Noise reduction and elimination device for purification equipment

Abstract

The utility model discloses a noise reduction device for purification equipment, which comprises a noise reduction box, an air inlet pipe orifice is connected to the middle of one end of the noise reduction box, and a vortex air inducing barrel is arranged at the position, communicated with the air inlet pipe orifice, in the noise reduction box. The tail end, located on the rear side in the noise reduction box, of the vortex air inducing barrel is elastically connected with complex air dispersing frames which are arranged at equal intervals, air outlets are formed in the upper, lower, left, right and tail portions of the positions, connected with the complex air dispersing frames, of the noise reduction box, and the positions, connected with the noise reduction box, of the complex air dispersing frames are elastically and slidably connected to the inner side of the noise reduction box; according to the utility model, a section of longer vortex air inducing barrel is arranged in the noise reduction box and is used for draining high-pressure air exhausted by the purification equipment and reducing the impact of the high-pressure air on the pipe wall, so that the noise generated in the flowing process of the high-pressure air is avoided, and the noise pollution in the working process of the purification equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction and silencing of purification equipment, in particular to a noise reduction and silencing device for purification equipment. Background Art

[0002] Purification equipment refers to products that can absorb, decompose or transform various air pollution sources and air pollutants [indoor biological pollution. Mainly including bacteria, fungi, mold, viruses, dust mites, pollen, pet dander, organic components of organisms, etc.), effectively improve air cleanliness, mainly household and industrial purification equipment for removing indoor air pollution.

[0003] The working materials of the purification equipment after use are generally high-temperature gas and steam. These gases will be discharged through the exhaust pipe of the purification equipment after use. However, since the purification equipment needs to compress the gas, the discharged gas will be in a high-pressure state. The gas flow in this state will release pressure and impact the pipe wall, thereby causing a lot of noise, generating sonic booms and howling sounds, causing noise pollution. Therefore, it is urgent to design a noise reduction and silencer for purification equipment to solve the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a noise reduction and silencing device for purification equipment, which is provided with a noise reduction box. It can reduce the turbulence of high-pressure air through an internal long-distance vortex induced draft tube and at the same time use the vortex spiral blades to guide the high-pressure air impacting the pipe wall to form a spiral forward wind force, thereby avoiding the high-pressure air from making noise during the flow process. At the same time, the tail end of the noise reduction box is provided with a plurality of criss-crossing complex wind dispersion racks, which can discharge the vortex-shaped flowing air in four directions of up, down, left and right, thereby avoiding the concentrated discharge of air and the generation of wind whistling sound with the outlet wall, reducing noise pollution and the occurrence of noise during the exhaust of the purification equipment.

[0005] The utility model provides a noise reduction and silencing device for purification equipment:

[0006] It includes a noise reduction box, which is connected to an air inlet pipe opening in the middle of one end of the noise reduction box, a vortex induced air cylinder is provided at a position inside the noise reduction box that is connected to the air inlet pipe opening, the tail end of the vortex induced air cylinder is located at the rear side of the inside of the noise reduction box and is elastically connected to an equidistantly arranged complex air dispersion frame, air outlets are provided at the top, bottom, left, right and tail of the position where the noise reduction box is connected to the complex air dispersion frame, and the position where the complex air dispersion frame is connected to the noise reduction box is elastically slidably connected to the inside of the noise reduction box.

[0007] Preferably, a flange connecting plate is fixed to the top of one end of the air inlet pipe opening facing away from the noise reduction box, and a screw connecting hole is provided on the circumferential outer wall of the flange connecting plate. The setting of the flange connecting plate allows the air inlet pipe opening to be quickly and firmly connected to the air outlet of the purification equipment.

[0008] Preferably, the inner side of the air outlet is provided with deflecting air blades arranged at equal intervals. The middle part of the deflecting air blades is hinged to the middle part of the inner wall of the air outlet. The deflecting air blades arranged on the inner side of the air outlet can prevent external sundries from entering the inner side of the air outlet, protect the safety inside the equipment, and at the same time can control the air outlet direction by adjusting the angles of the deflecting air blades.

[0009] Preferably, the vortex air guide cylinder includes a spiral vane and a sound-absorbing cotton strip. The sound-absorbing cotton strip is in a spiral structure. The spiral vane is arranged inside the sound-absorbing cotton strip. The outer wall of the spiral vane abuts and fits against the inner wall of the noise reduction box. The two sides of the sound-absorbing cotton strip connecting the spiral vane are fixed on the outer surface of the spiral vane.

[0010] The vortex air guide cylinder adopts a spiral vane, which can make the high-pressure air flushing the pipe wall change the flow direction of the high-pressure air under the influence of the shape of the spiral vane during the process of flushing the pipe wall, so as to form a unified air duct flow direction, realize the rapid drainage of the high-pressure air, and carry out unified rapid flow, avoiding the collision between the high-pressure air and generating noise. The sound-absorbing cotton strip can prevent the direct contact between the air and the pipe wall during the flow of the high-pressure air. After being blocked by the sound-absorbing strip, the pressure of the high-pressure air will decrease, and then enter the inner side of the sound-absorbing cotton strip to contact the pipe wall, and then form a unified flow direction through the spiral vane and flow outwards. By reducing the pressure through the sound-absorbing cotton strip and absorbing the sound of the air impacting the pipe wall, the noise generated by the flow of the high-pressure air can be minimized.

[0011] Preferably, the middle part of the complex air diffuser is respectively connected with upper and lower air diffuser plates and left and right air diffuser plates. The positions where the upper and lower air diffuser plates and the left and right air diffuser plates are connected to the complex air diffuser are hinged to the outer wall of the complex air diffuser in the middle. A fixed block is fixed at the position where the complex air diffuser is connected to the noise reduction box. A damping spring perpendicular to the complex air diffuser is connected to the side of the fixed block. The damping spring is located inside the inner wall of the noise reduction box. The upper and lower air diffuser plates and the left and right air diffuser plates inside the complex air diffuser can make the air flowing through the vortex air guide cylinder be blocked by the upper and lower air diffuser plates or the left and right air diffuser plates, and part of the combed air is discharged towards the air outlet position, reducing the wind force at the air outlet position, avoiding the generation of wind howling, and reducing the noise during exhaust. Multiple complex air diffusers can make the rapidly flowing air gradually diffuse at multiple positions of the air outlet to complete the discharge of the air. The fixed block and the damping spring at the end of the complex air diffuser can use the damping spring to slide inside the noise reduction box when the complex air diffuser is blown by strong wind, and use the elastic force of the spring to block the impact force of the high-pressure air and reduce the pressure of the air flow.

[0012] Preferably, damping shock-absorbing grooves are provided at the positions where the noise reduction box is connected to the damping springs. The damping springs and the fixing blocks are fitted inside the damping shock-absorbing grooves. One end of the damping spring away from the fixing block is fixed to the inner wall of the damping shock-absorbing groove, and the fixing block slides on the inner wall of the damping shock-absorbing groove. The opening of the damping shock-absorbing groove allows the end of the complex-shaped air-diffusing frame to be embedded inside, improving the stability of the complex-shaped air-diffusing frame during movement, preventing the complex-shaped air-diffusing frame from separating from the noise reduction box due to being blown by high-pressure air, and extending the service life of the complex-shaped air-diffusing frame.

[0013] Compared with the related art, a noise reduction and silencing device for a purification device provided by the present utility model has the following beneficial effects:

[0014] 1. A relatively long vortex air guide tube is provided inside the noise reduction box of the present utility model to divert the high-pressure air discharged from the purification device and reduce the impact of the high-pressure air on the tube wall, thereby preventing noise generated during the flow of the high-pressure air and reducing the noise pollution during the operation of the purification device.

[0015] 2. The tail end of the noise reduction box adopts a plurality of complex-shaped air-diffusing frames arranged at equal intervals, which can discharge the air flowing in a vortex shape in multiple directions, including up, down, left, right, and the tail of the noise reduction box, preventing the high-pressure air from forming a whistling sound with the tube wall of the air outlet, thereby reducing the noise during exhaust and minimizing the occurrence of noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a preferred embodiment of a noise reduction and silencing device for a purification device provided by the present utility model;

[0017] Figure 2 is Figure 1 a schematic cross-sectional view of the structure in the middle of the noise reduction box shown;

[0018] Figure 3 is Figure 2 a schematic enlarged cross-sectional view of the structure at the position of the vortex air guide tube shown;

[0019] Figure 4 is Figure 2 a schematic enlarged cross-sectional view of the structure at the position of the complex-shaped air-diffusing frame shown.

[0020] Reference numerals in the figures: 1. Noise reduction box; 11. Damping shock-absorbing groove; 2. Air inlet pipe; 21. Flange connection plate; 3. Air outlet; 31. Direction-adjusting air blade; 4. Vortex air guide tube; 41. Vortex spiral blade; 42. Sound-absorbing cotton strip; 5. Complex-shaped air-diffusing frame; 51. Upper and lower air-diffusing blades; 52. Left and right air-diffusing blades; 53. Fixing block; 54. Damping spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] The following describes the specific implementation of the present utility model in detail with reference to specific embodiments.

[0023] Please refer to the attached Figures 1-4 , a noise reduction and silencing device for a purification device provided by an embodiment of the present utility model, the noise reduction and silencing device for a purification device includes:

[0024] A noise reduction box 1, one end of the noise reduction box 1 is communicated with an air inlet pipe port 2, the air inlet pipe port 2 can be connected to the air outlet of the purification device to receive the high-pressure air discharged by the purification device, and a flange connection disk 21 is connected to the end of the air inlet pipe port 2, and the flange connection disk 21 can quickly complete a high-strength sealing connection with the air outlet of the purification device.

[0025] At the position where the air inlet pipe port 2 is connected inside the noise reduction box 1, a vortex air guiding cylinder 4 is provided. The vortex air guiding cylinder 4 can divert the flow direction of the high-pressure air entering the inside of the noise reduction box 1, and reduce the resistance of the impact force of the high-pressure air by using its own structure, avoiding the impact of the high-pressure air on the pipe wall, thereby avoiding the generation of noise.

[0026] The vortex air guiding cylinder 4 includes a vortex spiral sheet 41. The vortex spiral sheet 41 can divert the high-pressure air flowing at high speed, making the high-pressure air form a unified flow direction, thereby avoiding the generation of sonic booms due to the impact between the high-pressure airs. At the same time, a sound absorption cotton strip 42 is provided between the vortex spiral sheets 41. The sound absorption cotton strip 42 can reduce the impact force of the high-pressure air on the inner wall of the noise reduction box 1 when entering the inside of the noise reduction box 1, and can also absorb the noise caused by the impact of the decelerated air on the pipe wall.

[0027] Air outlet openings 3 are provided on the upper, lower, left, right and rear sides of the tail end of the noise reduction box 1. The air outlet openings 3 can discharge the internal air. Inside the air outlet openings 3, equally spaced adjustable air guide vanes 31 are hinged. The adjustable air guide vanes 31 can block external sundries from entering the device to protect the safety of the device, and can also change the air flow direction of the air outlet openings 3 to facilitate the adjustment of the air flow direction.

[0028] Inside the noise reduction box 1, a complex air dispersion frame 5 arranged at equal intervals is elastically connected inside the air outlet 3. The end of the complex air dispersion frame 5 is connected with a fixing block 53. The fixing block 53 is embedded inside the noise reduction box 1 and is slidably connected to the inside of the noise reduction box 1. The complex air dispersion frame 5 can comb the high-pressure air after drainage inside the vortex air guiding cylinder 4, gradually reduce the flow rate of the high-pressure air and guide the air flow volume, so that the air can flow out towards the air outlet 3 in batches, avoiding excessive air flow and generating a whistling sound at the air outlet 3 position, and avoiding the generation of noise.

[0029] On the inner side of the complex air dispersion frame, upper and lower air dispersion fins 51 and left and right air dispersion fins 52 arranged at equal intervals are respectively connected. The settings of the upper and lower air dispersion fins 51 and the left and right air dispersion fins 52 can send the drained air out in the up, down, left and right directions respectively, realizing drainage at multiple positions, thereby further preventing the generation of a whistling sound at the air outlet 3 position.

[0030] The side of the fixing block 53 is connected with a damping spring 54 perpendicular to the complex air dispersion frame 5. The damping spring 54 can perform spring damping unloading on the impact force of the wind when the complex air dispersion frame 5 is blown by high-pressure wind, thereby improving the service strength of the complex air dispersion frame 5 itself and increasing its service life.

[0031] A damping shock-absorbing groove 11 is opened at the position where the noise reduction box 1 is connected to the fixing block 53. The opening of the damping shock-absorbing groove 11 allows the damping spring 54 and the fixing block 53 to slide inside, preventing the fixing block 53 and the damping spring 54 from being separated from the noise reduction box 1 due to a large impact force.

[0032] Usage process:

[0033] Connect the air inlet pipe 2 to the air outlet 3 of the purification equipment through the flange connection plate 21. Then, the high-pressure air sent out inside the purification equipment will be drained and have its resistance reduced, flow inside the noise reduction box 1, and finally be sent out from the air outlet 3 position.

[0034] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated here too much.

[0035] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A noise reduction and silencing device for purification equipment, characterized in that: The invention comprises a noise reduction box (1), wherein the middle part of one end of the noise reduction box (1) is connected to an air inlet pipe opening (2), a vortex induced air duct (4) is provided at a position connected to the air inlet pipe opening (2) inside the noise reduction box (1), the tail end of the vortex induced air duct (4) is located at the rear side of the inside of the noise reduction box (1) and is elastically connected to a complex air dispersion frame (5) arranged at equal intervals, air outlets (3) are provided at the top, bottom, left, right and tail of the position where the noise reduction box (1) is connected to the complex air dispersion frame (5), and the position where the complex air dispersion frame (5) is connected to the noise reduction box (1) is elastically slidably connected to the inside of the noise reduction box (1).

2. A noise reduction and silencing device for purification equipment according to claim 1, characterized in that: A flange connection plate (21) is fixed to the top of one end of the air inlet pipe opening (2) away from the noise reduction box (1), and a screw connection hole is provided on the circumferential outer wall of the flange connection plate (21).

3. A noise reduction and silencing device for purification equipment according to claim 1, characterized in that: The inner side of the air outlet (3) is provided with equidistantly arranged direction-adjusting blades (31), and the middle part of the direction-adjusting blades (31) is hinged to the middle part of the inner wall of the air outlet (3).

4. A noise reduction and silencing device for purification equipment according to claim 1, characterized in that: The vortex induced draft cylinder (4) comprises a vortex spiral blade (41) and a sound-absorbing cotton strip (42); the sound-absorbing cotton strip (42) is of a spiral structure; the vortex spiral blade (41) is inserted into the inner side of the sound-absorbing cotton strip (42); the outer wall of the vortex spiral blade (41) abuts against the inner wall of the noise reduction box (1); and the sound-absorbing cotton strip (42) is connected to the two sides of the vortex spiral blade (41) and is fixed to the outer surface of the vortex spiral blade (41).

5. The noise reduction and silencing device for purification equipment according to claim 1, characterized in that: The middle of the complex wind dispersion frame (5) is respectively connected to upper and lower wind dispersion pieces (51) and left and right wind dispersion pieces (52); the middle of the position where the upper and lower wind dispersion pieces (51) and left and right wind dispersion pieces (52) are connected to the complex wind dispersion frame (5) is hinged to the outer wall of the complex wind dispersion frame (5); a fixing block (53) is fixed at the position where the complex wind dispersion frame (5) is connected to the noise reduction box (1); a damping spring (54) vertically fixed to the complex wind dispersion frame (5) is connected to the side of the fixing block (53); and the damping spring (54) is located on the inner side of the inner wall of the noise reduction box (1).

6. A noise reduction and silencing device for purification equipment according to claim 5, characterized in that: A damping and shock absorbing groove (11) is provided at the position where the noise reduction box (1) is connected to the damping spring (54); the damping spring (54) and the fixing block (53) are embedded in the inner side of the damping and shock absorbing groove (11); one end of the damping spring (54) away from the fixing block (53) is fixed to the inner wall of the damping and shock absorbing groove (11); and the fixing block (53) slides on the inner wall of the damping and shock absorbing groove (11).

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