Simple sampling device of vacuum reaction container

The utility model belongs to the technical field of sampling devices, and relates to a simple sampling device for a vacuum reaction container, which comprises a vacuum reaction container and a main material circulating pipe, and the main material circulating pipe is respectively communicated with the bottom and the top of the vacuum reaction container; the device further comprises a reflux pump, a sampling branch pipe and a sampling pipe; the reflux pump is arranged on the main material circulating pipe, the sampling branch pipe is positioned between the vacuum reaction container and the reflux pump, and two ends of the sampling branch pipe are respectively communicated with the main material circulating pipe; one end of the sampling pipe is communicated with the sampling branch pipe, and a sampling valve is arranged on the sampling pipe. The utility model provides a simple sampling device for a vacuum reaction container, which can complete sampling without the assistance of external force, and is less in equ