It is not the noise A sound level value stipulated in our regulations or what we think that really affects the owner's home, but the low-frequency vibration during elevator startup, operation and braking, and these low-frequency vibrations are the most harmful to the human body! The country has not yet formulated standards for low-frequency vibration and noise. From another perspective, the current general phenomenon of elevator noise is also an inevitable development of elevators and real estate in recent years! Because elevators and real estate have a history of 100 years abroad, and China has to digest all the technology and so on in the past nearly ten years, lacking the accumulation of experience.
An environmentally friendly noise reduction solution specifically designed for elevators based on the principle of elevator acoustic resonance. Decrease the vibration and running noise of the elevator in the special sound insulation layer of the elevator layer by layer, which can be thoroughly reduced and digested, so as to reduce the sound source of the noise, realize the noise reduction of the elevator, and solve the impact of elevator noise on the owner. The measures are as follows:
1 Noise reduction in elevator shaft
A. Elevator shaft construction holes and gaps are filled with HOREQ-D5 or cement mortar, and then filled with sealing paste or cement mortar;
B. Polymer mortar sticks to 50mm thick HOREQ-D2 sound-absorbing cotton board.
C. 8 card fixed nail fixed, the middle distance is 600mm;
2 Traction machine damping machine room noise reduction
A. Install a mud damper on the lower steel beam of the traction machine
B. Noise reduction in the computer room
