CN212689869U

CN212689869U - Louver silencer for ventilation and heat dissipation

Info

Publication number: CN212689869U
Application number: CN202020666277.9U
Authority: CN
Inventors: 何金龙; 陈航; 杨承合; 杜胜波; 葛亚辉
Original assignee: Shanghai Shenhua Acoustics Equipment Co ltd
Current assignee: Shanghai Shenhua Acoustics Equipment Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2021-03-12
Anticipated expiration: 2030-04-27

Abstract

The utility model discloses a louver silencer for ventilation and heat dissipation, which relates to a silencer, comprising a shell, an upper blade arranged at the upper end of the shell, a lower blade arranged at the lower end of the shell and a middle blade arranged in the shell, and is characterized by also comprising a plurality of silencing devices, wherein the silencing devices are all arranged in the shell, and a silencing device is respectively arranged between every two adjacent middle blades; each of the muffling devices comprises: a base; the outer cover shell is arranged at the upper end of the base, and a plurality of first through holes are respectively formed in two sides of the outer cover shell; the sound absorption unit module comprises a plurality of sound absorption unit modules, wherein a plurality of sound absorption unit modules are arranged in an outer housing, each sound absorption unit module is horizontally arranged, and a gap is arranged between every two adjacent sound absorption unit modules; the outer cover comprises a first guide plate, a first guide plate is arranged on the outer edge of the upper end of the outer cover, and one side, far away from the outer cover, of the first guide plate is bent downwards. It has the function that can realize the heat dissipation and reduce the noise.

Description

Louver silencer for ventilation and heat dissipation

Technical Field

The utility model relates to a silencer especially involves a be used for ventilation cooling's tripe silencer.

Background

Various medium-pressure regulating boxes for urban gas are numerous and mostly distributed in noise-sensitive areas, and although the overall noise level is not as high as that of the high-pressure regulating boxes, the quantity is huge, and shelters such as enclosing walls and the like are not arranged around the medium-pressure regulating boxes, so that wide noise pollution can be formed. According to the gas design specifications, all medium-pressure regulating boxes are provided with ventilation openings to ensure that once gas leaks, the gas can be exhausted and diluted to the atmosphere to prevent deflagration, and the ventilation openings are usually designed into louvered ventilation openings. There has been much work and production in noise reduction for such box internal piping and box structures, but there have been few noise control measures for such ventilation louvers, where both noise reduction and ventilation need to be kept clear.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for ventilation cooling's tripe silencer for solve above-mentioned technical problem.

The utility model adopts the technical scheme as follows:

a louver silencer for ventilation and heat dissipation comprises a shell, upper blades arranged at the upper end of the shell, lower blades arranged at the lower end of the shell and middle blades arranged in the middle of the shell, and is characterized by also comprising a plurality of silencing devices, wherein the silencing devices are arranged in the shell, and one silencing device is arranged between every two adjacent middle blades;

each of the muffling devices comprises:

a base;

the outer cover shell is arranged at the upper end of the base, and a plurality of first through holes are respectively formed in two sides of the outer cover shell;

the sound absorption unit modules are arranged in the outer housing, each sound absorption unit module is horizontally arranged, and an interval is arranged between every two adjacent sound absorption unit modules;

the outer cover comprises a first guide plate, wherein the first guide plate is arranged on the outer edge of the upper end of the outer cover shell, and one side, far away from the outer cover shell, of the first guide plate is bent downwards.

Preferably, each of the sound absorption unit modules includes:

a sound absorbing sheet;

the upper partition plate is arranged at the upper end of the sound absorption sheet, and a plurality of second through holes are formed in the upper partition plate;

the lower end of the sound absorption sheet is provided with the lower partition plate, the lower partition plate is provided with a plurality of third through holes, and each third through hole is respectively opposite to one second through hole;

and one side of the upper partition board, which is far away from the sound absorption sheet, and one side of the lower partition board, which is far away from the sound absorption sheet, are respectively provided with a plurality of second guide plates.

Preferably, each of the muffling devices further comprises a glass wool board, and two sides of each of the outer casings are respectively provided with one glass wool board.

Preferably, the longitudinal section of each base is in an isosceles trapezoid structure.

Preferably, the interval between every two adjacent sound absorption unit modules is 60-80 mm.

Preferably, each of the first through holes has a diameter of 30 mm.

As a further preference, each of the second through holes and each of the third through holes has a diameter of 20 mm.

The technical scheme has the following advantages or beneficial effects:

the utility model adopts the louver silencer, which is arranged in the ventilation opening of the building, not only can radiate heat and ventilate, but also can reduce noise; the noise is subjected to double noise reduction treatment, and the noise decibel can be effectively reduced.

Drawings

Fig. 1 is a front view of the louver silencer for ventilation and heat dissipation of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a front view of the silencer of the present invention;

fig. 4 is a perspective view of a silencer according to the present invention;

fig. 5 is a schematic view of an internal structure of the silencer of the present invention.

In the figure: 1. a housing; 11. an upper blade; 12. a lower blade; 13. a middle blade; 2. a silencer device; 21. a base; 22. an outer casing; 23. a first through hole; 24. a sound absorption unit module; 241. a sound absorbing sheet; 242. an upper partition plate; 243. a lower partition plate; 244. a second through hole; 245. a third through hole; 246. a second baffle; 25. a first baffle; 26. a glass wool board.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

Fig. 1 is a front view of the louver silencer for ventilation and heat dissipation of the present invention; FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1; fig. 3 is a front view of the silencer of the present invention; fig. 4 is a perspective view of a silencer according to the present invention; fig. 5 is a schematic view of an internal structure of the silencer of the present invention. Referring to fig. 1 to 5, a preferred embodiment is shown, which comprises:

the utility model provides a tripe silencer for ventilation cooling, includes shell 1, sets up at the upper end of shell 1 upper blade 11, sets up the lower blade 12 of the lower extreme of shell 1 and sets up the well blade 13 in the middle part of shell 1, still includes a plurality of silencing device 2, and a plurality of silencing device 2 all set up the inside at shell 1, and wherein, be equipped with a silencing device 2 between every two adjacent well blades 13 respectively. As shown in fig. 2, in the present embodiment, the upper blade 11, the lower blade 12 and the middle blade 13 are all located in the casing 1, and two sides of the upper blade 11, the lower blade 12 and the middle blade 13 are respectively connected with two side inner walls of the casing 1. A passage is arranged between every two adjacent middle blades 13, the silencing device 2 is positioned in the passage, and a gap is arranged between the upper surface of the silencing device 2 in the embodiment and the lower surface of the middle blade 13 on the upper side of the silencing device.

Each muffler device 2 includes:

a base 21.

The outer cover 22, outer cover 22 set up the upper end at base 21, and the both sides of outer cover 22 are equipped with a plurality of first through-holes 23 respectively.

The sound absorption unit module 24, the inside of the outer casing 22 is equipped with a plurality of sound absorption unit modules 24, each sound absorption unit module 24 is respectively arranged horizontally, and an interval is arranged between every two adjacent sound absorption unit modules 24.

The first guide plate 25 is arranged on the outer edge of the upper end of the outer casing 22, and the side, away from the outer casing 22, of the first guide plate 25 is bent downwards. In the present embodiment, the two sides of the outer cover 22 refer to the left and right sides of the outer cover 22, as viewed in the direction shown in fig. 2. The noise can enter the housing 1 from the left side or the right side of the housing 1 and then enter the outer cover 22 from the first through hole 23, and the sound absorption unit module 24 can absorb the noise. In this embodiment, set up first guide plate 25 and can be used for the reflected noise, can increase the reflection number of times of noise in shell 1, guarantee that the sound absorption unit module can fully absorbed noise.

Further, as a preferred embodiment, each sound absorption unit module 24 includes:

the sound absorbing sheet 241.

The upper partition plate 242 is provided, the upper end of the sound absorbing sheet 241 is provided with the upper partition plate 242, and the upper partition plate 242 is provided with a plurality of second through holes 244.

The lower partition plate 243 is arranged at the lower end of the sound absorption sheet 241, the lower partition plate 243 is provided with a plurality of third through holes 245, and each third through hole 245 is respectively opposite to one second through hole 244. In this embodiment, the upper partition plate 242 and the lower partition plate 243 are provided to protect the sound-absorbing sheet 241, and noise can enter the sound-absorbing sheet through the second through hole 244 and the third through hole 245.

The second baffle 246, one side of the upper partition plate 242 away from the sound-absorbing sheet 241 and one side of the lower partition plate 243 away from the sound-absorbing sheet 241 are respectively provided with a plurality of second baffles 246. In this embodiment, the second baffle 246 is provided to increase the strength of the upper and

lower baffle plates

242 and 243 and to increase the number of times the noise is reflected in the outer casing 22, so that the sound absorbing sheet 241 can sufficiently absorb the noise.

Further, as a preferred embodiment, each sound damping device 2 further comprises a glass wool board 26, and a glass wool board 26 is disposed on each side of each outer casing 22. In this embodiment, through setting up the cotton board 26 of glass, can absorb the noise for the first time before the noise gets into the dustcoat 22, then absorb through sound absorption unit module 24 again. In this embodiment, through carrying out dual absorption to the noise, can effectively weaken the decibel of noise.

Further, as a preferred embodiment, the longitudinal section of each base 21 is an isosceles trapezoid structure. In this embodiment, the base 21 is provided to increase the stability of the outer casing 22.

Further, as a preferred embodiment, the interval between every two adjacent sound absorption unit modules 24 is 60mm to 80 mm. In this embodiment, the interval between every two adjacent sound absorption unit modules 24 is 70 mm.

Further, as a preferred embodiment, the diameter of each first through hole 23 is 30 mm.

Further, in a preferred embodiment, each of the second through holes 244 and each of the third through holes 245 have a diameter of 20 mm.

The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.

Claims

1. A louver silencer for ventilation and heat dissipation comprises a shell, upper blades arranged at the upper end of the shell, lower blades arranged at the lower end of the shell and middle blades arranged in the middle of the shell, and is characterized by also comprising a plurality of silencing devices, wherein the silencing devices are arranged in the shell, and one silencing device is arranged between every two adjacent middle blades;

each of the muffling devices comprises:

a base;

2. The louver muffler for ventilation heat dissipation of claim 1, wherein each of the sound absorbing unit modules comprises:

a sound absorbing sheet;

3. The louver silencer for ventilation and heat dissipation of claim 1, wherein each of said muffling means further comprises a glass wool board, one on each side of each of said outer casings.

4. The louver silencer for ventilation and heat dissipation of claim 1, wherein each of said bases has an isosceles trapezoid-shaped longitudinal section.

5. The louver silencer for ventilation and heat dissipation of claim 1, wherein the interval between every two adjacent sound absorption unit modules is 60mm to 80 mm.

6. The louver muffler for ventilating and heat dissipating as claimed in claim 1, wherein each of the first through holes has a diameter of 30 mm.

7. The louver muffler for ventilation heat dissipation of claim 2, wherein each of the second through holes and each of the third through holes has a diameter of 20 mm.