CN217927763U - Noise eliminator for air duct - Google Patents

Abstract

The utility model discloses a noise eliminator for air ducts, which comprises a main air duct, wherein both sides of the main air duct are respectively and fixedly connected with a left air duct and a right air duct, the main air duct is a rectangular duct, two groups of inner mounting frames with opposite positions are assembled at the inner side of the main air duct, and a silencing hoop is assembled between the two groups of inner mounting frames; this noise eliminator for wind channel, through the setting of the inboard amortization hoop in main wind channel, can utilize interior mounting bracket to assemble the multiunit amortization hoop inboard in main wind channel, the setting of the inboard a plurality of groups perforated plates of amortization hoop on the cooperation, can reduce air speed, reduce its resistance that receives, thereby reach the effect of high-efficient noise elimination, furthermore, the setting of the inboard assembled amortization hoop in main wind channel, can assemble the amortization hoop of different quantity and form according to the demand, and then can carry out the effect of high-efficient noise elimination to different specification wind channels according to the demand, the problem that current device is difficult to carry out high-efficient noise elimination to different specification wind channels according to the demand has been solved.

Description

Noise eliminator for air duct

Technical Field

The utility model relates to a wind channel noise elimination technical field specifically is a noise eliminator for wind channel.

Background

Conventional sound insulation structures often require the provision of obstacles to reflect or absorb sound energy for sound insulation purposes. The traditional method is not suitable any more because the pipeline noise elimination needs to be carried out on the premise of meeting the ventilation, so that people make many efforts on the pipeline noise elimination research. At present, the pipeline noise transmission control mainly comprises a plurality of methods such as arranging an elastic joint, installing a silencing elbow, installing a flow orifice plate, installing a pipeline silencer and the like. Compared with the methods, the method for installing the pipeline silencer is the method which is most widely applied and has the most obvious effect at present, but the size of the existing silencer is generally set, so that the pipeline silencer is difficult to correspondingly install according to the requirement of the pipeline, meanwhile, the pipeline silencer is difficult to install in partial turning or air channels with different directions, and the silencing effect is also influenced while the operation is complicated.

Therefore, we propose a muffler device for an air duct.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a noise eliminator for wind channel has solved current device and has been difficult to carry out the problem of high-efficient noise elimination to different specification wind channels according to the demand.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a noise eliminator for wind channel, includes the main wind channel, the both sides in main wind channel are fixedly connected with left wind channel and right wind channel respectively, the main wind channel is the rectangle way, the inboard in main wind channel is equipped with two sets of relative interior mounting brackets in position, and is equipped with the amortization hoop between two sets of interior mounting brackets.

Preferably, the inner mounting frames are fixedly mounted on the inner wall of the main air duct through bolts, and twenty-five groups of silencing hoops with the same interval specification are assembled between the two groups of inner mounting frames.

Preferably, the silencing hoop is formed by assembling five groups of perforated plates, and the five groups of perforated plates are assembled through bolts.

Preferably, two groups of rectangular inner flanges are fixedly mounted on two side walls of the main air duct, outer flanges with the same specification as the inner flanges are fixedly mounted on the outer walls of the left air duct and the right air duct, and fastening bolts are assembled between the inner flanges and the outer flanges.

Preferably, an access slot is formed in the outer side wall of the main air duct, an access door is assembled in the access slot, and a hinge and an opening and closing lock are assembled between the access door and the outer side wall of the main air duct.

Preferably, two sets of hangers in opposite positions are fixedly sleeved on the outer wall of the main air duct, and the main air duct is fixedly mounted on the corresponding support through the hangers.

(III) advantageous effects

The utility model provides a noise eliminator for wind channel. The method has the following beneficial effects:

1. this noise eliminator for wind channel, through the setting of the inboard amortization hoop in main wind channel, can utilize interior mounting bracket to assemble the multiunit amortization hoop inboard in main wind channel, the setting of the inboard a plurality of groups perforated plates of amortization hoop on the cooperation, can reduce air speed, reduce its resistance that receives, thereby reach the effect of high-efficient noise elimination, furthermore, the setting of the inboard assembled amortization hoop in main wind channel, can assemble the amortization hoop of different quantity and form according to the demand, and then can carry out the effect of high-efficient noise elimination to different specification wind channels according to the demand, the problem that current device is difficult to carry out high-efficient noise elimination to different specification wind channels according to the demand has been solved.

2. This noise eliminator for wind channel, through the setting of main wind channel outside access door, can overhaul and clean its inboard amortization hoop and interior mounting bracket through dismantling the access door, the operation is convenient and the practicality is strong, also is convenient for assemble its each inboard subassembly simultaneously, and the suitability is high to each inboard subassembly of main wind channel also is suitable for noise elimination in bend department or vertical wind channel, and application range is wider, is suitable for manufacturing and popularization on a large scale.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic structural view of the main air duct of the present invention;

fig. 4 is a schematic structural view of the silencing hoop of the present invention.

In the figure: 1. a main air duct; 2. a left air duct; 3. a right air duct; 4. a suspension hoop; 5. an inner flange; 6. an outer flange; 7. fastening bolts; 8. an access door; 9. a hinge; 10. unlocking and locking; 11. an inner mounting frame; 12. a sound-deadening hoop; 13. a perforated plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention provides a technical solution: a noise eliminator for an air duct comprises a main air duct 1, wherein a left air duct 2 and a right air duct 3 are respectively and fixedly connected to two sides of the main air duct 1, the main air duct 1 is a rectangular duct, two groups of inner mounting frames 11 which are opposite in position are assembled on the inner side of the main air duct 1, and a noise eliminating hoop 12 is assembled between the two groups of inner mounting frames 11;

in the embodiment, it should be noted that, the noise elimination device for air channels, through the setting of the silencing hoop 12 inside the main air channel 1, multiple groups of silencing hoops 12 can be assembled inside the main air channel 1 by using the inner mounting frame 11, and through the matching of the plurality of groups of perforated plates 13 inside the silencing hoops 12, the air speed can be reduced, and the resistance to the air speed can be reduced, thereby achieving the effect of efficient noise elimination.

In this embodiment, it should be added that the inner mounting brackets 11 are fixedly mounted on the inner wall of the main air duct 1 by bolts, and twenty-five groups of silencing hoops 12 with the same spacing specification are mounted between two groups of inner mounting brackets 11;

in this embodiment, it should be added that the silencing hoop 12 is assembled by five sets of perforated plates 13, and the five sets of perforated plates 13 are assembled by bolts;

the thickness of the perforated plate 13 is increased, so that the low-frequency noise elimination effect can be improved; the smaller the pitch of the perforated plate 13, the better the high frequency effect; and no matter the perforated plate 13 increases in thickness or the pitch decreases, the air flow velocity increases, causing an increase in resistance and an increase in regeneration noise;

in addition, the perforated plate 13 is bent or otherwise shaped to increase the amount of noise reduction, but the regenerative noise increases and the resistance increases; should be considered comprehensively.

In this embodiment, it should be added that two groups of rectangular inner flanges 5 are fixedly installed on two side walls of the main air duct 1, outer flanges 6 with the same specification as the inner flanges 5 are fixedly installed on the outer walls of the left air duct 2 and the right air duct 3, and a fastening bolt 7 is installed between the inner flanges 5 and the outer flanges 6;

wherein, the setting of inner flange 5 and outer flange 6 is convenient for assemble through 6 wind channels of outer flange, also is convenient for dismantle it simultaneously to also be convenient for assemble each subassembly of its inboard.

In this embodiment, it should be added that an access slot is formed on the outer side wall of the main air duct 1, an access door 8 is assembled in the access slot, and a hinge 9 and an unlocking and locking part 10 are assembled between the access door 8 and the outer side wall of the main air duct 1;

wherein, this noise eliminator for wind channel, through the setting of main wind channel 1 outside access door 8, can overhaul and clean its inboard amortization hoop 12 and interior mounting bracket 11 through dismantling access door 8, the operation is convenient and the practicality is strong, also is convenient for assemble its each subassembly of inboard simultaneously, and the suitability is high to each subassembly of main wind channel 1 inboard also is suitable for noise elimination in bend department or vertical wind channel, and application range is wider, is suitable for manufacturing and popularization on a large scale.

In this embodiment, it should be added that two sets of opposite suspension hoops 4 are fixedly sleeved on the outer wall of the main air duct 1, and the main air duct 1 is fixedly mounted on the corresponding bracket through the suspension hoops 4.

The utility model discloses a theory of operation and use flow: when needing the device to carry out the noise elimination to the wind channel, select for use interior mounting bracket 11 and inboard amortization hoop 12 according to the demand in advance, then install the amortization hoop 12 of corresponding quantity according to the demand to can carry out the effect of eliminating the noise to the wind channel of different specifications and shape according to the demand, and when needs overhaul and clean it, only need open access door 8 and examine each subassembly in main wind channel 1 and overhaul and clean, can.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a noise eliminator for wind channel which characterized in that: including main wind channel (1), the both sides difference fixedly connected with left wind channel (2) and right wind channel (3) of main wind channel (1), main wind channel (1) is the rectangle way, the inboard in main wind channel (1) is equipped with two sets of relative interior mounting bracket in position (11), and is equipped with amortization hoop (12) between two sets of interior mounting bracket (11).

2. The muffler device for an air duct according to claim 1, wherein: the inner mounting frames (11) are fixedly mounted on the inner wall of the main air duct (1) through bolts, and twenty-five groups of silencing hoops (12) with the same interval specification are assembled between the two groups of inner mounting frames (11).

3. The muffling device for an air duct according to claim 1, wherein: the silencing hoop (12) is formed by assembling five groups of perforated plates (13), and the five groups of perforated plates (13) are assembled through bolts.

4. The muffler device for an air duct according to claim 1, wherein: fixed mounting has two sets of rectangle inner flange (5) on the both sides wall of main wind channel (1), fixed mounting has outer flange (6) the same with inner flange (5) specification on the outer wall of left side wind channel (2) and right wind channel (3), and is equipped with fastening bolt (7) between inner flange (5) and outer flange (6).

5. The muffling device for an air duct according to claim 1, wherein: the air conditioner is characterized in that an overhaul groove is formed in the outer side wall of the main air duct (1), an overhaul door (8) is assembled in the overhaul groove, and a hinge (9) and an opening and closing lock (10) are assembled between the overhaul door (8) and the outer side wall of the main air duct (1).

6. The muffling device for an air duct according to claim 1, wherein: two groups of suspension hoops (4) with opposite positions are fixedly sleeved on the outer wall of the main air duct (1), and the main air duct (1) is fixedly installed on the corresponding support through the suspension hoops (4).

Images