The invention discloses a noise reduction method for an air conditioner of a high-speed motor train unit, and belongs to the technical field of air conditioning systems of railway vehicles, the noise reduction method comprises the following steps: a, judging whether a high-pressure pressure sensor is normal or not, if so, switching high-speed and low-speed operation of a double-speed condensation fan according to the condensation temperature of the air conditioning system, and if not, executing a step b; and b, high-speed and low-speed operation of the double-speed condensation fan is switched according to the vehicle speed and the fresh air temperature. By the adoption of the method, the rotating speed of the condensate fan at the low-speed gear is far lower than that at the high-speed gear, air conditioner noise can be effectively reduced, overall noise and external noise of an air conditioner unit can be reduced by about 7.7 decibels, noise of a passing table in a vehicle can be reduced by 8.3 decibels, noise of the air conditioner unit is remarkably reduced, and the service life of the air conditioner unit is prolonged. And the riding comfort of passengers on the platform and in the bus is greatly improved.

    本发明公开了一种高速动车组空调的降噪方法,属于轨道车辆空调系统技术领域,所述降噪方法包括如下步骤:a.判断高压压力传感器是否正常,如果是则根据空调系统的冷凝温度切换双速冷凝风机的高低速运行,否则执行步骤b;b.根据车速和新风温度切换双速冷凝风机的高低速运行。采用本发明的方法,冷凝风机低速档位下的转速远低于高速档位下的转速,可有效降低空调噪声,可降低空调机组整机噪声和外部噪声约7.7分贝,可降低车辆内部通过台处噪声8.3分贝,空调机组的噪声显著降低,极大提高了站台和车内乘客的乘车舒适性。


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    Titel :

    Noise reduction method for air conditioner of high-speed motor train unit


    Weitere Titelangaben:

    一种高速动车组空调的降噪方法


    Beteiligte:
    WANG JINLIN (Autor:in) / FENG XUWEI (Autor:in) / REN YANJING (Autor:in) / PENG YULONG (Autor:in) / JIANG YUNCHENG (Autor:in)

    Erscheinungsdatum :

    2024-05-14


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES



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