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BS EN 60534-8-2-1993 工业过程控制阀.噪声的考虑.流动液流经控制阀产生噪声的实验室测量

BS EN 60534-8-2-1993 工业过程控制阀.噪声的考虑.流动液流经控制阀产生噪声的实验室测量

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【英文标准名称】: Industrial-process control valves - Noise considerations - Laboratory measurement of noise generated by hydrodynamic flow through control valves
【原文标准名称】: 工业过程控制阀.噪声的考虑.流动液流经控制阀产生噪声的实验室测量
【标准号】: BS EN 60534-8-2-1993
【标准状态】: 现行
【国别】: 英国
【发布日期】: 1991-10-31
【实施或试行日期】: 1991-10-31
【发布单位】: 英国标准学会(GB-BSI)
【起草单位】: BSI
【标准类型】: ()
【标准水平】: ()
【中文主题词】: 声学测量;空气噪声;控制阀;校正装置;定义;方向控制阀;电气工程;流体工程;水力的;流体动力学(水);实验室试验;液体流量;测量;空气噪声测量;噪声排放;噪声测量;管道;过程自动化;过程控制;过程测量和控制技术;声压级;测试;阀门
【英文主题词】: Acoustic measurement;Airborne noise;Control valves;Correcting units;Definition;Definitions;Direction-control valves;Electrical engineering;Fluid engineering;Hydrodynamic;Hydrodynamics;Laboratory testing;Laboratory tests;Liquid flow;Measurement;Measurement of airborne noise;Noise emissions;Noise measurements;Pipelines;Process automation;Process control;Process measuring and control technology;Sound pressure level;Testing;Valves
【摘要】: This section of IEC 534-8 includes the method for measuring the sound pressure level dueto liquid flow through a control valve and the method 'for determining the characteristicincrease of noise due to the onset of cavitation. It also defines the equlpment, methodsand procedures for the laboratory measurement of the airborne sound needed todetermine these characteristics. The airborne sound includes that radiated from thecontrol valve and the associated piping configuration, íncluding fixed flow restrictionsthrough which the test fluid (water) is passing (see note i).The primary purpose of this section of IEC 534-8 is to provide a method for determiningthe characteristic increase of noise due to cavitation, including a method for measuringnoise generated in control valves by hydrodynamic flow. Methods of measuring the noiseradiated from the valve and associated test piping allows a comparison of variousmeasured data which is beneficial to the user and the manufacturer. The noise to bemeasured takes into account the noise radiated from the control valve itself and the noisegenerated by the valve but radiated from the associated piping system. The test data areexpressed as sound pressure levels of the valve under consideration using water as thetest fluid. Determination of sound power levels is beyond the scope of this section ofIEC 534-8. The nolse characteristics are useful for the following reasons:a) to determine the characteristic pressure ratio factor xFz of a control valve;b) to predict valve noise for given process conditions;c) to compare the performance of different valves;d) to plan measures for increasing senrice life and noise abatement.
【中国标准分类号】: N16
【国际标准分类号】: 23_060_40
【页数】: 28P.;A4
【正文语种】: 英语

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