Photocatalytic air purification device

Abstract

The utility model relates to a photocatalysis air purification device which comprises a shell, an air inlet, an air outlet, a photocatalysis filter plate and an ultraviolet lamp, the ultraviolet lamp is fixedly connected in the shell, the air inlet is formed in the top of the shell, and the air outlet is formed in the bottom of the shell; the shell is of a multi-layer structure, photocatalytic filter plates are connected between the layers, and the layers are fixedly connected through flanges. The air purifier has the advantages that the air purifier is simple in structure, and air is driven by the fan to enter the shell, is filtered and sterilized through the multiple layers of photocatalytic filter plates irradiated by ultraviolet, then is discharged from the air outlet and is led to a workshop. According to the device, air can be purified in a green and pollution-free mode, contaminating infectious microbes in the air can be killed and removed, the contaminating infectious microbes in an edible mushroom production workshop are reduced, then the problem of diseases caused by contaminating infectious microbes in the edible mushroom production process is reduced, and the device has very positive practical significance on the edible mushroom production industry.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of edible mushroom production, air purification field, especially relate to a kind of photocatalytic air purification device. BACKGROUND

[0002] In recent years, with the improvement of people's quality of life, edible fungi with high nutritional value are more and more popular with people. Edible mushroom industry has also been booming in China, forming a complete production chain from research and development to processing and sales, as well as export trade. Edible mushroom has become the fifth largest agricultural planting industry after grain, oil, vegetable and fruit in China. However, at the same time, the disease problem caused by the contamination of miscellaneous bacteria in the process of edible mushroom production has become an important limiting factor affecting the quality and yield of edible mushroom. In order to control the disease problem in the process of edible mushroom production, the common method in actual production at present is to manually remove the disease area and then add ammonia water and other chemical agents to prevent the recurrence and expansion of disease by inhibiting the growth of miscellaneous bacteria around the disease area. However, this treatment method is not conducive to the growth of edible mushrooms while inhibiting the growth of miscellaneous bacteria, affecting the yield of edible mushrooms and food safety. In this case, there is an urgent need for a method to fundamentally reduce the contamination of miscellaneous bacteria in the process of edible mushroom production. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the utility model aims at providing a kind of photocatalytic air purification device, can kill and remove the contaminating miscellaneous bacteria in air, then send it to edible mushroom production and planting workshop, reduce the contaminating miscellaneous bacteria in edible mushroom production workshop, further reduce the disease problem caused by miscellaneous bacteria pollution in the process of edible mushroom production.

[0004] To achieve the above-mentioned purpose, the utility model realizes by the following technical scheme:

[0005] A kind of photocatalytic air purification device, including shell, air inlet, air outlet, photocatalytic filter plate, ultraviolet lamp, ultraviolet lamp is fixedly connected in shell, air inlet is equipped at the top of shell, air outlet is equipped at the bottom;Shell is divided into multilayer structure, photocatalytic filter plate is connected between layer and layer, and layer and layer are fixedly connected by flange.

[0006] The flange includes two flanges, bolts, two flanges are welded with two adjacent shells respectively, and two flanges are fixedly connected by bolts.

[0007] The flange plate is equipped with sealing groove one close to outer side, and is equipped with sealing groove two close to inner side, sealing ring is arranged in sealing groove one and sealing groove two, and photocatalytic filter plate is arranged between the sealing rings of sealing groove two of oppositely arranged flange plates.

[0008] Mounting hole is arranged on the flange plate outside sealing groove one, for connecting bolt.

[0009] The air inlet is connected with a dust filter screen,

[0010] The air inlet is connected with a fan.

[0011] The air outlet is connected with a workshop air inlet.

[0012] The photocatalytic filter plate comprises, from top to bottom, an upper layer support screen, an upper layer melt-blown non-woven fabric filter screen, a coal-tar pitch-based spherical activated carbon photocatalyst composite material layer, a lower layer melt-blown non-woven fabric filter screen and a lower layer support screen.

[0013] Compared with the prior art, the photocatalytic air purification device has the following beneficial effects:

[0014] 1. The photocatalytic air purification device has a simple structure, air is driven into the shell by the fan, and is filtered, sterilized and treated by the multiple layers of photocatalytic filter plates irradiated by ultraviolet light, and is discharged from the air outlet to the workshop. The device can purify the air without pollution, kill and remove the contaminating bacteria in the air, reduce the contaminating bacteria in the edible mushroom production workshop, and further reduce the disease problems caused by the contaminating bacteria in the edible mushroom production process, which has very positive practical significance for the edible mushroom production industry.

[0015] 2. The photocatalytic air purification device adopts a shell with a multi-layer structure, which is convenient to disassemble, assemble and maintain. The photocatalytic filter plate is fixed in a sealing ring clamping manner, and can be conveniently replaced.

[0016] 3. The shell of the photocatalytic air purification device adopts a flange with an inner and outer two-stage sealing structure, so that the shell is sealed inside and outside, and air is prevented from being directly discharged from the connection. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the utility model.

[0018] Figure 2 is Figure 1 the enlarged view of C part of

[0019] Figure 3 is Figure 1 the top view of

[0020] In the drawing: 1-flange 2-bolt 3-first-stage sealing ring 4-second-stage sealing ring 5-photocatalyst filter plate 6-air inlet 7-air chamber 8-ultraviolet lamp 9-air outlet 10-shell. DETAILED DESCRIPTION

[0021] The utility model will be described in detail below in combination with the drawings of the specification, but it should be pointed out that the implementation of the utility model is not limited to the following embodiments.

[0022] EMBODIMENT

[0023] See Figures 1-3 The photocatalytic air purification device has a three-stage air treatment structure, comprising a shell 10, an air inlet 6, an air outlet 9, a photocatalytic filter plate, and a UV lamp 8. The UV lamp 8 is fixedly connected inside the shell 10. The top of the shell 10 is provided with the air inlet 6, and the bottom is provided with the air outlet 9. The shell 10 is divided into four layers, each layer being an air chamber 7. The photocatalytic filter plate is connected between the layers. The layers are fixedly connected through flanges 1. The UV lamp 8 is arranged in the middle two layers of air chambers 7. A UV lamp 8 with a wavelength of 254 nm can be used to excite the photocatalyst components in the photocatalyst filter core, thereby achieving photocatalytic sterilization. The shell 10 is in the shape of a cylinder or a cuboid.

[0024] The flange 1 comprises two flange plates and bolts 2. The two flange plates are respectively welded with the two adjacent layers of shells 10, and the two flange plates are fixedly connected through the bolts 2.

[0025] The flange 1 is provided with two sealing rings, which respectively play the roles of external sealing and sealing between the air chambers 7. The flange plates are oppositely arranged. The opposite surfaces of the flange plates are in the shape of a step. A sealing groove one is arranged near the outer side, and a sealing groove two is arranged near the inner side. A first sealing ring 3 is installed in the sealing groove one, and a second sealing ring 4 is installed in the sealing groove two. The photocatalytic filter plate is clamped between the oppositely arranged second sealing rings 4, which can seal and facilitate replacement of the photocatalytic filter plate. The flange plate on the outer side of the sealing groove one is provided with a mounting hole for connecting the bolt 2. The first sealing ring 3 can realize sealing between the air chamber 7 and the outside. The second sealing ring 4 can realize sealing between the air chambers 7 while fixing the photocatalyst filter plate 5. The air in each air chamber 7 can only enter the next air chamber 7 after being filtered by the photocatalytic filter plate.

[0026] A dust filter screen is connected at the air inlet 6 to filter the larger particles of dust in the air. The air inlet 6 is connected with the air outlet 9 of the fan, and the fan provides the air flow power. The air outlet 9 is connected with the workshop air vent, and the sterilized air directly enters the workshop through the air outlet 9. The shell 10 and the fan can be supported and fixed by the bracket fixed outside the workshop air vent. The fan is selected according to the cross-sectional area of the photocatalytic filter plate. The air volume is 3600-4500 m 3 / h, and the air speed entering the air inlet 6 is 2-2.5 m / s.

[0027] The photocatalytic filter plate comprises an upper layer support net, an upper layer melt-blown non-woven fabric filter screen, a coal-tar pitch-based spherical activated carbon photocatalyst composite material layer, a lower layer melt-blown non-woven fabric filter screen and a lower layer support net arranged from top to bottom. The photocatalytic filter plate is surrounded by a metal frame, the edges of each layer are fixed with the metal frame, and the metal frame is connected between the two sealing rings 4. The edges of the coal-tar pitch-based spherical activated carbon photocatalyst composite material layer are pressed into shape by bonding with the upper and lower melt-blown non-woven fabric filter screens, and then connected with the metal frame, so as to ensure the sealing of the metal frame and the coal-tar pitch-based spherical activated carbon photocatalyst composite material layer. The upper layer support net and the lower layer support net provide certain mechanical strength for the photocatalytic filter plate, and meanwhile do not affect the photocatalytic effect.

[0028] The main component of the coal-tar pitch-based spherical activated carbon photocatalyst composite material layer is a coal-tar pitch-based photocatalyst, which can be V2O5 / coal-tar pitch-based composite spherical activated carbon material disclosed in the patent with the publication number CN 111097383 A.

[0029] The working process of the photocatalytic air purification device is as follows: under the driving of the fan, the air to be treated is sent into the shell 10 from the air inlet 6, filtered and treated by the photocatalytic filter plate under the irradiation of the three layers of ultraviolet lamps 8, and then discharged from the air outlet 9 to the required workshop.

[0030] The internal space is divided into four air chambers 7, forming a multi-stage treatment structure for air. The inner wall of each air chamber 7 is provided with an ultraviolet lamp 8 to provide the required energy for exciting the photocatalytic material. The fan provides the air flow power.

[0031] Combining the primary efficiency filtration and photocatalytic sterilization together can quickly and effectively filter out particulate matters in the air and kill bacteria in the air through photocatalytic action. The air can be purified and treated in a green and pollution-free manner, the contaminating bacteria that can cause disease problems of edible fungi are killed, and thus the disease problems in the process of planting edible fungi are reduced, which has very positive practical significance for the edible fungus production industry.

[0032] The above specific embodiments can be easily implemented by those skilled in the art. However, it should be understood that the present application is not limited to the above specific embodiments. On the basis of the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to realize different technical solutions. Due to the limited space and the simplicity of the description, each scheme formed by these combinations is not described one by one. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A photocatalytic air purification device, characterized by, The application relates to a photocatalytic filter plate air purifier, which comprises a shell, an air inlet, an air outlet, photocatalytic filter plates and a UV light lamp.

2. The photocatalytic air purification device according to claim 1, wherein The flanges comprise two flange plates and bolts, the two flange plates are respectively welded with two adjacent shell layers, and the two flange plates are fixedly connected through the bolts.

3. The photocatalytic air purification device according to claim 2, wherein The flange plate is provided with a sealing groove one close to the outer side and a sealing groove two close to the inner side, the sealing groove one and the sealing groove two are both provided with sealing rings, and the photocatalytic filter plates are arranged between the sealing rings of the sealing groove two of the oppositely arranged flange plates.

4. The photocatalytic air purification device according to claim 3, wherein The flange plate on the outer side of the sealing groove one is provided with mounting holes for connecting the bolts.

5. The photocatalytic air purification device according to claim 1, wherein The air inlet is connected with a dust filter screen.

6. The photocatalytic air purification device according to claim 1, wherein The air inlet is connected with a fan.

7. The photocatalytic air purification device according to claim 1, wherein The air outlet is connected with a workshop air vent.

8. The photocatalytic air purification device according to claim 1, wherein The photocatalytic filter plate comprises, from top to bottom, an upper layer support net, an upper layer melt-blown non-woven fabric filter screen, a coal-tar pitch-based spherical activated carbon photocatalyst composite material layer, a lower layer melt-blown non-woven fabric filter screen and a lower layer support net.

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