Tank layering on-line density measurement and tank sampler integrated device

The utility model belongs to the field of oil field chemical industry, and particularly relates to a tank layering online density measurement and tank sampler integrated device. The utility model solves the problems that the recovery pump in the density detection device for oil in the oil tank in the prior art has higher specifications such as lift and flow required by the booster pump, the overall volume is larger, the overall pipeline is longer, and more hidden danger points exist. The device comprises a sampling unit, a density detection unit, a circulating mixing unit, a control unit and a box body, the sampling unit, the density detection unit, the cyclic mixing unit and the control unit are all fixed in the box body, and the control unit is electrically connected with the cyclic mixing unit and the density detection unit. The device is compact in product structure, integrates the functions of sampling and on-line layered density measurement, not only reduces a recovery tank, but also is provided with ma