| 摘要 |
<p>The present invention relates to a cooling-fluid (10) sub-cooler (1) used in a refrigeration cycle, this sub-cooler (1) operating in the refrigeration cycle by making use of nucleate boiling. The sub-cooler is constituted by a pressure vessel (2), at least one pair of support assemblies (3, 4), respectively positioned on at least one pair of fixing assemblies (5, 6) and arranged with spacing along the inner of the pressure vessel (2), each support assemblies (3, 4) being provided with a plurality of bores (12), and a plurality of capillary tubes (7), each of these capillary tubes (7) being associated to a bore of each of the support assemblies (3, 4), these capillary tubes (7) being twisted so as to exhibit spiral streae inside them, and the inner (8) and outer (9) surfaces of each capillary tube (7) being provided with a layer having porous surface. This sub-cooler (1) enables a quite effective sub-cooling of the cooling fluid (10) used in a refrigeration cycle by virtue of the flashing of the cooling fluid (10), which represents an improvement in the coefficient of performance (COP) and, as a result, a reduction in the consumption of electric energy of the compressor motors (105), which makes the system more efficient as a whole.</p> |
