【摘要】：隨著集中供暖系統(tǒng)在我國(guó)的不斷發(fā)展，供熱熱網(wǎng)的能耗問(wèn)題受到越來(lái)越多的關(guān)注。雖然近幾年我國(guó)城鎮(zhèn)集中供熱系統(tǒng)的規(guī)模日益擴(kuò)大，供熱企業(yè)的管理水平也有所提高，但是總體上供熱行業(yè)的能源浪費(fèi)現(xiàn)象依然十分嚴(yán)重。主要原因是在于我國(guó)煤炭與電能價(jià)格制度的不合理，很多措施節(jié)能卻不節(jié)錢。同時(shí)，傳統(tǒng)的供熱系統(tǒng)能耗計(jì)算與比較方法在理論上有很多不嚴(yán)密的地方，在利用節(jié)能量評(píng)估經(jīng)濟(jì)效果的時(shí)候，，會(huì)引起爭(zhēng)議。本文以哈爾濱市某集中供熱系統(tǒng)設(shè)置分布式水泵供熱方案為工程背景，研究了分布式水泵供熱系統(tǒng)節(jié)能率和零壓差點(diǎn)之間的關(guān)系，并對(duì)系統(tǒng)的經(jīng)濟(jì)性進(jìn)行了分析，指導(dǎo)實(shí)際工程的設(shè)計(jì)與應(yīng)用。 首先，通過(guò)將傳統(tǒng)設(shè)計(jì)方法的循環(huán)水泵輸送能耗與節(jié)流閥和分布式水泵并存的管網(wǎng)系統(tǒng)、分布式水泵系統(tǒng)保持臨界零壓差狀態(tài)這兩種形式的水泵輸送能耗進(jìn)行對(duì)比分析，從而得到了分布式水泵供熱系統(tǒng)節(jié)能率的計(jì)算方法。 其次，依據(jù)零壓差點(diǎn)與熱源循環(huán)水泵之間的壓差，提出了37種分布式水泵的設(shè)置方案。分析了37種方案的節(jié)能率、分布式水泵站的數(shù)量隨熱源循環(huán)水泵揚(yáng)程的變化曲線，對(duì)分布式水泵方案的可行性進(jìn)行了定性分析，確定了分布式水泵方案的優(yōu)選區(qū)域。 最后，建立了分布式水泵供熱系統(tǒng)經(jīng)濟(jì)性比較的計(jì)算模型，分析了系統(tǒng)初投資、運(yùn)行費(fèi)用的構(gòu)成，從而得到系統(tǒng)折算年費(fèi)用。對(duì)優(yōu)選區(qū)域內(nèi)的分布式水泵方案的經(jīng)濟(jì)性進(jìn)行了分析，計(jì)算了方案的初投資、運(yùn)行費(fèi)用和折算年費(fèi)用，從而選擇出經(jīng)濟(jì)較優(yōu)的方案，為今后類似的改造工程積累了較多的經(jīng)驗(yàn)。
[Abstract]:With the continuous development of central heating system in China, more and more attention has been paid to the energy consumption of heat supply network. Although the scale of central heating system in China has been expanding in recent years, the management level of heating enterprises has been improved, but the energy waste of heating industry is still very serious. The main reason is that In China, the price system of coal and electric energy is unreasonable, many measures are energy-saving but not money. At the same time, the traditional heating system energy consumption calculation and comparison method has many imprecise places. It will cause controversy when using the energy saving energy to evaluate the economic effect. In this paper, a central heating system in Harbin is set up distributed water. The pump heating scheme is the project background. The relationship between the energy saving rate and the zero pressure difference between the distributed pump heating system is studied, and the economy of the system is analyzed to guide the design and application of the actual project.
First, through the comparison and analysis of the energy consumption of the two forms of water pump in the distributed pump system, the traditional design method of circulating water pump transport energy consumption and the coexistence of throttle valve and distributed water pump system, the distributed pump system maintains the critical zero pressure difference state, thus the calculation method of the energy saving rate of the distributed pump heat supply system is obtained.
Secondly, according to the difference between the zero pressure difference and the pressure difference between the circulating water pump of the heat source, 37 kinds of distributed pumps are put forward. The energy saving rate of the 37 schemes, the change curve of the quantity of the distributed pump station with the water pump head of the heat source are analyzed, the feasibility of the distributed pump scheme is qualitatively analyzed, and the distributed pump scheme is determined. The preferred area.
Finally, the calculation model of the economic comparison of the distributed pump heating system is set up, the initial investment and the composition of the operating cost are analyzed, and the annual cost of the system is calculated. The economy of the distributed pump scheme in the selected area is analyzed, and the initial investment, the operating cost and the conversion cost are calculated. The better economic scheme has accumulated more experience for similar reconstruction projects in the future.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TU995

【參考文獻(xiàn)】

相關(guān)期刊論文 前3條

1 路錦程;范亞偉;;分布式水泵供熱系統(tǒng)的運(yùn)行工況分析[J];建筑節(jié)能;2010年07期

2 孫海霞;刁治國(guó);李德英;;分布式變頻泵供熱系統(tǒng)的控制策略研究[J];建筑節(jié)能;2012年06期

3 黃文,管昌生;城市集中供熱研究現(xiàn)狀及發(fā)展趨勢(shì)[J];國(guó)外建材科技;2004年05期

本文編號(hào)：2129460