Noise control methods for waste heat boilers in target power plants under construction or pre-construction

Abstract

The invention discloses a noise control method of a built or prebuilt target power plant afterheat boiler. The noise control method comprises the following steps: actual noise parameters of a built power plant under the condition of not performing the noise treatment are actually measured, a reference radiation sound intensity measurement value of a typical part is obtained, and a reference wall sound reduction index and a reference sound transmission loss are calculated; a model of a target power plant is built, and a target wall sound reduction index and a reference sound transmission loss are calculated; and a radiation sound intensity predicted value of the typical part of the target power plant is obtained according to the numerical values, contributions of sound sources in all selected positions to a whole target radiation sound field are analyzed, positions required to be provided with silencers and needed noise reduction indexes are obtained, and corresponding silencing equipment is designed. The method obtains the setting positions and the noise reduction indexes of the silencing equipment according to the conditions of the built power plant before the afterheat boiler is not built or dose not finish the establishment, and directly installs the silencing equipment in building to reduce the difficulty.

Description

technical field [0001] The invention relates to the technical field of power plants, in particular to a noise control method for waste heat boilers of target power plants under construction or in advance. Background technique [0002] Power plants are usually equipped with factory buildings, waste heat boilers, gas turbines, generators, etc. in the factory buildings. When the noise is transmitted to the waste heat boilers, since the waste heat boilers are located outdoors, the noise will have a great impact on the environment of nearby residents. Therefore, laws and regulations are There are relevant regulations on noise control in power plants. [0003] At present, there are two main ways to control the noise of waste heat boilers in power plants: [0004] 1. Add a muffler at the main position of the sound source of the power plant; [0005] 2. Add sound insulation materials to the outer wall of the power plant. [0006] However, there are corresponding technical problem...

AI Technical Summary

Problems solved by technology

[0011] Adequate installation of sound-insulating materials requires high cost; moreover, even if sound-insulating materials with good sound-insulating effect are installed on the exterior wall, the sound-absorbing effect is not ideal due to the multi-directional diffusion of sound

In particular, with the country's increasingly stringent regulations on noise control, this solution cannot meet the requirements

Images