Cleaning method of reaction kettle

The invention discloses a cleaning method of a reaction kettle, and relates to the technical field of reaction kettles. The cleaning method comprises the following steps: (A) an adapter of a conversion connecting valve is connected with a high-pressure water pipe; (B) a stepper motor is started to drive a protecting pipe to rotate, so that two vertical grooves in the protecting pipe are respectively aligned to two spraying holes symmetrically and vertically arranged; (C) a switch of the high-pressure water pipe is started, so that washing liquid is sprayed out from the spraying holes to clean the internal of a cylinder; and (D) after the cleaning is finished, the stepper motor is started to drive the protecting pipe to rotate, so that the two vertical grooves in the protecting pipe are respectively staggered from the two spraying holes symmetrically and vertically arranged. Compared with the prior art, the cleaning method of the reaction kettle can automatically clean the internal of the cylinder. 本发明公开了种反应釜的