Dry Cooler with Spray System

Dry Cooler with Spray System

Working Principle: The dry cooler spray system utilizes the principle of combining spray cooling and evaporative cooling. Through the special nozzle will be atomized water sprayed into the dry cooler below the tube bundle or directly sprayed on the tube bundle, thereby increasing air humidity and reducing air temperature, and then by the fan will be cooled air and water spray into the tube bundle, and the fins on the surface of the tube bundle for evaporative heat exchange, and then quickly reduce the surface temperature of the tube bundle, improve the heat transfer efficiency of the dry cooler.

System composition: usually consists of four parts: multi-stage water pump device, piping, spray device, control device. Spraying device is installed on each stainless steel sub-pipe, and a number of special atomized nozzles are installed on each spraying sub-pipe. Through the control device, the start and stop of the water pump and the intensity of spraying are automatically controlled according to the ambient temperature, the operating status of the dry cooler and other factors.

Advantageous features: In the high temperature season, the dry cooler spraying system can reduce the actual return air temperature of the heat exchanger by about 5℃, and improve the heat exchange capacity by nearly 60%, which can effectively improve the heat dissipation capacity of the dry cooler and meet the needs of data centers and other places with high cooling requirements. At the same time, the system consumes less water, and can be automatically emptied to achieve health requirements and avoid freezing, reducing the maintenance workload and difficulty.

Applicable Scenario: The dry cooler spray system is suitable for high temperature environment with high cooling efficiency requirements, such as data centers and large industrial plants. In the data center, when the outdoor temperature is high in summer, the spray system can assist the dry cooler to better dissipate heat to ensure the normal operation of the data center servers and other equipment. In industrial production, for some need a lot of cooling process, dry cooler spray system can also play an important role in improving production efficiency and product quality.

Design and maintenance points: the design needs to reasonably select the type, number and arrangement of nozzles to ensure that the atomization effect and coverage area, at the same time, according to the size of the dry cooler and cooling needs to determine the appropriate pump head and flow. Maintenance, we should regularly check the spray system piping, nozzles and other components to prevent clogging and damage, but also pay attention to the water quality treatment, to avoid scaling to affect the spray effect and the performance of the dry cooler.