利用污水源热泵加热室内游泳池水的研究

发布时间：2018-01-31 21:12

本文关键词： 污水源热泵室内游泳池换热器面积污水特性　出处：《哈尔滨工业大学》2014年硕士论文　论文类型：学位论文

【摘要】：城市污水中蕴含了较多的低位热能，充分利用这部分热能不仅能达到节能的目的，而且可以减少污水废热排放对城市“热岛效应”的影响。近年来，随着人们对污水源热泵的研究不断深入，其应用的范围也逐渐广泛。酒店生活污水的水质情况相对良好，具有较强的可回收性。本文主要针对哈尔滨某高档酒店的污水排放情况，为其设计污水源热泵系统加热酒店内游泳池水，并研究其运行性能。为了验证系统的可行性，计算出游泳池负荷，并推算出酒店内污水排放的平均流量。计算污水温度在最不利的情况下，，污水中能提取的热量是否能够满足游泳池所需热量。确定热泵的运行参数，分别对污水侧换热器和游泳池侧换热器进行设计，确定壳管式换热器的结构参数，并确定壳体内管束的布局；根据热泵运行的工况，选择合适的压缩机和电子膨胀阀。对热泵的四大部件分别建立数学模型，并利用MATLAB软件编写模拟仿真程序。对热泵的设计工况进行仿真模拟研究，观察其运行工况能否满足系统设计要求。依据系统运行的仿真模拟，在设计工况的基础上，分别分析污水侧换热器面积、游泳池侧换热器面积以及污水的热阻、温度、流量等因素在合理范围变化时，系统性能主要参数的变化规律。这些规律可以为实际工程提供参考。
[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.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU83

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