Continuous sample feeding chromatography device

The invention discloses a continuous sample feeding chromatography device. The continuous sample feeding chromatography device has the following advantages that n chromatographic columns can be connected in series at the same time; each chromatographic column is filled with fed samples, the carrying capacity of a single column is utilized to the maximum degree, redundant samples can be fed into the following chromatographic columns connected in series, filler consumables are saved, and the cost of additionally purchasing a large-scale chromatography system is omitted; 3, on the premise of not influencing continuous sample feeding of other chromatographic columns, independent elution can be carried out, and the sample feeding efficiency in unit time is improved; 4, after one fully-loaded chromatographic column is eluted, flushed and balanced, the chromatographic column can enter a sample feeding system again according to needs, the samples continue to be captured, the effect of utilizing the limited chromatographic columns to achieve the infinite carrying capacity is achieved, the occupied space is small, cost is low, time and space cost is reduced, and production efficiency is greatly improved. Compared with an existing chromatography device, the work efficiency of the continuous sample feeding chromatography device is improved by 2-5 times, and the cost is reduced by 50%-80%.