INNER STRUCTURE OF CANISTER, THE CANISTER, AND CANISTER CONNECTED BODY

摘要

PROBLEM TO BE SOLVED: To provide an inner structure of a canister, the canister, and a canister connected body, which prevent reduction of absorption performance due to water vapor condensation caused by absorption reaction, with a simple structure, enable a removal effect of water vapor contained in a circulating gas to be expected simultaneously, and also enable plural canisters to be connected in a cylindrical axis direction.SOLUTION: An inner structure 40 of a canister 20 includes: a transparent inner cylinder 41 which is arranged on an inner side of a cylindrical and transparent outer cylinder 30 and forms a double pipe together with the outer cylinder 30; an inflow opening part 45 arranged on a lower end of the inner cylinder 41; a carbon dioxide absorbent 43 accommodated in an inner space 42 of the inner cylinder 41 and absorbing carbon dioxide contained in a circulating gas; an outflow opening part 46 arranged on an upper end of the inner cylinder 41 and causing the circulating gas having passed the carbon dioxide absorbent 43 to outflow to an upper side; and a communication part 47 arranged on the upper end of the inner cylinder 41 and communicating an annular gap part 48 between the outer cylinder 30 and inner cylinder 41 with the inner space 42.