NOVELTY - An outlet of oxygen storing tank (11) is connected to oxygen stream inlet (3) of coal gasifier (4) via oxygen compressor (13). A carbon inlet (1) and water inlet (2) of coal gasifier are connected to carbon stream and water stream, respectively, via delivery pipes. The output end of coal gasifier is connected via compressor (5) and heat exchanger (6) to rectifying device (7) connected to reactor (17) of pulpifying bed. The outlet of hydrogen storing tank (12) is connected to reactor of pulpifying bed via hydrogen compressor (14), heat exchanger (15) and flow regulating valve (16).    USE - Oil production device for producing oil through liquefaction with large-scale non-network-joining wind power.    ADVANTAGE - Uses large-scale non-network-joining wind power, thus greatly improving production efficiency, reducing coal consumption, and reducing discharge of carbon dioxide.    DETAILED DESCRIPTION - The rectifying device (9) rectifies alternating current outputted by a wind generating set (8) and supplies the rectified alternating current through a transmission line to an electrolytic water tank (10). The electrolytic water tank electrolyzes water and supplies oxygen and hydrogen to the oxygen storing tank and hydrogen storing tank through gas pipes. The electrolytic water tank is a DQ375/1.6 type device for preparing hydrogen by electrolyzing pressurized water or a DQ375/1.6 type device for preparing hydrogen by electrolyzing water. The wind generating set is for large-scale non-network-joining wind power with high power equal to or more than 1.5 megawatts.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the oil production device.    Carbon inlet (1)    Water inlet (2)    Oxygen stream inlet (3)    Coal gasifier (4)    Compressor (5)    Heat exchanger (6)    Rectifying devices (7,9)    Wind generating set (8)    Electrolytic water tank (10)    Oxygen storing tank (11)    Hydrogen storing tank (12)    Oxygen compressor (13)    Hydrogen compressor (14)    Heat exchanger (15)    Flow regulating valve (16)    Reactor (17)