Reactor for methyl arene liquid phase oxidation reaction

In order to overcome the problems that mechanical stirring reaction kettles are short in service life and high in production precision, the utility model provides a reactor for methyl arene liquid phase oxidation reaction. The reactor comprises a multi-section tower body, wherein a spiral pipe with gas holes is arranged at the bottom inside the tower body; a pipe support for placing the spiral pipe is welded on the inner wall of the tower body close to the tower bottom; each section of tower body is provided with multiple hot water taking circulation passages connected in parallel; the hot water taking circulation passage comprises a half ring pipe hot taking pipe arranged inside the tower body, a water inlet vertical half pipe and a water outlet vertical half pipe welded outside the tower body; the left end of the half ring pipe hot taking pipe is connected with the upper end of the water inlet vertical half pipe; the right end of the half ring pipe hot taking pipe is connected with the lower end of the water outlet vertical half pipe; the hot water taking circulation passage also comprises a steam separator and a circulating pump arranged outside the tower body; the upper end of the water outlet vertical half pipe of each hot water taking circulation passage is connected in parallel to the inlet of the steam separator; the lower end of the water inlet vertical half pipe is connected in parallel to the outlet of the circulating pump; and the outlet of the steam separator is connected with the inlet of the circulating pump.