Air purification device based on photocatalyst
Technical Field
The utility model relates to the field of air treatment equipment, in particular to an air purification device based on a photocatalyst.
Background
With the continuous improvement of living standard and the continuous enhancement of health concept, the indoor air quality problem is attracting more and more attention. At present, the problem of indoor air pollution is serious, especially, the problem of air pollution to different degrees exists in newly decorated rooms due to the use of decoration materials, and the indoor air pollution becomes an important problem which endangers human health. Organic pollutants such as formaldehyde, benzene, toluene, xylene, olefin, aromatic hydrocarbon, TVOC gas and the like released from materials such as wood, paint, glue, furniture and the like used for decoration materials can reduce the resistance of a human body and cause chronic diseases and even carcinogenesis. The indoor placement of equipment capable of degrading the harmful gases can improve the air quality and protect the human health. At present, the prior art has air purification equipment placed indoors, most of the air purification equipment only plays a role in filtering and adsorbing, the toxic and harmful gases cannot be really decomposed, and meanwhile, the problem of saturated filtering and adsorbing exists, and the purification capacity of the air purification equipment is very limited.
Therefore, there is a need to provide a new air purification device based on photocatalyst to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide an air purification device based on a photocatalyst, and aims to solve the problem that the purification capacity of the existing air purification equipment is limited.
In order to achieve the purpose, the air purification device based on the photocatalyst comprises a shell with a containing cavity and a photocatalytic purification device arranged in the containing cavity, wherein the containing cavity is provided with an air inlet and an air outlet which are communicated with the containing cavity, the air inlet end of the photocatalytic purification device is communicated with the air inlet, the air outlet end of the photocatalytic purification device is communicated with the air outlet, the photocatalytic purification device forms an air treatment channel, the inner wall of the air treatment channel is attached with a photocatalytic film, and an excitation light source is arranged in the air treatment channel.
Preferably, the light catalytic purification device includes a plurality of light catalytic purifiers that establish ties in proper order, including barrel and installing support, the barrel forms the air treatment passageway, the light catalytic membrane attached with the barrel inner wall, the installing support with the wall connection of barrel, excitation light source install in on the installing support.
Preferably, the inner wall of the cylinder is coated with a reflective layer.
Preferably, the installing support includes butt outer lane, connecting rod and solid fixed ring, the butt outer lane supports tightly barrel or photocatalysis membrane, the both ends of connecting rod connect in the relative both sides of butt outer lane, be fixed in set up in on the connecting rod, gu fixed ring cover is located on the excitation light source.
Preferably, the photocatalytic purification device further comprises a fixed support, the fixed support is connected with the shell, and the photocatalytic purifier is mounted on the fixed support.
Preferably, the fixed bolster includes base and braced frame, braced frame is last to form a plurality of installation departments that are the array and arrange, the photocatalytic purifier with the quantity of installation department unanimous and the one-to-one with the connection can be dismantled to the installation department.
Preferably, photocatalytic purification device with still be provided with filtering component between the air inlet, filtering component includes the edge metal filters, active carbon filter screen and the high-efficient air cleaner of HEPA that the air flow direction set gradually, the high-efficient air cleaner of HEPA is made by superfine glass fiber paper material.
Preferably, a dehumidifying device is further disposed between the photocatalytic purification device and the air inlet.
Preferably, the excitation light source is an ultraviolet lamp with a wavelength of 365nm to 485 nm.
According to the technical scheme, air containing pollutants enters the shell from the air inlet, enters the photocatalytic purification chamber after being pretreated to be purified, the photocatalytic purification device is internally provided with the photocatalytic layer, under the irradiation of the excitation light source, the photocatalytic layer can be used for catalytically decomposing and removing formaldehyde, benzene, TVOC and other toxic and harmful gases in the indoor air, and meanwhile, the photocatalytic layer has the functions of sterilization and mildew prevention, so that the effects of improving the indoor air quality and protecting the health of people are achieved. The purified air is finally discharged from the air outlet.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an air purification device based on a photocatalyst in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a photocatalytic purification apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic partial sectional view of a photocatalytic purification apparatus according to an embodiment of the present invention.
The reference numbers illustrate:
1. a housing; 11. an air inlet; 12. an air outlet; 2. a photocatalytic purification device; 21. attaching a photocatalytic film; 22. an excitation light source; 23. a barrel; 24. mounting a bracket; 241. abutting against the outer ring; 242. a connecting rod; 243. a fixing ring; 25. fixing a bracket; 251. a base; 252. a support frame; 31. a metal filter screen; 32. an active carbon filter screen; 33. a HEPA high efficiency air filter; 34. a dehumidifying device.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
As shown in fig. 1 to 3, in an embodiment of the present invention, an air purification device based on a photocatalyst includes a housing 1 having a cavity and a photocatalytic purification device 2 disposed in the cavity, the cavity is provided with an air inlet 11 and an air outlet 12 communicating with the cavity, an air inlet end of the photocatalytic purification device 2 is communicated with the air inlet 11, an air outlet end of the photocatalytic purification device 2 is communicated with the air outlet 12, the photocatalytic purification device 2 forms an air treatment channel, a photocatalytic film 21 is attached to an inner wall of the air treatment channel, and an excitation light source 22 is disposed in the air treatment channel.
In the above embodiment, air containing pollutants enters the casing 1 through the air inlet, and enters the photocatalytic purification chamber for purification after being pretreated, because the photocatalytic layer is arranged in the photocatalytic purification device 2, under the irradiation of the excitation light source 22, the photocatalytic layer can catalyze, decompose and remove formaldehyde, benzene, TVOC and other toxic and harmful gases in indoor air, and meanwhile, the photocatalytic layer has the functions of sterilization and mildew prevention, so that the effects of improving indoor air quality and protecting human health are achieved. The purified air is finally discharged from the air outlet.
Wherein, still be provided with filtering component between photocatalytic purification device 2 and the air inlet, filtering component includes along the metal filters 31, active carbon filter screen 32 and the high-efficient air cleaner of HEPA that the air current direction set gradually, and the high-efficient air cleaner of HEPA is made by superfine glass fiber paper material. Air containing pollutants enters the shell 1 from the air inlet, is firstly coarsely filtered by the metal filter screen 31, is then filtered by the activated carbon filter screen 32, is then filtered by the HEPA high-efficiency air filter, and is finally discharged from the air outlet after passing through the photocatalytic treatment device. The HEPA high-efficiency air filter can effectively remove small-particle dust and suspended matters in air and can effectively filter smoke and dust. A dehumidifying device 34 is also arranged between the photocatalytic purification device 2 and the air inlet, and a dehumidifying device 34 is also arranged between the HEPA high-efficiency air filter and the photocatalytic purification device 2 and used for removing moisture in the air.
The photocatalytic film is made of titanium dioxide nano materials, under the irradiation of light sources such as 365 nm-485 nm wavelength ultraviolet lamps of energy-saving lamps or LED lamps, the titanium dioxide nano materials catalyze, decompose and remove toxic and harmful gases such as formaldehyde, benzene TVOC and the like in indoor air, and meanwhile, the titanium dioxide nano materials have the functions of sterilization and mildew prevention, so that the effects of improving the indoor air quality and protecting the health of people are achieved.
The photocatalytic purification device 2 comprises a plurality of photocatalytic purifiers which are sequentially connected in series, and comprises a cylinder body 23 and a mounting support 24, wherein the cylinder body 23 forms an air treatment channel, a photocatalytic film is attached to the inner wall of the cylinder body 23, the mounting support is connected with the inner wall of the cylinder body 23, and an excitation light source 22 is mounted on the mounting support. Therefore, the length of the air treatment access is increased in a limited space, and the treatment time of the air by the photocatalytic purifier is prolonged. The inner wall of the cylinder 23 is coated with a reflecting layer for reflecting the catalytic light source, changing the direction of the light source and avoiding the existence of a shielding area in the same body.
The mounting bracket 24 includes an abutting outer ring 241, a connecting rod 242 and a fixing ring 243, the abutting outer ring 241 abuts against the cylinder 23 or the photocatalytic film, two ends of the connecting rod 242 are connected to two opposite sides of the abutting outer ring 241 and fixed on the connecting rod 242, and the fixing ring 243 is sleeved on the excitation light source 22. The mounting bracket 24 is used for mounting the excitation light source 22, and the mounting stability of the excitation light source 22 is ensured through the connecting rod 242 and the fixing structure, and the overall strength of the mounting bracket 24 is ensured.
The photocatalytic purification device 2 further comprises a fixed support 25, the fixed support 25 is connected with the shell 1, and the photocatalytic purifier is installed on the fixed support 25. The fixed bracket is used for installing and fixing the photocatalytic purifiers, so that the photocatalytic purifiers are arranged in an array, and the space in the cavity is effectively utilized. The fixing bracket 25 includes a base 251 and a supporting frame 252, a plurality of mounting portions arranged in an array are formed on the supporting frame 252, and the photocatalytic purifiers are detachably connected with the mounting portions in a one-to-one correspondence with the mounting portions in a number consistent with that of the mounting portions. When individual photocatalytic purifier breaks down, the air purifier with the fault can be independently disassembled and replaced without replacing the whole photocatalytic purification device 2, so that the cost is saved.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.