Efficient tubular water-cooling methanol synthesis reactor

The invention provides an efficient tubular water-cooling methanol synthesis reactor, a lower end socket is internally provided with an adiabatic reaction bed layer, the adiabatic reaction bed layer comprises an extended heat exchange tube, the extended heat exchange tube is communicated with a tubular bundle, the lower end of the extended heat exchange tube is provided with a tube plate, a catalyst filling layer and an inert ceramic ball layer are sequentially arranged below the tube plate, and the catalyst filling layer is communicated with the inert ceramic ball layer. A partition cavity is arranged between the catalyst filling layer and the lower sealing head, the tube plate is a floating tube plate, the floating tube plate is fixedly connected with the partition cavity, and the floating tube plate and the partition cavity are both abutted against the lower sealing head. The method has the beneficial effects that the overtemperature risk of an adiabatic reaction catalyst is avoided, meanwhile, the problem