在空调机组检修全分解的情况下 ,需要配制排气管和吸气管。为了提高机组性能 ,减少制冷剂流阻 ,应当尽量减少接头 ,弯曲圆滑平顺 ,最好用整根管子弯制成形。铁道车辆空调机组连接管路一般采用紫铜管 ,以热弯成形 ,为了清除加热后形成的氧化层和管内污物 ,需用棉纱反复擦除。因 In the case of complete decomposition of the air conditioning unit maintenance, the exhaust pipe and suction pipe need to be prepared. In order to improve the performance of the unit and reduce the flow resistance of the refrigerant, joints should be reduced as much as possible, and the bends should be smooth and smooth. It is best to bend the whole pipe and shape it. Generally, copper pipes are used for connecting the pipelines of air-conditioning units of railway vehicles. They are formed by hot bending. In order to remove the oxide layer formed during heating and the dirt inside the pipes, cotton yarns are repeatedly wiped. because