CACW (Closed Air Circuit Water) Coolers to Dissipate Heat From Air

CACW (Closed Air Circuit Water) Coolers to Dissipate Heat From Air

CACW coolers utilize a closed loop system with a core working principle:

Air side: The hot air to be cooled passes through the heat exchanger finned tubes or coils and exchanges heat with the cooling water circulating inside, and the heat is absorbed by the water.

Water side: the warmed up cooling water releases heat to the environment through external cooling towers or other heat sinks (e.g. plate heat exchanger), and re-enters the system cycle after cooling.

This design avoids direct contact between the air and the outside world, and is suitable for scenarios with strict requirements for air quality, humidity or cleanliness.

Main Application Areas and Scenarios

1. Industrial manufacturing and processing

Motor and inverter cooling:

It is used for cooling large motors, generator sets (such as high-voltage motors and servo motors) and inverter drives to avoid high temperatures that may cause equipment efficiency to drop or malfunction. For example, rolling mill motors in steel mills, compressor drive motors in chemical plants.

Welding and cutting equipment:

Cooling the control systems and optical components of laser welding machines and plasma cutting machines to ensure stable operation of the equipment for a long time (e.g., body welding process in automobile manufacturing).

Hydraulic and lubrication systems:

Cooling the hydraulic oil of the hydraulic station or equipment lubrication system lubricant, to prevent oil deterioration due to high temperature, commonly used in injection molding machines, construction machinery (such as excavators, cranes).

2. data centers and electronic equipment

Server room cooling:

Cooling of high-density server clusters, through the closed loop water system to take away the heat of the CPU, power modules and other components, to avoid equipment failure due to fluctuations in air humidity in traditional air conditioning systems (especially suitable for tropical regions or high dust environment).

Precision instruments and control systems:

Cooling nuclear magnetic resonance (MRI) equipment, photolithography refrigeration systems in semiconductor manufacturing to ensure equipment precision and stability.

3. Energy and power industry

Cooling of power generation equipment:

Cooling gas turbine, steam turbine control system, exciter and other components, or for photovoltaic inverters, wind turbine converter heat dissipation (such as offshore wind farms closed converter station).

Energy storage system heat dissipation:

Thermal management of lithium battery storage power stations, flywheel energy storage devices, through the CACW system to control the temperature of the battery pack or flywheel to avoid the risk of thermal runaway.

4. Aerospace and rail transportation

Aviation airborne equipment:

Cooling the electronic control unit (ECU) of aircraft engines, radar systems or cabin environmental control systems (e.g. military aircraft in high temperature environments).

Rail transportation traction systems:

Cooling of traction converters and traction motors of high-speed railways and subways to ensure that the temperature of the equipment is stable in high-speed train operation (e.g., cooling of converter cabinets of rolling stock).

5. Medical and scientific research field

Medical equipment:

Cooling radiation sources and detectors of radiotherapy equipment (e.g. linear gas pedal) and medical imaging equipment (e.g. CT, PET-CT) to prevent high temperatures from affecting imaging accuracy.

Laboratory Instruments:

Cooling spectrum analyzers, mass spectrometers, vacuum systems or superconducting magnets, to maintain the stability of the experimental environment (such as low-temperature superconducting devices in university physics laboratories).

6. Special environments and extreme working conditions

Offshore platforms and ships:

Cooling offshore engineering equipment (e.g. compressors on drilling platforms), avoiding corrosion of air cooling systems in humid salt spray environments, and preventing seawater from coming into direct contact with the equipment.

Desert or dusty environments:

Cooling of mining machinery and oil exploration equipment, avoiding sand and dust blocking the cooling channels through closed circulation (e.g. cooling of crusher motors in open-pit mines).