As a kind of high-tech equipment, ultra-low temperature freezing unit is widely used in scientific research, medical treatment, industry and other fields. However, due to the particularity of its operating principle and operating environment, safe operation and management are particularly important. This article will focus on the safe operation and management of ultra-low temperature refrigeration units from four aspects: operating procedures, daily maintenance, exception handling and personnel training.
1. Operating procedures
1.Pre-start inspection: Make sure that there is no debris around the refrigeration unit, good ventilation, and stable electrical connection. Check whether the refrigerant, lubricating oil, etc. are sufficient.
2.Steps: Follow the device manual to start step by step, never skip any steps. Once started, frequent switching on and off should be avoided.
3.Operation monitoring: real-time monitoring of temperature, pressure and other parameters of the refrigeration unit to ensure that it is within the normal range.
4.Shutdown sequence: Gradually turn off the main functions first, then turn off the power to ensure that the system is completely cool.
2. Daily maintenance
1.Cleaning and dust removal: Regularly clean the refrigeration unit to remove dust and debris and keep the heat dissipated well.
2.Check the tightness: pay attention to whether there is leakage of refrigerant, lubricating oil, etc., and ensure that the sealing ring is intact.
3.Record and report: After each maintenance, record the maintenance situation in detail, and report the problem in time.
3. Exception handling
1.Abnormal parameters: If abnormal parameters such as temperature and pressure are found, stop the machine immediately for inspection, find out the cause and solve it.
2.Noise or vibration: When the equipment has abnormal noise or vibration, it should be stopped immediately for inspection to avoid causing greater damage.
3.Emergency handling: In case of electrical failure, fire and other emergencies, it should be dealt with quickly in accordance with the emergency plan to ensure the safety of personnel.
Fourth, personnel training
1.Training content: Operators need to understand the basic principles, operating procedures, and maintenance methods of refrigeration units.
2.Training method: online or offline training can be adopted, combining theoretical learning with practical operation.
3.Assessment and certification: After the training, the operator will be assessed, and the qualified person will be issued an operation certificate.
The safe operation and management of ultra-low temperature refrigeration units is a comprehensive work, which requires us to consider and implement it from multiple dimensions. By formulating strict procedures, strengthening daily maintenance, dealing with abnormal situations in a timely manner, and improving the quality of personnel, we can ensure the safe and stable operation of ultra-low temperature refrigeration units, and provide strong support for scientific research and production in various industries.