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天然氣鍋爐房電氣防爆設計誤區

發布時間:2022-06-27 04:36:09

❶ 丁戊類廠房,裡面有使用天然氣的鍋爐,設計的可燃氣體探測器 必須採用防爆的嗎

這個燃氣鍋爐的鍋爐房是需要設置防爆的設備的,這個不能採用普通的 ,因為屬於有爆炸可能的場所的。

❷ 電鍋爐房需要防爆設計嗎

當然需要防爆設計。
電鍋的不穩定性因素有很多,有可能因為插電接觸不良引起漏電爆炸,有防爆設計比較好點。
電鍋爐是一種高效、節能、安全可靠、減少環境污染的新型電加熱設備。

❸ 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。

❹ 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。

❺ 天然氣鍋爐房內電氣專業哪些設備需採用防爆型

所有電氣又要用防爆電氣,比如,防爆開關防爆燈,防爆風機等。來自南陽中天防爆

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 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。

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 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.

❿ 建築施工圖中燃氣鍋爐房裡控制室牆體需要做成防爆牆嗎

如未在爆炸區域范圍內無需,即使在我也沒有在相關規定中發現此要求。

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