本文選題：熱電機組 + 蓄熱裝置　； 參考：《華北電力大學(xué)》2014年碩士論文

【摘要】：當(dāng)前,社會經(jīng)濟不斷地發(fā)展,人民生活水平日漸提高,各行各業(yè)不斷增加的燃料消耗量所造成的環(huán)境污染問題越來越嚴(yán)重,熱電聯(lián)產(chǎn)作為一種既發(fā)電又供熱具有能源利用效率高、對環(huán)境污染小以及經(jīng)濟效益好的節(jié)能發(fā)電技術(shù)也逐漸承擔(dān)著電網(wǎng)調(diào)峰的任務(wù)。鑒于供熱機組運行中既發(fā)電又供熱的特點,本文研究了在不影響機組電網(wǎng)調(diào)峰負(fù)荷的情況下通過增設(shè)蓄熱裝置來調(diào)節(jié)供熱高峰且拉開熱負(fù)荷與電負(fù)荷耦合關(guān)系的系統(tǒng)調(diào)峰運行方式,并以220MW供熱機組的實際運行數(shù)據(jù)作為案例分析和進行熱經(jīng)濟性方面的計算,探索該方案的可行性。在案例分析中,本文首先制定供熱機組增設(shè)蓄熱裝置的系統(tǒng)調(diào)峰運行方式,即在不影響機組電力負(fù)荷的情況下通過蓄熱裝置儲存機組夜晚富余的熱量用來填補白天供熱的不足,然后通過熱力系統(tǒng)的變工況計算得到機組增設(shè)蓄熱裝置后運行的各參數(shù)數(shù)據(jù),最后進行全廠熱經(jīng)濟性指標(biāo)的計算比較,計算的結(jié)果表明,機組在夏季低參數(shù)、低負(fù)荷下應(yīng)用蓄熱裝置參與電力調(diào)峰并削平供熱負(fù)荷的運行方式是不夠經(jīng)濟的,其適合在冬季高參數(shù)的工況下運行,可以降低煤耗率和耗煤量,提高全廠熱效率,如此供熱機組增加蓄熱裝置不僅可以調(diào)節(jié)和平衡機組的供電負(fù)荷和供熱負(fù)荷,減小機組在電力調(diào)峰過程中工況的頻繁波動對系統(tǒng)設(shè)備壽命的影響,有利于機組的安全運行,而且在一定程度上可以提高電廠運行的經(jīng)濟效益。
[Abstract]:At present, with the continuous development of social economy, the living standards of the people are improving day by day, and the environmental pollution caused by the incessant increase in fuel consumption in all walks of life is becoming more and more serious. The cogeneration of heat and power, as a kind of energy efficiency, has high energy efficiency, low pollution to the environment and good economic benefit, which is also gradually taking on the task of peak shaving of power grid. In view of the characteristics of both power generation and heating in the operation of heating units, This paper studies the peak-shaving operation mode of the system by adding heat storage device to adjust the heating peak and pull off the coupling relationship between heat load and electric load without affecting the peak load of unit network. Taking the actual operation data of 220 MW heating unit as a case study and the calculation of thermal economy, the feasibility of the scheme is explored. In the case study, this paper first formulates the system peak-shaving operation mode of adding heat storage device to the heat supply unit, that is, using the heat storage device to store the surplus heat of the unit at night to fill the deficiency of the daytime heat supply without affecting the power load of the unit. Then, the parameters data of the unit after adding the heat storage unit are obtained by the calculation of the thermodynamic system under the variable working conditions. Finally, the thermal economic index of the whole plant is calculated and compared. The calculation results show that the unit has low parameters in summer. It is not economical to use the heat storage device to take part in the power peak shaving and flattening the heating load under low load. It is suitable for running under the condition of high parameters in winter, which can reduce the coal consumption rate and coal consumption, and improve the thermal efficiency of the whole plant. Thus increasing the heat storage unit can not only adjust and balance the power supply load and heating load of the unit, but also reduce the influence of frequent fluctuation of the working condition of the unit in the process of power peak shaving on the life of the system equipment, which is beneficial to the safe operation of the unit. To a certain extent, the economic benefit of power plant operation can be improved.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM621

【參考文獻】

相關(guān)期刊論文 前10條

1 黃護林,施明恒,葛新石;一種新型集熱-儲存整體式太陽能熱水系統(tǒng)[J];東南大學(xué)學(xué)報;1998年05期

2 呂學(xué)勤;劉剛;黃自元;;電力調(diào)峰方式及其存在的問題[J];電站系統(tǒng)工程;2007年05期

3 張洪濟，邵四立，，童明偉，李忠朋;中壓下三維內(nèi)翅管中的上升沸騰兩相流與傳熱[J];工程熱物理學(xué)報;1995年02期

4 滿亞輝;吳文健;;Na_2SO_4·10H_2O相變過程及其相變潛熱的計算[J];國防科技大學(xué)學(xué)報;2009年02期

5 尚松林,黃榮生;蓄熱器容積計算分析[J];包鋼科技;1996年04期

6 姚斌，胡泰來，曾漢才;國外幾種新型調(diào)峰方式[J];湖北電力;1996年02期

7 周根明，姚壽廣;蒸汽蓄熱器容積及蓄熱量的計算方法[J];華東船舶工業(yè)學(xué)院學(xué)報;1994年01期

8 崔海亭,袁修干,侯欣賓;蓄熱技術(shù)的研究進展與應(yīng)用[J];化工進展;2002年01期

9 劉玲,葉紅衛(wèi);國內(nèi)外蓄熱材料發(fā)展概況[J];蘭化科技;1998年03期

10 朱梅,徐獻芝,楊基明;調(diào)峰電站及其蓄能技術(shù)[J];節(jié)能;2004年05期

本文編號：2030636