医药冷库制冷系统漏气，由于机组老化，加上维修操作不当，会使制冷系统的接口处如膨胀阀、过滤器、高压排气阀及低压吸气阀漏气。此时应先收集制冷剂，然后更换漏气的部件，接着打压捡漏、抽空、充气试机。如果遇到压缩机阀板上吸排气阀片漏气、轴封漏气时，则应更换相应的部件。

Refrigeration system leaks, due to the aging unit, plus improper maintenance operations, will make the refrigeration system at the interface, such as expansion valve, filter, high-pressure exhaust valve and low-pressure suction valve leakage. You should first collect the refrigerant, then replace the flat parts, then, to suppress the Jianlou and inflatable test machine. If the compressor valve plate on the suction and exhaust valve leakage, seal leakage, the corresponding parts should be replaced.

冷库是通过机械设备等方式实现恒定需求库温的库房环境，利于易腐败食品等在限度内极大地保持新鲜度和延长新鲜期。

Cold storage is to achieve constant temperature warehouse demand environment by machinery and equipment etc., to keep perishable food greatly within limits of freshness and prolong fresh period.

那在冷库使用过程中，会出现冷库制冷不好或不制冷的情况，造成库内温度波动，不利于产品保鲜保存。

In the use of cold storage, cold storage can not be good or not refrigeration, resulting in temperature fluctuations in the library, is not conducive to product preservation and preservation.

一旦出现制冷故障，需及时排查原因并解决。冷库不制冷的主要原因有缺气、漏气、堵塞及电动机工作不正常等，这些故障可归纳为制冷系统及控制电路两个方面。

In case of refrigeration failure, the cause should be investigated and solved in time. The main causes of cold storage are the lack of gas, the leakage of gas, the obstruction of the motor and the abnormal operation of the motor. These faults can be summed up in two aspects: the refrigeration system and the control circuit.

1、冷库缺气。由于冷库年久失修，加上制冷剂的自然消耗和渗漏，使得冷库制冷不好，表现为蒸发器前段铜管结霜、后段铜管基本无霜，此时只需按照前面的工艺给压缩机充注制冷剂即可。

1, cold storage gas shortage. Because of the cold storage of disrepair, plus the natural refrigerant consumption and leakage, the cold storage refrigeration is not good for anterior and posterior tube evaporator frosting tube no cream, then just to the compressor refrigerant can according to the preceding process.

2、制冷系统堵塞。冷库运行中，干燥过滤器和热力膨胀阀最容易堵塞，堵塞的原因商脏堵、泊堵和冰堵。当冷库使用年限较长时，冷冻油变质、压缩机活塞磨损产生的金属粉末及管道内的氧化物流经过滤器时容易把滤网堵塞，将膨胀阀进口处的滤网、出口处的阀孔堵塞，使冷库不制冷。

2, the refrigeration system blocked. In the cold storage operation, the drying filter and the thermal expansion valve are most likely to clog up. The blockage is caused by dirty plug, plug and ice jam. When the refrigerator used for a long time, the oxidation of metal powder and oil logistics pipeline deterioration, compressor piston wear resulting in the filter is easy to plug the filter, an expansion valve hole filter, valve inlet outlet plug, the cold is not cooling.

3、冷凝器过脏。出于冷库常常工作在环境恶劣的厨房中，厨房内的油烟和灰尘会被吸附在冷凝器的盘管和翅片上，堵塞了通风空间，严重影响了冷凝器的散热，使排气压力升高、制冷速度变慢，解决的办法是用钢刷和洗衣粉彻底清洗翅片上的灰尘。

3 、 the condenser is dirty. For cold storage often work in the harsh environment of the kitchen, in the kitchen fume and dust will be adsorbed on the condenser coil and fins, blocking the ventilation space, seriously affected the condenser heat, the exhaust pressure is increased and the cooling speed slow, the solution is to thoroughly clean the dust on the steel brush and fin washing powder.

控制电路故障的检修使用冷库时，如果遇到压缩机不启动或启动频繁，说明电动机、接触器、热继电器等出了故障。需及时咨询联系冷库工程商专业售后，尽快处理。

If the compressor doesn't start or start frequently, the motor, contactor and thermal relay will be out of order. Timely consultation with cold storage contractors, professional after-sale, as soon as possible to deal with.

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