A photo-magnetic oxidation disinfection and sterilization device and method

Abstract

The present invention discloses a photo-magnetic oxidation disinfection device and method, which includes an air inlet and an air outlet, and a magnetic oxygen chamber and a photo-magnetic catalytic chamber. The magnetic oxygen chamber and the photo-magnetic catalytic chamber are communicated, and the air inlet and the air outlet are respectively arranged on the magnetic oxygen chamber and the photo-magnetic catalytic chamber. The magnetic oxygen chamber enhances the negative ion concentration through a magnetic field, and combines ozone to perform primary disinfection on the air entering from the air inlet. The photo-magnetic catalytic chamber promotes the separation of hole electrons through a magnetic field, improves the photocatalytic efficiency, and performs secondary photocatalytic disinfection on the air entering from the magnetic oxygen chamber. The purpose is to introduce a magnetic field, so that the magnetic field and negative ions, and the magnetic field and photocatalysis act synergistically to perform secondary disinfection on the polluted air in the outside world, so as to achieve the up-to-standard discharge of air. The device of the present invention is small and can efficiently disinfect various bacteria in the air in all directions during the dynamic disinfection process, and achieve the purpose of coexistence of humans and machines.

Description

Technical Field

[0001] The present invention relates to the technical field of disinfection and sterilization, and in particular to a photomagnetic oxidation disinfection device and method. Background Art

[0002] At present, there are two types of disinfection: static disinfection and dynamic disinfection. Static disinfection uses methods such as spraying disinfectant or releasing ozone. This method is only applicable to disinfection in open places where no one is present. Dynamic disinfection uses air disinfection equipment to disinfect places where people are active, and at the same time, it is necessary to ensure that the disinfection process is harmless to the human body. The dynamic disinfection process is a human-machine coexistence process. Currently, commonly used technical means include fiber filter material filtration, static electricity, ultraviolet light, ultraviolet light catalysis and other methods. These single technical means have a slow rate of disinfection of pathogens, which restricts the need for rapid disinfection of pathogens in the environment. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a photomagnetic oxidation disinfection device and method, in which a magnetic field is introduced so that the magnetic field and negative ions, as well as the magnetic field and photocatalysis work synergistically to perform secondary disinfection on the external polluted air, thereby achieving standard air emissions. The device of the present invention is compact and can efficiently and comprehensively disinfect all kinds of bacteria in the air during the dynamic disinfection process, thereby achieving the purpose of human-machine coexistence.

[0004] To achieve the above-mentioned objectives, the present invention provides the following specific technical solutions: a photomagnetic oxidation disinfection device, comprising an air inlet and an air outlet, comprising a magnetic oxygen chamber and a photomagnetic catalytic chamber, the magnetic oxygen chamber and the photomagnetic catalytic chamber are connected, and the air inlet and the air outlet are respectively arranged on the magnetic oxygen chamber and the photomagnetic catalytic chamber; the magnetic oxygen chamber enhances the concentration of negative ions through a magnetic field, and performs a primary disinfection on the air entering the air inlet in combination with ozone; the photomagnetic catalytic chamber enhances the photocatalytic efficiency through a magnetic field, and performs a secondary photocatalytic disinfection on the air entering from the magnetic oxygen chamber.

[0005] Due to the above technical solution, air containing bacteria and viruses enters the magnetic oxygen chamber from the air inlet. Under the action of the magnetic field, the density of negative ions released by the negative ion generator increases, and high-concentration negative oxygen ions are generated in the air, which not only enhances the charge of particulate matter and improves the efficiency of removing fine dust, but also changes the direction of movement of negative oxygen ions during the release process due to the Lorentz force generated by the magnetic field, making the direction of movement of negative oxygen ions opposite to the direction of airflow, so that they stay in the chamber for a long time, increasing the disinfection time.

[0006] Preferably, a negative ion generator and a first magnetic pole are provided in the magnetic oxygen chamber, and the direction of the magnetic field generated by the first magnetic pole is perpendicular to the movement direction of the air entering from the air inlet; the magnetic field generated by the first magnetic pole makes the movement direction of the negative ions generated by the negative ion generator opposite to the movement direction of the incoming air.

[0007] Preferably, an ozone generator is disposed in the magneto-oxygen cavity. The directions of ozone and negative ions released by the ozone generator and the negative ion generator, the direction of the magnetic field generated by the first magnetic pole, and the moving direction of the air entering from the air inlet are perpendicular to each other; the magnetic induction intensity generated by the first magnetic pole is 0.2T to 0.35T.

[0008] Preferably, an ultraviolet lamp and a catalytic mesh are disposed in the photo-magneto-catalytic cavity. The ultraviolet lamp and the catalytic mesh are correspondingly disposed, and the air entering from the magneto-oxygen cavity is blown out from the air outlet after passing through the ultraviolet lamp and the catalytic mesh.

[0009] Preferably, two catalytic meshes are provided and are respectively disposed on both sides of the ultraviolet lamp. The size of the catalytic mesh is equivalent to the cross-sectional size of the photo-magneto-catalytic cavity; at least one of nano-titanium dioxide, silicon dioxide, zinc oxide, and aluminum oxide is loaded on the catalytic mesh.

[0010] Preferably, a second magnetic pole is disposed in the photo-magneto-catalytic cavity; the direction of the magnetic field generated by the second magnetic pole is opposite to the moving direction of the air entering the photo-magneto-catalytic cavity from the magneto-oxygen cavity; the magnetic field generated by the second magnetic pole passes through the catalytic mesh.

[0011] Preferably, the magnetic induction intensity of the magnetic field generated by the second magnetic pole is 0.4T to 0.5T. The N pole of the second magnetic pole is disposed on the side wall near the air outlet in the photo-magneto-catalytic cavity, and the S pole of the second magnetic pole is disposed on the side wall opposite to the N pole in the photo-magneto-catalytic cavity; several second magnetic poles are arranged in the photo-magneto-catalytic cavity.

[0012] A photo-magneto-oxidation disinfection method includes the following steps:

[0013] S1: Generate negative ions in the magneto-oxygen cavity. The magnetic field in the magneto-oxygen cavity increases the negative ion concentration, and at the same time makes the negative ions move in the opposite direction to the moving direction of the air entering the magneto-oxygen cavity, increasing the residence time of the negative ions. Combine the ozone released in the magneto-oxygen cavity to perform a super-strong oxidation disinfection on the air entering the magneto-oxygen cavity.

[0014] S2: The air that has undergone the first disinfection enters the photo-magneto-catalytic cavity, and after undergoing a second disinfection through the synergistic effect of the magnetic field and photocatalysis in the photo-magneto-catalytic cavity, the disinfected air is released into the external air.

[0015] Preferably, in step S1, ozone is simultaneously released in the magneto-oxygen cavity, so that ozone and negative ions form a strong oxidation in the magneto-oxygen cavity, and the release directions of ozone and negative ions, the direction of the magnetic field in the magneto-oxygen cavity, and the moving direction of the air entering the magneto-oxygen cavity are perpendicular to each other.

[0016] Preferably, in step S2, a magnetic field is set in the photo-magnetic catalytic cavity, and the magnetic field in the photo-magnetic catalytic cavity passes through the catalytic mesh to promote the generation of hydroxyl radicals; the direction of the magnetic field in the photo-magnetic catalytic cavity is opposite to the movement direction of the air entering the photo-magnetic catalytic cavity.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. The present invention creatively introduces a magnetic field during the negative ion disinfection process, which not only greatly enhances the release concentration of negative oxygen ions, thereby improving the efficiency of removing fine particles, but also can intercept the released negative oxygen ions, enabling the negative oxygen ions to stay in the cavity for a long time under the action of the Lorentz force, increasing the disinfection time of the negative oxygen ions, and organically combining a trace amount of ozone to achieve rapid and dead-end disinfection of bacteria and viruses in the air in the cavity;

[0019] 2. The present invention introduces a magnetic effect, organically combines the magnetic field and the catalytic mesh, and under the electromagnetic induction of the magnetic field, enhances the separation of hole electrons of the catalyst under ultraviolet irradiation, improves the activity of the TiO2 nano-catalytic mesh, enhances the redox ability of the catalyst, greatly reduces the time of the photocatalytic reaction, improves the catalytic efficiency, and enables the rapid killing and decomposition of bacteria and viruses in the air;

[0020] 3. The device of the present invention first performs magnetic oxygen and then photo-magnetic catalysis, which can not only intercept the residues generated after magnetic oxygen disinfection, but also degrade the trace amount of ozone that may escape; the internal structure of the present invention is reasonably arranged to perform secondary disinfection on the polluted air, which can not only make the polluted air fully enter the cavity for disinfection, but also achieve coexistence of humans and machines under hyperoxidation disinfection. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic diagram of the principle of the present invention;

[0023] Figure 2 It is a schematic diagram of the photo-magnetic catalytic cavity of the present invention;

[0024] Figure 3 It is a schematic diagram of the magnetic oxidation cavity of the present invention.

[0025] In the figure: 1 - Photo-magnetic catalytic chamber; 101 - Ultraviolet lamp; 102 - Second magnetic pole; 103 - Catalytic mesh; 2 - Vent; 3 - Magneto-oxygen chamber; 301 - First magnetic pole; 302 - Ozone generator; 303 - Negative ion generator; 4 - Air inlet; 5 - Air outlet; 6 - Fan. Detailed implementation mode

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] As Figures 1-3 shown, a photo-magnetic oxidation disinfection device includes an air inlet 4 and an air outlet 5. After the air containing bacteria and viruses from the outside enters through the air inlet 4, it is blown out from the air outlet 5 after completing the disinfection process inside the device.

[0028] The disinfection device of the present invention specifically includes a magneto-oxygen chamber 3 and a photo-magnetic catalytic chamber 1. The magneto-oxygen chamber 3 and the photo-magnetic catalytic chamber 1 are connected. The air inlet 4 and the air outlet 5 are respectively arranged on the magneto-oxygen chamber 3 and the photo-magnetic catalytic chamber 1. The magneto-oxygen chamber 3 is used to release negative oxygen ions and ozone to perform primary disinfection on the air entering through the air inlet 4. Under the action of the magnetic field, not only can the concentration of negative oxygen ions be increased, the charging of fine particles be enhanced to improve the removal efficiency of fine particles, but also the residence time of the negative oxygen ion concentration in the chamber can be extended, enhancing the disinfection efficiency.

[0029] The photo-magnetic catalytic chamber 1 is used to perform secondary disinfection of magnetic field-enhanced photocatalysis on the air entering from the magneto-oxygen chamber 3. Photocatalysis is realized by irradiating a catalytic mesh with an ultraviolet lamp. Under the irradiation of ultraviolet rays, hydroxyl radicals that can be used for sterilization are generated. Under the action of magnetic field enhancement, the activity of the catalyst is enhanced and the photocatalysis time is shortened, so as to quickly disinfect and degrade the possible residual bacteria and viruses in the air, realizing coexistence of humans and machines.

[0030] A negative ion generator 303 and a first magnetic pole 301 are arranged in the magneto-oxygen chamber 3. The magnetic field direction generated by the first magnetic pole 301 is perpendicular to the movement direction of the air entering from the air inlet 4. The magnetic field generated by the first magnetic pole 301 increases the concentration of negative ions generated by the negative ion generator 303. At the same time, the movement direction of the negative ions also changes due to the Lorentz force generated by the magnetic field, so that it is opposite to the movement direction of the entering air, making the negative ions stay in the chamber for a long time and improving the disinfection efficiency of the negative ions.

[0031] A further technical solution is that an ozone generator 302 is provided in the magneto-oxygen chamber 3. The ozone generator 302 is used to generate ozone. Under the action of ozone and negative ions, the magneto-oxidation chamber becomes a super-oxidation space, which can quickly and thoroughly disinfect bacteria and viruses in the air without dead ends. The directions in which the ozone generator 302 and the negative ion generator 303 release ozone and negative ions, the direction of the magnetic field generated by the first magnetic pole 301, and the movement direction of the air entering through the air inlet 4 are perpendicular to each other; the magnetic induction intensity generated by the first magnetic pole 301 is 0.2T to 0.35T. A small amount of ozone is released in the magneto-oxygen chamber 3 through the ozone generator 302. Ozone and negative ions together form a strong oxidation effect, which can efficiently and quickly kill bacteria and viruses in the air.

[0032] An ultraviolet lamp 101 and a catalytic net 103 are provided in the photo-magnetic catalytic chamber 1. The ultraviolet lamp 101 and the catalytic net 103 are arranged correspondingly. The air entering from the magneto-oxygen chamber 3 is blown out from the air outlet 5 after passing through the ultraviolet lamp 101 and the catalytic net 103.

[0033] Two catalytic nets 103 are provided, which are respectively arranged on both sides of the ultraviolet lamp 101. The size of the catalytic net 103 is equivalent to the cross-sectional size of the photo-magnetic catalytic chamber 1; the base material of the catalytic net 103 is nickel foam, and at least one of nano-titanium dioxide, silicon dioxide, zinc oxide, and aluminum oxide is loaded on the catalytic net 103.

[0034] A second magnetic pole 102 is provided in the photo-magnetic catalytic chamber 1; the direction of the magnetic field generated by the second magnetic pole 102 is opposite to the movement direction of the air entering the photo-magnetic catalytic chamber 1 from the magneto-oxygen chamber 3; the magnetic field generated by the second magnetic pole 102 passes through the ultraviolet lamp 101 and the catalytic net 103. The magnetic field in the photo-magnetic catalytic chamber 1 can effectively promote the generation of hydroxyl radicals. This is because the magnetic field generates electromagnetic induction, which accelerates the separation of hole electrons in the catalyst under photocatalysis, enhances the redox ability of the catalyst, shortens the catalytic reaction time, and greatly improves the photocatalytic reaction efficiency. Finally, the disinfected clean air is released into the environment through the fan 6 at the air outlet 5. The fan 6 at the air outlet 5 sucks the air through the magneto-oxygen chamber 3 and the photo-magnetic catalytic chamber 1 in sequence, and can fully suck the polluted air into the chamber.

[0035] The N pole of the second magnetic pole 102 is arranged on the side wall near the air outlet 5 in the photo-magnetic catalytic chamber 1, and the S pole of the second magnetic pole 102 is arranged on the side wall opposite to the N pole in the photo-magnetic catalytic chamber 1; several second magnetic poles 102 are arranged in the photo-magnetic catalytic chamber 1. In the photo-magnetic catalytic chamber 1, ultraviolet lamps 101 are evenly distributed in the middle of the chamber, catalytic nets 103 are placed on both sides of the ultraviolet lamps 101, the magnetic field generated by the second magnetic poles 102 is opposite to the flow direction of the air in the chamber, and the magnetic field is perpendicular to the catalytic nets 103, so that the ultraviolet lamps 101 and the catalytic nets 103 can be covered by the magnetic field to a great extent.

[0036] The air containing bacteria and viruses is first oxidized and disinfected through the magnetic oxygen chamber 3 and then undergoes a catalytic reaction and disinfection through the photo-magnetic catalytic chamber 1. It can not only effectively intercept and kill the dead bacteria and viruses generated after disinfection through the catalytic net 103, but also contain the escaped trace ozone, realizing coexistence of humans and machines.

[0037] Combined with the above device, a photo-magnetic oxidation disinfection method is provided, including the following steps:

[0038] S1: Generate negative ions in the magnetic oxygen chamber. The magnetic field in the magnetic oxygen chamber increases the concentration of negative ions, and at the same time makes the negative ions move in the opposite direction to the air entering the magnetic oxygen chamber, increasing the residence time of negative ions. Combined with the ozone released in the magnetic oxygen chamber, the air entering the magnetic oxygen chamber is subjected to a super strong oxidation disinfection for the first time;

[0039] S2: The air that has undergone the first disinfection enters the photo-magnetic catalytic chamber, and after undergoing a second disinfection through the synergistic effect of the magnetic field and photocatalysis in the photo-magnetic catalytic chamber, the disinfected air is released into the external air.

[0040] In step S1, ozone is simultaneously released in the magnetic oxygen chamber, so that ozone and negative ions form a strong oxidation in the magnetic oxygen chamber, and the release directions of ozone and negative ions are opposite, and the direction of the magnetic field in the magnetic oxygen chamber and the movement direction of the air entering the magnetic oxygen chamber are perpendicular to each other.

[0041] In step S2, a magnetic field is set in the photo-magnetic catalytic chamber. The magnetic field in the photo-magnetic catalytic chamber passes through the catalytic net to promote the generation of hydroxyl radicals; the direction of the magnetic field in the photo-magnetic catalytic chamber is opposite to the movement direction of the air entering the photo-magnetic catalytic chamber.

[0042] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, is similarly included in the patent protection scope of the present invention.

[0043] Experimental process and results:

[0044] First, according to WS / T 648—2019 General Hygiene Requirements for Air Disinfection Machines, an air disinfection simulation on-site test was carried out in a closed space. The test device was placed at the designated position for statistical evaluation of the sterilization effect. For the particulate removal effect, smoke was generated in the room for statistical evaluation.

[0045] Control group 1 was a blank control group. The growth effect of the flora and the particulate removal rate were statistically evaluated. Bacterial culture was carried out, and the bacteria grew naturally. The sterilization efficiency was 0. Particulates settled naturally in part in the space, but the effect was not good.

[0046] Control group 2 used a conventional negative ion generator and ozone generator device, which had a certain bactericidal effect on bacteria, accelerated the settlement of particulates, had a certain removal effect, and the ozone amount increased significantly.

[0047] Control group 3 used a magnetic oxidation cavity, which had a strong bactericidal effect on bacteria. Compared with the conventional negative ion plus ozone, the sterilization time was short, the particulate concentration decreased significantly, and the concentration reached below the national standard safety value, but the ozone escape amount did not change much.

[0048] Control group 4 used a conventional ultraviolet plus catalytic net, which had a certain bactericidal effect on bacteria, and had a better bactericidal effect than the conventional negative ion plus ozone. The particulate removal effect was not obvious, and there was no ozone escape.

[0049] Control group 5 used a photo-magnetic catalytic cavity. Compared with the conventional photocatalysis, the bactericidal effect on bacteria was improved, and the sterilization time was shortened, but the particulate removal effect had no significant change, and there was no ozone escape.

[0050] Control group 6 used the present invention, which had an obvious bactericidal effect, greatly reduced the sterilization time. At the same time, the particulate concentration removal effect was obvious, and there was no ozone escape.

[0051] A floating air dust and bacteria sampler (for sterilization effect evaluation), a particulate matter tester (for detecting particulate concentration), and an ozone meter (for detecting ozone escape amount) were used to detect control groups 1 - 6. The results are as follows:

[0052]

[0053] It can be seen from the above results that the present invention has a good bacteria killing rate. The sterilization time is greatly shortened compared with the conventional dynamic disinfection technology, and it has a strong purification effect on particulates. At the same time, there is no ozone escape, and true coexistence of humans and machines can be achieved.

[0054] Those of ordinary skill in the art of this technology should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. As long as within the scope of the essential spirit of the present invention, appropriate changes and variations made to the above embodiments fall within the scope of protection required by the present invention.

Claims

1. A photo-magnetic oxidation disinfection and sterilization device, comprising an air inlet (4) and an air outlet (5), characterized in that: It includes an anion oxygen chamber (3) and a photo-magnetic catalytic chamber (1). The anion oxygen chamber (3) is in communication with the photo-magnetic catalytic chamber (1). The air inlet (4) and the air outlet (5) are respectively arranged on the anion oxygen chamber (3) and the photo-magnetic catalytic chamber (1). The anion oxygen chamber (3) is used to magnetize the generated anions and perform a primary disinfection on the air entering from the air inlet (4). The photo-magnetic catalytic chamber (1) is used to perform a secondary disinfection of photocatalysis on the air entering from the anion oxygen chamber (3). An anion generator (303) and a first magnetic pole (301) are arranged in the anion oxygen chamber (3). The magnetic field direction generated by the first magnetic pole (301) is perpendicular to the movement direction of the air entering from the air inlet (4). The magnetic field generated by the first magnetic pole (301) makes the movement direction of the anions generated by the anion generator (303) opposite to the movement direction of the entering air. An ozone generator (302) is arranged in the anion oxygen chamber (3). The directions of the ozone and anions released by the ozone generator (302) and the anion generator (303), the magnetic field direction generated by the first magnetic pole (301), and the movement direction of the air entering from the air inlet (4) are perpendicular to each other. An ultraviolet lamp (101) and a catalytic net (103) are arranged in the photo-magnetic catalytic chamber (1). The ultraviolet lamp (101) and the catalytic net (103) are arranged correspondingly. The air entering from the anion oxygen chamber (3) is blown out from the air outlet (5) after passing through the ultraviolet lamp (101) and the catalytic net (103). A second magnetic pole (102) is arranged in the photo-magnetic catalytic chamber (1). The magnetic field direction generated by the second magnetic pole (102) is opposite to the movement direction of the air entering from the anion oxygen chamber (3) into the photo-magnetic catalytic chamber (1). The magnetic field generated by the second magnetic pole (102) passes through the catalytic net (103). The N pole of the second magnetic pole (102) is arranged on the side wall of the photo-magnetic catalytic chamber (1) near the air outlet (5), and the S pole of the second magnetic pole (102) is arranged on the side wall of the photo-magnetic catalytic chamber (1) opposite to the N pole.

2. The photo-magnetic oxidation disinfection and sterilization device according to claim 1, wherein: The magnetic induction intensity generated by the first magnetic pole (301) is 0.2T - 0.35T.

3. The photo-magnetic oxidation disinfection and sterilization device according to claim 1, characterized in that: Two catalytic nets (103) are arranged, respectively on both sides of the ultraviolet lamp (101). The size of the catalytic net (103) is equivalent to the cross-sectional size of the photo-magnetic catalytic chamber (1). At least one of nano-titanium dioxide, silicon dioxide, zinc oxide, and aluminum oxide is loaded on the catalytic net (103).

4. The photo-magnetic oxidation disinfection and sterilization device according to claim 1, wherein: The magnetic induction intensity of the magnetic field generated by the second magnetic pole (102) is 0.4T - 0.5T, and several second magnetic poles (102) are arranged in the photo-magnetic catalytic chamber (1).

5. A photo-magnetic oxidation disinfection method, based on the photo-magnetic oxidation disinfection device according to any one of claims 1-4, characterized in that, It includes the following steps: S1: Generate anions in the anion oxygen chamber. The magnetic field in the anion oxygen chamber increases the anion concentration, and at the same time makes the movement direction of the anions opposite to the movement direction of the air entering the anion oxygen chamber, improving the residence time of the anions. Combine with the ozone released in the anion oxygen chamber to perform a primary super-oxidation disinfection on the air entering the anion oxygen chamber. S2: The air that has been disinfected once enters the photo-magnetic catalytic chamber. After secondary disinfection through the synergistic effect of the magnetic field and photocatalysis in the photo-magnetic catalytic chamber, the disinfected air is released into the external air.

6. The photo-magnetic oxidation disinfection and sterilization method according to claim 5, characterized in that: In step S1, ozone is simultaneously released in the magneto-oxygen chamber, so that ozone and negative ions form strong oxidation in the magneto-oxygen chamber together. Moreover, the release directions of ozone and negative ions are opposite, and the direction of the magnetic field in the magneto-oxygen chamber and the movement direction of the air entering the magneto-oxygen chamber are perpendicular to each other.

7. The photo-magnetic oxidation disinfection method according to claim 6, characterized in that: In step S2, a magnetic field is set in the photo-magnetic catalytic chamber, and the magnetic field in the photo-magnetic catalytic chamber passes through the catalytic net to promote the generation of hydroxyl radicals; the direction of the magnetic field in the photo-magnetic catalytic chamber is opposite to the movement direction of the air entering the photo-magnetic catalytic chamber.

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