Industrial water chillers are mainly used to provide cooling for equipment or products in industrial processes. Their core function is to transfer heat from one place to another-typically by removing heat from production equipment or processes and releasing it into the environment. Below is the basic working principle of an industrial chiller:
Basic Components of Industrial Water Chillers:
- Compressor: Compresses low-pressure, low-temperature refrigerant gas into high-pressure, high-temperature gas.
- Condenser: Cools the high-pressure, high-temperature refrigerant gas into a high-pressure liquid, usually through air or water cooling.
- Expansion Valve: Controls the flow of refrigerant and reduces its pressure, turning it into a low-pressure, low-temperature liquid.
- Evaporator: The low-temperature, low-pressure refrigerant absorbs heat from the cooling medium (such as water), evaporates into gas, and provides cooling.
- Circulation Pump: Circulates chilled water to the equipment or system.
Brief Description of the Working Process:
Refrigerant Cycle:
- The compressor draws in low-pressure, low-temperature gas from the evaporator and compresses it into a high-pressure, high-temperature gas.
- The gas is cooled in the condenser and converted into a high-pressure liquid.
- The expansion valve throttles the liquid, reducing its pressure and temperature.
- The refrigerant enters the evaporator, absorbs heat, evaporates into gas, and returns to the compressor.
Water Cycle (also called the "coolant cycle"):
- Chilled water from the tank is pumped into the equipment or mold that requires cooling.
- After absorbing heat, the warmed water returns to the evaporator of the chiller.
- The refrigerant cools the water, reducing its temperature, and the cycle repeats.
Classification of chillers (by cooling method):
|
Type |
Feature |
|
Air cooler chiller |
It uses fans to dissipate heat and does not require an external cooling tower. It is suitable for use in areas with limited water resources or for cooling small-scale equipment. |
|
Water cooler chiller |
An external cooling tower is required. It offers high cooling efficiency and is suitable for large-scale industrial applications. |
Examples of industrial applications:
- Cooling molds in plastic machinery (such as injection molding machines)
- Cooling during metal processing (such as CNC machining)
- Cooling of electroplating solutions
- Cooling processes in the food and pharmaceutical industries
If you work in the plastic machinery industry, industrial chillers are typically used to control mold temperature, prevent shrinkage and deformation of plastic products, and improve molding efficiency.
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