CN220117498U

CN220117498U - Noise reduction sound insulation board with sound absorption material

Info

Publication number: CN220117498U
Application number: CN202321308301.1U
Authority: CN
Inventors: 魏良好
Original assignee: Shanghai Kelion Environment Co ltd
Current assignee: Shanghai Kelion Environment Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-12-01
Anticipated expiration: 2033-05-26

Abstract

The utility model discloses a noise reduction and insulation board with sound absorption materials, which comprises: the sound absorption cotton layer, the porous layer, the microporous rock plate and the sound insulation plate; the sound absorption cotton layer is characterized in that two sides of the sound absorption cotton layer are respectively provided with a porous layer, the outer side of one porous layer is provided with a microporous rock plate, the outer side of the other porous layer is provided with a sound insulation plate, reinforcing ribs are buried in the sound absorption cotton layer, frustum-shaped holes are uniformly arranged in the porous layer, the cotton layer comprises a sound absorption layer and a sound absorption layer, the sound absorption layer is made of centrifugal glass cotton and rock cotton materials, and the sound absorption layer comprises centrifugal glass cotton and rock cotton. The noise-reducing sound-insulating plate with the sound-absorbing material has good sound-absorbing, silencing and sound-insulating effects.

Description

Noise reduction sound insulation board with sound absorption material

Technical Field

The utility model relates to the technical field of sound insulation boards, in particular to a noise reduction sound insulation board with sound absorption materials.

Background

Noise pollution has become a major problem in the control of environmental pollution in the twentieth century. How to meet the requirements of people on calm and comfortable living and working environments without being influenced by noise and how to improve the sound insulation capability of the enclosure structure are important aspects.

The waste water treatment equipment in the sewage plant needs to use a large amount of air type noise equipment such as fan equipment, motor equipment and the like, for example, the noise types generated by Roots fans are various, and the air type noise generated by exhaust air and exhaust air, the mechanical noise generated by pipeline components of an equipment shell, the electromagnetic noise generated by a motor and the like are included. The noise value of aerodynamic noise and mechanical noise is relatively large, and the noise value can reach about 110 dB, so that the arrangement of the sound insulation plate with relatively good effect becomes a technical problem to be solved urgently.

Disclosure of Invention

Aiming at the problems in the prior art, the noise reduction and insulation board with the sound absorption material is provided.

The specific technical scheme is as follows:

a noise reduction and insulation panel with sound absorbing material, comprising: cotton layer, porous layer, microporous rock plate and sound insulation plate;

the cotton layer is characterized in that two sides of the cotton layer are respectively provided with one porous layer, one porous layer is provided with the microporous rock plate on the outer side, the other porous layer is provided with the sound insulation plate on the outer side, reinforcing ribs are buried in the cotton layer, frustum-shaped holes are uniformly arranged in the porous layer, the cotton layer comprises a sound absorption layer and a sound attenuation layer, and the sound absorption layer is made of centrifugal glass cotton and rock cotton materials.

In the noise reduction and insulation board with the sound absorption material, the characteristics are that the opening directions of the frustum-shaped holes in the two porous layers are opposite.

In the noise reduction and insulation board with the sound absorption material, the microporous rock board is further characterized in that a plurality of protruding columns are arranged on one side of the microporous rock board, which faces the porous layer, and the protruding columns extend all the way and penetrate through the sound insulation board.

The noise-reducing and sound-insulating plate with the sound-absorbing material further has the characteristics that the noise-reducing and sound-insulating plate further comprises a frame, wherein the frame is a square frame and is wrapped on the side edges of the cotton layer, the porous layer, the microporous rock plate and the sound-insulating plate.

In the noise reduction and insulation board with the sound absorption material, the noise reduction and insulation board also has the characteristics that two sides of the frame are transversely bent and extend to the microporous rock board and the sound insulation board.

The noise-reducing and sound-insulating plate with the sound-absorbing material is characterized by further comprising a plurality of fasteners penetrating through the frame, the cotton layer, the porous layer, the microporous rock plate and the sound-insulating plate, wherein the fasteners are arranged in the area where the frame and the microporous rock plate transversely overlap.

The technical scheme has the positive effects that:

according to the noise reduction and sound insulation board with the sound absorption material, when the noise reduction and sound insulation board is installed, the microporous rock board faces the inside of equipment, the sound insulation board faces the outside of the equipment, the microporous rock board with high noise reduction coefficient, high sound absorption efficiency and stable performance is adopted for sound absorption and sound insulation, sound is further absorbed and sound insulation through the porous layer with the frustum-shaped holes, the sound absorption layer is used for achieving sound absorption, the sound is consumed in the sound insulation layer to the greatest extent, finally, the porous layer and the sound insulation board are used for sound absorption and sound insulation, the sound is prevented from reaching the outside of the equipment, and good sound absorption and sound insulation effects are achieved.

Drawings

Fig. 1 is a schematic structural view of a noise reduction and insulation board with sound absorption materials provided by the utility model;

fig. 2 is a schematic cross-sectional view of the noise reduction and insulation board with the sound absorbing material of fig. 1.

In the accompanying drawings: 1. a cotton layer; 2. a porous layer; 21. a first porous layer; 22. a second porous layer; 23. a frustum-shaped hole; 3. a microporous rock plate; 31. a convex column; 4. a sound insulation board; 6. a frame; 61. a side plate; 62. a bending plate; 7. a fastener.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the indicated apparatus or element must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.

In the description of the present utility model, it should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 and 2, there is shown a preferred embodiment, showing a noise reduction and insulation board with sound absorbing material, comprising: cotton layer 1, porous layer 2, microporous rock plate 3 and sound insulation plate 4;

the cotton layer 1 is provided with a porous layer 2 respectively in both sides, and the outside of a porous layer 2 is provided with micropore rock plate 3, and the outside of another porous layer 2 sets up sound insulation board 4, buries the strengthening rib in the cotton layer 1, evenly arranges frustum shape hole 23 in the porous layer 2, wherein, cotton layer 1 includes acoustic absorption layer and amortization layer, the acoustic absorption layer adopts centrifugal glass cotton and rock wool.

Wherein, cotton layer 1, porous layer 2, micropore rock board 3 and sound insulation board 4 bond each other.

The microporous rock plate 3 can adopt a microporous rock sound barrier, the microporous rock sound barrier is a sound insulation barrier which is prepared by taking microporous rock, perlite and silicate cement as raw materials and adding a certain proportion of water reducing agent and crack resistance fibers, and the light cement sound barrier is a novel screen body for absorbing and insulating sound. Compared with the traditional sound barrier, the sound-absorbing wall has the characteristics of high noise reduction coefficient, high sound absorption efficiency, stable performance, higher strength, low manufacturing cost, convenience in installation and the like.

In the prior art, the sound insulation board 4 has a sound insulation effect in theory for common objects, but a board with an average sound insulation amount (an infinite piece of material is placed between a sound source and a measured point in an infinite space) of more than 30dB is called a sound insulation board. The acoustical panel is typically a high density material.

Optionally, the reinforcing ribs are grid plates, and the cotton layer 1 and the reinforcing ribs are of an integrated structure and are manufactured in advance. The sound absorption layer and the sound attenuation layer of the cotton layer 1 can be prefabricated members, the sound absorption layer and the sound attenuation layer are pressed together in advance, the sound absorption layer is close to the microporous rock plate 3, and the sound attenuation layer is close to the sound insulation plate 4. Most of sound absorbing materials are loose porous materials, rock wool and glass wool are inorganic fiber materials, the structures of the rock wool and the glass wool are very similar, the same sound absorbing principle is followed, and sound energy is converted into heat energy through vibration friction of fibers, so that the rock wool and the glass wool are all sound absorbing materials. The sound absorbing material has better sound absorbing effect on medium and high frequency, and the sound absorbing effect rank of the glass wool is higher than that of the rock wool.

Preferably, the microporous rock plate 3 is provided with a number of studs 31 on the side facing the porous layer 2, the studs 31 extending all the way through the sound insulation plate 4. Specifically, in this embodiment, the protruding columns 31 are rivets, one ends of the rivets are buried in the microporous rock plate 3, and the other ends of the rivets penetrate through the sound insulation plate 4 and then are knocked flat to form an enlarged head to realize riveting, so that the cotton layer 1, the porous layer 2, the microporous rock plate 3 and the sound insulation plate 4 are fixed. Optionally, at least three rivets are arranged and distributed in the central areas of the microporous rock plate 3 and the sound insulation plate 4.

Preferably, the openings of the frustoconical pores 23 in the two porous layers 2 are in opposite directions. The porous layer 2 near the microporous rock plate 3 is a first porous layer 21, the porous layer 2 near one end of the sound insulation plate 4 is a second porous layer 22, one end of the first porous layer 21 with a large diameter of the frustum-shaped hole 23 faces the microporous rock plate 3, one end with a small diameter faces the sound insulation plate 4, one end of the second porous layer 22 with a large diameter of the frustum-shaped hole 23 faces the sound insulation plate 4, and one end with a small diameter faces the microporous rock plate 3. Alternatively, the frustoconical pores 23 of the first porous layer 21 are collinear with and the same size as the frustoconical pores 23 of the second porous layer 22. The structure of the sequentially laminated microporous rock plate 3, the first porous layer 21, the cotton layer 1, the second porous layer 22 and the sound insulation plate 4.

Further, the sound insulation board further comprises a frame 6, wherein the frame 6 is a square frame and is wrapped on the sides of the cotton layer 1, the porous layer 2, the microporous rock plate 3 and the sound insulation board 4.

Specifically, the frame 6 is a square frame and comprises four side plates 61 connected end to end, the side plates 61 are in contact with the sides of the porous layer 2, the microporous rock plate 3 and the sound insulation plate 4, and in order to achieve a better edge wrapping effect, the two sides of the frame 6 are transversely bent and extend to the microporous rock plate 3 and the sound insulation plate 4. In other words, two sides of the frame 6 are provided with bending plates 62 which are bent transversely, one bending plate 62 is in parallel contact with the microporous rock plate 3, the other bending plate 62 is in parallel contact with the sound insulation plate 4, and two sides of four sides of the frame 6 are bent.

Optionally, the frame 6 is made of aluminum alloy.

Further, a plurality of fasteners 7 penetrating through the frame 6, the cotton layer 1, the porous layer 2, the microporous rock plate 3 and the sound insulation plate 4 are further included, and the fasteners 7 are arranged in the area where the frame 6 and the microporous rock plate 3 transversely overlap. Alternatively, the fastener 7 may be a bolt, screw, or rivet structure. Fasteners 7 are provided at the four corners of the bent plate 62 of the bezel 6 for achieving a connection fixation of the bezel 6 to other plate structures.

According to the noise reduction and sound insulation board with the sound absorption material, when the noise reduction and sound insulation board with the sound absorption material is installed, the microporous rock board 3 faces the inside of equipment, the sound insulation board 4 faces the outside of the equipment, the microporous rock board 3 with high noise reduction coefficient, high sound absorption efficiency and stable performance is adopted for sound absorption and sound insulation, sound is further absorbed and sound insulation through the porous layer 2 with the frustum-shaped holes 23, the sound is consumed to the greatest extent in the cotton layer 1, and finally the sound is reduced and sound insulation is carried out through the porous layer 2 and the sound insulation board 4, so that the sound is prevented from reaching the outside of the equipment.

The foregoing is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the embodiments and scope of the present utility model, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present utility model, and are intended to be included in the scope of the present utility model.

Claims

1. A noise reduction and insulation panel with sound absorbing material, comprising: cotton layer, porous layer, microporous rock plate and sound insulation plate;

2. The noise reduction and insulation board with sound absorbing material according to claim 1, wherein the openings of the frustum-shaped holes in the two porous layers are opposite in direction.

3. The noise reducing and insulating panel with sound absorbing material according to claim 2, wherein the side of the microporous rock panel facing the porous layer is provided with a plurality of studs extending all the way through the insulating panel.

4. A noise reducing and insulating panel with sound absorbing material according to any one of claims 1 to 3, further comprising a frame, the frame being a square frame, and being wrapped around the sides of the cotton layer, the porous layer, the microporous rock plate and the insulating panel.

5. The noise reducing and insulating panel with sound absorbing material according to claim 4, wherein both sides of the frame are bent laterally and extend toward the microporous rock plate and the insulating panel.

6. The noise reducing and insulating panel with sound absorbing material according to claim 5, further comprising a plurality of fasteners extending through the border, the cotton layer, the porous layer, the microporous rock panel and the insulating panel, the fasteners being disposed in areas of the border transversely overlapping the microporous rock panel.