Automatic liquid analyzing and sampling device capable of time-sharing component sampling

The invention discloses an automatic liquid analyzing and sampling device capable of achieving time-sharing component sampling. The device comprises a shell, wherein a crude oil inlet pipe is connected with the machine shell, a crude oil filtering device is arranged on one side of the shell on the crude oil inlet pipe, a crude oil filtering device comprises an outer shell, separation net structures are arranged in a connecting plate I and a connecting plate II, a hydraulic pump station is connected with a circulating pump, one side of the circulating pump is connected with a sampling sliding valve through a connecting pipeline, the sampling sliding valve comprises a valve body and a valve seat, a circulating pump outlet connected with the circulating pump is formed in one side of the valveseat, a sampling opening is formed in the other side of the valve seat, valve cores are arranged in the valve body and the valve seat, two sides of the valve body are symmetrically provided with connecting ports connected wi