Flame simulating device and atomizing simulation fireplace including same

A flame simulating device, comprising an outer casing, having disposed therein a mist generating chamber, an atomizing head disposed below the mist generating chamber, wherein the atomizing head has an atomizing nozzle provided with an energy gathering cover, a water retaining shield arranged above the energy gathering cover, wherein the water retaining shield is fixed to an inclined plane on the upper portion inside the mist generating chamber, an air orifice and a nozzle that is in communication with the outside of the upper surface of the outer casing, wherein the nozzle is disposed above the mist generating chamber and the nozzle is elongated, the air orifice is disposed below the nozzle, the mist generating chamber is confined in a mist generating chamber housing, the mist generating chamber is provided with a mist outlet, the mist outlet, the air orifice and the nozzle communicate with each other, a light source, wherein the light source is disposed along a longitudinal direction of the nozzle and on one side or both sides of the nozzle and a transparent cover is disposed above the light source, wherein an air flow blown from the air orifice converges by an increasingly smaller width A of an air nozzle in the air orifice and is then discharged, and while flowing to the nozzle, the converging air flow in the air nozzle in the air orifice adsorbs and leads the mist out of the mist outlet under the Venturi effect to discharge from the air nozzle in the air orifice, wherein an air duct is disposed to be connected to the air orifice, and a fan is disposed on a side wall and/or a bottom wall of the air duct, the mist outlet is disposed along the longitudinal direction of the nozzle in communication with the outside of the upper surface of the outer casing and the nozzle in communication with the outside of the upper surface of the outer casing is defined by nozzle walls symmetrically on both sides in the longitudinal direction, and the surface of each nozzle wall is an arc-shaped curved surface defining a convex nozzle surface that produces a Coanda effect of the mist flowing through the nozzle, wherein a minimum width dimension B of the nozzle walls is smaller than a width dimension of an upper outlet end of the nozzle walls and a width dimension of a lower inlet end of the nozzle walls, in communication with the outside of the upper surface of the outer casing, at least the nozzle wall on one side of the light source is made of a transparent material, and light emitted from the light source is capable of irradiating on and above an outlet of the nozzle.