| 摘要 |
PURPOSE:To prevent heat from being released through a transmissive body and enable to efficiently heat a heat-transmitting medium flowing in a medium pipe provided at an inside wall of a heat-collecting element, by enveloping the heat- collecting element by the transmissive body having a flat spherical corss-sectional shape through a space. CONSTITUTION:In the heat-collecting element 1 provided with a projected part 2 at the outside periphery of a bottom surface of a bottomed cylindrical form, the heat-transmitting medium pipe 3 is wound several times on the inside wall, and end parts 5a, 5b of the pipe 3 for introducing and discharging a heat-transmitting medium are led out through an opening part 4. The element 1 is enveloped by the transmissive body 7 having a flat spherical cross-sectional shape with a fixed point of contact at the opening part 4 of the element 1, leaving a space therebetween. Accordingly, heat is prevented from being released through the body 7, and the medium flowing in the pipe 3 can be efficiently heated. In addition, by producing a small-type simple heat collector, a plurality of heat collectors can be easily used in connection as required, so that an economical and easily maintainable heat collector is provided. |
