What is the principle of industrial chiller?

Industrial air-cooled chillers are refrigeration equipment that uses air as a cooling medium and are widely used in industrial production, commercial buildings, laboratories and other scenarios. Its core function is to transfer heat from the target area (such as machinery or buildings) to the external environment through a refrigeration cycle, thereby achieving the purpose of cooling.

Core components

Industrial air-cooled chillers are mainly composed of the following core components:

1. Compressor: As the "heart" of the refrigeration cycle, the compressor is responsible for compressing the low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure gas to provide power for the refrigeration cycle.

2. Air-cooled condenser: The high-temperature and high-pressure refrigerant gas exchanges heat with the air in the air-cooled condenser, releases heat and condenses into a high-pressure liquid.

3. Expansion valve: The high-pressure liquid refrigerant passes through the expansion valve throttling, and the pressure and temperature drop sharply, becoming a low-temperature and low-pressure liquid.

4. Evaporator: The low-temperature and low-pressure liquid refrigerant absorbs the heat of the cooled medium (water or air) in the evaporator, evaporates into a low-temperature and low-pressure gas, and completes the refrigeration cycle.

Working Principle

The working principle of industrial air-cooled chillers is based on the reverse Carnot cycle, and the specific process is as follows:

1. Compression process: The compressor sucks the low-temperature, low-pressure refrigerant gas in the evaporator and compresses it into a high-temperature, high-pressure gas.

2. Condensation process: The high-temperature, high-pressure refrigerant gas enters the air-cooled condenser, exchanges heat with the air, releases heat and condenses into a high-pressure liquid.

3. Throttling process: The high-pressure liquid refrigerant is throttled by the expansion valve, and the pressure and temperature drop sharply, turning into a low-temperature, low-pressure liquid.

4. Evaporation process: The low-temperature, low-pressure liquid refrigerant enters the evaporator, absorbs the heat of the cooled medium, evaporates into a low-temperature, low-pressure gas, and completes the refrigeration cycle.

Workflow

1. Cooling water circulation: The chiller transports cooling water to the equipment or area that needs to be cooled through a water pump. After absorbing heat, the temperature rises and then returns to the chiller for cooling.

2. Refrigerant cycle: The refrigerant circulates between the compressor, air-cooled condenser, expansion valve and evaporator, continuously absorbing and releasing heat to achieve continuous cooling.

3. Heat discharge: The air-cooled condenser discharges the absorbed heat to the external environment, usually by forcing air flow through a fan to dissipate heat.

Application areas

Industrial air-cooled chillers are widely used in the following fields:

Industrial production: such as plastic processing, food and beverage, chemical, pharmaceutical and other industries, for equipment cooling and process cooling.

Commercial buildings: such as hotels, shopping malls, office buildings, etc., for central air-conditioning systems to provide a comfortable indoor environment.

Laboratories: such as biological, medical, electronic and other laboratories, for cooling and constant temperature control of precision instruments and equipment.

Industrial air-cooled chillers transfer heat from the target area to the external environment through a refrigeration cycle to achieve cooling. Its core components include compressors, air-cooled condensers, expansion valves and evaporators, and its working principle is based on the reverse Carnot cycle. Air-cooled chillers have the advantages of compact structure, easy installation and simple maintenance, and are widely used in industrial production, commercial buildings and laboratories.