共查询到18条相似文献,搜索用时 250 毫秒
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分析探讨了城市原生污水源的特点及其热泵系统的优缺点.以哈尔滨地区的工程实际为例,对城市原生污水源热泵、天然气直燃热泵机组、燃煤锅炉加电力冷水机组进行了经济性、环保性比较.结果表明,城市原生污水源热泵系统优于另两个系统. 相似文献
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介绍了一个原生污水源热泵系统,该系统由阻垢机、污水换热器、热泵和其他泵、风机等辅助设备组成,于2008年建成并投产运行。在供热和制冷工况下,测试了从污水源端到末端热泵的性能(包括污水的温度和流量,主要设备的进、出口性能参数、不同设备在典型操作工况下的性能)。以实际测试数据为基础,研究了系统在供热和制冷模式下的综合性能,提出了改进系统性能的方法,并给出了改进后系统的典型性能曲线。研究结果表明,系统的供热COP可达4.3,制冷COP可达3.5。更为详细的分析结果可为城市原生污水源热泵系统的应用提供重要参考。 相似文献
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<正>北京瑞宝利热能科技有限公司(以下简称瑞宝利公司)是国家高新技术产业化重点扶持的高新技术企业。专业从事原生污水源(城市污水、江、河、湖、海水等)热泵、水源热泵、土壤源热泵供暖空调系统的设计、施工以及原生污水源热泵系统专利设备的研发、制造。 相似文献
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基于遗传算法的原生污水源热泵优化设计 总被引:3,自引:1,他引:3
根据现有城市原生污水源热泵的技术经济特点,以系统的费用年值为目标函数,建立了系统综合优化的数学模型.在满足系统供冷、供热的可靠运行条件下,利用遗传算法,对系统的运行参数及机组部件进行了优化选择,实现了系统费用年值最小的目标. 相似文献
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根据现有城市原生污水源热泵的投资和运行等经济和技术特点,以系统的费用年值为目标函数,系统的冬夏季蒸发温度、冷凝温度、污水换热器出水温度、污水取水系统的管径等为优化变量,建立了系统综合优化的数学模型.在满足系统供冷、供热的可靠运行的条件下,利用遗传算法理论,并使用Matlab7.1遗传算法工具箱对系统的运行参数及机组部件的设计参数进行了优化选择,实现了系统费用年值最小的目标.优化结果与传统设计结果相比费用年值节省约6%. 相似文献
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以山西国瑞苑原生污水水源热泵项目为例,叙述了热泵技术及基本原理、原生污水源热泵技术的开发与应用。得出该项目节能效益显著、消除污染、节水省地、一机多用、运行稳定可靠的结论。 相似文献
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污水源热泵技术及其应用 总被引:2,自引:0,他引:2
介绍了污水源热泵的特点。通过对空气源热泵、地源热泵和污水源热泵等不同采暖系统的经济性和环保效果分析显示,污水源热泵系统的初投资为地源热泵的70%左右。综合考虑初投资和运行费用等因素,污水源热泵系统的经济效果和环保效果最为显著。 相似文献
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《Applied Thermal Engineering》2014,62(2):747-757
Untreated urban sewage contains large amounts of thermal energy; and its temperature is suitable as a heat source in heat pumps for the heating and cooling of buildings. However, it is not widely used in heat pump systems due to the problem of filth. This paper presents an untreated sewage source heat pump (USSHP) system in which auto-avoiding-clogging equipment is used to continuously capture suspended solids in the sewage. Thus, the block problems caused by filtration and fouling in the heat exchanger tubes can be efficiently resolved in this system. In an actual engineering application, the characteristic parameters of USSHP system are tested under typical operating conditions for heating status. Based on the test results, the performances of the USSHP system are examined. The results indicate that the thermal resistance of the convective heat transfer and fouling on the sewage side in the sewage exchanger is 80% of its total thermal resistance. The COP of the heat pump unit and the COP of the USSHP system are 4.3 and 3.6, respectively. 相似文献
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The performance of sewage heat exchangers plays an important role in the sewage source heat pump systems when the sewage does not enter the heat pump unit directly, especially when untreated sewage is used as heat or cold source. In this article, a free-flow channel heat exchanger is proposed to be used in an untreated sewage source heat pump system. First the article designs the sizes of heat exchanger according to the real system requirements, and then it models and analyzes dynamic characteristics on the simulink platform. The transfer functions that are suitable for the heat exchanger are deduced. The analysis shows that the wall temperature is 9.1°C when the untreated sewage and water temperatures at the inlet are 15 and 7°C, respectively. The result is obtained when considering the temperature at the outlet is affected by the temperature at the inlet. The variable quantity of water temperature at the outlet is affected greatly by the variable quantity of water temperature at the inlet and the variable quantity of sewage temperature at the outlet by the variable quantity of sewage temperature at the inlet. Besides, the measured values of water temperatures at the inlet and outlet are also observed from the real system where the free-flow channel heat exchanger is adopted. The variable quantities of water temperature at the outlet are calculated according to the measured values, and are compared with the model results deduced by the transfer functions. The comparative result shows that the differences between the measured and model results of water temperature variable quantities at the outlet range from ?1 to 1°C, thus getting the water temperatures at the outlet according to the model results. The differences of the water temperature at the outlet between the measured values and the deduced results are from ?0.5 to 0.5°C. It illustrates the temperature at the outlet can be estimated by modeling the temperature variable quantity at the outlet. 相似文献
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