| 摘要 |
<p>Heat is recovered from gas at elevated temp. and condensable contaminations are simultaneously removed using a heat exchange appts. These are transferred from the the gas to a heat-collecting fluid passing through tubes(29, 30) that are arranged crosswise to the direction of flow of the gas through the appts. A cleaning device is placed reciprocally longitudinal to the tubes(31, 32) to remove contaminations deposited on the tube surface. The appts. does not have to be dismounted for cleaning.</p> |
