本文選題：礦用救生艙 + 空氣調(diào)節(jié)　； 參考：《蘭州理工大學(xué)》2013年碩士論文

【摘要】：我國(guó)的礦難事故頻發(fā),不可避免的對(duì)中國(guó)的國(guó)際形象造成負(fù)面影響。2009年之前,我國(guó)的礦井救援主要是依靠自救器與救護(hù)隊(duì),救援能力非常有限,因此礦難事故遇難的人員數(shù)量很多,給礦井安全生產(chǎn)蒙上了嚴(yán)重陰影。在此背景下,礦用安全救生艙應(yīng)運(yùn)而生。國(guó)家規(guī)定,在十二五期間內(nèi),全國(guó)所有礦井下必須具備緊急避險(xiǎn)系統(tǒng)。 礦用救生艙是緊急避險(xiǎn)系統(tǒng)不可或缺的避難設(shè)備。其中生命保障系統(tǒng)是設(shè)計(jì)礦用救生艙的核心系統(tǒng),對(duì)保障避難人員的生命安全具有重要意義。在生命保障系統(tǒng)里,艙內(nèi)空氣環(huán)境調(diào)節(jié)系統(tǒng)的研究可以指導(dǎo)和優(yōu)化生保系統(tǒng)中其他子系統(tǒng),因此有必要對(duì)艙內(nèi)空氣環(huán)境調(diào)節(jié)系統(tǒng)進(jìn)行系統(tǒng)深入的研究。 艙內(nèi)空間空氣的溫度、速度、相對(duì)濕度、氧氣及有毒有害氣體的分布極大的影響了艙內(nèi)的空氣環(huán)境,是影響避難人員在艙內(nèi)的舒適性的直接因素。本文利用計(jì)算流體力學(xué)軟件AIRPAK對(duì)救生艙內(nèi)的空氣環(huán)境調(diào)節(jié)進(jìn)行數(shù)值模擬并做深入研究。對(duì)艙內(nèi)的溫度場(chǎng)、速度場(chǎng)、相對(duì)濕度場(chǎng)分布進(jìn)行研究時(shí),首先,對(duì)送風(fēng)口形式進(jìn)行比較研究總結(jié)其對(duì)于各場(chǎng)影響的特點(diǎn),并找到適合救生艙內(nèi)空氣調(diào)節(jié)的送風(fēng)口形式；其次,對(duì)送風(fēng)參數(shù)進(jìn)行深入研究,總結(jié)各個(gè)參數(shù)下艙內(nèi)各場(chǎng)的分布特點(diǎn),并選擇合理的送風(fēng)參數(shù)；第三,系統(tǒng)研究五種氣流組織形式下,各場(chǎng)在艙內(nèi)的分布特點(diǎn),為制冷系統(tǒng)設(shè)計(jì)等其他設(shè)計(jì)提供參考依據(jù)。在氧氣及有害氣體方面,介紹了氧氣供應(yīng)和二氧化碳凈化的主要方法,在此基礎(chǔ)上,模擬了五種氣流組織形式下氧氣濃度與二氧化碳?xì)怏w濃度在艙內(nèi)的分布,并總結(jié)了它們的分布特點(diǎn)。 數(shù)值模擬發(fā)現(xiàn),采用百葉式送風(fēng)口形式,送風(fēng)溫度26℃,送風(fēng)速度3.3m/s時(shí)很好的調(diào)節(jié)了艙內(nèi)的空氣環(huán)境。滿足了救生艙的設(shè)計(jì)要求和避難人員的舒適性要求。五種氣流組織形式下的各場(chǎng)分布特點(diǎn)給救生艙的生命保障系統(tǒng)提供了設(shè)計(jì)依據(jù)。
[Abstract]:The frequent occurrence of mine accidents in China inevitably has a negative impact on China's international image. Before 2009, China's mine rescue mainly relied on self-rescue equipment and rescue teams, and its rescue capacity was very limited. As a result, many people died in mine accidents, which has cast a serious shadow on mine safety. In this context, mine safety rescue cabin came into being. State regulations, in the 12-year period, all mines in the country must have an emergency risk-aversion system. Mine rescue cabin is an indispensable refuge equipment for emergency shelter system. Life support system is the core system to design mine lifebuoy, which is of great significance to the safety of asylum. In the life support system, the study of the indoor air conditioning system can guide and optimize the other subsystems of the health care system, so it is necessary to conduct a systematic and in-depth study on the cabin air conditioning system. The distribution of air temperature, velocity, relative humidity, oxygen and poisonous and harmful gases in the cabin greatly affects the air environment in the cabin, and is a direct factor affecting the comfort of the asylum occupants in the cabin. In this paper, the computational fluid dynamics software AIRPAK is used to simulate the air conditioning in the lifebuoy. When studying the distribution of temperature field, velocity field and relative humidity field in the cabin, first of all, the characteristics of the influence of the air outlet on each field are compared and summarized, and the air supply outlet suitable for air conditioning in the lifebuoy is found; secondly, The distribution characteristics of each field in the cabin under each parameter are summarized, and reasonable air supply parameters are selected. Thirdly, the distribution characteristics of each field in the cabin under five air distribution forms are systematically studied. It provides reference for other designs such as refrigeration system design. In the aspect of oxygen and harmful gas, the main methods of oxygen supply and carbon dioxide purification are introduced. On the basis of this, the distribution of oxygen concentration and carbon dioxide gas concentration in the cabin under five kinds of airflow organization forms are simulated. Their distribution characteristics are summarized. The numerical simulation shows that the air environment in the cabin is well adjusted when the air supply temperature is 26 鈩，

本文編號(hào)：1849177