Multistage formaldehyde removing device based on photocatalyst

Abstract

The utility model relates to the technical field of formaldehyde removal, and discloses a photocatalyst-based multi-stage formaldehyde removal device which comprises a treatment box, a filter window is arranged on one side of the treatment box, a filter screen is mounted in the treatment box, two sliding columns are fixedly connected to the upper portions of the two sides of the filter screen, springs are mounted on the outer walls of the sliding columns, and the outer walls of the sliding columns are fixedly connected with the filter screen. One ends of the springs are fixedly connected to the upper portions of the two sides of the filter screen, and mounting blocks are mounted on the upper portions of the two sides of the filter screen. According to the utility model, the pushing block is pushed to enable the mounting block to slide on the sliding column, the spring is compressed, and the two fixing blocks are driven to be close to each other, so that the fixing blocks can be separated from the first mounting groove, and the fixing blocks can be reset to enter the first mounting groove under the action of the spring when the pushing block is loosened; therefore, the filter screen can be quickly disassembled and assembled, the filter screen can be conveniently cleaned, and the working efficiency and the performance stability of device operation are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of formaldehyde removal, in particular to a multi-stage formaldehyde removal device based on photocatalyst. Background Art

[0002] Formaldehyde, with the chemical formula CH2O, is a colorless gas with a pungent odor. It is widely used in the fields of chemical industry, disinfection, and antiseptic. However, formaldehyde is also a carcinogen. Long-term exposure will increase the risk of leukemia and other cancers, and may also cause symptoms such as headaches and dizziness. The multi-stage formaldehyde removal of photocatalysts is a formaldehyde removal method using photocatalyst technology. Photocatalysts are nano-scale titanium dioxide materials that can catalyze chemical reactions under the irradiation of light. In terms of formaldehyde removal, photocatalysts can decompose harmful substances such as formaldehyde into harmless carbon dioxide and water under light conditions.

[0003] After searching, a formaldehyde removal device containing a multi-stage filtration system is disclosed in the announcement number: CN217163851U, including a processing box, wherein a partition, an activated carbon filter and a photocatalyst filter are respectively arranged inside the processing box, and a connecting mechanism is arranged at the upper and lower ends of the activated carbon filter and the photocatalyst filter, and two rotating shafts are rotatably connected between the upper and lower walls of the second inner cavity, and the outer walls of the rotating shafts are provided with multiple eccentric wheels; in this scheme, the air is contacted with the multi-stage filtration of the formaldehyde removal liquid, the activated carbon filter, the photocatalyst filter and the ultraviolet tube, so that the formaldehyde in the air can be filtered and removed at multiple stages, so that the removal of formaldehyde is more thorough and efficient; through the cooperation of the driving mechanism, the rotating shaft, the eccentric wheel and the connecting mechanism, the photocatalyst filter or the activated carbon filter is vibrated back and forth, and impurities and dust can be vibrated and shaken off, which greatly avoids obstruction and blockage, and improves the quality effect and filtration efficiency of the filtration purification.

[0004] In the above application, although the photocatalyst filter or the activated carbon filter is vibrated back and forth through the cooperation of the driving mechanism, the rotating shaft, the eccentric wheel and the connecting mechanism, the impurities and dust can be shaken off, which greatly avoids obstruction and blockage and improves the quality effect and filtration efficiency of the filtration purification. However, the impurities and dust shaken off cannot be cleaned in time, and they will accumulate in the processing box for a long time, reducing the performance of the equipment and affecting the normal operation of the equipment. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a multi-stage formaldehyde removal device based on photocatalyst, aiming to improve the problem that the existing device is not convenient for timely cleaning of the activated carbon net.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage formaldehyde removal device based on photocatalyst, comprising a processing box, a filter window is provided on one side of the processing box, a filter screen is installed inside the processing box, two sliding columns are fixedly connected to the upper sides of the filter screen, a spring is installed on the outer wall of the sliding column, one end of the spring is fixedly connected to the upper sides of the filter screen, a mounting block is installed on the upper sides of the filter screen, a sliding groove is provided inside the mounting block, a sliding block is installed inside the sliding groove, one end of the sliding column passes through one side of the mounting block and is fixedly connected to one side of the sliding block, the other end of the spring is fixedly connected to the outer wall of the mounting block, the outer wall of the mounting block is fixedly connected to a fixed block, the upper surface of the mounting block is fixedly connected to a pushing block, and a stirring mechanism is installed inside the processing box.

[0007] Preferably, the stirring mechanism includes a motor, the outer wall of the motor is installed on the lower surface of the processing box, the output end of the motor is fixedly connected to a rotating rod, both sides of the outer wall of the rotating rod are fixedly connected to stirring rods, and the rotating rod and the stirring rod are both installed inside the processing box.

[0008] Preferably, legs are fixedly connected to the four corners of the lower surface of the processing box.

[0009] Preferably, a second mounting groove is opened above the processing box, the outer wall of the filter is installed inside the second mounting groove, first mounting grooves are opened on both sides of the second mounting groove, and the outer wall of the fixing block is installed inside the first mounting groove.

[0010] Preferably, fixing plates are fixedly connected to both sides of the inner wall of the processing box, and one side of the fixing plate is in contact with one side of the filter screen.

[0011] Preferably, an isolation plate is fixedly connected to the interior of the processing box, a suction fan is installed on one side of the isolation plate, an output end of the suction fan is fixedly connected to an air inlet pipe, one end of the air inlet pipe passes through the isolation plate and is installed on one side of the interior of the processing box, and a plurality of air outlet holes are opened inside the air inlet pipe.

[0012] Preferably, three ultraviolet lamps are installed above the inner wall of the processing box.

[0013] Preferably, a photocatalyst adsorption plate is installed on the other side of the processing box.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the installation block slides on the sliding column by pushing the pushing block, compressing the spring, and driving the two fixed blocks to approach each other, so that the fixed block can be separated from the first installation groove. The pushing block is released, and under the action of the spring, the fixed block can be reset into the first installation groove, that is, the filter can be quickly disassembled and installed, which is convenient for cleaning the filter. The large particles, dust, odor and other impurities in the outside air are first removed through the filter, which effectively maintains the device, prevents dust from clogging the suction fan and polluting the photocatalyst liquid, and effectively improves the working efficiency and performance stability of the device operation.

[0016] 2. In the utility model, the outside air is drawn into the interior of the air inlet pipe through the filter by the suction fan, and then discharged from the air outlet, and enters the photocatalyst liquid in the form of bubbles. Under the irradiation of the ultraviolet lamp, the formaldehyde reacts with the photocatalyst liquid, and the formaldehyde in the gas is quickly decomposed and converted, which can effectively remove the formaldehyde in the adsorbed air.

[0017] 3. In the utility model, the motor drives the rotating rod and then drives the stirring rod to rotate, thereby rotating the bubbles in the photocatalyst liquid in the second cavity, thereby prolonging the residence time of the bubbles in the photocatalyst liquid, effectively improving the decomposition and conversion effect of the photocatalyst liquid on formaldehyde, and then further removing and adsorbing the formaldehyde through the photocatalyst adsorption plate. Through multi-stage formaldehyde removal, the removal of formaldehyde is more thorough and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of a multi-stage formaldehyde removal device based on photocatalyst proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of an installation block of a multi-stage formaldehyde removal device based on photocatalyst proposed by the utility model;

[0020] Figure 3 The utility model provides a schematic diagram of an air intake pipe of a multi-stage formaldehyde removal device based on photocatalyst.

[0021] Legend:

[0022] 1. Processing box; 2. Filter window; 3. Filter screen; 4. Sliding column; 5. Spring; 6. Mounting block; 7. Sliding slot; 8. Sliding block; 9. Fixed block; 10. First mounting slot; 11. Second mounting slot; 12. Motor; 13. Rotating rod; 14. Stirring rod; 15. Pushing block; 16. Fixed plate; 17. Isolation plate; 18. Suction fan; 19. Inlet pipe; 20. Air outlet; 21. Ultraviolet lamp; 22. Photocatalyst adsorption plate; 23. Support leg. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings of the specification of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-Figure 3 , the utility model provides an embodiment: a multi-stage formaldehyde removal device based on photocatalyst, comprising a processing box 1, a filter window 2 is provided on one side of the processing box 1, a filter screen 3 is installed inside the processing box 1, two sliding columns 4 are fixedly connected to the upper sides of the filter screen 3, a spring 5 is installed on the outer wall of the sliding column 4, one end of the spring 5 is fixedly connected to the upper sides of the filter screen 3, a mounting block 6 is installed on the upper sides of the filter screen 3, a sliding groove 7 is provided inside the mounting block 6, a slider 8 is installed inside the sliding groove 7, one end of the sliding column 4 passes through one side of the mounting block 6 and is fixedly connected to one side of the slider 8, the other end of the spring 5 is fixedly connected to the outer wall of the mounting block 6, a fixing block 9 is fixedly connected to the outer wall of the mounting block 6, a pushing block 15 is fixedly connected to the upper surface of the mounting block 6, a stirring mechanism is installed inside the processing box 1, a second mounting groove 11 is provided above the processing box 1, the outer wall of the filter screen 3 is installed inside the second mounting groove 11, a first mounting groove 10 is provided on both sides of the second mounting groove 11, and the outer wall of the fixing block 9 is installed inside the first mounting groove 10.

[0025] Specifically, by pushing the pushing block 15, the two pushing blocks 15 are brought closer to each other, the mounting block 6 slides on the sliding column 4, the mounting block 6 compresses the spring 5, and the slider 8 slides in the sliding groove 7, thereby bringing the two fixing blocks 9 closer to each other, so that the fixing block 9 can be detached from the first mounting groove 10, and the pushing block 15 is released. Under the action of the spring 5, the spring 5 pushes the mounting block 6 to reset the fixing block 9 into the first mounting groove 10, so that the filter 3 can be quickly disassembled and installed.

[0026] Reference Figure 1 , Figure 3 The stirring mechanism includes a motor 12, the outer wall of the motor 12 is installed on the lower surface of the processing box 1, the output end of the motor 12 is fixedly connected to a rotating rod 13, and both sides of the outer wall of the rotating rod 13 are fixedly connected to stirring rods 14, the rotating rod 13 and the stirring rod 14 are both installed inside the processing box 1, and the four corners of the lower surface of the processing box 1 are fixedly connected to support legs 23.

[0027] Specifically, the motor 12 drives the rotating rod 13 to rotate, thereby driving the stirring rod 14 to rotate. The stirring rod 14 is installed above the air inlet pipe 19.

[0028] Reference Figure 3 Both sides of the inner wall of the processing box 1 are fixedly connected with fixing plates 16 , and one side of the fixing plate 16 is in contact with one side of the filter screen 3 .

[0029] Specifically, the setting of the fixing plate 16 has a certain guiding effect on the installation of the filter 3, effectively improving the stability of the installation of the filter 3.

[0030] An isolation plate 17 is fixedly connected to the inside of the processing box 1, and a suction fan 18 is installed on one side of the isolation plate 17. An air intake pipe 19 is fixedly connected to the output end of the suction fan 18. One end of the air intake pipe 19 passes through the isolation plate 17 and is installed on one side of the inside of the processing box 1. A plurality of air outlet holes 20 are opened inside the air intake pipe 19.

[0031] Specifically, the isolation plate 17 divides the interior of the processing box 1 into two cavities, a first cavity and a second cavity. The interior of the second cavity is filled with a certain amount of photocatalyst liquid. The setting of the air outlet 20 can convert the gas in the air inlet pipe 19 into small bubbles, and make the small bubbles more evenly distributed in the photocatalyst liquid.

[0032] Three ultraviolet lamps 21 are installed on the inner wall of the processing box 1 , and a photocatalyst adsorption plate 22 is installed on the other side of the processing box 1 .

[0033] Specifically, the provision of the ultraviolet lamp 21 is conducive to the reaction of formaldehyde with the photocatalyst liquid and the photocatalyst adsorption plate 22 .

[0034] Working principle: when the device needs to be used, the suction fan 18 is turned on, and the outside air enters the air inlet pipe 19 through the filter 3. The filter 3 first removes large particles, dust, odor and other impurities in the outside air, and effectively maintains the device. The outside air is discharged from the air outlet 20 through the air inlet pipe 19 and enters the photocatalyst liquid. Under the irradiation of the ultraviolet lamp 21, formaldehyde reacts with the photocatalyst liquid, which can effectively remove the formaldehyde in the adsorbed air. The gas in the photocatalyst liquid exists in the form of bubbles. The rotating rod 13 is driven by the starting motor 12. The rotating rod 13 rotates and then drives the stirring rod 14 to rotate, thereby stirring the photocatalyst liquid in the second cavity, and then the bubbles in the photocatalyst liquid can be rotated, thereby prolonging the time that the bubbles stay in the photocatalyst liquid, effectively improving the decomposition and conversion effect of the photocatalyst liquid on formaldehyde. The bubbles rise, leave the photocatalyst liquid, accumulate above the second cavity, and pass through the photocatalyst adsorption plate 22 , further remove and adsorb formaldehyde, and finally the filtered gas is directly discharged through the photocatalyst adsorption plate 22. Through multi-stage formaldehyde removal, the formaldehyde removal is more thorough and efficient, meeting the existing needs. When the filter 3 needs to be replaced or cleaned, the two pushing blocks 15 are pushed close to each other, thereby disengaging the fixing block 9 from the first mounting groove 10, and the filter 3 is pulled out upward at the same time. When installation is required, the two pushing blocks 15 are pushed again to compress the spring 5, and the slider 8 slides in the sliding groove 7, thereby driving the two fixing blocks 9 close to each other. By inserting the filter 3 into the second mounting groove 11, the fixing block 9 is aligned with the first mounting groove 10, and then the pushing block 15 is released. Under the action of the spring 5, the mounting block 6 can be pushed and then the fixing block 9 can be pushed, so that the fixing block 9 enters the first mounting groove 10. The installation can be completed, the device can be effectively maintained, and the working efficiency of the device can be improved.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-stage formaldehyde removal device based on photocatalyst, comprising a treatment box (1), characterized in that: A filter window (2) is provided on one side of the processing box (1), a filter screen (3) is installed inside the processing box (1), two sliding columns (4) are fixedly connected to the upper sides of the filter screen (3), a spring (5) is installed on the outer wall of the sliding column (4), one end of the spring (5) is fixedly connected to the upper sides of the filter screen (3), a mounting block (6) is installed on the upper sides of the filter screen (3), a sliding groove (7) is provided inside the mounting block (6), a sliding block (8) is installed inside the sliding groove (7), one end of the sliding column (4) passes through one side of the mounting block (6) and is fixedly connected to one side of the sliding block (8), the other end of the spring (5) is fixedly connected to the outer wall of the mounting block (6), the outer wall of the mounting block (6) is fixedly connected to a fixing block (9), the upper surface of the mounting block (6) is fixedly connected to a pushing block (15), and a stirring mechanism is installed inside the processing box (1).

2. The multi-stage formaldehyde removal device based on photocatalyst according to claim 1, characterized in that: The stirring mechanism comprises a motor (12), the outer wall of the motor (12) is mounted on the lower surface of the processing box (1), the output end of the motor (12) is fixedly connected to a rotating rod (13), both sides of the outer wall of the rotating rod (13) are fixedly connected to stirring rods (14), and the rotating rod (13) and the stirring rod (14) are both mounted inside the processing box (1).

3. The multi-stage formaldehyde removal device based on photocatalyst according to claim 2, characterized in that: The four corners of the lower surface of the processing box (1) are fixedly connected with supporting legs (23).

4. The multi-stage formaldehyde removal device based on photocatalyst according to claim 3, characterized in that: A second mounting groove (11) is provided above the processing box (1), the outer wall of the filter screen (3) is installed inside the second mounting groove (11), first mounting grooves (10) are provided on both sides of the second mounting groove (11), and the outer wall of the fixing block (9) is installed inside the first mounting groove (10).

5. The multi-stage formaldehyde removal device based on photocatalyst according to claim 4, characterized in that: Both sides of the inner wall of the processing box (1) are fixedly connected with fixing plates (16), and one side of the fixing plate (16) is in contact with one side of the filter screen (3).

6. The multi-stage formaldehyde removal device based on photocatalyst according to claim 5, characterized in that: An isolation plate (17) is fixedly connected to the interior of the processing box (1), a suction fan (18) is installed on one side of the isolation plate (17), an output end of the suction fan (18) is fixedly connected to an air intake pipe (19), one end of the air intake pipe (19) passes through the isolation plate (17) and is installed on one side of the interior of the processing box (1), and a plurality of air outlet holes (20) are opened inside the air intake pipe (19).

7. The multi-stage formaldehyde removal device based on photocatalyst according to claim 6, characterized in that: Three ultraviolet lamps (21) are installed above the inner wall of the processing box (1).

8. The multi-stage formaldehyde removal device based on photocatalyst according to claim 7, characterized in that: A photocatalyst adsorption plate (22) is installed on the other side of the processing box (1).

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