双向差压流动静态截止水阀的结构设计与理论重点.doc

安徽建筑大学毕业设计(论文) 1 安徽建筑大学毕业设计(论文) 专业: 班级: 学生姓名:学号: 课题: 双向差压流动静态截止水阀的结构设计与理论分析指导教师: 201 3年6月3日安徽建筑大学毕业设计(论文) 2 摘要自 20 世纪 90 年代以来, 我国太阳能热水器行业保持了 20 年左右的快速增长。现在越来越多的家庭开始使用太阳能热水器,因此太阳能热水器成为人们生活中重要的组成部分。我们往往需要安装 10 米左右的水管才能使用太阳能热水器中的热水。当我们停止使用热水器时,水管里的水会向外放热,从而减少能源的有效利用。因此我们需要对管道进行保温,但保温过程既繁琐有需要许多材料。现在我们设计一水阀安装于水箱下方。当注水时,此水阀打开水向上流;当放水时,此水阀也能打开水向下流;当太阳能热水器不用时,此水阀关闭。这样就可以使水管中的水与水箱中的水隔开,以防止热量的散失。从而实现能源的充分利用。当人们使用热水器时,只需将管道里的冷水放完就用到太阳能热水器中的热水了。关键词: 太阳能;水阀;热量散失安徽建筑大学毕业设计(论文) 3 Abstract Since the 1990 s, China's solar water heater industry 20 years of rapid growth. Now more and more families start to use the solar water heater, so solar energy water heater is an important part of people life. We often need to install 10 meters of the pipe to use hot water of solar energy water heater. When we stop using the water heater, water pipes to the outside of the water in the heat, reducing the effective utilization of energy. So we need to heat preservation pipe, insulating process cumbersome in need of many materials. Now we design monohydrate valve installed in the bottom water tank. When water injection, the water valve to open the water to the upper; When the water, the water valve will open water flows downward; When the solar energy water heater without the water valve closed. So you can make the water in the pipe and the water in the tank, to prevent heat loss. So as to realize make full use of energy. When people use the water heater, just put the pipe in cold water after use the hot water in solar water heater. Key words : Solar energy; Water valve; Heat loss 安徽建筑大学毕业设计(论文) 4 目录摘要......................................................................................................................................... 2 Abstract ................................................................................................................................ 3 第一章绪论.......................................................................................................................