Lingdu Cabinet Air Conditioning Working Principle

Cabinet air conditioners are divided into vapor compression air conditioners, semiconductor air conditioners, and vortex tube air conditioners based on refrigeration principles

The steam compression cabinet air conditioner compresses and condenses the refrigerant through a compressor to release heat, and then evaporates and absorbs heat to reduce the temperature of the environment. When installed on the control cabinet, the heat meter inside the cabinet can be transferred to the outside of the cabinet in a sealed manner, thereby avoiding the entry of high-temperature dust and corrosive gases from the external environment into the control cabinet, which can cause the above-mentioned problems. The temperature and humidity inside the control cabinet remain constant in an ideal state, ensuring the service life and operational stability of electronic components. Cabinet air conditioning+Cabinet air conditioning+Cabinet

Semiconductor air conditioners transfer energy through electronic transfer, without compressors or refrigerants. The structure of the air conditioner is relatively compact, with a small cooling capacity and low COP.

The working principle of a vortex tube air conditioner is that compressed air flows through the vortex tube and becomes two streams of cold and hot air. The hot air flow is discharged at a slightly higher pressure through the vortex tube exhaust device, and the cold air flow is introduced into the heating parts inside the chassis through the splitter, reducing and stabilizing the temperature inside the chassis, while the outside air does not enter the chassis. With a low-cost and reliable vortex tube cooler as the core component, the cabinet cooler can reduce the temperature of compressed air by 45 degrees. The cold air flow is directed into the heating area inside the cabinet through a splitter, while creating positive pressure inside the cabinet, preventing external air from entering and effectively cooling and purifying the cabinet. Small and compact multifunctional electronic control systems, variable speed drive systems, servo systems, and programmable logic control systems are extremely sensitive to heat and pollution. Overheating causes the failure of these sensitive electronic and electrical components, false display in the digital display system, drift in the control system, and misoperation of the system to stop at a load lower than the rated load. The result is a decrease in production efficiency due to frequent machine or production line shutdowns. Fans can only provide insufficient cooling effect and often bring dirty, humid, and corrosive air from the environment into the cabinet, causing damage to electrical equipment. Air conditioners are bulky, difficult to install, and require frequent maintenance, resulting in high operating costs. The vortex cooler has no loss of moving parts and only uses an internal vortex tube to convert compressed air into low-pressure, evenly distributed cold air inside the cabinet. The cold air flow forms a slight positive pressure inside the cabinet, which can prevent dust or pollutants from entering, especially suitable for harsh working environments. From small computer control cabinets, touch screen control boards to large electronic screen cabinets, eddy current refrigerators provide efficient and reliable enclosed protection that will not cause malfunction and parking due to heat and environmental pollution.

The vortex tube generates vortices from compressed air and divides it into two streams - one is the hot air stream and the other is the cold air stream. Compressed air enters a cylindrical vortex generator, which is larger than the heat (long) pipe that generates rotating airflow. Next, the rotating airflow is forced to enter the interior of the heat pipe along the wall at a rotational speed of 1000000 rpm. At the end of the heat pipe, a small portion of air is released as hot air through a needle valve. The remaining air returns at a lower speed through the center of the rotating airflow entering the heat pipe. The hot, slow rotating airflow passes through the rapidly rotating airflow entering the heat pipe. This overspeed cold air flow passes through the center of the generator and releases cold air through the cold air exhaust outlet.