Heat exchanging, two-segment cnoversion-double-tower for synthetizing

The utility model discloses a heat exchange type two-section conversion double-tower carbinol producing device, which comprises a heater, a first furnace, a secondary furnace, a compressor, and synthesizing towers. The technical characteristic of the utility model is that a heat exchange type converting furnace which is connected with the first furnace in parallel is arranged between the heater and the secondary furnace; a gas inlet and a gas outlet between heat exchange pipes of the heat exchange type converting furnace are respectively connected with a gas outlet of the secondary furnace and an inlet of the compressor; moreover, the synthesizing section of the utility model is connected with the synthesizing tower in series. The amplitude of the increase of the output of the utility model is large; the device of which the annual output is 100 thousand tons is modified into the device of which the annual output is 300 thousand tons; the energy consumption is little, and the energy consumption can be reduced to the level of a big factory of which the annual output is 300 thousand tons; the investment can be saved, the investment can be saved by 40 percents if the device of which the annual output is 300 thousand tons is newly produced.