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我國北方地區(qū)冬季嚴(yán)寒，城市中多采用集中供熱向用戶供暖。 It is very cold in the winter in northern china. District heating system is adopted in city for urban users. 近三十年，無論是在供熱規(guī)模還是供熱技術(shù)方面，集中供熱事業(yè)有很大的發(fā)展。 In in recent thirty years, district heating system has developed greatly in both scale and technology. 隨著國民經(jīng)濟(jì)的快速發(fā)展，節(jié)能工作日益受到重視。 With the rapid development of national economy, more and more attention has been paid to the energy conservation work. 很多研究者在集中供熱節(jié)能方面做了很多的工作和努力，提出了分布式供熱系統(tǒng)。 Many researchers have made a lot of efforts to energy-saving in district heating and proposed distributed heating system. 分布式供熱系統(tǒng)將傳統(tǒng)的供熱系統(tǒng)的單一動力一分為三， In the distributed heating system,the single dynamic of the traditional heating system is divided into three places . 這種將動力分散后的供熱系統(tǒng)能夠部分減少甚至全部消除在調(diào)節(jié)閥上的能耗， 達(dá)到節(jié)約能源的目的。 The power-distributed heating system can partly reduce or even completely eliminate the energy consumption of control valves to save energy resources. 本論文在對傳統(tǒng)的供熱管網(wǎng)能耗分析的基礎(chǔ)上，對分布式供熱系統(tǒng)進(jìn)行了分析及研究。 On the basis of analyzing the energy consumption of traditional heating pipe network,distributed heating system is analysed and studied in this paper. 本課題主要是對變速泵的動力分布式供熱系統(tǒng)——分布式變頻供熱系統(tǒng)的研究。 This thesis focuses on dynamic distributed district heating system for variable speed pumps--distributed variable frequency pump heating system. 對案例中的典型枝狀管網(wǎng)進(jìn)行分析、計算。 The typical branched network in cases is analyzed and calculated. 從管網(wǎng)的穩(wěn)定性、調(diào)節(jié)性和節(jié)能效果三方面對動力分布式系統(tǒng)進(jìn)行討論。 Distributed heating system is discussed from the three aspects:adjustability ,stability and energy-saving effect of pipe networks. 最后對傳統(tǒng)供熱系統(tǒng)和分布式系統(tǒng)的初投資情況進(jìn)行了經(jīng)濟(jì)性分析。 Finally,the economy analysis is made on the initial investment of traditional heating system and distributed heating system. 就我國目前國情來看，我國節(jié)能工作任重道遠(yuǎn)。 Judging from the actual conditions of present china,China still shoulder heavy responsibilities on energy conservation work. 因此，加強(qiáng)對分布式供熱系統(tǒng)的研究有助于我國集中供熱事業(yè)的發(fā)展。 Therefore,the research on distributed heating system is helpful to the development of district heating system in our country. 本課題意在找到適合于工程實(shí)際的方法，以便對分布式系統(tǒng)的設(shè)計、運(yùn)行、管理工作給出重要的指導(dǎo)意見 Our aim is to find a method suitable for practical engineering,so that guidance on design,operation and management of distributed heating system can be suggested. |
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