TWI768587B - Photocatalyst air purification device - Google Patents

Abstract

A photocatalyst air purification device has a box body, a first tube body, an ultraviolet module and a fan are arranged inside, the first tube body has a second tube body, and is filled with a plurality of light-transmitting inorganic substances, and the inner wall of the first tube is , The outer wall of the second tube and the inorganic surface are provided with first and second photocatalyst layers, and the ultraviolet lamp tube of the ultraviolet module is sleeved in the second tube body; It is projected onto inorganic substances, and then generates a large amount of refraction and reflection through inorganic substances, which can increase the contact area between ultraviolet rays and the first and second photocatalyst layers; after the fan is activated, the gas outside the box enters the first tube through the air inlet, so that the gas can contact the photocatalyst. layer, resulting in the oxidative degradation, or reduction, of organic substances in the gas.

Description

Photocatalyst air purification device

The present invention relates to an air purifying device, in particular to a photocatalyst air purifying device that can improve the coverage of the UV-excited photocatalyst coating and increase the contact area between the gas and the photocatalyst, thereby improving the oxidative degradation of the photocatalyst and reducing the organic matter in the gas.

There are quite a variety of technical means to purify water or air. In recent years, a very popular technology is the use of photocatalyst. Photocatalyst is a kind of "catalyst that uses light energy to carry out catalytic reactions". Before use, it will be coated or sprayed on the surface of the object to form a layer of film, and then activated by light energy (such as ultraviolet rays) to produce oxidative degradation or reduction with foreign substances attached to the surface of the object to achieve decontamination, The purpose of bactericidal, bacteriostatic or surface cleaning.

For example, the Mainland Patent Bulletin No. CN111359600A "Spherical No. for Wastewater and Wastewater Pollutant Treatment with Composite Modified Nano-TiO2", this patent has a porous sphere, and the surface and pores are coated with composite modified nano-TiO2 and plant-extracted photosensitizers or strong Oxidants, however, photocatalysts require high-energy light to continuously stimulate and generate reactions. Therefore, the method of using natural light in this patent cannot actually stimulate the photocatalyst reactions effectively.

Another example is the Republic of China Patent Announcement No. M359368 "New Structure of Photooxidation Tank", which fills the first tube body (AFP tube, quartz tube, or Teflon tube) with TiO2 nano-photocatalyst glass balls, and the first tube is outside the body. Set up a plurality of ultraviolet lamps; this patent is to purify the organic substances in the water, so the ultraviolet lamps cannot be installed in the first tube body, and at the same time, the ultraviolet rays emitted by the ultraviolet lamps will generate the first tube after passing through the first tube body. A reflection, refraction, and then through the water to be purified, TiO2 nanometer light touch If the medium glass ball is used, the ultraviolet light generated by the left ultraviolet lamp tube reaches the right side of the first tube body, it is already the ultraviolet light after multiple refraction, which has caused quite serious attenuation and loss. The TiO2 nano-photocatalyst glass ball can be irradiated with ultraviolet rays, and it is necessary to set up multiple ultraviolet lamps around the first tube body, which not only greatly increases the cost, but also leads to a large amount of power consumption.

In addition to the above patents, although photocatalyst is used as a means to further purify the air in the current air cleaning devices, there are problems such as short contact time and insufficient contact area between the air and the photocatalyst layer, which leads to the benefits of photocatalyst purification. Very poor.

In view of the above-mentioned disadvantages of the conventional method, the inventors have studied and improved the method for the above-mentioned disadvantages, and finally the present invention is produced.

The main object of the present invention is to provide a photocatalyst air purifying device which can improve the coverage when the photocatalyst is excited by ultraviolet rays.

The secondary objective of the present invention is to provide a photocatalyst air purification device which increases the contact area between the gas and the photocatalyst.

Another object of the present invention is to provide a photocatalyst air purification device that improves the evolution efficiency of photocatalyst gas.

Another object of the present invention is to provide a photocatalyst air purification device that utilizes gas to absorb water vapor and can generate hydroxyl radicals with the photocatalyst.

Another object of the present invention is to provide a photocatalyst air purification device that can be easily disassembled and washed with water.

In order to achieve the above purpose and effect, the technical means adopted in the present invention include: a box body, a first pipe body, a plurality of inorganic substances, an ultraviolet module, and a fan, wherein: One end of the box body is provided with an air inlet, the other end is provided with an exhaust port, and an accommodating space communicated with the outside is provided inside.

The first pipe body is connected in the accommodating space of the box body, and a first mesh plate is arranged at one end corresponding to the air inlet, and a second mesh plate is arranged at the other end corresponding to the air outlet. A mesh plate, a second tube body that can transmit light is connected between the first mesh plate and the second mesh plate, and the inner wall of the first tube and the outer wall of the second tube are respectively provided with a first a photocatalyst layer; the inorganic substance is made of a light-transmitting material, a second photocatalyst layer is arranged on the surface, and is filled in the first tube body, and a plurality of air gaps are formed between the inorganic substances; the ultraviolet module has an ultraviolet lamp tube and a power module are electrically connected to each other, the ultraviolet lamp tube is sleeved in the second tube body of the first tube body, and the power module is connected to the inner wall of the box; and , a fan, connected in the box body and between the exhaust port, and electrically connected with the power module.

In this way, the ultraviolet lamp tube generates ultraviolet rays, which are projected onto the inorganic substances through the second tube body, and then generate a large amount of refraction and reflection through the inorganic substances, which can increase the contact between the ultraviolet rays and the first photocatalyst layer and the second photocatalyst layer. Contact area; after the fan is activated, the gas outside the box enters the first tube body through the air inlet, so that the gas contacts the first photocatalyst layer and the second photocatalyst layer, causing organic substances in the gas the oxidized or reduced structure.

According to the above structure, the box body has two corresponding combinations of a first shell and a second shell, wherein: the first shell has a first base plate, and a first side plate extends from both sides, the The side edge of the first side plate has a first connecting portion; and, The second casing has a second base plate, a second side plate extends from two sides respectively, and the side edge of the second side plate has a second connecting portion; the first casing is butted with the second casing, The first side plate and the second side plate are alternately connected, and the first connecting portion is combined with the second connecting portion, so that the air intake is defined between the first substrate and the second side plate and the exhaust port is defined between the second base plate and the first side plate.

According to the above structure, the first pipe body at least includes: an air inlet section, which is arranged on one side of the first pipe body and expands outward, and corresponds to the air inlet; and, an exhaust section, It is arranged on the other side of the first pipe body and expands outward, and corresponds to the exhaust port.

According to the above structure, a fixing plate is respectively extended from both ends of the first pipe body, and the fixing plate is connected to the inner wall of the box.

According to the above structure, wherein the first mesh plate comprises: a first fixing piece with a first perforation in the center, and a plurality of first ribs arranged radially, with a hollow structure between the first ribs; and, a net The sheet is stacked on the first fixing sheet, and has a second through hole coaxially arranged with the first through hole, and has a second rib corresponding to the first rib, and the second rib is arranged in a grid.

According to the above structure, it at least includes: a filter screen inserted in the air inlet of the box, and the filter screen can be an activated carbon filter screen, a HEAP (High-Efficiency Particulate Air) filter screen, an electrostatic filter screen , or a composite filter.

According to the above structure, it at least includes: a water container connected to the inner wall of the box, the water container has a pipe joint and a filling part, one end of the pipe joint is provided with a porous ceramic sheet, and extends to the inside the box, and between the air inlet and the first mesh plate of the first pipe body; The water in the water container penetrates into the porous ceramic sheet through the pipe joint, so that after the gas outside the box passes through the air inlet, the gas adsorbs the water vapor permeating the surface of the porous ceramic sheet to achieve gas. Contacting the photocatalyst layer causes water vapor and the photocatalyst layer to increase the structure of generating hydroxyl radicals.

According to the above structure, the water container can be a disc-shaped, a dish-shaped, or a box body with an opening, and is arranged at the air inlet of the first box body.

According to the above structure, the fan can be an axial fan or a centrifugal fan.

According to the above structure, the fan is arranged outside the box, and a ventilation pipe is further connected with the box.

In order to obtain a more specific understanding of the above-mentioned objects, effects and features of the present invention, the descriptions are as follows according to the accompanying drawings:

1: Box

10: Accommodating space

11: Air intake

12: exhaust port

13: The first shell

131: The first substrate

132: First side panel

133: The first connection part

14: Second shell

141: Second substrate

142: Second side panel

143: Second connector

2: The first tube body

21: The first stencil

211: The first fixed piece

2111: First Perforation

2112: First Rib

212: Mesh

2121: Second perforation

2122: Second Rib

22: Second stencil

23: Second body

24: Intake section

25: Exhaust section

26: Fixed plate

3: The first photocatalyst layer

4: Inorganic

40: the second photocatalyst layer

41: Air gap

5: UV module

51: UV lamp tube

52: Power Module

53: Ultraviolet

6: Fan

7: Filter

8: Container

8': water container

81: pipe joint

82: Porous ceramic sheet

83: Filler

9: Ventilation pipe

[FIG. 1] is a perspective view of the first preferred embodiment of the present invention.

[Fig. 2] is a perspective exploded view 1 of the first preferred embodiment of the present invention.

[Fig. 3] is a second exploded perspective view of the first preferred embodiment of the present invention.

[FIG. 4] is a perspective cross-sectional view of the first preferred embodiment of the present invention.

[FIG. 5] is a schematic diagram of gas flow according to the first preferred embodiment of the present invention.

[FIG. 6] is a schematic diagram of the second preferred embodiment of the present invention applied to the air outlet of an air-conditioning duct.

[FIG. 7] is a perspective cross-sectional view of the third preferred embodiment of [FIG. 4].

1 to 3, it can be seen that the structure of the present invention mainly includes: a box body 1, a first pipe body 2, a plurality of inorganic substances 4, an ultraviolet module 5, and a fan 6, wherein: the said One end of the box body 1 has an air inlet 11, the other end has an exhaust port 12, and the inside has an accommodating space 10 that communicates with the outside. It should be noted that the inside of the box body 1 is hollow and can be polygonal, and has A cover plate that can be separated and closed from the box body 1, or the box body 1 is formed by butting two symmetrically shaped shells, such as U-shaped, C-shaped, approximately C-shaped, etc. In this embodiment, the box body 1 has two corresponding combinations of a first shell 13 and a second shell 14, wherein: the first shell 13 has a first base plate 131, two sides respectively extend a first side plate 132, the side edge of the first side plate 132 A first connecting portion 133 extends; the second casing 14 has a second base plate 141 , a second side plate 142 extends from both sides respectively, and a second connecting portion 143 extends from the side edge of the second side plate 142 ; the first casing 13 and The second casing 14 is butted, so that the first side plate 132 and the second side plate 142 are connected alternately, and the first connecting portion 133 is combined with the second connecting portion 143 , so that an intake air is formed between the first substrate 131 and the second connecting portion 143 The port 11 and the exhaust port 12 are formed between the second substrate 141 and the first connecting portion 133 .

The first pipe body 2 is connected in the accommodating space 10 of the box body 1 , and a second mesh plate 22 is provided at one end corresponding to the air inlet 11 , and a first mesh plate 22 is provided at the other end corresponding to the exhaust port 12 . The mesh plate 21, the first mesh plate 21 and the second mesh plate 22 are connected with a second tube body 23 that can transmit light, and a first photocatalyst layer is provided on the inner wall of the first tube body 2 and the outer wall of the second tube body 23 3; It is further explained that, in order to increase the flow rate of the gas, one side of the first pipe body 2 is provided with an air inlet section 24 corresponding to the air inlet 11, and the other side is provided with an air inlet section 24 corresponding to the air outlet 12. An exhaust section 25 is formed, and both the intake section 24 and the exhaust section 25 expand to the two outer ends along the first pipe body 2; 26 is slidably inserted into the inner wall of the box body 1, and the first pipe body 2 is arranged on the box body 2 It should be noted that the box body 1 in this embodiment is represented by the mutual docking of the first shell 13 and the second shell 14. Therefore, the fixing plates 26 at both ends of the first pipe body 2 can be It is connected between the first side plates 132 adjacent to the first casing 13, or between the second side plates 142 adjacent to the second casing 14; it should be noted that in a preferred embodiment, because The two ends of the first pipe body 2 are respectively provided with an intake section 24 and an exhaust section 25 , and the fixing plate 26 may be disposed at the openings of the intake section 24 and the exhaust section 25 .

It should be noted that the first mesh plate 21 may be an integrally formed structure, or a plurality of layers may be combined into one. In a preferred embodiment, the multi-layer structure of the first mesh plate 21 includes: a first fixing piece 211 , and a mesh sheet 212, wherein: a first fixing sheet 211 with a first perforation 2111 in the center, and a plurality of first ribs 2112 arranged radially, and a hollow structure between the first ribs 2112; and, A mesh sheet 212 is stacked on the first fixing sheet 211 and has a second perforation 2121 coaxially arranged with the first perforation 2111, and has a second rib 2122 corresponding to the first rib 2112. The second rib 2122 in a net-like structure.

The inorganic substances 4 are particles made of light-transmitting materials, which can be regular-shaped particles or irregular-shaped particles. A second photocatalyst layer 40 is provided on the surface and filled in the first tube body 2 and the second tube body. 23, and a plurality of air gaps 41 are formed between the stacked inorganic substances 4 (see the enlarged view of FIG. 5).

The UV module 5 has a UV lamp 51 and a power module 52 that are electrically connected to each other. The UV lamp 51 is sleeved in the second tube 23 of the first tube 2, and the power module 52 is connected to each other. The inner wall of the box body 1 extends to the outside for electrical connection; and, the fan 6 is connected in the box body 1 and is located at the exhaust port 12, and is electrically connected with the power module 52; it should be noted that, The box 1 in this embodiment is represented by the first shell 13 and the second shell 14 being butted against each other. Therefore, the fan 6 can be connected between the first side plates 132 of the first shell 13, or connected to the second shell 13. Between the second side plates 142 of the housing 14, and the fan 6 may be an axial fan or a centrifugal fan.

Thereby (please refer to FIG. 4 and FIG. 5 together), the ultraviolet lamp 51 generates ultraviolet rays 53, which penetrate the second tube body 23 and then project to the inorganic substance 4, and then generate a large amount of mutual refraction and reflection through the inorganic substance 4, which can be indicated by arrows. The contact area between the ultraviolet rays 53 and the first photocatalyst layer 3 and the second photocatalyst layer 40; after the fan 6 is activated, the gas outside the box 1 enters the first pipe body 2 through the air inlet 11, and the gas contacts the first photocatalyst layer. 3. With the second photocatalyst layer 40, the structure of inducing oxidative degradation or reduction of organic substances in the gas.

Furthermore, after a long time of use, the user can easily remove the first tube body 2 from the box body 1, and at the same time, take out the ultraviolet lamp 51 from the first tube body 2, and then rinse the first tube with clean water. The body 2 , the second tube body 23 and a plurality of stacked inorganic substances 4 are arranged therebetween, and clean the dust and dirt on the surface of the inorganic substances 4 with clean water, so as to restore the use effect of the inorganic substances 4 in the first tube body 2 .

Referring to FIG. 2, this embodiment further includes: a filter screen 7, and a water container 8, wherein: the filter screen 7 is inserted in the air inlet 11 of the box body 1, and the filter screen 7 can be activated carbon Filter, HEAP (High-Efficiency Particulate Air) filter, electrostatic filter, or composite filter.

The water container 8 is connected to the inner wall of the box body 1, and has a pipe joint 81 and a filling part 83. One end of the pipe joint 81 is connected to a porous ceramic sheet 82, and extends into the box body 1, and is interposed therebetween. Between the air inlet 11 and the second mesh plate 22 of the first pipe body 2, in this embodiment, the pipe joint 81 is connected to the porous ceramic sheet 82 after penetrating the air inlet section 24 of the first pipe body 2; The water in the water container 8 penetrates into the porous ceramic sheet 82 through the pipe joint 81 , and after the gas outside the box 1 passes through the air inlet 11 , the gas will absorb the moisture on the surface of the porous ceramic sheet 82 , so that the gas contacts the photocatalyst layer 40 . , to induce a structure in which water vapor and the first photocatalyst layer 3 and the second photocatalyst layer 40 generate hydroxyl radicals.

It should be noted that, in this embodiment, since the air inlet 11 is formed between the first substrate 131 and the second connecting portion 143 , the filter screen 7 and the water container 8 are connected to the first connection of the first casing 13 . part 133 between the inner side walls.

Please refer to FIG. 6 . Compared with the first preferred embodiment, the second preferred embodiment is characterized in that: the box body 1 is arranged on the air-conditioning air outlet ventilation duct 9 (or the vehicle air-conditioning air outlet), then the fan in FIG. 2 6 can be separately arranged on the outside of the box 1, or the fan 6 can be replaced by the ventilation pipe 9 in the gas pipeline and the exhaust device, and a filter screen 7 can be installed in the corresponding position of the box 1 to form an equivalent structure. .

Please refer to FIG. 7 . Compared with the first preferred embodiment, the third preferred embodiment is characterized in that: the water container 8 ′ is a water container with an opening, and can be connected to or placed on the air intake of the box 1 . At the port 11, in this embodiment, the container 8' is placed or connected to the first base plate 131 of the first housing 13. After the water container 8' contains water, the gas passes through the air inlet 11 and will be adsorbed. The volatilized and lifted water vapor in the container 8 ′ achieves a structure in which the gas contacts the first photocatalyst layer 3 and the second photocatalyst layer 40 , causing the water vapor and the first photocatalyst layer 3 and the second photocatalyst layer 40 to generate a structure of degrading hydroxyl radicals .

To sum up the above, the photocatalyst air purification device of the present invention is a novel and progressive invention, and an application for an invention patent shall be filed in accordance with the law; however, the content of the above description is only the description of the preferred embodiment of the present invention. Variations, modifications, changes or equivalent substitutions extended by the technical means and scope of the present invention shall also fall within the scope of the patent application of the present invention.

1: Box

13: The first shell

131: The first substrate

132: First side panel

133: The first connection part

14: Second shell

141: Second substrate

142: Second side panel

143: Second connector

2: The first tube body

24: Intake section

25: Exhaust section

26: Fixed plate

5: UV module

51: UV lamp tube

52: Power Module

6: Fan

7: Filter

8: Water container

81: pipe joint

82: Porous ceramic sheet

83: Filler

Claims (8)

A photocatalyst air purification device, which at least comprises: a box body, one end has an air inlet, the other end has an exhaust port, and the inside has an accommodating space that communicates with the outside, the box body has two corresponding combinations of a first A casing and a second casing, wherein: the first casing has a first base plate, a first side plate extends from two sides respectively, and a first connecting portion extends from the side edge of the first side plate; the second The casing has a second base plate, a second side plate extends from two sides respectively, and a second connecting portion extends from the side edge of the second side plate; the first casing is butted with the second casing, so that the first casing One side plate and the second side plate are alternately connected, so that the first connecting portion is combined with the second connecting portion, and the air inlet is formed between the first substrate and the second connecting portion; and, The exhaust port is formed between the second base plate and the first connecting part; a first pipe body is connected in the accommodating space of the box body, and one end corresponding to the air inlet is provided with a The first mesh plate has a second mesh plate at the other end corresponding to the exhaust port, and a second tube body that can transmit light is connected between the first mesh plate and the second mesh plate, and The inner wall of the first tube and the outer wall of the second tube are respectively provided with a first photocatalyst layer; a plurality of light-transmitting inorganic materials are provided with a second photocatalyst layer on the surface, and are filled in the first tube body, and A plurality of air gaps are formed between the inorganic substances; a UV module has a UV lamp tube and a power module that are electrically connected to each other, and the UV lamp tube is sleeved on the second tube of the first tube body inside the box, and the power module is connected to the inner wall of the box; and a fan is connected to the box and is located at the exhaust port, and is electrically connected to the power module; The ultraviolet lamp tube generates ultraviolet rays, which are transmitted through the second tube body and projected to the inorganic substances, and then generate a large amount of refraction and reflection through the inorganic substances, which can increase the contact area of the ultraviolet rays with the first photocatalyst layer and the second photocatalyst layer. ; After the fan is actuated, the gas outside the box enters the first tube body through the air inlet, so that the gas contacts the first photocatalyst layer and the second photocatalyst layer, causing the oxidative degradation of organic substances in the gas , or the reduced structure. The photocatalyst air purification device according to claim 1, wherein the first pipe body at least comprises: an air intake section, which is arranged on one side of the first pipe body and expands outward, and corresponds to the air intake port and, an exhaust section, which is arranged on the other side of the first pipe body and expands outward, and corresponds to the exhaust port. The photocatalyst air purification device according to claim 1, wherein two ends of the first pipe body are respectively extended with a fixing plate, and the fixing plate is connected to the inner wall of the box. The photocatalyst air purifying device as claimed in claim 1, wherein the first screen plate comprises: a first fixing plate with a first perforation in the center and a plurality of first ribs arranged radially, the first ribs There is a hollow structure in between; and, a mesh sheet is stacked on the first fixing sheet, and has a second perforation coaxially arranged with the first perforation inside, and has a corresponding to the first rib. The second ribs are in a net-like structure between the second ribs. The photocatalyst air purification device according to claim 1, which at least comprises: a filter screen inserted in the air inlet of the box body, and the filter screen can be an activated carbon filter screen, a HEAP (High-Efficiency Particulate Filter) Air) filter, electrostatic filter, or composite filter. The photocatalyst air purification device according to claim 1, which at least comprises: a water container, which is connected to the inner wall of the box, and has a pipe joint and a filling part, and one end of the pipe joint is connected with a multi-hole The ceramic sheet extends into the box, and is interposed between the air inlet and the first mesh plate of the first pipe body; the water in the water container penetrates into the multi-layer through the pipe joint. Porous ceramic sheet, so that after the gas outside the box passes through the air inlet, the gas adsorbs the moisture volatilized on the surface of the porous ceramic sheet, so that the gas contacts the photocatalyst layer, causing the generation of moisture and the photocatalyst layer Degrade the structure of hydroxyl radicals. The photocatalyst air purification device according to claim 7, wherein the water container is a disc-shaped, dish-shaped, or a box body with an opening, and is arranged at the air inlet of the first box body. The photocatalyst air purification device according to claim 1, wherein the fan can be an axial fan or a centrifugal fan.

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