标准摘要
[中文适用范围]： 本国际标准规定了便携式和固定式压缩机和真空泵噪声排放的测量、测定和声明方法。 它规定了进行测量的安装、负载和工作条件，并包括噪声发射的测量或测定，表示为： ——规定负载条件下的声功率级， — 规定条件下工作站的发射声压级负载条件。 它适用于 — 各类气体压缩机， — 油润滑空气压缩机， — 喷油空气压缩机， — 注水空气压缩机， — 无油空气压缩机， — 处理危险气体的压缩机（气体压缩机）， — 用于处理氧气的压缩机， — 用于处理乙炔的压缩机， — 高压压缩机 [4 Mpa (40 bar) 以上]， — 用于低入口温度（即低于 0 ℃）的压缩机， — 大型压缩机（输入功率超过 1 000 kW）动力）， — 便携式和撬装式空气压缩机，以及 — ≤ 0.2 MPa（≤ 2 bar）应用中的旋转正排量鼓风机和离心鼓风机和排气机。 它不适用于 — 最大允许工作压力小于 0.5 bar/0.05 MPa 的除乙炔以外的气体压缩机； ——用于制冷系统或热泵的制冷剂压缩机； ——手持式便携式压缩机。 [外文原描述]： ISO 2151:2004 specifies methods for the measurement, determination and declaration of the noise emission from portable and stationary compressors and vacuum pumps. It prescribes the mounting, loading and working conditions under which measurements are to be made, and includes measurement or determination of the noise emission expressed as the sound power level under specified load conditions and the emission sound pressure level at the work station under specified load conditions. It is applicable to compressors for various types of gases, oil-lubricated air compressors, oil-flooded air compressors, water injected air compressors, oil-free air compressors, compressors for handling hazardous gases (gas compressors), compressors for handling oxygen, compressors for handling acetylene, high pressure compressors (over 40 bar/4 MPa), compressors for application at low inlet temperatures (i.e. below 0 °C), large compressors (over 1 000 kW input power), portable and skid-mounted air compressors, and rotary positive displacement blowers and centrifugal blowers and exhausters in applications of 2 bar/0,2 MPa or less. It is not applicable to compressors for gases other than acetylene having a maximum allowable working pressure of less than 0,5 bar/0,05 MPa, refrigerant compressors used in refrigerating systems or heat pumps, nor to hand-held portable compressors.
英文名称Acoustics — Noise test code for compressors and vacuum pumps — Engineering method (Grade 2)