Desorption device and carbon dioxide production system

The invention discloses a desorption device and a carbon dioxide production system.The desorption device comprises a first desorption unit and a second desorption unit, and the first desorption unit comprises a first liquid supply pipe body used for providing rich absorption liquid for a first desorption area in a first desorption containing cavity; the second desorption unit comprises a second liquid supply pipe body used for providing rich absorption liquid for a second desorption area in a second desorption containing cavity, a first liquid flow outlet is further formed in the lower portion of the first desorption container, and the first liquid flow outlet is communicated with the second liquid supply pipe body through a first liquid supply channel; a first switch is arranged on the first liquid supply pipe body; a liquid supply channel at the fluid upstream of the first switch is communicated with the upper part of the second desorption cavity through a second liquid supply channel; and a second switch i