A low-resistance energy-saving photocatalytic purifier

Abstract

The present invention relates to the technical field of air purification, and discloses a low-resistance energy-saving photocatalytic purifier, comprising a catalytic tube for air circulation, and further comprising: a photocatalytic part, arranged in the catalytic tube, to catalytically purify the air; a cleaning part, movably arranged in the catalytic tube and in contact with the photocatalytic part, to translate and wipe the photocatalytic part clean; a pulling part, arranged through the catalytic tube, and connected to the cleaning part, to drive the cleaning part to translate. The present invention provides a catalytic tube that can be placed in the return air duct of a fan coil unit, and a photocatalytic part is arranged in the catalytic tube. Air enters from one end of the catalytic tube, and a reaction area is formed by an adsorption component in the photocatalytic part. Ultraviolet light irradiation excites the generation of photogenerated carriers, causing formaldehyde molecules in the air to undergo oxidative degradation reactions, and the treated gas is discharged through the other end. The device is suitable for degrading indoor pollutants in the return air duct of the fan coil unit, does not require additional space, has low energy consumption, has strong reaction and mass transfer capabilities on the surface of the photocatalyst, has a simple structure, and has high reaction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification, and in particular to a low-resistance energy-saving photocatalytic purifier. Background Art

[0002] Indoor formaldehyde pollution is a global environmental problem that seriously threatens human health. Photocatalytic oxidation technology has become a research hotspot because of its green and efficient nature. However, traditional reactors have problems such as low light utilization and poor mass transfer. Flat-plate, annular, tubular, honeycomb, packed bed and duct-type photocatalytic reactors are commonly used to purify the air. However, there are still problems that need to be solved urgently.

[0003] Although the above-mentioned reactor has improved the mass transfer efficiency and light utilization efficiency through structural optimization, in the fresh air and fan coil systems commonly used in offices, hotels and hospital wards, VOCs gases emitted in the room can enter the fan coil system through the return air path. In order to effectively treat such pollutants, a photocatalytic purifier can be installed in the inlet air duct of the fan coil for treatment.

[0004] However, due to the narrow cross-section of the inlet air duct and the short flow channel length structure, the existing purifiers cannot meet the dual requirements of high photocatalytic degradation performance and low resistance. At the same time, the design of existing photocatalytic reactors is mostly based on ideal laboratory conditions, and the energy consumption is too high when applied to actual indoor gas purification. Summary of the Invention

[0005] The present invention provides a low-resistance energy-saving photocatalytic purifier suitable for degrading indoor pollutant gases in the return air duct of a fan coil unit. It does not require additional space, has low energy consumption, has strong reaction and mass transfer capabilities on the photocatalyst surface, has a simple structure, and has high reaction efficiency.

[0006] In order to solve the above technical problems, the technical solutions of the present invention are as follows:

[0007] In a first aspect, a low-resistance energy-saving photocatalytic purifier is characterized by comprising a catalytic cartridge for air circulation, and further comprising:

[0008] The photocatalytic unit is arranged in the catalytic cylinder to catalytically purify the air;

[0009] The cleaning part is movably arranged in the catalytic cylinder and penetrates the catalytic cylinder, and can contact the light-catalyzing part to wipe and clean the light-catalyzing part;

[0010] The cleaning pushing part is arranged in the catalytic cylinder and connected to the cleaning part to push out the cleaning debris;

[0011] The smearing portion is provided through one side of the catalytic cylinder and can contact the cleaning portion to apply the cleaning liquid to the cleaning portion;

[0012] The photocatalytic unit includes a photocatalytic sheet arranged in a catalytic tube and having a wavy structure, and an ultraviolet lamp arranged in the catalytic tube and located at the center line of the catalytic tube to evenly irradiate the photocatalytic sheet;

[0013] The cleaning part includes pull plates symmetrically arranged at both ends of the catalytic cylinder and connected to the catalytic cylinder in a translational guide manner, and a multi-stage electric cylinder fixed to one side of the catalytic cylinder by a fixing component, and also includes a pull rope with one end connected to the telescopic end of the multi-stage electric cylinder by a connecting component, and the other end fixedly connected to the pull plate, and two push rods rotatably arranged through the pull plate, and the outer side of the push rod is provided with a cotton brush, and is wavy in shape to cooperate with the photocatalytic sheet;

[0014] The pushing and cleaning part includes a channel between the end of the photocatalytic sheet away from the multi-stage electric cylinder and the catalytic cylinder, a push plate elastically arranged in the channel, and a traction rope connected to the pull plate through a connecting component;

[0015] The applying part includes an elastic rope that passes through the pull plate and is connected to the end of the pull rope, and an overturning part that engages with the push rod and is connected to the elastic rope to flip the cotton brush. It also includes a storage box arranged on the outside of the catalytic cylinder, which passes through the storage box and a high-density compressed cotton plate on one side of the catalytic cylinder and is located on the cotton brush.

[0016] Furthermore, the photocatalytic unit includes an adsorption member and a catalytic member. The catalytic member passes through the catalytic cylinder and is symmetrically arranged and located at the center line of the catalytic cylinder to irradiate the catalytic adsorption member. The adsorption member is arranged on the inner wall of the catalytic cylinder to adsorb formaldehyde. The adsorption member includes:

[0017] There are two photocatalytic sheets, one of which is fixed on the inner side of the bottom wall of the catalytic tube, and the other is fixed on the inner side of the top wall of the catalytic tube;

[0018] The photocatalytic sheet is made of aluminum, has a height of 10 mm, and a corrugated width of 33 mm, so as to increase the loading area.

[0019] Furthermore, the catalytic element includes:

[0020] There are two lamp holders, which are symmetrically arranged on one side of the catalytic tube and located at the center line of the catalytic tube;

[0021] There are two UV lamps, each plugged into a lamp holder and having a diameter of 15 mm.

[0022] The distance between the two UV lamps is 43 mm to form a uniform illumination field;

[0023] The two lamp holders and the ultraviolet lamp are arranged in parallel.

[0024] Furthermore, the cleaning and wiping part includes a guide and a wiping member. The guide is provided at the end of the catalytic cylinder and is located on the outside. It is connected to the guide of the catalytic cylinder and can pull the wiping member. The wiping member is symmetrically provided in the catalytic cylinder and contacts the adsorption member to wipe and clean the adsorption member. The guide includes:

[0025] There are four guide rails, which are symmetrically opened at both ends of the catalytic cylinder;

[0026] A guide block is slidably arranged on the inner side of the guide rail;

[0027] A connecting rod, one end of which is inserted into the inner side of the guide rail and fixedly connected to the guide block;

[0028] There are two pull plates, which are fixedly connected to the other end of the connecting rod;

[0029] A spring, one end of which is fixed to one side of the pull plate.

[0030] Furthermore, the rubbing piece includes:

[0031] A through hole is opened through the interior of the catalytic cylinder and is located on a side away from the multi-stage electric cylinder;

[0032] A perforation is provided through the catalytic cylinder and is located on a side close to the multi-stage electric cylinder;

[0033] The pull rope is movable through the through hole and the perforation arrangement;

[0034] A connecting plate is fixed on the sides of the two push rods that are close to each other;

[0035] The cotton brush is fixedly connected to the connecting plate.

[0036] Furthermore, the cleaning unit includes:

[0037] L-plate, fixed to the rear end of the catalytic cylinder;

[0038] A tension spring, one end of which is fixed in the L-plate and the other end is connected to the push plate and is in a stretched state;

[0039] The traction rope is located below the photocatalytic sheet and is connected to the pull plate through a connecting rod.

[0040] Furthermore, the smearing part includes a pulling member and a coating storage member, the pulling member is arranged through the pulling plate, the coating storage member is arranged through the catalytic cylinder and is located on the cotton brush turning path to store the cleaning liquid on the cotton brush; the pulling member includes:

[0041] A hole is formed through the side of the pull plate close to the pull rope;

[0042] The pull rope movably passes through the hole and is connected to the elastic rope;

[0043] Guide rod, movable through the pull plate setting;

[0044] A triangular plate is fixed to the end of the guide rod and is connected to the end of the elastic rope away from the pull rope;

[0045] The overturning part is connected to the rubbing part so as to overturn the cotton brush during the extension process of the electric cylinder.

[0046] Furthermore, the overturning part includes:

[0047] A torsion spring is sleeved on the outside of the push rod, one end of the torsion spring is connected to the pull plate through a fixing component, and the other end is fixed to the push rod;

[0048] The tooth blocks are evenly fixed on the outside of the push rod;

[0049] There are two racks, which are guided and connected to the two inclined surfaces of the triangle plate and are guided and connected to the pull plate;

[0050] The rack is engaged with the gear block.

[0051] Furthermore, the paint storage member includes:

[0052] The cotton strip is arranged through one side of the storage box close to the catalytic cylinder;

[0053] The high-density compressed cotton plate is connected to the end of the cotton strip;

[0054] The high-density compressed cotton plate has a wavy structure to cover the cotton brush;

[0055] Storage and protection parts are arranged on the storage box.

[0056] Furthermore, the storage and protection parts include:

[0057] End cover, adhered and fixed on the storage box;

[0058] Threaded cover, threaded connection through the top of the end cover;

[0059] The air guide plate is fixed on the catalytic cylinder and connected to the other end of the spring.

[0060] The above solution of the present invention includes at least the following beneficial effects:

[0061] A catalytic cartridge that can be placed in the return air duct of the fan coil unit is provided, a photocatalytic part is provided in the catalytic cartridge, air enters from one end of the catalytic cartridge, and an adsorption part in the photocatalytic part is used to form a reaction area. Under the irradiation of ultraviolet light emitted by the catalytic part provided in the photocatalytic part, the catalyst surface is excited to generate photogenerated carriers, causing the formaldehyde molecules in the air to oxidize and degrade, and the treated gas is discharged through the other end. The height of the adsorption part is 10mm, the corrugation width is 33mm, and the diameter of the catalytic part is 15mm, with a spacing of 43mm, so that it can be directly embedded in the return air outlet of the air conditioner or the ventilation duct without occupying additional indoor space. It is naturally integrated with the building ventilation system, extending the flow path of the gas on the surface of the catalytic material, increasing the reaction time of formaldehyde molecules and photogenerated carriers, and improving the degradation efficiency. The lamps are arranged parallel and symmetrically in the reaction area to ensure that the uniformity of the radiation intensity of the catalytic surface is improved and the light intensity attenuation in the edge area is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 An overall three-dimensional diagram of a low-resistance energy-saving photocatalytic purifier provided by an embodiment of the present invention;

[0063] Figure 2 A three-dimensional exploded view of the ultraviolet lamp and photocatalytic sheet provided in an embodiment of the present invention;

[0064] Figure 3 A perspective view of a cross section of a catalytic cartridge provided in an embodiment of the present invention;

[0065] Figure 4 A three-dimensional diagram of the push plate, tension spring (in contracted state), and L-plate assembly provided in an embodiment of the present invention;

[0066] Figure 5 A three-dimensional diagram of a combination of a photocatalytic sheet, a UV lamp, a multi-stage electric cylinder, a cotton brush, and a high-density compressed cotton plate provided in an embodiment of the present invention;

[0067] Figure 6 The embodiment of the present invention provides Figure 5 Schematic diagram of the structure at C in FIG;

[0068] Figure 7 A three-dimensional exploded view of the push rod, pull plate, triangular plate and rack assembly provided in an embodiment of the present invention;

[0069] Figure 8 The embodiment of the present invention provides Figure 7 Schematic diagram of the structure at D in FIG;

[0070] Figure 9 A three-dimensional diagram of a gear block provided in an embodiment of the present invention;

[0071] Figure 10 A three-dimensional exploded view of the end cover, high-density compressed cotton board and storage box provided in an embodiment of the present invention;

[0072] Figure 11 The embodiment of the present invention provides Figure 3 Schematic diagram of the structure at A in FIG;

[0073] Figure 12 The embodiment of the present invention provides Figure 3 Schematic diagram of the structure at B in FIG;

[0074] Figure 13 A perspective view of a connecting rod and guide block assembly provided in an embodiment of the present invention;

[0075] Figure 14 A three-dimensional diagram of a multi-stage electric cylinder provided in an embodiment of the present invention.

[0076] Description of reference numerals:

[0077] In the figure: 1. Catalytic tube; 2. Photocatalytic sheet; 3. Lamp holder; 4. UV lamp; 5. Guide rail; 6. Guide block; 7. Connecting rod; 8. Pull plate; 9. Through hole; 10. Perforation; 11. Pull rope; 12. Fixed seat; 13. Multi-stage electric cylinder; 14. Connecting ring; 15. Push rod; 16. Connecting plate; 17. Cotton brush; 18. Torsion spring; 19. Tooth block; 20. Rack; 21. T-slot; 22. T-plate; 23. Guide rod; 24. Triangle plate; 25. Elastic rope; 26. Spring; 27. L-plate; 28. Tension spring; 29. ​​Push plate; 30. Pull rope; 31. Storage box; 32. Cotton strips; 33. High-density compressed cotton plate; 34. End cover; 35. Threaded cover; 36. Air guide plate; 37. Guide groove; 38. Arc edge guide plate. DETAILED DESCRIPTION

[0078] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0079] like Figures 1 to 14 As shown, an embodiment of the present invention provides a low-resistance energy-saving photocatalytic purifier, characterized in that it includes a catalytic tube 1 for air circulation, and also includes:

[0080] The photocatalytic unit is arranged in the catalytic cylinder 1 to catalytically purify the air;

[0081] The cleaning part is movably arranged in the catalytic cylinder 1 and penetrates the catalytic cylinder 1, and can contact the photocatalytic part to wipe and clean the photocatalytic part;

[0082] The cleaning pushing part is arranged in the catalytic cylinder 1 and connected to the cleaning part to push out the cleaning debris;

[0083] The smearing portion is provided through one side of the catalytic cylinder 1 and can contact the cleaning portion to apply the cleaning liquid to the cleaning portion;

[0084] The photocatalytic unit includes a photocatalytic sheet 2 disposed in a catalytic tube 1 and having a wavy structure, and an ultraviolet lamp 4 disposed in the catalytic tube 1 and located at the center line of the catalytic tube 1 to evenly irradiate the photocatalytic sheet 2;

[0085] The cleaning part includes pull plates 8 symmetrically arranged at both ends of the catalytic cylinder 1 and connected to the catalytic cylinder 1 for translational guide, and a multi-stage electric cylinder 13 fixed to one side of the catalytic cylinder 1 by a fixing component, and also includes a pull rope 11 with one end connected to the telescopic end of the multi-stage electric cylinder 13 by a connecting component, and the other end fixedly connected to the pull plate 8, and two push rods 15 symmetrically arranged and rotatable through the pull plate 8, and the outer side of the push rod 15 is provided with a cotton brush 17, which is wavy in shape to cooperate with the photocatalytic sheet 2;

[0086] The pushing and cleaning part includes a passage between the end of the photocatalytic sheet 2 away from the multi-stage electric cylinder 13 and the catalytic tube 1, a push plate 29 elastically arranged in the passage, and a traction rope 30 connected to the pull plate 8 through a connecting component;

[0087] The smearing part includes an elastic rope 25 that passes through the pull plate 8 and is connected to the end of the pull rope 11, and an overturning part that engages with the push rod 15 and is connected to the elastic rope 25 to flip the cotton brush 17. It also includes a storage box 31 arranged on the outside of the catalytic cylinder 1 to pass through the storage box 31 and a high-density compressed cotton plate 33 on one side of the catalytic cylinder 1, and is located on the cotton brush 17.

[0088] Specifically, the photocatalytic sheet 2 is made of corrugated aluminum, which is relatively smooth and can reduce air resistance. The return air duct of the FP-34 fan coil unit has a size of 550 mm×235 mm×130 mm, and the size of the photocatalytic purifier is 550 mm×130 mm×80 mm. The catalytic tube 1 can provide stable support and protection for the photocatalytic sheet 2, lamp holder 3 and ultraviolet lamp 4, and can provide a circulation channel for air.

[0089] In actual application of this embodiment, the staff can place the catalytic purifier in the return air duct of the fan coil unit using the catalytic cartridge 1, and connect the catalytic cartridge 1 to the air duct using a fixing component, so that the air entering the return air duct of the fan coil unit can be blown into the catalytic cartridge 1 and discharged from the air duct through the catalytic cartridge 1.

[0090] As a preferred embodiment of the present invention, the photocatalytic unit includes an adsorption member and a catalytic member. The catalytic member passes through the catalytic cylinder 1 and is symmetrically arranged and located at the center line of the catalytic cylinder 1 to irradiate the catalytic adsorption member. The adsorption member is arranged on the inner wall of the catalytic cylinder 1 to adsorb formaldehyde. The adsorption member includes:

[0091] There are two photocatalytic sheets 2 , one of which is fixed on the inner side of the bottom wall of the catalytic tube 1 , and the other is fixed on the inner side of the top wall of the catalytic tube 1 .

[0092] Specifically, the photocatalytic sheet 2 includes:

[0093] The photocatalytic sheet 2 is made of aluminum, has a height of 10 mm, and a corrugated width of 33 mm, so as to increase the loading area.

[0094] Specifically, the photocatalytic sheet 2 can provide a support for the catalyst. During the production process of the photocatalytic sheet 2, a Mn / TiO2 composite catalyst coating must be evenly coated on its surface through a sol and gel process. Two photocatalytic sheets 2 and the Mn / TiO2 composite catalyst coating can form a reaction area.

[0095] Catalytic components include:

[0096] There are two lamp holders 3, which are symmetrically arranged on one side of the catalytic tube 1 and located at the center line of the catalytic tube 1;

[0097] There are two UV lamps 4, which are plugged into the lamp holder 3 and have a diameter of 15 mm.

[0098] The distance between the two UV lamps 4 is 43 mm to form a uniform illumination field;

[0099] The two lamp holders 3 and the ultraviolet lamp 4 are arranged in parallel.

[0100] Specifically, the catalytic tube 1 can provide a stable support for the lamp holder 3, the lamp holder 3 can provide an installation space for the ultraviolet lamp 4, and can supply power to the ultraviolet lamp 4, so that the ultraviolet lamp 4 can be powered on to emit ultraviolet light to irradiate the photocatalytic sheet 2. The single lamp power of the ultraviolet lamp 4 is 15W, the ultraviolet lamp 4 is a 254 nm type, and the light energy is 4.9 eV. It can provide light energy of a specific wavelength required for the photocatalytic reaction, and can efficiently excite photogenerated electrons and hole pairs. The 43mm spacing can achieve the light intensity superposition effect under the parallel layout of the two lamp tubes, ensuring that the surface of the photocatalytic sheet 2 can obtain more uniform and sufficient light radiation, which is more energy-saving and improves the utilization efficiency of the photocatalyst.

[0101] In actual application of this embodiment, arranging two lamp tubes in parallel can better form a relatively uniform lighting field in the air duct, so that the air flowing through different positions of the air duct can fully contact the excited photocatalytic material, thereby improving the degradation efficiency and treatment capacity of pollutants in the air (such as formaldehyde, benzene, etc.), and ensuring that the circulating air in the air duct is more fully and efficiently purified; the setting of the upper and lower layers of corrugated plates significantly increases the loading area of ​​the photocatalytic material, and more photocatalytic material can be coated on the surface of the corrugated plate, so that there are more active sites to participate in the photocatalytic reaction, and at the same time, the more concentrated or turbulent airflow is more evenly distributed in the air duct, ensuring that the airflow is fully in contact with the surface of the photocatalytic material, and avoiding the occurrence of local flow speeds that are too fast or too slow.

[0102] Air will be sucked into the return air duct of the fan coil unit and enter the catalytic tube 1 along the air duct. Then, the air will enter the reaction area composed of two photocatalytic sheets 2 in the catalytic tube 1. At the same time, the staff needs to power the lamp holder 3 after installing the catalytic tube 1, so that the ultraviolet lamp 4 emits ultraviolet light to illuminate the photocatalytic sheet 2, so that the surface of the Mn / TiO2 catalyst on the photocatalytic sheet 2 is excited to generate photogenerated carriers, generating photogenerated electron and hole pairs. The photogenerated holes react with adsorbed water molecules to generate strong oxidizing active species such as OH. The formaldehyde molecules in the air are oxidized by the above active species, decompose and convert into harmless products, thereby oxidizing and degrading the formaldehyde molecules in the air, so that the air passing through the catalytic tube 1 becomes purified gas, and the purified gas will be discharged from the return air duct of the fan coil unit.

[0103] The oxidative degradation products will remain on the photocatalytic sheet 2.

[0104] As a preferred embodiment of the present invention, the cleaning and wiping part includes a guide and a wiping member. The guide is provided at the end of the catalytic cylinder 1 and is located on the outside. It is connected to the catalytic cylinder 1 and can pull the wiping member. The wiping member is symmetrically provided in the catalytic cylinder 1 and contacts the adsorption member to wipe and clean the adsorption member. The guide includes:

[0105] There are four guide rails 5, which are symmetrically arranged at both ends of the catalytic cylinder 1;

[0106] A guide block 6 is slidably arranged on the inner side of the guide rail 5;

[0107] Connecting rod 7, one end of which is inserted into the inner side of guide rail 5 and fixedly connected to guide block 6;

[0108] There are two pull plates 8, which are fixedly connected to the other end of the connecting rod 7;

[0109] One end of the spring 26 is fixed to one side of the pull plate 8.

[0110] Specifically, the guide rail 5 can provide a moving guide for the guide block 6, preventing the guide block 6 from rotating so that it can only move horizontally, and the guide block 6 can provide support for the connecting rod 7.

[0111] The wipes include:

[0112] The through hole 9 is formed through the interior of the catalytic cylinder 1 and is located on a side away from the multi-stage electric cylinder 13;

[0113] The through hole 10 is formed through the catalytic cylinder 1 and is located on a side close to the multi-stage electric cylinder 13;

[0114] The pull rope 11 is movable through the through hole 9 and the through hole 10;

[0115] The connecting plate 16 is fixed to the side where the two push rods 15 are close to each other;

[0116] The cotton brush 17 is fixedly connected to the connecting plate 16 .

[0117] Specifically, one side of the catalytic cylinder 1 is fixedly connected to a fixing seat 12 through a fixing component, and the fixing seat 12 is sleeved on the fixed end of the multi-stage electric cylinder 13. The telescopic end of the multi-stage electric cylinder 13 is connected to a connecting ring 14 through a fixing component, and the connecting ring 14 is connected to one end of the pull rope 11. The connecting rod 7 can firmly support the pull plate 8 under the support of the guide block 6, and the pull plate 8 can provide support for the push rod 15, and the push rod 15 can provide support for the connecting plate 16. The connecting plate 16 can firmly support the cotton brush 17. The cotton brush 17 is relatively soft and has adsorption and a certain roughness. It can generate friction with the photocatalytic sheet 2 during movement. The fixing seat 12 can firmly support the multi-stage electric cylinder 13 under the support of the catalytic cylinder 1. The multi-stage electric cylinder 13 can provide support for one end of the pull rope 11 through the connecting ring 14, and can pull the pull rope 11 through the connecting ring 14 when telescoping. The guide hole and the through hole 10 can provide a through channel and guide for the pull rope 11, and can cooperate with the catalytic cylinder 1 to provide support and resistance for the pull rope 11.

[0118] In actual application of this embodiment, the staff can control the extension of the multi-stage electric cylinder 13 according to actual needs, so that the multi-stage electric cylinder 13 uses the telescopic end to push one end of the pull rope 11 to move away from the fixed seat 12 through the connecting ring 14 under the support of the fixed seat 12, so that the pull rope 11 is pushed by the external force to pass through the through hole 10 and the through hole 9, and then the other end of the pull rope 11 uses the external force to pull the triangular plate 24 to one side, and pull the pull plate 8 through the triangular plate 24, so that the pull plate 8 drives the connecting rod 7 to move together under the action of the external force, so that the connecting rod 7 drives the guide block 6 Move together along the guide rail 5, so that the guide block 6 can cooperate with the guide rail 5 to provide a moving guide for the connecting rod 7 and the pull plate 8, so that the pull plate 8 can translate along the guide rail 5, and then the pull plate 8 can drive the connecting plate 16 to translate to one side through the push rod 15, and then the connecting plate 16 drives the cotton brush 17 to translate to one side in conjunction with the photocatalytic sheet 2. During the translation process, the cotton brush 17 will use external force and its own friction to wipe and clean the impurities and dirt on the photocatalytic sheet 2, and the staff can spray cleaning liquid on the cotton brush 17 to make the cotton brush 17 adsorb, and use the cleaning liquid to assist in the cleaning work.

[0119] When the pulling plate 8 is pulled and translated toward the through hole 9 , the pulling plate 8 uses external force to pull the spring 26 , so that the spring 26 is stretched and deformed under the action of the external force and the support of the air guide plate 36 .

[0120] As a preferred embodiment of the present invention, the cleaning unit includes:

[0121] L-plate 27, fixed to the rear end of the catalytic cylinder 1;

[0122] A tension spring 28, one end of which is fixed in the L-plate 27 and the other end of which is connected to the push plate 29 and is in a stretched state;

[0123] The traction rope 30 is located below the photocatalytic sheet 2 and is connected to the pull plate 8 through a connecting rod 7 .

[0124] Specifically, the impurities and dirt on the photocatalytic sheet 2 will be pushed into the channel between the photocatalytic sheet 2 and the catalytic tube 1 by the cotton brush 17. The traction rope 30 can pull the push plate 29 under the support of the connecting rod 7, so that the push plate 29 can pull the tension spring 28. The L plate 27 can provide support for the tension spring 28 under the support of the catalytic tube 1, so that the tension spring 28 can be pulled by the push plate 29 into a stretched state.

[0125] The pull rope 30 is pulled by the tension spring 28 and the pull rope 30 is pulled out of the channel to the L plate 27. The spring 26 is then relaxed, and the external force applied to the spring 26 is eliminated, so that the spring 26, supported by the air guide plate 36, uses the rebound force to pull the pull plate 8 in the direction away from the through hole 9 and translates along the guide rail 5. At the same time, the pull plate 8 will pull the pull rope 11 together through the triangular plate 24 and the elastic rope 25 to move and reset. At the same time, the pull plate 8 will pull the traction rope 30 through the connecting rod 7 during the movement and reset process, so that the traction rope 30 pulls the push plate 29 under the action of the external force and the resistance support of the photocatalytic sheet 2, so that the push plate 29 uses the external force to pull the spring 26 to stretch and deform, so that the push plate 29 can move along the channel between the photocatalytic sheet 2 and the catalytic tube 1 in the direction away from the L plate 27, and during the movement, the push plate 29 uses its own inclination angle to shovel and push the clean impurities in the channel to the outside of the catalytic tube 1 for collection and processing by the staff, so as to cooperate with the cotton brush 17 for cleaning, automatically discharge and process the clean impurities, and provide convenience for cleaning work.

[0126] As a preferred embodiment of the present invention, the smearing part includes a pulling member and a coating storage member. The pulling member is set through the pulling plate 8, and the coating storage member is set through the catalytic cylinder 1 and is located on the turning path of the cotton brush 17 to store the cleaning liquid on the cotton brush 17. The pulling member includes:

[0127] A hole is formed on one side of the pull plate 8 near the pull rope 11;

[0128] The pull rope 11 is movable through the hole and connected to the elastic rope 25;

[0129] The guide rod 23 is movable and passes through the pull plate 8;

[0130] The triangular plate 24 is fixed to the end of the guide rod 23 and connected to the end of the elastic cord 25 away from the pull cord 11;

[0131] The overturning part is connected to the rubbing part to turn over the cotton brush 17 during the extension process of the electric cylinder.

[0132] Specifically, the rack 20 has an inclined arc at one end close to the triangular plate 24 so that the triangular plate 24 can push the rack 20 to move using the inclined angle. The hole can provide a through channel for the pull rope 11 and the elastic rope 25, and the other end of the pull rope 11 can provide support for the elastic rope 25.

[0133] Overturned parts include:

[0134] The torsion spring 18 is sleeved on the outside of the push rod 15, and one end is connected to the pull plate 8 through a fixing component, and the other end is fixed to the push rod 15;

[0135] The tooth blocks 19 are evenly fixed on the outside of the push rod 15;

[0136] The rack 20 has two guides connected to the two inclined surfaces of the triangular plate 24 and is connected to the pull plate 8;

[0137] The rack 20 meshes with the toothed block 19 .

[0138] Specifically, an arc-edge guide plate 38 is fixed to the position of the rack 20 near the triangular plate 24, and a guide groove 37 is provided on the inclined surface of the triangular plate 24. The arc-edge guide plate 38 is located in the guide groove 37. A T-slot 21 is provided on the side of the rack 20 away from the triangular plate 24. Two T-plates 22 are symmetrically fixed on one side of the pull plate 8, and the T-plate 22 is inserted into the T-slot 21 to provide a moving guide for the rack 20. The tooth block 19 can provide support for the rack 20 by meshing under the support of the push rod 15. The push rod 15 can drive one end of the torsion spring 18 to rotate together during the rotation process, so that the torsion spring 18 is rotated and twisted to store energy under the support of the pull plate 8, and it will rebound after the external force disappears. The push rod 15 can provide stable support for the tooth block 19, and the tooth block 19 can mesh with the rack 20.

[0139] The paint storage parts include:

[0140] The cotton strip 32 is provided through the storage box 31 and close to the catalytic cylinder 1;

[0141] The high-density compressed cotton plate 33 is connected to the end of the cotton strip 32;

[0142] The high-density compressed cotton plate 33 is a wave-shaped structure to cover the cotton brush 17;

[0143] Storage and protection parts are arranged on the storage box 31.

[0144] Specifically, the catalytic cylinder 1 can provide stable support for the storage box 31, so that the storage box 31 can provide support for the cotton strips 32, and the catalytic cylinder 1 can provide support for the high-density compressed cotton board 33. The cotton strips 32 and the high-density compressed cotton board 33 are absorptive and can absorb the conductive cleaning liquid (alcohol).

[0145] Storage parts include:

[0146] The end cover 34 is adhesively fixed to the storage box 31;

[0147] The threaded cover 35 passes through the top of the end cover 34 and is threadedly connected;

[0148] The air guide plate 36 is fixed on the catalytic cylinder 1 and connected to the other end of the spring 26 .

[0149] Specifically, the storage box 31 can provide stable support for the end cover 34, the end cover 34 can provide protection for its inner parts, and can use threads to provide support for the threaded cover 35. The catalytic cylinder 1 can provide support for the wind guide plate 36, and the wind guide plate 36 has an inclined angle, which can allow gas to enter the catalytic cylinder 1.

[0150] In actual application of this embodiment, when the multi-stage electric cylinder 13 is extended to pull the pull rope 11, the pull rope 11 will move through the hole and stretch the elastic rope 25 to move through the hole during the movement, so that the elastic rope 25 can be stretched to the limit under the support of the triangle plate 24 (after stretching to the limit, the elastic rope 25 will not continue to deform and stretch). Afterwards, as the multi-stage electric cylinder 13 continues to stretch, the pull rope 11 will pull the triangle plate 24 through the elastic rope 25 that has been stretched to the limit, so that the triangle plate 24 moves horizontally in the direction close to the pull plate 8 under the guidance of the guide rod 23 and the pull plate 8. , and then the triangular plate 24 uses external force and its own tilt angle to push the rack 20, so that the two racks 20 use the guiding effect of the T-slot 21 and the T-plate 22 to translate in two opposite directions, respectively, upward and downward. At the same time, the rack 20 will use the meshing effect to push the tooth block 19 during the translation process, so that the tooth block 19 uses external force to push the two push rods 15 to rotate ninety degrees in opposite directions under the support of the pull plate 8, so that the pull plate 8 can drive the connecting plate 16 and the cotton brush 17 to rotate ninety degrees together, so that the cotton brush 17 can be in contact with the photocatalytic sheet 2, so as to move and clean the photocatalytic sheet 2;

[0151] When the multi-stage electric rod contracts after being extended, the tension on the elastic rope 25 will disappear, and then it will rebound, thereby eliminating the external force applied to the triangular plate 24 and the rack 20. Subsequently, the torsion spring 18 will use the rebound force under the support of the pull plate 8 to push the push rod 15 to rotate ninety degrees in the direction close to the high-density compressed cotton. During the rotation process, the push rod 15 will drive the cotton brush 17 to contact the high-density compressed cotton plate 33, and under the action of the rotating external force, it will be resisted and squeezed and deformed by the high-density compressed cotton plate 33, thereby bypassing the high-density compressed cotton plate 33 and moving to the bottom thereof. The staff needs to install the threaded cover 35 in advance. Remove it, open the opening on the end cover 34, and then inject the cleaning liquid (alcohol) into the end cover 34 and the storage box 31 from this position, so that the cotton strip 32 can absorb the cleaning liquid and transfer it to the high-density compressed cotton plate 33. The high-density compressed cotton plate 33 will absorb the cleaning liquid. When the high-density compressed cotton plate 33 is saturated, the cleaning liquid will seep out. During the rotation of the cotton brush 17 and the contact with the high-density compressed cotton plate 33, the cotton brush 17 will adhere to the cleaning liquid on the high-density compressed cotton plate 33, so that the cotton brush 17 can cooperate with the cleaning liquid (alcohol) to clean the photocatalytic sheet 2 during the cleaning process, thereby improving the cleaning effect.

[0152] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A low-resistance energy-saving photocatalytic purifier, characterized in that: Includes catalytic cartridge for air circulation, and also includes: The photocatalytic unit is arranged in the catalytic cylinder to catalytically purify the air; The cleaning part is movably arranged in the catalytic cylinder and penetrates the catalytic cylinder, and can contact the light-catalyzing part to wipe and clean the light-catalyzing part; The cleaning pushing part is arranged in the catalytic cylinder and connected to the cleaning part to push out the cleaning debris; The smearing portion is provided through one side of the catalytic cylinder and can contact the cleaning portion to apply the cleaning liquid to the cleaning portion; The photocatalytic unit includes a photocatalytic sheet arranged in a catalytic tube and having a wavy structure, and an ultraviolet lamp arranged in the catalytic tube and located at the center line of the catalytic tube to evenly irradiate the photocatalytic sheet; The cleaning part includes pull plates symmetrically arranged at both ends of the catalytic cylinder and connected to the catalytic cylinder in a translational guide manner, and a multi-stage electric cylinder fixed to one side of the catalytic cylinder by a fixing component, and also includes a pull rope with one end connected to the telescopic end of the multi-stage electric cylinder by a connecting component, and the other end fixedly connected to the pull plate, and two push rods rotatably arranged through the pull plate, and the outer side of the push rod is provided with a cotton brush, and is wavy in shape to cooperate with the photocatalytic sheet; The pushing and cleaning part includes a channel between the end of the photocatalytic sheet away from the multi-stage electric cylinder and the catalytic cylinder, a push plate elastically arranged in the channel, and a traction rope connected to the pull plate through a connecting component; The applying part includes an elastic rope that passes through the pull plate and is connected to the end of the pull rope, and an overturning part that engages with the push rod and is connected to the elastic rope to flip the cotton brush. It also includes a storage box arranged on the outside of the catalytic cylinder, which passes through the storage box and a high-density compressed cotton plate on one side of the catalytic cylinder and is located on the cotton brush.

2. The low-resistance energy-saving photocatalytic purifier according to claim 1, characterized in that: The photocatalytic unit includes an adsorption member and a catalytic member. The catalytic member passes through the catalytic cylinder and is symmetrically arranged and located at the center line of the catalytic cylinder to irradiate the catalytic adsorption member. The adsorption member is arranged on the inner wall of the catalytic cylinder to adsorb formaldehyde. The adsorption member includes: There are two photocatalytic sheets, one of which is fixed on the inner side of the bottom wall of the catalytic tube, and the other is fixed on the inner side of the top wall of the catalytic tube; The photocatalytic sheet is made of aluminum, has a height of 10 mm, and a corrugated width of 33 mm, so as to increase the loading area.

3. The low-resistance energy-saving photocatalytic purifier according to claim 2, characterized in that: The catalytic element comprises: There are two lamp holders, which are symmetrically arranged on one side of the catalytic tube and located at the center line of the catalytic tube; There are two UV lamps, each plugged into a lamp holder and having a diameter of 15 mm. The distance between the two UV lamps is 43 mm to form a uniform illumination field; The two lamp holders and the ultraviolet lamp are arranged in parallel.

4. The low-resistance energy-saving photocatalytic purifier according to claim 3, characterized in that: The cleaning part includes a guide and a wiping part. The guide is arranged at the end of the catalytic cylinder and is located on the outside. It is connected to the guide of the catalytic cylinder and can pull the wiping part. The wiping part is symmetrically arranged in the catalytic cylinder and contacts the adsorption part to wipe and clean the adsorption part. The guide includes: There are four guide rails, which are symmetrically opened at both ends of the catalytic cylinder; A guide block is slidably arranged on the inner side of the guide rail; A connecting rod, one end of which is inserted into the inner side of the guide rail and fixedly connected to the guide block; There are two pull plates, which are fixedly connected to the other end of the connecting rod; A spring, one end of which is fixed to one side of the pull plate.

5. The low-resistance energy-saving photocatalytic purifier according to claim 4, characterized in that: The rubbing piece includes: A through hole is opened through the interior of the catalytic cylinder and is located on a side away from the multi-stage electric cylinder; A perforation is provided through the catalytic cylinder and is located on a side close to the multi-stage electric cylinder; The pull rope is movable through the through hole and the perforation arrangement; A connecting plate is fixed on the sides of the two push rods that are close to each other; The cotton brush is fixedly connected to the connecting plate.

6. The low-resistance energy-saving photocatalytic purifier according to claim 5, characterized in that: The push cleaning unit includes: L-plate, fixed to the rear end of the catalytic cylinder; A tension spring, one end of which is fixed in the L-plate and the other end is connected to the push plate and is in a stretched state; The traction rope is located below the photocatalytic sheet and is connected to the pull plate through a connecting rod.

7. The low-resistance energy-saving photocatalytic purifier according to claim 6, characterized in that: The smearing part includes a pulling member and a coating storage member, wherein the pulling member is arranged through the pulling plate, and the coating storage member is arranged through the catalytic cylinder and is located on the cotton brush turning path to store the cleaning liquid on the cotton brush; The pulling member includes: A hole is formed through the pull plate on one side close to the pull rope; The pull rope movably passes through the hole and is connected to the elastic rope; Guide rod, movable through the pull plate setting; A triangular plate is fixed to the end of the guide rod and is connected to the end of the elastic rope away from the pull rope; The overturning part is connected to the rubbing part so as to overturn the cotton brush during the extension process of the electric cylinder.

8. The low-resistance energy-saving photocatalytic purifier according to claim 7, characterized in that: The overturning parts include: A torsion spring is sleeved on the outside of the push rod, one end of the torsion spring is connected to the pull plate through a fixing component, and the other end is fixed to the push rod; The tooth blocks are evenly fixed on the outside of the push rod; There are two racks, which are guided and connected to the two inclined surfaces of the triangle plate and are guided and connected to the pull plate; The rack is engaged with the gear block.

9. The low-resistance energy-saving photocatalytic purifier according to claim 8, characterized in that: The coating storage member comprises: The cotton strip is arranged through one side of the storage box close to the catalytic cylinder; The high-density compressed cotton plate is connected to the end of the cotton strip; The high-density compressed cotton plate has a wavy structure to cover the cotton brush; Storage and protection parts are arranged on the storage box.

10. The low-resistance energy-saving photocatalytic purifier according to claim 9, characterized in that: The storage and protection parts include: End cover, adhered and fixed on the storage box; Threaded cover, threaded connection through the top of the end cover; The air guide plate is fixed on the catalytic cylinder and connected to the other end of the spring.

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