Water mist washing device

Abstract

The application relates to the air purification technical field and discloses a water mist washing device. The water mist washing device provided by the application comprises a shell, a fan, a wind tube, a humidifying mechanism and a turbine. The fan comprises a volute and a wind wheel, the volute comprises an air inlet part, and the wind wheel is located in the volute; the wind tube is in a cylindrical shape, the wind tube comprises a wind tube inlet and a wind tube outlet, and the wind tube outlet is communicated with the air inlet part through a ventilation opening of the shell; the humidifying mechanism is used for generating water mist so that the water mist is mixed with air to become a mist mixture; the turbine is arranged in the wind tube, the turbine divides the wind tube to form a spiral air duct, so that the mist mixture collides with the inner wall surface of the turbine and condenses when passing through the spiral air duct, the pollutants in the mist mixture flow along the wall surface to the bottom of the wind tube together with water drops, and the clean air of the mist mixture forms a rotating air flow at the air inlet part. The wind tube and the turbine are additionally arranged at the air inlet part of the fan, the mist mixture collides with the wall surface and condenses in the spiral air duct, and the effects of humidifying and purifying air can be achieved at the same time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air purification, for example to a water mist washing device. BACKGROUND

[0002] According to the survey, each person spends at least half of the time in the indoor environment, and the elderly, children, pregnant women and patients spend more time in the indoor environment, and the requirement for air quality is also higher. The types of pollution to indoor air mainly include three categories: solid particles such as smoke, pollen and dust; microorganisms such as viruses, bacteria, spores and fungi; and volatile harmful gases such as formaldehyde and toluene. Therefore, people urgently need to breathe clean air. According to the application field, air purifiers can be divided into: household air purifiers, vehicle-mounted air purifiers, medical air purifiers and engineering air purifiers, etc., and the household air purifier is an air purifier suitable for home use to remove indoor air pollution and purify indoor air. Most of the existing air purification technologies are in the form of filter screen interception, and most of them use HEPA and activated carbon materials. Since the filter screen structure required to remove PM2.5 level fine suspended particles is very fine, the filter screen must be frequently replaced and cleaned, which is relatively cumbersome.

[0003] In the related art, in order to solve the above problems, an air purification device for generating activated water by using plasma to treat pollutants is disclosed, which includes a plasma activated water generating unit, an atomized water generating unit, a plasma discharge unit and an ozone removal unit arranged in sequence along the air flow direction; the atomized water generating unit includes a water tank and an ultrasonic atomizer arranged in the water tank; the plasma activated water generating unit includes a quartz glass tube arranged in the water tank in the vertical direction, a hollow high-voltage electrode is arranged in the quartz glass tube, and a ground electrode is arranged on the periphery of the quartz glass tube; the quartz glass tube has an inner layer and an outer layer, which cooperates to cover the inner and outer sides of the high-voltage electrode; air forms gas-liquid mixed medium barrier discharge plasma by cooperating with the quartz glass tube, the high-voltage electrode and the ground electrode, and forms activated water in the water tank. The activated water is mixed with the air entering from the high-voltage electrode, and then the activated water mist is formed by the ultrasonic atomizer and delivered to the plasma discharge unit. The device fully utilizes the advantages of different plasma sources to integrally purify bacteria, viruses, particulate matter and volatile organic compounds in indoor air, and effectively purifies indoor air.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] Although the plasma technology proves to have a certain effect on sterilization and dust removal after ionizing air, the propagation distance of the generated plasma is very short, which will be neutralized and annihilated near the air outlet of the device, and the purification effect is limited, and the air cannot be humidified. SUMMARY

[0006] The following presents a simplified summary of some aspects of the disclosed embodiments in order to provide a basic understanding of such embodiments. This summary is not an extensive overview of the embodiments described in detail in the following detailed description, and is intended neither to identify key / critical elements nor to delineate the scope of such embodiments. Rather, the primary purpose of this summary is to present some concepts of the embodiments in a simplified form as a prelude to the more detailed description below.

[0007] The disclosed embodiments provide a water mist washing device, which is provided with a wind tube and a turbine at the air inlet of the fan, so that the mist mixture collides with the inner wall of the turbine when passing through the spiral air duct, and the pollutants in the mist mixture and water droplets flow along the wall to the bottom of the wind tube, and the clean air of the mist mixture forms a rotating air flow at the air inlet, which not only has a good purification effect on the air, but also can humidify the air.

[0008] In some embodiments, the water mist washing device comprises a housing, a fan, a wind tube, a humidifying mechanism and a turbine. The housing is provided with a ventilation opening in an outer wall surface, and the fan is fixedly arranged at a first end surface of the ventilation opening. The fan comprises a volute and a fan wheel, and the volute comprises an air inlet. The wind tube is located in the housing and is in the shape of a cylinder. The wind tube comprises a wind tube inlet and a wind tube outlet. The wind tube outlet is fixed to a second end surface of the ventilation opening, so that the air inlet of the volute and the wind tube outlet are communicated through the ventilation opening. The humidifying mechanism is located in the housing and is used to generate water mist, so that the water mist is mixed with air to become a mist mixture. The turbine is arranged in the wind tube and is in the shape of a spiral. The turbine divides the internal space of the wind tube and forms a spiral air duct, so that the mist mixture collides with the inner wall of the turbine when passing through the spiral air duct, and the pollutants in the mist mixture and water droplets flow along the wall to the bottom of the wind tube, and the clean air of the mist mixture forms a rotating air flow at the air inlet.

[0009] In some optional embodiments, the direction of the rotating air flow is the same as the rotating direction of the fan wheel, so as to help the fan wheel rotate.

[0010] In some optional embodiments, the turbine comprises blades and a connecting shaft. The blades are arranged in the shape of a spiral curved surface. The connecting shaft is provided in the wind tube in such a manner that the connecting shaft is located on the central axis of the wind tube, and a plurality of blades are uniformly distributed on the outer surface of the connecting shaft.

[0011] In some optional embodiments, the installation angle between two adjacent blades ranges from 30° to 60°.

[0012] In some optional embodiments, the axial projection of each blade constitutes a circle with a diameter equal to the inner diameter of the wind tube.

[0013] In some optional embodiments, the wind tube further comprises a drainage opening, which is arranged at the bottom of the wind tube and is used to drain the sewage generated in the spiral air duct.

[0014] In some optional embodiments, the humidifying mechanism further comprises a water mist sprayer comprising a mist outlet communicated with the air duct inlet, the water mist sprayer being configured to humidify the air flow entering the spiral air duct, the water mist being discharged from the mist outlet and mixed with the air to form the mist-air mixture, and the mist-air mixture flowing into the spiral air duct.

[0015] In some optional embodiments, the water mist sprayer comprises a shell assembly, an ultrasonic atomization sheet and an electrode assembly. The shell assembly comprises a front shell, a middle shell and a rear shell connected in sequence along a fluid flow direction, the front shell, the middle shell and the rear shell jointly defining a fluid channel in an axial direction, a port on a side of the front shell serving as a water inlet, a port on a side of the rear shell serving as a mist outlet, the water inlet and the mist outlet being communicated with the fluid channel so that the fluid enters the water inlet, flows through the fluid channel and is discharged from the mist outlet; the ultrasonic atomization sheet is arranged in the fluid channel between the front shell and the middle shell and configured to atomize the fluid entering the fluid channel to form the water mist; and the electrode assembly is arranged in the fluid channel between the middle shell and the rear shell and configured to charge the water mist passing through the fluid channel to form the charged water mist.

[0016] In some optional embodiments, the electrode assembly comprises a first electrode and a second electrode. The first electrode is annular, configured to allow the water mist to pass through a region surrounded by the first electrode and to charge the water mist with a first amount of electric charge; the second electrode is annular, has a diameter greater than that of the first electrode and is arranged adjacent to the first electrode in the fluid flow direction, configured to allow the water mist to pass through a region surrounded by the second electrode and to charge the water mist with a second amount of electric charge; and the first amount of electric charge is greater than the second amount of electric charge.

[0017] In some optional embodiments, the humidifying mechanism further comprises a water box having a water supply end communicated with the water inlet of the water mist sprayer, the water box being configured to supply water to the water mist sprayer.

[0018] The water mist washing device provided by the embodiments of the present disclosure can achieve the following technical effects:

[0019] The water mist washing device comprises a housing, a fan, an air duct, a humidifying mechanism and a turbine. The fan comprises a volute and a fan wheel, the volute comprising an air inlet, and the fan wheel being located in the volute; the air duct is cylindrical, comprising an air duct inlet and an air duct outlet, the air duct outlet being communicated with the air inlet; the turbine is arranged in the air duct, and the turbine is spiral-shaped, dividing the internal space of the air duct and forming a spiral air duct, so that the mist-air mixture collides with the inner wall of the turbine when passing through the spiral air duct and condenses, and the pollutants in the mist-air mixture and the water droplets flow along the wall to the bottom of the air duct, and the clean air of the mist-air mixture forms a rotating air flow in the air inlet. The pollutants in the mist-air mixture are condensed and cleaned by the spiral air duct, so that the clean air enters the fan, which not only purifies the air, but also humidifies the air.

[0020] The foregoing general description and the following description are only exemplary and explanatory, and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] One or more embodiments are illustrated by way of example in the figures that are not intended to be limiting of the present embodiments. Like numbers refer to like elements throughout the drawings, which are not necessarily to scale, and in which:

[0022] Figure 1 is a partial exploded structural schematic view of a water mist washing device provided by an embodiment of the present disclosure;

[0023] Figure 2 is a partial structural schematic view of a water mist washing device provided by an embodiment of the present disclosure;

[0024] Figure 3 is a whole structural schematic view of a turbine provided by an embodiment of the present disclosure;

[0025] Figure 4 is a whole structural schematic view of a humidification mechanism provided by an embodiment of the present disclosure;

[0026] Figure 5 is a partial exploded structural schematic view of another water mist washing device provided by an embodiment of the present disclosure;

[0027] Figure 6 is a partial cross-sectional structural schematic view of another water mist washing device provided by an embodiment of the present disclosure.

[0028] Reference Signs:

[0029] 1: fan; 11: volute; 2: air duct; 21: air duct outlet; 22: air duct inlet; 3: humidification mechanism; 31: water mist nozzle; 32: water box; 4: turbine; 41: blade; 42: connecting shaft; 5: housing. DETAILED DESCRIPTION

[0030] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below with reference to the accompanying drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0031] The terms "first", "second", and the like in the description and claims of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0032] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0033] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0034] Unless otherwise specified, the term "a plurality of" means two or more.

[0035] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B means: A or B.

[0036] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0037] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0038] In combination Figures 1-6 As shown, the embodiments of the present disclosure provide a water washing fog device.

[0039] Traditional air purifiers are mostly filter screen interception devices, which use HEPA and activated carbon and other materials. Because the filter screen structure required to remove PM2.5 level fine suspended particulate matter is very fine, it is necessary to frequently replace and clean the filter screen, which is relatively cumbersome. In recent years, air purification devices using negative ions and plasma to disinfect and purify pollutants do have certain effect on sterilization and dust removal, but the ion body generated has a very short propagation distance and will be neutralized and annihilated near the air outlet of the device, and the purification effect is limited, and there is no humidification function.

[0040] The water mist washing device provided by the embodiments of the present disclosure comprises a shell 5, a fan 1, a wind pipe 2, a humidifying mechanism 3 and a turbine 4. The shell 5 is provided with a ventilation opening on an outer wall surface, the first end surface of the ventilation opening is fixedly provided with the fan 1, the fan 1 comprises a volute 11 and a wind wheel, the volute 11 comprises an air inlet part; the wind pipe 2 is located in the shell 5, the wind pipe 2 is in a cylindrical shape, the wind pipe 2 comprises a wind pipe inlet 22 and a wind pipe outlet 21, the wind pipe outlet 21 is fixed on the second end surface of the ventilation opening, so that the air inlet part of the volute 11 and the wind pipe outlet 21 are communicated through the ventilation opening; the humidifying mechanism 3 is located in the shell 5, the humidifying mechanism 3 is used for generating water mist, so that the water mist is mixed with air to become a mist mixture; the turbine 4 is arranged in the wind pipe 2, the turbine 4 is in a spiral shape, the turbine 4 divides the internal space of the wind pipe 2 and forms a spiral air duct, so that the mist mixture collides and condenses with the inner wall surface of the turbine 4 when passing through the spiral air duct, the pollutants in the mist mixture and water droplets flow along the wall surface to the bottom of the wind pipe 2, and the clean air of the mist mixture forms a rotating air flow at the air inlet part.

[0041] It can be understood that the water mist washing device can be applied to an air conditioner indoor unit, an air purifier, a dust remover and a humidifier. The present application takes the air conditioner indoor unit as an example for explanation and description. The air conditioner indoor unit comprises a water mist washing device, the water mist washing device comprises a shell 5, a fan 1 and a wind pipe 2, a humidifying mechanism 3 and a turbine 4 arranged in the shell 5. Among them, the shell 5 is provided with an air inlet grille and a ventilation interface. The wind pipe outlet 21 is connected with the air inlet part of the volute 11 through the ventilation interface. The humidifying mechanism 3 is fixed on the inner wall surface of the shell 5, close to one side of the air inlet grille. When the water mist washing device operates, the wind wheel rotates, air enters from the air inlet grille, the humidifying mechanism 3 generates water mist, the water mist in the shell 5 is mixed with air to form a mist mixture, the mist mixture enters the spiral air duct from the wind pipe inlet 22, the mist droplets in the mist mixture collide with each other in the spiral air duct and gradually become larger, and condense on the inner wall surface of the wind pipe 2, so that the pollutants and water droplets mixed in the air flow along the wall surface to the bottom of the wind pipe 2, and the clean air is blown out from the air outlet of the fan 1, achieving the effect of purification and humidification.

[0042] Optionally, the direction of the rotating air flow is the same as the rotating direction of the wind wheel, so as to help the wind wheel rotate. The air passing through the turbine 4 will form a rotating air flow at the air inlet part of the fan 1, the rotating direction of the rotating air flow is the same as that of the wind wheel in the fan 1, therefore, the rotating air flow has a certain boosting effect on the rotation of the fan 1, the resistance is smaller, and thus the air volume of the fan 1 is increased.

[0043] Optionally, the turbine 4 comprises blades 41 and a connecting shaft 42. The blades 41 are arranged in a spiral curve surface; the connecting shaft 42 is arranged in the wind cylinder 2 in a manner that the connecting shaft 42 is located on the central axis of the wind cylinder 2, and a plurality of blades 41 are uniformly distributed on the outer side of the connecting shaft 42. The ventilation opening of the shell 5 is provided with a multi-legged support, and the connecting shaft 42 is fixed on the multi-legged support. The blades 41 are uniformly distributed on the connecting shaft 42, so that the wind channel space in the wind cylinder 2 is evenly divided into a plurality of uniform spiral wind channel spaces, and the airflow distribution in each region of the spiral wind channel is more uniform, thereby reducing noise. The blades 41 arranged in a spiral curve surface increase the collision contact area of the mist mixture entering the wind cylinder 2 in the spiral wind channel, thereby improving the decontamination and purification capacity. Optionally, the connecting shaft 42 and the blades 41 are integrally manufactured, thereby avoiding the problem of airflow turbulence in the plurality of spiral wind channel spaces in the wind cylinder 2.

[0044] Optionally, the installation angle between the adjacent two blades 41 ranges from 30° to 60°. For example, the installation angle between the adjacent two blades 41 can be selected as 30°, 45° or 60°, etc. Preferably, the installation angle between the adjacent two blades 41 is 45°, so that the collision contact area of the mist and the spiral wind channel and the wind channel noise problem can be better balanced, the noise is controlled within the acceptable noise standard of the user, and a better air purification and humidification effect is obtained.

[0045] Optionally, the axial projection of each blade 41 constitutes [1 / 3, 1] of a circle, and the diameter of the circle is equal to the inner diameter of the wind cylinder 2. The axial projection of each blade 41 can be selected as a 120° sector, a 180° sector, a 240° sector, a 300° sector or a 360° sector, etc. Preferably, the axial projection of each blade 41 constitutes a 180° sector projection, so that the overall flow efficiency of the spiral wind channel is higher, and the wind pressure, flow and noise are all obviously improved.

[0046] Optionally, the wind cylinder 2 further comprises a drain opening which is arranged at the bottom of the wind cylinder 2 and is used for discharging sewage generated in the spiral wind channel. The condensed sewage in the wind cylinder 2 flows along the wall surface to the bottom of the wind cylinder 2 and is finally discharged through the drain opening. The drain opening can be connected to a condensate water drainage pipe of an air conditioner indoor unit, so as to directly discharge the sewage outside.

[0047] Optionally, the humidifying mechanism 3 further comprises a water mist sprayer 31 which comprises a mist outlet communicated with the wind cylinder inlet 22. The water mist sprayer 31 is used for humidifying the airflow entering the spiral wind channel. The water mist is discharged through the mist outlet, mixed with the air to become a mist-air mixture, and then flows to the spiral wind channel. The water mist sprayer 31 can humidify the indoor air to prevent the indoor air from being too dry and improve the user's comfort experience. The water mist sprayer 31 is located at the end far away from the wind cylinder inlet 22, so that the mist-air mixture is fully mixed in the shell 5 before entering the spiral wind channel. In this way, the adsorption effect of the water mist on the pollutants can be improved, and a better air purification effect can be obtained through the spiral wind channel.

[0048] Optionally, the water mist sprayer 31 comprises a shell assembly, an ultrasonic atomization sheet and an electrode assembly. The shell assembly comprises a front shell, a middle shell and a rear shell connected in sequence along the fluid flow direction, the front shell, the middle shell and the rear shell jointly build a fluid channel in the axial direction, the port on the side of the front shell serves as a water inlet, the port on the side of the rear shell serves as a mist outlet, the water inlet and the mist outlet are both in communication with the fluid channel, so that the fluid enters the fluid channel from the water inlet and flows out of the mist outlet after flowing through the fluid channel; the ultrasonic atomization sheet is arranged in the fluid channel between the front shell and the middle shell, and is used for atomizing the entering fluid to form water mist; the electrode assembly is arranged in the fluid channel between the middle shell and the rear shell, and is used for applying charge to the passing water mist to form charged water mist.

[0049] Specifically, the front shell, the middle shell and the rear shell are all provided with through holes in the fluid flow direction, i.e., the front shell, the middle shell and the rear shell are all annular pieces with through holes, and when the front shell, the middle shell and the rear shell are connected in sequence, the through hole on the front shell, the through hole on the middle shell and the through hole on the rear shell are in communication, jointly building the fluid channel. The fluid can be pure water, tap water, etc., and flavoring agents, fresheners, etc. can also be added to the fluid. It can be understood that the fluid is not limited to water.

[0050] The fluid enters the fluid channel of the shell assembly from the water inlet, is atomized to form water mist when passing through the ultrasonic atomization sheet, and is charged to form charged water mist when passing through the electrode assembly, and the charged water mist is sprayed out of the mist outlet, which can humidify indoor air and adsorb particulate matter and other pollutants in the air to purify the air.

[0051] The fluid flows and is processed in the water mist sprayer 31 as follows: first enter the fluid channel through the water inlet of the front shell, then form water mist through the atomization of the ultrasonic atomization sheet, then the water mist flows through the middle shell, then the water mist is charged through the electrode assembly to form charged water mist, and finally the charged water mist flows out of the mist outlet on the rear shell.

[0052] The shell assembly fixes the ultrasonic atomization sheet and the electrode assembly in the space of fluid flow by the arrangement of the front shell, the middle shell and the rear shell, and the ultrasonic atomization sheet and the electrode assembly are arranged in sequence along the direction of fluid flow, so as to realize the process of atomizing first and charging later for water flow to finally form charged water mist.

[0053] The ultrasonic atomization sheet has positive and negative terminals, and after the ultrasonic atomization sheet is connected to the circuit through the positive and negative terminals, it can utilize electronic high-frequency oscillation (oscillation frequency is 1.7MHz or 2.4MHz, which is beyond the range of human hearing, and the electronic oscillation is harmless to human body and animals), and through the high-frequency resonance of the ceramic atomization sheet, the liquid water molecule structure is dispersed to produce natural and elegant water mist.

[0054] The electrode assembly can generate an electric field, and the water mist can carry an electric charge when passing through the electrode assembly. After being charged, the water mist can have an adsorption effect on suspended particulate matters in the air, such as PM2.5, pollen, dust, lint and other particulate matters, thereby achieving the air purification effect. In addition, by adjusting the amount of spraying, the radius of the electrode assembly and the voltage applied to the electrode assembly, the mist droplets can be further ionized to form hydrogen ions and hydroxyl radical plasma, which can kill viruses and bacteria in the air. In addition, since formaldehyde is soluble in water, the air entering the humidifying device is humidified by atomization, which can increase the contact area between formaldehyde and water. Since formaldehyde is soluble in water, it also has a certain effect on removing formaldehyde in the air.

[0055] Optionally, the electrode assembly is connected to a negative high-voltage power supply. In this way, the electrode assembly can form a strong electric field. The ultrasonic atomization sheet is connected to a grounding wire, specifically, the grounding wire is connected to the negative terminal post of the ultrasonic atomization sheet. Based on the same repulsion effect, the negative charges in the mist droplets are repelled when the micron-level water mist generated by the ultrasonic atomization sheet passes through the electric field generated by the electrode assembly. Since the water mist is dispersed in the fluid channel between the electrode assembly and the ultrasonic atomization sheet, the negative charges are lost along the grounding wire through the conduction of the water mist, and the positive charges are retained, so that the airflow sprayed by the water mist nozzle 31 carries positive charges.

[0056] Optionally, the electrode assembly includes a first electrode and a second electrode. The first electrode is annular to allow the water mist to pass through the area surrounded thereby and to apply a first amount of electric charges to the water mist; the second electrode is annular and has a diameter greater than that of the first electrode, and is arranged adjacent to the first electrode in the fluid flow direction to allow the water mist to pass through the area surrounded thereby and to apply a second amount of electric charges to the water mist; and the first amount of electric charges is greater than the second amount of electric charges.

[0057] When the water mist passes through the first electrode or the second electrode, it can be affected by the electric field. As known, the smaller the radius of the electrode, the stronger the electric field generated. Since the diameter of the second electrode is greater than that of the first electrode, the electric field strength generated by the first electrode is greater than that generated by the second electrode. Therefore, the amount of electric charges applied to the water mist when passing through the first electrode is greater than that applied to the water mist when passing through the second electrode. In this way, by controlling the first electrode and the second electrode to switch on and off, the amount of electric charges applied to the water mist by the electrodes can be adjusted. When the amount of electric charges carried by the water mist is different, the air purification effect is also different.

[0058] When the radius of the first electrode is small or the voltage applied is high, the first electrode generates a stronger electric field, and the stronger electric field ionizes the water mist to generate hydrogen ions, hydroxyl radicals or active oxygen ions, and the hydroxyl radicals and active oxygen ions have strong oxidation effect and can destroy the cell membrane on the surface of bacteria, thereby achieving the effect of sterilization; when the radius of the second electrode is large or the voltage applied is low, the second electrode generates a weak electric field, and the weak electric field does not ionize the water mist, and the whole water mist is not charged, but the weak electric field can make the charges on the surface of the water mist gather, thereby being able to adsorb dust. It can be understood that in some cases, when the electric field generated by the second electrode is enhanced to a certain extent, the water molecules in the water mist will be ionized.

[0059] Optionally, the water mist nozzle 31 further comprises a controller, the controller is electrically connected with the first electrode and the second electrode, and is used for controlling the first electrode and the second electrode to switch on and off electricity, so as to control the first electrode or the second electrode to apply electric charges to the water mist, so as to form the charged water mist with different charge amounts.

[0060] By setting the controller, the controller controls the first electrode and the second electrode to switch on and off electricity, so as to control the amount of electric charges applied to the water mist, thereby affecting the purification effect of the water mist on the air. For example, the controller controls the first electrode to be connected with electricity and the second electrode to be disconnected with electricity, so as to apply a larger amount of electric charges to the water mist. Specifically, the first electrode is controlled to be connected with electricity, and since the radius of the first electrode is small, the first electrode generates a stronger electric field. After the water mist passes through the first electrode, the water mist is ionized to generate hydrogen ions, hydroxyl radicals or active oxygen ions, and the hydroxyl radicals and active oxygen ions have strong oxidation effect and can destroy the cell membrane on the surface of bacteria, thereby achieving the effect of sterilization. The controller controls the second electrode to be connected with electricity and the first electrode to be disconnected with electricity, so as to apply a smaller amount of electric charges to the water mist. Specifically, the second electrode is controlled to be connected with electricity, and since the radius of the second electrode is large, the second electrode generates a weak electric field. The weak electric field does not ionize the water mist, and the whole water mist is not charged, but the weak electric field can make the charges on the surface of the water mist gather, thereby being able to adsorb dust. The amount of electric charges carried by the water mist is different, and the adsorption strength of the water mist on the particulate matters in the air is also different, thereby the purification effect of the water mist on the air is different.

[0061] Optionally, the electrode assembly is a single electrode, and by changing the voltage applied to the single electrode, the purification effect of the water mist nozzle 31 can be changed. Specifically, when the single electrode is connected with relatively high negative high voltage, the single electrode will generate a stronger electric field intensity. After the water mist passes through the single electrode, the water mist is ionized to generate hydrogen ions, hydroxyl radicals or active oxygen ions, and the hydroxyl radicals and active oxygen ions have strong oxidation effect and can destroy the cell membrane on the surface of bacteria, thereby achieving the effect of sterilization. When the single electrode is connected with relatively low negative high voltage, the single electrode generates a weak electric field, and the water mist does not ionize, but the charges on the surface of the water mist gather, thereby having adsorption effect and being able to adsorb dust, cotton wool and other small impurities.

[0062] Optionally, the controller is electrically connected with the ultrasonic atomization piece, and is further configured to control the ultrasonic atomization piece to work so as to atomize the fluid to form a preset atomization amount. The atomization amount of the ultrasonic atomization piece can be adjusted on the basis of adjusting the amount of electric charges carried by the water mist. The atomization amount will affect the ionization of the water mist by the electric field. Specifically, when the atomization amount is small, the smaller the radius of the annular electrode, the stronger the electric field generated by the annular electrode. When the water mist with a small atomization amount passes through the annular electrode, the fine water mist is decomposed into hydroxyl radicals and other negative oxygen ions under the action of the strong electric field, so that the sterilization effect can be enhanced. When the atomization amount is large, the radius of the annular electrode is large, and the electric field generated by the annular electrode is weak. When a large amount of water mist passes through the annular electrode, the water mist droplets cannot be decomposed, and the weak electric field can only cause the electric charges on the surface of the water mist droplets to gather. At this time, the water mist droplets have a good effect of adsorbing particulate matters such as dust, and the atomization amount is large, that is, the humidification amount is large, and the humidification effect is good. Therefore, the water mist nozzle 31 can adjust the atomization amount or switch the electrode according to the actual use scene, so as to meet the needs of people.

[0063] Optionally, the ultrasonic atomization piece is circular, and the central axis of the ultrasonic atomization piece coincides with the central axis of the annular electrode assembly. In this way, the water mist generated by the ultrasonic atomization piece can pass through the central area of the electrode assembly better. The central axis of the ultrasonic atomization piece coincides with the central axis of the annular electrode assembly, so that the center of gravity of the ultrasonic atomization piece and the center of gravity of the annular electrode assembly are on the same horizontal line, so that the center of gravity of the whole is more stable.

[0064] Optionally, the humidification mechanism 3 further comprises a water box 32, a water supply end of the water box 32 being in communication with the water inlet of the water mist nozzle 31, and the water box 32 being configured to provide a water source for the water mist nozzle 31. It can be understood that the water source can be pure water, tap water, etc., and can also add flavoring agents, fresheners, etc.

[0065] The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural and other changes. The embodiments represent only the possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be changed. Parts and features of some embodiments can be included or replaced by parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A water mist washing device, characterized in that The water mist washing device comprises: a shell, an outer wall surface of which is provided with a ventilation opening, a first end surface of the ventilation opening being fixedly provided with a fan, the fan comprising a volute and a wind wheel, the volute comprising an air inlet portion; a wind tube located in the shell, the wind tube being in a cylindrical shape, the wind tube comprising a wind tube inlet and a wind tube outlet, the wind tube outlet being fixedly arranged at a second end surface of the ventilation opening, so that the air inlet portion of the volute and the wind tube outlet are communicated through the ventilation opening; a humidifying mechanism located in the shell, the humidifying mechanism being used to generate water mist, so that the water mist is mixed with air in the shell to form a mist-air mixture; and a turbine arranged in the wind tube, the turbine being in a spiral shape, the turbine separating the internal space of the wind tube and forming a spiral air duct, so that the mist-air mixture collides with the inner wall surface of the turbine and condenses when passing through the spiral air duct, and the pollutants in the mist-air mixture and water droplets flow along the wall surface to the bottom of the wind tube, and the clean air of the mist-air mixture forms a rotating air flow at the air inlet portion. The humidifying mechanism comprises a water mist sprayer, the water mist sprayer comprising a shell assembly, an ultrasonic atomizing sheet and an electrode assembly, the electrode assembly comprising: a first electrode in a ring shape, so that the water mist passes through the area surrounded by the first electrode and is charged with a first amount of electric charge; and a second electrode in a ring shape, the diameter of the second electrode being greater than that of the first electrode, the second electrode being arranged adjacent to the first electrode in the direction of fluid flow, so that the water mist passes through the area surrounded by the second electrode and is charged with a second amount of electric charge; and the first amount of electric charge is greater than the second amount of electric charge.

2. The water mist washing device according to claim 1, wherein the direction of the rotating air flow is the same as the rotating direction of the wind wheel, so as to help the wind wheel rotate.

3. The water mist washing apparatus according to claim 1, wherein The turbine comprises: a blade arranged in a spiral curved surface; and a shaft, a plurality of blades being uniformly distributed on the outer side surface of the shaft in a circumferential direction, the shaft being arranged in the wind tube in such a manner that the shaft is located on the central axis of the wind tube.

4. The water mist washing device according to claim 3, wherein the installation angle between two adjacent blades ranges from 30° to 60°.

5. The water mist washing device according to claim 3, wherein the axial projection of each blade constitutes a circle with a diameter equal to the inner diameter of the wind tube.

6. The water mist washing apparatus according to claim 1, wherein The wind tube further comprises: a drain opening arranged at the bottom of the wind tube, the drain opening being used to drain sewage generated in the spiral air duct.

7. The water mist washing device according to any one of claims 1 to 6, wherein the water mist sprayer comprises a mist outlet communicated with the wind tube inlet, the water mist sprayer being used to humidify the air flow entering the spiral air duct, the water mist being discharged through the mist outlet and mixed with air to form the mist-air mixture, and then flowing to the spiral air duct.

8. The water mist washing device according to claim 7, wherein The shell assembly comprises a front shell, a middle shell and a rear shell connected in sequence along the fluid flow direction, the front shell, the middle shell and the rear shell jointly form a fluid channel in the axial direction, the port on the side of the front shell serves as a water inlet, the port on the side of the rear shell serves as a mist outlet, the water inlet and the mist outlet are both communicated with the fluid channel, so that the fluid enters the water inlet, flows through the fluid channel and then flows out of the mist outlet; The ultrasonic atomization piece is arranged in the fluid channel between the front shell and the middle shell, and is used for atomizing the entering fluid to form water mist; And, The electrode assembly is arranged in the fluid channel between the middle shell and the rear shell, and is used for charging the passing water mist to form charged water mist.

9. The water mist washing apparatus according to claim 7, wherein The humidifying mechanism further comprises: A water box, the water supply end of which is communicated with the water inlet of the water mist sprayer, the water box is used for providing water source for the water mist sprayer.

Images