In the pharmaceutical industry production process, the daily maintenance of chillers needs to balance stability and standardization. This article will analyze the daily maintenance knowledge of industrial chillers in the pharmaceutical industry from four key dimensions: basic inspection, core component maintenance, system cleaning, and operating environment control.

1、 Regular inspection of basic operating parameters

The primary task of daily maintenance is to regularly check the core operating parameters of the chiller, promptly detect parameter deviations, and handle them. Pay attention to the pressure and temperature changes of the refrigeration system, including the inlet and outlet temperatures and pressures of the evaporator and condenser, to ensure that they are within the normal operating range of the equipment; Simultaneously check the liquid levels of cooling water and chilled water to avoid a decrease in heat transfer efficiency or equipment damage caused by insufficient liquid levels. In addition, pay attention to the sound and vibration of the equipment during operation. If there is abnormal noise or severe vibration, stop the machine in time for troubleshooting to prevent the fault from expanding. Parameter inspection should establish a record ledger to facilitate tracking of changes in operating status and provide a basis for subsequent maintenance.

2、 Targeted maintenance of core components

The stable operation of core components is the key to the effectiveness of chillers, and targeted maintenance should be carried out in conjunction with the operational characteristics of the pharmaceutical industry. Regularly check the condition and oil level of the lubricating oil. If discoloration, deterioration, or impurities are found in the lubricating oil, it should be replaced in a timely manner. At the same time, check the sealing condition of the compressor to avoid refrigerant leakage affecting the refrigeration effect; The condenser and evaporator are the core components of heat exchange, and it is necessary to regularly clean the surface dust and dirt to prevent a decrease in heat exchange efficiency. Especially in pharmaceutical production environments, it is necessary to avoid the adhesion of dust and residual chemicals that may cause component corrosion; Control components such as throttle valves and solenoid valves need to be regularly checked for flexibility to prevent abnormal refrigerant flow control caused by jamming or blockage. In addition, monitoring components such as temperature sensors and pressure switches also need to be calibrated regularly to ensure accurate parameter sensing.

3、 System Cleaning and Media Management

The pharmaceutical industry has high requirements for the cleanliness of the production environment, and the cleanliness and medium management of the chiller system are crucial. On the one hand, it is necessary to regularly flush the cooling water and chilled water systems to remove scale and impurities from the pipelines, avoid pipeline blockage or corrosion, and replace or supplement water treatment agents according to the water quality to maintain water quality stability; On the other hand, regularly clean the equipment filters and screens to prevent impurities from entering the system and damaging components. For refrigerant systems, it is necessary to regularly check the sealing. If leakage traces are found, they should be promptly located, repaired, and replenished with refrigerant. When replenishing, it is necessary to ensure that the purity of the refrigerant meets the requirements and avoid impurities from damaging the refrigeration cycle. In addition, the exterior of the equipment should be regularly wiped and cleaned to prevent the accumulation of dust and residual chemicals.

4、 Standardized control of operating environment

A suitable operating environment is the foundation for the stable operation of a chiller, and it needs to be controlled in conjunction with the characteristics of the pharmaceutical workshop environment. Firstly, ensure that the installation area of the chiller is well ventilated to avoid obstruction of condenser heat dissipation caused by poor ventilation, which may lead to an increase in system pressure; Secondly, control the environmental temperature and humidity to avoid accelerated aging of electrical components or corrosion of metal components in high temperature and high humidity environments. Especially in areas where steam and chemicals evaporate in pharmaceutical workshops, equipment protection and isolation should be done well. At the same time, keep the surroundings of the equipment clean, avoid stacking debris that affects operation and heat dissipation, and strictly prohibit storing flammable and explosive materials near the equipment to reduce safety risks.

In summary, in the practical operation of industrial chillers in the pharmaceutical industry, personalized maintenance plans should be developed based on the characteristics of the production process, a complete maintenance ledger should be established, and various hidden dangers should be dealt with in a timely manner. Only by doing a good job in daily maintenance can industrial chillers continue to provide stable temperature protection for pharmaceutical production and assist in drug quality control.