100000680003022500170006

5、800042500251700010000125002250010000505015通风空调风管和出风口的最大允许风速（m/s）表 8-3室内允许噪声级干管支管风口（dB）2535W355050656585注: 百叶风口叶片间的气流速度增加10%噪声的声功率级将增加 2dB,若流速增加一倍，噪声的声功率级约增加16dB。 对于出口处无障碍敞开风口，表中的出风口速度可以提高倍。10.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11.回风格棚的推荐流速 m/s位置近座位逗留区以上门下部

6、门上部工业用流速m/s233443=412.通风系统之流速m/s系统商业工业送风、最大流速1313低送风、一般流速61111 13速回风、最大流速1013回风、一般流速9913高速、一般1313 2513.百叶窗的推荐流速m/s位置新风回风减湿器正面减温器旁通加热器旁通流速m/s46 62412514.各风口的送风量顶棚散流器送风量l/s尺寸mm送风流量m/s250*250507095120175235300*30070100135170255340350*35090140185230350465400*400120180240295440590500*50019028038047071094

7、5600*6002704105456801020136015.侧送风口的送风量l/s送风口尺寸mr1送风口流速m/s250*1003040507095300*10035455585115400*100456075115150500*100557595145190600*1007090115170230750*10085115145215285900*100100135170255340250*150455570105145300*150507085130170400*1507090115170230500*15085115145215285600*150100135170255340750*1

8、50130170215320430900*150155205255385515400*20090120150230305500*200115150190285380600*200135180230340455750*200170230285430570900*200205275340415685400*250115150190285380500*250145190240355475600*250170230285430570750*250215285355535715900*250255340430640855530*300170230285430570600*3002052756405756

9、85750*300255340430640855900*30031041051577010301000*505575951451901000*75851151452152851000*1001151501902853801000*1251451902403554751000*1501702302854305701000*1752002653305006651000*20023030538057076016. 低压风管尺寸选择表支风管主风管圆形风管直径mm当量短形风管尺寸nim风速m/s风量l/s风速m/s风量l/s3037125200X 75125X 100 125X 125506015025

10、0 X 75 200 X 100 150X 12575100180275 X 100 200 X 125 175X 150100130200375X 100 175X 125 225X 150 200X 175150180230500X100 375X125 300X150 250X175200X 200200240250625X100 475X125 375X150 300X175275X 200225X225250315280575X125 450X150 375X175 325X200275X 225250X250300380300550X150 450X175 400X 200 350

11、X225300X 250275X275400490330675X150 550X175 450X 200 400X225350X 250300X300500600360650X175 550X 200 475X 225 425X250350X 300325X325560720380775X175 650X 200 550X 225 475X250400X 300350X350660840400900X175 750X 200 625X 225 550X250450X 300375X3508001090430850X 200 725X 225 625X 250 525X300425X 35040

12、0X3759501200460975X200 825X 225 725X 250 570X300500X 350425X40010601340480950X225 825X 250 650X 300 550 X350475X 400450X425120015905001075 X 225 925 X 250 725 X 300 625 X 350525X 400475X400130017505301050 X 250 800 X 300 675 X 350 575 X 400525X 450475X475160020005601175X 280 900X 300 750X 350 625X 4

13、00575X 450500X500175022205801000 X 300 825 X 350 700 X 400 625 X 450550X 500525X525215025006101100X 300 900X 350 775X 400 675X 450600X 500550X550225028306401225 X 300 1000 X 350 850 X 400 725 X 450650X 500600X550250031006601100X 350 925 X 400 800X 450 725X 500650X 550625X575275034006801175X 350 1000

14、 X 400 875X 450 775X 500700X 550650X600320037007201300 X 350 1075 X 400 950 X 450 825 X 500750X 550700X600340041007401425X 350 1175X 4001025X 450 750X 500800X 550750X600360046007601275 X 4001100 X 450 975 X 500 875 X 550800X 600725X650390049007801375 X 4001175 X 4501225 X 500 925 X 550850X 600775X65

15、0430053008101475X4001275X4501100X 5001000X 550900X 600825X650470057508301600X4001350X4501200X 5001075X 550975X 600900X650510063008601725X4001450X4501275X 5001125X 5501025X 600 950X650550069008801825 X 400 1550 X 4501350 X 5001225 X 550425X 3501000X 650585075009101950X4001675X4501450X 5001300X 550500

16、X 3501050X 650620080009402075X4001775 X4501550X 5001375X 550475X 4001125X 650680084009602200X4001875X4501650X 5001450X 550525X 4001200X 650730093009902375 X 400 2000 X 4501 750 X 5001525 X 550525X 4501250X 65080001020010202150X4501850X5001625X 5501475X 600575X 4501125X 75086001090010402250 X 450 200

17、0 X 5001 725 X 5501600 X 6001400X 650 1200X 75092001170010702400X4502100X5001825X 5501650X 6001475X 650 1250X 75098001240010902550 X 450 2200 X 5001925 X 5501750 X 6001550X 650 1300X 750105001320011202350 X 500 2025 X 5501825 X 6001650 X 6501500X 700 1375X 750111001390011402450X5002150X5501900X 6001

18、725X 6501575X 7001450X 750116001470011702575X5002275 X 5502 000 X 6001800 X 6501650X 7001525X 750123001540011902700X5002375X5502100X 6001900X 6501750X 7001575X 750129001620012202900X500 2525 X5502200X 6002000X 6501825X 7001675X 750135001690012403000X 5002750X5502350X 6002075X 6501900X 7001750X 75014

19、2001770012702750X550 2450 X6002000X 6502000X 7001825X 7501700X 800148001830013003000X5502700X6002400X 6502200X 7002000X 7501900X 800155001900013402900X600 2600 X6502300X 7002100X 7502000X 8001700X 900162001970013803000X 6002800X6502500X 7002300X 7502100X 8001800X 900170002050014202700X700 2500 X7502250X 8001950X 9001700X 10001550X 1100180002150014702900X7002650 X7502450X 8002100X 9001900X 10001700X 110017.