| 摘要 |
PURPOSE:To make it possible to maintain the highest efficiency in summer and winter by providing a pipe for water which makes contact with external air and a pipe for water put into vacuum, and properly using these pipes as occasion demands. CONSTITUTION:The pipe 1 in which water enters is fabricated on the outer side of the vacuum pipe 2, and another pipe 3 is fabricated on the inner side of the vacuum pipe 2. Thus, water is put into the outside pipe 1 in summer is brought into contact with the external air, and can absorb heat of external air and good efficiency can be obtained. In winter, water is put into the inside pipe 3 and is interrupted from the external air, and hence the heat is not arrested by the external air, thus good efficiency being obtained. As the changeover of the pipes, a valve automatically passing water by the temperature difference of the external air may be changed over. Further, the pipe for solely water and a water pipe placed in the vacuum pipe are separately placed, and these pipes may be changed over by valves. |
