Automatic solution absorption device

The utility model discloses an automatic solution absorption device which comprises an air inlet, the air inlet is respectively connected with a front-end air path cleaning exhaust port and an air inlet of a pressure reduction controller through a first three-way ball valve, an air outlet of the pressure reduction controller is connected with an air inlet end of a pressure sensor, and an air outlet end of the pressure sensor is connected with an air inlet end of a critical flow assembly; an interface I, an interface II and an interface III of the two-position three-way electromagnetic valve are respectively connected with a gas outlet end of the critical flow assembly, a waste gas emptying port and an interface I of the second three-way ball valve; an interface II and an interface III of the second three-way ball valve are respectively connected with a rear-end gas path cleaning exhaust port and a solution absorption system; the solution absorption system comprises an absorption solution storage bottle and a