1、 I 摘摘 要要 水源热泵是用水作为热泵的低位热源的热泵装置， 源源不断的将水中的低位 热能向高温热源传递，与其他形式的热泵相比具有很多优点。本次设计是根据初 始参数设计一台水源热泵系统。 本文首先介绍了热泵系统的原理、特点、应用以及研究发展方向。其次，详 尽介绍了水源热泵系统的对比与研究，再次，说明了设计过程，包括换热器的热 力计算、结构设计、阻力校核，并按照设计题目完成计算说明书。 在整个水源热泵设计过程中，热力计算是首要因素，它主要包括温差、传 热系数和换热面积等的计算，这部分内容适合各种类的热泵系统。结构设计主要 是设计热泵系统的蒸发器和冷凝器， 本系统蒸发器采用板式， 冷凝器采用管壳
2、式， 要确定板片数目以及换热管数量以及其他相关尺寸等。 关键词关键词： 水源 热泵 水源热泵 II Design of 50kW water source heat pump system ABSTRACT The heat source of the Water source heat pump is the low heat of the water. This heat pump transfers heat source from the water to high-temperature objects in a steady stream, compared with other
3、forms of heat pump it has many advantages. This paper is based on the initial parameters to design a water source heat pump system. Firstly，The paper introduces the principle of heat pump system, characteristics, application and research development. Secondly, it describes the differences of other h
4、eat pumps in detail. Thirdly, the paper notes the design process, including the heat exchanger calculations, structural design, the resistance calculations. Finally, it completes the calculation in accordance with a design manual. In the design process, thermal calculation is the primary factor. The
5、 thermal calculation includes temperature, heat transfer coefficient and heat transfer area, and other calculations, which are the same parts of other heat pump systems. Structural design is to determine the size of heat pump system evaporator and the condenser. Plate heat exchanger is used as the s
6、ystem evaporator and shell and tube heat exchanger is used as the condenser. Structural design is to calculate the plate number , the number of tubes and other relevant dimensions. key Words： Water source；heat pump；Water source heat pump III 目 录 摘要 . I ABSTRACT II 第一章 绪论 1 1.1 热泵简介 1 1.1.1 背景介绍 . 1 1.2 水源热泵. 3 1.2.1 水源热泵的发展 . 3 1.2.2 水源热泵机组组成及原理 . 3 1.2.3 水源热泵的特点 . 4 1.3 总结. 5 第二章 水源热泵系统的设计步骤. 7 2.1 总的热力计算. 7 2.2 压缩机的选择. 7 2.3 蒸发器的热力计算和结构计算. 7 2.4 冷凝器器的热力计算和结构计算. 8 2.5 节流阀的选择. 8 第三章 50Kw 水源热
