| 摘要 |
A portable solar heat tube comprising an outer flexible tubular member having high solar transmittance capabilities and a flexible insulating tubular member positioned within the outer tubular member. A flexible absorber tubular member is positioned within the insulation tubular member for converting the incoming sunlight into heat and transferring the heat to the air passing therethrough. One end of the absorber tubular member is connected to a source of air under pressure with the other end thereof being connected to the installation requiring heat. A modified form of the solar heat tube includes a flexible header positioned within the absorber tubular member. The flexible header has a diameter somewhat smaller than the absorber tubular member so that a space will be provided therebetween. The header tubular member is provided with perforations formed in its exterior surface so that air entering the header will be discharged outwardly through the perforations therein to provide improved absorber-air contact. Apparatus is provided for maintaining the solar heat tube in position when inflated. The solar heat tube may be rolled up when deflated for storage or for movement from one location to another.
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