tn-美國nfpa與中國國家消防規(guī)范比較手冊-資料下載頁
2025-04-16 13:50本頁面
【正文】 定：167。 防煙樓梯間前室、167。 。167。 長度不超過60m的內(nèi)走道可開啟外窗面積不應(yīng)小于走道面積的2%。167。 需要排煙的房間可開啟外窗面積不應(yīng)小于該房間面積的2%。167。 凈空高度小于12m的中庭可開啟的天窗或高側(cè)窗的面積不應(yīng)小于該中庭地面積的5%。167。 排煙窗宜設(shè)置在上方，并應(yīng)有方便開啟的裝置。建議采用GB標(biāo)準(zhǔn)，但針對一些比較重要的公共區(qū)域（比如餐廳、大堂、會議等），超過100m2不管有無自然排煙條件，均考慮機(jī)械排煙。2防煙樓梯間前室或合用前室可以自然排煙167。 防煙樓梯間前室或合用前室，利用敞開的陽臺、凹廊或前室內(nèi)有不同朝向的可開啟外窗自然排煙時該樓梯間可不設(shè)防煙設(shè)施。建議采用GB標(biāo)準(zhǔn)7 NFPA92A 要點(diǎn)NPFA 92 A smoke management concept is divided into Shaft protection and Floor / Zoned protection. NFPA 92 A放排煙概念分豎井保護(hù)法和樓層/區(qū)域保護(hù)法。1. Shaft protection uses Stairwell pressurization system and Elevator hoistway pressurization system。豎井保護(hù)法分樓梯加壓系統(tǒng)和電梯井加壓系統(tǒng)）。 Stairwell pressurization （樓梯加壓）n Pressure across closed door on the fire floor shall have minimum design pressure difference , and should not exceed maximum design pressure difference as per table below。防煙樓梯間, 前室,合用前室,，不高于以下表。Door closer Force 關(guān)門器力度Door Width門寬800mm900mm1000mm1100mm1200mm27 N110 Pa100 Pa90 Pa80 Pa80 Pa35 N10 Pa90 Pa80 Pa70 Pa70 Pa44 N90 Pa80 Pa70 Pa70 Pa70 Pa53 N80 Pa70 Pa70 Pa60 Pa60 Pa62 N80 Pa70 Pa60 Pa50 Pa50 Pan Door opening force is 132 N. 開門力度不大于132N。 n Overpressure relief by barometric dampers with adjustable counterweights, motorized dampers, automatic opening stairwell door or vents, exhaust fan. 余壓泄露可利用？？閥，電動閥，自動開啟門/窗，機(jī)械排風(fēng)機(jī)。 n Stairwell can be with or without vestibules depending on local code. Non pressurized and pressurized vestibules design as per “Design of smoke management systems” handbook, 防煙樓梯間可有或無前室。無加壓前室或加壓前室的設(shè)計(jì)要跟 “Design of smoke management systems” handbook,n Interior and exterior doors open shall be design as per “Design of smoke management systems” handbook. 內(nèi)開外開門的設(shè)計(jì)要跟 “Design of smoke management systems” handbook,Elevator smoke control shall consist of elevator hoistway pressurization system， Pressurised enclosed elevator lobbies, Construction of Smoke tight elevator lobbies and Closing of elevator after automatic recall。 電梯井防煙系統(tǒng)包括電梯井加壓系統(tǒng)，電梯廳加壓系統(tǒng)，電梯廳防煙門，關(guān)閉電梯門。2. Floor / Zoned protection （樓層保護(hù)）Floor or Zoned smoke control should be designed such that the pressure difference between the adjacent nonsmoke zones and smoke zone meet minimum design pressure difference , across closed door and should not exceed maximum design pressure difference as per table below。 樓層 /區(qū)域防排煙系統(tǒng)設(shè)計(jì)要保存有煙/，不高于以下表。Door closerForce 關(guān)門器力度Door Width 門寬800mm900mm1000mm1100mm1200mm27 N110 Pa100 Pa90 Pa80 Pa80 Pa35 N10 Pa90 Pa80 Pa70 Pa70 Pa44 N90 Pa80 Pa70 Pa70 Pa70 Pa53 N80 Pa70 Pa70 Pa60 Pa60 Pa62 N80 Pa70 Pa60 Pa50 Pa50 PaNonsmoke zone shall be pressurized , fire zone shall be vented or exhausted. 無煙區(qū)要加壓送風(fēng)，有煙區(qū)/火災(zāi)區(qū)要排風(fēng)。3. Area of refuge shall be pressurized。避難層/區(qū)必須要加壓送風(fēng)。4. Fire fighter smoke control station or panel shall be provided to monitor status and manual override of pressurization fans , exhaust fans and motorized smoke dampers。排煙系統(tǒng)控制柜要監(jiān)控各送風(fēng)加壓機(jī)器鳳機(jī)，排煙機(jī)器鳳機(jī)，電動送風(fēng)閥，電動防排煙閥。5. Design equations for stairwell pressurization and elevator hoistway pressurization are as per “Design of smoke management systems” handbook。樓梯加壓，電梯井加壓設(shè)計(jì)根據(jù)“Design of smoke management systems” handbook。171。171。171。171。171。結(jié)束171。171。171。171。171
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