A low noise deodorization and purification equipment

Abstract

The present application relates to the field of sewage treatment, and specifically discloses a low-noise deodorization and purification device. The low-noise deodorization and purification device comprises a box body, one side of the box body is connected to an air inlet, and the other side is connected to an air outlet, and a slow flow device, a filtering device, a plasma treatment device and a photocatalyst purification device are sequentially arranged inside the box body along the direction from the air inlet to the air outlet; the slow flow device comprises an upper slow flow plate and a lower slow flow plate, and the lower end of the upper slow flow plate is located on the side of the upper end of the lower slow flow plate close to the air inlet, and a vibration damping strip is fixedly connected between the upper slow flow plate and the box body, and between the lower slow flow plate and the box body, and a sound-absorbing pad is connected to the side of the upper slow flow plate and the lower slow flow plate away from the air inlet. The purification equipment of the present application can purify the waste gas generated by sewage, meet the emission standards, and the noise during the operation of the equipment is low, and will not affect the surrounding environment.

Description

Technical Field

[0001] The present application relates to the field of sewage treatment, and in particular to a low-noise deodorization and purification device. Background Art

[0002] Waste gas is generated during sewage treatment, mainly from sedimentation tanks, biochemical tanks, sludge treatment devices, etc. The main odor-causing components of waste gas include methyl mercaptan, trimethylamine, hydrogen sulfide, aldehydes and ketones, etc. In order to meet the emission standards, purification equipment is needed to degrade the waste gas and reduce the VOCs content. There are mainly the following methods for waste gas purification: activated carbon adsorption, combustion, plasma, photocatalysis, etc.

[0003] A Chinese patent with announcement number CN208465569U discloses a volatile organic waste gas treatment device, which includes a treatment box, an air inlet is provided on one side of the treatment box, and an air outlet is provided on the other side. A drawer rack is provided in the treatment box, and a plurality of fixed racks are detachably provided in the drawer rack in sequence along the direction from the air inlet to the air outlet. A plurality of fixed racks are fixedly connected in sequence along the direction from the air inlet to the air outlet with an aluminum mesh coated with a photocatalyst, an ultraviolet lamp tube, a low-temperature plasma tube and an activated carbon filter.

[0004] The above-mentioned exhaust gas treatment device combines multiple exhaust gas purification methods and has the advantages of wide application range and high purification efficiency. However, when it is in operation, the airflow passes through the activated carbon filter, aluminum mesh and other processing components, which is easy to generate noise and affect the environment. Summary of the invention

[0005] In order to reduce the noise during the operation of the equipment, the present application provides a low-noise deodorization and purification equipment.

[0006] The low-noise deodorization and purification equipment provided in this application adopts the following technical solution:

[0007] A low-noise deodorizing and purifying device comprises a box body, one side of the box body is connected to an air inlet, and the other side is connected to an air outlet, and a slow flow device, a filtering device, a plasma treatment device and a photocatalyst purification device are sequentially arranged inside the box body along the direction from the air inlet to the air outlet;

[0008] The slow flow device includes an upper slow flow plate and a lower slow flow plate, the upper slow flow plate is inclined from top to bottom in a direction away from the air inlet, and the lower slow flow plate is inclined from bottom to top in a direction away from the air inlet, the lower end of the upper slow flow plate is located on the side of the upper end of the lower slow flow plate close to the air inlet, vibration damping strips are fixedly connected between the upper slow flow plate and the box body, and between the lower slow flow plate and the box body, and sound absorbing pads are connected to the upper and lower slow flow plates on the sides away from the air inlet.

[0009] By adopting the above technical solution, the exhaust gas enters from the air inlet and passes through the slow flow device, the filter device, the plasma treatment device and the photocatalyst purification device in sequence, and then flows out from the air outlet. The slow flow device can slow down the flow rate of the exhaust gas, which is beneficial to reduce wind noise and improve the subsequent purification effect; the filter device can filter the particulate matter in the exhaust gas; the plasma treatment device can release high-energy electrons, which collide inelastically with gas molecules, so that the pollutant molecules are decomposed into small molecules, which plays a degradation role; the photocatalyst of the photocatalyst purification device can effectively degrade the pollutant molecules in the air and kill a variety of bacteria under the action of ultraviolet light, further improving the exhaust gas purification effect.

[0010] Optionally, a dust collecting felt is connected to one side of the upper deceleration plate close to the air inlet.

[0011] By adopting the above technical solution, when the exhaust gas flows through the upper slow flow plate, part of the dust is attached to the surface of the dust collecting felt through electrostatic adsorption, which has the effect of pre-dust removal.

[0012] Optionally, the lower flow plate is made of metal, and a cold water cavity is arranged inside the lower flow plate. A water inlet pipe and a water outlet pipe are connected to the side of the lower flow plate away from the air inlet, and the water inlet pipe and the water outlet pipe are both connected to the cold water cavity. The water inlet pipe and the water outlet pipe pass through the bottom wall of the box.

[0013] By adopting the above technical solution, the lower slow flow plate can take away part of the heat of the exhaust gas through water cooling, which plays a cooling role, so that the high-temperature exhaust gas is not easy to affect the service life of subsequent devices.

[0014] Optionally, the cold water chamber includes a first vortex chamber and a second vortex chamber, the inner ends of the first vortex chamber and the second vortex chamber are connected, the outer end of the first vortex chamber is connected to the water inlet pipe, and the outer end of the second vortex chamber is connected to the water outlet pipe.

[0015] By adopting the above technical solution, the temperature at each location of the lower slow flow plate is uniform and the cooling effect is good.

[0016] Optionally, a bracket is connected to the bottom of the box, a through hole is penetrated through the bottom wall of the box and is opposite to the upper slow flow plate, a dust box located at the through hole is slidably connected to the bottom of the box, and the dust box is connected to a handle.

[0017] By adopting the above technical scheme, firstly, in addition to the slow flow function of the upper slow flow plate and the lower slow flow plate, dust removal is performed at the upper slow flow plate and temperature is reduced at the lower slow flow plate, so that the high-dust and high-temperature exhaust gas is not easy to cause damage to the plasma treatment device and the photocatalyst purification device, thereby extending the service life of the equipment; secondly, since the hot air pre-cooling will condense water droplets, the water droplets condensed at the lower slow flow plate will not fall on the dust collection felt, avoiding affecting the electrostatic adsorption effect of the dust collection felt; thirdly, the dust that falls from the dust collection felt and enters the dust collection box is mixed with the water droplets that flow into the dust collection box from the lower slow flow plate, so that the dust impurities in the dust collection box are compacted and not easily blown up by the subsequent exhaust gas, which is beneficial to improving the dust removal effect.

[0018] Optionally, a Velcro is connected to one side edge of the dust-absorbing felt close to the upper slow-flow plate, and the upper slow-flow plate is connected to a Velcro mother tape that cooperates with the Velcro.

[0019] By adopting the above technical solution, the dust collecting felt is fixed by means of Velcro, which is convenient for disassembly and assembly, and is convenient for cleaning the dust collecting felt during equipment maintenance.

[0020] Optionally, the air outlet is connected to an air outlet pipe, a sound-absorbing filler is arranged in the air outlet pipe, and a plurality of air holes are arranged through the sound-absorbing filler.

[0021] By adopting the above technical solution, the sound-absorbing filler can achieve a noise reduction effect and reduce the noise at the air outlet.

[0022] Optionally, the filtering device comprises a plurality of activated carbon filter screens, and the pore sizes of the plurality of activated carbon filter screens gradually decrease along the direction from the air inlet to the air outlet.

[0023] By adopting the above technical solution, on the one hand, multiple activated carbon filters can further buffer the exhaust gas, and on the other hand, it is beneficial to improve the filtering effect of the exhaust gas.

[0024] Optionally, the plasma processing device comprises a fixing frame, to which a low-temperature plasma tube is fixedly connected;

[0025] The photocatalyst purification device comprises a photocatalyst net and a lamp holder. The lamp holder is located on a side of the photocatalyst net close to an air outlet, and an ultraviolet lamp tube is connected to the lamp holder.

[0026] Optionally, a door is connected to the side of the box body.

[0027] By adopting the above technical solution, it is convenient to open the box and perform inspection and maintenance on the inside.

[0028] In summary, this application has the following beneficial effects:

[0029] By setting up a slow flow device, the flow rate of the exhaust gas can be slowed down, which is beneficial to reduce wind noise and improve the subsequent purification effect. In addition, it can also remove dust and cool down, so that high-dust and high-temperature exhaust gas is not easy to cause damage to the plasma treatment device and photocatalyst purification device, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a low-noise deodorization and purification device according to an embodiment of the present application;

[0031] Figure 2 is a schematic diagram of the structure of the air outlet pipe and the sound-absorbing filler in an embodiment of the present application;

[0032] Figure 3 It is a schematic diagram of the structure of the slow flow device, the filtering device, the plasma treatment device and the photocatalyst purification device of the embodiment of the present application;

[0033] Figure 4 It is an exploded schematic diagram of an upper slow flow plate, a vibration reduction strip, a sound absorbing pad and a dust absorbing felt according to an embodiment of the present application;

[0034] Figure 5 It is a schematic diagram of the structure of the vacuum felt of an embodiment of the present application;

[0035] Figure 6 is a cross-sectional schematic diagram of a low-noise deodorization and purification device according to an embodiment of the present application;

[0036] Figure 7 is a cross-sectional schematic diagram of a lower slow flow plate of an embodiment of the present application;

[0037] Figure 8 It is a schematic diagram of the structure of a plasma treatment device and a photocatalyst purification device according to an embodiment of the present application.

[0038] Explanation of the reference numerals: 1. Box body; 11. Air inlet; 12. Air outlet; 13. Through hole; 14. Box door; 2. Slow-flow device; 21. Upper slow-flow plate; 211. Magic mother tape; 22. Lower slow-flow plate; 221. Cold water chamber; 2211. First vortex chamber; 2212. Second vortex chamber; 222. Water inlet pipe; 223. Water outlet pipe; 23. Vibration-damping strip; 24. Sound-absorbing pad; 25. Dust-absorbing felt; 251. Magic mother tape; 3. Filter device; 31. Activated carbon filter; 4. Plasma treatment device; 41. Fixing frame; 42. Low-temperature plasma tube; 5. Photocatalyst purification device; 51. Photocatalyst net; 52. Lamp holder; 53. Ultraviolet lamp tube; 6. Bracket; 7. Dust box; 71. Handle; 8. Air outlet pipe; 9. Sound-absorbing filler; 91. Vent. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-8 This application is described in further detail.

[0040] The embodiment of the present application discloses a low-noise deodorization and purification device.

[0041] Reference Figure 1 The low-noise deodorization and purification device comprises a box body 1, one side of the box body 1 is fixedly connected with an air inlet 11, and the other side is fixedly connected with an air outlet 12, so that the exhaust gas enters from the air inlet 11 and is discharged from the air outlet 12. The bottom of the box body 1 is fixedly connected with a bracket 6, and the bracket 6 is placed on the ground, so that there is a gap between the bottom wall of the box body 1 and the ground. The side of the box body 1 is hinged with a box door 14, and the inside can be inspected and maintained by opening the box door 14.

[0042] Reference Figure 1 , Figure 2 The air outlet 12 is fixedly connected to the air outlet pipe 8, and the air outlet pipe 8 is filled with a sound-absorbing filler 9, which is made of foam glass. The sound-absorbing filler 9 is cylindrical and fits the inner wall of the air outlet pipe 8. The sound-absorbing filler 9 is provided with a plurality of vents 91 for the purified exhaust gas to pass through along its axial direction. The sound-absorbing filler 9 can play a noise reduction effect and reduce the noise at the air outlet 12. A convex ring abutting against the end face of the sound-absorbing filler 9 is fixedly connected to the inner side of the air outlet pipe 8, which is used to limit the position of the sound-absorbing filler 9.

[0043] Reference Figure 1 , Figure 3 A slow flow device 2, a filtering device 3, a plasma treatment device 4 and a photocatalyst purification device 5 are sequentially arranged inside the box body 1 along the direction from the air inlet 11 to the air outlet 12. The slow flow device 2 is used to reduce the flow rate of the exhaust gas and play a noise reduction role. The filtering device 3 is used to filter the particulate matter in the exhaust gas. The plasma treatment device and the photocatalyst purification device 5 are used to purify the exhaust gas so that the VOCs content of the exhaust gas is reduced to meet the emission standards.

[0044] Reference Figure 3 In the embodiment of the present application, two slow flow devices 2 are provided at intervals along the direction from the air inlet 11 to the air outlet 12. In other embodiments, the number of slow flow devices 2 can also be set to one, three or more according to different exhaust gas flow rates.

[0045] Reference Figure 3 , Figure 4 The slow flow device 2 includes an upper slow flow plate 21 and a lower slow flow plate 22. The upper slow flow plate 21 is located on the upper side of the lower slow flow plate 22. The upper slow flow plate 21 is tilted from top to bottom in a direction away from the air inlet 11. The lower slow flow plate 22 is tilted from bottom to top in a direction away from the air inlet 11. The lower end of the upper slow flow plate 21 is located on the side of the upper end of the lower slow flow plate 22 close to the air inlet 11. The upper slow flow plate 21 and the lower slow flow plate 22 face the air inlet 11. The exhaust gas flowing into the air inlet 11 is blocked by the upper slow flow plate 21 and the lower slow flow plate 22, so that the flow rate of the exhaust gas is reduced.

[0046] Reference Figure 3 , Figure 4 A vibration-damping strip 23 is fixedly connected between the upper end and both sides of the upper slow flow plate 21 and the inner wall of the box body 1, and a vibration-damping strip 23 is fixedly connected between the lower end and both sides of the lower slow flow plate 22 and the inner wall of the box body 1. The vibration-damping strip 23 is U-shaped and made of rubber, so the vibration-damping strip 23 can play a vibration-damping role, so that the vibration of the upper slow flow plate 21 and the lower slow flow plate 22 is not easily transmitted to the box body 1, which is beneficial to reduce the noise generated by vibration.

[0047] Reference Figure 3 , Figure 4 The upper slow flow plate 21 and the lower slow flow plate 22 are fixedly connected to the side away from the air inlet 11 with a sound absorbing pad 24, and the sound absorbing pad 24 is made of polyurethane sponge material, which can absorb the noise generated by the slow flow device 2 and reduce the noise generation.

[0048] Reference Figure 3 , Figure 4 A dust-absorbing felt 25 is connected to one side of the upper slow flow plate 21 near the air inlet 11. The dust-absorbing felt 25 is made of wool felt and has an electrostatic adsorption effect on dust. When the exhaust gas flows through the upper slow flow plate 21, part of the dust adheres to the surface of the dust-absorbing felt 25, which plays a pre-dust removal effect and reduces the replacement frequency of the filter device 3. In addition, the dust-absorbing felt 25 is arranged obliquely downward. When there is a lot of adsorbed dust, it will fall on the bottom wall of the box body 1 due to gravity, which plays a self-cleaning role.

[0049] Reference Figure 4 , Figure 5 The edge of one side of the dust absorption felt 25 close to the upper slow flow plate 21 is fixedly connected with a magic tape 251, and the magic tape 251 is annular. The upper slow flow plate 21 is fixedly connected with a magic tape 211 that cooperates with the magic tape 251, which is convenient for removing the dust absorption felt 25 for cleaning and replacing a new dust absorption felt 25.

[0050] Reference Figure 6 , Figure 7 In the embodiment of the present application, the lower slow flow plate 22 is made of aluminum alloy and has good thermal conductivity. In other embodiments, the lower slow flow plate 22 can also be made of metal materials such as copper and iron. A cold water chamber 221 is arranged inside the lower slow flow plate 22. The cold water chamber 221 includes a first volute chamber 2211 and a second volute chamber 2212. The inner ends of the first volute chamber 2211 and the second volute chamber 2212 are connected. A water inlet pipe 222 and a water outlet pipe 223 are fixedly connected to the side of the lower slow flow plate 22 away from the air inlet 11. The outer end of the first volute chamber 2211 is connected to the water inlet pipe 222, and the outer end of the second volute chamber 2212 is connected to the water outlet pipe 223. The water inlet pipe 222 and the water outlet pipe 223 run through the bottom wall of the box body 1.

[0051] After water is introduced into the water inlet pipe 222, the water flows along the first vortex cavity 2211 and the second vortex cavity 2212, and is then discharged from the water outlet pipe 223, thereby realizing continuous flow of water, thereby reducing the surface heat of the lower slow flow plate 22, so that the temperature of the exhaust gas flowing through the lower slow flow plate 22 is relatively reduced, thereby playing a cooling role, thereby preventing high-temperature exhaust gas from affecting the service life of the plasma treatment device 4 and the photocatalyst purification device 5.

[0052] Reference Figure 6 , Figure 7 The bottom wall of the box body 1 is penetrated with a through hole 13 facing the upper slow flow plate 21. The through hole 13 is located on the side of the lower slow flow plate 22 close to the air inlet 11 and facing the upper slow flow plate 21. The bottom of the box body 1 is slidably connected with a dust box 7, which can slide to face the through hole 13, so that the dust falling from the dust-absorbing felt 25 and the condensed water droplets flowing from the lower slow flow plate 22 can pass through the through hole 13 and enter the dust box 7. After the water droplets and dust are mixed, the dust can be agglomerated into blocks, which are not easily blown up by the subsequent exhaust gas, which is conducive to improving the dust removal effect.

[0053] Reference Figure 3 A handle 71 is fixedly connected to the side wall of the dust box 7. When a lot of dust is collected in the dust box 7, after the equipment stops running, the handle 71 can be pulled out to pull out the dust box 7 so as to dump the dust inside the dust box 7.

[0054] Reference Figure 3 The filter device 3 includes a plurality of activated carbon filters 31 arranged at intervals along the direction from the air inlet 11 to the air outlet 12. The activated carbon filters 31 are fixedly connected to the housing 1, and the apertures of the plurality of activated carbon filters 31 gradually decrease along the direction from the air inlet 11 to the air outlet 12. On the one hand, the plurality of activated carbon filters 31 can further buffer the exhaust gas, and on the other hand, it is conducive to improving the filtering effect of the exhaust gas.

[0055] Reference Figure 8 The plasma treatment device 4 includes a frame-shaped fixing frame 41, which is fixedly connected to the box body 1. A plurality of spaced low-temperature plasma tubes 42 are fixedly connected to the inner side of the fixing frame 41. The low-temperature plasma tubes 42 can release high-energy electrons to bombard pollutant molecules, so that the exhaust gas can be purified.

[0056] Reference Figure 8 The photocatalyst purification device 5 includes a photocatalyst net 51 and a lamp holder 52, and the photocatalyst net 51 and the lamp holder 52 are both fixedly connected to the box body 1. The lamp holder 52 is located on the side of the photocatalyst net 51 close to the air outlet 12, and a plurality of ultraviolet lamp tubes 53 arranged at intervals are fixedly connected to the inner side of the lamp holder 52. The photocatalyst net 51 is an aluminum net coated with a photocatalyst. Under the irradiation of the ultraviolet lamp tube 53, the photocatalyst produces a photocatalytic effect, which can decompose organic pollutants into non-polluting substances, and further purify the exhaust gas.

[0057] The implementation principle of a low-noise deodorization and purification device in the embodiment of the present application is:

[0058] After the exhaust gas enters from the air inlet 11, it first passes through the upper slow flow plate 21 and the lower slow flow plate 22, so that the flow rate of the exhaust gas is reduced, and some particulate dust in the exhaust gas adheres to the surface of the dust collecting felt 25, and part of the heat of the exhaust gas is absorbed by the lower slow flow plate 22; the exhaust gas that has been cooled, dust-removed, slowed down and noise-reduced passes through multiple activated carbon filters 31, so that the particulate impurities are adsorbed and filtered, and the flow rate of the exhaust gas is further reduced; then, the exhaust gas passes through the plasma treatment device 4 and the photocatalyst purification device 5, the pollutants and odorous substances in the exhaust gas are degraded, and the VOCs content is reduced, and finally the exhaust gas is discharged from the exhaust pipe 8, and the sound-absorbing filler 9 absorbs the noise discharged by it.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A low-noise deodorizing and purifying device, comprising a housing (1), wherein one side of the housing (1) is connected to an air inlet (11) and the other side is connected to an air outlet (12), characterized in that: The box body (1) is provided with a slow flow device (2), a filtering device (3), a plasma treatment device (4) and a photocatalyst purification device (5) in sequence along the direction from the air inlet (11) to the air outlet (12); The slow flow device (2) comprises an upper slow flow plate (21) and a lower slow flow plate (22); the upper slow flow plate (21) is arranged to be inclined from top to bottom in a direction away from the air inlet (11); the lower slow flow plate (22) is arranged to be inclined from bottom to top in a direction away from the air inlet (11); the lower end of the upper slow flow plate (21) is located on a side of the upper end of the lower slow flow plate (22) close to the air inlet (11); a vibration damping strip (23) is fixedly connected between the upper slow flow plate (21) and the box body (1) and between the lower slow flow plate (22) and the box body (1); and a sound absorbing pad (24) is connected to the side of the upper slow flow plate (21) and the lower slow flow plate (22) away from the air inlet (11); A dust collecting felt (25) is connected to a side of the upper slow flow plate (21) close to the air inlet (11); The lower slow flow plate (22) is made of metal, a cold water cavity (221) is arranged inside the lower slow flow plate (22), a water inlet pipe (222) and a water outlet pipe (223) are connected to the side of the lower slow flow plate (22) away from the air inlet (11), the water inlet pipe (222) and the water outlet pipe (223) are both in communication with the cold water cavity (221), and the water inlet pipe (222) and the water outlet pipe (223) penetrate the bottom wall of the box body (1); The bottom wall of the box body (1) is penetrated by a through hole (13) facing the upper slow flow plate (21), and the bottom of the box body (1) is slidably connected to a dust collecting box (7) located at the through hole (13).

2. The low-noise deodorization and purification equipment according to claim 1 is characterized in that: The cold water chamber (221) comprises a first vortex chamber (2211) and a second vortex chamber (2212); the inner ends of the first vortex chamber (2211) and the second vortex chamber (2212) are connected; the outer end of the first vortex chamber (2211) is connected to a water inlet pipe (222); and the outer end of the second vortex chamber (2212) is connected to a water outlet pipe (223).

3. The low-noise deodorization and purification equipment according to claim 1 is characterized in that: The bottom of the box body (1) is connected to a bracket (6), and the dust collecting box (7) is connected to a handle (71).

4. The low-noise deodorization and purification equipment according to claim 1 is characterized in that: A Velcro tape (251) is connected to one side edge of the dust suction felt (25) close to the upper slow flow plate (21), and the upper slow flow plate (21) is connected to a Velcro tape (211) that cooperates with the Velcro tape (251).

5. The low-noise deodorization and purification equipment according to claim 1 is characterized in that: The air outlet (12) is connected to an air outlet pipe (8), a sound-absorbing filler (9) is arranged inside the air outlet pipe (8), and a plurality of air holes (91) are arranged through the sound-absorbing filler (9).

6. The low-noise deodorization and purification equipment according to claim 1 is characterized in that: The filtering device (3) comprises a plurality of activated carbon filter screens (31), and the apertures of the plurality of activated carbon filter screens (31) gradually decrease in the direction from the air inlet (11) to the air outlet (12).

7. The low-noise deodorization and purification equipment according to claim 1 is characterized in that: The plasma processing device (4) comprises a fixing frame (41), and a low-temperature plasma tube (42) is fixedly connected to the fixing frame (41); The photocatalyst purification device (5) comprises a photocatalyst net (51) and a lamp holder (52); the lamp holder (52) is located on a side of the photocatalyst net (51) close to the air outlet (12); and the lamp holder (52) is connected to an ultraviolet lamp tube (53).

8. The low-noise deodorization and purification equipment according to claim 1 is characterized in that: A box door (14) is connected to the side of the box body (1).

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