The present invention discloses an electronically controlled
evaporator and its control method. The electronically controlled
evaporator includes: a
medicine storage module, a
plunger pump
system, and a
valve seat module; the
medicine storage module includes a
medicine tank, a medicine lid, and a bent plate; the
plunger pump
system is composed of a
cylinder block, a
piston rod, a floating joint, a lead screw, a pump motor, a
pipe joint, etc., to realize the suction and pushing of
anesthetic liquid; the
valve seat module includes a
valve seat, an air outlet, a
diffusion joint, an air inlet, a lower valve plate of the
evaporation core, an upper valve plate of the
evaporation core, an
evaporation core motor, an evaporation core spring, a
ferrule, a switching valve motor, an upper valve plate of the switching valve, a lower valve plate of the switching valve, etc., to realize the on / off of the
anesthetic liquid and the volatilization of the
anesthetic. The anesthetic output by the
plunger pump of the present invention can quickly volatilize and mix with fresh gas when entering the evaporation core, thereby realizing precise control of the anesthetic concentration. At the same time, when it is necessary to close the anesthetic output, the anesthetic liquid outlet can be quickly closed.