污水源热泵的应用及经济性分析

发布时间：2019-01-17 15:58

【摘要】：污水源热泵系统以其节能性和环保性在国内外受到越来越多的重视,并且对其应用技术也展开了相当多的研究。污水源热泵的应用需要成熟的技术条件,虽然在我国已经有了一些试点项目,但是对于污水源热泵系统能否在市场中得到推广还需要进一步验证。本文结合山东省某有限公司成熟的再生水源热泵技术,建设污水源热泵中心能源站的一个实际工程,通过该试点项目的实际测量的数据,来验证污水源系统的应用的指标。对该工程周边的一个污水处理站的水质进行长期测量,得出可以达到排放标准的再生水水质较好,经过防腐、防生物附着和过滤处理后,便可应用于再生水源热泵系统。结合该工程制冷季和供暖季所需要的负荷,并且通过长达九个月对于再生水水温和水量的检测,可以看出该污水厂的水量满足系统的最大用水量。经污水处理厂处理后的再生水源是非常好的低品位热源,完全满足再生水源热泵系统的技术要求。初投资是一种产品是否能够得到应用发展的主要因素之一,通过再生水循环管线、机房内设备及安装、项目供暖空调主供回水循环水管线、其他费用的分析,我们可以初步的计算出采用污水源热泵的初投资为4830万元。与传统的水冷机组+燃煤锅炉锅炉系统相比较污水源热泵系统的初投资有所增加,与地源热泵系统相比较,污水源热泵系统的初投资在应用又有一定的优势。通过对实际工程中热泵机组和水泵的耗电量的计算,得出整个污水源热泵系统的年耗电费用。通过项目的经济性分析可知,所得税后财务内部收益率高于选定的行业基准收益率,财务净现值大于零,项目的财务分析指标也满足设定的基准收益率要求,该污水源热泵系统的项目不但可以盈利,还具有一定抗风险能力。污水源热泵系统作为一种新型的清洁热源,在系统的运行过程中仅需要消耗少量的电能,与自备锅炉房或者是区域锅炉房相比,污水源热泵不但减少非可再生能源的利用,同时还可以减少烟尘减和煤渣的排放,减少CO2、SO2、NOx等气体的排放。
[Abstract]:Sewage source heat pump system has been paid more and more attention at home and abroad for its energy saving and environmental protection, and a lot of research has been carried out on its application technology. The application of sewage source heat pump needs mature technical conditions. Although there have been some pilot projects in China, it is necessary to further verify whether the sewage source heat pump system can be popularized in the market. Based on the mature technology of regenerated water source heat pump in Shandong Province, this paper builds a practical project of sewage source heat pump central energy station, and verifies the application index of sewage source system through the actual measurement data of the pilot project. The water quality of a sewage treatment station around the project is measured for a long time, and it is concluded that the reclaimed water which can meet the discharge standard is of good quality. After anticorrosion, biological attachment prevention and filtration treatment, it can be applied to the regenerated water source heat pump system. Combined with the load of the refrigeration season and heating season of the project, and through the test of the reclaimed water temperature and water quantity for up to nine months, it can be seen that the water quantity of the wastewater treatment plant can meet the maximum water consumption of the system. The regenerated water source treated by the sewage treatment plant is a very good low grade heat source, which can meet the technical requirements of the regenerated water source heat pump system. The primary investment is one of the main factors of whether a product can be applied and developed, through the analysis of the reclaimed water circulation pipeline, the equipment and installation in the engine room, the project heating and air-conditioning main supply and backwater circulating water pipeline, and other expenses, We can calculate the initial investment of sewage source heat pump is 48.3 million yuan. Compared with the traditional coal-fired boiler system of water-cooled unit, the initial investment of sewage source heat pump system is increased. Compared with the ground source heat pump system, the initial investment of sewage source heat pump system has some advantages in application. By calculating the power consumption of heat pump unit and pump in practical engineering, the annual power consumption cost of the whole sewage source heat pump system is obtained. According to the economic analysis of the project, the financial internal rate of return after income tax is higher than the selected industry benchmark rate of return, the financial net present value is greater than zero, and the financial analysis index of the project also meets the requirements of the set benchmark rate of return. The project of the sewage source heat pump system can not only be profitable, but also has a certain risk resistance. As a new type of clean heat source, sewage source heat pump system only consumes a small amount of electric energy during the operation of the system. Compared with the self-provided boiler room or the regional boiler room, the sewage source heat pump not only reduces the use of non-renewable energy. At the same time, it can also reduce smoke and cinder emissions, and reduce the emissions of CO2,SO2,NOx and other gases.
【学位授予单位】：山东建筑大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU831

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