The Characteristic Analysis And Management Research Of HVAC Equipment Noise

With the increasing demand for quality of life,more and more HVAC system wereused in building,hvac system provides people with comfortable artificial environment,but its noise also affects people’s work and life.According to equipment were installedin different position, the noise of the equipment influence people directly orindirectly.This article tested the noise of air conditioning equipment in some representative ofthe buildings on the way of sampling.We summarized the different air conditioningequipment noise spectrum characteristics,according to each center frequency linearSPL of the testing air conditioning equipment octave,and analyzed the causes of noiseon the basis of spectrum characteristics.Also we adopted A scale and noise curve NRto evaluate indoor noise which be tested.The result shows that in different operationtime background noise is different,so the equipment of the noise influence to theperson’s also different. In the big room,the influence of air conditioning equipment topeople who are in disparate place is different.This article analyzed the masking effect of environmental noise,and summarizedthat equipment effects on people are not the same in different environmental noise.This theory can be applied to the judgment of the noise control and the selection of airconditioning equipment,so we should take the environmental noice into account whenanalyse the air conditioning equipment noise.This article in view of the air conditioning equipment voice principle puts forwardall kinds noise control method.The method that are usually used to control noises inthe air conditioner systems are:noise elimination，sound absorption,sound insulationand vibration insulation.To different equipment,we use the combination of these noisecontrol.This article put forward that we should deal with problems case by case,choose reasonable management method according to the specific reason generated bythe air conditioning equipment, and should not copy of general administration method.Only in this way,can we reach the ideal effect the same as the economic andreasonable.