Air purification device with noise reduction function for processing room

Abstract

The utility model discloses an air purification device with a noise reduction function for a processing chamber, and relates to the field of air purification devices, the air purification device comprises a fan, a pre-filtering assembly, a small hole silencer, a filter plate and a noise reduction ventilation pipeline, the fan is installed on the inner wall body of the processing chamber, the inner wall of the processing chamber is connected with the pre-filtering assembly, the small hole silencer and the filter plate, and the noise reduction ventilation pipeline is connected with the pre-filtering assembly. The pre-filtering assembly, the small-hole silencer and the filter plate are located at the air inlet position of the draught fan, a silencing ventilation pipeline is connected to the wall body of the machining chamber, and air in the machining chamber sequentially passes through the pre-filtering assembly, the small-hole silencer and the filter plate and then comes out of the silencing ventilation pipeline. The air purifier is reasonable in layout, compact in structure and capable of purifying air in a processing chamber and reducing noise.

Description

Technical Field

[0001] The utility model relates to the field of air purification devices, in particular to an air purification device with a noise reduction function for a processing room. Background Art

[0002] In the processing of plastics or rubber, whether it is open mixing, internal mixing or extrusion, dust and toxic, harmful and smelly gases will inevitably be generated. In order to maintain good air in the processing room, protect the physical and mental health of the staff, and create a comfortable and safe working environment, the processing room will be equipped with a ventilation system. The ventilation system discharges dust and harmful gases from the processing room through pipes, and then connects an exhaust gas treatment device to the outside of the processing room for treatment to achieve the purpose of purifying the air. When this system is running, the noise caused by the different qualities of the fan or the wind noise generated when the fan is working is also harmful to the health of the staff. At the same time, the external exhaust gas treatment device is large in size and occupies a large area.

[0003] Therefore, those skilled in the art urgently need to provide an air purification device with noise reduction function for a processing room, which can purify the air in the processing room while reducing noise. Utility Model Content

[0004] The utility model aims to provide an air purification device with noise reduction function for a processing room, which can purify the air in the processing room and reduce the noise.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model discloses an air purification device with noise reduction function for a processing room, comprising a fan, a pre-filtering component, a small hole muffler, a filter plate and a sound-absorbing ventilation duct, wherein the fan is installed on the inner wall of the processing room, the pre-filtering component, the small hole muffler and the filter plate are connected to the inner wall of the processing room, the pre-filtering component, the small hole muffler and the filter plate are located at the air inlet position of the fan, the wall of the processing room is connected to the sound-absorbing ventilation duct, and the air in the processing room passes through the pre-filtering component, the small hole muffler and the filter plate in sequence and is discharged from the sound-absorbing ventilation duct.

[0007] Preferably, the pre-filter assembly includes a shell having a receiving groove, a sponge is arranged in the receiving groove, an air vent is arranged on the wall of the shell in contact with the bottom of the sponge, and a limiting block is arranged on the shell, and the limiting block limits the sponge in the receiving groove.

[0008] Preferably, the filter plate includes a pre-filter, a HEPA high-efficiency particulate filter and a coconut shell activated carbon filter, and the pre-filter, the HEPA high-efficiency particulate filter and the coconut shell activated carbon filter are sequentially connected to the wall of the processing chamber, and the pre-filter is located close to the side of the small-hole muffler.

[0009] Preferably, the inner wall of the sound-absorbing ventilation duct is connected with sound-absorbing spikes, the sound-absorbing spikes are alternately arranged on the inner wall of the sound-absorbing ventilation duct, and the surface of the sound-absorbing spikes is provided with a plurality of irregular grooves, or the inner wall of the sound-absorbing ventilation duct is connected with a sound-absorbing panel, and the sound-absorbing panel is composed of a combination of sound insulation felt, polyester fiber sound-absorbing panel and wave peak sound-absorbing sponge.

[0010] Compared with the prior art, the beneficial technical effects of the utility model are:

[0011] (1) The utility model is an air purification device with noise reduction function for a processing room, which can effectively purify the air in the processing room, while ensuring that the exhausted air is clean and does not pollute the environment. It can effectively reduce the noise when the ventilation system of the processing room is running, and effectively protect the health of the workers;

[0012] (2) The sponge in the pre-filter assembly of the utility model can pre-filter the dust in the processing room, reduce the filtering pressure of the subsequent filter plate, and increase the service life of the subsequent filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the structure of an air purification device with noise reduction function for a processing room according to the utility model;

[0015] Figure 2 This is a schematic diagram of the filter plate structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the pre-filter component of the utility model.

[0017] Explanation of the reference numerals: 1. Fan; 2. Small-hole silencer; 3. Filter plate; 4. Pre-filter; 5. HEPA high-efficiency particulate filter; 6. Coconut shell activated carbon filter; 7. Silenced ventilation duct; 8. Sound-absorbing spike; 9. Pre-filter assembly; 10. Shell; 11. Sponge; 12. Limit block. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] like Figure 1-3 As shown, an air purification device with noise reduction function for a processing room includes a fan 1, a pre-filter component 9, a small hole muffler 2, a filter plate 3 and a silencer ventilation duct 7. The fan 1 is installed on the inner wall of the processing room, and the pre-filter component 9, the small hole muffler 2 and the filter plate 3 are connected to the inner wall of the processing room. The pre-filter component 9, the small hole muffler 2 and the filter plate 3 are located at the air inlet position of the fan 1, and the wall of the processing room is connected to the silencer ventilation duct 7. The air in the processing room passes through the pre-filter component 9, the small hole muffler 2 and the filter plate 3 in sequence and is discharged from the silencer ventilation duct 7.

[0020] Specifically, the two ends of the small hole silencer are installed on the wall of the processing room by bolts. The principle of the small hole silencer is based on the spectrum of the jet noise silencer. When the airflow passes through the small hole, the spectrum of the jet noise will shift to high frequency or ultra-high frequency, which will significantly reduce the audible sound components in the spectrum, reduce interference and harm to people, and achieve the purpose of noise reduction.

[0021] like Figure 3 As shown, the pre-filter component 9 includes a shell 10, a receiving groove is provided on the shell 10, a sponge 11 is arranged in the receiving groove, an air vent is provided on the wall of the shell 10 that contacts the bottom of the sponge 11, and a limiting block 12 is provided on the shell 10, and the limiting block 12 limits the sponge 11 in the receiving groove.

[0022] Specifically, the air holes are arranged in a matrix on the wall of the shell to provide ventilation.

[0023] Specifically, the two side walls of the shell are installed on the side walls of the processing chamber by bolts, the sponge is horizontally located in the processing chamber, the exhaust gas passes through the sponge, and enters the small hole muffler 2 after coming out of the air hole. The sponge can pre-filter the dust in the processing chamber, reduce the filtering pressure of the subsequent filter plate 3, and increase the service life of the subsequent filter plate 3.

[0024] like Figure 2 As shown, the filter plate 3 includes a pre-filter 4, a HEPA high-efficiency particulate filter 5 and a coconut shell activated carbon filter 6. The pre-filter 4, the HEPA high-efficiency particulate filter 5 and the coconut shell activated carbon filter 6 are connected to the wall of the processing chamber in sequence, and the pre-filter 4 is located close to the side of the small-hole muffler 2.

[0025] Specifically, the pre-filter 4 can filter large-diameter particles, the HEPA high-efficiency particulate filter 5 can filter smoke and other pollutants with a minimum size of 0.25 microns, and the coconut shell activated carbon filter 6 can strongly adsorb and decompose, further remove benzene, odor and other toxic substances, and prevent secondary pollution caused by thermal shedding of pollutants.

[0026] The inner wall of the sound-absorbing ventilation duct 7 is connected with sound-absorbing spikes 8, and the sound-absorbing spikes 8 are alternately arranged on the inner wall of the sound-absorbing ventilation duct 7. The surface of the sound-absorbing spikes 8 is provided with a plurality of irregular grooves, or the inner wall of the sound-absorbing ventilation duct 7 is connected with a sound-absorbing board, and the sound-absorbing board is composed of sound insulation felt, polyester fiber sound-absorbing board and wave peak sound-absorbing sponge.

[0027] Specifically, by bonding a sound-absorbing wedge or a sound-absorbing plate to the inner wall of the sound-absorbing ventilation duct 7, the wind noise generated by the high-speed flow of air can be absorbed to achieve the purpose of noise reduction.

[0028] Specifically, the wave peak sound-absorbing sponge is a sponge with a concave and convex wave shape formed by special equipment. Its interior is full of tiny gaps and semi-open pores, which can absorb a large amount of incoming sound wave energy, attenuate the sound waves, reduce the interference and reverberation of indoor reflected sound, and improve the purity of the sound. The sound-absorbing wedge can require that the sound waves incident on its surface are almost completely absorbed.

[0029] The use process of the utility model is as follows:

[0030] First, the fan 1 is started, and the fan drives the blades to rotate to suck in the dusty exhaust gas generated during the processing. The exhaust gas passes through the pre-filter component 9 to filter the dust, thereby increasing the service life of the subsequent filter screen;

[0031] After that, the exhaust gas passes through the small hole silencer 2, which can reduce noise, and then passes through the pre-filter 4 to filter large diameter particles, passes through the HEPA high efficiency particulate filter 5 to filter smoke and other pollutants with a minimum size of 0.25 microns, and passes through the coconut shell activated carbon filter 6 to strongly adsorb and decompose, further removing benzene, odor and other toxic substances while preventing secondary pollution caused by thermal shedding of pollutants.

[0032] Finally, the exhaust gas becomes clean air and is discharged through the silencer ventilation duct 7. The sound-absorbing panels or sound-absorbing spikes on the inner wall of the silencer ventilation duct 7 absorb the wind noise generated by the high-speed flow of air, thereby achieving the purpose of noise reduction.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. An air purification device with noise reduction function for a processing room, characterized in that: The invention comprises a fan (1), a pre-filtering assembly (9), a small-hole silencer (2), a filter plate (3) and a silencer ventilation duct (7); the fan (1) is installed on the inner wall of a processing room; the pre-filtering assembly (9), the small-hole silencer (2) and the filter plate (3) are connected to the inner wall of the processing room; the pre-filtering assembly (9), the small-hole silencer (2) and the filter plate (3) are located at the air inlet position of the fan (1); the wall of the processing room is connected to the silencer ventilation duct (7); the air in the processing room passes through the pre-filtering assembly (9), the small-hole silencer (2) and the filter plate (3) in sequence and is discharged from the silencer ventilation duct (7).

2. The air purification device with noise reduction function for a processing room according to claim 1, characterized in that: The pre-filter assembly (9) comprises a shell (10), the shell (10) is provided with a receiving groove, a sponge (11) is arranged in the receiving groove, a vent hole is arranged on the wall of the shell (10) in contact with the bottom of the sponge (11), and a limiting block (12) is arranged on the shell (10), and the limiting block (12) limits the sponge (11) in the receiving groove.

3. The air purification device with noise reduction function for a processing room according to claim 1, characterized in that: The filter plate (3) comprises a pre-filter (4), a HEPA high-efficiency particulate filter (5) and a coconut shell activated carbon filter (6); the pre-filter (4), the HEPA high-efficiency particulate filter (5) and the coconut shell activated carbon filter (6) are sequentially connected to the wall of the processing chamber, and the pre-filter (4) is located close to the side of the small-hole muffler (2).

4. The air purification device with noise reduction function for a processing room according to claim 1, characterized in that: The inner wall of the sound-absorbing ventilation duct (7) is connected to a sound-absorbing spike (8), the sound-absorbing spikes (8) are alternately arranged on the inner wall of the sound-absorbing ventilation duct (7), and the surface of the sound-absorbing spikes (8) is provided with a plurality of irregular grooves, or the inner wall of the sound-absorbing ventilation duct (7) is connected to a sound-absorbing board, and the sound-absorbing board is composed of a sound insulation felt, a polyester fiber sound-absorbing board and a wave peak sound-absorbing sponge.

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