5.堵塞堵塞是制冷系统又一常见故障,往往发生在储液罐和膨胀阀处,但也有发生在管路上及蒸发箱低压出口处。堵塞反映在岐管表上低压侧压力大大低于正常压力,多数表现 5. Blockage Blockage is another common failure of the refrigeration system, often occurs in the tank and the expansion valve, but also occurred in the pipeline and low-pressure evaporator outlet. Blockage reflected in the manifold pressure on the low side of the table is much lower than normal pressure, the majority of performance