基于半导体制冷原理的矿井局部降温技术基础研究

发布时间：2018-02-09 06:20

本文关键词： 煤矿安全降温技术降温设备　出处：《安徽理工大学》2013年硕士论文　论文类型：学位论文

【摘要】：在我国能源结构中煤炭占主要地位,众所周知,煤炭的产量直接影响我国的经济发展情况,但是我国煤炭大多存储于千米以下,开采困难,面临严重的地质灾害。即高地温、高地压、高瓦斯。高地温主要体现在暴露围岩的温度升高,矿井井下空气温度升高。这些问题严重影响煤矿企业的安全、高效的开采,成为制约我国煤矿发展的关键因素之-目前,煤矿对于井下高温的治理方法主要是改变通风方式、物理降温、减少工作时间、化学降温、隔离热源、空调降温等。其中机械降温效果最为明显,矿井机械降温主要是应用制冷剂制冷的原理,降低矿井井下空气的温度。但是,空调降温还存在一些问题。如占地面积大,严重影响采煤或掘进工作面的通风；噪音较大；采用制冷剂的压缩特性产生冷源,一旦制冷剂泄露,对采煤或掘进工作面造成严重污染；制冷效果相对煤矿企业的要求还有一定的差距。局部降温系统没有达到煤炭企业的要求的主要原因是制冷设备达不到要求。因此本论文将进行新型矿井降温技术的研究,以满足煤矿企业对降温的要求。本论文研究的技术原理为半导体制冷原理,因为半导体制冷有着独到的优势,如制冷设备很小、制冷快、噪音小、能耗少等。本论文通过半导体制冷设备的可行性研究、实验对象的模拟、实验室的验证和现场应用设想四部分构成。制冷设备的可行性研究主要包括半导体制冷设备的设计和理论计算设备的制冷效率。实验对象的模拟主要是理论计算工作面的需冷量大小,与半导体制冷设备的制冷量比较,确定半导体制冷技术的可行性。最后通过实验室试验,确定半导体制冷技术中的半导体制冷设备的型号和技术参数。论文第四部分主要是此技术应用于煤矿中的设想和应用前景。半导体制冷技术在煤矿中的应用需要大量的试验和技术投入,本论文主要是半导体制冷技术应用于煤矿的基础理论研究,为以后的半导体制冷技术在煤矿中的应用提供技术支持。
[Abstract]:Coal occupies the main position in the energy structure of our country. As we all know, the output of coal directly affects the economic development of our country. However, most of the coal in our country is stored below km, so it is difficult to exploit and face serious geological disasters, that is, highland temperature. High ground pressure, high gas. The high ground temperature is mainly reflected in the temperature rise of exposed surrounding rock and the rise of air temperature in underground mine. These problems seriously affect the safety and efficient mining of coal mining enterprises, and become one of the key factors restricting the development of coal mines in China. In coal mines, the main treatment methods for underground high temperature are to change the ventilation mode, reduce physical cooling, reduce working hours, reduce chemical cooling, isolate heat sources, cool air conditioning, etc. Among them, mechanical cooling effect is the most obvious. The cooling of mine machinery is mainly based on the principle of refrigerant refrigeration to reduce the temperature of underground air. However, there are still some problems in cooling air conditioning, such as large area of land, which seriously affects ventilation of coal mining or tunneling face, loud noise, cold source produced by compression characteristics of refrigerant, and once refrigerant leaks, It causes serious pollution to coal mining or tunneling face, and the refrigeration effect is far behind the requirements of coal mining enterprises. The main reason why the local cooling system does not meet the requirements of coal enterprises is that the refrigeration equipment can not meet the requirements. In order to meet the requirements of coal mine enterprises, the technical principle of this paper is semiconductor refrigeration, because semiconductor refrigeration has unique advantages, such as very small refrigeration equipment, fast refrigeration, low noise, less energy consumption and so on. In this paper, the feasibility of semiconductor refrigeration equipment, experimental object simulation, The feasibility study of refrigeration equipment mainly includes the design of semiconductor refrigeration equipment and the refrigeration efficiency of theoretical calculation equipment. The simulation of experimental object is mainly theoretical calculation. The amount of cooling required in the working face, Compared with the refrigeration capacity of semiconductor refrigeration equipment, the feasibility of semiconductor refrigeration technology is determined. The model and technical parameters of semiconductor refrigeration equipment in semiconductor refrigeration technology are determined. Part 4th is mainly about the assumption and application prospect of this technology in coal mine. The application of semiconductor refrigeration technology in coal mine requires a lot of experiments and technical input. This paper is mainly about the basic theory research of semiconductor refrigeration technology applied in coal mine. It provides technical support for the application of semiconductor refrigeration technology in coal mine.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD727.5

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