4 Major Phenomena of Out-of-control Industrial Chiller

FR: | Author:DANNICE | Time :2023-03-13 | 350 views: | 分享到:

Cooled chiller accounts for a relatively high proportion of assets in industrial production equipment, and is extremely important industrial equipment. It is also an indispensable skill for equipment managers to safely operate refrigeration equipment. There are also potential safety hazards in the operation of refrigeration equipment. If they are not observed and dealt with in a timely manner, the probability of refrigeration accidents will be virtually increased, which will bring harm to industrial production!

Dannice company analyzes 6 common failures of cooled chiller in industrial applications, summarizes them into emergency safety operation skills of refrigeration equipment, and provides reference for equipment management and maintenance personnel in the industry.

Clogging

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There are usually three forms of plugging, ice plugging, dirty plugging, and oil plugging. It refers to blockage of pipes, holes, valves, special components of the system, etc. The common components of blockage are oil, ice, sundries, etc. If there is water in the system, the icing will cause the orifice of the throttle valve to block. The vacuum of the machicne is not thorough the internal air contains water or filled with refrigerant containing moisture.

The refrigeration oil deterioration causes the oil clogging. The brand of oil does not match the equipment and the dirty clogging is caused by impurities inside the system. So during the normal operation of refrigeration equipment, pay attention to observe the blocking phenomenon, judge the cause and then deal with it.

Abnormal noise

The refrigeration equipment is working normally, and it is normal to have sound. If there are abnormal and irregular noises, special attention must be paid. There have been negligence of administrators, which caused tens of thousands of compressors to burn out bearing bushes due to abnormal noise, making it difficult to repair. The reasons for the abnormal sound of the compressor. looseness of the moving connection components. Corresponding measures can be taken for abnormal noises in different parts. For example, check the compressor and filter, tighten the bolts and replace the corresponding parts.

Overpressure

Overpressure refers to the phenomenon that the refrigeration system container is subjected to excessive pressure, such as ultra-high condensing pressure, increased saturated vapor pressure, refrigerant gas leakage in a closed space, and so on. The parts where overpressure occurs are condensers, evaporators, etc., and the pressure is higher than the specified value due to the incondensable gas inside, too much liquid, and too much lubricating oil.

In warehouses and workshops where refrigerants are stored, if refrigerant leaks and the space is closed, refrigerants will easily accumulate, posing a threat to personal safety, and suffocation and poisoning may occur. As mentioned in the previous example, due to unreasonable operation and maintenance by the maintenance personnel, the accident of mixing the refrigerant with oxygen and causing the overpressure explosion inside the compressor system is the most dangerous and should be avoided.

Overheating

Low temperature is widely used in industry, especially in the fields of low temperature freezing, chemical industry, and new materials. Metals become brittle at low temperature and are prone to rupture, which poses a safety threat to containers and equipment operators. Also, low-temperature refrigerants will freeze, causing irreversible damage to pipes, valves, and containers. In 2020, a company did not add antifreeze in time, resulting in a cooling water freezing accident, freezing and bursting in the pipeline, and damage to the equipment compressor, resulting in considerable losses.

The above are the 4 major safety precautions for cooled chiller compiled by Dannice for you. It should be observed and recorded during equipment operation. In order to avoid major safety production accidents caused by minor faults in refrigeration equipment, avoid delays in production, and endless troubles!