Plasma regeneration components, air purification devices, and air conditioning systems incorporating them.

Abstract

This invention discloses a plasma regeneration assembly, an air purification device having the same, and an air conditioning system. The plasma regeneration assembly includes an adsorption filter and a discharge element. The adsorption filter adsorbs harmful gases in the air, and the discharge element generates plasma to decompose at least some of the residual substances adsorbed on the adsorption filter. According to the plasma regeneration assembly of this invention, the plasma generated by the discharge element for decomposing the residual substances adsorbed on the adsorption filter ensures that the adsorption filter has long-term effective adsorption and filtration performance.

Description

Technical Field

[0001] This invention relates to the field of purification systems, and more specifically, to a plasma regeneration component, an air purification device having the same, and an air conditioning system. Background Technology

[0002] In related technologies, people are paying more and more attention to the air quality of their living environment, so air purification devices are being used more and more frequently. In order to remove HCHO (formaldehyde) and VOC (volatile organic compounds) from the air, the first treatment method of existing technology uses adsorption materials such as activated carbon and molecular sieves for adsorption. However, the adsorption capacity of adsorption materials is limited, and they are prone to adsorption saturation, resulting in poor adsorption function and short-term filtration performance.

[0003] The second existing treatment method is to use high-temperature catalysis technology, which decomposes VOCs by heating the catalyst to above 200°C. However, the high temperature of around 200°C limits its use in indoor purification. During long-term use, the catalyst will also gradually deteriorate in purification performance due to the adsorption of aerosols and gases that cannot be decomposed. The filtration performance of this solution is also short-lived. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art. To this end, a first aspect of the present invention provides a plasma regeneration assembly that can at least partially maintain longer filtration performance.

[0005] A second aspect of the present invention provides an air purification device having the above-described plasma regeneration component.

[0006] A third aspect of the present invention provides an air conditioning system having the above-described air purification device.

[0007] According to a first aspect of the invention, a plasma regeneration assembly includes an adsorption filter and a discharge element, the discharge element being adapted to discharge the adsorption filter to generate plasma for decomposing at least a portion of the residual substances adsorbed on the adsorption filter.

[0008] According to the plasma regeneration assembly of the first aspect of the present invention, the discharge element can generate plasma during the discharge process to decompose and adsorb at least part of the residual substances in the adsorption filter element, thereby preventing the residual substances from reducing the filtration performance of the adsorption filter element and ensuring that the adsorption filter element has long-term effective filtration performance.

[0009] According to the plasma regeneration assembly of the present invention, there are multiple adsorption filters arranged opposite to each other, and the discharge element is located between two adjacent adsorption filters.

[0010] Optionally, the discharge element is a DC discharge element, and the discharge element is a conductor or has a conductor layer.

[0011] Furthermore, the discharge element is attached to one of the adsorption filters.

[0012] Optionally, the discharge device is an AC discharge device or a pulse discharge device, and the discharge device has a conductor layer and an insulating layer, wherein the insulating layer is adapted to wrap the conductor layer.

[0013] Furthermore, the discharge element and the adsorption filter element are arranged at a distance.

[0014] Furthermore, the discharge element has a rotating shaft, and the discharge element has an adsorption position parallel to the adsorption filter element and a storage position perpendicular to the adsorption filter element. The discharge element can be rotated via the rotating shaft to switch between the adsorption position and the storage position.

[0015] Furthermore, the discharge element has a fluid flow port suitable for being opposite to the adsorption filter element.

[0016] Furthermore, the adsorption filter element includes at least one of molecular sieve, activated carbon, and MOF, and the adsorption filter element includes a catalyst.

[0017] The air purification device according to the second aspect of the present invention includes a plasma regeneration component as described in the first aspect of the present invention.

[0018] According to the second aspect of the present invention, the air purification device has a longer effective operating time, thus improving the user experience.

[0019] The air conditioning system according to the third aspect of the present invention includes an air purification device as described in the second aspect of the present invention.

[0020] According to the third aspect of the present invention, the air conditioning system has a longer effective air filtration capacity, thereby improving the user experience.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure of the plasma regeneration component according to the first embodiment of the present invention;

[0024] Figure 2This is a schematic diagram of the plasma regeneration assembly of the second embodiment of the present invention with the discharge element in the storage position;

[0025] Figure 3 This is a schematic diagram of the plasma regeneration assembly of the second embodiment of the present invention with the discharge element in the adsorption position.

[0026] Figure label:

[0027] The plasma regeneration assembly 100 includes an adsorption filter 1, a first adsorption filter 11, a second adsorption filter 12, a discharge component 2, a rotating shaft 21, and a drive component 22. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of this invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] The present invention will now be described with reference to the accompanying drawings and specific embodiments. Figures 1-3 All are side views of the plasma regeneration assembly 100.

[0033] First, combine Figures 1-3 The plasma regeneration component 100 of this invention is described in an embodiment. It should be noted that the plasma regeneration component 100 of this invention can filter not only gases such as air, but also some non-conductive liquids to avoid safety risks caused by the liquid becoming charged.

[0034] like Figures 1-3 As shown, the plasma regeneration assembly 100 of this embodiment may include an adsorption filter element 1 and a discharge element 2. A power source can supply power to the discharge element 2. It is understood that, under long-term filtration conditions, the adsorption filter element 1 will accumulate residual substances such as VOCs (volatile organic compounds) (e.g., filter residue), which will reduce the filtration capacity of the adsorption filter element 1.

[0035] When the power supply supplies power to the discharge element 2, a voltage difference is generated between the discharge element 2 and the adsorption filter element 1, so that the discharge element 2 can discharge to the adsorption filter element 1. The discharge element 2 can have a sufficiently high voltage (e.g., a voltage ≥1000V). Under high voltage, the air between the discharge element 2 and the adsorption filter element 1 becomes a conductor, so that the discharge element 2 discharges to the adsorption filter element 1 through the air.

[0036] Therefore, when the discharge element 2 discharges onto the adsorption filter element 1, the air and other substances in the space between the discharge element 2 and the adsorption filter element 1 become charged and transformed into a plasma state, thus forming plasma. At this time, not only can the charged discharge element 2 adsorb at least some of the residual substances attached to the adsorption filter element 1 under the action of electromagnetic force, but the plasma-state air can also adsorb at least some of the residual substances attached to the adsorption filter element 1. Simultaneously, the flowing air can carry away the residual substances adsorbed by the plasma along with the plasma. The plasma can also decompose the adsorbed formaldehyde into water and carbon dioxide, which are then released into the air, thereby achieving environmental protection.

[0037] According to the plasma regeneration assembly 100 of the present invention, the discharge element 2 can generate plasma during the discharge process to decompose and adsorb at least part of the residual substances on the adsorption filter element 1, thereby avoiding excessive residual substances on the adsorption filter element 1 and reducing the filtration performance of the adsorption filter element 1, and ensuring that the adsorption filter element 1 has long-term effective filtration performance.

[0038] In some specific embodiments, the discharge element 2 can discharge while the fluid is being filtered through the adsorption filter element 1, so as to adsorb the residual substances attached to the adsorption filter element 1 in a timely manner, thereby ensuring that the adsorption filter element 1 has good filtration capability at all times.

[0039] In other embodiments, the discharge element 2 may also discharge periodically or when the fluid stops passing through the adsorption filter element 1, so as to periodically adsorb the residual substances attached to the adsorption filter element 1 and save energy.

[0040] In some specific embodiments, the plasma regeneration assembly 100 is protected by multiple layers of insulation to prevent personnel from directly touching high-voltage components such as the discharge component 2, thus ensuring safe use.

[0041] In some specific embodiments, the adsorption filter 1 can be a filter screen, and the discharge element 2 can include an electrode plate. Each discharge element 2 can include only one electrode plate, or it can be formed by multiple spaced electrode plates electrically connected together. A fluid channel can be formed between two electrode plates so that the fluid can pass through the discharge element 2 and facilitate the smooth passage of the fluid through the plasma regeneration component 100.

[0042] Specifically, such as Figures 1-2 As shown, the adsorption filter 1 can be opposite to the electrode plate of the discharge element 2 to improve the discharge effect and increase the contact area between the plasma generated by the discharge element 2 and the adsorption filter 1, ensuring the adsorption effect of the plasma on the residual substances on the adsorption filter 1, and at the same time improving the electromagnetic adsorption effect of the discharge element 2 on the residual substances on the adsorption filter 1.

[0043] In some specific embodiments, the adsorption filter element 1 can be formed by extrusion molding of one or more of activated carbon, molecular sieves, and MOFs (metal-organic frameworks). The adsorption filter element 1 contains a catalyst, which can be one or more of noble metals such as Pt and Ba, and metal oxides such as Mn2Ox, CuO, and CeO. Activated carbon, molecular sieves, and catalysts all have adsorption properties. In other embodiments, the adsorption filter element 1 can also be loaded onto a substrate, which can be nickel foam, honeycomb aluminum, or lapis lazuli, etc. The catalyst can be noble metals such as platinum, palladium, and silver, or metal oxides such as manganese oxide, cerium dioxide, and copper oxide. In still other embodiments, the catalyst can also be loaded onto activated carbon and molecular sieves before molding or loading.

[0044] In some optional embodiments of the present invention, such as Figures 2-3 As shown, the plasma regeneration assembly 100 includes a plurality of adsorption filters (e.g., a first adsorption filter 11 and a second adsorption filter 12, for illustrative purposes only) arranged opposite each other. The discharge element 2 is located between two adjacent adsorption filters 1. Thus, the discharge element 2 can simultaneously discharge to the adjacent first adsorption filter 11 and second adsorption filter 12, thereby generating plasma between the discharge element 2 and the first adsorption filter 11 and between the discharge element 2 and the second adsorption filter 12. This allows for the simultaneous adsorption of residual substances from the first adsorption filter 11 and the second adsorption filter 12, improving cleaning efficiency.

[0045] More specifically, the plasma regeneration components 100 can be multiple sets arranged side by side facing each other, and the fluid passes through multiple sets of plasma regeneration components 100 in sequence to improve the cleaning effect on the filter adsorption element 1.

[0046] In some specific embodiments, the discharge element 2 is a DC discharge element, meaning that a DC power supply can pass DC current to the discharge element 2. The discharge element 2 has a conductor layer or is a conductor. The conductor layer can be metal or graphite, and its shape can be cylindrical, threaded, elongated, or irregularly shaped. Thus, the structure of the discharge element 2 is simple.

[0047] More specifically, such as Figure 1 As shown, the discharge element 2 is attached to the adsorption filter element 1. Thus, the discharge element 2 is directly electrically connected to the adsorption filter element 1, and the discharge element 2 and the adsorption filter element 1 are integrated as a whole as the discharge element 2. This not only improves the electromagnetic adsorption force of the discharge element 2 on the adsorption filter element 1, but also saves the arrangement space of the plasma regeneration assembly 100.

[0048] Optionally, for example in an embodiment where the discharge element 2 and the adsorption filter element 1 are attached together (for illustrative purposes only), the discharge element 2 has a fluid flow port suitable for being opposite to the adsorption filter element 1, so that the fluid can pass smoothly through the plasma regeneration assembly 100 and achieve filtration.

[0049] In other embodiments, the discharge element 2 is an AC discharge element or a pulse discharge element, meaning that an AC power source can supply AC or pulsed current to the discharge element 2. The discharge element 2 has a conductor layer and an insulating layer. The conductor layer can be made of metal or graphite, and its shape can be cylindrical, threaded, elongated, or irregularly shaped. The insulating layer can be made of ceramic, quartz, polytetrafluoroethylene, etc. The insulating layer is suitable for wrapping the conductor layer. Therefore, the plasma generated by the discharge element 2 during discharge is more than that generated by direct current, resulting in a stronger adsorption capacity for residual substances in the adsorption filter element 1.

[0050] In other embodiments, such as Figure 2 and Figure 3 As shown, the discharge element 2 and the adsorption filter element 1 are spaced apart. Therefore, the side of the adsorption filter element 1 facing the discharge element 2 has space to generate more plasma gas, improving the adsorption effect on residual substances on the adsorption filter element 1. Simultaneously, it provides space for plasma flow, facilitating the plasma to carry residues away from the adsorption filter element 1.

[0051] Specifically, such as Figure 2 and Figure 3 As shown, the discharge element 2 has a rotating shaft 21, and one or both ends of the discharge element 2 may be provided with a driving element 22 connected to the rotating shaft 21. More specifically, the driving element 22 can be a motor, and the output shaft of the motor can be connected to the rotating shaft 21 to drive the discharge element 2 to rotate. The discharge element 2 has an adsorption position parallel to the adsorption filter element 1 and a storage position perpendicular to the adsorption filter element 1. The discharge element 2 can be rotated via the rotating shaft 21 to switch between the adsorption position and the storage position.

[0052] When the discharge element 2 is in the adsorption position, it can be directly aligned with the adsorption filter element 1 to improve discharge efficiency and increase the amount of plasma generated. When the discharge element 2 is in the storage position, it allows for greater flow space for the fluid passing through the plasma regeneration assembly 100.

[0053] The air purification device according to an embodiment of the present invention is described below.

[0054] The air purification device of this invention is provided with a plasma regeneration component 100 as described in any of the above embodiments of this invention.

[0055] According to an embodiment of the present invention, by providing a plasma regeneration component 100, the air purification device has a longer effective operating time, thus improving the user experience.

[0056] The air conditioning system according to an embodiment of the present invention is described below.

[0057] The air conditioning system of this invention is equipped with an air purification device as described in any of the above embodiments of this invention. Therefore, the air conditioning system can purify indoor air while simultaneously adjusting the indoor temperature.

[0058] According to embodiments of the present invention, the air conditioning system, by incorporating an air purification device, has a longer effective air filtration capacity, thus improving the user experience. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0059] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A plasma regeneration assembly, characterized in that, include: An adsorption filter and a discharge element, the discharge element being adapted to discharge the adsorption filter to generate plasma for decomposing at least a portion of the residual substances adsorbed in the adsorption filter. The adsorption filter elements are multiple elements arranged opposite to each other, and the discharge element is located between two adjacent adsorption filter elements. The discharge element has a rotating shaft, and the discharge element has an adsorption position parallel to the adsorption filter element and a storage position perpendicular to the adsorption filter element. The discharge element can be rotated via the rotating shaft to switch between the adsorption position and the storage position. The discharge element has a fluid flow port that is suitable for being opposite to the adsorption filter element.

2. The plasma regeneration assembly according to claim 1, characterized in that, The discharge device is a DC discharge device, and the discharge device is a conductor or has a conductor layer.

3. The plasma regeneration assembly according to claim 2, characterized in that, The discharge element is attached to one of the adsorption filter elements.

4. The plasma regeneration assembly according to claim 1, characterized in that, The discharge device is an AC discharge device or a pulse discharge device, and the discharge device has a conductor layer and an insulating layer, wherein the insulating layer is adapted to wrap the conductor layer.

5. The plasma regeneration assembly according to claim 1, characterized in that, The discharge element and the adsorption filter element are spaced apart.

6. The plasma regeneration assembly according to claim 1, characterized in that, The adsorption filter element includes at least one of molecular sieve, activated carbon, and MOF, and the adsorption filter element includes a catalyst.

7. An air purification device, characterized in that, Includes the plasma regeneration assembly according to any one of claims 1-6.

8. An air conditioning system, characterized in that, Includes the air purification device according to claim 7.

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