The pipeline network is the core channel for transporting refrigerant in the cold storage refrigeration system, and its tightness directly determines the refrigerant retention rate and refrigeration efficiency. If pipeline network leaks are not repaired in a timely manner, although they seem like local pipeline hidden dangers, they will actually cause continuous refrigerant loss, lead to a sharp drop in system cooling capacity, disrupt the balance of the refrigeration cycle, and increase equipment load and operating costs.

          Pipeline network leaks are highly concealed, which easily leads to continuous refrigerant loss and is not easy to detect. Leakage points mostly occur at pipeline interfaces, valves, welds and other parts. After refrigerant leaks, the amount of circulating refrigerant in the system gradually decreases, which cannot meet the heat exchange needs of the evaporator, directly leading to a significant drop in cooling capacity and a sharp reduction in cold storage cooling efficiency.

          Continuous refrigerant loss and sharp drop in cooling capacity will induce multiple hidden dangers. Insufficient cooling capacity will lead to failure to meet the set temperature of the cold storage, affecting the safety of goods storage; to make up for the cooling gap, the system will force the compressor to run overloaded for a long time, accelerating component wear and lubricating oil deterioration; at the same time, refrigerant leakage may also pollute the environment and increase the costs of refrigerant supplement and equipment maintenance.

          Standard operation and maintenance need to strengthen the inspection and repair of pipeline network leaks: establish a regular inspection mechanism, focus on checking pipeline interfaces, valves and other easy-to-leak parts, and timely find and professionally repair leakage points; regularly detect the system refrigerant pressure to judge whether there is hidden leakage; after repair, timely supplement refrigerant to the standard range to ensure the normal operation of the system.

          Timely repair of pipeline network leaks is the key to ensuring refrigerant retention and refrigeration efficiency. Doing a good job in leak inspection and timely repair can avoid continuous refrigerant loss, maintain stable system cooling capacity, extend equipment service life, reduce operating costs, and ensure the continuous and safe operation of the cold storage.