A roof fan sound absorption room

Abstract

The utility model belongs to building noise insulation technical field, concretely is a kind of roof fan sound absorption room, including fan, pipeline, ground, wall and furred ceiling, the outside of fan, the outside of pipeline, wall and furred ceiling all use aluminium perforated sound absorption board to carry out sound absorption insulation. The aluminium perforated sound absorption board includes by outside to inside sequentially arranged facing, frame, buffer coating, sound absorption body, and wherein: the facing material is perforated aluminium plate, the frame material is aluminium alloy frame, the buffer coating material is glass fibre cloth, the sound absorption body material is centrifugal glass wool board, combine multilayer sound absorption material and effective vibration isolation technology, significantly improve the isolation effect of fan and pipeline system noise. Especially to the sealing treatment of the connecting place of pipeline and fan, can effectively prevent noise through pipeline to building interior transmission.

Description

Technical Field

[0001] This utility model relates to the field of building noise insulation technology, specifically a rooftop fan sound-absorbing room. Background Technology

[0002] With the continuous advancement of urbanization, ventilation systems and associated ductwork are widely used in various facilities such as ventilation and air conditioning systems. These systems are typically installed on the roof or other concealed locations of buildings to ensure air circulation and temperature control.

[0003] However, there are still significant technical challenges in popularizing fan systems for indoor spaces that require sound insulation. This is because existing sound insulation technologies mainly rely on sound absorption treatment of building walls and floors. However, for sound-absorbing rooms with installed fans and ducts, the sound absorption effect of wall and floor materials alone is insufficient to effectively solve the problem of coupled noise transmission caused by the addition of fans and ducts. Specifically, noise from the indoor space may be transmitted outward through the ducts, and noise generated by the fans and ducts may also be transmitted into the indoor space. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a rooftop fan sound-absorbing room. Through innovative sound insulation and energy absorption technologies, it effectively improves the noise insulation performance of the fan and ductwork, thereby improving the noise environment inside and outside the building. The room includes the fan, ductwork, floor, walls, and ceiling. The exterior of the fan, the exterior of the ductwork, the walls, and the ceiling are all insulated with perforated aluminum sound-absorbing panels.

[0005] Preferably, the aluminum perforated sound-absorbing panel includes a decorative surface, a frame, a buffer covering layer, and a sound absorber arranged sequentially from the outside to the inside, wherein: the decorative surface material is a perforated aluminum plate, the frame material is an aluminum alloy frame, the buffer covering layer material is fiberglass cloth, and the sound absorber material is centrifugal glass wool board.

[0006] Preferably, the thickness of the finish is 0.8 mm, and the perforation rate of the finish is 12-13%.

[0007] Preferably, the centrifugal glass wool board used for sound absorption has a thickness of 50 mm and a density of 48 kg / m³. 3 .

[0008] Preferably, the density of the buffer coating layer is 110 g / m².

[0009] Preferably, the connection between the pipe and the interior is further provided with a number of slit silencers with staggered pore directions. The slit silencer includes silencing plates stacked in sequence, and the spacing between the silencing plates is equal to the thickness of the silencing plates.

[0010] Preferably, the sound-absorbing sheet comprises a surface layer, a middle layer, and an inner layer arranged sequentially from the outside to the inside, wherein: the surface layer is a 0.4mm thick perforated aluminum plate with a perforation rate of 18-20%, the middle layer is a fiberglass cloth with a density of 110g / ㎡, and the sound-absorbing material is centrifugal glass wool board.

[0011] Preferably, two adjacent slit silencers are connected by a perforated aluminum plate with a perforation rate of 18-20% and a thickness of 0.4 mm.

[0012] Preferably, a silencing chamber is provided between the pipe and the slit silencer, and the silencing chamber has the same thickness as the slit silencer.

[0013] Compared with the prior art, this utility model provides a rooftop fan sound absorption room, which has the following beneficial effects:

[0014] This application proposes a novel sound-absorbing room structural design that combines multi-layered sound-absorbing materials and effective vibration isolation technology to significantly improve the noise insulation effect of the fan and duct system. In particular, the sealing treatment at the connection between the duct and the fan effectively prevents noise from being transmitted into the building through the duct. By reducing the vibration and noise generated by the fan and its propagation within the building, noise pollution both inside and outside the building is reduced, providing more efficient sound insulation performance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the wall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the ceiling structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the aluminum perforated sound-absorbing panel structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the slit silencer structure of this utility model;

[0019] Figure 5 This is a schematic diagram showing the installation of the fan, pipes, and wall surface of this utility model.

[0020] In the diagram: 1. Aluminum perforated sound-absorbing panel; 101. Finish; 102. Frame; 103. Buffer covering layer; 104. Sound absorber; 2. Sound-absorbing sheet; 201. Surface layer; 202. Middle layer; 203. Inner layer; 3. Fan; 4. Pipe; 5. Sound-absorbing chamber; 6. Buffer pad. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example

[0023] The following is combined with Figures 1 to 5 This application introduces a rooftop fan sound-absorbing room, which, through innovative sound insulation and energy absorption technologies, effectively isolates the noise generated by the fan 3 and duct 4 system, thereby improving the noise environment inside and outside the building. The design of this fan 3 sound-absorbing room optimizes the configuration of the fan 3, duct 4, walls, ceiling, and floor, effectively solving the noise transmission problem of existing fan 3 systems, especially addressing the noise issue at the connection between the fan 3 and duct 4.

[0024] See Figure 1 , Figure 2 and Figure 5 It is worth noting that this application is mainly aimed at sound-absorbing rooms with ventilation provided by fan 3, but is not limited to sound-absorbing rooms with ventilation provided by fan 3. The position of fan 3 can be on the side, top or bottom, without specific restrictions. In most feasible environments, a buffer pad 6 should be added to the fixed end of fan 3 to reduce regular high-frequency vibration.

[0025] If the fan 3 is far from the room, there is no need to soundproof the fan 3. It is sufficient to cover the connection between the pipe 4 and the room with aluminum perforated sound-absorbing panels 1.

[0026] 1. Sound insulation design for fan 3 and duct 4

[0027] See Figure 3 In this embodiment, the exterior of the fan 3 and the duct 4 is treated with perforated aluminum sound-absorbing panels 1 for sound insulation. The design structure of the perforated aluminum sound-absorbing panel 1 consists of the following parts:

[0028] Finish 101: Made of 0.8mm thick perforated aluminum sheet with a perforation rate of 12-13%. This perforated aluminum sheet can effectively absorb the noise generated by the fan 3 and the duct 4 during operation, and also plays a certain role in sound reflection and insulation.

[0029] Frame 102: The aluminum alloy frame serves as the supporting frame 102, which has high strength and corrosion resistance, ensuring the stability and long-term use of the sound-absorbing panel.

[0030] Buffer covering layer 103: The covering layer is made of fiberglass cloth with a density of 110g / ㎡, which can further enhance the sound insulation effect and reduce noise transmission.

[0031] Sound absorber 104: Made of centrifugal glass wool board, 50mm thick, with a density of 48kg / m³. 3 Centrifugal glass wool boards have excellent sound absorption properties and can significantly reduce noise transmission.

[0032] The structural design of the aluminum perforated sound-absorbing panel 1 enables the noise generated by the fan 3 and the duct 4 to be effectively absorbed and isolated, preventing the noise from being transmitted to other areas of the building through the walls, ceiling or duct 4.

[0033] 2. Noise insulation at the connection point between pipe 4 and the indoor environment.

[0034] At the connection point between pipe 4 and the indoor area, several slit silencers with staggered pore directions are used, as detailed below. Figure 5 The slit silencer consists of multiple layers of sound-absorbing plates 2, with the spacing between the plates 2 being equal to their thickness. See [link / description]. Figure 4 The specific structure of the muffler is as follows:

[0035] Surface 201: Surface 201 is a 0.4mm thick perforated aluminum plate with a perforation rate of 18-20%. The perforated design of this aluminum plate can further reduce sound propagation.

[0036] Middle layer 202: Made of 110g / ㎡ density fiberglass cloth to enhance sound absorption.

[0037] Inner Layer 203: The inner layer 203 uses centrifugal glass wool board, which has strong sound absorption capabilities and can effectively absorb high-frequency noise. Besides centrifugal glass wool board, cellulose aerogel can also be used. Cellulose aerogel has a low density and is relatively suitable for ceilings or doors and windows that need to be frequently opened and closed. However, cellulose aerogel is more expensive, has a relatively shorter lifespan, and has a higher overall cost.

[0038] The silencer's structural design effectively reduces noise as it propagates within pipe 4, thus preventing noise generated by fan 3 and pipe 4 from spreading to other areas through pipe 4.

[0039] 3. Setting up the silencing chamber 5

[0040] A silencing chamber 5 is also provided between pipe 4 and the slit silencer. The thickness of the silencing chamber 5 is the same as that of the slit silencer, and it further absorbs sound. The silencing chamber 5 effectively reduces noise reflection within pipe 4, lowers the speed of sound propagation, and thus better isolates the noise generated by the fan 3 and pipe 4 system. Figure 5 It is a layout instance.

[0041] 4. Overall noise control effect of the system

[0042] By combining the above design, this embodiment can achieve the following effects:

[0043] Effective noise isolation: The noise generated by the fan 3 and the duct 4 is effectively isolated at the source through the effective configuration of multiple layers of sound-absorbing materials, buffer covering layer 103, sound-absorbing sheet 2 and sound-absorbing chamber 5.

[0044] Reduce vibration transmission: The sealing design at the connection between the fan 3 and the pipe 4 can effectively prevent vibration and noise from being transmitted to the interior of the building through the pipe 4, further reducing noise pollution.

[0045] Enhanced noise control inside and outside the building: By improving the sound insulation technology of the sound-absorbing room of fan 3, the noise impact of fan 3 and duct 4 system on the surrounding environment can be significantly reduced, providing a quieter indoor space.

[0046] 5. Application Examples

[0047] The rooftop fan sound-absorbing room described in this embodiment is suitable for various buildings requiring noise control, especially for locations with rooftop fans, such as kitchen exhaust fans in shopping malls, ventilation fans in factories, and office buildings, hotels, and apartments with air-cooled heat pump outdoor units. Through proper design and installation, this sound-absorbing room can minimize the impact of noise on the building's interior and surrounding environment while ensuring the normal operation of ventilation and air conditioning systems.

[0048] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A roof fan plenum, characterized by, The system includes a fan (3), a pipe (4), a floor, a wall, and a ceiling. The exterior of the fan (3), the exterior of the pipe (4), the wall, and the ceiling are all sound-absorbing and insulated using perforated aluminum sound-absorbing panels (1). The perforated aluminum sound-absorbing panel (1) includes a decorative surface (101), a frame (102), a buffer covering layer (103), and a sound absorber (104) arranged sequentially from the outside to the inside. The decorative surface (101) is made of perforated aluminum plate, the frame (102) is made of aluminum alloy frame, the buffer covering layer (103) is made of fiberglass cloth, and the sound absorber (104) is made of centrifugal glass wool board. The pipe (4) is also provided with several slit silencers with staggered pore directions at the connection point with the room. The slit silencer includes silencing plates (2) stacked sequentially. The spacing between the silencing plates (2) is equal to the thickness of the silencing plates (2).

2. A roof fan room according to claim 1, characterised in that: The thickness of the finish (101) is 0.8 mm, and the perforation rate of the finish (101) is 12-13%.

3. The rooftop fan sound-absorbing room according to claim 1, characterized in that: The density of the buffer covering layer (103) is 110 g / m².

4. A roof fan room according to claim 1, wherein: The two adjacent slit silencers are connected by a perforated aluminum plate with a perforation rate of 18-20% and a thickness of 0.4mm.

5. A roof fan room according to claim 1, wherein: A silencing chamber (5) is provided between the pipe (4) and the slit silencer, and the silencing chamber (5) has the same thickness as the slit silencer.

Images