Dismounting system for dismounting hydrocarbon source rock thermal evolution reaction device and dismounting method

The invention provides a dismounting system for dismounting a hydrocarbon source rock thermal evolution reaction device and a dismounting method. The reaction device comprises a rock core reaction barrel for containing a rock core and an outer barrel arranged on the outer side of the rock core reaction barrel in a sleeving mode. The dismounting system comprises a hollow shell, a cover body, a first fixing column, a second fixing column and an upper pushing column; the hollow shell is used for containing the reaction device and provided with a first opening end and a second opening end which are opposite to each other, the cover body is matched with the first opening end, the first fixing column is arranged on the cover body and used for pushing against the rock core, the second fixing column is arranged close to the second opening end and used for pushing against the rock core, the second fixing column is provided with an external thread, the second fixing column is sleeved with the upper pushing column, the