【摘要】：為了更好的熄滅火災,提高滅火效率,本文采用單一變量法和正交試驗法對S型氣溶膠滅火劑配方進行優(yōu)化。并對優(yōu)化后的配方進行性能測試,主要包括滅火性能、燃燒性能和安全及貯存性能。并對其影響因素對滅火時間的影響進行分析,主要研究了以下六個方面:空間位置、滅火劑用量、滅火劑用量分配、油池直徑大小、溫度和濕度。研究了一種智能滅火裝置與之聯(lián)用,可以實現(xiàn)自動化滅火。另外,運用FDS仿真軟件對S型氣溶膠滅火劑的煙氣擴散規(guī)律進行研究。得到以下結(jié)論:(1)采用正交試驗方法確定粘合劑和調(diào)節(jié)劑的比重,對硝酸鍶和硝酸鉀比例進行一系列實驗,加入降溫物質(zhì)進行實驗,確定試驗配方為硝酸鍶40%,硝酸鉀27%,雙氰胺26%,酚醛樹脂3%,鎂粉1%,六次甲基四胺1%,草酸鉀2%。(2)銅片失重率0.059%,鋁片失重率0.307%,得出配方的抗腐蝕性能很好。固體沉降物進行絕緣性能測試結(jié)果125MΩ,絕緣性能良好。紅外測溫最高燃燒溫度不到600℃,溫度遠低于國標。摩擦感度、撞擊感度、熱安定性測試均為零,沒有任何發(fā)光發(fā)煙現(xiàn)象。分別對A類火、B類火進行滅火測試,滅火效率高。(3)分別對空間位置、滅火劑用量、滅火劑用量分配、油池直徑大小、溫度和濕度六個影響因素進行研究,為提高滅火效率提供幫助。設計智能化自動滅火裝置,該自動滅火系統(tǒng),滅火室70cm×45cm×55cm,撲滅直徑為4cm的油池火,感應期27s,探測到火災的同時啟動滅火動作實施滅火,滅火時間15s。(4)用FDS模擬梯度火實驗,得到的結(jié)論與實驗結(jié)果有著相同的趨勢,用FDS模擬空間位置和滅火濃度對氣溶膠滅火時間的影響,跟實驗結(jié)果一致。
[Abstract]:In order to better extinguish fire and improve fire extinguishing efficiency, the formulation of S-type aerosol fire extinguishing agent was optimized by single variable method and orthogonal test method. The optimized formula was tested, including fire extinguishing performance, combustion performance, safety and storage performance. The influence factors on the fire extinguishing time were analyzed, and the following six aspects were studied: space location, amount distribution of extinguishing agent, diameter of oil tank, temperature and humidity. A kind of intelligent fire extinguishing device combined with it is studied, which can realize automatic fire extinguishing. In addition, FDS simulation software is used to study the smoke diffusion law of S type aerosol extinguishing agent. The main conclusions are as follows: (1) the specific gravity of binder and regulator was determined by orthogonal test method. A series of experiments were carried out on the ratio of strontium nitrate and potassium nitrate, and the experiment was carried out by adding a cooling substance. The experimental formula is strontium nitrate 40, potassium nitrate 27, dicyandiamide 26, phenolic resin 3, magnesium powder 1, hexamethylenetetramine 1, potassium oxalate 2. (2) the weight loss rate of copper sheet is 0.059%, the weight loss rate of aluminum sheet is 0.307%, and the corrosion resistance of the formula is very good. The insulation property of the solid precipitate is 125m 惟, and the insulation property is good. The highest combustion temperature is less than 600 鈩，

本文編號：2133931