Noise reduction structure of main noise resources of urban indoor substation

Abstract

The invention relates to a noise reduction structure of main noise resources of an urban indoor substation, belonging to the technical field of noise pollution control in environmental engineering. The noise reduction structure is mainly used for reducing the noise resources of the urban indoor substation, including noise radiated by a main transformer and a reactor 1. The noise reduction structure comprises a wall perforated plate resonance sound absorption structure 2, a sound isolation door 3, a ventilating shutter 4, a low-noise axial flow fan 5, an air intake silencer 6 and an air exhaust silencer 7, wherein the wall perforated plate resonance absorption structure 2 is located inside the wall and comprises a perforated gypsum plate and acrylic cotton; the sound isolation door 3 is filled with glass coated intermediate glass cotton fiber, and the gap of a door frame is filled with sealing strips; the ventilating shutter 4 and the low-noise axial flow fan 5 are used for ventilating and dissipating heat to ensure the safe and stable operation of the main transformer and the reactor; the air intake silencer 6 is installed on the outer part of the ventilating shutter 4, the upper part is a lighting sound-isolating window cover, and the lower part is an air flow channel covering the sound absorption material; and the air exhaust silencer 7 is installed outside a ventilating fan hole, and the interior is an air flow channel covering the sound absorption material.

Description

technical field [0001] The invention relates to the technical field of environmental engineering noise pollution prevention and control, in particular to a noise reduction structure for the main noise sources of urban indoor substations—main transformers and reactors. Background technique [0002] Environmental problems are global issues of common concern to mankind, and noise pollution has become one of the primary environmental problems to be overcome in the 21st century. Industrial noise, urban traffic noise and domestic noise constitute the three main sources of environmental noise. Industrial noise bears the brunt of the largest environmental noise pollution, and substation noise is one of the main noise sources in industrial noise. With the rapid development of urban construction, indoor substations continue to increase, and substations inevitably enter densely populated areas. At the same time, some remote substations are also being surrounded by newly built resident...

AI Technical Summary

Problems solved by technology

[0004] At present, the noise control of substations is limited to the local noise reduction control of doors, windows and walls, and most of them copy other noise control engineering schemes without considering the characteristics of substations themselves. Therefore, the noise control measures of urban indoor substations need to be improved urgently

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