消声器使用说明书英文.doc

MM系列小孔消声器MM Series Microporous Mufflers使用说明书OPERATING SPECIFICATION无锡市世一电力机械厂Wuxi Shiyi Electric Power Machinery Factory1、 概述MM系列小孔消声器是原有小孔消声器的升级换代产品，它具有构造简单、体小身轻、安装方便、消声量大、经久耐用等特点。小孔消声器是一种保护环境免受噪声污染的设备，用于治理各类锅炉和压力容器的汽（气）体排放噪声以及冲（吹）洗各种工业管道时产生的噪声。产品标识方法规定如下：MM _ _ 入口介质温度 入口介质标称压力Mpa 消声器标称排放量 t/h 消声器用途代号消声器用途代号：P=过热器排汽R=再热器排汽S=安全阀或动力释放阀排汽F=冲管排汽2、 结构特征与工作原理小孔消声器从我国著名声学专家马大猷院士的小孔喷注噪声理论出发，着眼于减小喷口直径，通过移频以达到降低噪声的目的，因而它的主要结构特征在于它以小孔元件（如消声筒）作为其主要部件，对于控流型消声器再加装扩散器将排放系统的流通量控制到用户要求的设计排量。消声器为全钢结构。MMP型、MMR型、MMS型消声器的消声筒均用不锈钢制作，小孔不会因腐蚀而堵塞。扩散器采用和排汽（气）管道相同的材料和规格，便于现场焊接施工。3、 技术特征31 小孔消声器的消声量小孔消声器的消声量为在相同工况下空管排放噪声级与装设消声器后排放噪声级之差。消声器的消声量302 dB(A)。32 消声器的技术参数消声器技术参数指工作介质的类别、工质排放量（t/h）、工质在阀前的状态参数以及排汽（气）管道的口径和长度（mm）等，它们是设计消声器规格的主要依据。具体参数及尺寸、重量见样本或随机资料。33 消声器的铭牌内容消声器型号；设计排放量（t/h）；阀前压力（Mpa）；阀前温度（）；重量（Kg）；产品编号；制造日期；生产厂家。4、 运输、验收及贮存a. 产品在吊装、吊卸和运输过程中不得损坏消声器的外包装，以防止杂物进入消声器体内或堵塞小孔。b. 消声器验收时根据装箱清单核对消声器规格型号，检查消声器是否完好，技术资料（包括产品合格证、质量证明书、消声器竣工图和使用说明书）是否齐全。c. 消声器验收后若不立即安装仍应包装好贮存，不要使消声筒小孔及接管坡口长时间外露，即使是安装前在现场短时堆放，亦不允许将消声器裸露卧放在有泥砂或其他杂质的地方，以免堵塞小孔。5、 安装a. 消声器安装前核对其型号、规格与设计要求是否一致，并应检查并确保消声器内部无杂物，小孔无堵塞现象。b. 消声器安装前，必须对排汽（气）管系统进行冲（吹）洗，清除管内一切杂物后方能安装。c. 消声器虽属泄压部件，但为保证长期安全运行，仍按压力容器要求进行设计、制造。安装中除消声器连接管和排汽管道的连接需要焊接外，严禁在其他部位焊接任何物体或引弧。在焊接时应采取措施，防止焊渣进入排汽管内。6、 使用、维护a. 消声器每次排放后，打开疏水阀门将消声器及疏水盘活动连接装置内的积水排放干净。b. 运行中应定期检查消声筒小孔有无堵塞现象，一旦发现堵塞应采取措施加以疏通。c. 消声器应列入机组大修的检查或维修项目，重点检查并保证消声筒和扩散管小孔畅通；消声器承载焊缝的完好；消声器与支架以及支承结构相互连接牢固。1、 SummarizationMM Series Microporous mufflers are the new-generation products which obtain promotion of original microporous mufflers. Our products have the following advantages: simple in conformation, small figure and light weight, convenient in installation, large noise reduction capacity, wearing well and so on.Microporous mufflers are used for protecting environment and reducing the noise. With our products, we can handle the noise of gaseous emission from boilers and pressure vessels and the noise from flushing all sorts of industrial pipelines.Product Identification as follows:MM _ _ Number of design Series number of inlet pressureCapacityNumber of series (P.R.S.F)Number of series:P=Superheater & Vent-upR=Reheater &Vent-upS=Safety Valve or Dynamical Relief Valve & Vent-upF=Flushing Pipelines & Vent-up2、 Features of Structure & Principle of OperationMicroporous mufflers are based on which is composed by Academician Madayou who is the famous acoustics expert in China. We put emphasis on decreasing the diameter of the spout and reaching the purpose of reducing noise by frequency shift. So the main structure feature of our products is their essential elements (microporous ones), such as silencing pots. For silencers with dominant charge, we install diffuser to dominate turnover to reach the demand of the users. Our products are all-steel structures.Since the material of silencing pots of MMP, MMR, MMS microporous mufflers is stainless steel, the micropores will not be jammed because of eroding. The material and specification of diffuser is the same as the exhaust pipeline, so its convenient for welding on-the-spot. 3、 Technical Characteristics3.1 The Noise Reduction Of Microporous Mufflers The noise reduction capacity of microporous mufflers is the difference of noise levels on the same conditions which is discharged by empty pipe and the pipe with mufflers. The noise reduction capacity of microporous mufflers 302 dB(A)3.2 Technical Parameters of Microporous MufflersTechnical Parameters: Sort of working medium, Discharge amount of working medium, State parameter of working medium in the front of valve, Caliber and length of discharge pipeline and so on, which are the main basis of designing specification of microporous mufflers. You could refer to stylebook or random data about the specific parameter, size and weight.3.3 The Content Of NameplateThe Model Of Microporous Mufflers;Discharge Amount In Designing (t/h) ;Pressure In The Front Of Valve (Mpa) ;Temperature In The Front Of Valve () ;Weight (Kg) ;Number Of Products;Date Of Production;Manufacturer.4、 Transportation, Check and Accept, ReservationDont damage external packaging of microporous mufflers during loading, unloading and transportation, in case sundries come into the body of microporous mufflers or jam micropores.When microporous mufflers are checked and accepted, verify the specification and model in term of contained loading list, check to find whether microporous mufflers are intact or not and whether the technical data (including certification of inspection, quality certificate, as-built drawing, operating specification) is complete with noting missing or not. If the microporous mufflers are not installed immediately after checking and accepting, they should be reserved well-packaged. Dont bare micropores and chamfer of take-over for a long time. Even if microporous mufflers are piled on-the-spot before installation for a shot time, they should not be piled on the sandy and muddy spot in case of jamming micropores.5、 InstallationCheck model, specification before installation and assure that there are no sundries inside the microporous mufflers and micropores arent jammed.Flush the system of discharge pipelines to clear all the sundries before installation.Although microporous mufflers belong to decompression components, they are designed and manufactured according to request of steel pressure vessel for being in motion safely over a long period of time. Besides welding the joint of connecting pipe and exhaust pipe, arc strike or anything else is forbidden to be welded. Take measure to prevent welding spatter from coming into exhaust pipeline during welding. 6、 Use & MaintenanceOpen the valve of diffuser to exhaust water accumulation in microporous mufflers and connecting device of diffuser after every exhausting.Inspect t