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1、摘要噪声污染日益成为影响人们身体健康和生活质量的严重问题,尤其是厂矿企业飞速发展,伴随着大型机器、设备运作的剧增,厂区噪声污染对工厂工人和工厂周边居民正常工作、生活、学习、休息环境的干扰程度和范围也随之加剧。控制噪声成为日益重要的问题。隔声罩是将噪声源置于隔声罩内,隔断其噪声向罩外传播。它既可隔离设备的高噪声,又可以作为高噪声车间的控制室,减少噪声对人体的危害。使用隔声罩是降低各类设备噪声干扰的有效措施,广泛应用于压缩机、鼓风机、电机、电炉、球磨机、粉碎机、冲床、水泵等设备的噪声治理。本文介绍了隔声罩的用途,类型及本设计的隔声罩的特点,阐述了煤气压缩机产生噪声的特点,及隔声罩的隔声原
2、理。该隔声罩应用于大型煤气压缩机上,隔声罩的种类多种多样,采用可拆卸式支撑架,然后在支撑架中嵌插隔声板材。设有进风口,排风口,在进风口处装有D型阻性折板式消声器,在排风口处装有4台离心式风机,用于排风降温。同时隔声罩内装有温度传感器及一氧化碳浓度传感器理论隔声量为20dB,隔声罩的风机与传感器联动,通过PLC控制来实现隔声罩的智能控制。温度或一氧化碳浓度达到或超过设定的临界值时,与传感器连接的PLC控制部分会控制发出指令让风机启动排风,以便使空气温度或一氧化碳浓度降低,当温度或浓度值低于临界值时,风机接到来自于PLC的命令,停止排风。因此该隔声罩是具有智能控制功能。关键词:隔声罩煤气
3、压缩机噪声控制隔声量智能控制PLCAbstractNoisepollutionisincreasinglybecomingaffectpeople'shealthandqualityoflifeoftheseriousproblems,Inparticulartherapiddevelopmentoffactoriesandminesenterprises,accompaniedbyalarge-scalemachinery,equipmentoperationoftherapidincreaseinfactorynoisepollutiononfactoryworkersandfa
4、ctoriesnearbyresidentstowork,live,study,restofthedisturbanceoftheenvironmentandalsowillbecomeworse.Noisecontrolbecomesincreasinglyimportantissue.Acousticenclosureistheequipmentwhichputthesourceofnoiseintoacousticenclosure,cutofftheirnoisetocoverthespread.Itnotonlycanisolatethenoisyofequipment,b
5、utalsoasanoisyworkshopofthecontrolroom,toreducenoiseonthehumanbodyharm.Theuseofacousticenclosuresistoreduceequipmentnoiseandeffectivemeasures,widelyusedinaircompressors,blowers,motors,electricfurnace,ballmill,shredders,presses,pumpsandotherequipmentofthenoiseControl.Inthispaper,weintroducedtheu
6、seofacousticenclosures,andthistypeofacousticenclosuresdesignfeaturesandgascompressoronthecharacteristicsofanoise,thenoiseandacousticenclosuresprinciple.Theacousticenclosureisusedforlargegascompressor,usingremovable,andthenMOUNTINGembeddedintheplateinserted.Intoatuyere,exhaustmouth,intotheoutlet
7、withtheD-resistiveplatediscountmuffler,exhaustinthemouthwithfourcentrifugalfansforventilationcooling.Thevolumeofnoiseis20dB,acousticenclosuresandsensorsforfaninteraction,throughthePLCcontroltoachieveacousticenclosuresofintelligent