Indoor formaldehyde detection and elimination equipment

Abstract

The invention discloses indoor formaldehyde detection and elimination equipment which comprises a supporting placement disc, a formaldehyde gas dissolution elimination mechanism, a gas flow adjusting mechanism, a spraying elimination mechanism and a gas-liquid mixing mechanism, the supporting placement disc is a hollow cavity with an opening in the upper end, and the formaldehyde gas dissolution elimination mechanism is arranged on the upper portion of the supporting placement disc; the gas flow adjusting mechanism is arranged on the lower portion of the formaldehyde gas dissolution eliminating mechanism and arranged in the supporting containing disc, the spraying eliminating mechanism is arranged on the upper portion of the formaldehyde gas dissolution eliminating mechanism, and the gas-liquid mixing mechanism is arranged on one side of the formaldehyde gas dissolution eliminating mechanism. The invention belongs to the field of formaldehyde detection and elimination equipment, and particularly relates to a device for continuously detecting the concentration of formaldehyde in air and automatically adjusting the flow of entering air according to the concentration of the formaldehyde, so that the formaldehyde is rapidly and thoroughly eliminated at a time.

Description

Technical Field

[0001] The present invention belongs to the technical field of formaldehyde detection and elimination equipment, and specifically refers to an indoor formaldehyde detection and elimination equipment. Background Art

[0002] Formaldehyde is a colorless and pungent gas, which has irritating effects on human eyes, nose, etc. Prolonged inhalation of formaldehyde causes great harm to the human body. After decoration, formaldehyde removal usually adopts long-term ventilation and plant removal, with low formaldehyde removal efficiency. And ventilation for formaldehyde removal is a passive way and cannot quickly and efficiently remove formaldehyde.

[0003] Photocatalyst is a general term for photocatalytic functional semiconductor materials represented by nanoscale titanium dioxide, and it is one of the safest materials for controlling indoor environmental pollution internationally.

[0004] Removing indoor formaldehyde requires continuous detection of the formaldehyde concentration in the air. When the concentration exceeds the standard, it is necessary to quickly and timely eliminate formaldehyde. Existing formaldehyde removal equipment cannot adjust the air flow rate entering the equipment according to the size of the formaldehyde concentration, and cannot quickly and completely eliminate formaldehyde at one time.

[0005] Therefore, an indoor formaldehyde detection and elimination equipment is needed to solve the above technical problems. Summary of the Invention

[0006] In view of the above situation, to overcome the defects of the prior art, the present invention provides an indoor formaldehyde detection and elimination equipment, which can continuously detect the formaldehyde concentration in the air and automatically adjust the air flow rate according to the formaldehyde concentration, so as to quickly and completely eliminate formaldehyde at one time.

[0007] The technical solution adopted by the present invention is as follows: The present invention provides an indoor formaldehyde detection and elimination equipment, including a support placement plate, a formaldehyde aerosol elimination mechanism, a gas flow rate adjustment mechanism, a spraying elimination mechanism and a gas-liquid mixing mechanism. The support placement plate is arranged as a hollow cavity with an open upper end. The formaldehyde aerosol elimination mechanism is arranged above the support placement plate. The gas flow rate adjustment mechanism is arranged below the formaldehyde aerosol elimination mechanism. The gas flow rate adjustment mechanism is arranged inside the support placement plate. The spraying elimination mechanism is arranged above the formaldehyde aerosol elimination mechanism. The gas-liquid mixing mechanism is arranged on one side of the formaldehyde aerosol elimination mechanism.

[0008] Further, the formaldehyde aerosol elimination mechanism includes a formaldehyde elimination cylinder, an ultraviolet lamp tube, an aerosol ventilation pipe, and an arc-shaped connection cavity. The formaldehyde elimination cylinder is arranged as a hollow cavity with an open upper end. The ultraviolet lamp tubes are arrayed on the inner bottom wall of the formaldehyde elimination cylinder. The inner bottom wall of the formaldehyde elimination cylinder is provided with arc-shaped ventilation holes, which are symmetrically arranged around the ultraviolet lamp tubes. The arc-shaped connection cavity is arranged at the arc-shaped ventilation holes on the inner bottom wall of the formaldehyde elimination cylinder. The aerosol ventilation pipe is arranged in an inverted U shape. One end of the aerosol ventilation pipe is arranged on the upper wall of the arc-shaped connection cavity. The photocatalyst solution is filled into the formaldehyde elimination cylinder, and the liquid level height of the photocatalyst solution is lower than the height of the aerosol ventilation pipe. According to the principle of the communicating vessel, the photocatalyst solution enters the aerosol ventilation pipe, but does not exceed the height of the aerosol ventilation pipe. Therefore, the photocatalyst solution does not enter the arc-shaped connection cavity and further does not enter the support placement tray.

[0009] Further, the gas flow rate adjustment mechanism includes a flow control motor, an adjustment drive shaft, an adjustment drive gear, an adjustment driven shaft, an adjustment driven gear, an arc-shaped sealing plate, and a support platform. The support platform is arranged at the center of the bottom wall of the formaldehyde elimination cylinder. One end of the adjustment drive shaft is arranged on the lower wall of the support platform, and the other end of the adjustment drive shaft penetrates through the bottom wall of the support placement tray. The adjustment drive gear is arranged on the adjustment drive shaft. The adjustment driven shafts are arrayed on the bottom wall of the formaldehyde elimination cylinder, and the adjustment driven shafts correspond to the ultraviolet lamp tubes one by one. The adjustment driven gears are arranged on the adjustment driven shafts. The adjustment driven gear close to the adjustment drive gear meshes with the adjustment drive gear, and the adjustment driven gears mesh successively. The arc-shaped sealing plates are symmetrically arranged on the upper end faces of the adjustment driven gears. The arc-shaped sealing plates are arranged on the bottom wall of the formaldehyde elimination cylinder, and the arc-shaped sealing plates correspond to the arc-shaped ventilation holes. The flow control motor is arranged at the center of the lower wall of the support placement tray, and the flow control motor is connected to the adjustment drive shaft.

[0010] Further, the spraying elimination mechanism includes a cover plate, a gas adapter, spraying branch pipes, and atomizing nozzles. The cover plate is arranged at the open upper end of the formaldehyde elimination cylinder. The gas adapter is arranged at the center of the lower wall of the cover plate. The spraying branch pipes are arrayed on the gas adapter. The atomizing nozzles are arrayed at the lower part of the spraying branch pipes. The photocatalyst solution sucked by the negative pressure liquid suction pipe is mixed with air and sprayed out from the atomizing nozzles. The atomized photocatalyst solution reacts with formaldehyde more fully and catalytically eliminates formaldehyde under the action of ultraviolet light.

[0011] Furthermore, in order to achieve double-layer elimination of formaldehyde, the gas-liquid mixing mechanism includes a first support plate, a second support plate, a gas connection head, an air filter cartridge, a negative pressure liquid suction pipe, a Venturi tube, a spraying air outlet pipe, a spraying air connection pipe, an aerosol charging pipe, and an air pump. The first support plate is arranged at the lower part of the outer wall of the formaldehyde elimination cylinder, the air pump is arranged on the upper wall of the first support plate, the second support plate is arranged at the lower part of the outer wall of the formaldehyde elimination cylinder, the second support plate is arranged above the first support plate, the air filter cartridge is arranged on the upper wall of the second support plate, and there is filter cotton in the air filter cartridge, which can filter dust and the like in the air to avoid contaminating and invalidating the photocatalyst solution. The Venturi tube is arranged at the upper end of the air filter cartridge. One end of the aerosol charging pipe is connected to the air pump, and the other end of the aerosol charging pipe is arranged on the side wall of the support placement plate. The gas connection head is arranged on the aerosol charging pipe. One end of the spraying air connection pipe is arranged on the gas connection head, and the other end of the spraying air connection pipe passes through the second support plate and is connected to the air filter cartridge. One end of the spraying air outlet pipe is connected to the outlet end of the Venturi tube, and the other end of the spraying air outlet pipe passes through the cover plate and is connected to the gas adapter. One end of the negative pressure liquid suction pipe is connected to the negative pressure end of the Venturi tube, and the other end of the negative pressure liquid suction pipe passes through the middle and lower part of the outer wall of the formaldehyde elimination cylinder. The photocatalyst solution sucked by the negative pressure liquid suction pipe is mixed with air.

[0012] Furthermore, a filtered air outlet pipe is arranged at the upper part of the outer wall of the formaldehyde elimination cylinder, and a droplet filter screen is arranged at the opening at the upper end of the filtered air outlet pipe.

[0013] Furthermore, the width dimension of the arc-shaped sealing plate is larger than the width dimension of the arc-shaped ventilation hole. The rotation of the arc-shaped sealing plate can change the covering and sealing length with the arc-shaped ventilation hole, thereby changing the amount of air passing through the arc-shaped ventilation hole.

[0014] Furthermore, a formaldehyde detector is arranged on the upper wall of the cover plate to detect the concentration of formaldehyde in the room at any time.

[0015] Furthermore, a controller is arranged at the lower part of the second support plate. The controller is electrically connected to the formaldehyde detector and the flow control motor, which is convenient for automatically eliminating formaldehyde after detection.

[0016] Furthermore, support legs are symmetrically arranged in pairs at the lower part of the support placement plate, and rollers are arranged at the lower parts of the support legs, which increases the flexibility of the equipment and facilitates movement.

[0017] The beneficial effects achieved by the present invention with the above structure are as follows:

[0018] 1. In the air-liquid mixing mechanism, on the one hand, the air pump fills air into the aerosol air supply pipe. Then, the air enters the photocatalyst solution in the formaldehyde elimination cylinder from the bottom of the photocatalyst solution through the arc-shaped ventilation holes. Under the action of ultraviolet light, formaldehyde is eliminated. On the other hand, the air pump fills air into the Venturi tube. Through the negative pressure effect of the Venturi tube, the photocatalyst solution is sucked in and mixed with the air. After being atomized by the atomizing nozzle, it is again under the action of ultraviolet light to eliminate formaldehyde for the second time;

[0019] 2. The formaldehyde detector transmits the detected concentration signal to the controller. The controller controls the gas flow regulating mechanism according to the concentration of formaldehyde. By adjusting the planetary transmission mechanism of the driving gear and the driven regulating gear, the arc-shaped sealing plate is arranged on the end face of the driven regulating gear. The driven regulating gear drives the arc-shaped sealing plate to rotate, thereby realizing the regulation of the ventilation volume of the arc-shaped ventilation holes. The arc-shaped ventilation holes are symmetrically arranged around the ultraviolet lamp tube, thus ensuring that the entering formaldehyde is fully eliminated;

[0020] 3. In the formaldehyde aerosol elimination mechanism, the liquid level height of the photocatalyst solution is lower than the height of the aerosol air supply pipe. Using the principle of communicating vessels, the photocatalyst solution enters the aerosol air supply pipe, but does not exceed the height of the aerosol air supply pipe. Therefore, the photocatalyst solution will not enter the arc-shaped connection cavity and will not enter the support placement tray. The ultraviolet lamp tube array is arranged on the inner bottom wall of the formaldehyde elimination cylinder, ensuring sufficient ultraviolet light illumination. And the aerosol air supply pipe is arranged around the ultraviolet lamp tube, ensuring that the entering formaldehyde is fully eliminated;

[0021] 4. In the spraying elimination mechanism, the Venturi tube mixes air and the photocatalyst solution and fills it into the spraying branch pipe. It enters and sprays out from the atomizing nozzle. The atomizing nozzle atomizes the photocatalyst solution, which can fully contact the uneliminated formaldehyde. Through the illumination of ultraviolet light, formaldehyde is eliminated for the second time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structural schematic diagram of an indoor formaldehyde detection and elimination device proposed by the present invention;

[0023] Figure 2 is a front view of an indoor formaldehyde detection and elimination device proposed by the present invention;

[0024] Figure 3 is an internal structural schematic diagram of the support placement tray of an indoor formaldehyde detection and elimination device proposed by the present invention;

[0025] Figure 4 is a three-dimensional structural schematic diagram of the gas flow regulating mechanism of an indoor formaldehyde detection and elimination device proposed by the present invention;

[0026] Figure 5Schematic three-dimensional structure diagram of the formaldehyde aerosol elimination mechanism of an indoor formaldehyde detection and elimination device proposed by the present invention;

[0027] Figure 6 Top view of the formaldehyde aerosol elimination mechanism of an indoor formaldehyde detection and elimination device proposed by the present invention;

[0028] Figure 7 Schematic structure diagram of the aerosol ventilation pipe of an indoor formaldehyde detection and elimination device proposed by the present invention;

[0029] Figure 8 Top view of the formaldehyde elimination cylinder of an indoor formaldehyde detection and elimination device proposed by the present invention;

[0030] Figure 9 Schematic three-dimensional structure diagram of the spraying and elimination mechanism of an indoor formaldehyde detection and elimination device proposed by the present invention.

[0031] Among them, 1. Support placement plate, 2. Formaldehyde aerosol elimination mechanism, 3. Gas flow regulation mechanism, 4. Spraying and elimination mechanism, 5. Gas-liquid mixing mechanism, 6. Formaldehyde elimination cylinder, 7. Ultraviolet lamp tube, 8. Aerosol ventilation pipe, 9. Arc connection cavity, 10. Arc ventilation hole, 11. Flow control motor, 12. Adjustment driving shaft, 13. Adjustment driving gear, 14. Adjustment driven shaft, 15. Adjustment driven gear, 16. Arc sealing plate, 17. Support platform, 18. Cover plate, 19. Gas adapter, 20. Spraying branch pipe, 21. Atomizing nozzle, 22. First support plate, 23. Second support plate, 24. Gas connection head, 25. Air filter cylinder, 26. Negative pressure liquid suction pipe, 27. Venturi tube, 28. Spraying air outlet pipe, 29. Spraying ventilation pipe, 30. Aerosol charging pipe, 31. Air pump, 32. Filtered air outlet pipe, 33. Droplet filter screen, 34. Formaldehyde detector, 35. Controller, 36. Support leg, 37. Roller.

[0032] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0035] As Figure 1 shown, the present invention provides an indoor formaldehyde detection and elimination device, including a support placement tray 1, a formaldehyde aerosol elimination mechanism 2, a gas flow regulation mechanism 3, a spraying elimination mechanism 4 and a gas-liquid mixing mechanism 5. The support placement tray 1 is arranged as a hollow cavity with an open upper end. The formaldehyde aerosol elimination mechanism 2 is arranged above the support placement tray 1. The gas flow regulation mechanism 3 is arranged below the formaldehyde aerosol elimination mechanism 2. The gas flow regulation mechanism 3 is arranged inside the support placement tray 1. The spraying elimination mechanism 4 is arranged above the formaldehyde aerosol elimination mechanism 2. The gas-liquid mixing mechanism 5 is arranged on one side of the formaldehyde aerosol elimination mechanism 2.

[0036] As Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 shown, the formaldehyde aerosol elimination mechanism 2 includes a formaldehyde elimination cylinder 6, an ultraviolet lamp tube 7, an aerosol ventilation pipe 8 and an arc connection cavity 9. The formaldehyde elimination cylinder 6 is arranged as a hollow cavity with an open upper end. The ultraviolet lamp tubes 7 are arranged in an array on the inner bottom wall of the formaldehyde elimination cylinder 6. An arc ventilation hole 10 is arranged on the inner bottom wall of the formaldehyde elimination cylinder 6, and the arc ventilation holes 10 are symmetrically arranged around the ultraviolet lamp tubes 7. The arc connection cavity 9 is arranged at the arc ventilation holes 10 on the inner bottom wall of the formaldehyde elimination cylinder 6. The aerosol ventilation pipe 8 is arranged in an inverted U shape. One end of the aerosol ventilation pipe 8 is arranged on the upper wall of the arc connection cavity 9. The photocatalyst solution is filled into the formaldehyde elimination cylinder 6, and the liquid level height of the photocatalyst solution is lower than the height of the aerosol ventilation pipe 8. According to the principle of the communicating vessel, the photocatalyst solution enters the aerosol ventilation pipe 8, but does not exceed the height of the aerosol ventilation pipe 8. Therefore, the photocatalyst solution does not enter the arc connection cavity 9 and further does not enter the support placement tray 1.

[0037] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown in the figure, the gas flow regulating mechanism 3 includes a flow control motor 11, an adjusting drive shaft 12, an adjusting drive gear 13, an adjusting driven shaft 14, an adjusting driven gear 15, an arc-shaped sealing plate 16 and a support platform 17. The support platform 17 is provided at the center of the bottom wall of the formaldehyde elimination cylinder 6. One end of the adjusting drive shaft 12 is provided on the lower wall of the support platform 17, and the other end of the adjusting drive shaft 12 penetrates through the bottom wall of the support and placement disc 1. The adjusting drive gear 13 is provided on the adjusting drive shaft 12. The adjusting driven shafts 14 are arranged in an array on the bottom wall of the formaldehyde elimination cylinder 6, and the adjusting driven shafts 14 correspond to the ultraviolet lamps 7 one by one. The adjusting driven gears 15 are provided on the adjusting driven shafts 14. The adjusting driven gear 15 close to the adjusting drive gear 13 meshes with the adjusting drive gear 13, and the adjusting driven gears 15 are sequentially meshed. The arc-shaped sealing plates 16 are symmetrically provided on the upper end surfaces of the adjusting driven gears 15. The arc-shaped sealing plates 16 are provided on the bottom wall of the formaldehyde elimination cylinder 6, and the arc-shaped sealing plates 16 correspond to the arc-shaped ventilation holes 10. The flow control motor 11 is provided at the center of the lower wall of the support and placement disc 1, and the flow control motor 11 is connected to the adjusting drive shaft 12.

[0038] As Figure 1 , Figure 2 , Figure 9 shown in the figure, the spraying and elimination mechanism 4 includes a cover plate 18, a gas adapter 19, spraying branch pipes 20 and atomizing nozzles 21. The cover plate 18 is provided at the upper opening of the formaldehyde elimination cylinder 6. The gas adapter 19 is provided at the center of the lower wall of the cover plate 18. The spraying branch pipes 20 are arranged in an array on the gas adapter 19. The atomizing nozzles 21 are arranged in an array at the lower part of the spraying branch pipes 20. The photocatalyst solution sucked by the negative pressure liquid suction pipe 26 is mixed with air and sprayed out from the atomizing nozzles 21. The atomized photocatalyst solution reacts with formaldehyde more fully and catalytically eliminates formaldehyde under the action of ultraviolet rays.

[0039] As Figure 1 , Figure 2As shown in the figure, in order to achieve the double-layer elimination of formaldehyde, the gas-liquid mixing mechanism 5 includes a first support plate 22, a second support plate 23, a gas connection head 24, an air filter cartridge 25, a negative pressure liquid suction pipe 26, a Venturi tube 27, a spraying air outlet pipe 28, a spraying air pipe 29, an aerosol charging pipe 30 and an air pump 31. The first support plate 22 is arranged at the lower part of the outer wall of the formaldehyde elimination cylinder 6, the air pump 31 is arranged on the upper wall of the first support plate 22, the second support plate 23 is arranged at the lower part of the outer wall of the formaldehyde elimination cylinder 6, the second support plate 23 is arranged above the first support plate 22, the air filter cartridge 25 is arranged on the upper wall of the second support plate 23, and there is filter cotton in the air filter cartridge 25, which can filter dust and the like in the air to avoid contaminating and invalidating the photocatalyst solution. The Venturi tube 27 is arranged at the upper end of the air filter cartridge 25. One end of the aerosol charging pipe 30 is connected to the air pump 31, and the other end of the aerosol charging pipe 30 is arranged on the side wall of the support and placement plate 1. The gas connection head 24 is arranged on the aerosol charging pipe 30. One end of the spraying air pipe 29 is arranged on the gas connection head 24, and the other end of the spraying air pipe 29 penetrates through the second support plate 23 and is connected to the air filter cartridge 25. One end of the spraying air outlet pipe 28 is connected to the outlet end of the Venturi tube 27, and the other end of the spraying air outlet pipe 28 penetrates through the cover plate 18 and is connected to the gas adapter 19. One end of the negative pressure liquid suction pipe 26 is connected to the negative pressure end of the Venturi tube 27, and the other end of the negative pressure liquid suction pipe 26 penetrates through the middle and lower part of the outer wall of the formaldehyde elimination cylinder 6. The photocatalyst solution sucked by the negative pressure liquid suction pipe 26 is mixed with air.

[0040] As Figure 1 、 Figure 2 shown, a filtered air outlet pipe 32 is arranged at the upper part of the outer wall of the formaldehyde elimination cylinder 6, and a droplet filter screen 33 is arranged at the opening at the upper end of the filtered air outlet pipe 32.

[0041] As Figure 4 、 Figure 8 shown, the width dimension of the arc-shaped sealing plate 16 is larger than the width dimension of the arc-shaped ventilation hole 10. The rotation of the arc-shaped sealing plate 16 can change the covering and sealing length with the arc-shaped ventilation hole 10, thereby changing the amount of air passing through the arc-shaped ventilation hole 10.

[0042] As Figure 1 、 Figure 2 shown, a formaldehyde detector 34 is arranged on the upper wall of the cover plate 18 to detect the concentration of indoor formaldehyde at any time.

[0043] As Figure 1 、 Figure 2 shown, a controller 35 is arranged at the lower part of the second support plate 23. The controller 35 is electrically connected to the formaldehyde detector 34 and the controller 35 is electrically connected to the flow control motor 11, which is convenient for automatically eliminating formaldehyde after detection.

[0044] As Figure 1As shown in the figure, two pairs of symmetric support legs 36 are provided at the lower part of the support placement plate 1, and rollers 37 are provided at the lower part of the support legs 36, which increases the flexibility of the device and facilitates movement.

[0045] During specific use, the device is moved into the required indoor room. The cover plate 18 is opened, and the photocatalyst solution is filled into the formaldehyde elimination box. The liquid level height of the photocatalyst solution is lower than the height of the aerosol ventilation pipe 8. The formaldehyde detector 34 is turned on. When the detected formaldehyde concentration exceeds the standard limit, the formaldehyde detector 34 transmits a signal to the controller 35. The controller 35 turns on the flow control motor 11 according to the formaldehyde concentration. The flow control motor 11 drives the adjustment drive shaft 12 to rotate. The adjustment drive shaft 12 drives the adjustment drive gear 13 to rotate. The adjustment drive gear 13 drives the adjustment driven gear 15 to rotate. The adjustment driven gear 15 drives the arc-shaped sealing plate 16 to rotate. The arc-shaped sealing plate 16 can change the contact degree with the arc-shaped ventilation hole 10, thereby controlling the air volume entering the arc-shaped ventilation hole 10. The controller 35 turns on the air pump 31. The air pump 31 passes the air into the aerosol filling pipe 30, enters the support placement plate 1 through the aerosol filling pipe 30. The air enters the arc-shaped connection cavity 9 through the adjusted arc-shaped ventilation hole 10, then enters the aerosol ventilation pipe 8 from the arc-shaped connection cavity 9, enters the formaldehyde elimination cylinder 6 through the aerosol ventilation pipe 8. Under the action of the ultraviolet lamp tube 7, the photocatalyst solution undergoes a catalytic reaction to eliminate the formaldehyde in the air. At the same time, the air pump 31 passes the air into the spraying ventilation pipe 29, enters the air filter cylinder 25 through the spraying ventilation pipe 29. The filtered air enters the Venturi tube 27. The Venturi tube 27 generates negative pressure at the negative pressure liquid suction pipe 26. The photocatalyst solution in the formaldehyde elimination cylinder 6 enters the Venturi tube 27 through the negative pressure liquid suction pipe 26. Then the photocatalyst solution is mixed with the air, and then enters the gas adapter 19 through the spraying outlet pipe 28. The air entering from the arc-shaped ventilation hole 10 is sprayed out from the atomizing nozzle 21 through the spraying branch pipe and enters the photocatalyst solution. After the formaldehyde in the air is eliminated, some uneliminated formaldehyde will precipitate from the photocatalyst solution. The photocatalyst solution sprayed out from the atomizing nozzle 21 undergoes a catalytic reaction under the action of the ultraviolet lamp to further eliminate the uneliminated formaldehyde. Then the purified air is sprayed out from the filtered outlet pipe 32 through the droplet filter screen 33.

[0046] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0048] The above describes the present invention and its embodiments. Such a description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention, design similar structural modes and embodiments without creative efforts, they should all fall within the protection scope of the present invention.

Claims

1. An indoor formaldehyde detection and elimination device, characterized in that: including a support placement tray (1) which is arranged as a hollow cavity with an open upper end; a formaldehyde aerosol elimination mechanism (2) which is arranged above the support placement tray (1); a gas flow rate adjustment mechanism (3) which is arranged below the formaldehyde aerosol elimination mechanism (2) and within the support placement tray (1); a spraying elimination mechanism (4) which is arranged above the formaldehyde aerosol elimination mechanism (2); and a gas-liquid mixing mechanism (5) which is arranged on one side of the formaldehyde aerosol elimination mechanism (2).

2. The indoor formaldehyde detection and elimination device according to claim 1, characterized in that: The formaldehyde aerosol elimination mechanism (2) includes a formaldehyde elimination cylinder (6), ultraviolet lamp tubes (7), an aerosol ventilation pipe (8), and an arc-shaped connection cavity (9). The formaldehyde elimination cylinder (6) is arranged as a hollow cavity with an open upper end. The ultraviolet lamp tubes (7) are arranged in an array on the inner bottom wall of the formaldehyde elimination cylinder (6). An arc-shaped ventilation hole (10) is provided on the inner bottom wall of the formaldehyde elimination cylinder (6), and the arc-shaped ventilation hole (10) is symmetrically arranged around the ultraviolet lamp tubes (7). The arc-shaped connection cavity (9) is arranged at the arc-shaped ventilation hole (10) on the inner bottom wall of the formaldehyde elimination cylinder (6). The aerosol ventilation pipe (8) is arranged in an inverted U shape, and one end of the aerosol ventilation pipe (8) is arranged on the upper wall of the arc-shaped connection cavity (9).

3. An indoor formaldehyde detection and elimination device according to claim 2, characterized in that: The gas flow rate adjustment mechanism (3) includes a flow control motor (11), an adjustment drive shaft (12), an adjustment drive gear (13), an adjustment driven shaft (14), an adjustment driven gear (15), an arc-shaped sealing plate (16), and a support platform (17). The support platform (17) is arranged at the center of the bottom wall of the formaldehyde elimination cylinder (6). One end of the adjustment drive shaft (12) is arranged on the lower wall of the support platform (17), and the other end of the adjustment drive shaft (12) penetrates through the bottom wall of the support placement tray (1). The adjustment drive gear (13) is arranged on the adjustment drive shaft (12). The adjustment driven shafts (14) are arranged in an array on the bottom wall of the formaldehyde elimination cylinder (6), and the adjustment driven shafts (14) correspond to the ultraviolet lamp tubes (7) one by one. The adjustment driven gears (15) are arranged on the adjustment driven shafts (14). The adjustment driven gear (15) closest to the adjustment drive gear (13) meshes with the adjustment drive gear (13), and the adjustment driven gears (15) are meshed in sequence. The arc-shaped sealing plates (16) are symmetrically arranged on the upper end surfaces of the adjustment driven gears (15), and the arc-shaped sealing plates (16) are arranged on the bottom wall of the formaldehyde elimination cylinder (6), corresponding to the arc-shaped ventilation holes (10). The flow control motor (11) is arranged at the center of the bottom wall of the support placement tray (1), and the flow control motor (11) is connected to the adjustment drive shaft (12).

4. An indoor formaldehyde detection and elimination device according to claim 3, characterized in that: The spraying and eliminating mechanism (4) includes a cover plate (18), a gas adapter (19), spraying branch pipes (20) and atomizing nozzles (21). The cover plate (18) is arranged at the upper opening of the formaldehyde elimination cylinder (6). The gas adapter (19) is arranged at the center of the lower wall of the cover plate (18). The spraying branch pipes (20) are arranged in an array on the gas adapter (19). The atomizing nozzles (21) are arranged in an array at the lower part of the spraying branch pipes (20).

5. An indoor formaldehyde detection and elimination device according to claim 4, characterized in that: The gas-liquid mixing mechanism (5) includes a first support plate (22), a second support plate (23), a gas connection head (24), an air filter cylinder (25), a negative pressure liquid suction pipe (26), a Venturi tube (27), a spraying outlet gas pipe (28), a spraying ventilation pipe (29), an aerosol charging pipe (30) and an air pump (31). The first support plate (22) is arranged at the lower part of the outer wall of the formaldehyde elimination cylinder (6). The air pump (31) is arranged on the upper wall of the first support plate (22). The second support plate (23) is arranged at the lower part of the outer wall of the formaldehyde elimination cylinder (6). The second support plate (23) is arranged above the first support plate (22). The air filter cylinder (25) is arranged on the upper wall of the second support plate (23). The Venturi tube (27) is arranged at the upper end of the air filter cylinder (25). One end of the aerosol charging pipe (30) is connected to the air pump (31). The other end of the aerosol charging pipe (30) is arranged on the side wall of the support and placement plate (1). The gas connection head (24) is arranged on the aerosol charging pipe (30). One end of the spraying ventilation pipe (29) is arranged on the gas connection head (24). The other end of the spraying ventilation pipe (29) passes through the second support plate (23) and is connected to the air filter cylinder (25). One end of the spraying outlet gas pipe (28) is connected to the outlet end of the Venturi tube (27). The other end of the spraying outlet gas pipe (28) passes through the cover plate (18) and is connected to the gas adapter (19). One end of the negative pressure liquid suction pipe (26) is connected to the negative pressure end of the Venturi tube (27). The other end of the negative pressure liquid suction pipe (26) passes through the middle and lower part of the outer wall of the formaldehyde elimination cylinder (6).

6. The indoor formaldehyde detection and elimination device according to claim 5, characterized in that: A filter outlet gas pipe (32) is arranged at the upper part of the outer wall of the formaldehyde elimination cylinder (6). A droplet filter screen (33) is arranged at the upper opening of the filter outlet gas pipe (32).

7. An indoor formaldehyde detection and elimination device according to claim 6, characterized in that: The width dimension of the arc-shaped sealing plate (16) is larger than the width dimension of the arc-shaped ventilation hole (10).

8. An indoor formaldehyde detection and elimination device according to claim 7, characterized in that: A formaldehyde detector (34) is arranged on the upper wall of the cover plate (18).

9. An indoor formaldehyde detection and elimination device according to claim 8, characterized in that: A controller (35) is arranged at the lower part of the second support plate (23). The controller (35) is electrically connected to the formaldehyde detector (34). The controller (35) is electrically connected to the flow control motor (11).

10. An indoor formaldehyde detection and elimination device according to claim 9, characterized in that: Support legs (36) are symmetrically arranged in pairs at the lower part of the support and placement plate (1). Wheels (37) are arranged at the lower parts of the support legs (36).

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