(1) Sound insulation design of generator room

Sound insulation wall: The generator room is closed with a brick wall with a thickness of 240 mm Except for the necessary observation window of the internal wall connected with the observation room, all the windows are removed and all the holes are tightly sealed. The sound insulation capacity of brick walls should be above 40dB(a).

Sound insulation door, in order to ensure that the noise of the computer room will not spread to the outside of the passage, a sound insulation door should be set at the position of the passage. The door body adopts double-layer steel plate composite structure, filled with high-quality sound-absorbing rock wool, and the door frame is wrapped with felt at the gap of the door, which plays an effective sealing role. When pipes and cables pass through walls, they should be filled with ultra-fine glass wool and soft-contacted to prevent the spread of solid noise waves.

(2) Sound absorption design of generator room: sound absorption ceiling, special sound absorption keel and 50 mm thick high-quality sound absorption cotton are used as sound absorption materials. Aluminum button ceil with perforation rate over 20% is use as sound absorption material. Wall sound absorption, in order to prevent sound from penetrating the wall and spreading to the outside world, it is necessary to install a sound absorber on the wall, which is a sound-absorbing cotton with a thickness of 50 mm, and the perforated aluminum buckle on the outer wall is used as the wall sound-absorbing material.

(3) Noise elimination design of generator room

Install a secondary muffler in the exhaust pipe of the generator. Generator tail gas is buffered by stainless steel corrugated expansion joint and discharged by muffler. The generator exhaust pipe and muffler are wrapped with 25 mm thick glass wool for insulation and decorated with aluminum platinum paper.

(4) Air intake and exhaust.

After the sound insulation treatment of the computer room, the ventilation and heat dissipation of the computer room should be solved. The air inlet should be set in the same straight line with the generator set and the air outlet. The air inlet shall be equipped with a resistor muffler. Because the pressure loss of the air inlet is also within the allowable range, the air flow in and out of the machine room can be naturally balanced, and the ventilation and heat dissipation effect is obvious.

(5) Noise reduction and shock absorption design of generator room.

There is a damping system in the unit, which can effectively reduce the transmission of vibration. In addition, a spring damper is placed at the contact position between the unit and the ground to minimize the mechanical vibration of the unit.

Finally, for the noise control of generator room in special environment, it is necessary to conduct on-site investigation and accurately analyze and refine the data; Only by using high-performance noise reduction products and equipment can the most reasonable sound insulation and noise reduction scheme be formulated for the computer room.