摘要能源与环境是当今世界面临的重要课题，寻求高效节能的能源也是制冷行业的研究方向。地源热泵作为一种可再生能源利用技术，地源热泵利用的是地下浅层的地能，实现供暖或制冷的系统。地源热泵技术利用可再生的地能，有效减少环境污染，节约能源，应该受到推广应用。地源热泵的推广有利于改善中国南方供暖问题，同时对解决世界能源危机有一定帮助。因此地源热泵的设计就显得尤为重要。在机组系统设计过程中，需要符合国家节能减排标准，可持续发展等原则。合理设计工况条件，制冷设备选型优化都有利于提高机组系统运行效率。本文首先对地源热泵机组系统特点原理进行介绍分析，其次对地源热泵进行方案论证，再者进行系统各部件计算选型，最后校核制热性能指标是否达到设计要求。84887

毕业论文关键词：地源热泵；R410A；选型计算

Abstract Energy and environment is an important issue facing the world today。 It is also the research direction of the refrigeration industry to find the energy and energy efficient。 Ground source heat pump as a renewable energy utilization technology, ground source heat pump is the use of shallow underground energy to achieve heating or cooling system。 Ground source heat pump technology can effectively reduce environmental pollution and save energy by using renewable energy, which should be popularized and applied。 The promotion of ground source heat pump is helpful to improve the heating problem in South China, and it is helpful to solve the energy crisis of the world。 Therefore, the design of ground source heat pump is particularly important。 In the design process of the unit system, need to meet the national energy conservation and emission reduction standards, the principle of sustainable development。 Reasonable design conditions, the selection and optimization of refrigeration equipment is beneficial to improve the operating efficiency of the unit system。 Firstly, the ground source heat pump system principle and characteristics are introduced and analyzed, followed by the scheme demonstration of ground source heat pump。 In addition to each part of the system type selection calculation, finally checking system thermal performance index meets the design requirements。

Key words: ground source heat pump；R410A ；selection calculation

目录

第一章  绪论 1

1。1 地源热泵定义 1

1。2 地源热泵发展历史 1

1。2 地源热泵的分类 2

1。2。1 大地耦合式热泵系统 3

1。2。2 地下水热泵系统 3

1。2。3 地表水热泵系统 3

1。3 地源热泵特点 4

1。4 未来前景分析 5

第二章  机组设计方案论证 7

2。1 热泵机组工作原理 7

2。2 设计选型论证 8

2。2。1 制冷剂 8

2。2。2 压缩机类型 9

2。2。3 换热器 10

2。2。4 四通换向阀 12

2。2。5 节流装置 14

第三章  制冷系统计算选型 15

3。1 压缩机计算选型 15

3。1。1 制冷工况下计算