| 摘要 |
<p>The present invention concerns a procedure for removing gases from a distilling apparatus (10). In the procedure, the effluent water is caused to flow from the distilling apparatus (10) along an effluent line (19) to an effluent heat exchanger (13) for recovering the heat contained in the effluent. The feed water is arranged to flow along a first branch line (14a) through a distillate heat exchanger (12) and along a second branch line (14b) through the effluent heat exchanger (13) to the purpose of preheating the feed water. The mixture of distillate, vapour and gases is conducted from the distilling apparatus (10) along a flow line (16) to a degassing heat exchanger (11), where the heat contained in the mixture is recovered. The recovered heat is utilized in preheating the feed water by conducting the feed water after the distillate heat exchanger (12) and the effluent heat exchanger (13) along a header line (15) through the degassing heat exchanger (11), and further by a tubular connector (20) into the distilling apparatus (10). The gases are allowed to escape from the degassing heat exchanger (11) through a gas venting hole (17) into the environment. The mixture flow is condensed in the degassing heat exchanger (11) to distillate, and the distillate is conducted from the lower part of the degassing heat exchanger (11) along a distillate line (18) to the distillate heat exchanger (12).</p> |
