What is air cooler?
The air cooler is a type of heat exchanger that uses the surrounding air as a cooling medium to cool or condense high temperature process fluids. It is also known as an "air cooling device" or "fin and air blower," and can replace water-cooled shell and tube type heat exchangers.
It is independent of equipment, occupies a small area, and can be placed indoors or outdoors based on user requirements. The equipment connecting hose can use a steel tube, and the water pressure can be adjusted using a valve. The water pressure gauge on the display package shows the pressure, and all valves must be shut down before using high frequency equipment.
Before use, the water drain valve package must be opened to drain the water and ensure that no debris is present to prevent blockages. This is achieved by using its own cycle.
Using an air cooler provides several advantages.
Firstly, it can improve the service life of electronic tubes, as ordinary water can easily scale and needs regular cleaning. If left unchecked, this can affect the emission power and life of the electron tube, and may even cause the anode to burn through.
Secondly, using an air cooler can save energy. For example, a 100KW high frequency electronic tube equipment would use approximately 8KW of ordinary water and 70W of distilled water.
Thirdly, using an air cooler can reduce electrolytic corrosion. DC current is formed by the water resistance of the anode high voltage, which causes electrolytic corrosion. The electrolytic corrosion rate of ordinary water is one hundred times higher than that of distilled water.
The storage tank of the air cooler varies from 0.4m3 to 2.0m3 depending on the devices power, and the water price is between 250 and 300 yuan per ton. Because it uses a closed cycle, water consumption is very low. As a result, distilled water can be used, and a special anti-freezing product can be developed to solve the problem of high frequency water freezing in winter.
Using distilled water not only improves equipment and component life but also reduces maintenance costs, which helps to increase productivity and save energy.
The air cooler uses air and water softening wall heat exchangers to emit heat from electrical components such as the electric inductor, thyristor, and tube into the air. The combination of high heat flux and high thermal conductivity of the heat transfer tube results in high device cooling efficiency.
Using air heat transfer, the heat is transferred to the air, and the heat of the product meets the requirements of the induction heating system temperature. The cooling system uses distilled water in the air cooler and induction heating equipment in a closed cycle, ensuring that the electrical system is cooled for a long time without scaling or blockages.
A spray device, which consists of a spray pump, water tray, spray pipe, and other components of an independent cycle system, is used during hot summer weather. A small amount of water is injected into the fin surface of the heat pipe in the air blower and heat transfer tube, reducing the surface temperature to meet the heat transfer temperature difference requirements.
The air cooler is a sealing type, closed cycle system. Water enters the water storage tank, and a pipe pump softens the water and forces it into the heat transfer tube group for air cooling. The cooling water flows into the corresponding equipment package, and the water pipe has a water diversion bag, which is connected to the inlet of the needed equipment using a hose or pipe.
The fan selection uses a large air flow, low noise, and small power of the axial flow fan, while the pump selection uses a pipe. Therefore, in the same lift and flow cases, the centrifugal pump motor power used in conventional water cooling systems is the same.
Finned air cooler |
