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指出了现行暖通空调专业风机噪声声功率级计算公式和相关数据表中存在的错误,解释了比声功率级和比A声功率级的差异。建议在目前的条件下,空调消声计算中所使用的声功率级宜采用空调风机制造厂提供的实测值,空调机组制造厂如若能够提供空调机组整机的出口、进口和机外声功率级的混响室实验值,将使得空调消声计算结果更加符合实际。
The calculation formula of the sound power level of the current HVAC professional fan noise and the errors in the related data table are pointed out, and the differences between the sound power level and the sound power level of the A sound power are explained. It is suggested that under the current conditions, the sound power level used in the air-conditioning muffler calculation should adopt the measured value provided by the air-conditioner fan manufacturer. If the air-conditioning unit manufacturer can provide the export, import and outside sound power level The reverberation chamber experimental value, will make the air-conditioning muffler calculation results more in line with the actual.