Vacuum, heating and filtering trinity tank device for cleaning storage tank

The invention relates to the technical field of petroleum drilling tools, in particular to a vacuum, heating and filtering trinity tank device for cleaning a storage tank. The device comprises a tank body, a steam water separation tank and a water ring vacuum pump, wherein the steam water separation tank provides working liquid for the water ring vacuum pump, the interior of the tank body is vacuumized through an outlet pipeline of the water ring vacuum pump, and therefore negative pressure is formed inside the tank body; crude oil in an oil storage tank connected with the tank body is pumped and sucked into the tank body, a heating coil is arranged in the tank body, the heating coil heats crude oil in the tank body, a filter net is further arranged in the tank body, and the heated crude oil is filtered; and the tank body is connected with a centrifugal pump, and the centrifugal pump pumps and sucks the heated and filtered liquid in the tank body and transfers the liquid to the designated place. According to