利用污水源熱泵加熱室內(nèi)游泳池水的研究
本文關(guān)鍵詞: 污水源熱泵 室內(nèi)游泳池 換熱器面積 污水特性 出處:《哈爾濱工業(yè)大學(xué)》2014年碩士論文 論文類型:學(xué)位論文
【摘要】:城市污水中蘊(yùn)含了較多的低位熱能,充分利用這部分熱能不僅能達(dá)到節(jié)能的目的,而且可以減少污水廢熱排放對城市“熱島效應(yīng)”的影響。近年來,隨著人們對污水源熱泵的研究不斷深入,其應(yīng)用的范圍也逐漸廣泛。酒店生活污水的水質(zhì)情況相對良好,具有較強(qiáng)的可回收性。本文主要針對哈爾濱某高檔酒店的污水排放情況,為其設(shè)計(jì)污水源熱泵系統(tǒng)加熱酒店內(nèi)游泳池水,并研究其運(yùn)行性能。 為了驗(yàn)證系統(tǒng)的可行性,計(jì)算出游泳池負(fù)荷,并推算出酒店內(nèi)污水排放的平均流量。計(jì)算污水溫度在最不利的情況下,,污水中能提取的熱量是否能夠滿足游泳池所需熱量。確定熱泵的運(yùn)行參數(shù),分別對污水側(cè)換熱器和游泳池側(cè)換熱器進(jìn)行設(shè)計(jì),確定殼管式換熱器的結(jié)構(gòu)參數(shù),并確定殼體內(nèi)管束的布局;根據(jù)熱泵運(yùn)行的工況,選擇合適的壓縮機(jī)和電子膨脹閥。 對熱泵的四大部件分別建立數(shù)學(xué)模型,并利用MATLAB軟件編寫模擬仿真程序。對熱泵的設(shè)計(jì)工況進(jìn)行仿真模擬研究,觀察其運(yùn)行工況能否滿足系統(tǒng)設(shè)計(jì)要求。依據(jù)系統(tǒng)運(yùn)行的仿真模擬,在設(shè)計(jì)工況的基礎(chǔ)上,分別分析污水側(cè)換熱器面積、游泳池側(cè)換熱器面積以及污水的熱阻、溫度、流量等因素在合理范圍變化時(shí),系統(tǒng)性能主要參數(shù)的變化規(guī)律。這些規(guī)律可以為實(shí)際工程提供參考。
[Abstract]:There are more low heat energy in municipal sewage, which can not only achieve the purpose of energy saving, but also reduce the influence of waste heat discharge on urban "heat island effect" in recent years. With the development of sewage source heat pump, the application of sewage source heat pump is becoming more and more extensive. The water quality of domestic sewage in hotel is relatively good. The sewage source heat pump system is designed to heat the swimming pool water in the hotel and its performance is studied. In order to verify the feasibility of the system, the load of the swimming pool is calculated, and the average flow of sewage discharged in the hotel is calculated. The temperature of the sewage is calculated under the most adverse conditions. Determine the operating parameters of heat pump, design the sewage side heat exchanger and swimming pool side heat exchanger, determine the structural parameters of shell heat exchanger. The layout of the tube bundle in the shell is determined. According to the operating conditions of the heat pump, select the appropriate compressor and electronic expansion valve. The mathematical models of the four parts of the heat pump are established, and the simulation program is compiled by MATLAB software. The design conditions of the heat pump are simulated and studied. According to the simulation of system operation, the area of sewage side heat exchanger, swimming pool side heat exchanger area and the heat resistance of sewage were analyzed on the basis of the design conditions. When the temperature, flow rate and other factors change in a reasonable range, the main parameters of the system performance change law, these laws can provide a reference for practical engineering.
【學(xué)位授予單位】:哈爾濱工業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:TU83
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