文档介绍：本科毕业设计计算说明书
题目风冷热泵性能设计计算
系别机械工程系
专业热能与动力工程
班级能动901 学号
摘要
风冷热泵型热水机组发展迅速,1996年比1995年增长近二倍。我国的能源政策和环境保护政策是促进热泵技术迅速发展的主要因素热泵空调系统在中国的应用迅速增长,目前家用空调器总量60%为热泵型甚至在较为寒冷的北京地区,有许多用户也喜欢在集中采暖期前后应用热泵型空调机组来采暖,冬季供应热水,夏季供应冷水的电动风冷机组在集中式空调系统中得到了广泛的应用,今后的应用将更为普及。本设计为风冷热泵设计,结合所学知识以及工程实际设计资料(经济效益、环境效益),要求优化管路流程,充分发挥换热能力。
该设计详细介绍了系统方案的确定和该系统循环热力计算、压缩机的选型计算、冷凝器的选型校核、蒸发器的选型校核、节流机构的选型、经济性分析。
关键词:热泵;风冷;循环
ABSTRACT
Air-cooled heat pump hot water unit developed rapidly in 1996 than in 1995, an
increase of nearly tripled. China's energy policy and environmental policy is to
promote the rapid development of heat pump technology is a major factor in heat
pump air conditioning system in China is rapidly growing, currently 60% of total
household air-conditioner heat pump even in the colder regions of Beijing, there are
many users Like the centralized heating period before and after the application of heat
pump type air conditioning units for heating, hot water in winter, summer, supply of
cold water in an electric air-cooled central air conditioning system has been widely
used, future applications will be more popular. air conditioning system has been
widely used, future applications will be more popular. The design for the air-cooled
heat pump design, combined with the knowledge and practical engineering design
information (economic and environmental benefits), requires optimization of process .
The design details of the system and the system determines the program cycle
thermodynamic calculation, sizing pressor, condenser selection checking,
evaporator selection, throttle bodies selection, economic analysis.
KEY WORDS: heat pump; air; circulation
目录
摘要 I
ABSTRACT II
目录 III
1绪论 1
设计目的 1
设计要求: 1
设计具体要求 1
2设计任务、依据及方案 3
流程设计及热力计算 3
流程图设计 3
循环热力计算设计参数 3
4
7
10
16
26
27
28
29
3辅助设备选型和经济