Degreasing cleaning method for stainless steel storage tank

The invention discloses a stainless steel storage tank degreasing and cleaning method which comprises the following steps: after a hydrostatic test is performed on a stainless steel storage tank and before water is discharged, a plurality of buoyant rafts are put into the stainless steel storage tank, and a plurality of constructors enter the stainless steel storage tank from a maintenance ladder stand in the stainless steel storage tank and sit on the buoyant rafts in sequence; a constructor sits on a floating raft to conduct degreasing cleaning on the stainless steel storage tank through degreasing fluid, water of a certain height is placed after the stainless steel storage tank is cleaned every time, then degreasing cleaning is conducted, the process is repeated to conduct degreasing cleaning on the inner wall of the stainless steel storage tank section by section from top to bottom in sequence till the bottom of the stainless steel storage tank is reached, and dirt at the bottom of the tank is wiped manua