❶ 燃氣鍋爐房電氣必須防爆嗎
室外燃氣鍋爐電氣設備不用考慮防爆。只有在燃氣分配站區域的電氣設備要考慮防爆。
❷ 鍋爐房防爆窗規范
摘要 由於國家對環保要求的不斷提高,以天然氣作為鍋爐燃料的燃氣鍋爐,已成為目前的普遍選擇,由於燃氣泄漏容易發生爆炸等危險,為了保證其在使用期間的安全,國家規定鍋爐房必須要符合燃氣鍋爐房防爆要求規范。
❸ 鍋爐房設計規范gb50041-2020
《鍋爐房設計標准》GB50041-2020,自2020年7 月1日起實施,原國家標准《鍋爐房設計規范》GB 50041-2008 同時廢止。
我們在建築設計時應注意以下幾點:
一、鍋爐房火災危險性分類:鍋爐房(間)為丁類(燃料可為:煤、重油、輕油、天然氣、城市煤氣等);油箱間、油泵間和重油加熱期間為丙類;燃氣調壓間、氣瓶專用間為甲類。
二、當鍋爐房和其他建築物相連或設置在其內部時,不應設置在人員密集場所和重要部門的上一層、下一層、貼鄰位置以及主要通道、疏散口的兩旁,並應設置在首層或地下一層靠建築物外牆部位。人員密集場所具體建築物見《消防法》第七十三條;此處重要部門是指重要公共(控制)設施,比如指揮中心、消防控制室、消防泵房、計算機房、使用燃氣的廚房、檔案室、通信站、貴賓室、公共浴室、教室、餐廳、影劇院的觀眾廳、會議室、候車室、檔案室、商店、銀行、候診室等部位。
三、燃油、燃氣鍋爐房(間)與相鄰輔助間之間的防火構造除滿足第15.1.3條外,燃氣調壓間門窗還應向外開啟且不應直接通向鍋爐房(間),其地面應採用不發火地面。鍋爐房和其他建築物貼鄰時,應採用防火牆與貼鄰的建築分隔。
四、鍋爐房(間)出入口應滿足第4.3.7條規定。「鍋爐間人員出入口應有1個直通室外」,按《建築設計防火規范》GB50016-2014(2018年版)第8.1.6條條文解釋,疏散門直通室外,即要求人員不需要經過其他房間或使用空間而直接到達建築外。
五、地下、半地下、地下室和半地下室鍋爐房,嚴禁選用液化石油氣或相對密度大於或等於0.75的氣體燃料。當選用天然氣作為燃料時,要註明天然氣的相對密度值。
六、鍋爐房的外牆、樓地面或屋面應有相應的防爆措施,並應有鍋爐間佔地面積10%的泄壓面積,泄壓方向不得朝向人員聚集的場所、房間和人員通道,泄壓處也不得與這些地方相鄰。地下鍋爐房採用豎井泄爆方式時,豎井的凈橫斷面積應滿足泄壓面積的要求。防爆、泄壓措施見《建築設計防火規范》GB50016-2014(2018年版)第3.6節有關內容。
❹ 燃氣鍋爐房鍋爐間電氣設備要求防爆嗎
一般情況下,燃氣鍋爐房的電氣設備是沒有防爆要求的。按要求做好管道的防靜電接地就足夠了。
❺ 鍋爐房防火防爆措施主要有哪些
鍋爐房的外牆、樓地面或屋面,應有相應的防爆措施。並應有相當於鍋爐間佔地面積回10%的泄壓面積答,泄壓方向不得朝向人員聚集的場所、房間和人行通道,泄壓處也不得與這些地方相鄰。
請看規定:
GB50041-2008《鍋爐房設計規范》
15.1.2鍋爐房的外牆、樓地面或屋面,應有相應的防爆措施。並應有相當於鍋爐間佔地面積10%的泄壓面積,泄壓方向不得朝向人員聚集的場所、房間和人行通道,泄壓處也不得與這些地方相鄰。地下鍋爐房採用豎井泄爆方式時,豎井的凈橫斷面積,應滿足泄壓面積的要求。
當泄壓面積不能滿足上述要求時,可採用在鍋爐房的內牆和頂部(頂棚)敷設金屬爆炸減壓板作補充。
註:泄壓面積可將玻璃窗、天窗、質量小於等於120kg/m2的輕質屋頂和薄弱牆等面積包括在內。
15.1.13鍋爐間外牆的開窗面積,除應滿足泄壓要求外,還應滿足通風和採光的要求。
15.3.2鍋爐間、凝結水箱間、水泵間和油泵間等房間的余熱,宜採用有組織的自然通風排除。當自然通風不能滿足要求時,應設置機械通風。
15.3.3鍋爐間鍋爐操作區等經常有人工作的地點,在熱輻射照度大於等於350w/m2的地點,應設置局部送風。
❻ 燃氣鍋爐房設計規范
1、鍋爐房宜為獨立的建築物,當鍋爐房和其他建築物相連或設置在其內部時,嚴禁設置在人員密集場所和重要部門(如公共浴室、教室、餐廳、影劇院的觀眾廳、會議室、候車室、檔案室、商店、銀行、候診室)的上一層、下一層、貼鄰位置以及主要通道、疏散口的兩旁,並應設置在首層或地下室一層靠建築物外牆部位。
2、住宅建築物內,不宜設置鍋爐房。鍋爐房出入口的設置必須符合下列規定:出入口不應少於2個, 但對獨立鍋爐房,當爐前走道總長度小於12m,且總建築面積小於200平方米時,其出入口可設1個;非獨立鍋爐房,其人員出入口必須有1個直通室外。
3、鍋爐房為多層布置時,其各層的人員出入口不應少於2個。樓層上的人員出入口,應有直接通向地面的安全樓梯。
4、鍋爐房通向室外的門應向室外開啟,鍋爐房間內的工作間或生活間的門應向鍋爐間內開啟。依據《鍋爐房設計規范》GB50041進行設計時應注意其使用范圍:以水為介質的蒸汽鍋爐鍋爐房,其單台鍋爐額定蒸發量為1~75t/h、額定出口蒸汽壓力為0.10~3.82MPa(表壓)。
5、鍋爐房的外牆、樓地面或屋頂,應有相應的防爆措施,並應有相當於鍋爐間佔地面積10%的泄壓面積, 泄壓方向不得朝向人員聚集的場所、房間和人行通道, 泄壓處也不得與這些地方相鄰。
❼ 求一位大俠幫忙把論文翻譯成英文~100分 謝謝 燃氣鍋爐房的電氣防爆設計 摘 要:通過分析燃氣鍋爐房事故原
2 accident reason analysis
Analysis of gas boiler room the cause of the accident, there are two possible: boiler ontology explosion, boiler room to explode gas explosion concentration and explosions.
Boiler blast furnace body, because be in, or flue gas mixture in explosive existence, when achieved by fire or explosion limit, boiler heat ignites causing accidents in itself. This point and the national norm of building fire system that conform to the relevant provisions. The actual current boiler proct has considered safe proction measures to avoid it. Qualified gas boiler itself has the explosion-proof process design, such as burner in abnormal situation automatic stop, self-control device also stop output fuel, Gas boiler combustion system higher automatization, including the gas pressure is high, low limit alarm protection, when the control logic where step does not meet the conditions set start corresponding interlock protection.
Avoid the boiler exploded possibility, but still ontology exist above another possibility, can avoid? How to avoid it?
Three measures
In fact in design, according to the boiler design code "and" automatic fire alarm system design code "GB50116-1998 etc standard, we have taken the following measures:
Natural gas pipelines valves, meter, may occur gas leak place, boiler room may proce gas storage proct area [relative density 0.8, it is to be in commonly roof area in these areas], all equipped with combustible gas concentration measurement alarm device, according to combustible gas concentration situation give out sound and light alarm signal and start exhaust fan, when leakage accident concentrations reach explosion limit of the lower limit 50% [this value for reference only], but also immediately close natural air intake ct total intake solenoid valves.
In the boiler room and a natural gas pipeline in and out of the room, the incident, but also with the smoke exhaust fan combustible gas alarm interlocking (start).
Electrical, instrument by cable selection TongXin, not less than 1.5 mm2 minimum section.
Gas radiation tube tube top or the nearby, the lightning rod should be installed above the pipe jacking tip should be not less than 3m, and its scope of protection tube top above not less than 1-m.
Gas pipeline should be static grounding device that, when pipeline as metal materials, and lightning protection or electrical engineering protective grounding wire connected, the measured resistance R more than 4 Ω. In pipe joints, such as the bend, flange, valve and pipe with good place cannot metal contact, also with metal soft line will be both ends jumper.
In the boiler room and a natural gas pipeline in and out of the room door, window take pressure measures.
According to the explosion and fire dangerous environment electrical device design specification "the laws 2.2.2 bar, accord with one of the following conditions may, when the explosion danger area: devin in item 3, in the process of proction use fire equipment near, A combination of these several measures can clearly, electrical equipment selection for the explosion.
At the same time according to the explosion and fire dangerous environment electrical device design specification "the laws 2.2.2 bar, accord with one of the following conditions may, when the explosion danger area devin: the first 2 items, and the highest possible flammable explosive chroma does not exceed 10% of the lower limit, Close air intake ct natural total intake solenoid valves, concentration exceed 10% of the lower limit explosion limit, boiler room near the roof area are gas storage proct area, so lighting lamps and lanterns and switch choosing is explosion-proof type.
4 conclusion
In gas boiler room electrical design, lighting choose explosion-proof lamps, other part adopts the explosion-proof type.
references
[1] boiler design standard. GB50041-1992.
[2] explosion and fire dangerous environment electrical device design standard. GB50058-1992.
[3] the code for fire protection design of buildings. GB50016-2006.
[4] automatic fire alarm system design standard. GB50116-1998.
❽ 燃氣鍋爐房 是不是防暴區
GB50016 第3/3/12說明在有明火的設備附近不劃分為防爆區。城鎮燃氣規范也規定鍋版爐房為丁類權,不劃分防爆區。GB50058第2。2.2也有此規定。因為在這些區域光一個電氣防爆沒有意義,你都有明火了還用得著電氣那點小火花來點燃?所以,一般不劃分為防爆區,但裝備氣體報警,防爆事故通風設施(事故通風要防爆是因為事故是濃度是已達到爆炸極限)。
❾ 跪求一位大俠幫我把一篇論文轉化成英文的~~謝謝~~100分
Fuel gas boiler room electrical explosion-proof design abstract: Through the analysis fuel gas boiler room accident cause factor, as well as to the standard the understanding analysis, has carried on the explicit elaboration to the boiler room electricity explosion-proof design. Key word: Fuel gas; Boiler room; Explosion-proof; Flammable gas density examination foreword Because the fuel gas boiler room superiority and so on its inherent environmental protection are promoting, especially is procing is mad the rich area, massive newly built and the transformation fuel gas boiler room project starts in abundance. However the electrical explosion-proof part explicit design article, the regional designers have not known and the procere are different, the following elaborated that to the standard the understanding, the difficult dispute question which and the solution in the exchange discussion design practice exists, refers for the fellow colleagues. 1 explosion hazard regionalism acts according to GB code "Boiler room Design Standard" GB50041-1992, in electrical part 13.2.2nd: The fuel oil accent presses, between the fuel oil pump house, the powdered coal preparation, the coal breaker and transports the coal corridor and so on to have detonation and the fire risk place rank division, must conform to the present national standards "Detonation And Fire risk Environment Power installation Design Standard" concerned requirements. Xinjiang Korla area natural gas relative density: 0.8, refer to "Detonation And Fire risk Environment Power installation Design Standard" GB50058-1992, the 2.3.1st note 2: The relative density is bigger than 0.75 fire damp stipulation for again in the air gas; Refers to the 2.3.4th explosion hazard regionalism, in seals up in the building to ventilate the bad process units area, [possibly namely the boiler room, the measurement and has in the room which the natural air line passes in and out is 1 area refers to when normal operation presents fire damp mixture environment]. According to "Architectural design Fire protection Standard" GB50016-2006, 3.1.1st, the boiler room is takes the fuel using the natural gas, carries on proction which the combustion makes other to use, belongs to the Ding kind of proction fire hazard, simultaneously rests on the 3.1.1st 4 article explanation②, 「Ding kind」 the 2nd item: Although using the gas, the fuel or the solid carries on the combustion for the fuel, is the open fire proction, but in the fixed equipment internal combustion, is not easy to create the fire. Although also has some explosion accident, but belongs to the physical property to explode generally, like boiler room, lime-roasting, blast furnace workshop and so on proction. The above two standard contrasts see, the open fire proction's boiler room, in the actual movement, divided into 1 area already not to have the too big significance. However, now in the enterprise, for instance the oil gas proction pursue essence security, is through pursues in its flow the human, the thing, the system, the system and so on various essential factor security reliable harmonious unification, causes each kind of harm factor to be at throughout the control state, then draws close graally the essence, the permanent security goal. How then to carry on the electrical design? 2 accident cause factors analyze the fuel gas boiler room accident's reason, has two kind of possibilities: The boiler proper explodes, the boiler room fire damp to achieve the explosion ratio to have the detonation. The boiler proper explodes, is because has the explosivity gaseous mixture existence in the chamber or the flue, when achieves the explosive limit, creates the accident by the open fire or boiler's high temperature ignition. This point is related the article showing match case with "Architectural design Fire protection Standard". The actual present boiler proct had already considered the safety in proction measure avoids. The qualified gas-fired boiler itself has the explosion-proof technological design, like the burner in the unusual circumstance auto-stop, the automatic control installment also stops the output fuel; The gas-fired boiler combustion system automaticity was high, includes the fuel gas pressure to be high, lower limit warning protection and so on, when controlled which step logical judgement didn't satisfy the hypothesis condition, start corresponding interconnection protection. Avoided the boiler proper exploding the possibility, but still had the above other one kind of possibility, whether to avoid? How to avoid?
❿ 鍋爐房對電氣專業有什麼要求
鍋爐房對電氣專業要求:
(1)鍋爐房內應設置防爆、防水燈具。要求在鍋爐操作間內有足夠照度。尤其在壓力表和水位計等重要讀數位置更應設專用照明,避免操作人員失誤:
(2)在燃煤鍋爐及其附屬設備(如送風機、引風機、鼓風機)剛啟動時,往往因多種因素而引起其設備電機的啟動電流超過正常值范圍,無法啟動設備〔或造成空氣開關等燒壞)。所以,應考慮措施降低電機的啟動電流(如採用軟啟動器或變頻器啟動)。爐膛鏈條、給煤(粉)系統需對電機進行調速控制。
(3)為了適應燃油燃氣鍋爐的自動化控制,每台鍋爐宜配備相應的控制櫃。燃煤鍋爐的控制櫃〔或盤)宜設置在操作人員監視范圍之內的位置,可隨時觀察鍋爐壓力、溫度及其附屬設備的運轉情況。
(4)對輸送煤氣、液化石油氣等燃料管道(指金屬管材)應設靜電接地裝置,當鍋爐房設有防雷和電氣系統接地保護網時,可與其相連接,否則應設靜電接地系統。
(5)對燃氣鍋爐的放散管,其頂部應安裝避雷針。
(6)凡對控制和監視鍋爐水位、壓力、憔氣漏氣報警等的儀表裝置均應保證其靈敏度,確保儀表的質量和必要的檢測與校驗手段。
(7)在施工中應對電氣材料(包括動力、照明、自動化儀表系統)嚴格把關。以保證運行安全可靠,尤其對燃氣鍋爐房,往往電氣專業出現短路或其他事故會帶來嚴重的後果。
(8)對於程序控制的電腦板、PLC、變頻器、軟啟動器等控制器,其溫度、壓力、速度、轉速等重要數據,內部程序或連鎖須根據廠家給出的數據進行設置整定。