An industrial water chiller is a device designed to remove heat from a process or equipment and transfer it to a separate water source. It is commonly used in various industrial applications, such as cooling machinery, lasers, plastic molding machines, and other processes that generate heat. The basic working principle involves the circulation of a coolant, typically water or a water-glycol mixture, through a closed loop.

Here is a general overview of how an industrial water chiller works:

Evaporator:
The process begins in the evaporator, where the chiller absorbs heat from the process or equipment that needs to be cooled.

The coolant (water or water-glycol mixture) flows through a coil or heat exchanger in the evaporator. As it circulates, it absorbs the heat from the process, causing the coolant to evaporate.

Refrigeration Cycle:
The vaporized coolant is then drawn into the compressor, which increases its pressure and temperature. This compression process is a key step in the refrigeration cycle.

The high-pressure, high-temperature vapor is then routed to the condenser.

Condenser:
In the condenser, the hot refrigerant vapor releases heat to a separate water circuit or air.

As the refrigerant gives up heat, it undergoes a phase change from vapor to liquid.

Expansion Valve:
The high-pressure liquid refrigerant then passes through an expansion valve, where its pressure is rapidly reduced.

This reduction in pressure causes the refrigerant to expand, resulting in a decrease in temperature.

Evaporator (Again):

The now-cool refrigerant returns to the evaporator to absorb more heat from the process, and the cycle repeats.

Cooling Water Circuit:
Simultaneously, a separate water circuit, known as the cooling water circuit, is responsible for carrying away the heat absorbed by the chiller.

This cooling water is circulated through the condenser to remove the heat from the refrigerant.

Control System:
A control system regulates the chiller's operation based on the temperature requirements of the process or equipment being cooled.
The system may include sensors, a thermostat, and a controller to maintain the desired temperature.

By continuously circulating the coolant through this refrigeration cycle, an industrial water chiller efficiently removes heat from the target process or equipment, ensuring that it operates within optimal temperature ranges.

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