The cold storage room one-way valve caused the refrigerator accident, which has something to do with the compressor. All the industrial ice making machine cold storage refrigeration equipment used in the production have been contacted. These accidents caused the compressor piston to be damaged and the connecting rod to break, which was extremely serious.

What is even more uncomfortable is that the same problem occurred again after the compressor was repaired and operated for 2 weeks after being repaired by a maintenance worker! The piston and connecting rod of the other nose were also interrupted!

This is a vegetable cold storage room that uses a parallel compressor system. The reason for the damage of the internal components of the compressor may be the water in the compressor, the lack of oil, and the mixing of debris. However, during the first inspection by maintenance workers, it was found that the separation effect of the oil separator was poor, which caused a large amount of lubricating oil in the system to fail to return to the oil storage tank, resulting in a shortage of oil, which in turn caused oil shortage in the machine head, dry grinding of parts, and broken pistons.

After replacing the oil separator, the oil supply of the oil storage tank and the machine head improved, and normal operation was temporarily restored, but only temporarily! !

During the first inspection and maintenance, the maintenance worker only changed the oil and did not thoroughly check the oil delivery system, which caused another accident. The source of these two accidents turned out to be that the one-way valve of the oil tank entered the debris, which caused the oil supply pressure to drop, which could not meet the oil pressure of the machine head.

In the first overhaul, because the oil separator has been used for a long time, the head of the accident was attributed to the failure of the oil, and the entire oil supply system was not thoroughly inspected. After the oil separator was normal, the oil supply was temporarily normal. , And after running for a period of time, there was an accident that broke the piston again.

Due to the carelessness of the maintenance workers, the same accident occurred twice, which is really uncomfortable. Damage to the compressor means tens of thousands of yuan in maintenance costs. Especially for the person in charge of the workshop, it is too late to regret it.

So looking back on this chiller accident, what safety enlightenment can it bring us?

1. Operators of refrigeration equipment in the workshop must regularly check the conditions of the equipment, especially the high and low pressure of the pipeline, and the oil level. They may exceed the limit or even explode or damage the equipment due to physical reasons.

2. The refrigerating machine oil needs to be changed regularly, and to ensure high-quality and good operation.

3. Periodically inspect the dryer, oil separator, pipeline valve, etc. of the unit to ensure compliance with production regulations.

4. Strengthen the safety training for the operating staff, whether it is production or maintenance workers, safety training is essential for this.

5. Try to use the maintenance channels provided by the manufacturer. Due to the uneven technical participation of maintenance workers, secondary accidents may occur due to lack of technology.

You may not imagine that a small one-way valve can also cause the cold storage compressor to be paralyzed twice in a row, which will stop normal production and cause immeasurable losses to the enterprise. Therefore, production must be safe and equipment used reasonably.