本文關(guān)鍵詞： 礦井降溫技術(shù) 冷負(fù)荷 通風(fēng)降溫 二次換熱 經(jīng)濟(jì)性分析　出處：《安徽理工大學(xué)》2013年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：隨著采礦工業(yè)的發(fā)展,礦井開(kāi)采深度逐漸增加,綜合機(jī)械化程度不斷提高,地?zé)岷途略O(shè)備向井下空氣散發(fā)的熱量顯著增加,各類(lèi)礦井所面臨的熱害問(wèn)題也越來(lái)越嚴(yán)重,礦內(nèi)高溫、高濕環(huán)境嚴(yán)重影響井下作業(yè)人員的身體健康,礦井熱害逐漸成為與瓦斯、煤塵、頂板、火、水等同樣嚴(yán)重的煤礦井下自然災(zāi)害。而且研究表明,礦井熱害現(xiàn)已成為制約礦井開(kāi)采深度的關(guān)鍵性因素。因此,為給井下創(chuàng)造一個(gè)可承受的工作氣候環(huán)境,必須在礦井的生產(chǎn)周期中全面關(guān)注礦井熱害問(wèn)題,本論文就針對(duì)在礦井正常生產(chǎn)過(guò)程中所要面臨的熱害問(wèn)題,在理論分析和實(shí)際數(shù)據(jù)分析的基礎(chǔ)上,提出幾種新型礦井降溫制冷系統(tǒng),分析各自的特點(diǎn),找出合理的解決方式。 對(duì)井下影響井下熱環(huán)境的主客觀進(jìn)行分析,從以下幾個(gè)方面著手,即圍巖散熱、運(yùn)輸中的煤和矸石散熱、空氣的自壓縮散熱、地下熱水散熱以及人體和機(jī)械設(shè)備的散熱等。在根據(jù)建筑環(huán)境學(xué)中關(guān)于人體熱平衡的相關(guān)知識(shí),綜合評(píng)定井下熱環(huán)境的相關(guān)參數(shù)。 結(jié)合實(shí)際淮南某礦井在生產(chǎn)運(yùn)行中的實(shí)際數(shù)據(jù),再根據(jù)前一部分中的相關(guān)理論關(guān)系式,計(jì)算出影響井下熱環(huán)境的各部分熱源的實(shí)際產(chǎn)熱量,并與通風(fēng)系統(tǒng)結(jié)合。分析通風(fēng)系統(tǒng)對(duì)井下環(huán)境的影響,從而確定整個(gè)礦井機(jī)械降溫系統(tǒng)的功耗,為下面選擇合適的制冷降溫系統(tǒng)做準(zhǔn)備。 分別對(duì)礦井水冷卻空調(diào)降溫系統(tǒng)、低溫空調(diào)降溫系統(tǒng)、冰冷卻空調(diào)降溫系統(tǒng)以及冷熱電聯(lián)產(chǎn)降溫系統(tǒng)進(jìn)行分析,并詳細(xì)說(shuō)明了以上各種系統(tǒng)所涉及的設(shè)備、管道以及系統(tǒng)運(yùn)行的影響因素等。 在前幾部分的基礎(chǔ)之上,結(jié)合現(xiàn)代經(jīng)濟(jì)評(píng)估方法,采用費(fèi)用類(lèi)經(jīng)濟(jì)評(píng)價(jià)方法綜合生產(chǎn)實(shí)際應(yīng)用問(wèn)題對(duì)礦井降溫系統(tǒng)進(jìn)行經(jīng)濟(jì)評(píng)價(jià)。分析每種制冷降溫系統(tǒng)的優(yōu)勢(shì)以及不足之處。 本論文在前人的基礎(chǔ)之上,結(jié)合作者在礦山實(shí)習(xí)中產(chǎn)中所遇到的問(wèn)題,從理論上分析得到礦井冰冷卻空調(diào)降溫系統(tǒng)結(jié)合冷熱電聯(lián)產(chǎn)技術(shù)在實(shí)際運(yùn)行過(guò)程中最為經(jīng)濟(jì),是最理想的礦井制冷降溫系統(tǒng),但是該系統(tǒng)仍然有很多問(wèn)題有待進(jìn)一步解決。
[Abstract]:With the development of mining industry, the mining depth increases gradually, the degree of comprehensive mechanization increases continuously, the heat emitted from geothermal and underground equipment into underground air increases significantly, and the problems of thermal damage in all kinds of mines are becoming more and more serious. The high temperature and high humidity environment in the mine seriously affect the health of the underground workers, and the thermal damage of the mine is gradually becoming a natural disaster in the coal mine as serious as gas, coal dust, roof, fire, water and so on. Mine thermal damage has become a key factor restricting the depth of mine mining. Therefore, in order to create a sustainable working climate environment for underground mines, it is necessary to pay attention to the problem of mine thermal damage in the mine production cycle. On the basis of theoretical analysis and practical data analysis, this paper puts forward several new mine cooling and refrigeration systems, analyzes their respective characteristics and finds out reasonable solutions. The subjective and objective analysis of underground thermal environment is carried out from the following aspects: surrounding rock heat dissipation, coal and gangue heat dissipation in transportation, air self-compression heat dissipation, According to the relevant knowledge of the thermal balance of the human body in the building environment, the relevant parameters of the underground thermal environment are evaluated synthetically in the light of the heat dissipation of the underground hot water and the heat dissipation of the human body and mechanical equipment. Combined with the actual data of Huainan coal mine in production and operation, and according to the relevant theoretical relation formula of the former part, the actual heat production of each part of the heat source which affects the underground thermal environment is calculated. Combined with ventilation system, the influence of ventilation system on underground environment is analyzed to determine the power consumption of the whole mine machinery cooling system, and to prepare for the selection of suitable cooling system below. The cooling system of mine water cooling air conditioning, low temperature air conditioning system, cold air conditioning cooling system and cooling system of cogeneration of cold, heat and electricity are analyzed respectively, and the equipments involved in the above systems are explained in detail. The influencing factors of pipeline and system operation. On the basis of the previous parts, combined with modern economic evaluation methods, The economic evaluation of mine cooling system is carried out by using the cost economic evaluation method. The advantages and disadvantages of each cooling system are analyzed. On the basis of the predecessors, combined with the problems encountered by the author in the mine practice, this paper theoretically analyses the most economical operation of the cold cooling system combined with the cogeneration technology of cold, heat and power in the mine. It is the ideal mine cooling system, but there are still many problems to be solved.
【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：TD727.2

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