CN216131053U - Ventilation noise-reduction sound-reduction structure for air compressor complete machine - Google Patents

Abstract

The utility model relates to a ventilation, noise reduction and noise reduction structure for an air compressor complete machine, which comprises a sound-proof housing, an air inlet, an air outlet, an air inlet noise reduction and filtering module and an air outlet noise reduction module, wherein the sound-proof housing is provided with the air inlet and the air outlet; the air inlet silencing and filtering module comprises an air inlet framework and a plurality of silencing louvers, the air inlet framework is embedded in the air inlet, the silencing louvers are in a wing shape and are arranged in the air inlet framework from bottom to top at intervals in a horizontal square state, and a plurality of air inlet silencing holes are formed in the noise reduction surface of each silencing louver; the exhaust silencing module comprises an exhaust framework, the exhaust framework is embedded in the exhaust outlet, and a plurality of exhaust silencing holes are formed in the exhaust framework. According to the technical scheme, the noise elimination module is arranged at the air inlet and the air outlet of the sound-proof cover through the ventilation noise reduction structure, so that the external noise transmitted to the cover body when the air compressor runs is directly reduced, and a strong noise reduction effect is realized.

Description

Ventilation noise-reduction sound-reduction structure for air compressor complete machine

Technical Field

The utility model relates to the technical field of noise reduction of air compressor complete machines, in particular to a ventilation noise reduction structure for an air compressor complete machine.

Background

The air compressor is generally composed of a main machine, a motor, a fan, a radiator, an oil-gas barrel and the like, wherein in the operation process, the motor, the fan, a coupler and the like can generate noise, and simultaneously, the noise also comprises fluid vibration noise and aerodynamic noise caused by turbulence and turbulent flow of air flow in an air duct during air intake and exhaust, and the noise can radiate and spread to the periphery in the form of spherical waves and is easy to cause harm to the health of peripheral operators after being exposed to a noise environment for a long time.

In order to solve the noise trouble generated when the air compressor complete machine operates, the current common practice is to arrange a sound-proof shield outside the air compressor complete machine, for example, the publication number is CN212902098U, and the patent name "noise reduction and sound insulation structure of compressor of heat pump water chilling unit" describes the front sound-proof plate, the rear sound-proof plate, the side sound-proof plate, the upper sound-proof plate and the lower sound-proof plate which form the compressor cavity of the heat pump water chilling unit; wherein, the back side surfaces of the front sound insulation board, the rear sound insulation board, the side sound insulation boards, the upper sound insulation board and the lower sound insulation board are all provided with sound insulation layers; the puigging has the wave cotton layer of bump including the surface, and the surface on wave cotton layer is equipped with the aluminium foil layer that is used for separation and reflection sound, and then reduces the high frequency noise in the compressor cavity.

However, the noise reduction effect is still not ideal due to the fact that the structure only carries out preliminary noise reduction, and based on the fact that the section of the air duct is large, if noise is not eliminated at the air inlet and the air outlet of the fan, noise can still be transmitted to the outside of the box body along the air duct, and then large noise can still be generated when the air compressor complete machine operates.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the utility model aims to provide a ventilation noise reduction and noise reduction structure which directly reduces the noise transmitted to the outside of a cover body when an air compressor complete machine operates and realizes a strong noise reduction effect by arranging noise elimination modules at an air inlet and an air outlet of a sound-proof cover so as to solve the problem that the noise of the sound-proof cover in the prior art is reduced only by a sound-proof board and sound-proof cotton arranged in the cover body when the air compressor complete machine operates, but the noise reduction effect is not ideal.

In order to achieve the purpose, the technical solution of the utility model is as follows:

a ventilation noise reduction structure for an air compressor complete machine comprises a sound-proof housing, an air inlet, an air outlet, an air inlet noise reduction and filtering module and an air exhaust noise reduction module, wherein the sound-proof housing is provided with the air inlet and the air outlet;

the air inlet silencing and filtering module comprises an air inlet framework and a plurality of silencing louvers, the air inlet framework is embedded in the air inlet, the silencing louvers are in a wing shape and are arranged in the air inlet framework from bottom to top at intervals in a horizontal square state, and a plurality of air inlet silencing holes are formed in the noise reduction surface of each silencing louver;

the exhaust silencing module comprises an exhaust framework, the exhaust framework is embedded in the exhaust outlet, and a plurality of exhaust silencing holes are formed in the exhaust framework.

Preferably, the soundproof cover comprises a base, a plurality of support columns, soundproof doors and a top cover, wherein the support columns are installed on the base, the soundproof doors are arranged between any two adjacent support columns, and the top cover is arranged on the upper portions of the support columns relative to the base.

Preferably, sound-absorbing cotton is provided on the inner surface of the soundproof door.

Preferably, the intake silencing and filtering module and the exhaust silencing module are both detachably connected to the sound-proof housing.

Preferably, the silencing louver comprises an upper louver and a lower louver which are opposite, and the air inlet silencing hole is formed in the lower louver.

Preferably, a cavity is formed between the upper louver and the lower louver, and the cavity is filled with the sound attenuation filler.

Preferably, the air inlet framework is further provided with a filtering screen cover, the filtering screen cover is positioned on one side of the silencing louver close to the inside of the sound-proof cover, and the filtering screen cover comprises filtering fibers and a filtering mesh pressing plate which are overlapped front and back.

Preferably, the silencing louver further comprises a shielding plate arranged at the transition of the windward side and the noise reduction side of the silencing louver, and the shielding plate is arranged along the length direction of the silencing louver.

Preferably, the air exhaust framework comprises a sound insulation fixing cover and an exhaust silencing fixing plate, the sound insulation fixing cover is embedded in the air outlet, the exhaust silencing fixing plate is covered on the sound insulation fixing cover, and the exhaust silencing hole is formed in the exhaust silencing fixing plate.

Preferably, a plurality of noise elimination insertion plates are arranged at intervals in the sound insulation fixed cover, and the noise elimination insertion plates are wavy along the axial direction of the exhaust noise elimination holes.

Compared with the prior art, the utility model has the advantages that:

this technical scheme's sound-proof housing sets up the noise elimination that admits air and filter module and the exhaust noise elimination module that is used for the noise elimination in air intake department, thereby reduce the noise when the air compressor complete machine admits air, and reduce the noise to the wind channel transmission, and then reduce the decibel of the noise of spreading in the wind channel, and simultaneously, set up the exhaust noise elimination module in air exhaust department under the prerequisite of guaranteeing ventilation and heat dissipation, the noise that outwards transmits of reduction that can the at utmost, thereby make the noise that the air compressor complete machine produced can obtain very big weakening, and then realize comparing in the better noise reduction effect of prior art.

Drawings

FIG. 1 is a schematic view of the overall construction of the sound enclosure of the present invention;

FIG. 2 is a schematic view of the overall structure of the intake silencer and filter module of the present invention;

FIG. 3 is an enlarged view of section A of the intake silencer and filter module of FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the overall structure of the acoustic damper of the present invention;

FIG. 5 is an enlarged cross-sectional view of one end of the silencing louver of FIG. 4 according to the present invention;

FIG. 6 is a schematic view of the overall construction of the exhaust muffler module of the present invention;

FIG. 7 is a schematic view of the overall structure of another view of the exhaust muffler module of the present invention;

fig. 8 is a schematic sectional structure view of the exhaust muffler module of the present invention.

As shown in the figure:

1. an air intake silencing and filtering module; 101. an air inlet framework; 102. silencing shutters; 102a, an air inlet silencing hole; 102b, upper louvers; 102c, lower louvers; 102d, silencing filler; 103. a filtering net cover; 103a, filter fibers; 103b, a filter mesh pressing plate; 104. a shutter; 2. an exhaust silencing module; 201. an air exhaust framework; 201a, exhaust silencing holes; 201b, a sound insulation fixing cover; 201c, an exhaust silencing fixed plate; 202. a silencing plug board; 3. a base; 4. a support pillar; 5. a soundproof door; 501. an air inlet; 6. a top cover; 601. an air outlet.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific examples.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships which are usually placed when the products of the present invention are used, and are used for the purpose of simplifying the description, but do not indicate or imply that the orientations are necessarily a specific orientation and a specific orientation configuration and operation, and thus, the present invention is not limited thereto.

As shown in fig. 1, a ventilation noise reduction and noise reduction structure for an air compressor, as a conventional feature, comprises a sound-proof housing for housing outside the air compressor, the sound-proof housing is provided with an air inlet 501 and an air outlet 601, an air duct is formed between the air inlet 501 and the air outlet 601,

as shown in fig. 1 and 2 and fig. 4 to 6, in particular, it further includes an intake silencing and filtering module 1 and an exhaust silencing module 2, where the intake silencing and filtering module 1 and the exhaust silencing module 2 are respectively installed in the intake 501 and the exhaust 601 of the soundproof cover;

specifically, the intake silencing and filtering module 1 includes an intake frame 101 and a plurality of silencing louvers 102, the intake frame 101 is frame-shaped, the shape of the intake frame is consistent with the shape of the intake port 501, and the intake frame is embedded in the intake port 501, the silencing louvers 102 are arranged along the height direction of the intake frame 101 at intervals, that is, each silencing louver 102 is arranged horizontally and sequentially arranged from the lower direction of the intake frame 101, correspondingly, the silencing louvers 102 can also be set to be perpendicular to the horizontal plane and arranged at intervals along the length direction of the intake frame 101, the silencing louvers 102 are made of metal sound absorption and insulation boards, so that the noise is weak primarily when intake air is taken, and the shape of the whole silencing louvers 102 is configured into an airplane wing shape, the upper end face of each silencing louver 102 is a windward face, and the windward face of each silencing louver is kept as smooth as much as possible, and further, during the intake process, the windage resistance is effectively reduced and the stability of the air flow is ensured, the lower end surface of the noise elimination louver 102 is a noise reduction surface, and a plurality of air inlet noise elimination holes 102a are formed in the noise reduction surface, so that noise generated in the air inlet process is reduced while air flow is divided;

the exhaust silencing module 2 comprises an exhaust framework 201 embedded in the exhaust opening 601, the shape of the exhaust framework 201 is consistent with that of the exhaust opening 601, the exhaust framework 201 is embedded in the exhaust opening 601, the exhaust framework 201 covers the whole exhaust opening 601, a plurality of exhaust silencing holes 201a are formed in the exhaust framework 201, airflow passes through the exhaust silencing holes 201a and then reaches the outside of the sound-proof cover to ensure ventilation and heat dissipation, and in the process of passing through, the exhaust silencing holes 201a can divide the airflow and noise, so that the noise is prevented from being gathered, and the noise is reduced;

based on the above arrangement, the sound-proof housing of this technical scheme sets up the noise elimination that admits air and filter module 1 and the noise elimination module 2 that exhausts that is used for the noise elimination in air intake 501 department, thereby reduce the noise when the air compressor complete machine admits air, and reduce the noise of transmission to the wind channel, and then reduce the decibel of the noise of spreading in the wind channel, simultaneously, set up the noise elimination module 2 that exhausts in air exit 601 department under the prerequisite of guaranteeing ventilation and heat dissipation, the noise that can furthest reduces outside transmission, thereby make the noise that the air compressor complete machine produced can obtain very big weakening, and then realize comparing in the better noise reduction effect of prior art.

As shown in fig. 1, the soundproof cover includes a base 3, a plurality of support columns 4, a soundproof door 5 and a top cover 6, the support columns 4 are installed on the base 3, the soundproof door 5 is disposed between any two adjacent support columns 4, the top cover 6 is disposed on the upper portion of the support column 4 relative to the base 3, the air inlet 501 is disposed on the soundproof door 5, and the air outlet 601 is disposed on the top cover 6.

Furthermore, the inner surface of the soundproof door 5 is provided with sound-absorbing cotton, the sound-absorbing cotton is configured into two layers, in the embodiment, countless micropores on the sound-absorbing cotton can further absorb and convert a part of sound energy, and the sound-absorbing cotton and the soundproof door 5 cooperate to weaken the noise in the air duct to the greatest extent.

Further, the noise elimination and filtration module 1 that admits air and the noise elimination module 2 that exhausts all are connected with the sound-proof housing through the detachable mode, and this detachable mode can be for buckle connection, threaded connection to and can satisfy other connected modes that can dismantle the requirement, based on the aforesaid sets up, the operating personnel of being convenient for carries out the dismouting to the noise elimination and filtration module 1 that admits air and the noise elimination module 2 that exhausts, thereby changes and washs when damaging or will clearing up.

As shown in fig. 2 to 5, the noise elimination louver 102 is composed of an upper louver 102b and a lower louver 102c that are opposed to each other, and the intake noise elimination hole 102a is opened in the lower louver 102 c.

As shown in fig. 5, a cavity is formed between the upper louver 102b and the lower louver 102c, and a sound-absorbing filler 102d is filled in the cavity, and the sound-absorbing filler 102d is used for absorbing noise passing through the air inlet sound-absorbing hole 102a, thereby consuming sound energy and reducing noise when the air compressor enters air, and has the characteristics of stability, insect prevention, corrosion resistance and water resistance, thereby avoiding interference of insects, rain water or other corrosive gas and liquid.

As shown in fig. 3 and fig. 5, further, a filter screen 103 is further disposed in the air intake framework 101, the filter screen 103 is located on one side of the noise elimination louver 102 close to the inside of the noise insulation cover, and is fully distributed in the inner section of the whole air inlet framework 101, the filter screen cover 103 comprises filter fibers 103a and filter mesh pressing plates 103b which are overlapped in front and back, the filter fibers 103a can be made of glass wool, based on the arrangement, when the air compressor is used for air inlet, because the silencing louvers 102 are arranged at intervals, the airflow reaches the position of the filter fiber 103a after passing through the upper end surface and the lower end surface of the silencing louvers 102, the filter fiber 103a absorbs and filters dust and other impurities in the airflow, and then the airflow enters the sound-proof cover through the meshes on the filter mesh pressing plate 103b, the air flow entering the sound-proof shield can be thoroughly filtered, the air inlet cleanliness is further improved, and the service life of the air compressor complete machine is prolonged.

As shown in fig. 2 to 5, further, the noise elimination louver 102 further includes a shielding plate 104 disposed at the transition of the windward side and the noise reduction side of the noise elimination louver 102, and because the noise elimination louver has an overall shape of a wing, based on the above arrangement, the shielding plate 104 can prevent rain and snow from penetrating into the sound-proof enclosure along the windward side and the noise reduction side of the noise elimination louver 102, so as to avoid the problem that the sound-proof cotton is wetted after rain and snow enter the sound-proof enclosure, and the sound-proof effect of the sound-proof cotton is deteriorated, thereby greatly improving the protection level of the box body, and the shielding plate 104 is disposed along the length direction of the noise elimination louver 102, and in this embodiment, the shielding plate 104 is disposed in a manner perpendicular to the horizontal plane, thereby providing all-directional rain and snow protection for the entire noise elimination louver 102.

As shown in fig. 6, further, the exhaust framework 201 includes a sound-insulating fixing cover 201b and an exhaust silencing fixing plate 201c, the sound-insulating fixing cover 201b is configured to conform to the shape of the exhaust opening 601 and is embedded in the exhaust opening 601, the exhaust silencing fixing plate 201c is covered on the sound-insulating fixing cover 201b, in this embodiment, the sound-insulating fixing cover 201b and the exhaust silencing fixing plate 201c may be fixedly connected or detachably connected, and the exhaust silencing hole 201a is opened on the exhaust silencing fixing plate 201 c.

As shown in fig. 7 and 8, a plurality of noise elimination insertion plates 202 are further arranged in the sound insulation fixing cover 201b at intervals, the noise elimination insertion plates 202 are fixed to the inner wall of the sound insulation fixing cover 201b, so that the interior of the sound insulation fixing cover 201b is divided into a plurality of chambers, the noise elimination insertion plates 202 are in a wavy shape which undulates along the axial direction of the exhaust noise elimination holes 201a, and based on the above arrangement, after noise passes through the air duct and enters the sound insulation fixing cover 201b, the noise can be primarily divided by the noise elimination insertion plates 202 and collides with the outer wall of the undulated noise elimination insertion plates 202, so that noise energy consumption is reduced, and finally, the noise is divided by the exhaust noise elimination holes 201a, so that noise aggregation is prevented, and noise reduction effect is further improved.

The foregoing embodiments and description have been presented only to illustrate the principles and preferred embodiments of the utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as hereinafter claimed.

Claims (10)

1. A ventilation noise reduction and noise reduction structure for an air compressor complete machine comprises a sound-proof shield, wherein an air inlet (501) and an air outlet (601) are arranged on the sound-proof shield, and is characterized by further comprising an air inlet noise reduction and filtering module (1) and an air exhaust noise reduction module (2);

the air inlet silencing and filtering module (1) comprises an air inlet framework (101) and a plurality of silencing louvers (102), wherein the air inlet framework (101) is embedded in the air inlet (501), the silencing louvers (102) are in a wing shape and are arranged in the air inlet framework (101) at intervals from bottom to top in a horizontal state, and a plurality of air inlet silencing holes (102a) are formed in a silencing surface of the silencing louvers (102);

the exhaust silencing module (2) comprises an exhaust framework (201), the exhaust framework (201) is embedded in the exhaust opening (601), and a plurality of exhaust silencing holes (201a) are formed in the exhaust framework (501).

2. The ventilation, noise reduction and noise reduction structure for the air compressor and air compressor is characterized in that the sound insulation cover comprises a base (3), a plurality of supporting columns (4), a sound insulation door (5) and a top cover (6), wherein the supporting columns (4) are installed on the base (3), the sound insulation door (5) is arranged between any two adjacent supporting columns (4), and the top cover (6) is arranged on the upper portions of the supporting columns (4) relative to the base (3).

3. A ventilation, noise reduction and sound reduction structure for an air compressor as claimed in claim 2, wherein the sound insulation door (5) is provided with sound absorbing cotton on the inner face.

4. The ventilation, noise reduction and sound reduction structure for the air compressor as claimed in claim 1, wherein the air intake, noise reduction and filtration module (1) and the air exhaust, noise reduction module (2) are both connected with the sound-proof housing in a detachable manner.

5. A ventilation, noise reduction and sound reduction structure for an air compressor, as set forth in claim 1, characterized in that the noise reduction louver (102) comprises an upper louver (102b) and a lower louver (102c) which are opposed to each other, and the air intake noise reduction hole (102a) opens in the lower louver (102 c).

6. The ventilation, noise reduction and sound reduction structure for the air compressor is characterized in that a cavity is formed between the upper louver (102b) and the lower louver (102c), and a sound attenuation filler (102d) is filled in the cavity.

7. The ventilation, noise reduction and sound reduction structure for the air compressor is characterized in that a filter screen (103) is further arranged in the air inlet framework (101), the filter screen (103) is positioned on one side of the noise elimination louver (102) close to the inside of the noise insulation cover, and the filter screen (103) comprises filter fibers (103a) and filter mesh pressing plates (103b) which are overlapped in a front-back mode.

8. A ventilation, noise reduction and sound reduction structure for an air compressor, as claimed in claim 1, wherein the noise reduction louver (102) further comprises a shielding plate (104) arranged at the transition of the windward side and the noise reduction side of the noise reduction louver, and the shielding plate (104) is arranged along the length direction of the noise reduction louver (102).

9. The ventilation, noise reduction and noise reduction structure for the air compressor as claimed in claim 1, wherein the air exhaust framework (201) comprises a sound insulation fixing cover (201b) and an exhaust noise reduction fixing plate (201c), the sound insulation fixing cover (201b) is embedded in the air outlet (601), the exhaust noise reduction fixing plate (201c) is covered on the sound insulation fixing cover (201b), and the exhaust noise reduction hole (201a) is formed in the exhaust noise reduction fixing plate (201 c).

10. The ventilation, noise reduction and sound reduction structure for the air compressor is characterized in that a plurality of sound attenuation inserting plates (202) are arranged in the sound insulation fixing cover (201b) at intervals, and the sound attenuation inserting plates (202) are wavy and undulate along the axial direction of the exhaust sound attenuation holes (201 a).

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