| 摘要 |
<p>Pipe thermal-insulating duct having hollow brass block (1) cylindrical shape in which middle part is the offset ring (2) of bigger average and which is finished with thread aside. On the hollow brass block (1) are mounted the ring thermal-insulating plastic blocks (3, 4) with elastic dilation-compensating sealing, having sealing rings (8), which by housing pipe thermal-insulating duct into a wall of case of plane vacuum (low-pressure) collector are locking this wall thermally dielectrically and vacuum totally, whereby they are fixated trough the screw (7) with the washer (6). Pipe thermal-insulating duct is in one end of hollow brass block (1) on the circuit brazing to the pipeline (13) flowing into vacuum box of collector.</p> |
