Which companies specialize in sound insulation and noise reduction are better?

Industrial sound insulation and silencing solutions

With the rapid development of the industrial era, various types of factories are emerging one after another, followed by varying degrees of noise caused by factory equipment. Noise pollution has a great impact on the social environment and workshop workers, including the surrounding environment. So how to reduce these pollution impacts, the following are some basic measures and methods provided by noise reduction companies.

Professional sound insulation company

(1) Control and eliminate noise sources, which is the fundamental measure to prevent noise hazards; different solutions should be adopted according to specific situations. Use silent or low-pitched equipment to replace noisy equipment, such as using hydraulic pressure instead of noisy forging, welding instead of riveting, shuttleless instead of shuttle woven fabrics, etc., all of which can achieve better results. Noise sources that are allowed to be located remotely in production, such as fans, motors, etc., should be moved outside the workshop or isolation measures should be taken.

In addition, try to improve the precision of the machine and minimize the impact, friction and vibration of machine parts, which can also reduce production noise. When designing a factory building, sound sources should be reasonably configured. Separating factories that produce strong noise from residential areas and high-noise workshops from low-noise workshops can also reduce the harm of noise.

(2) There are generally the following measures to control the spread of noise. 1) Sound absorption: Use sound-absorbing materials to decorate the inner surfaces of the workshop, such as walls and roofs, or hang space sound absorbers in the workshop to absorb radiation and reflect sound energy, thereby reducing the noise intensity. Materials with good sound absorption effects include glass wool, slag wool, foam plastics, felt, cotton batting, aerated concrete, sound-absorbing panels, wood wool boards, etc. 2) Muffler: Use a device that can prevent the propagation of sound and allow air flow to pass through, that is, a muffler. This is the main measure to prevent aerodynamic noise. Mufflers include resistive mufflers that use sound-absorbing materials to muffle sound, resistive mufflers made based on the filtering principle, and impedance composite mufflers designed using the above two principles. 3) Sound insulation In some cases, certain materials and devices can be used to seal the sound source and isolate it from the surrounding environment, such as sound insulation covers and sound insulation rooms. The sound insulation structure should be tight to prevent external vibration from affecting the sound insulation effect. 4) Vibration isolation In order to prevent vibration noise from being transmitted through solid materials such as floors and walls, vibration reduction devices, such as rubber pads and asphalt, etc., are installed at the foundation of the machine and the connections between floors and walls. 5) Health care measures: Strengthen personal protection. When the noise in the production site cannot be controlled temporarily, or when you need to work under special high-noise conditions, wearing personal protective equipment is an effective measure to protect the hearing organs. Earplugs are the most commonly used type, and their sound isolation effect can reach about 30 decibels. The sound insulation effect of earmuffs and helmets is better than that of earplugs, but they are not convenient to use and the cost is high, so they need to be improved.

Soundproof room production design plan

The primary basis for soundproof room production is to determine the usage of soundproof room materials based on the use effect of the soundproof room, and then determine the soundproof room production based on the site area. size size. The noise reduction and soundproof room is to control the noise generated by the equipment in the soundproof room to avoid affecting the surroundings. The test soundproof room is to isolate a quiet environment in a relatively noisy environment. The only connection point between the two is to ensure the soundproof room. A certain amount of sound insulation must be achieved. The details of the soundproof room production and design plan are as follows:

Determining the size of the soundproof room

The soundproof room is divided into internal dimensions and external dimensions. The internal size refers to the length, width and height (L) of the available space in the soundproof room. , W, H), the outer dimension is the area of ??the entire soundproof room, including the total thickness of the soundproof wall. The main difference between the inside and outside dimensions is affected by the sound insulation effect of the soundproof room. The higher the sound insulation requirements, the thicker the wall thickness of the soundproof room, and the higher the difference between the inside and outside dimensions.

Soundproof room wall production

The sound insulation effect of the soundproof room mainly comes from the production of soundproof walls. Generally, the effective insulation volume is above 30 decibels, so during the soundproof room production process, sound insulation The walls should be made of materials with good sound insulation effect. The main frame of the wall of the soundproof room generally adopts the main keel frame structure, and the wall adopts a sound-absorbing, sound-absorbing and sound-insulating composite wall. The main materials are sound-absorbing and sound-insulating panels, shock-absorbing and damping materials, fireproof filter cloth, etc.

The decorative material of the soundproof room is generally high-quality color steel plate (surface baking process), and the interior metal microporous sound-absorbing layer is used in the soundproof room.

Soundproof room ceiling production

The soundproof room ceiling production plan and the soundproof room wall production plan generally use the same plan. There will be no explanation here. Please refer to the soundproof room wall production process. .

Floor vibration isolation of soundproof room

The ground vibration isolation treatment of soundproof room is also very important. If it is not handled well, the sound insulation effect of the entire soundproof room will be greatly reduced, and the sound from the ground will be greatly reduced. It mainly comes from low-frequency air sounds and high-frequency noises such as footsteps on the ground, impact sounds, and machine operation sounds. The usual solution is to use a double "suspended" structure as a whole in the soundproof room to form a "floating structure". A suspended floor is made in the form of a vibration isolation trench, and the entire soundproof room is placed on it. At the same time, the floor uses shock-absorbing pads and damping dampers. The vibrator can effectively block vibration waves and other noise from the workshop.

Soundproof room soundproof door production

In order to facilitate people to enter and exit or check the operation of the equipment, the soundproof room will basically not be fully enclosed, so matching soundproof doors will be installed. The reserved size space of the soundproof door is relatively large, so it must be reasonably designed, otherwise it will affect the overall sound insulation effect of the soundproof room. The sound insulation amount of the sound insulation door needs to meet the sound insulation effect of the sound insulation room. The materials for the sound insulation door are mainly steel plate, calcium silicate board, carbon fiber wool, rock wool and other materials. The interior and exterior decoration materials of the sound insulation door are all made of steel plate. The surface is painted (the color is the same as the overall paint color of the soundproof room). What needs to be noted during the production process is that the soundproof door needs to be treated with shock absorbers at the connection with the soundproof room wall to achieve a sealing and vibration isolation effect and prevent sound from escaping into the soundproofing through weak links such as door frames and wall gaps. Indoor sound insulation effect.

Production of soundproof windows in soundproof rooms

Some soundproof rooms are equipped with soundproof windows to facilitate work or observation. The soundproof windows are all fixed double-layer tempered glass soundproof windows, double-layered. Sound-absorbing components are provided in the gaps between the sound-insulating windows to absorb a small amount of sound energy passing through the first-layer windows, further improving the sound insulation capacity of the sound-insulating windows.

Lighting wiring in soundproof rooms

Lighting systems and power strips are also indispensable configurations in soundproof rooms, so the handling of wiring in soundproof rooms is also a problem that cannot be ignored and should be avoided When external signal lines, wires and other lines are introduced into the room, noise is transmitted into the soundproof room through the gaps. The wire holes need to be sealed with sealing materials with good sealing performance.

Ventilation and heat dissipation in the soundproof room

In order to ensure good air circulation in the soundproof room and prevent the heat generated by equipment operation from being effectively released, ventilation and heat dissipation in the soundproof room is also essential. The ventilation volume of the soundproof room is based on the room area design. Noise reduction soundproof rooms are generally treated by using resistive mufflers. Test soundproof rooms can simply install low-noise air conditioners to meet the needs.