| 摘要 |
A desalination system (1) for producing a distillate from a feed liquid comprises: a steam raising device (2) having a liquid section (5) and a steam section (6) which are separated by a membrane system (7); a membrane distillation device (3) having a first steam section (11) and a liquid section (12) which are separated by a wall (14) and having a second steam secÂtion (13) which is separated from the liquid section (12) by a membrane system (15); and a heat exchange device (4) having a first liquid section (21) and a second liquid section (22) , which are separated by a wall (23). The steam raising device (2), the membrane distillation device (3) and the heat exchange deÂvice (4) are implemented such that raw liquid fed into the second liquid section (22) of the heat exchanger-boiler device (4) is heated by brine liquid from the liquid section (6) of the steam raising device (2), such that permeate from the steam section (6) of the steam raising device (2) is condensed in the first steam section (11) of the membrane distillation device (3), thereby heating heated feed liquid from the heat exchange device (4). A method for operating a desalination system is also disclosed. Advantageously the desalination system operates at a reduced total thermal energy consumption. |
