A noise reduction air duct for smoke purifier
By designing noise reduction air ducts in the smoke purifier and using multiple cavity structures and sound-absorbing materials, the problem of noise pollution in traditional smoke purifiers is solved, achieving a lower noise level and a more comfortable working environment.
Patent Information
- Application Number
- CN202421118217.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-05-22
AI Technical Summary
When the traditional smoke purifier is running, the air duct will produce a certain decibel of noise, affecting the workers' nervous system and forming noise pollution, which cannot provide workers with a comfortable working environment.
A smoke purifier noise reduction air duct is designed, including noise reduction air duct, upper sound absorbing cotton, lower sound absorbing cotton, flow guide plate and vertical pressure resistor plate. Through the assembly of multiple cavity structures and the use of sound absorbing materials, noise is isolated and absorbed, and exhaust air speed and dispersion are reduced.
It effectively reduces the noise level of the smoke purifier, reduces the impact on the physical and mental health of workers, provides a more comfortable working environment, and reduces noise pollution.
Smart Images
Figure CN222720073U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the relevant field of smoke purifiers, in particular to a noise reduction air duct for a smoke purifier. Background Art
[0002] Smoke purifiers are mainly used for the purification of smoke and dust generated in welding, polishing, cutting, grinding and other processes, as well as the recovery of rare metals and precious materials. They can purify a large number of fine metal particles suspended in the air that are harmful to the human body. They have the characteristics of high purification efficiency, low noise, flexible use and small footprint. They are suitable for arc welding, carbon dioxide shielded welding, MAG welding, carbon arc gouging welding, gas fusion welding, special welding and other workplaces that generate smoke.
[0003] There are still some deficiencies in the use of smoke purifiers in the prior art. When traditional smoke purifiers are in operation, the air duct will generate a certain decibel of noise. Workers are in a noisy environment for a long time, which will affect the workers' nervous system, cause noise pollution, and fail to provide workers with a comfortable working environment. Utility Model Content
[0004] The purpose of the utility model is to provide a noise-reducing air duct for a smoke purifier, so as to solve the problem that the traditional smoke purifier proposed in the above background technology will generate a certain decibel of noise in the air duct during operation, and workers will be in a noisy environment for a long time, which will affect the workers' nervous system, form noise pollution, and cannot provide workers with a comfortable working environment.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a noise reduction air duct of a smoke purifier, comprising a smoke purifier body, wherein a fan mounting groove, a filter plate and a noise reduction groove are sequentially arranged inside the smoke purifier body from bottom to top, a sound insulation board is arranged on the inner wall of the fan mounting groove, a fan is arranged inside the fan mounting groove, a noise reduction air duct is arranged at the middle position inside the noise reduction groove, the top of the noise reduction air duct is connected with a noise reduction cover, an upper sound-absorbing cotton is arranged inside the noise reduction cover, a noise reduction hole is arranged at a position where the surface of the noise reduction air duct is aligned with the upper sound-absorbing cotton, a guide plate is arranged on the inner wall of the noise reduction air duct, an inspection cover is arranged on the top of the smoke purifier body, and the inspection cover is fixedly connected to the smoke purifier body through a folding locking rod and a locking nose, a smoking pipe is arranged above the noise reduction cover, the smoking pipe is connected to the noise reduction cover through a mounting flange, and the mounting flange is fixedly connected to the noise reduction air duct through a small fixing bolt, a smoking cover is arranged at one end of the smoking pipe, and a universal self-locking wheel is arranged at the bottom of the smoke purifier body.
[0006] In a further embodiment, the bottom end of the noise reduction air duct and the bottom of the noise reduction groove are fixedly connected through an assembly inlay head and an assembly inlay opening, a rubber sealing ring is provided on the surface of the assembly inlay head, a lower sound-absorbing cotton is provided inside the assembly inlay head, and the lower sound-absorbing cotton is connected to the assembly inlay head by gluing.
[0007] In a further embodiment, the noise reduction air duct is connected to the inspection cover by inlaying through a fixing port, a vertical pressure baffle plate is provided at the lower end of the interior of the noise reduction air duct, and the vertical pressure baffle plate is connected to the noise reduction air duct by welding.
[0008] In a further embodiment, a plurality of sound absorbing holes are provided inside the guide plate, and the guide plate is configured as a downwardly inclined structure.
[0009] In a further embodiment, the upper sound-absorbing cotton is connected to the noise reduction air duct by inlaying, the upper sound-absorbing cotton is connected to the noise reduction cover by gluing, and the cross-section of the upper sound-absorbing cotton is set to a conical structure.
[0010] In a further embodiment, a sealing plate is provided at the bottom of the noise reduction cover, and the sealing plate is fixedly connected to the inspection cover by large fixing bolts.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] In the utility model, upper sound-absorbing cotton and lower sound-absorbing cotton are respectively provided at the upper and lower ends of the noise reduction air duct, and the upper sound-absorbing cotton is provided inside the noise reduction cover, so that multiple cavity structures are assembled into one, which can isolate the noise inside, and the sound transmitted to the outside can be absorbed by the upper sound-absorbing cotton and the lower sound-absorbing cotton, thereby enhancing the noise reduction effect of the noise reduction air duct, and a guide plate and a vertical pressure-blocking plate are provided inside the noise reduction air duct, which can guide and hinder the transported wind, reduce and disperse the exhaust speed, thereby reducing internal noise, reducing noise pollution to the environment, reducing the impact on the physical and mental health of workers, and providing workers with a comfortable working environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the structure of a noise reduction air duct of a smoke purifier of the utility model;
[0014] Figure 2 This is a schematic diagram of the internal structure of the noise reduction air duct of the utility model;
[0015] Figure 3 It is a top view of the noise reduction cover of the utility model;
[0016] Figure 4 This is a front view of the noise reduction air duct of the utility model;
[0017] Figure 5It is a schematic diagram of the internal structure of the assembly mounting head of the utility model;
[0018] Figure 6 It is a top view of the assembly inlay opening of the utility model;
[0019] Figure 7 It is a top view of the fixing port of the utility model.
[0020] In the figure: 1. Smoke pipe; 2. Mounting flange; 3. Smoke hood; 4. Noise reduction hood; 5. Small fixing bolts; 6. Large fixing bolts; 7. Inspection cover; 8. Lock nose; 9. Folding locking rod; 10. Noise reduction groove; 11. Noise reduction air duct; 12. Smoke purifier body; 13. Filter plate; 14. Fan mounting groove; 15. Sound insulation board; 16. Fan; 17. Universal self-locking wheel; 18. Upper sound-absorbing cotton; 19. Guide plate; 20. Assembly inlay head; 21. Lower sound-absorbing cotton; 22. Vertical pressure-blocking plate; 23. Sealing plate; 24. Noise reduction hole; 25. Rubber sealing ring; 26. Assembly inlay opening; 27. Fixing opening. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] See also Figure 1-7, the utility model provides an embodiment: a noise reduction air duct of a smoke purifier, comprising a smoke purifier body 12, the interior of the smoke purifier body 12 is provided with a fan mounting slot 14, a filter plate 13 and a noise reduction slot 10 from bottom to top, the inner wall of the fan mounting slot 14 is provided with a sound insulation board 15, the interior of the fan mounting slot 14 is provided with a fan 16, a noise reduction air duct 11 is provided in the middle position of the interior of the noise reduction slot 10, the upper part of the noise reduction air duct 11 is connected to the noise reduction cover 4, the interior of the noise reduction cover 4 is provided with an upper sound-absorbing cotton 18, the surface of the noise reduction air duct 11 is aligned with the upper sound-absorbing cotton 18. A noise reduction hole 24 is provided at a position, and a guide plate 19 is provided on the inner wall of the noise reduction air duct 11, and a plurality of sound-absorbing holes are provided in the guide plate 19, and the guide plate 19 is set to a downwardly inclined structure, and the downwardly inclined structure can improve the effect of diversion, and an inspection cover 7 is provided on the top of the smoke purifier body 12, and the inspection cover 7 and the smoke purifier body 12 are connected by a folding locking rod 9 is fixedly connected with the lock nose 8, a smoking pipe 1 is arranged above the noise reduction cover 4, the smoking pipe 1 is connected with the noise reduction cover 4 through the mounting flange 2, and the mounting flange 2 is fixedly connected with the noise reduction air duct 11 through the small fixing bolts 5, a smoking cover 3 is arranged at one end of the smoking pipe 1, a universal self-locking wheel 17 is arranged at the bottom of the smoke purifier body 12, a sound insulation board 15 is used to eliminate the noise generated by the operation of the fan 16, a noise reduction groove 10 is used to install the noise reduction air duct 11, the noise reduction air duct 11 is used to reduce the noise of the air duct, the noise reduction cover 4 is used to reduce and eliminate the noise at the connection position of the noise reduction air duct 11 and the smoking pipe 1, the upper sound-absorbing cotton 18 is used to absorb the noise transmitted to the outside by the noise reduction air duct 11, the inspection cover 7 is used to open the top of the smoke purifier body 12 for easy inspection and maintenance of the interior, the guide plate 19 is used to guide the direction of exhaust air, and the smoking hood 3 is used to inhale smoke.
[0023] The bottom end of the noise reduction air duct 11 and the bottom of the noise reduction groove 10 are fixedly connected through an assembly inlay head 20 and an assembly inlay opening 26. A rubber sealing ring 25 is provided on the surface of the assembly inlay head 20. A lower sound-absorbing cotton 21 is provided inside the assembly inlay head 20. The lower sound-absorbing cotton 21 is connected to the assembly inlay head 20 by gluing. The connection between the assembly inlay head 20 and the assembly inlay opening 26 facilitates the assembly of the bottom end of the noise reduction air duct 11 with the noise reduction groove 10. The rubber sealing ring 25 is used to increase the sealing of the connection between the assembly inlay head 20 and the assembly inlay opening 26.
[0024] The noise reduction air duct 11 and the inspection cover 7 are inlaid and connected through a fixing port 27. A vertical pressure baffle plate 22 is provided at the lower end of the interior of the noise reduction air duct 11, and the vertical pressure baffle plate 22 is connected to the noise reduction air duct 11 by welding. The vertical pressure baffle plate 22 is used to reduce the wind speed and disperse it into multiple air vents, thereby increasing a certain amount of resistance and reducing internal noise.
[0025] The upper sound-absorbing cotton 18 is connected to the noise reduction air duct 11 by inlaying, and the upper sound-absorbing cotton 18 is connected to the noise reduction cover 4 by gluing, and the cross-section of the upper sound-absorbing cotton 18 is set to a conical structure, which is convenient for combining the noise reduction air duct 11 and the upper sound-absorbing cotton 18 by inlaying connection; a sealing plate 23 is provided at the bottom of the noise reduction cover 4, and the sealing plate 23 is fixedly connected to the inspection cover 7 by a large fixing bolt 6, and the sealing plate 23 is used to seal the position where the noise reduction cover 4 is connected to the inspection cover 7.
[0026] Working principle: When in use, the noise reduction air duct 11 is installed in the noise reduction groove 10 by connecting the assembly embedding head 20 with the assembly embedding opening 26, and the inspection cover 7 is covered so that the upper end of the noise reduction air duct 11 is embedded in the fixing opening 27, and the position of the inspection cover 7 is fixed by embedding the folding locking rod 9 and the locking nose 8, and then the noise reduction cover 4 is embedded and installed on the top of the inspection cover 7, so that the top of the noise reduction air duct 11 is embedded and installed inside the noise reduction cover 4, and the noise reduction cover 4 is fixed by the large fixing bolts 6, and the smoking pipe 1 is installed on the top of the noise reduction cover 4 by the mounting flange 2, and the smoking hood 3 is aligned with the desired smoke exhaust position, and the internal wind force is increased by the fan 16, and the smoke is sucked from the smoking pipe 1 through the smoking hood 3, and the noise is eliminated through the noise reduction air duct 11.
[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A noise reduction air duct for a smoke purifier, comprising a smoke purifier body (12), characterized in that: The interior of the smoke purifier body (12) is provided with a fan installation groove (14), a filter plate (13) and a noise reduction groove (10) in order from bottom to top; a sound insulation plate (15) is provided on the inner wall of the fan installation groove (14); a fan (16) is provided inside the fan installation groove (14); a noise reduction air duct (11) is provided at the middle position inside the noise reduction groove (10); the top of the noise reduction air duct (11) is connected to the noise reduction cover (4); an upper sound absorbing cotton (18) is provided inside the noise reduction cover (4); a noise reduction hole (24) is provided on the surface of the noise reduction air duct (11) at a position aligned with the upper sound absorbing cotton (18); The inner wall of the noise air duct (11) is provided with a guide plate (19); the top of the smoke purifier body (12) is provided with an inspection cover (7), and the inspection cover (7) and the smoke purifier body (12) are fixedly connected via a folding lock rod (9) and a lock nose (8); a smoking pipe (1) is provided above the noise reduction cover (4), the smoking pipe (1) and the noise reduction cover (4) are connected via a mounting flange (2), and the mounting flange (2) and the noise reduction air duct (11) are fixedly connected via small fixing bolts (5); a smoking cover (3) is provided at one end of the smoking pipe (1), and a universal self-locking wheel (17) is provided at the bottom of the smoke purifier body (12).
2. The noise reduction air duct of a smoke purifier according to claim 1, characterized in that: The bottom end of the noise reduction air duct (11) and the bottom of the noise reduction groove (10) are fixedly connected via an assembly mounting head (20) and an assembly mounting opening (26); a rubber sealing ring (25) is provided on the surface of the assembly mounting head (20); a lower sound absorbing cotton (21) is provided inside the assembly mounting head (20); and the lower sound absorbing cotton (21) and the assembly mounting head (20) are connected by gluing.
3. The noise reduction air duct of a smoke purifier according to claim 1, characterized in that: The noise reduction air duct (11) is inlaid and connected to the inspection cover (7) via a fixing opening (27); a vertical pressure-blocking plate (22) is provided at the lower end of the interior of the noise reduction air duct (11); and the vertical pressure-blocking plate (22) and the noise reduction air duct (11) are connected by welding.
4. The noise reduction air duct of a smoke purifier according to claim 1, characterized in that: A plurality of sound-absorbing holes are provided inside the guide plate (19), and the guide plate (19) is configured as a downwardly inclined structure.
5. The noise reduction air duct of a smoke purifier according to claim 1, characterized in that: The upper sound-absorbing cotton (18) is connected to the noise reduction air duct (11) by inlaying, the upper sound-absorbing cotton (18) is connected to the noise reduction cover (4) by gluing, and the cross-section of the upper sound-absorbing cotton (18) is set to a conical structure.
6. The noise reduction air duct of a smoke purifier according to claim 1, characterized in that: A sealing plate (23) is provided at the bottom of the noise reduction cover (4), and the sealing plate (23) is fixedly connected to the inspection cover (7) via large fixing bolts (6).