| 摘要 |
<p>A plastics tubular heat exchanging element 7 consisting of a tube or tubular element 10 comprising an inner wall 12 and an outer wall 13 interconnected by partitions 22, thereby forming longitudinal channels 11.</p><p>The channels 11 are connected with a fluid supply chamber 17, 17a and a fluid outlet chamber 18, 18a for feeding and removing a heating fluid.</p><p>Preferably a supply chamber 17, 17a and outlet chamber 18, 18a are formed by a tubular sleeve 14, 14a sealingly engaging a wall 12, 13 of the heat exchanging element by applying sealing rings 16.</p><p>The supply chamber 17, 17a and outlet chamber 18,18a may be located near the ends of the tubular heat exchanging element. The chambers 17, 18 may also be opposite each other whilst the other end of the tubular element is closed by a covering cap 26 forming a chamber 27 for passage of heat absorbing fluid from supply chamber 17 towards outlet chamber 18 being located at the same end.</p><p>A heat providing system comprises a first cycle 8 incorporating a transport pump 9 and a heat absorbing plastics element 7 being provided with channels 11 formed by partitions 22 between an outer wall 13 and inner wall 12 of said element and a second cycle 1 separated from said first cycle 8. A condensable gas flowing through cycle 1 is condensed incondensor 3 and subsequently transfers heat to a liquid to be heated in vessel 28, whereafter the condensable gas, such as Freon, flow through a throttle member 4 and subsequently through spiral 5a, through heat exchanger 5, wherein heat from the heat absorbing fluid flowing through the channels 11 is transferred to the condensable gas in the second cycle 1.</p> |
