A flame simulation device and atomization simulation fireplace containing the same

Abstract

The invention discloses a flame simulation device, which includes a mist generating chamber, an atomizing head, an air outlet and a nozzle. Liquid and an atomizing head are arranged inside the mist generating chamber. The atomizing head can atomize the liquid inside the mist generating chamber. The two sides of the nozzle are arranged to form Coanda surfaces. The cross section of the air outlet is a constricted shape and provides an upward blowing airflow. According to the Venturi effect, the upward blowing airflow of the air outlet will guide and attract the mist inside the mist generating chamber to float out and enter the nozzle inlet. Due to the Coanda surface on the side of the nozzle, the mist flows along the two side walls of the nozzle according to the Coanda effect and then floats out from the nozzle. The atomizing simulation fireplace also includes a light source, a transparent cover and a simulated fuel bed. The light source emits light to illuminate the mist floating out of the nozzle. The mist floats upward to form various shapes to simulate the flame effect of the floating flame, and the transparent cover can prevent the mist from entering the device to protect the electrical components.

Description

Technical Field

[0001] The invention belongs to the technical field of atomizing electric fireplaces, and relates to a flame simulation device in which a spray device forms a flame shape and an atomizing simulation fireplace comprising the same. Background Art

[0002] At present, most of the flame simulation devices of electric fireplaces on the market use a light source to illuminate the moving parts, and then the reflective elements on the moving parts reflect and project the images, such as a simulated flame simulation device mentioned in CN 200920118478.9. This flame simulation device usually requires an imaging screen, and the flame projection is flat and lacks three-dimensional effect. There are also ways to increase the three-dimensional effect of the flame simulation device by adding a simulated fuel bed with lights, but the simulated fuel bed usually only emits light by itself, and cannot form the shape of a floating flame, which is not realistic enough.

[0003] At present, there are also some atomized electric fireplaces that use fog or water vapor combined with light to achieve three-dimensional flame simulation. By opening a fire outlet in the length direction on the fuel base bed, the fog is ejected upward to form the shape of a flame. However, the flame simulation devices currently on the market usually not only need to introduce a disturbed airflow into the mist generating chamber to make the fog or water vapor gush out from the atomizer, but also need to provide a guiding airflow to guide the fog to float upward after the fog or water vapor gush out from the atomizer. The structure is complex and takes up space. In addition, since the projection light needs to irradiate upward from the bottom of the spray port and provide a channel for guiding the upward airflow, an opening is generally required between the spray port and the shell. In this way, the fog or water vapor gushing out of the fog generating chamber is not isolated from the electrical components inside the fireplace, which can easily make the interior of the electric fireplace damp, damage the components, and even threaten personal safety. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a flame simulation device. After the present invention is used for flame simulation of an atomizing electric fireplace, an opening in the length direction is set on the surface of the shell, a mist generating chamber is also set along the length direction, and a mist outlet nozzle is set facing the opening on the shell, and then the mist inside the mist generating chamber only needs to be uniformly guided out along the nozzle in the length direction and float upward, without the need to introduce a disturbed airflow into the mist generating chamber, and the airflow coming out of the mist generating chamber is guided to flow along the direction of the mist outlet of the mist generating chamber, and the Venturi effect is used to attract and guide the mist inside the mist generating chamber, and the guided airflow will not enter the mist generating chamber and directly act on it. It will not disturb the fog in the fog generating room, thus avoiding the fog in the fog generating room from flowing in an uncontrollable direction. It has a simple structure and is easy to install. The application of the Coanda surface at the nozzle can not only slow down the speed of the fog floating upward, but also increase the thickness of the fog, making the fog (flame) thicker in the length direction, and making the process of the fog floating upward more elegant, heavy and condensed. In addition, a transparent cover in the length direction is used to isolate the fog coming out of the spray port from the internal space of the product to protect the electrical components. It is suitable for most flame simulation effects.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a flame simulation device, including a mist generating chamber, an atomizing head, an air outlet and a nozzle, wherein the nozzle is in the shape of an elongated strip arranged in the length direction and is defined by nozzle walls with Coanda curved surfaces on both sides, the air outlet is arranged below the nozzle, the air outlet is defined by the air outlet walls on both sides, and the cross-sectional shape of the air outlet is a trumpet-shaped, triangular or trapezoidal contraction shape with a gentle and smooth transition, and the air outlet is contracted into an air nozzle at the top. The mist generating chamber is defined by a mist generating chamber shell and is provided with a mist outlet in the length direction, the mist outlet is communicated with the nozzle, the mist outlet is defined by the area between the air outlet wall and the mist generating chamber shell, and the airflow direction provided by the air nozzle is to blow upward along the mist outlet into the inlet end of the nozzle, liquid and an atomizing head are also provided inside the mist generating chamber, the liquid is submerged above the atomizing head to a certain height, the atomizing head is a device that can atomize the liquid, such as an atomizing head made according to the principle of ultrasonic oscillation, and one, two or more head may be provided according to the length of the nozzle, so that the mist is generated evenly along the length direction.

[0006] In addition, an air duct is arranged along the length direction of the air duct and connected to the air duct, and the air duct provides upward wind force to the air duct.

[0007] Furthermore, the air duct is arranged below the air outlet and is evenly arranged longitudinally along the air outlet, and a fan is arranged on the side wall and / or bottom wall of the air duct to provide wind force. One, two or more fans are arranged according to the length of the air duct to make the wind force uniform.

[0008] Furthermore, in order to provide more uniform wind force in the length direction of the air duct, a spoiler is provided inside the air duct. The wind force provided by the fan passes through the spoiler, so that the wind force enters the air outlet from the air duct more uniformly.

[0009] Furthermore, a heating element is provided inside the air duct, and the heating element can heat the air flow with wind force inside the air duct. Preferably, the heating element is installed on the spoiler and faces one side of the fan.

[0010] Furthermore, in order to achieve the best wind gathering effect of the bell-shaped, triangular or trapezoidal constriction of the tuyere, the width dimension A of the tuyere is preferably 0.5 mm to 6 mm.

[0011] Furthermore, the minimum dimension B of the nozzle cross section is preferably 2 mm to 20 mm.

[0012] Furthermore, a water baffle is provided inside the mist generating chamber before the mist outlet. When the atomizing head generates mist, small water droplets of larger particle size may be generated and the mist may also condense into small water droplets of larger particle size. The water baffle can prevent these small water droplets from entering the mist outlet.

[0013] Furthermore, a breathing port is provided on the mist generating chamber, and the breathing port is also provided along the length direction of the mist generating chamber. A foam made of a porous material is provided in the breathing port, and the foam has many pores inside. The interior of the mist generating chamber can keep the pressure consistent with the surrounding atmosphere through the breathing port, and the guiding airflow provided by the wind nozzle guides the mist to flow out of the mist generating chamber along the mist outlet. The guiding airflow will not blow into the mist generating chamber, that is, it will not disturb the mist in the mist generating chamber to flow around, and the mist will only flow out from the mist outlet and will not overflow from the breathing port.

[0014] The flame simulation device also includes a light source and a transparent cover. The light source is arranged directly below or obliquely below the nozzle, or on one side or both sides, and the light emitted by the light source irradiates the nozzle outlet and above upward. The light emitted by the light source can be monochromatic, preferably yellow or amber, or can be multi-colored. At least the nozzle wall on the side close to the light source is made of transparent material. In order to allow as much light as possible from the light source to irradiate upward, a transparent cover is arranged above the light source between the upper opening of the nozzle and the shell of the flame simulation device. The transparent cover can seal the area between the opening on the shell and the nozzle, and at the same time allow the light emitted by the light source to pass through the transparent cover and irradiate the nozzle outlet and above. Preferably, the transparent cover and the nozzle wall on the same side can be integrated.

[0015] The flame simulation device forms a spray device in the absence of a light source. That is, in one aspect, the present invention further provides a spray device, comprising a mist generating chamber, an atomizing head, an air outlet and a nozzle, wherein the nozzle is arranged above the mist generating chamber, the air outlet is arranged below the nozzle, the mist generating chamber is defined by a mist generating chamber shell, the mist generating chamber is provided with a mist outlet, the mist outlet, the air outlet and the nozzle are connected to each other, the airflow blown out of the air outlet gathers and is discharged as the width A of the air nozzle in the air outlet becomes smaller, and the gathered airflow uses the Venturi effect to absorb and guide the mist in the mist outlet while flowing to the nozzle and discharge it from the nozzle.

[0016] On the other hand, the present invention also provides an atomizing simulation fireplace including the flame simulation device. The technical solution adopted by the present invention to solve the technical problem is: the atomizing simulation fireplace also includes a shell and a simulated fuel bed, the mist generating chamber, the atomizing head, the air outlet, the nozzle, and the light source are all arranged inside the shell, the outlet of the nozzle is connected to the outside of the upper surface of the shell, the simulated fuel bed is arranged on the upper surface of the shell, and the simulated fuel bed does not completely cover the nozzle.

[0017] Further, the simulated fuel bed is composed of an ash bed, simulated solid fuel, transparent irregular particles such as crystal stones or glass blocks, or opaque pebbles. It can be only one of them or a combination of two or more. The ash bed is a structure that simulates the ash, residual material and residual fire produced by the combustion of real solid fuel, and the simulated solid fuel is a simulated real solid fuel, such as firewood, coke, etc. The ash bed and the simulated solid fuel can be separate or integral. The ash bed is provided with a fire outlet hole in the length direction corresponding to the position of the nozzle, and the simulated solid fuel is staggered above the fire outlet hole. The simulated charcoal bed and / or the simulated solid fuel are made of transparent or translucent materials, and the simulated charcoal bed and / or the simulated solid fuel are self-luminous simulated charcoal beds and / or simulated solid fuels with light sources inside. Part of the surface area of ​​the transparent irregular particles such as crystal stones or glass blocks or opaque pebbles is sprayed or coated in black or gray to simulate the charcoal ash that has not been completely burned out.

[0018] Furthermore, the ash bed and simulated solid fuel are self-luminous ash beds and simulated solid fuels with light sources inside and / or on the surface. The light emitted by the light source not only illuminates the outlet of the nozzle and above, but also illuminates the outlet of the fire outlet and above.

[0019] When working, the atomizing head is powered on to atomize the liquid inside the mist generating chamber, and the mist gathers above the liquid level in the mist generating chamber. The fan is powered on to generate wind force, and through the action of the spoiler, the wind is evenly blown into the air duct along the length direction, and then enters the air outlet. Since the cross-sectional shape of the air outlet is a gently rounded, triangular or trapezoidal shrinking shape, it will have a further gathering and guiding effect on the air flow in the air duct, and blow it out from the air nozzle evenly and vertically upward along the length direction. Due to the flow of air blown out of the air nozzle, a low pressure is formed in the outlet area of ​​the air nozzle, and the outlet direction of the air nozzle is to provide airflow along the direction of the mist outlet. According to the Venturi effect, the airflow blown out of the air nozzle has an adsorption effect on the mist outlet, thereby attracting the mist in the mist generating chamber to flow to this area through the mist outlet. The mist coming out of the mist outlet and the guided airflow coming out of the air nozzle form an aerosol mixture and enter the lower inlet of the nozzle together. Since the nozzle walls on both sides of the nozzle are set as Coanda surfaces, according to the Coanda effect (Coanda Effect, Coanda effect is also called Coanda effect, Coanda effect, etc., also known as wall effect) principle, as long as the curvature is not large, the fluid will flow along the surface of the object, that is, leave the original flow direction, and change to flow along the surface of the protruding object. It can be seen that the aerosol mixture entering the inlet end of the nozzle will flow along the surface of the nozzle wall, and then the aerosol mixture will be enlarged, slowly floating upward from the upper end outlet of the nozzle and entering the fire outlet. After the mist passes through the fire outlet, it floats in the gap between the simulated solid fuel or crystal stone or glass block or pebbles. At the same time, the light source arranged below the nozzle is energized to emit light that irradiates upward, and since at least the nozzle wall and transparent cover on one side close to the light source are made of transparent materials, the light emitted by the light source can penetrate the nozzle wall and transparent cover, irradiate the outlet of the fire outlet and above it, and then irradiate the aerosol mixture floating out from the fire outlet. The aerosol mixture forms various rising shapes in the process of floating upwards, and under the action of light, slowly floats in the gaps between the simulated solid fuel or crystal stone or glass block or cobblestone to form an effect similar to the shape of a floating flame, thereby simulating the flame effect of the solid fuel burning state. And because the nozzle is long, a burning flame in the length direction is formed.

[0020] Since the transparent cover seals the area between the opening on the housing and the nozzle, the mist floating out of the nozzle cannot enter the interior of the flame simulation device, thereby protecting the electrical components inside the flame simulation device.

[0021] Since the heating element is arranged inside the air duct, the air blown out from the air nozzle has a certain amount of heat, and after mixing with the mist, the aerosol mixture also has a certain amount of heat and enters the nozzle, so that the aerosol mixture also has a certain amount of heat after floating out of the nozzle. According to the principle of gas thermodynamics, hot gas rises and cold gas sinks, then the aerosol mixture will have the power to continue to float upward under the action of heat, so that the flame height is higher and larger, and the flame has the effect of burning fiercely.

[0022] Furthermore, the light emitted by the light source can be monochromatic or polychromatic, and can form various flame color effects.

[0023] Furthermore, a liquid level meter is provided in the mist generating chamber, which can detect whether the liquid in the mist generating chamber is within the working liquid level range of the atomizing head, and control the liquid level in the mist generating chamber to be within the working liquid level range of the atomizing head through a certain control program and a liquid inlet pipeline.

[0024] Furthermore, a liquid storage tank is provided inside the shell, and liquid can be stored in the liquid storage tank to supply the mist generating chamber with liquid for replenishment.

[0025] Furthermore, the atomized simulated fireplace can be placed as a whole in a fireplace box to simulate the appearance and structure of a traditional fireplace.

[0026] Another aspect of the present invention provides a flame simulation method, comprising the following steps:

[0027] Providing a mist generating chamber having a mist outlet, wherein liquid is atomized in the mist generating chamber to generate mist;

[0028] forming a low-pressure area, wherein the low-pressure area is adjacent to the mist outlet and communicates with the mist outlet;

[0029] A nozzle is provided which is in communication with the low-pressure area; the nozzle is located above the low-pressure area; the low-pressure area has an adsorption effect on the fog in the fog generating chamber, so that the fog in the fog generating chamber flows out from the fog outlet, flows to the low-pressure area, and flows upward through the nozzle;

[0030] A light source is provided so that the light emitted by the light source can illuminate the outlet of the nozzle and the area above the nozzle.

[0031] In the simulation method, the low pressure area is generated by the Venturi effect.

[0032] Compared with the prior art, the advantages of the present invention are: since only one guiding airflow is provided to guide the fog inside the fog generating chamber out, the structure is simple and the installation is convenient, and the guiding airflow is adopted to absorb the fog in the fog generating chamber outward, and the guiding airflow will not directly enter the fog generating chamber, and will not disrupt the flow direction of the fog, so that the flow direction of the fog is controllable and uniform, and the fog is isolated from the electrical components such as the light source to protect the electrical components from being corroded and damaged by the fog, and is suitable for most flame simulation devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional partial cross-sectional schematic diagram of the flame simulation device of Example 1 of the present invention.

[0034] Figure 2 It is a schematic diagram of the cross-section and half-section structure of the flame simulation device of Example 1 of the present invention.

[0035] Figure 3 It is a schematic diagram of the stepped cross-sectional structure at the AA position of the flame simulation device of Example 1 of the present invention.

[0036] Figure 4 It is a three-dimensional partial cross-sectional schematic diagram of the flame simulation device of Example 1 of the present invention from another viewing angle.

[0037] Figure 5 It is a partial enlarged schematic diagram of the tuyere cross section of the flame simulation device of Example 1 of the present invention.

[0038] Figure 6 It is a partial enlarged schematic diagram of the nozzle cross section of the flame simulation device of Example 1 of the present invention.

[0039] Figure 7 Schematic diagram of airflow direction and flame simulation of the flame simulation device of Example 1 of the present invention.

[0040] Figure 8 It is a schematic diagram of the half-section structure of the flame simulation device of Example 2 of the present invention.

[0041] Fig. 9 It is a three-dimensional partial cross-sectional schematic diagram of the flame simulation device of Example 2 of the present invention.

[0042] Fig.10 It is a three-dimensional partial cross-sectional schematic diagram of an atomizing simulated fireplace according to Example 3 of the present invention.

[0043] Fig.11 This is a schematic diagram of the half-section structure of the atomizing simulated fireplace according to Example 3 of the present invention.

[0044] Fig.12 This is a schematic diagram of the stepped cross-sectional structure of the BB position of the atomizing simulated fireplace according to Example 3 of the present invention.

[0045] Fig.13 It is a three-dimensional partial cross-sectional schematic diagram of another viewing angle of the atomizing simulated fireplace in Example 3 of the present invention.

[0046] Fig.14 It is a partially enlarged schematic diagram of the cross section of the air outlet of the atomizing simulated fireplace according to Example 3 of the present invention.

[0047] Fig.15 It is a partially enlarged schematic diagram of the cross section of the nozzle of the atomizing simulated fireplace according to Example 3 of the present invention.

[0048] Fig.16 Schematic diagram of airflow direction and flame simulation of the atomizing simulated fireplace according to Example 3 of the present invention.

[0049] Fig.17 This is a schematic diagram of the three-dimensional structure of the atomizing simulated fireplace according to Example 3 of the present invention.

[0050] Fig.18 This is a schematic diagram of the explosion structure of the atomizing simulated fireplace according to Example 3 of the present invention.

[0051] Fig.19 This is a schematic diagram of the half-section structure of the atomizing simulated fireplace according to Example 4 of the present invention.

[0052] Fig. 20 This is a schematic diagram of the three-dimensional structure of the atomizing simulated fireplace according to Example 4 of the present invention.

[0053] Fig.21 This is a schematic diagram of the three-dimensional structure of the atomizing simulated fireplace according to Example 5 of the present invention.

[0054] Fig. 22 This is a schematic diagram of the half-section structure of the atomizing simulated fireplace according to Example 5 of the present invention.

[0055] Fig.23 This is a schematic diagram of the explosion structure of the atomizing simulated fireplace according to Example 5 of the present invention.

[0056] The corresponding names of the components in the figure are: 1-mist generating chamber; 2-atomizing head; 3-air outlet; 4-nozzle; 5-light source; 6-air duct; 7-housing; 8-liquid storage tank; 9-simulated fuel bed; 10-liquid level gauge; 20-fireplace box; 30-decorative frame; 11-mist generating chamber shell; 12-mist outlet; 13-breathing port; 14-foam; 15-water baffle; 31-air outlet wall; 32-air nozzle; 41-nozzle wall; 42-transparent cover; 61-fan; 62-spoiler; 63-heating element; 81-liquid storage tank liquid level gauge; 91-ash bed; 92-simulated solid fuel; 201-heating air outlet device; 93-pebbles; 911-fire outlet; 912-ash bed light source; 921-simulated solid fuel light source;. DETAILED DESCRIPTION

[0057] The present invention is further described in detail below with reference to the accompanying drawings.

[0058] Example 1

[0059] like Figure 1 to Figure 7As shown, a flame simulation device comprises a mist generating chamber 1, an atomizing head 2, an air port 3 and a nozzle 4. The flame simulation device further comprises a light source 5 and a transparent cover 42. The nozzle 4 is in the shape of an elongated strip arranged in the length direction and is limited by nozzle walls 41 with Coanda curved surfaces on both sides. The Coanda surface in the present embodiment is a section of an arc curved surface. The minimum dimension B of the nozzle walls 41 on both sides of the cross section of the nozzle 4 is preferably 2 mm to 20 mm. The dimension shown in the figure in the present embodiment is about 5 mm. The air port 3 is arranged below the nozzle 4. In the present embodiment, the dimension of the air port 4 in the length direction is slightly longer than the length dimension of the nozzle 4. The air port 3 is limited by the air port walls 31 on both sides. The cross-sectional shape of the air port 3 is a trumpet shape, a triangle or a trapezoid with a gentle and smooth transition. The top of the air port 3 is narrowed into an air nozzle 32. The width dimension A of the air nozzle 32 in the cross section of the air port 3 is preferably 0.5 mm to 6 mm. In the present embodiment, the figure shows about 2 mm. The inner surfaces of the air port wall 31 and the nozzle wall 41 are both smooth surfaces. In the present embodiment 1, the mist generating chamber 1 is symmetrically arranged on both sides of the air outlet, and the mist generating chamber 1 is limited by the area surrounded by the mist generating chamber shell 11. The mist generating chamber 1 is provided with a mist outlet 12 along the length direction of the nozzle 4, and the mist outlet 12 is connected with the nozzle 4. The mist outlet 12 is limited by the area between the air outlet wall 31 and the mist generating chamber shell 11, and the air flow direction provided by the air nozzle 32 is to blow upward into the inlet end of the nozzle 4 along the mist outlet 12. The atomizing head 2 is an atomizing head made according to the ultrasonic oscillation principle. The atomizing head 2 is symmetrically arranged on both sides of the mist generating chamber 1 along the length direction. In the present embodiment, there are three atomizing heads 2 on each side of the mist generating chamber 1, so that the generated mist is more uniform along the length direction, and the spray port of the atomizing head 2 is provided with a focusing cover 21. Liquid is also provided in the mist generating chamber 1. In the present embodiment 1 In the embodiment, the liquid is water, and the liquid is above the atomizing head 2 to a certain height, but can be lower or higher than a certain height of the outlet of the energy collecting cover 21. Inside the mist generating chamber 1, before the mist outlet 12, a water baffle 15 is also provided. The light source 5 is arranged obliquely below the nozzle 4. In the present embodiment 1, the light source 5 is only arranged on one side of the nozzle 4, and the light emitted by the light source 5 irradiates the outlet of the nozzle 4 and above it upwards. At least the nozzle wall 41 on the side close to the light source 5 is made of transparent material. The transparent cover 42 is arranged on the nozzle wall 41 on the side close to the light source 5, and seals the opening area between the upper outlet of the nozzle 4 and the housing 7. In the present embodiment, the transparent cover 42 and the nozzle wall are integral. An air duct 6 is also arranged below the air outlet 3. The air duct 6 is also arranged in a long strip in the length direction of the air outlet 3. The air duct 6 is provided with a guide airflow for blowing upward to the air outlet 3 by a fan 61, and a plurality of fans 61 can be arranged according to the length size. In the present embodiment, two fans 61 are provided. A spoiler 62 is also provided in the air duct 6 , and the disturbance of the spoiler 62 can make the wind force provided by the fan 61 more evenly distributed along the length direction in the air duct 6 .A heating element 63 is also provided inside the air duct 6. The heating element 63 is installed on the side of the spoiler 62 facing the fan 61. The heating element 63 can heat the guided airflow provided by the fan 61, so that the air with wind force in the air duct is hot air.

[0060] When working, the atomizing head 2 is powered on to atomize the liquid, and the mist gathers above the liquid surface in the mist generating chamber 1. The fan 61 is powered on to generate wind force, and the wind is blown into the air duct 6 evenly along the length direction through the spoiler 62, and then enters the air outlet 3. Since the cross-sectional shape of the air outlet 3 is a trumpet-shaped, triangular or trapezoidal shrinking shape with a gentle and smooth transition, the airflow in the air duct 6 will be further gathered and corrected, and blown out from the air nozzle 32 evenly and vertically upward along the length direction. Since the heating element 63 heats the air in the air duct 6, the air blown into the air outlet 3 is hot air, and the air blown out from the air nozzle 32 is also hot air. Since the nozzle 4 is arranged above the air nozzle 32, the hot air blown out from the air nozzle 32 directly enters the lower inlet of the nozzle 4, and in the mist generating chamber 1, the area near the mist outlet 12 forms a low pressure area due to the flow of the air blown out from the air nozzle 32, and the outlet direction of the air nozzle 32 is to provide airflow along the direction of the mist outlet 12. According to the Venturi effect, the airflow blown out from the air nozzle 32 has an adsorption effect on the mist outlet 12, thereby attracting the mist in the mist generating chamber 1 to flow to this area through the mist outlet 12, and the mist from the mist outlet 12 and the guide airflow from the air nozzle 32 form an aerosol mixture and enter the lower inlet of the nozzle 4. The nozzle walls 41 on both sides of the nozzle 4 are arranged as Coanda surfaces. According to the Coanda effect principle, as long as the curvature is not large, the fluid will flow along the surface of the object, that is, leave the original flow direction and change to flow along the surface of the protruding object. It can be seen that the aerosol mixture entering the inlet end of the nozzle 4 will flow along the surface of the nozzle wall 41, and then the aerosol mixture will be enlarged and slowly float upward from the upper outlet of the nozzle 4. And because the aerosol mixture has a certain amount of heat, which is higher than the temperature of the surrounding space, according to the principle of thermodynamics, the aerosol mixture has the power to continue to float upward under the action of heat, so that the aerosol mixture floats higher. The light source 5 arranged at the lower side of the nozzle 4 is energized to emit light that irradiates upward, and because the nozzle wall 41 and the transparent cover 42 on one side close to the nozzle 4 are made of transparent materials, the light emitted by the light source 5 can penetrate the nozzle wall 41 and the transparent cover 42, irradiate the upper outlet of the nozzle 4 and above it, and then irradiate the aerosol mixture that slowly floats out of the upper outlet of the nozzle 4. Various rising shapes will be formed in the process of the aerosol mixture floating upward, and under the action of light irradiation, an effect similar to the shape of the flame burning flame floating is formed, thereby simulating the flame burning state. And because the nozzle 4 is long and strip-shaped, a burning flame in the length direction is formed. The light emitted by the light source 5 can be monochromatic, preferably yellow or amber, or multi-color.

[0061] Since the transparent cover 42 seals the area between the opening on the housing 7 and the nozzle 4, the mist floating out of the nozzle 4 cannot enter the interior of the flame simulation device, thereby protecting the electrical components inside the flame simulation device. Since the mist in the mist generating chamber 1 flows toward the mist outlet 12, the overall air pressure in the mist generating chamber 1 will be reduced, so a breathing port 13 is provided in the mist generating chamber 1 away from the mist outlet 12, and the breathing port 13 is also provided in the length direction of the mist generating chamber 1. The interior of the mist generating chamber 1 is connected to the atmosphere through the breathing port 13, and the interior of the mist generating chamber 1 can maintain the same air pressure as the surrounding atmosphere. In order to prevent the formation of a sufficiently low-pressure area in the area near the mist outlet 12, when the mist generating chamber 1 does not reach enough airflow flowing toward the mist outlet 12, the mist in the mist generating chamber 1 may flow back from the breathing port 13, and a foam sponge 14 is provided in the breathing port 13. The foam sponge 14 is made of a porous material and has many pores. These pores can allow air to pass through, but can prevent fine water droplet-shaped mist from passing through.

[0062] Example 2

[0063] like Figure 8-Figure 9 As shown, a flame simulation device is provided. Compared with the embodiment 1, in the embodiment 2, the mist generating chamber 1 is arranged on one side relative to the air outlet 3 and the nozzle 4 , and the light source 5 is arranged on the other side relative to the mist generating chamber 1 .

[0064] Since the mist generating chamber 1 is only arranged on one side of the air outlet 3, it can save space, is easy to install, and can increase the volume of the liquid storage tank 8.

[0065] Example 3

[0066] like Figures 10 to 18As shown, an atomization simulation fireplace includes a mist generating chamber 1, an atomizing head 2, an air outlet 3, a nozzle 4, a light source 5, a shell 7 and a simulated fuel bed 9. The nozzle 4 is a long strip arranged in the length direction and is limited by nozzle walls 41 with Coanda curved surfaces on both sides. The Coanda surface in this embodiment is a section of circular arc curved surface. The minimum dimension B of the nozzle walls 41 on both sides of the cross section of the nozzle 4 is preferably 2mm~20mm, and the illustrated dimension in this embodiment is about 5mm. The air outlet 3 is arranged below the nozzle 4. In this embodiment, the dimension of the air outlet 4 in the length direction is slightly longer than the length dimension of the nozzle 4. The air outlet 3 is limited by the air outlet walls 31 on both sides. The cross-sectional shape of the air outlet 3 is a trumpet shape with a gentle and smooth transition. The top of the air outlet 3 is narrowed into an air nozzle 32. The width dimension A of the air nozzle 32 in the cross section of the air outlet 3 is preferably 0.5mm~6mm, and is about 2mm in this embodiment. The inner surfaces of the air outlet wall 31 and the nozzle wall 41 are both smooth surfaces. In this embodiment, the mist generating chamber 1 is symmetrically arranged on both sides of the air outlet. The mist generating chamber 1 is composed of a mist generating chamber housing 11. The enclosed area is limited, and a mist outlet 12 is provided on the mist generating chamber 1 along the length direction of the nozzle 4. The mist outlet 12 is connected to the nozzle 4, and the mist outlet 12 is limited by the area between the air outlet wall 31 and the mist generating chamber shell 11, and the air flow direction provided by the air nozzle 32 is to blow upward along the mist outlet 12 into the inlet end of the nozzle 4. The atomizing head 2 is an atomizing head made according to the principle of ultrasonic oscillation, and the atomizing heads 2 are symmetrically arranged on both sides of the mist generating chamber 1 along the length direction. In this embodiment, there are three atomizing heads 2 on each side of the mist generating chamber 1, so that the generated mist is more uniform along the length direction, and the spray port of the atomizing head 2 is provided with a focusing hood 21, and liquid is also provided in the mist generating chamber 1. In this embodiment 1, the liquid is water, and the liquid submerges the atomizing head 2 to a certain height, but can be lower than or higher than a certain height of the outlet of the focusing hood 21, and a water baffle 15 is also provided inside the mist generating chamber 1 before the mist outlet 12. The light source 5 is arranged directly below or obliquely below the nozzle 4, or on one side or both sides, and the light emitted by the light source 5 can be monochromatic, preferably yellow or amber, or can be multi-colored. At least the nozzle wall 41 on the side close to the light source 5 is made of transparent material. A transparent cover 42 is arranged on the nozzle wall 41 on the side close to the light source 5, and seals the opening area between the upper end outlet of the nozzle 4 and the housing 7. In this embodiment, the transparent cover 42 and the nozzle wall are integrally formed.

[0067] The mist generating chamber 1, the atomizing head 2, the air outlet 3, the nozzle 4, and the light source 5 are all arranged in the inner part of the shell 7, and the outlet of the nozzle 4 is connected to the outside of the upper surface of the shell 7. In this embodiment, the simulated fuel bed 9 is composed of an ash bed 91 and a simulated solid fuel 92, which are arranged on the upper surface of the shell 7. The ash bed 91 is provided with a fire outlet hole 911 in the length direction corresponding to the outlet position of the nozzle 4. The simulated solid fuel 92 is placed crosswise above the ash bed 91, and the light emitted by the light source 5 can be irradiated on the outlet of the fire outlet hole 911 and above. The ash bed 91 and the simulated solid fuel 92 are both made of translucent materials, and an ash bed light source 912 is arranged inside the ash bed, and a simulated solid fuel light source 921 is arranged inside the simulated solid fuel 92. The ash bed light source 912 can make the ash bed 91 self-luminous to simulate the state of the burning of the ash embers, and the simulated solid fuel 921 can make the simulated solid fuel 92 self-luminous to simulate the state of the burning of the real solid fuel.

[0068] An air duct 6 is also provided below the air outlet 3. The air duct 6 is also in a long strip shape and is provided along the length direction of the air outlet 3. The air duct 6 is provided with a guide airflow for blowing upwards to the air outlet 3 by a fan 61, and multiple fans 61 can be provided according to the length dimension. In this embodiment, two fans 61 are provided. A spoiler 62 is also provided in the air duct 6. The disturbance of the spoiler 62 can make the wind force provided by the fan 61 more evenly distributed in the length direction of the air duct 6. A heating element 63 is also provided inside the air duct 6. The heating element 63 is installed on the side of the spoiler 62 facing the fan 61. The heating element 63 can heat the guide airflow provided by the fan 61, so that the air with wind force in the air duct 6 is hot air.

[0069] A liquid level meter 10 is also provided in the mist generating chamber 1 to detect whether the liquid level in the mist generating chamber 1 is within the liquid level range required for the operation of the atomizing head 2. A liquid storage tank 8 is provided near the mist generating chamber 1 to store spare liquid provided to the mist generating chamber 1. Preferably, in the present embodiment 1, the lowest water level of the liquid storage tank 8 is higher than the highest water level allowed by the mist generating chamber 1.

[0070] When working, the atomizing head 2 is powered on to atomize the liquid, and the mist gathers above the liquid level in the mist generating chamber 1. The fan 61 is powered on to generate wind force, and the wind is blown into the air duct 6 evenly along the length direction through the spoiler 62, and then enters the air outlet 3. Since the cross-sectional shape of the air outlet 3 is a trumpet-shaped contraction shape with a gentle and smooth transition, the airflow in the air duct 6 will be further gathered and corrected, and blown out from the air nozzle 32 evenly and vertically upward along the length direction. Since the heating element 63 heats the air in the air duct 6, the air blown into the air outlet 3 is hot air, and the air blown out from the air nozzle 32 is also hot air. Since the nozzle 4 is arranged above the air nozzle 32, the hot air blown out from the air nozzle 32 directly enters the lower inlet of the nozzle 4, and in the mist generating chamber 1, the area near the mist outlet 12 forms a low pressure area due to the flow of the air blown out from the air nozzle 32, and the outlet direction of the air nozzle 32 is to provide airflow along the direction of the mist outlet 12. According to the Venturi effect, the airflow blown out from the air nozzle 32 has an adsorption effect on the mist outlet 12, thereby attracting the mist in the mist generating chamber 1 to flow to this area through the mist outlet 12, and the mist from the mist outlet 12 and the guide airflow from the air nozzle 32 form an aerosol mixture and enter the lower inlet of the nozzle 4. The nozzle walls 41 on both sides of the nozzle 4 are arranged as Coanda surfaces. According to the Coanda effect principle, as long as the curvature is not large, the fluid will flow along the surface of the object, that is, leave the original flow direction and change to flow along the surface of the protruding object. It can be known that the aerosol mixture entering the inlet end of the nozzle 4 will flow along the surface of the nozzle wall 41, thereby enlarging the aerosol mixture and slowly floating upward from the upper outlet of the nozzle 4. And because the aerosol mixture has a certain amount of heat, which is higher than the temperature of the surrounding space, according to the principle of thermodynamics, the aerosol mixture continues to float upward under the action of heat, and then floats upward from the gap of the simulated solid fuel 92 through the fire outlet 911. The light source 5 arranged at the lower side of the nozzle 4 is energized to emit light that irradiates upward, and because the nozzle wall 41 and the transparent cover on one side close to the nozzle 4 are made of transparent materials, the light emitted by the light source 5 can penetrate the nozzle wall 41 and the transparent cover, irradiate the outlet of the fire outlet 911 and above it, and thus irradiate the slowly floating aerosol mixture. Since the aerosol mixture will form various rising shapes in the process of floating upward, and under the action of light irradiation, an effect similar to the floating shape of flame burning flames is formed around the simulated solid fuel 92 and / or above the ash bed 91, thereby simulating the flame burning state. And because the nozzle 4 is in the shape of an elongated strip, a burning flame in the length direction is formed. The light emitted by the light source 5 can be monochromatic, preferably yellow or amber, or can be multi-colored.

[0071] When the light emitted by the light source 5 shines on the mist, forming the effect of burning flames and fluttering flames on the simulated fuel bed 9, the ash bed light source 712 inside the ash bed 91 emits light so that the ash bed 91 simulates the state of burning embers and residual flames, and the simulated solid fuel light source 921 inside the simulated solid fuel 92 emits light so that the simulated solid fuel 92 simulates the state of real solid fuel burning, so that the ash bed 91 and the simulated solid fuel 92 complement each other with the mist simulated flames, and together constitute a flame state simulating the burning of real fuel.

[0072] Since the transparent cover 42 seals the area between the opening on the housing 7 and the nozzle 4, the mist from the nozzle 4 cannot enter the interior of the flame simulation device, thereby protecting the electrical components inside the flame simulation device.

[0073] Since the mist in the mist generating chamber 1 flows toward the mist outlet 12, the overall air pressure in the mist generating chamber 1 will be reduced, so a breathing port 13 is provided in the mist generating chamber 1 away from the mist outlet 12, and the breathing port 13 is also provided along the length direction of the mist generating chamber 1. The interior of the mist generating chamber 1 is connected to the atmosphere through the breathing port 13, so that the interior of the mist generating chamber 1 as a whole can maintain the same air pressure as the surrounding atmosphere. In order to prevent the formation of a sufficiently low-pressure area in the area near the mist outlet 12, when there is not enough airflow flowing toward the mist outlet 12 inside the mist generating chamber 1, the mist in the mist generating chamber 1 may flow back from the breathing port 13, and a foam sponge 14 is provided in the breathing port 13. The foam sponge 14 is made of a porous material and has many pores. These pores allow air to pass through, but can prevent fine water droplets of mist from passing through.

[0074] Example 4

[0075] like Figure 19-20 As shown, an atomization simulation fireplace includes a mist generating chamber 1, an atomizing head 2, an air outlet 3, a nozzle 4, a light source 5, a housing 7 and a simulated fuel bed 9. Compared with Example 3, the mist generating chamber 1 is arranged on one side relative to the air outlet 3 and the nozzle 4, the light source 5 is arranged on both sides of the nozzle 4, and the atomizing head 2 is also arranged on one side and has multiple arranged along the length direction. Since the mist generating chamber 1 is only arranged on one side of the air outlet 3, space can be saved, the volume of the liquid storage tank 8 can be increased, and the fireplace can work for a longer time.

[0076] In addition, the simulated fuel bed 9 is changed to consist of an ash bed 91 and pebbles 93 , and the pebbles 93 are randomly arranged above the ash bed 91 . After the gas-mist mixture floats out from the fire outlet 911 , it simulates the shape of flames above the pebbles 93 .

[0077] A liquid tank level gauge 81 is provided in the liquid tank 8, and the liquid tank level gauge 81 monitors the change of the liquid level in the liquid tank 8, so as to timely remind the user to add the liquid used for atomization.

[0078] Example 5

[0079] like Figure 21 to Figure 23 As shown, an atomizing simulated fireplace, based on Example 3, further includes a fireplace box 20 and a decorative frame 30. The atomizing simulated fireplace described in Example 1 is arranged as a whole at the lower interior of the fireplace box 20, and the decorative frame 30 is arranged on the outside of the front of the fireplace box 20, thereby increasing the overall ornamental value of the atomizing simulated fireplace.

[0080] A heating air outlet device 201 is also provided on the top of the fireplace box 20. The heating air outlet device 201 can blow hot air toward the front of the fireplace box 20, so that the atomized simulated fireplace has a heating function while having a flame viewing effect. The air inlet of the heating air outlet device 201 faces the fire outlet 911. Since the heating air outlet device 201 forms a suction effect when the air enters, the mist floating out of the fire outlet 911 is further driven upward, so that the height of the flame simulated by the mist is higher.

[0081] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A flame simulation device, characterized in that: The invention comprises a mist generating chamber (1), an air outlet (3) and a nozzle (4), wherein the nozzle (4) is arranged above the mist generating chamber (1), and the air outlet (3) is arranged below the nozzle (4); the mist generating chamber (1) is defined by a mist generating chamber shell (11); the mist generating chamber (1) is provided with a mist outlet (12); the mist outlet (12), the air outlet (3) and the nozzle (4) are connected to each other; the airflow blown out of the air outlet (3) is gathered and discharged as the width A of the air nozzle (32) in the air outlet (3) decreases; the gathered airflow, while flowing toward the nozzle (4), uses the Venturi effect to absorb and guide the mist in the mist outlet (12) and discharge it from the nozzle (4); The nozzle (4) is in the shape of an elongated strip, and the mist outlet (12) is arranged along the length direction of the nozzle (4); the nozzle (4) is defined by nozzle walls (41) on both sides in the length direction, and the surface of the nozzle wall (41) is a smooth Coanda curved surface, which is arranged to protrude toward the inner curved surface; the aerosol mixture at the inlet end of the nozzle will flow along the surface of the nozzle wall (41), thereby amplifying the aerosol mixture and slowly floating upward from the upper end outlet of the nozzle (4); an air duct (6) is arranged to be connected to the air outlet (3), and the air duct (6) is arranged below the air outlet (3) and is evenly arranged along the length direction of the air outlet (3); a fan (61) is arranged on the side wall and / or the bottom wall of the air duct (6); and a heating element (63) is arranged inside the air duct (6).

2. A flame simulation device according to claim 1, characterized in that: The mist outlet (12) is located close to the air outlet (3).

3. A flame simulation device according to claim 1, characterized in that: The cross-sectional shape of the air outlet (3) is a trumpet-shaped, triangular or trapezoidal constriction shape with a gentle and smooth transition, and an air nozzle (32) is formed at the constriction.

4. A flame simulation device according to claim 1, characterized in that: The air outlet (3) is defined by air outlet walls (31) on both sides in the length direction; and the mist outlet (12) is defined by the air outlet walls (31) and the mist generating chamber shell (11).

5. A flame simulation device according to claim 1, characterized in that: A spoiler (62) is arranged inside the air duct (6) along the length direction.

6. A flame simulation device according to claim 1, characterized in that: The dimension B of the cross section of the nozzle (4) at the point where the Coanda surfaces of the nozzle walls (41) on both sides are closest is 2 mm to 20 mm.

7. A flame simulation device according to claim 3, characterized in that: The width dimension A of the air nozzle (32) is 0.5 mm to 6 mm.

8. A flame simulation device according to claim 1, characterized in that: It also comprises a light source (5), the light source (5) being arranged along the length direction of the nozzle (4), and on one or both sides of the nozzle (4), at least the nozzle wall (41) on one side of the light source (5) is made of a transparent material, and the light emitted by the light source (5) is irradiated on the outlet of the nozzle (4) and above the outlet.

9. A flame simulation device according to claim 8, characterized in that: A transparent cover (42) is provided between the upper opening of the nozzle (4) and the outer shell (7) of the flame simulation device and above the light source (5); the transparent cover (42) is capable of sealing the area between the opening on the outer shell (7) and the nozzle (4); the transparent cover (42) is made of a transparent material.

10. An atomized simulated fireplace, characterized in that: The invention comprises the flame simulation device as claimed in claim 9.

11. The atomization simulation fireplace according to claim 10, characterized in that: Also includes a housing (7) and a simulated fuel bed (9); The light emitted by the light source (5) irradiates the outlet of the nozzle (4) and the area above it; The mist generating chamber (1), the atomizing head (2), the air outlet (3), the nozzle (4), and the light source (5) are all arranged inside the outer shell (7), and the simulated fuel bed (9) is arranged on the upper surface of the outer shell (7).

12. The atomizing simulated fireplace according to claim 11, characterized in that: The outlet of the nozzle (4) is in communication with the upper surface of the housing (7).

13. The atomizing simulation fireplace according to claim 11, characterized in that: The simulated fuel bed (9) is provided with a fire outlet hole (911) in the length direction facing the outlet position of the nozzle (4).

14. The atomizing simulated fireplace according to claim 11, characterized in that: The simulated fuel bed (9) comprises a decoration; the structure of the decoration is at least one of an ash bed (91), simulated solid fuel (92), crystal stones, pebbles (93) and glass blocks.

15. The atomizing simulated fireplace according to claim 11, characterized in that: The atomizing simulated fireplace also includes a liquid level meter (10) and a liquid storage tank (8). The liquid level meter (10) is arranged in the mist generating chamber (1) and is used to detect whether the liquid level in the mist generating chamber (1) is within a required range. The liquid storage tank (8) stores liquid and replenishes the liquid to the mist generating chamber (1).

16. The atomizing simulated fireplace according to claim 11, characterized in that: The atomizing simulated fireplace is placed as a whole in a fireplace box (20).

17. A flame simulation method, implemented based on the flame simulation device according to claim 1, characterized in that: The following steps are involved: A mist generating chamber (1) having a mist outlet is provided, and liquid is atomized in the mist generating chamber (1) to generate mist; forming a low-pressure area, the low-pressure area being adjacent to the mist outlet (12) and communicating with the mist outlet (12); A nozzle (4) is provided which is in communication with the low-pressure area; the nozzle (4) is located above the low-pressure area; the low-pressure area has an adsorption effect on the mist in the mist generating chamber (1), so that the mist in the mist generating chamber (1) flows out from the mist outlet (12), flows toward the low-pressure area, and flows out upward through the nozzle (4); A light source (5) is provided so that light emitted by the light source (5) is irradiated onto the outlet of the nozzle (4) and the area above the nozzle (4).

18. A flame simulation method according to claim 17, characterized in that: The low pressure region is generated by the Venturi effect.

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