Water chromium content detection device

The utility model relates to water quality analysis equipment. The utility model particularly relates to a water chromium content detection device. The device comprises an installation frame and a cylindrical box body installed on one side of the installation frame, universal wheels are arranged at the bottom of the installation frame, the four universal wheels are evenly arranged on the bottom face of the installation frame, a water inlet pipe and a water outlet pipe are arranged on the side wall of the box body, and peristaltic pumps are arranged on the water inlet pipe and the water outletpipe respectively; a sliding rail is arranged on the side wall of the box body in the circumferential direction. A bracket is arranged on the sliding rail; a closed detection box is arranged at the end, away from the box body, of the support, a sample tube and a reference tube are arranged in the detection box in parallel, light holes are formed in the positions, corresponding to the sample tube and the reference tube, of