Boiler mounting and fixing structure for ship

The utility model relates to the technical field of marine boiler mounting structures, in particular to a marine boiler mounting and fixing structure which comprises a grounding plate, an open groove is formed in the top surface of the grounding plate in a penetrating mode, a connecting block is clamped, embedded and slidably connected to an inner cavity of the open groove, and sliding blocks are fixedly connected to the front side surface and the rear side surface of the connecting block. First limiting grooves are formed in the front side surface and the rear side surface of the open groove in a penetrating mode, inner cavities of the first limiting grooves are rotationally connected with limiting screws in a threaded mode, a supporting arc rod is arranged above the grounding plate, and a boiler body is fixedly connected to the surface of one side of the supporting arc rod in a welded mode; the surface of the side, away from the boiler body, of the supporting arc rod is fixedly connected with a first attach