空調(diào)、防排煙設(shè)計(jì)各個風(fēng)速的確定

1、空調(diào)、防排煙設(shè)計(jì)各個風(fēng)速的確定空調(diào)各個風(fēng)速的確定1. 建筑物冷負(fù)荷概算指標(biāo)2. 送風(fēng)風(fēng)速標(biāo)準(zhǔn)逗留區(qū)之最大允許流速m/s人體狀態(tài)長時間坐短時間坐輕工作重工作應(yīng)用辦公室餐廳商店輕工業(yè)工廠'舞廳冷卻m/s0.100.150.200.30加熱m/s0.200.300.350.453. 送風(fēng)口之最大允許流速m/s應(yīng)用場所盤形送風(fēng)口頂棚送風(fēng)口側(cè)送風(fēng)口廣播室3.04.54.04.52.5醫(yī)院療房4.04.54.55.02.53.0飯店房間'會客室4.05.05.06.02.54.0百貨公司'劇場6.07.56.27.55.07.0教室'圖書館'辦公室5.06.06.0

2、7.53.54.54. 逗留區(qū)流速與人體感覺的關(guān)系流速m/s人體感覺00.080.1270.1270.250.330.380.381.52不舒適，停滯空氣的感覺理想，舒適基本舒適不舒適，可以吹動薄紙對站立者為舒適感之上限用于工和局部空調(diào)5. 空調(diào)房間允許之最大送風(fēng)溫差。C送風(fēng)方式下列房間咼度m6. 不同送風(fēng)方式的送風(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/sm工作區(qū)平均流速m/s換氣次數(shù)1/h側(cè)送百葉風(fēng)口條形風(fēng)口局部孔板送風(fēng)頂棚散流器頂棚孔板送風(fēng)364105155255500.130.180.100.180.100.180.100.250.050/p>

3、7低速風(fēng)管系統(tǒng)的最大允許流速m/s注：1散流器中心距墻不小于1.0m，所服務(wù)的區(qū)域最好為正方形或接近正方形。2選用200x200的散流器，500立每小時，射程4.27m,風(fēng)速3.5m/s，半寬度。3.27x0.8=3.2，總寬度為6x6m的區(qū)域8推薦的送風(fēng)口流速m/s應(yīng)用場所流速m/s播音室戲院住宅'公寓'飯店房間'教室私人辦公室一般辦公室電影院百貨店'上層百貨店、地下1.5 2.52.5 3.52.53.82.54.05.06.05.07.510.09. 低速風(fēng)管系統(tǒng)的推薦和最大流速m/s通風(fēng)、空調(diào)系統(tǒng)風(fēng)管內(nèi)的風(fēng)速及通過部分部件時的迎面風(fēng)速（m/s）表8-1推

4、薦風(fēng)速最大風(fēng)速部位居住建筑公共建筑工業(yè)建筑居住建筑公共建筑工業(yè)建筑風(fēng)機(jī)吸入口3.54.05.04.55.07.0風(fēng)機(jī)出口5.08.06.510.08.012.08.57.511.08.514.0主風(fēng)管3.54.55.06.56.09.04.06.05.58.06.511.0支風(fēng)管3.03.04.54.05.03.55.04.06.55.09.0從支管上接出2.53.03.54.03.04.04.06.05.08.0的風(fēng)管新風(fēng)入口3.54.04.54.04.55.0空氣過濾器1.21.51.751.51.752.0換熱盤管2.02.252.52.252.53.0噴水室2.52.33.03.0部件

5、名稱進(jìn)風(fēng)百葉窗風(fēng)量大于10000m3/h風(fēng)量小于10000m3/h排風(fēng)百葉窗風(fēng)量大于8000m3/h風(fēng)量小于8000m3/h空氣過濾器1.板式過濾器1）黏性濾料2）干式帶擴(kuò)展表面，平板型（粗效）3）褶疊式（中效）4）高效過濾器（HEPA）2.可更換濾料的過濾器迎面風(fēng)速部件名稱迎面風(fēng)速2.06.0加熱盤管2.55.02.01.蒸汽和熱水盤管（最小1.0，最大2.58.02.電加熱器8.0)25裸線式參見生產(chǎn)廠家資料肋片管式1.04.0冷卻減濕盤管2.03.0同風(fēng)管風(fēng)空氣噴淋室參見生產(chǎn)廠家資料速噴水型參見生產(chǎn)廠家資料W3.8填料型6.09.01.3高速噴水型2.51.00.81.8暖通空調(diào)部件的典

6、型設(shè)計(jì)風(fēng)速（m/s）表8-2卷繞型黏性濾料卷繞型干式濾料3.電子空氣過濾器電離式1、高速送風(fēng)系統(tǒng)中風(fēng)管的最大允許風(fēng)速，按表8-4采用。高速送風(fēng)系統(tǒng)中風(fēng)管的最大允許風(fēng)速表8-4風(fēng)量范圍（m3/h）最大允許風(fēng)速（m3/h）風(fēng)量范圍（m3/h）最大允許風(fēng)速（m3/h）1000006800030225001700020.5680004250025170001000017.5125002250022.510000505015通風(fēng)空調(diào)風(fēng)管和出風(fēng)口的最大允許風(fēng)速（m/s）表8-3室內(nèi)允許噪聲級（dB）干管支管風(fēng)口25353.04.0W2.0W0.835504.07.02.03.00.81.550656.07

7、.03.05.01.52.565858.012.05.08.02.53.5百葉風(fēng)口葉片間的氣流速度增加10%,噪聲的聲功率級將增加2dB，若流速增加一倍，噪聲的聲功率級約增加16dB。對于出口處無障礙敞開風(fēng)口，表中的出風(fēng)口速度可以提高1.52.0倍。10. 以噪音標(biāo)準(zhǔn)控制的允許送風(fēng)流速m/s應(yīng)用場所流速m/s圖書館，廣播室住宅，公寓，私人辦公室，醫(yī)院房間銀行，戲院，教室，一般辦公室，商店，餐廳工廠，百貨公司，廚房1.752.52.54.04.05.05.07.511. 回風(fēng)格棚的推薦流速m/s位置近座位逗留區(qū)以上門下部門上部工業(yè)用流速m/s233443>=412. 通風(fēng)系統(tǒng)之流速m/s系

8、統(tǒng)商業(yè)工業(yè)低速送風(fēng)、最大流速送風(fēng)'一般流速回風(fēng)'最大流速回風(fēng)、一般流速13611107.5913111313913高速'般13132513. 百葉窗的推薦流速m/s位置新風(fēng)回風(fēng)減濕器正面減溫器旁通加熱器旁通流速m/s2.5466247.51257.514. 各風(fēng)口的送風(fēng)量頂棚散流器送風(fēng)量l/s尺寸mm送風(fēng)流量m/s1.01.52.02.53.755.0250*250507095120175235300*30070100135170255340350*35090140185230350465400*400120180240295440590500*500190280380

9、470710945600*6002704105456801020136015. 側(cè)送風(fēng)口的送風(fēng)量l/s送風(fēng)口流速m/s送風(fēng)口尺寸mm1.52.02.53.755.0250*1003040507095300*10035455585115400*100456075115150500*100557595145190600*1007090115170230750*10085115145215285900*100100135170255340250*150455570105145300*150507085130170400*1507090115170230500*15085115145215285600

10、*150100135170255340750*150130170215320430900*150155205255385515400*20090120150230305500*200115150190285380600*200135180230340455750*200170230285430570900*200205275340415685400*250115150190285380500*250145190240355475600*250170230285430570750*250215285355535715900*250255340430640855530*30017023028543

11、0570600*300205275640575685750*300255340430640855900*30031041051577010301000*505575951451901000*75851151452152851000*1001151501902853801000*1251451902403554751000*1501702302854305701000*1752002653305006651000*20023030538057076016. 低壓風(fēng)管尺寸選擇表支風(fēng)管主風(fēng)管圓形風(fēng)管直徑mm當(dāng)量短形風(fēng)管尺寸mm風(fēng)速m/s風(fēng)量l/s風(fēng)速m/s風(fēng)量l/s3037125200X75125X

12、100125X1252.5503.060150250X75200X100150X12575100180275X100200X125175X1503.0100130200375X100175X125225X150200X1751504.0180230500X100375X125300X150250X175200X200200240250625X100475X125375X150300X175275X200225X2254.0250315280575X125450X150375X175325X200275X225250X2503005.0380300550X150450X175400X200350

13、X225300X250275X275400490330675X150550X175450X200400X225350X250300X300500600360650X175550X200475X225425X250350X300325X325560720380775X175650X200550X225475X250400X300350X3505.06606.0840400900X175750X200625X225550X250450X300375X3508001090430850X200725X225625X250525X300425X350400X3759501200460975X200825

14、X225725X250570X300500X350425X40010601340480950X225825X250650X300550X350475X400450X425120015905001075X225925X250725X300625X350525X400475X400130017505301050X250800X300675X350575X400525X450475X47516007.520005601175X280900X300750X350625X400575X450500X5006.0175022205801000X300825X350700X400625X450550X500

15、525X525215025006101100X300900X350775X400675X450600X500550X550225028306401225X3001000X350850X400725X450650X500600X550250031006601100X350925X400800X450725X500650X550625X57527509.034006801175X3501000X400875X450775X500700X550650X600320037007201300X3501075X400950X450825X500750X550700X600340041007401425X3

16、501175X4001025X450750X500800X550750X600360046007601275X4001100X450975X500875X550800X600725X6507.5390049007801375X4001175X4501225X500925X550850X600775X650430053008101475X4001275X4501100X5001000X550900X600825X650470057508301600X4001350X4501200X5001075X550975X600900X650510010.063008601725X4001450X45012

17、75X5001125X5501025X600950X650550069008801825X4001550X4501350X5001225X550425X3501000X650585075009101950X4001675X4501450X5001300X550500X3501050X650620080009402075X4001775X4501550X5001375X550475X4001125X6509.0680084009602200X4001875X4501650X5001450X550525X4001200X650730093009902375X4002000X4501750X5001

18、525X550525X4501250X65080001020010202150X4501850X5001625X5501475X600575X4501125X75086001090010402250X4502000X5001725X5501600X6001400X6501200X750920011.01170010702400X4502100X5001825X5501650X6001475X6501250X75010.098001240010902550X4502200X5001925X5501750X6001550X6501300X750105001320011202350X5002025X

19、5501825X6001650X6501500X7001375X750111001390011402450X5002150X5501900X6001725X6501575X7001450X750116001470011702575X5002275X5502000X6001800X6501650X7001525X750123001540011902700X5002375X5502100X6001900X6501750X7001575X750129001620012202900X5002525X5502200X6002000X6501825X7001675X75013500169001240300

20、0X5002750X5502350X6002075X6501900X7001750X750142001770012702750X5502450X6002000X6502000X7001825X7501700X80011.0148001830013003000X5502700X6002400X6502200X7002000X7501900X8001550012.01900013402900X6002600X6502300X7002100X7502000X8001700X900162001970013803000X6002800X6502500X7002300X7502100X8001800X900170002050014202700X7002500X7502250X8001950X9001700X10001550X110018