CN213687245U

CN213687245U - Nested double-side shutter silencer

Info

Publication number: CN213687245U
Application number: CN202022159369.0U
Authority: CN
Inventors: 叶贵鑫
Original assignee: Fujian Dianzhu Environmental Protection Engineering Co ltd
Current assignee: Fujian Dianzhu Environmental Protection Engineering Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-07-13
Anticipated expiration: 2030-09-27

Abstract

The utility model relates to a nested bilateral louver silencer, which comprises a silencing box, wherein the silencing box is divided into an upper silencing area and a lower silencing area by corresponding clapboards, and the lower silencing area comprises a middle air inlet area and two side silencing areas; the outer sides of the two side muffling areas are respectively provided with corresponding circulating muffling areas, and the upper ends of the circulating muffling areas are communicated to the two sides of the upper muffling area; the silencing areas on the two sides are respectively provided with a silencing louver in a fixing device, and the middle part of the upper silencing area is provided with a sound absorption and insulation plate in a fixing device. The utility model discloses can play the effect of steady voltage reposition of redundant personnel to effectively satisfy amount of wind business turn over demand, and have the noise reduction effect many times, thereby can effectively play the effect of strengthening the noise elimination.

Description

Nested double-side shutter silencer

Technical Field

The utility model relates to a silencer specifically indicates a two side tripe silencers of nested formula.

Background

The mounting space of air supply and exhaust equipment of an air conditioner room is limited, and the air inlet and outlet openings are often not completely matched in size design, so that the silencer adopting the conventional size design cannot meet the normal air inlet and outlet quantity requirement. And because the conventional silencer has the conditions of insufficient silencing quantity and weak low-frequency treatment, the silencer with the conventional size cannot meet the requirement of air volume inlet and outlet, has a non-ideal noise reduction effect on the original noise, and even can generate serious secondary noise. Therefore, the existing silencer cannot solve the problem of noise exceeding commonly existing in the existing air conditioner room, and the noise emission value of the existing air conditioner room is up to 75dB (A) or more, so that serious interference is generated to office places and public areas of hotels.

Consequently, to the noise spectral characteristic of air conditioner business turn over wind equipment, design a section and can play the effect of steady voltage reposition of redundant personnel to effectively satisfy amount of wind business turn over demand, and have a lot of noise reduction effect, thereby can effectively play the two side tripe silencers of nested formula of the effect of strengthening the noise elimination and be the utility model discloses a research purpose.

Disclosure of Invention

To the technical problem that above-mentioned prior art exists, the utility model provides a two side shutter silencer of nested formula, the technical problem that above-mentioned prior art exists can effectively be solved to the two side shutter silencer of this nested formula.

The technical scheme of the utility model is that:

a nested double-side shutter silencer comprises a silencing box,

the silencing box is divided into an upper silencing area and a lower silencing area by corresponding partition plates, and the lower silencing area comprises a middle air inlet area and two side silencing areas;

the outer sides of the two side muffling areas are respectively provided with corresponding circulating muffling areas, and the upper ends of the circulating muffling areas are communicated to the two sides of the upper muffling area;

silencing shutters are respectively fixed in the silencing areas on the two sides, and a sound absorption and insulation plate is fixed in the middle of the upper silencing area;

the bottom of the silencing box is provided with an air inlet communicated to the middle air inlet area, and the upper part of the silencing box is provided with an air outlet communicated to the upper sound absorption area.

The silencing box is an interlayer silencing box, the silencing box is composed of an outer plate and an inner plate interlayer, and a first glass wool layer is filled between the outer plate and the inner plate.

The periphery of the first glass wool layer is wrapped with a first glass fiber cloth layer and a first PVF waterproof sound-transmitting film.

The outer plate is made of a galvanized plate, and the inner plate is made of a perforated aluminum plate.

The silencing louver is composed of a plurality of silencing inserting pieces arranged in different heights, the silencing inserting pieces are made of a group of inserting piece plates arranged up and down, a layer of corresponding second glass wool layer is clamped between the inserting piece plates, and two ends of each silencing inserting piece are arranged in a wedge shape.

And the periphery of the second glass wool layer is wrapped with a second glass fiber cloth layer and a second PVF waterproof sound-transmitting film.

The insertion plate is made of a perforated aluminum plate.

The sound absorption and insulation board is formed by assembling multilayer boards side by side.

The utility model has the advantages that:

1) the utility model discloses an upper portion sound absorption district and lower part noise elimination district are separated into to the noise elimination case, and the lower part noise elimination district contains middle part air inlet district and both sides noise elimination district, and the outside in both sides noise elimination district is equipped with corresponding circulation noise elimination district respectively, and the upper end in circulation noise elimination district communicates to the both sides in upper portion sound absorption district, and there is the noise elimination tripe fixed device respectively in the noise elimination district of both sides, and the middle part fixed device in upper portion sound absorption district has the sound absorption sound insulation board. The air enters along the middle air inlet area, then is subjected to pressure-stabilizing shunt through the silencing areas at the two sides, and in the shunting process, the air flow is in contact with the inner wall of the silencing box to realize silencing, and meanwhile, under the action of the silencing shutter, the silencing effect is effectively enhanced; the air volume after the reposition of redundant personnel converges to the anechoic box top after the circulation area of anechoic elimination silences once more, under the effect of sound absorption sound insulation board, avoids coming from the wind of subtend to produce and dashes each other to when changing the wind direction, played the effect of anechoic once more. The whole effect of steady voltage reposition of redundant personnel that realizes to effectively satisfy amount of wind business turn over demand, and have the effect of making an uproar many times, the noise elimination volume reaches more than 25dB (A), thereby can effectively play the effect of strengthening the noise elimination.

2) The utility model discloses a silencing box which is an interlayer silencing box, the silencing box is composed of an outer plate and an inner plate interlayer, and a first glass wool layer is filled between the outer plate and the inner plate; the silencing louver consists of a plurality of silencing inserting pieces arranged at different heights, the silencing inserting pieces are made of a group of inserting piece plates arranged up and down, a layer of corresponding second glass wool layer is clamped between the inserting piece plates, and two ends of each silencing inserting piece are arranged in a wedge shape. Through the setting of planking, inner panel to and the setting of inserted sheet board, effectively ensure the utility model discloses a structural stability, simultaneously through the intervention on the cotton layer of first glass and the cotton layer of second glass, on stable in structure's basis, effectively promote noise cancelling effect.

3) The periphery of the first glass wool layer of the utility model is wrapped with a first glass fiber cloth layer and a first PVF waterproof sound-transmitting film; the periphery of the second glass wool layer is wrapped with a second glass fiber cloth layer and a second PVF waterproof sound-transmitting film. Under the effect of first glass silk cloth layer, second glass silk cloth layer, and the waterproof sound-transmitting film of first PVF, the waterproof sound-transmitting film of second PVF, prevent effectively that the cotton layer of first glass and the cotton layer of second glass from producing and volatilizing to effectively promote the utility model discloses a practical function.

4) The utility model discloses a sound absorption sound-proof board is assembled by multilayer panel side by side and forms, and multilayer panel is assembled side by side and not only can effectively realize the water conservancy diversion and further eliminate the noise, and can effectively ensure that sound absorption sound-proof board has sufficient installation stability to effectively further promote the utility model discloses a practical effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view a-a in fig. 1.

Fig. 3 is a sectional view taken along line B-B in fig. 1.

Detailed Description

To facilitate understanding of those skilled in the art, the structure of the present invention will now be described in further detail with reference to the following examples:

referring to fig. 1-3, a nested double-sided louvered muffler includes a muffling box 1,

the silencing box 1 is divided into an upper silencing area 3 and a lower silencing area 4 by corresponding partition plates 2, and the lower silencing area 4 comprises a middle air inlet area 401 and two side silencing areas 402;

the outer sides of the two side muffling areas 402 are respectively provided with corresponding circulating muffling areas 5, and the upper ends of the circulating muffling areas 5 are communicated to the two sides of the upper muffling area 3;

the silencing louvers 6 are respectively arranged in the silencing areas 402 at the two sides, and the sound absorption and insulation plate 7 is arranged in the middle of the upper silencing area 3;

the bottom of the silencing box 1 is provided with an air inlet 8 communicated to the middle air inlet area 401, and the upper part of the silencing box 1 is provided with an air outlet 9 communicated to the upper sound absorption area 3.

The silencing box 1 is an interlayer silencing box, the silencing box 1 is composed of an outer plate 101 and an inner plate 102 in an interlayer mode, and a first glass wool layer 103 is filled between the outer plate 101 and the inner plate 102 (in the embodiment, the outer plate 101 and the inner plate 102 are mainly reinforced through light steel keels).

The periphery of the first glass wool layer 103 is wrapped with a first glass fiber cloth layer and a first PVF waterproof sound-transmitting film.

The outer plate 101 is made of a galvanized plate, and the inner plate 102 is made of a perforated aluminum plate.

The silencing louver 6 is composed of a plurality of silencing insertion pieces arranged at different heights, the silencing insertion pieces are made of a group of insertion piece plates 601 arranged up and down, a layer of corresponding second glass wool layer 602 is clamped between the insertion piece plates 601, and two ends of each silencing insertion piece are arranged in a wedge shape (in the embodiment, the group of insertion piece plates 601 arranged up and down are mainly reinforced through light steel keels).

The periphery of the second glass wool layer 602 is wrapped with a second glass fiber cloth layer and a second PVF waterproof sound-transmitting film.

The patch panel 601 is made of a perforated aluminum sheet.

The sound absorption and insulation plate 7 is formed by assembling multilayer plates side by side.

When the silencer is in work, air enters along the middle air inlet area 401, then is subjected to pressure stabilization and flow division through the silencing areas 402 on the two sides, in the flow division process, air flow is in contact with the inner wall of the silencing box 1 to realize silencing, and meanwhile, under the action of the silencing shutter 6, the silencing effect is effectively enhanced; the air volume after the reposition of redundant personnel is carried out the noise elimination again through circulation noise elimination district 5 and is merged into noise elimination case 1 top, under the effect of sound absorption sound insulation board 7, avoids coming from the wind of subtend to produce and dashes each other to when changing the wind direction, played the effect of noise elimination once more. The whole effect of steady voltage reposition of redundant personnel that realizes to effectively satisfy amount of wind business turn over demand, and have the effect of making an uproar many times, the noise elimination volume reaches more than 25dB (A), thereby can effectively play the effect of strengthening the noise elimination.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a two side tripe silencers of nested formula, includes noise damping case (1), its characterized in that:

the silencing box (1) is divided into an upper silencing area (3) and a lower silencing area (4) through corresponding partition plates (2), and the lower silencing area (4) comprises a middle air inlet area (401) and two side silencing areas (402);

the outer sides of the two side muffling areas (402) are respectively provided with corresponding circulating muffling areas (5), and the upper ends of the circulating muffling areas (5) are communicated to the two sides of the upper muffling area (3);

silencing shutters (6) are respectively arranged in the silencing areas (402) on the two sides, and a sound absorption and insulation plate (7) is arranged in the middle of the upper silencing area (3);

an air inlet (8) communicated to the middle air inlet area (401) is formed in the bottom of the silencing box (1), and an air outlet (9) communicated to the upper sound absorption area (3) is formed in the upper portion of the silencing box (1).

2. The nested double-sided louvered muffler of claim 1, wherein: the silencing box (1) is an interlayer silencing box, the silencing box (1) is composed of an outer plate (101) and an inner plate (102) in an interlayer mode, and a first glass wool layer (103) is filled between the outer plate (101) and the inner plate (102).

3. The nested double-sided louvered muffler of claim 2, wherein: the periphery of the first glass wool layer (103) is wrapped with a first glass fiber cloth layer and a first PVF waterproof sound-transmitting film.

4. The nested double-sided louvered muffler of claim 3, wherein: the outer plate (101) is made of a galvanized plate, and the inner plate (102) is made of a perforated aluminum plate.

5. The nested double-sided louvered muffler of claim 1, wherein: the silencing louver (6) is composed of a plurality of silencing inserting pieces arranged in different heights, the silencing inserting pieces are made of a group of inserting piece plates (601) arranged up and down, a layer of corresponding second glass wool layer (602) is clamped between the inserting piece plates (601), and two ends of the silencing inserting pieces are both arranged in a wedge shape.

6. The nested double-sided louvered muffler of claim 5, wherein: and a second glass fiber cloth layer and a second PVF waterproof sound-transmitting film are wrapped on the periphery of the second glass wool layer (602).

7. The nested double-sided louvered muffler of claim 6, wherein: the insertion plate (601) is made of a perforated aluminum plate.

8. The nested double-sided louvered muffler of claim 1, wherein: the sound absorption and insulation plate (7) is formed by assembling multilayer plates side by side.