Steam generating device

The invention relates to the technical field of high-temperature steam heating furnaces, and discloses a steam generating device which comprises a shell, at least two layers of cavities allowing fluid to circulate are arranged in the shell, the cavity located on the first layer is provided with an inlet, and the cavity located on the last layer is provided with an outlet. The inlet, each layer of cavity and the outlet are communicated in sequence; and the heating body is arranged in the shell and used for heating the fluid in each layer of cavity, due to the design of the multi-layer cavity, the flow path of the fluid is complex, the heat conversion rate is high, and the effects of inputting low-power-consumption and outputting high-quality steam are achieved. 本申请涉及高温蒸汽发热炉技术领域，本申请公开一种蒸汽发生装置，该蒸汽发生装置包括壳体，内置至少两层供流体流通的腔体，位于首层的所述腔体设有进口，位于末层的所述腔体设有出口，所述进口、各层所述腔体以及所述出口依次连通；以及，发热体，设于所述壳体，用于对各层所述腔体的流体进行加热，由于本申请的多层空腔的设计，使得流体的流路复杂，热转换率高，达到输入低功耗输出高品质蒸汽的效果。