Water cooling wall structure of supercritical boiler

The utility model discloses a supercritical boiler water-cooled wall structure, which comprises a dry bottom hopper water-cooled wall, a spiral water-cooled wall, a transition section water-cooled wall and a vertical water-cooled wall, and adopts a vertical tube panel, spiral tube panel, middle transition and vertical tube panel structural form by changing the conventional lower full-spiral tube panel, middle mixing and vertical tube panel structural form. In the utility model, the straight tube panel of the dry bottom hopper is directly converted into the spiral tube panel above the inflection point of the dry bottom hopper, middle transition of a header is not needed, and the structure is simple; the middle spiral pipe coil realizes spiral to upper vertical pipe coil conversion through a transition section middle mixing structure, through a new water cooling wall structural form, the design of a lower dry bottom hopper water cooling wall is simplified, the problems that the lower spiral dry bottom hopper wa