CN114508821A

CN114508821A - Photocatalyst purification device

Info

Publication number: CN114508821A
Application number: CN202210154924.1A
Authority: CN
Inventors: 金成琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2022-05-17

Abstract

The invention discloses a photocatalyst purification device which comprises a main box body, wherein an adjusting knob is arranged on one side of the outer wall of the main box body, an air inlet is formed in the outer wall of the main box body, which is positioned at the lower end of the adjusting knob, an upper cover plate is arranged at the top of the main box body, fixed blades are arranged in the upper cover plate, an air exhaust device is arranged at the bottom of the upper cover plate, a filtering device and a filtering device are arranged in the main box body, the filtering device comprises a first clamping ring, a second clamping ring and a second filter screen, a telescopic structure is arranged between the first clamping ring and the second clamping ring, and a photocatalyst structure is arranged in the second filter screen. This photocatalyst purification device is through setting up air exhaust device and filter equipment, when can reaching the indoor air purification efficiency of accelerating, reduces the influence of external dust to the catalysis process, improves the catalytic effect after using for a long time.

Description

Photocatalyst purification device

Technical Field

The invention relates to the technical field of air purification equipment, in particular to a photocatalyst purification device.

Background

The photocatalyst is a substance that does not change itself under irradiation of light but promotes a chemical reaction. The photocatalyst can activate oxygen and water adsorbed on the surface of the material under the irradiation of light to generate free hydroxyl and active oxygen with strong oxidizing capability, and the free hydroxyl and the active oxygen generate oxidation reaction so as to thoroughly decompose organic matters, bacteria, viruses and the like into carbon dioxide and water.

The photocatalyst air purification technology is an ideal technology for treating environmental pollution internationally at present. The key to the excellence of the photocatalyst purification effect is whether to increase the contact area between the polluted air and the photocatalyst to a greater extent and to ensure that the photocatalyst surface is irradiated with sufficient light to a greater extent. The photocatalyst may be not only a photocatalyst that is excited by irradiation with ultraviolet light but also a photocatalyst that is excited by irradiation with other light (for example, visible light).

In addition, the existing photocatalyst purification devices can be mainly classified into a single-channel type, a single-channel type extended surface type, a honeycomb channel superposition type and an extended light source type according to the structure. Hereinafter, each type of device will be briefly described.

(1) Single flow channel type

The single flow structure is a typical structure of a photocatalyst device. In the single-channel type photocatalyst device, only one channel is included, the wall surface of the channel is coated with a photocatalyst coating, and an ultraviolet lamp is arranged in the center of the channel to activate the photocatalyst to realize the photocatalytic oxidation reaction process.

Jinning et al, Shanghai science and technology, integrated primary filtration, high efficiency filtration, activated carbon filtration and photocatalytic filtration into one device for research. The structure of such an integrated apparatus 1A is shown in fig. 1. Air enters from the side wall 10A1 of the cylindrical tube 10A, and under the action of the fan 20A arranged inside, the air passes through the multiple layers of filter screens (the primary filter screen 30A, HEPA high-efficiency filter screen 40A and the activated carbon filter screen 50A) in sequence and reaches the inner layer of the filter screen 60A attached with the TiO2 (photocatalyst). Since the ultraviolet double tube 70A is disposed in the center of the cylindrical tube 10A of the integrated device 1A, the photocatalyst is in an excited state, and the polluted gas undergoes an oxidation-reduction reaction when passing through the photocatalyst, thereby achieving the process of air purification as a whole by using multiple filtration.

(2) Single-runner type extended surface type

As described above, since the single flow channel type photocatalyst apparatus has a small reaction area, in order to increase the reaction area between the polluted air and the photocatalyst, a single flow channel type extended surface structure is proposed, in which the single flow channel type extended surface structure is based on the single flow channel type structure, and adopts other types of carriers instead of a simple flow channel wall surface as an attachment surface of the photocatalyst. This increases the surface area of the photocatalyst, thereby enabling the reaction efficiency of the device to be improved.

However, the screen structure has limited area expansion and is not an ideal carrier format, resulting in a less efficient single pass reaction of the device. Therefore, the configuration of the mesh-type photocatalyst apparatus 1C shown in fig. 3 is only suitable for use in cases where the return air is repeated and the concentration of the contaminant gas is low.

However, the single-flow-channel type extended-surface photocatalyst devices in the above three cases all have the following disadvantages: air flowing in the flow passage is subject to a large flow resistance, and in the field of ventilation systems which are sensitive to flow resistance, such as ventilation systems of vehicles, the flow resistance requirement is likely not to be satisfied.

(3) Honeycomb runner stack formula

The honeycomb flow channel structure is the same as the expanding surface type structure, and is proposed for increasing the reaction surface. However, because the honeycomb flow channels are dense, an ultraviolet light source cannot be arranged in each flow channel, and therefore, only ultraviolet lamp tubes can be arranged at the inlet and the outlet of the channel. In addition, in consideration of the limitation of the irradiation range of light, the flow channel cannot be set too long, so that a so-called honeycomb flow channel overlapping type structure in which a short honeycomb flow channel structure is overlapped with an ultraviolet lamp appears.

Therefore, air purification equipment such as an air purifier, a fresh air fan and the like is rapidly developed, wherein the photocatalyst purifier has a particularly remarkable effect, but the existing photocatalyst purifier on the market still has the following defects; (1) in the existing photocatalyst purifier, the diffusion of the catalyzed strong oxidizing substance is slow, so that the purification time is too long and the time is wasted; (2) the existing photocatalyst purifier needs to be placed indoors for a long time, and when the photocatalyst purifier is used for a period of time, the surface of a catalytic medium can be stained with a large amount of dust, so that the subsequent catalytic efficiency is influenced.

Disclosure of Invention

The present invention is directed to a photocatalyst cleaning apparatus for solving the problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: photocatalyst purifier, including the main tank body, main tank body outer wall one side is provided with adjust knob, the main tank body outer wall is located the adjust knob lower extreme and has seted up the inlet port, the main tank body top is provided with the upper cover plate, the inside fixed blade that is provided with of upper cover plate, the upper cover plate bottom is provided with air exhaust device, the inside filter equipment that is provided with of main tank body, filter equipment includes first snap ring, second snap ring and second filter screen, be provided with extending structure between first snap ring and the second snap ring, the inside photocatalyst structure that is provided with of second filter screen.

As a preferred technical scheme, the air exhaust device comprises three groups of connecting blocks, driving motors, rotating shaft rods and fan blades, the connecting blocks are distributed in the connecting shell in a circular mode, and two ends of each connecting block are fixedly connected with the connecting shell and the driving motors respectively.

As a preferred technical scheme of the invention, two ends of the rotating shaft rod are respectively fixedly connected with the fan blades and the driving motor, the driving motor is electrically connected with the outside, and the driving motor is connected with the adjusting knob in series to play roles in circulating indoor air and enhancing the purification speed.

According to the preferable technical scheme, the telescopic structure comprises a first telescopic plate, a second telescopic plate, a fixing hole, a telescopic rod and a fixing head, the first telescopic plate is connected with the second telescopic plate in a sliding mode, the fixing head is semicircular, the outer diameter size of the fixing head is smaller than the inner diameter size of the fixing hole, a spring is sleeved on the outer wall of the telescopic rod, the first telescopic plate and the second telescopic plate can adjust the distance between the first clamping ring and the second clamping ring, the first filter screen and the second filter screen can be conveniently installed and detached, and the fixing hole, the telescopic rod and the fixing head can fix the first telescopic plate and the second telescopic plate.

As a preferred technical scheme of the invention, the filtering device further comprises a first filter screen, the first snap ring is fixedly connected with the first expansion plate, the second snap ring is fixedly connected with the second expansion plate, four groups of the first filter screens are distributed in the first snap ring and the second snap ring in a circular manner, the inner diameter sizes of the first snap ring and the second snap ring are matched with the outer diameter size of the second filter screen, and the first filter screen and the second filter screen can intercept the influence of external dust on the catalytic column when gas circulates, so that the catalytic effect is improved.

As a preferred technical scheme of the invention, the photocatalyst structure comprises a connecting ring, ultraviolet lamps, a fixing ring and a catalytic column, wherein the ultraviolet lamps are electrically connected with the outside, the ultraviolet lamps are distributed at the bottom of the connecting ring in a circular manner, the outer diameter size of the connecting ring is matched with the inner diameter size of the second filter screen, the catalytic column is fixedly connected with the connecting ring through the fixing ring, photocatalyst solutions are sprayed on the surface and the inside of the catalytic column, and the ultraviolet lamps and the catalytic column are matched for use to generate a large amount of substances with strong oxidizing property and further decompose harmful gases in air holes.

As a preferred technical scheme of the invention, a stirring device is arranged in the catalytic column, the stirring device comprises a driven rod, a sleeve ring and stirring blades, the outer diameter of the driven rod is matched with the inner diameter of the sleeve ring, the sleeve ring is fixedly connected with the driven rod, leak holes are formed in the stirring blades, the stirring blades are circularly distributed on the outer wall of the sleeve ring, and the stirring blades play a role in accelerating the decomposition efficiency of the solution in the catalytic column and improving the purification rate.

As a preferred technical scheme of the invention, the stirring device further comprises a sealing cover and four clamping blocks, the sealing cover is in threaded connection with the catalytic column, the clamping blocks are composed of spring rods and trapezoidal clamping heads, the driven rod is clamped with the fan blades through the clamping blocks, and the clamping blocks play a role in driving the driven rod to rotate by the fan blades so as to transmit kinetic energy to the stirring blades.

Compared with the prior art, the invention provides a photocatalyst purification device, which has the following beneficial effects:

1. this photocatalyst purification device, through setting up air exhaust device, filter equipment and extending structure, during the use, start driving motor, the axostylus axostyle drives the flabellum rotation this moment, the external gas passes the inlet port in proper order, first filter screen, second filter screen and fixed blade, realize the inside and outside air current circulation of purifier, simultaneously when gaseous when flowing through first filter screen and second filter screen, first filter screen and second filter screen will intercept external dust, after using a terminal time, the main tank body is opened to the accessible upper cover plate, through the extrusion fixed head this moment, make the second expansion plate slide in first expansion plate is inside, shorten the interval of first snap ring and second snap ring, make things convenient for the installation and the change of first filter screen and second filter screen, reduce the influence of external dust to the catalysis post, improve catalyzed effect.

2. This photocatalyst purification device, through setting up photocatalyst structure and agitating unit, be in when rotatory when the flabellum during the use, driven lever and stirring vane are under the drive of flabellum this moment, inside rotation at the catalysis post, and then improve the catalytic effect of ultraviolet lamp to the inside solution of catalysis post, the user can open the ultraviolet lamp simultaneously, the ultraviolet lamp shines the catalysis post, make the catalysis post produce a large amount of strong oxidizing substance, and strong oxidizing substance is at indoor diffusion fast under the drive of air current, the diffusion efficiency of strong oxidizing substance has been accelerated, the speed of purification has been improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall internal structure of the present invention;

FIG. 3 is a schematic view of the structure of the filtering apparatus of the present invention;

FIG. 4 is a schematic view of the telescopic structure of the present invention;

FIG. 5 is a schematic view of the structure of a photocatalyst according to the present invention;

FIG. 6 is a schematic view of the structure of the air extractor of the present invention;

FIG. 7 is a schematic view of the stirring device of the present invention.

In the figure: 1. a main box body; 2. adjusting a knob; 3. an air inlet; 4. an upper cover plate; 5. a fixed blade; 6. an air extraction device; 601. a connecting shell; 602. connecting blocks; 603. a drive motor; 604. a spindle rod; 605. a fan blade; 7. a filtration device; 701. a first snap ring; 702. a second snap ring; 703. a first filter screen; 704. a second filter screen; 8. a photocatalyst structure; 801. a connecting ring; 802. an ultraviolet lamp; 803. a fixing ring; 804. a catalytic column; 9. a telescopic structure; 901. a first expansion plate; 902. a second expansion plate; 903. a fixing hole; 904. a telescopic rod; 905. a fixed head; 10. a stirring device; 1001. a driven lever; 1002. a collar; 1003. a stirring blade; 1004. a sealing cover; 1005. and (7) clamping blocks.

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 making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-7, a photocatalyst purification device comprises a main box body 1, an adjusting knob 2 is arranged on one side of the outer wall of the main box body 1, an air inlet 3 is formed in the outer wall of the main box body 1 and is positioned at the lower end of the adjusting knob 2, an upper cover plate 4 is arranged at the top of the main box body 1, fixed blades 5 are arranged in the upper cover plate 4, an air extractor 6 is arranged at the bottom of the upper cover plate 4, the air extractor 6 comprises a connecting shell 601, connecting blocks 602, a driving motor 603, rotating shaft rods 604 and fan blades 605, the connecting blocks 602 are three groups, the connecting blocks 602 are circularly distributed in the connecting shell 601, and two ends of the connecting blocks 602 are fixedly connected with the connecting shell 601 and the driving motor 603 respectively; the both ends of pivot pole 604 respectively with flabellum 605 and driving motor 603 fixed connection, driving motor 603 and external electric connection, driving motor 603 and adjust knob 2 are established ties, play the circulation of indoor gas, strengthen the effect of purification rate.

Referring to fig. 5, a photocatalyst structure 8 is disposed inside the second filter screen 704, the photocatalyst structure 8 includes a connection ring 801, ultraviolet lamps 802, a fixing ring 803 and a catalytic column 804, the ultraviolet lamps 802 are electrically connected with the outside, the ultraviolet lamps 802 are distributed in a circular shape at the bottom of the connection ring 801, the outer diameter of the connection ring 801 is matched with the inner diameter of the second filter screen 704, the catalytic column 804 is fixedly connected with the connection ring 801 through the fixing ring 803, photocatalyst solution is sprayed on the surface and inside of the catalytic column 804, and the ultraviolet lamps 802 and the catalytic column 804 are used in cooperation to generate a large amount of substances with strong oxidizing property, so as to decompose harmful gases in the air holes.

Referring to fig. 7, a stirring device 10 is arranged inside a catalytic column 804, the stirring device 10 includes a driven rod 1001, a collar 1002 and stirring blades 1003, the outer diameter of the driven rod 1001 is matched with the inner diameter of the collar 1002, the collar 1002 is fixedly connected with the driven rod 1001, leak holes are formed inside the stirring blades 1003, the stirring blades 1003 are circularly distributed on the outer wall of the collar 1002, and the stirring blades 1003 play a role in accelerating the decomposition efficiency of the solution inside the catalytic column 804 and improving the purification rate; the stirring device 10 further comprises a sealing cover 1004 and fixture blocks 1005, the sealing cover 1004 and the catalytic column 804 are in threaded connection, the number of the fixture blocks 1005 is four, the fixture blocks 1005 are composed of spring rods and trapezoidal chucks, the driven rod 1001 is clamped with the fan blade 605 through the fixture blocks 1005, and the fixture blocks 1005 play a role in that the fan blade 605 drives the driven rod 1001 to rotate so as to transmit kinetic energy to the stirring blade 1003.

Example two:

referring to fig. 3, on the basis of the first embodiment, a filtering device 7 is disposed inside the main box 1, the filtering device 7 further includes a first filter screen 703, the first snap ring 701 is fixedly connected to the first expansion plate 901, the second snap ring 702 is fixedly connected to the second expansion plate 902, four groups of the first filter screens 703 are circularly distributed inside the first snap ring 701 and the second snap ring 702, the inner diameter of the first snap ring 701 and the inner diameter of the second snap ring 702 are matched with the outer diameter of the second filter screen 704, and when the first filter screen 703 and the second filter screen 704 circulate air, the influence of external dust on the catalytic column 804 is intercepted, and the catalytic effect is improved.

Please refer to fig. 4, a filtering apparatus 7, the filtering apparatus 7 includes a first snap ring 701, a second snap ring 702 and a second filter net 704, an extension structure 9 is disposed between the first snap ring 701 and the second snap ring 702, the extension structure 9 includes a first extension plate 901, a second extension plate 902, a fixing hole 903, an extension rod 904 and a fixing head 905, the first extension plate 901 is slidably connected to the second extension plate 902, the fixing head 905 is semicircular and has an outer diameter smaller than the inner diameter of the fixing hole 903, a spring is sleeved on the outer wall of the extension rod 904, the first extension plate 901 and the second extension plate 902 adjust the distance between the first snap ring 701 and the second snap ring 702, the first filter net and the second filter net 704 are convenient to mount and dismount, and the fixing hole 903, the extension rod 904 and the fixing head 905 play a role in fixing the first extension plate 901 and the second extension plate 902.

The working principle and the using process of the invention are as follows: when the photocatalyst purification device is used, the driving motor 603 is started, the rotating shaft rod 604 drives the fan blade 605 to rotate at the moment, the external air sequentially passes through the air inlet hole 3, the first filter screen 703, the second filter screen 704 and the fixed blade 5, the circulation of the air flow inside and outside the purification device is realized, meanwhile, when the air flows through the first filter screen 703 and the second filter screen 704, the first filter screen 703 and the second filter screen 704 intercept the external dust, after a period of use, the main box body 1 can be opened through the upper cover plate 4, at the moment, the second expansion plate 902 slides inside the first expansion plate 901 by extruding the fixing head 905, the distance between the first snap ring 701 and the second snap ring 702 is shortened, the installation and the replacement of the first filter screen 703 and the second filter screen 704 are convenient, the influence of the external dust on the catalytic column 804 is reduced, the catalytic effect is improved, and when the fan blade 605 rotates, the driven rod 1001 and the stirring blade 1003 are driven by the fan blade 605, at the inside rotation of catalysis post 804, and then improve the catalytic effect of ultraviolet lamp 802 to the inside solution of catalysis post 804, the user can open ultraviolet lamp 802 simultaneously, and ultraviolet lamp 802 shines catalysis post 804, makes catalysis post 804 produce a large amount of strong oxidizing substance, and strong oxidizing substance is quick indoor diffusion under the drive of air current for the diffusion efficiency of strong oxidizing substance, improved the purification rate of room air.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Photocatalyst purifier, its characterized in that: including the main tank body (1), main tank body (1) outer wall one side is provided with adjust knob (2), main tank body (1) outer wall is located adjust knob (2) lower extreme and has seted up inlet port (3), main tank body (1) top is provided with upper cover plate (4), upper cover plate (4) inside is provided with fixed blade (5), upper cover plate (4) bottom is provided with air exhaust device (6), inside filter equipment (7) that is provided with of main tank body (1), filter equipment (7) include first snap ring (701), second snap ring (702) and second filter screen (704), be provided with extending structure (9) between first snap ring (701) and second snap ring (702), second filter screen (704) inside is provided with photocatalyst structure (8).

2. The photocatalyst cleaning device according to claim 1, wherein: the air exhaust device (6) comprises a connecting shell (601), connecting blocks (602), driving motors (603), rotating shaft rods (604) and fan blades (605), the number of the connecting blocks (602) is three, the connecting blocks (602) are circularly distributed in the connecting shell (601), and two ends of each connecting block (602) are fixedly connected with the connecting shell (601) and the driving motors (603) respectively.

3. The photocatalyst cleaning device according to claim 2, wherein: two ends of the rotating shaft rod (604) are fixedly connected with the fan blades (605) and the driving motor (603) respectively, the driving motor (603) is electrically connected with the outside, and the driving motor (603) is connected with the adjusting knob (2) in series.

4. The photocatalyst cleaning device according to claim 1, wherein: extending structure (9) include first expansion plate (901), second expansion plate (902), fixed orifices (903), telescopic link (904) and fixed head (905), first expansion plate (901) and second expansion plate (902) sliding connection, fixed head (905) are semi-circular and external diameter size is less than the internal diameter size of fixed orifices (903), telescopic link (904) outer wall cover is equipped with the spring.

5. The photocatalyst cleaning device according to claim 4, wherein: the filter device (7) further comprises a first filter screen (703), the first snap ring (701) is fixedly connected with the first expansion plate (901), the second snap ring (702) is fixedly connected with the second expansion plate (902), the four groups of the first filter screen (703) are distributed in a circular mode inside the first snap ring (701) and the second snap ring (702), and the inner diameter of the first snap ring (701) and the inner diameter of the second snap ring (702) are matched with the outer diameter of the second filter screen (704).

6. The photocatalyst cleaning device according to claim 1, wherein: photocatalyst structure (8) are including go-between (801), ultraviolet lamp (802), solid fixed ring (803) and catalysis post (804), ultraviolet lamp (802) and external electric connection, ultraviolet lamp (802) are in go-between (801) bottom circular distribution, the external diameter size of go-between (801) and the internal diameter size phase-match of second filter screen (704), catalysis post (804) are through solid fixed ring (803) and go-between (801) fixed connection, catalysis post (804) surface and inside all spraying have photocatalyst solution.

7. The photocatalyst cleaning device according to claim 6, wherein: the inside agitating unit (10) that is provided with of catalysis post (804), agitating unit (10) are including driven lever (1001), lantern ring (1002) and stirring vane (1003), the external diameter size of driven lever (1001) and the internal diameter size phase-match of lantern ring (1002), lantern ring (1002) and driven lever (1001) fixed connection, the weeping hole has been seted up to stirring vane (1003) inside, and stirring vane (1003) are at lantern ring (1002) outer wall circular distribution.

8. The photocatalyst cleaning device according to claim 2 or 7, characterized in that: the stirring device (10) further comprises sealing covers (1004) and clamping blocks (1005), the sealing covers (1004) are in threaded connection with the catalytic column (804), the number of the clamping blocks (1005) is four, the clamping blocks (1005) are composed of spring rods and trapezoidal clamping heads, and the driven rod (1001) is clamped with the fan blades (605) through the clamping blocks (1005).

9. The photocatalyst cleaning device according to claim 1, wherein: a photocatalyst bag is also arranged in the main box body (1).

10. The photocatalyst purification device according to any one of claims 1 to 9, wherein the photocatalyst purification device comprises: starting a driving motor (603), at the moment, a rotating shaft rod (604) drives a fan blade (605) to rotate, external gas sequentially passes through an air inlet hole (3), a first filter screen (703), a second filter screen (704) and a fixed blade (5) to be purified, at the moment, a user can open an ultraviolet lamp (802), the ultraviolet lamp (802) irradiates a catalytic column (804), so that the catalytic column (804) generates a large amount of strong oxidizing substances, the strong oxidizing substances are rapidly diffused indoors under the driving of air flow, the purification efficiency of indoor air is improved, meanwhile, when the gas flows through the first filter screen (703) and the second filter screen (704), the first filter screen (703) and the second filter screen (704) intercept external dust, after one end of use, the main box body (1) can be opened through an upper cover plate (4), at the moment, a fixing head (905) is extruded, so that the second expansion plate (902) slides inside the first expansion plate (901), shorten the interval of first snap ring (701) and second snap ring (702), make things convenient for the installation and the change of first filter screen (703) and second filter screen (704), reduce the influence of external dust to catalysis post (804), improve catalyzed effect.