Continuous reaction device for synthesizing naphthalene dicarboxylic acid and intermediate thereof

The invention relates to the technical field of chemical reaction synthesis equipment, in particular to a continuous reaction device for synthesizing naphthalenedicarboxylic acid and an intermediate thereof, which can continuously react to generate naphthalenedicarboxylic acid and intermediates thereof, and is stable and controllable in synthesis reaction process, low in process cost and convenient to use and maintain. The device comprises a main reaction kettle, a pre-reactor, a feeding pipeline and a discharging pipeline, a high-temperature-resistant feeding valve and a high-temperature-resistant discharging valve are arranged on the feeding pipeline and the discharging pipeline respectively, a feeding flow meter and a discharging flow meter are arranged on the feeding pipeline and the discharging pipeline respectively, a feeding pump is arranged on the feeding pipeline. A discharging cooler and a discharging control valve are arranged on the discharging pipeline, weighing modules are arranged on the two si