Adiabatic Dry Cooler for Air Compressors

Adiabatic Dry Cooler for Air Compressors

Working Principle

Dry cooling mode: When the ambient temperature is lower than the set temperature of the fluid to be cooled, the adiabatic dry cooler operates in dry cooling mode. At this time, the fan starts, the ambient air is sucked in and forced through the cooling coil. The high temperature fluid from the large air compressor circulates in the cooling coil. Through heat conduction and convection, the heat is transferred from the fluid in the coil to the wall of the coil, and then from the wall to the fins and the surrounding air, thus realizing the cooling of the fluid.

Adiabatic Cooling Mode: When the ambient temperature rises and the dry cooling mode fails to cool the fluid to the set temperature, the cooler switches to the adiabatic cooling mode. By spraying water mist to the inlet side of the cooling coil or making the air pass through the wet pad, after the air comes into contact with the water, the water evaporates and absorbs the heat, which lowers the temperature of the air, thus realizing the cooling of the fluid in the coil, and the cooling effect can be lower than the ambient dry-bulb temperature.

Structural composition

Cooling coil: usually made of copper or stainless steel tubing, the internal circulation of the fluid to be cooled, such as glycol solution, water, etc.. The outer surface of the coil usually has fins to increase the heat dissipation area and improve the heat exchange efficiency.

Fans: Depending on the size of the cooler and the cooling requirements, several fans can be equipped to generate airflow to keep the cold air flowing over the surface of the cooling coil to take away the heat.

Spraying system: used in adiabatic cooling mode, including water pump, nozzle, water pipe and other components, responsible for spraying water evenly on the air inlet side of the cooling coil or on the wet pad to realize the adiabatic cooling effect.

Wet pad: generally made of absorbent and corrosion-resistant materials, such as fiber materials. When the air passes through the wet pad, the water evaporates and absorbs heat to reduce the air temperature.

Frame structure: used to support cooling coil, fan, spray system and other components, usually made of steel or aluminum alloy structure with good stability and strength.

Advantages

Remarkable energy-saving effect: compared with the traditional cooling method, the adiabatic dry cooler can automatically switch between dry cooling mode and adiabatic cooling mode through intelligent control according to the ambient temperature and load conditions, effectively reducing energy consumption, with the maximum energy saving of up to 20%.

Excellent water-saving performance: in dry cooling mode, there is no need to consume water resources; even in adiabatic cooling mode, the water consumption is relatively small, compared with the traditional water-cooled cooling equipment, it can significantly save water resources, and it is suitable for water-scarce areas or places with high requirements for water resource protection.

Stable and reliable operation: there is no complex water treatment system, reducing equipment failures and maintenance costs caused by water quality problems. At the same time, the structure of the cooler is relatively simple, with fewer operating parts, and key components such as fans and water supply systems are usually designed with redundancy, so that even if part of the components fail, the system can still operate reliably, ensuring the cooling needs of large air compressors.

Good cooling effect: through the reasonable design of cooling coil and fan parameters, as well as optimizing the fin structure and spraying system, high heat exchange efficiency can be achieved, and the high temperature fluid discharged from the large air compressor can be cooled down to a lower temperature to meet the normal operation requirements of the air compressor.

Convenient installation and maintenance: usually modularized design, compact structure, small footprint, simple and quick installation, can be flexibly arranged according to the site space and process requirements. In addition, the equipment has a large access door and a convenient pre-cooling plate disassembly structure, so that daily inspection and maintenance can be completed without entering the interior, saving time and labor.

Application Scenarios

Industrial production: In chemical, petroleum, metallurgy, electric power and other industries, large air compressors are widely used in various processes, such as chemical reaction, gas transportation, material mixing, etc. The adiabatic dry cooler can effectively cool down the air compressor, ensure its stable operation, and safeguard the continuity of the production process.

Data Center: The air compression system in data center requires efficient cooling equipment to maintain a stable operating environment. Adiabatic dry coolers can provide reliable cooling for air compressors while saving energy and water resources, which is in line with the green and energy-saving development needs of data centers.

Building HVAC systems: In the HVAC systems of large commercial buildings and industrial plants, large air compressors are used to provide compressed air to drive the air conditioning equipment, and adiabatic dry coolers can cool the air compressors to improve the operating efficiency and stability of the air conditioning system.