The utility model relates to the technical field of
acrylic acid production, solves the technical problem of low
acrylic acid production efficiency, and particularly relates to an acid
polymerization inhibitor adding device in an
acrylic acid production process, which comprises a reaction tank for generating acrylic acid through reaction, and a
polymerization inhibitor atomizing mechanism for adding a
polymerization inhibitor into the reaction tank is arranged at the top end of the reaction tank. A reaction accelerating mechanism for accelerating mixing of the polymerization inhibitor is arranged on the reaction tank, the polymerization inhibitor atomizing mechanism comprises a spraying seat fixed at the top end of the reaction tank through a bracket, one end of the spraying seat is movably connected with a rear cover, and the top end of the spraying seat is fixedly connected with a
gas phase pipe. According to the utility model, due to the arrangement of the polymerization inhibitor atomizing mechanism,
waste gas generated when acrylic acid is generated in the reaction tank can be utilized to pressurize the interior of the spray seat, so that a polymerization inhibitor entering the interior of the spray seat and flowing in through the polymerization inhibitor
storage tank is sprayed out through the spray head, and the sprayed atomized polymerization inhibitor can react with raw materials in the reaction tank more quickly.