| 摘要 |
<p>The heat exchanger (10) includes two rectilinear, coaxial tubes (11, 12) integral with one another and a peripheral tubular chamber (13) between the inner (11) and outer (12) tubes. Formed within the chamber (13) are a number of ducts including a delivery duct (15) running from the top to the bottom of the chamber (13) and a return duct (16) running from the bottom to the top of the chamber (13) for circulating a heat transfer fluid in a geothermal plant.</p> |
