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    • 4. 发明公开
    • 흠음장치
    • 用于降低空中排气噪声的装置
    • KR1020020010183A
    • 2002-02-04
    • KR1020000043464
    • 2000-07-27
    • 한국전력공사
    • 윤상만김기홍이정한이준신안경덕
    • F24F13/24F01N1/00F02M35/12F04B39/00
    • PURPOSE: A noise reduction apparatus of an air duct is provided to shut off noise efficiently without disturbing flow of air for cooling units or adjusting the temperature, and to reduce noise of units corresponding to specific frequency by installing a sound absorbing unit in the air duct for resonating. CONSTITUTION: A noise reducing device of an air duct is composed of a collecting part(21) exposed in a box type resonant tube(10) to form a resonant chamber(11), and a guide pipe(20) resonating noise by guiding noise from the collecting part to the resonant chamber and extended in the resonant chamber to reduce noise. The noise reducing device is installed in the air duct of an apparatus having noise concentrated on the specific frequency such as a transformer or a pumps, and the noise of the specific frequency is concentrated on the collecting part and moved in the resonant chamber through the guide pipe. Noise is expanded in the resonant chamber, and reduced with colliding into the wall of the resonant chamber. Noise is shut off without disturbing airflow by arranging sound absorbing units corresponding to each frequency parallel or perpendicularly to flow of fluid.
    • 目的:提供一种风道的降噪装置,可有效地切断噪声,而不会干扰冷却单元的空气流动或调节温度,并通过在吸气管中安装吸音单元来减少对应于特定频率的单元的噪音 为了共鸣。 构成:风道的降噪装置由暴露在盒式谐振管(10)中的收集部(21)构成,形成共振室(11),导管(20)通过引导噪声共振噪声 从收集部分到谐振室,并在谐振室中延伸以减少噪声。 降噪装置安装在具有集中在特定频率上的噪声的装置的风道中,例如变压器或泵,并且特定频率的噪声集中在收集部分上,并通过导向件在谐振室中移动 管。 噪声在谐振室中膨胀,并且随着碰撞到谐振室的壁而减小。 通过将与每个频率相对应的吸声单元平行或垂直于流体流动来隔离噪声而不干扰气流。
    • 6. 发明公开
    • 흡음장치
    • 声音吸收装置
    • KR1020010091133A
    • 2001-10-23
    • KR1020000012502
    • 2000-03-13
    • 한국전력공사한국중부발전(주)한국수력원자력 주식회사
    • 이준신김태룡이선기손석만안경덕
    • E04B1/84
    • G10K11/172
    • PURPOSE: A sound-absorbing device is provided to absorb and reduce the noise over all frequency bands using a resonance sound-absorbing method and a vanishing sound-absorbing method. CONSTITUTION: A sound-absorbing device for absorbing and reducing the noise occurring from equipment or mechanism comprises: a main body(10) provided with a partition plate(12) for forming an expansion room(14) on the inward lower part; a resonance sound-absorbing pipe(16) installed to the inward partition plate of the main body and equipped with a collecting unit(18) exposed to the outside and an expanding unit(20) extended to the inside of the expansion room to lean the collected noise from the collecting unit to the expansion room; and a vanishing sound-absorbing plate(22) installed around the collecting unit of the sound-absorbing pipe to form a sound-absorbing air room(24) in an interval with the partition plate.
    • 目的:提供一种吸声装置,用共振吸音法和消声吸音法吸收和减少所有频段的噪音。 构成:用于吸收和减少从设备或机构发出的噪音的吸声装置包括:主体(10),设有分隔板(12),用于在内侧下部形成膨胀室(14); 一个安装在主体向内分隔板上并具有暴露于外部的收集单元(18)的共振吸声管(16)和一个延伸到膨胀室内部的膨胀单元(20) 从收集单元收集噪声到扩展室; 以及安装在吸音管的收集单元周围的消音吸收板(22),以形成与隔板间隔的吸音空气室(24)。