| 摘要 |
<p>PURPOSE:To improve heat collecting efficiency of a heat-pipe type vacuum tube system solar heat collector, by connecting a metal end plug, which is mounted on the end part of a vacuum glass tube, and a heat exchanger as a unitary body, and providing said heat exchanger in the vacuum glass tube. CONSTITUTION:An end plug 8 made of metal, which is mounted on the end of a vacuum glass tube 1, and a heat exchanger 4' are connected as a unitary body, and the heat exchanger 4' is sealed in the vacuum glass tube. Therefore the quantity of heat, which is conducted to atmosphere through the glass tube from the heat exchanger is minute. Since members, which are contacted with the atmosphere and radiate heat, are only the end plug 8 and a connecting pipe 7, both members are covered by a heat insulating material, and shielded. Then, even though the pipe 7 and a heat insulating cover 5 are made compact and heat collecting efficiency is improved, the amount of heat radiation can be suppressed to a lower value.</p> |
