日用电器
日用電器
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ELECTRICAL APPLIANCES
2015年
7期
40-43
,共4页
窗机%系统噪声%压力脉动
窗機%繫統譟聲%壓力脈動
창궤%계통조성%압력맥동
window air conditioner%refrigerant system noise%pressure fluctuation
现在大多数空调使用的是转子式压缩机,由于其吸排气是周期性的,导致管道内指定点的气流压力、速度呈周期性的变化,这种脉动的气流压力作用于制冷系统,在管道的转弯处或者截面发生变化处形成激振力.这些力的大小、方向以及相位上各不相同,激发管道的受迫振动,引起管道疲劳和系统噪音.
現在大多數空調使用的是轉子式壓縮機,由于其吸排氣是週期性的,導緻管道內指定點的氣流壓力、速度呈週期性的變化,這種脈動的氣流壓力作用于製冷繫統,在管道的轉彎處或者截麵髮生變化處形成激振力.這些力的大小、方嚮以及相位上各不相同,激髮管道的受迫振動,引起管道疲勞和繫統譟音.
현재대다수공조사용적시전자식압축궤,유우기흡배기시주기성적,도치관도내지정점적기류압력、속도정주기성적변화,저충맥동적기류압력작용우제랭계통,재관도적전만처혹자절면발생변화처형성격진력.저사력적대소、방향이급상위상각불상동,격발관도적수박진동,인기관도피로화계통조음.
Most air conditioner equipped with rotational compressor, owing to its seasonal inspiration and exhaust. It results in the periodic changes of current pressure and velocity on some specific locations. This pulsant current pres-sure acts on the refrigerant system, and it causes inspirited force on bend or variety section of pipe. The magnitude, the direction, and the phase of the force are all different. It leads to weariness of tube and noise of the refrigerant system.
