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Analysis of the role of industrial coolers: principles, applications and maintenance guides

1. Working principle: the core of heat exchange technology

Industrial coolers are indispensable thermal management equipment in modern industrial production. Industrial coolers mainly achieve heat transfer through forced convection heat exchange. The cooling system mainly consists of four parts: compressor, condenser, expansion valve and evaporator, forming a complete refrigeration cycle. The compressor compresses the low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure state, and then enters the condenser, releases heat through heat exchange with the cooling medium and condenses into a liquid state. After the liquid refrigerant passes through the expansion valve to throttle and reduce the pressure, it absorbs the heat of the cooled object in the evaporator and vaporizes to complete the refrigeration cycle.

 

Comparison table of industrial coolers and traditional cooling methods

Features

Industrial cooler

Traditional cooling tower

Air cooling system

Cooling efficiency

High (COP 2.5-4.5)

Medium (depends on ambient humidity)

Low (largely affected by ambient temperature)

Temperature control accuracy

±0.5℃

5℃至35℃

0℃至40℃

Energy consumption level

Medium

Low

High

Maintenance complexity

Medium-high

Low

Medium

 

2. Specific role: multi-faceted guarantee of industrial production

Industrial coolers play multiple key roles in modern production. In terms of temperature control, it can accurately maintain the process temperature within the standard range, which is crucial for industries such as plastic injection molding, food processing and pharmaceutical production. Studies have shown that good cooling can extend the life of equipment by 30-50%. In the field of energy conservation and consumption reduction, efficient cooling systems can recycle 60-80% of waste heat for other process links, such as preheating water or space heating. In terms of environmental compliance, modern chillers use environmentally friendly refrigerants and closed-loop designs, which reduce water consumption and chemical pollutant emissions by 90% compared to open cooling systems.

 

3. Usage specifications and scientific maintenance

  • Installation specifications:

The cooler should be installed in a well-ventilated place with an ambient temperature below 35°C, and keep at least 1.5m away from the heat source. Water-cooled models need to be equipped with a water quality treatment system to maintain a hardness of <100ppm and a pH value of 6.5-8.0. The power supply voltage fluctuation should be controlled within ±10%, and a dedicated transformer is recommended for high-power units (>50kW).

 

  • Operation points:

Check the refrigerant pressure before starting, gradually load the machine (increase the load by 25% every 15 minutes), monitor the inlet and outlet water temperature difference during operation (standard working conditions 5-7°C), and keep the condenser clean (pressure drop <50Pa when the fin spacing >2mm).

 

Maintenance cycle table:

Maintenance items

Cycle

Standard requirements

Filter cleaning

MonthlyPressure difference <50kPa

 

Condenser dust removal

Quarterly

Fins are transparent and not blocked

Refrigerant testing

Half a year

No leakage, purity > 98%

Circuit inspection

Annual inspection

Insulation resistance>5MΩ

Lubricant replacement

2 years

Viscosity change <15%