Active oxygen aerosol generating device and method of manufacture

Abstract

The application discloses an active oxygen aerosol generating device and a preparation method thereof. The active oxygen aerosol generating device comprises a water tank, the water tank is suitable for containing water and forming an air chamber above the water surface, an air inlet and an air outlet are arranged on the wall of the water tank, and the air inlet and the air outlet are both communicated with the air chamber; a discharge device is arranged on the wall of the water tank and comprises a discharge needle and a needle sleeve sleeved outside the discharge needle, the discharge end of the discharge needle is hidden in the needle sleeve, the discharge end of the discharge needle is exposed to the air in the air chamber, the discharge needle is suitable for discharging the water vapor in the air chamber to generate negative oxygen ions in the air chamber; and an atomizer is suitable for being immersed in the water in the water tank, the atomizer is suitable for atomizing the water in the water tank into water mist floating in the air chamber to mix with the air containing the negative oxygen ions to form the active oxygen aerosol, and the active oxygen aerosol is suitable for being released from the open air outlet to the outside of the water tank along an air duct. The active oxygen aerosol is released outward along the air outlet and the air duct, can exist in a target area for a long time, and improves the disinfection and sterilization effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aerosol technology, in particular to an active oxygen aerosol generating device and preparation method. BACKGROUND

[0002] In the prior art, the generated negative oxygen ions are directly released into the air for disinfection and sterilization. However, these negative oxygen ions flow everywhere in the open space, so they cannot stay on the surface of the disinfected object for a long time to achieve the desired sterilization effect. Moreover, the negative oxygen ions flow everywhere in the open space, which will directly react with suspended matter, bacteria and odors in the air, causing them to be broken down and destroyed, making it difficult to achieve good sterilization effect in the specific area where sterilization is required.

[0003] In view of the above shortcomings, it is necessary to design an active oxygen aerosol generating device and preparation method. SUMMARY

[0004] Therefore, the technical problem to be solved by the present application is to overcome the defect that the negative oxygen ions generated in the prior art are directly released into the air for disinfection and sterilization, resulting in poor disinfection and sterilization effect, thereby providing an active oxygen aerosol generating device and preparation method.

[0005] To solve the above technical problems, the technical solution of the present application is as follows:

[0006] An active oxygen aerosol generating device, comprising:

[0007] A water tank adapted to contain water and form an air chamber above the water surface, the water tank wall is provided with an air inlet and an air outlet, the air inlet and the air outlet are both connected to the air chamber;

[0008] A discharge device mounted on the wall of the water tank, comprising a discharge needle extending into the air chamber and a needle sleeve sleeved outside the discharge needle, the discharge end of the discharge needle is hidden in the needle sleeve and exposed to the air in the air chamber, the discharge needle is adapted to discharge the water in the needle sleeve to generate negative oxygen ions in the air chamber;

[0009] An atomizer adapted to be immersed in the water in the water tank, the atomizer is adapted to atomize the water in the water tank into water mist floating in the air chamber to mix with the air containing negative oxygen ions to form active oxygen aerosol, the active oxygen aerosol is adapted to be released from the open air outlet along the air duct to the outside of the water tank.

[0010] Further, the mist outlet of the atomizer is located 2-3 cm below the water surface.

[0011] Further, the discharge needle forms an angle of not less than 45 degrees with the horizontal direction.

[0012] Further, the root of the discharge needle is provided with a gas supplementing port.

[0013] Further, the discharge needle is a capillary tube and the surface is in a hollowed-out shape.

[0014] Further, the needle sleeve is made of a porous material, is adapted to absorb moisture in the air, and is in contact with the discharge needle.

[0015] Further, the atomizer is an ultrasonic atomizer.

[0016] The technical scheme of the present application has the following advantages:

[0017] 1. The active oxygen aerosol generating device provided by the present application can atomize the water in the water tank to form water mist, the discharge needle can generate negative oxygen ions by discharging the water in the needle sleeve, and the negative oxygen ions are released into the air in the air chamber, the water mist and the air containing the negative oxygen ions are mixed to form active oxygen aerosol, the active oxygen aerosol is released outward along the air duct through the open air outlet, and reaches the target area, the active oxygen aerosol can exist in the target area for a long time, thereby prolonging the disinfection and sterilization time and improving the disinfection and sterilization effect. In addition, the discharge end of the discharge needle is hidden in the needle sleeve, which can reduce the amount of ozone generated, so that the active oxygen aerosol can be used for disinfection and sterilization in the area where people are active, without waiting for people to leave before disinfection and sterilization.

[0018] 2. The active oxygen aerosol generating device provided by the present application, the discharge needle of the discharge device is a capillary tube and the surface is in a hollowed-out shape, so that the setting angle of the discharge needle is not limited to being vertically downward, thereby improving the adaptability of the setting angle of the discharge needle, and in addition, the needle sleeve is made of a porous material, which can continuously adsorb moisture in the air and store it in the needle sleeve, thereby ensuring the stability of the water source required by the discharge device and improving the convenience of obtaining the water source.

[0019] 3. The active oxygen aerosol generating device provided by the present application, the mist outlet of the atomizer is located 2-3 cm below the water surface, which has better atomization effect.

[0020] A preparation method of active oxygen aerosol, which is prepared by using the active oxygen aerosol generating device described above, comprising the following steps:

[0021] S1, water is added to the water tank, the water surface is higher than the mist outlet of the atomizer and lower than the needle sleeve of the discharge device;

[0022] S2, the air outlet is closed, the discharge device is powered on and the atomizer is started for 5-15 minutes, the discharge end of the discharge needle discharges the water to generate negative oxygen ions which are released into the air chamber, the atomizer atomizes the water in the water tank into water mist to mix with the air containing the negative oxygen ions to form active oxygen aerosol;

[0023] S3, opening the outlet, the active oxygen aerosol being released along the air duct outside through the opened outlet.

[0024] Further, in the step of S3, after opening the outlet, when the concentration of the active oxygen aerosol in the air chamber is lower than a first preset concentration value, the outlet is closed, and when the concentration of the active oxygen aerosol in the air chamber reaches a second preset concentration value, the outlet is opened again; wherein the second preset concentration value is greater than the first preset concentration value.

[0025] Further, the method further comprises a step S4, when the water surface in the water tank reaches a preset water surface line, the atomizer is closed and the power supply of the discharge device is disconnected.

[0026] 1. The method for preparing the active oxygen aerosol provided by the application, the prepared active oxygen aerosol is released along the air duct outside from the opened outlet, the active oxygen aerosol can exist in the target area for a long time, and thus the sterilization time can be prolonged and the sterilization effect can be improved.

[0027] 2. The method for preparing the active oxygen aerosol provided by the application, after opening the outlet, when the concentration of the active oxygen aerosol in the air chamber is lower than a first preset concentration value, the outlet is closed, and when the concentration of the active oxygen aerosol in the air chamber reaches a second preset concentration value, the outlet is opened again; wherein the second preset concentration value is greater than the first preset concentration value, so that the concentration of the active oxygen aerosol can be ensured and the sterilization effect can be ensured.

[0028] 3. The method for preparing the active oxygen aerosol provided by the application, when the water surface in the water tank reaches a preset water surface line, the atomizer is closed and the power supply of the discharge device is disconnected, and thus the safety in use can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 It is a perspective view of the active oxygen aerosol generating device of the application;

[0031] Figure 2 It is a perspective view of the water tank upper cover provided with the discharge device in the application;

[0032] Figure 3 It is a perspective view of the outlet cover in the application;

[0033] Figure 4 It is a perspective schematic view of the air inlet in the application;

[0034] Figure 5 It is a perspective schematic view of the discharge device in the application;

[0035] Figure 6 It is a perspective schematic view of the needle sleeve in the application;

[0036] Figure 7 It is a perspective schematic view of the discharge needle in the application.

[0037] Explanation of reference signs:

[0038] A, water tank; B, discharge device; C, atomizer; 1, metal sheet; 2, discharge needle; 21, through hole; 22, air supplement hole; 23, root; 24, discharge end; 3, needle sleeve; 4, upper cover; 41, air inlet; 43, cover; 44, air chamber. DETAILED DESCRIPTION

[0039] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] Example 1

[0044] like Figures 1 to 7 As shown, this embodiment provides a device for generating active oxygen aerosol, including a water tank A, a discharge device B and an atomizer C.

[0045] Water tank A is suitable for holding water and forming an air chamber 44 above the water surface. An air inlet 41 and an air outlet (not shown) are provided on the wall of water tank A. Both the air inlet 41 and the air outlet communicate with the air chamber 44, and the total cross-sectional area of ​​the air outlet is larger than that of the air inlet 41. The air inlet 41 provides a passage for outside air to enter the air chamber 44, while the air outlet provides a passage for the reactive oxygen aerosol within the air chamber 44 to be released from the water tank A. In this embodiment, water tank A is provided with an upper cover 4, on which both the air inlet 41 and the air outlet are provided. The air outlet upper cover is provided with a lid 43, which is normally closed. However, it can also be set to a normally open state, so that the lid 43 is closed when preparing the reactive oxygen aerosol. The air inlet 41 is a Venturi-shaped air inlet 41 and is normally open. An air supply device (not shown) replenishes air into the air chamber 44 through the air inlet 41 along the air inlet duct. When the cover 43 on the air outlet is in a closed state, the air chamber 44 can only communicate with the outside through the air inlet 41, and air can only enter the air chamber 44 from the air inlet 41, and cannot flow out from the air chamber 44 through the air inlet 41, thereby preventing leakage of active oxygen aerosol.

[0046] Discharge device B is mounted on the wall of water tank A. It comprises a metal sheet 1, a discharge needle 2, and a needle sleeve 3. The discharge needle 2 extends into the air chamber 44, and the needle sleeve 3 fits over the discharge needle 2. The discharge end 24 of the discharge needle 2 is recessed within the needle sleeve 3 and exposed to the air within the air chamber 44. When power is applied to discharge device B, the discharge needle 2 discharges water that reaches the discharge end 24 of the discharge needle 2, generating negative oxygen ions that are released into the air chamber 44.

[0047] The metal sheet 1 is in the shape of an elongated strip and is suitable for connecting to a high-voltage power supply. Different numbers of discharge needles 2 can be connected to the metal sheet 1 as required.

[0048] The discharge needle 2 is made of conductive material, of course, can also be made of non-conductive material but coated with a conductive coating on the outer surface or inner and outer surfaces. In this embodiment, the discharge needle 2 is hollow, a capillary tube, and the surface has a plurality of through holes 21 so that the surface of the discharge needle 2 is hollow. One end of the discharge needle 2 is connected to the metal sheet 1, and the end away from the metal sheet 1 is the discharge end 24. In addition, the part of the discharge needle 2 near the metal sheet 1 and exposed to the needle sleeve 3 is provided with a gas supplement hole 22, which is suitable for supplementing air into the discharge needle 2 through the gas supplement hole 22, so that air circulation is formed in the hollow discharge needle 2. The shape of the gas supplement hole 22 can be different from that of the through hole 21, or the same as that of the through hole 21.

[0049] The needle sleeve 3 is made of porous material, which continuously absorbs moisture in the air in the air chamber 44 by the porous property and stores the moisture in the needle sleeve 3. The porous material of the needle sleeve 3 can be added with a hydrophilic material to increase the hydrophilic performance of the needle sleeve 3 and improve the ability of the needle sleeve 3 to absorb moisture in the air. Of course, a hydrophilic coating can also be directly coated on the surface of the needle sleeve 3. The needle sleeve 3 is sleeved outside the discharge needle 2, and the inner wall of the needle sleeve 3 is in contact with the outer wall of the discharge needle 2. The moisture absorbed by the needle sleeve 3 enters the inner wall of the discharge needle 2 through the through hole 21 and flows towards the discharge end 24 under the capillary siphon effect.

[0050] In this embodiment, since the discharge end 24 of the discharge needle 2 is hidden in the needle sleeve 3, but there is no barrier between the discharge end 24 and the air, the discharge device B is powered on and held at high voltage. In this case, since the air (oxygen-containing air) directly contacted with the discharge end 24 is reduced, the ozone production capacity is greatly reduced, and even almost no ozone is produced, but active particles such as hydroxyl radicals and negative oxygen ions are still produced.

[0051] In this embodiment, the working process of the discharge device is as follows:

[0052] The needle sleeve 3 continuously absorbs the moisture in the air chamber 44 and stores it in the needle sleeve 3;

[0053] The water in the needle sleeve 3 enters the inner wall of the discharge needle 2 through the through hole 21 on the discharge needle 2 to form a water film, and flows towards the discharge end 24 under the capillary siphon effect;

[0054] High voltage electricity is loaded on the discharge needle 2 through the metal sheet 1, the discharge end 24 of the discharge needle 2 generates a potential difference with the air, the air particles at the discharge end 24 are affected by the high voltage electric field, forcing the air particles to be robbed or given the same kind of electric charge, according to the principle of same kind repelling, the air particles with the same kind of electric charge quickly leave the discharge end 24 of the discharge needle 2 and form an ion wind, the so-called robbed refers to holding a positive high voltage, a large number of free electrons in the air particles are robbed into the power supply to form a large number of positively charged air ions; the so-called given refers to holding a negative high voltage, the air particles combine with the free electrons provided by the power supply to form a large number of negatively charged air ions. In this embodiment, since the discharge needle 2 is a capillary tube, the discharge needle 2 can make the air particles move in a higher space electric field density environment for a longer time when working, so as to better energize the air particles passing through the capillary tube and more easily produce charged air particles. The so-called energization refers to that the uncharged air particles enter the capillary tube, and the uncharged air particles increase the overall kinetic energy and the movement speed during the movement in the capillary tube due to the action of the electric field, especially the movement speed of the extranuclear electrons increases. Such high-energy state air particles are more likely to lose free electrons, and at the same time, can also capture free electrons to reduce the out-of-control state of the air particles.

[0055] The flow direction of the ion wind makes the air in the discharge needle 2 form a supplement from the root 23 of the discharge needle 2 to the discharge end 24 of the discharge needle 2, the water film on the inner wall of the discharge needle 2 moves towards the discharge end 24, and the water film torn by the air pressure generated by the ion wind when moving to the discharge end 24 produces water particles with extremely small particle size. The water particles with extremely small particle size are activated by high voltage electricity, and part of the water particles are ionized or injected with additional free electrons to produce active particles such as negative oxygen ions and hydroxyl radicals. Of course, in this process, air needs to be supplemented to the discharge needle 2 through the air supplement hole 22 on the capillary tube outside the needle sleeve 3 to form air circulation to continuously supplement air.

[0056] The discharge device B provided in this embodiment absorbs the moisture in the air by the needle sleeve 3 made of porous material, stores the moisture in the needle sleeve 3, ensures the water source required for high voltage ionization of water, improves the convenience of obtaining the water source, and further ensures the yield of active particles such as hydroxyl radicals, and the number of negative oxygen ions generated is more than that of the negative oxygen ions generated by coating the porous water-absorbing material on the outer surface of the solid discharge needle 2. This is because compared with the solid needle, a layer of water film is added in the capillary tube, and the number of water ions generated by the water film is not provided by the solid needle. In addition, since the discharge needle 2 is a capillary tube, water flows in the capillary tube by siphon action, so the placement position of the capillary tube type discharge needle 2 is no longer limited to the vertical downward placement of the discharge end 24, and the placement angle adaptability of the capillary tube type discharge needle 2 can be improved. The included angle of the capillary tube type discharge needle 2 relative to the horizontal direction is not less than 45 degrees.

[0057] The atomizer C is immersed in the water in the water tank A, and is adapted to atomize the water in the water tank A into water mist floating in the air chamber 44 to mix with the air containing negative oxygen ions to form active oxygen aerosol, which is adapted to be released from the open air outlet (not labeled) along the air duct to the outside of the water tank A. In this embodiment, the atomizer C is an ultrasonic atomizer, and the mist outlet of the atomizer C is located 2-3 cm below the water surface to achieve better atomization effect. Preferably, a float is added to the other end of the air inlet 41 of the atomizer C, which can control the atomizer C to be always at the liquid level depth with the best atomization effect, and can also be used as a float to mark the water level and the lower limit of the water level, and to define the working water level interval of the atomizer C to ensure safety.

[0058] It is further explained that in this embodiment, the air supplementing device supplements air into the air chamber 44 along the air inlet 41, forcing the active oxygen aerosol in the air chamber 44 to be released outward along the air outlet along the air duct, so that the water tank A does not need to be provided with a gas power device.

[0059] In this embodiment, the atomizer C can atomize the water in the water tank A into water mist, the negative oxygen ions generated by the discharge of the water reaching the discharge end 24 of the discharge needle 2 of the discharge device B are released into the air in the air chamber 44, the water mist mixes with the air containing negative oxygen ions to form active oxygen aerosol, and the active oxygen aerosol is released outward along the air duct through the open air outlet to reach the target area. The active oxygen aerosol can exist in the target area for a long time, thereby prolonging the disinfection and sterilization time and improving the disinfection and sterilization effect.

[0060] Embodiment 2

[0061] This embodiment provides a preparation method of active oxygen aerosol, which is prepared by using the active oxygen aerosol generating device described above, and comprises the following steps:

[0062] S1, water is added to the water tank A, and the water surface is higher than the mist outlet of the atomizer C and lower than the needle sleeve 3 of the discharge device B;

[0063] S2, the air outlet is closed, the discharge device B is powered on, and the atomizer C is started for 5-15 minutes, preferably 10 minutes, the discharge end 24 of the discharge needle 2 discharges the water moving to the discharge end 24 to generate negative oxygen ions, which are released in the air chamber 44, the atomizer C atomizes the water in the water tank A into water mist to mix with the air containing negative oxygen ions to form active oxygen aerosol; the concentration of the active oxygen aerosol can be adjusted by adjusting the power-on time of the discharge device B to adapt to different disinfection and sterilization occasions;

[0064] S3, opening the outlet, the active oxygen aerosol is released along the air duct to the outside through the open outlet. Preferably, during the sterilization process, the concentration of the active oxygen aerosol is detected, when the concentration of the active oxygen aerosol in the air chamber 44 is lower than the first preset concentration value, the outlet is closed for a certain period of time, when the concentration of the active oxygen aerosol in the air chamber 44 reaches the second preset concentration value, the outlet is opened again; wherein the second preset concentration value is greater than the first preset concentration value;

[0065] S4, closing the atomizer C and disconnecting the power supply of the power device B. There are two cases for closing the atomizer C and disconnecting the power supply of the power device B, one case is that disinfection and sterilization is not needed, the other case is that the water level in the water tank A drops below the preset water level line, and water needs to be added to the water tank A.

[0066] In the embodiment, the prepared active oxygen aerosol is released from the open outlet along the air duct to the target area, and the active oxygen aerosol can exist in the target area and target surface for a long time, thereby prolonging the sterilization time and improving the sterilization effect. In addition, the concentration of ozone in the active oxygen aerosol is low, so the active oxygen aerosol can be used for disinfection and sterilization in the area where people are active, without waiting for no one to disinfect and sterilize, thereby improving the use convenience.

[0067] Obviously, the above embodiments are only examples for clear illustration, and are not limitations to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments do not need to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. An active oxygen aerosol generating device, characterized by comprising: It comprises: a water tank (A) adapted to contain water and form an air chamber (44) above the water surface, the wall of the water tank (A) is provided with an air inlet (41) and an air outlet, both of which communicate with the air chamber (44); a discharge device (B) installed on the wall of the water tank (A), comprising a metal sheet (1) connected to a high-voltage power supply, a discharge needle (2) extending into the air chamber (44), and a needle sleeve (3) sleeved outside the discharge needle (2), the discharge needle (2) is a capillary tube with a hollow surface, one end of the discharge needle (2) is connected to the metal sheet (1), and the end away from the metal sheet (1) is a discharge end (24), the part of the discharge needle (2) near the metal sheet (1) and exposed to the needle sleeve (3) is provided with a gas supplement hole (22), the discharge end (24) of the discharge needle (2) is hidden in the needle sleeve (3), and the discharge end (24) of the discharge needle (2) is exposed to the air in the air chamber (44), the discharge needle (2) is adapted to discharge water in the needle sleeve (3) to generate negative oxygen ions in the air chamber (44), the needle sleeve (3) is made of porous material and is in contact with the discharge needle (2) to absorb moisture in the air; an atomizer (C) adapted to be immersed in water in the water tank (A), the atomizer (C) is adapted to atomize water in the water tank (A) into water mist floating in the air chamber (44) to mix with air containing negative oxygen ions to form active oxygen aerosol, the active oxygen aerosol is released outside the water tank (A) along the air duct through the open air outlet.

2. The active oxygen aerosol generating apparatus according to claim 1, wherein The mist outlet of the atomizer (C) is located 2-3 cm below the water surface.

3. The active oxygen aerosol generating apparatus according to claim 1, wherein The angle between the discharge needle (2) and the horizontal direction is not less than 45 degrees.

4. The active oxygen aerosol generating apparatus according to claim 1, wherein The atomizer (C) is an ultrasonic atomizer.

5. A method for preparing active oxygen aerosol, using the active oxygen aerosol generating device of any one of claims 1-4, comprising the following steps: S1, adding water to the water tank (A), the water surface is higher than the mist outlet of the atomizer (C) and lower than the needle sleeve (3) of the discharge device (B); S2, the air outlet is closed, the discharge device (B) is powered on and the atomizer (C) is started for 5-15 minutes, the discharge end (24) of the discharge needle (2) discharges negative oxygen ions into the air chamber (44), and the atomizer (C) atomizes water in the water tank (A) into water mist to mix with air containing negative oxygen ions to form active oxygen aerosol; S3, opening the air outlet, the active oxygen aerosol is released outside through the open air outlet.

6. The method of claim 5, wherein the active oxygen aerosol is prepared by, In the step S3, after opening the air outlet, when the concentration of active oxygen aerosol in the air chamber (44) is lower than a first preset concentration value, the air outlet is closed, and when the concentration of active oxygen aerosol in the air chamber (44) reaches a second preset concentration value, the air outlet is opened again; wherein the second preset concentration value is greater than the first preset concentration value.

7. The method of claim 5, wherein the active oxygen aerosol is prepared by, It also comprises a step S4 of switching off the atomizer (C) and disconnecting the power supply of the discharge device (B) when the water level in the tank (A) drops to reach a preset water level line.

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