供熱管網(wǎng)水力計(jì)算模型研究.pdf

1、華北電力大學(xué)（保定）碩士學(xué)位論文供熱管網(wǎng)水力計(jì)算模型研究姓名：秦芳芳申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：流體機(jī)械及工程指導(dǎo)教師：王松嶺吳正人20081215華北電力大學(xué)碩士學(xué)位論文摘要摘要論文針對(duì)供熱管網(wǎng)實(shí)際情況，建立了通用的供熱管網(wǎng)水力計(jì)算模型并進(jìn)行編程求解。對(duì)節(jié)點(diǎn)方程法進(jìn)行改進(jìn)，構(gòu)造了新的迭代方程式，提高了計(jì)算收斂性。運(yùn)用ⅥsualBasic語(yǔ)言結(jié)合Access數(shù)據(jù)庫(kù)編制了水力計(jì)算軟件，并實(shí)現(xiàn)了管網(wǎng)運(yùn)行工況相關(guān)數(shù)據(jù)的圖形顯示及查詢。通過實(shí)例證明

2、了模型的正確性，算法合理、收斂性好，可為熱網(wǎng)的安全運(yùn)行及設(shè)計(jì)改造提供有效依據(jù)。此外，利用編制的軟件對(duì)多熱源環(huán)狀管網(wǎng)變工況實(shí)例進(jìn)行了水力計(jì)算，得到了管網(wǎng)的管段流量、流速、水頭損失、比摩阻等參數(shù)，并進(jìn)行了詳細(xì)分析。關(guān)鍵詞：供熱管網(wǎng)，水力計(jì)算，節(jié)點(diǎn)方程法，圖論，visualBasicABSTRACTInthep印er，auniVe掩aLlhydr肌liccalcula芏ionalmodelforheat呻ply越姍orkwasestablis

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