毕业课题论文煤矿用排水设备选型矿用风机选型,以附风机扩散器出口噪声综合治理.docVIP

摘要 本次论文设计是基于煤矿流体机械选型设计，完成煤矿主排水设备水泵的型及设计，通风机选型与设计和4-72-11No.20B离心风机房的降噪设计三大任务旨在提高设备利用效率，降低风机房的噪声，实现最大经济效益。 本文根据安全和工作能力的要求，选取相应的水泵，离心风机以及对应的电动机。并且根据煤矿需要，计算年耗电量，进行基本的生产成本算。降噪设计通过对噪声原理设计计算，设计选择合适的消声器，对风机出进行合理的设计，安装一定的扩散型消声器，同时解决风机出口消声器的气流再生噪声及高频失效问题。 本文主要是煤矿用排水设备的选型、矿用风机的选型，以及风机扩散器出口噪声综合治理。通过对以上设备的合理选型及设计，使工人的工作条件得到一定的改善，实现最大的经济效益。 关键词：水泵；通风机；4-72No.20B离心风机ABSTRACT This design is base on the coal mine fluid machinery chooses type and design,to complet three main task :coal-master catchment equipment chosen design, ventilator bloser chosen design and 4-72-11No.20B centrifugal fan vibration rdduction design. The last purpose is to improve the facility efficiency,reduce centrifugal fan vibration ,so we can carry out the biggest economic benefit. In this papper,according to the requst of the safty and the working ability ,we choose the corresponding water pump ,centrifugal fan and the necessary electromotor.What’s more,based on the requst of the coal-mine,calculate the whole year of electricity consumption ,and finish the basic production cost accounting.Therefore, the windward engine room carries on the reasonable design, the arrangement certain amount soundproofing gate, the soundproofing window, the wind engine room arranges the sound absorption body the noise reduction dirt to dye; Meanwhile carries on the vibration isolation place principle to the air blower electrical machinery two main noise sources! This article is mainly coal pump equipment selection ，the coal mine with the host fan pass air blower equipment shaping, the wind engine rooms sound insulation, the sound absorption as well as the air blower and electric motors vibration isolation place principle.So we can carry out the biggest economic benefit. Keywords: Pump；Fan；4-72-11No.20BCentrifugal fan；Noise；Fan room； 目录 摘要 I ABSTRACT II 1 绪论 1 1.1国内外通风机的研究现状 1 1.1.1中国通风机的发展现状 1 1.1.2国外通风机的发展现状 2 1.1.3国内外通风机的发展比较 2 1.1.4离心风机的噪声控制 3 1.2离心风机行业未来发展趋势 4 1.3本课题的研究目的和意义 4 2 水泵设备选型与设计 5 2.1煤矿对排水设备的要求 5 2.2确定泵的型号、台数 6