【摘要】：煤炭在我國能源消費結(jié)構(gòu)中占有十分重要的位置，是一次能源消耗結(jié)構(gòu)中的主體。然而隨著煤礦開采規(guī)模和煤炭開采量逐年加大，伴隨而來的安全問題也越來越多，其中高溫高濕礦井熱害尤為嚴(yán)重。 傳統(tǒng)礦井降溫技術(shù)中雖然有專家把空氣壓縮式制冷系統(tǒng)應(yīng)用在礦井降溫中，，但是由于空氣壓縮制冷系統(tǒng)應(yīng)用在礦井降溫系統(tǒng)中還面臨工作不可靠和用電安全的難題，因而沒有成功用于井下。并且由于傳統(tǒng)的礦井降溫技術(shù)都存在各自的缺點，不適用于高溫礦井，為了改善礦井高溫高濕的環(huán)境對礦工身體造成的危害，需要進一步研究新方法，新技術(shù)。并獲得了一項中國專利，一種用于煤礦井下局部降溫的裝置，該專利目前已經(jīng)申請成功。 本文詳細介紹了空氣流膨脹減焓自力式煤礦井下降溫系統(tǒng)的工作原理，及該系統(tǒng)與傳統(tǒng)降溫技術(shù)相比的主要優(yōu)點。以礦井掘進工作面為研究對象，在斯托克斯方程組及kε湍流模型的基礎(chǔ)上，利用Fluent軟件對礦井掘進工作面的溫度場和速度場進行計算和模擬，研究送風(fēng)溫度和送風(fēng)速度改變后，礦井掘進面的溫度場和速度場的變化趨勢。再結(jié)合空氣流膨脹減焓自力式煤礦井下降溫系統(tǒng)的工作原理，分析得出合適的送風(fēng)溫度和送風(fēng)速度。 以某一工程設(shè)計為例，結(jié)合計算模擬得出的最佳的送風(fēng)溫度和送風(fēng)速度，計算出系統(tǒng)運行時渦輪冷卻器的制冷量、溫降、空氣流量、進出口壓力等相關(guān)的主要設(shè)備參數(shù)。有了這些參數(shù)，為以后的設(shè)備制造和進一步的研究打好基礎(chǔ)。
[Abstract]:Coal occupies a very important position in China's energy consumption structure and is the main body of primary energy consumption structure. However, with the coal mining scale and the coal mining volume increasing year by year, there are more and more safety problems, especially the heat damage of high temperature and high humidity mine. Although some experts apply air compression refrigeration system to mine cooling in traditional mine cooling technology, however, because air compression refrigeration system is used in mine cooling system, it still faces the problems of unreliable work and safe use of electricity. As a result, it was not successfully used underground. Because the traditional mine cooling technology has its own shortcomings, it is not suitable for high temperature mine. In order to improve the harm to miners caused by high temperature and high humidity environment, it is necessary to further study new methods and techniques. And has obtained a Chinese patent, a device for coal mine local cooling, which has been successfully applied for. This paper introduces in detail the working principle of the air flow expansion reducing enthalpy reducing self-propelled coal mine downhole cooling system and its main advantages compared with the traditional cooling technology. Based on Stokes equations and k 蔚 turbulence model, the temperature field and velocity field of mining face are calculated and simulated by Fluent software. The change trend of temperature field and velocity field of the driving surface of mine. Combined with the working principle of the air flow expansion and enthalpy reduction system, the suitable air supply temperature and velocity are obtained. Taking an engineering design as an example, the main equipment parameters such as cooling capacity, temperature drop, air flow rate and inlet and outlet pressure of turbine cooler are calculated by combining with the best air supply temperature and velocity obtained by simulation. With these parameters, for the future equipment manufacturing and further research to lay a good foundation.
【學(xué)位授予單位】：武漢紡織大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TD727.2

【參考文獻】

相關(guān)期刊論文 前7條

1 陳平;采用壓氣供冷的新型礦井集中空調(diào)系統(tǒng)[J];礦業(yè)安全與環(huán)保;2004年03期

2 孫艷玲,桂祥友;煤礦熱害及其治理[J];遼寧工程技術(shù)大學(xué)學(xué)報;2003年S1期

3 劉云霞,趙遠揚,王尚錦;列車空調(diào)用空氣制冷系統(tǒng)的方案設(shè)計[J];流體機械;2003年06期

4 林韶寧,夏葵,李軍,孫燁,侯予,陳純正;空氣制冷機在飛機空調(diào)系統(tǒng)中的應(yīng)用[J];流體機械;2004年10期

5 劉何清,吳超,王衛(wèi)軍,陳世強;礦井降溫技術(shù)研究述評[J];金屬礦山;2005年06期

6 李敏華,巫江虹;空氣制冷技術(shù)的現(xiàn)狀及發(fā)展探討[J];制冷與空調(diào);2005年02期

7 杜建通;空氣制冷循環(huán)的特性及其在制冷空調(diào)中應(yīng)用的關(guān)鍵技術(shù)[J];低溫與超導(dǎo);1999年03期

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