In this article, for the 6-man 500 m saturation diving chamber, the calculation thinking of circulating air volume, and refrigerating and heating production were introduced; the design and selection requirements of refrigeration unit, circulating fan, magnetic coupling transmission device, and heat exchanger module were also introduced; and the research findings of refrigerating and heating control technology of this system were put forward. The article can provide a reference for developing environmental control system for living chambers of deep saturation diving.

In this article, for the 6-man 500 m saturation diving chamber, the calculation thinking of circulating air volume, and refrigerating and heating production were introduced; the design and selection requirements of refrigeration unit, circulating fan, magnetic coupling transmission device, and heat exchanger module were also introduced; and the research findings of refrigerating and heating control technology of this system were put forward. The article can provide a reference for developing environmental control system for living chambers of deep saturation diving.