Air cooled freezer - low-temperature constant temperature freezer

Guanya Refrigeration - Low Temperature Refrigerator (Supporting Non Standard Customization)

The medium-sized single fluid low-temperature freezer produced by Wuxi Guanya Constant Temperature Refrigeration Technology Co., Ltd,

The cooling temperature range is from -100 ℃ to -5 ℃, with fast cooling speed,

Used for rapid cooling of liquids,

Widely used in industries such as petrochemicals, pharmaceuticals, biochemistry, freeze-drying, pharmaceuticals, etc

Air cooled freezer - low-temperature constant temperature freezer

Air cooled freezer - low-temperature constant temperature freezer

Chiller refrigeration machine is one of the key equipment for process cooling in the chemical industry, and its stable operation is directly related to production continuity and product quality.

1、 Causes of malfunctions related to refrigeration media

Abnormal refrigerant is a frequent cause of malfunctions. In chemical production, the cooling medium is prone to mixing with process impurities and corrosive substances, causing the medium to deteriorate, blocking filters and pipelines, and affecting circulation efficiency; If the liquid level of the medium is insufficient or not replenished in a timely manner, the circulating pump is prone to inhaling air, causing pressure fluctuations, and even causing the pump body to slip and wear; In addition, the mismatch between the medium selection and the working conditions of the refrigeration machine can accelerate the occurrence of problems in internal components of the equipment, leading to leakage or refrigeration failure.

2、 Malfunctions caused by loss of core components

The aging or damage of core components directly affects the cooling effect. As the power core, the compressor operates under high load for a long time, and insufficient lubrication can easily lead to rotor wear and abnormal noise; Poor contact of electrical components or aging of coils can cause compressor start-up failure or overheating during operation; The condenser and evaporator are key to heat exchange, and in chemical environments, they are prone to blockage due to dust and residual medium scaling, which hinders heat transfer and leads to a decrease in refrigeration capacity; The blockage of the throttle valve core or malfunction of the temperature sensing element can cause abnormal refrigerant flow and affect the stability of the refrigeration cycle.

3、 The impact of abnormal circulation system

Insufficient patency of the circulatory system can easily lead to chain failures. Long term exposure of pipelines to chemical media can lead to corrosion, aging of seals, and leakage of refrigerants or cooling media, which can reduce refrigeration efficiency; The filter is not cleaned regularly, and the accumulation of impurities can cause pipeline blockage, increase system pressure, and trigger the shutdown of the protective device; Circulating pump failures are mainly caused by impeller wear and bearing damage, resulting in insufficient flow and inability to achieve heat exchange, which affects the overall cooling effect.

4、 Electrical control and environmental adaptation issues

Electrical control system failures can easily lead to operational disruptions. The temperature sensor may experience signal drift or damage due to vibration and corrosion in the chemical environment, causing the controller to misjudge the operating conditions and resulting in excessive or insufficient cooling; The insulation layer of the line is damaged due to high temperature and chemical corrosion, which can easily cause short circuits and open circuits, leading to equipment shutdown; In addition, environmental factors such as high temperature, high dust, and corrosive gases in chemical workshops can accelerate the aging of electrical components, reduce equipment adaptability, and increase the probability of failure.

The common faults of chiller refrigeration machines in the chemical industry are closely related to the medium state, core components, circulation system, and environmental adaptation. Targeted media testing, component inspection, pipeline cleaning, and electrical protection are necessary in daily maintenance to timely reduce hidden dangers and ensure stable equipment operation, providing reliable cooling support for chemical production.