本文關(guān)鍵詞： 水電站 主廠房 機(jī)電設(shè)備 散熱量 對(duì)流換熱表面?zhèn)鳠嵯禂?shù) 輻射換熱當(dāng)量表面?zhèn)鳠嵯禂?shù) 散熱量指標(biāo)　出處：《西安建筑科技大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：水電站（蓄能電站）廠房的熱（冷）負(fù)荷主要包括電站建筑圍護(hù)結(jié)構(gòu)的得（失）熱量和電站內(nèi)各種機(jī)電設(shè)備的散熱量。在某種程度上，機(jī)電設(shè)備的散熱量是影響廠房室內(nèi)溫度的主要內(nèi)在因素。因此，正確的計(jì)算電站機(jī)電設(shè)備散熱量，對(duì)指導(dǎo)電站的通風(fēng)空調(diào)設(shè)計(jì)有著重要的意義。 目前，《水電站機(jī)電設(shè)計(jì)手冊(cè)——采暖通風(fēng)與空調(diào)》中對(duì)電站機(jī)電設(shè)備散熱量的計(jì)算公式的參考依據(jù)是十幾年前電站內(nèi)機(jī)電設(shè)備相關(guān)數(shù)據(jù)，與現(xiàn)在實(shí)際工程中電站內(nèi)的機(jī)電設(shè)備類型已不完全相符。為了獲得正確的電站機(jī)電設(shè)備散熱量，本文作者作為李安桂教授水電工程熱濕環(huán)境研究團(tuán)隊(duì)骨干之一，于2013年7月、8月（夏季工況）及2014年1月（冬季工況），對(duì)惠州蓄能電站、九龍江邊水電站及大渡河瀑布溝水電站進(jìn)行了測(cè)試。主要測(cè)試了電站機(jī)電設(shè)備壁面溫度、廠房壁面溫度、廠房室內(nèi)空氣溫度、機(jī)電設(shè)備尺寸、廠房尺寸等相關(guān)數(shù)據(jù)。 本文中，作者針對(duì)電站主廠房?jī)?nèi)的機(jī)電設(shè)備，推導(dǎo)得出機(jī)電設(shè)備與空氣間的對(duì)流換熱表面?zhèn)鳠嵯禂?shù)及輻射換熱當(dāng)量表面?zhèn)鳠嵯禂?shù)的計(jì)算公式，同時(shí)分析設(shè)備壁面溫度、廠房?jī)?nèi)空氣溫度對(duì)設(shè)備表面?zhèn)鳠嵯禂?shù)的影響。其次，以發(fā)電機(jī)層為例，，計(jì)算分析了惠州蓄能電站、九龍江邊水電站及大渡河瀑布溝水電站主機(jī)間內(nèi)機(jī)電設(shè)備的散熱量。 本文提出了電站機(jī)電設(shè)備面積散熱量指標(biāo)、體積散熱量指標(biāo)、總裝機(jī)容量散熱量指標(biāo)，并對(duì)惠州蓄能電站、九龍江邊水電站、大渡河瀑布溝水電站的主廠房發(fā)電機(jī)層、中間層、水輪機(jī)層、蝸殼層機(jī)電設(shè)備的面積散熱量指標(biāo)、體積散熱量指標(biāo)、總裝機(jī)容量散熱量指標(biāo)進(jìn)行計(jì)算。 由于時(shí)間原因，研究小組只對(duì)惠州蓄能電站、九龍江邊水電站、大渡河瀑布溝水電站這3個(gè)電站進(jìn)行了測(cè)試，要進(jìn)一步獲得正確、合理的電站機(jī)電設(shè)備散熱量，還需要進(jìn)行較多數(shù)量的水電站現(xiàn)場(chǎng)測(cè)試，根據(jù)工程實(shí)踐，總結(jié)工程經(jīng)驗(yàn)，獲得水電站機(jī)電設(shè)備散熱量的合理、科學(xué)的計(jì)算方法。
[Abstract]:The heat (cooling) load of hydropower station (storage power station) plant mainly includes the heat gain (loss) of the enclosure structure of the power station and the heat loss of various mechanical and electrical equipment in the power station. To some extent. The heat emission of electromechanical equipment is the main internal factor that affects the indoor temperature of the workshop. Therefore, it is of great significance to correctly calculate the heat loss of the electromechanical equipment of the power station to guide the design of the ventilation and air conditioning of the power station. At present, the reference basis for the calculation formula of heat loss of electromechanical equipment in the Manual of Electromechanical Design of Hydropower Station-heating, ventilation and Air-conditioning is the relative data of electromechanical equipment in power station more than ten years ago. In order to obtain the correct heat emission of the electromechanical equipment in power station, the author is one of the backbone of the research team of thermal and wet environment of Professor Li Angui hydropower project. On July 2013, August (summer condition) and January 2014 (winter condition), Huizhou storage power station. The wall temperature of the electromechanical equipment, the wall temperature of the factory building, the indoor air temperature of the factory building, and the size of the electromechanical equipment are mainly tested in the Jiulong River side Hydropower Station and the Dadu River Pubugou Hydropower Station. Workshop size and other relevant data. In this paper, the author deduces the calculation formulas of heat transfer coefficient of convection heat transfer surface and equivalent surface heat transfer coefficient of radiation heat transfer between mechanical and electrical equipment and air in view of the electromechanical equipment in the main building of power station. At the same time, the influence of the wall temperature and the air temperature on the heat transfer coefficient of the equipment surface is analyzed. Secondly, taking the generator layer as an example, the Huizhou storage power station is calculated and analyzed. Heat dissipation of mechanical and electrical equipment in mainframe of Jiulong River side Hydropower Station and Dadu River Pubugou Hydropower Station. In this paper, the area heat dissipation index, volume heat dissipation index and total installed capacity heat dissipation index of the electromechanical equipment of the power station are put forward, and the Huizhou storage power station, the Jiulong River side Hydropower Station, is also given. The area heat dissipation index, volume heat dissipation index and total installed capacity heat dissipation index of the generator layer, middle layer, hydraulic turbine layer and volute layer of the main powerhouse of Pubugou Hydropower Station of Dadu River are calculated. Due to time reasons, the research team only tested Huizhou storage power station, Jiulong River side hydropower station and Dadu River Pubugou hydropower station, which should be further correct. It is necessary to carry out a large number of field tests of hydropower stations in order to obtain a reasonable and scientific calculation method for heat loss of electromechanical equipment of hydropower stations. According to the engineering practice and summing up the engineering experience, a reasonable and scientific calculation method of heat loss of electromechanical equipment of hydropower stations is obtained.
【學(xué)位授予單位】：西安建筑科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TV734

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本文編號(hào)：1472270