Chemical tank truck loading system

The utility model discloses a loading system of a chemical tank truck, and belongs to the technical field of benzene hydrogenation equipment. The device comprises a butt-joint assembly, the butt-joint assembly comprises a butt-joint pipe, a butt-joint cover and a sealing unit, the butt-joint pipe is inserted into the butt-joint cover and fixedly connected with the butt-joint cover, the butt-joint cover abuts against the tank car, and a sealed space is formed between the butt-joint cover and the butt-joint pipe; the sealing unit comprises a plurality of hollow sealing rings embedded in the butt joint pipe and a manual driving part connected with the butt joint cover, and the manual driving part communicates with the hollow sealing rings through pipelines so that liquid can be input into or output from the hollow sealing rings. The sealing performance between the butt joint pipe and the tank car connector can be enhanced. 本实用新型公开了一种化工槽罐车装料系统，属于苯加氢设备领域技术领域；其包括对接组件，所述对接组件包括对接管、对接罩以及密封单元，所述对接管插装于所述对接罩中且与所述对接罩固接，所述