Application and Advantages of Dry Cooler

Application and advantages of dry cooler

The dry cooler does not consume water in its working process. It cools the liquid in the tube by moving the liquid inside the tube and letting natural air flow outside the tube, thereby reducing the temperature of the liquid in the tube to achieve the purpose of cooling. Dry coolers are often used as part of energy-saving computer room air conditioners. Because their working process does not consume energy, they are often used as energy-saving components. The fluid in the dry cooler is cooling water, and ethylene glycol solution is usually used in engineering.

Working Principle

The ethylene glycol solution exchanges heat with the outdoor cold air through the dry cooler, cools it naturally to obtain cooling capacity, and then sends the low-temperature ethylene glycol solution to the surface cooler of the air conditioner by the circulation pump to cool the indoor return air, and finally The treated air is sent into the room by the blower.

Glycol Dry Cooler System

The ethylene glycol dry cooler heat exchange system uses indirect use of natural cold sources, which is also called a natural cooling energy-saving air conditioner. The outdoor dry cooler is used to exchange heat with the outdoor air, and then the ethylene glycol aqueous solution is used as the refrigerant to provide a cold source for the energy-saving coil of the indoor unit to reduce the temperature of the machine room. The unit is controlled by a microcomputer. When the temperature of the ethylene glycol return water is 7°C different from the temperature of the machine room, the natural cooling source can be partially used, and the insufficient part is supplemented by compressor refrigeration. When the temperature difference is above 14°C, the dry cooler can completely replace the compressor refrigeration to achieve energy saving.

Natural cooling air conditioners take advantage of the low freezing point of ethylene glycol aqueous solution and use it as a refrigerant for cooling in winter. The higher the concentration of the ethylene glycol aqueous solution, the lower the freezing point. Therefore, the concentration of the ethylene glycol solution should be prepared according to the lowest temperature in the local winter during application. The specific heat of ethylene glycol aqueous solution is smaller than that of water, and its specific heat will further decrease as its concentration increases. The concentration of ethylene glycol solution of natural cooling special air conditioning units is generally 30% in winter. At this time, its freezing point is -28°C and its specific heat is 3.412KJ/KG·°C. When used in the Northeast region, the concentration of ethylene glycol is 50%. At this time, its freezing point is -35°C and its specific heat is 2.931KJ/KG·°C. It can be seen that the concentration of the ethylene glycol solution affects its heat transfer capacity. According to the heat transfer calculation formula, the heat exchanger between the ethylene glycol solution and the dry cooler can be calculated.

Application and advantages of dry cooler

Dry cooler is a kind of efficient and energy-saving cooling equipment, which is widely used in data centers, industrial manufacturing, petrochemical industry and other fields. As a professional non-standard custom dry cooler manufacturer, Vrcoolertech CST has the following advantages:

1. Complete manufacturing capacity: We have advanced production equipment and technology, and can manufacture various types of dry coolers quickly and efficiently.

2. Flexible customized design: We can provide flexible non-standard customization services according to the different needs of customers, including adjustments in size, shape, material, etc.

3. Excellent quality assurance: We strictly follow the ISO9001 international quality management system standard for production and quality inspection to ensure that the quality of products reaches high standards.

4. Efficient heat dissipation performance: Our dry cooler adopts the latest design and technology, has excellent heat dissipation performance, and can meet various needs of customers.

5. Comprehensive after-sales service: We provide comprehensive after-sales service and technical support to ensure that customers can get better experience and better service when using our products.