CN217630597U

CN217630597U - Sound-proof silencing device

Info

Publication number: CN217630597U
Application number: CN202221795265.1U
Authority: CN
Inventors: 张建军; 吴建义; 王培玲; 王旭霞; 张爱萍; 郭锋; 杨栋宇; 武义
Original assignee: TAIYUAN ARCHITECTURAL DESIGN AND RESEARCH INSTITUTE
Current assignee: TAIYUAN ARCHITECTURAL DESIGN AND RESEARCH INSTITUTE
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-10-21
Anticipated expiration: 2032-07-13

Abstract

The utility model belongs to building heating equipment field specifically discloses a noise abatement device gives sound insulation, solves the great problem of noise when heat pump set operation, and the technical scheme of adoption is: the heat pump unit comprises a concrete foundation arranged around a heat pump unit, wherein an air inlet silencing louver is fixedly arranged above the concrete foundation and comprises a rectangular frame, a plurality of inserting pieces are arranged on the rectangular frame at intervals, the section structures of the inserting pieces are in an arrow shape, the arrow-shaped outer frame is made of a perforated aluminum plate, and a centrifugal glass wool layer is coated in the perforated aluminum plate; the front of air inlet noise elimination tripe is provided with the sound insulation access door, and air inlet noise elimination tripe top is provided with the acoustic baffle, the acoustic baffle comprises sound insulation hardy fibreboard, the cotton acoustic layer of glass and the noise elimination damping layer that sets gradually from the outside to the inboard, and the device can form the sound wave barrier around heat pump set, cuts off the absorption sound wave, realizes the function of sound insulation noise elimination.

Description

Sound-proof silencing device

Technical Field

The utility model belongs to building heating equipment field, concretely relates to noise eliminator gives sound insulation.

Background

The air source heat pump unit has the advantages of energy conservation, environmental protection and the like, is widely applied to the heating field, and brings a serious environmental noise problem. According to the relevant regulations, the out-of-home window daytime noise value should be 55 dB (A) or less and the nighttime should be 45 dB (A) or less. Therefore, we first determine the current noise value and the required noise reduction amount when designing the noise reduction device. The optimal noise reduction material is selected and combined with the acoustic analysis software to analyze and design the novel sound insulation and noise elimination device, so that the noise of the air source heat pump unit is effectively reduced by 15-30 dB (A).

The heat pump unit noise is irregular, intermittent and continuous random noise generated by the heat pump unit during operation. The noise level is around 70 to 90db (A). The noise source of the heat pump unit mainly comprises: an axial flow fan at the upper part of the heat pump; a compressor at the lower part of the heat pump. The heat pump unit noise comprises heat pump sound vibration, heat pump unit noise and heat pump unit structure noise, and belongs to noise on physical properties.

SUMMERY OF THE UTILITY MODEL

For the great problem of noise when solving heat pump set operation, the utility model provides a noise abatement device gives sound insulation. The device can form a sound wave barrier around the heat pump unit, and can cut off and absorb sound waves, thereby realizing the functions of sound insulation and noise elimination.

In order to achieve the above object, the utility model adopts the following technical scheme: a sound insulation and noise elimination device comprises a concrete foundation arranged around a heat pump unit, wherein an air inlet noise elimination shutter is fixedly arranged above the concrete foundation and comprises a rectangular frame, a plurality of inserting pieces are arranged on the rectangular frame at intervals, the section structures of the inserting pieces are arrow-shaped, the arrow-shaped outer frame is made of a perforated aluminum plate, and a centrifugal glass wool layer is coated in the perforated aluminum plate;

the front of the sound insulation and noise elimination device is provided with a sound insulation access door, a sound insulation plate is arranged above the air inlet noise elimination shutter, and the sound insulation plate consists of a sound insulation hard fiber board, a glass wool sound absorption layer and a noise elimination damping layer which are sequentially arranged from the outer side to the inner side.

Furthermore, the height of the air inlet silencing louver is the same as that of the heat pump unit.

Furthermore, the top of the rectangular frame is made of galvanized steel sheets. The galvanized steel sheet intensity is bigger, can provide constitution intensity for air inlet noise elimination tripe. The sound insulation board is conveniently installed on the upper layer.

Further, the perforated aluminum plate had a perforation rate of 30%.

Compared with the prior art, the utility model, specifically there is the gain effect to embody: the utility model discloses a light structure, the transport of being convenient for. And air inlet silencing shutters are adopted at the parts with the same height as the heat source unit. The air inlet silencing shutter can meet the requirement of heat dissipation and air inlet of the heat pump unit and can absorb noise to a certain extent. The upper part of the air inlet silencing louver adopts a sound insulation plate. The sound insulation board is a sound insulation hard fiber board with the thickness of 5mm, a sound attenuation damping layer with the thickness of 5mm is coated on the surface adjacent to the air source heat pump unit, and a superfine glass wool sound absorption material with the thickness of 50mm is filled in the sound attenuation damping layer. The sound insulation board can form a sound barrier for isolating and absorbing direct sound waves from a sound source to a sound receiving point, so that part of the sound waves are blocked and reflected, and part of the sound waves are absorbed and attenuated and then reach the sound receiving point through additional attenuation modes such as screen body transmission, screen top diffraction and the like, and the purposes of sound insulation and noise elimination are achieved.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a schematic sectional view of the present invention.

Fig. 3 is a schematic structural diagram of the air intake silencing louver.

FIG. 4 is a large drawing of an insert wafer.

Fig. 5 is a schematic sectional view of the sound insulating panel.

In the figure, 1 is a concrete foundation, 2 is an air inlet noise elimination shutter, 21 is a rectangular frame, 22 is an insertion piece, 221 is a perforated aluminum plate, 222 is a centrifugal glass wool layer, 3 is a sound insulation access door, 4 is a sound insulation plate, 41 is a sound insulation hard fiber plate, 42 is a glass wool sound absorption layer, and 43 is a noise elimination damping layer.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in figure 1, the sound insulation and noise elimination device comprises a concrete foundation 1 arranged around a heat pump unit, wherein an air inlet noise elimination louver 2 is fixedly arranged above the concrete foundation 1, and the height of the air inlet noise elimination louver 2 is the same as that of the heat pump unit. The air inlet silencing shutter 2 needs to meet the requirement of heat dissipation of air inlet of a heat pump unit and has the functions of sound insulation and silencing.

The concrete structure of the air inlet silencing louver 2 shown in figure 3 is as follows: the air inlet noise elimination louver 2 comprises a rectangular frame 21, and a plurality of inserting pieces 22 are arranged on the rectangular frame 21 at intervals. As shown in FIG. 4, the section structure of the insert 22 is arrow-shaped, the outer frame of the arrow-shaped is a perforated aluminum plate 221, and the perforated aluminum plate 221 is internally covered with a centrifugal glass wool layer 222. With the composite structure of the insertion sheet 22, noise generated by the heat pump unit can be absorbed. The gap between adjacent blades 22 can be designed to be 300mm. The whole sound insulation and noise elimination device is used for feeding air from the air inlet noise elimination shutter and exhausting air from the top.

The front of the sound insulation and noise elimination device is provided with a sound insulation access door 3, a sound insulation plate 4 is arranged above the air inlet noise elimination shutter, and the height of the sound insulation plate 4 is designed to be about 1500 mm. As shown in fig. 5, the sound insulating board 4 is composed of a sound insulating hard fiber board 41, a glass wool sound absorbing layer 42, and a sound deadening and damping layer 43, which are arranged in this order from the outside to the inside. And a sound insulation hard fiberboard layer 41 with the thickness of 5mm is used at the outermost side, a sound attenuation damping layer 43 with the thickness of 5mm is coated on the surface adjacent to the air source heat pump unit, and a superfine glass wool sound absorption material with the thickness of 50mm is filled in the sound attenuation damping layer.

The utility model discloses a noise eliminator gives sound insulation can form the sound wave protective screen around heat pump set, cuts off the absorption sound wave, realizes the function of sound insulation noise elimination, also can satisfy heat pump set ventilation cooling's demand simultaneously.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A sound insulation and noise elimination device is characterized in that: the heat pump unit comprises a concrete foundation (1) arranged around a heat pump unit, wherein an air inlet silencing louver (2) is fixedly arranged above the concrete foundation (1), the air inlet silencing louver (2) comprises a rectangular frame (21), a plurality of inserting pieces (22) are arranged on the rectangular frame (21) at intervals, the section structures of the inserting pieces (22) are arrow-shaped, a perforated aluminum plate (221) is adopted as an outer frame of the arrow-shaped, and a centrifugal glass wool layer (222) is coated in the perforated aluminum plate (221);

the front of the air inlet noise elimination shutter (2) is provided with a sound insulation access door (3), a sound insulation board (4) is arranged above the air inlet noise elimination shutter (2), and the sound insulation board (4) is composed of a sound insulation hard fiber board (41), a glass wool sound absorption layer (42) and a noise elimination damping layer (43) which are sequentially arranged from the outer side to the inner side.

2. The sound insulation and noise abatement device of claim 1, wherein: the height of the air inlet silencing louver (2) is the same as that of the heat pump unit.

3. The acoustic noise abatement apparatus of claim 2, wherein: the top of the rectangular frame (21) is made of galvanized steel sheets.

4. The sound insulation and noise abatement device of claim 1, wherein: the perforated aluminum plate (221) had a perforation rate of 30%.