Efficient noise reduction device

The utility model discloses an efficient noise reduction device, which belongs to the technical field of environmental protection facilities and comprises a noise reduction box, a step is arranged on the upper portion of the noise reduction box, a noise reduction cover matched with the step is arran...

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Bibliographische Detailangaben
Hauptverfasser:	YAN CHUNYANG, ZHANG YAN, LIANG DATAO, LI YANG, WU ZHONGWEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR BLASTING COLD ROOMS COMBINED HEATING AND REFRIGERATION SYSTEMS COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEAT PUMP SYSTEMS HEATING ICE-BOXES LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS REFRIGERATION OR COOLING REFRIGERATORS SHOCK-ABSORBERS SOUND-PRODUCING DEVICES SPRINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses an efficient noise reduction device, which belongs to the technical field of environmental protection facilities and comprises a noise reduction box, a step is arranged on the upper portion of the noise reduction box, a noise reduction cover matched with the step is arranged above the noise reduction box, a damping storage box is arranged in the noise reduction box, and a cooling box is arranged on the right side in the damping storage box. The noise reduction box and the noise reduction cover are each of a four-layer structure, each four-layer structure comprises an inner retaining plate arranged on the innermost side, a noise reduction plate is arranged outside the inner retaining plate, a plurality of vacuum cavities are formed in the noise reduction plate, noise reduction cotton is arranged outside the noise reduction plate, and an outer retaining plate is arranged outside the noise reduction cotton. The four-layer sound insulation device composed of two parts is adopted, on on