Steam control system of proofing chamber

The utility model particularly discloses a steam control system of a proofing chamber. The steam control system comprises a control box, a main pipeline is arranged in the control box; the head end of the main pipeline is connected with an external steam system box, and a condensate water recovery pipeline is arranged at the tail end of the main pipeline; the middle part of the main pipeline is communicated with a branch pipeline; and the branch pipelines are respectively provided with a temperature control pipeline and a humidity control pipeline. The external steam system box is used for conveying steam to the main pipeline, after the steam enters the main pipeline, part of the steam is cooled and liquefied, the liquefied moisture is led out through the condensate water recovery pipeline, and the temperature, the humidity and the pressure in the fermentation chamber are detected according to the detection sensor arranged in the fermentation chamber; the temperature, humidity and pressure in the fermentation