Sensors are the "sensory organs" of the cold storage refrigeration system, mainly responsible for collecting key operating data such as temperature and pressure, providing accurate basis for system regulation. Their sensitivity directly determines the stability of system operation. Sensor aging and failure, which may seem like mere wear and tear of detection components, will actually lead to errors in temperature and pressure data detection, mislead system regulation, and埋下 hidden dangers of equipment failure and operation.

          The causes of sensor aging and failure are closely related to long-term operating conditions, which are prone to causing detection data distortion. During long-term use, component wear, environmental moisture erosion, and dust adhesion will lead to sensor aging and decreased sensitivity; circuit faults and abnormal signal transmission will cause sensor failure, making it impossible to collect data normally, and ultimately leading to deviations between detection results and actual operating conditions, misleading the output of control commands.

          Errors in temperature and pressure data detection will trigger a series of chain problems. Incorrect data will lead to inaccurate system regulation, resulting in abnormal refrigerant flow, excessively high discharge temperature, or pressure imbalance; further accelerating the wear of components such as compressors and throttle valves, reducing refrigeration efficiency and increasing energy consumption; in severe cases, it will cause equipment overload and shutdown, interrupt the refrigeration cycle, and affect the safety of goods storage.

          Standard operation and maintenance require proper protection and detection of sensors: regularly inspect the working condition of sensors, timely clean surface dust and moisture to avoid environmental factors accelerating aging; regularly calibrate sensor accuracy and check for signal transmission faults; when abnormal detection data is found, timely replace aging and failed sensors to ensure accurate data collection.

          The accurate operation of sensors is a prerequisite for scientific system regulation. Doing a good job in daily protection, calibration and replacement can avoid temperature and pressure detection errors, ensure accurate system regulation, maintain refrigeration efficiency, extend equipment service life, reduce fault risks, and protect the stable operation of the cold storage.