Elevator Air Conditioner achieves efficient cooling effect in a limited space, mainly relying on its unique design and refrigeration technology.
1. Refrigeration principle and structure
Elevator Air Conditioner is mainly composed of refrigeration compressor, condenser, capillary tube, evaporator and auxiliary equipment. Its working principle is similar to that of household air conditioner, that is, it adopts steam compression refrigeration.
Compressor: The compressor compresses low-pressure refrigerant vapor into high-temperature and high-pressure vapor and sends it to the condenser.
Condenser: The axial flow fan on the outdoor side forces air to flow through the condenser, and its heat is taken away by the air, and the high-pressure vapor is condensed into high-pressure liquid.
Capillary tube: The high-pressure liquid enters the evaporator after throttling and reducing the pressure through the capillary tube.
Evaporator: In the evaporator, the refrigerant vaporizes and absorbs heat, and the air flowing through the evaporator is cooled by the centrifugal fan. The cold air is blown into the room by the centrifugal fan to achieve the purpose of cooling.
2. Key technologies for efficient refrigeration
Suitable refrigeration method: Elevator Air Conditioner usually adopts compression refrigeration technology, using mechanical energy to achieve the purpose of cooling. This cooling method is very effective in small spaces and can achieve efficient cooling effects.
Environmentally friendly refrigerants: Use environmentally friendly refrigerants such as fluorine-free compounds to maximize the cooling effect while reducing the impact on the environment.
Efficient heat dissipation: Improve cooling efficiency by increasing the heat dissipation area, using heat sinks or metal heat-conducting slide rails and other technologies.
Use of special liquids: For example, using liquids with a condensation temperature lower than the ambient temperature to complete cooling can greatly improve cooling efficiency.
3. Special design and considerations
Condensate treatment: During the operation of the Elevator Air Conditioner, water vapor in the air will condense into water droplets. In order to prevent condensate droplets from flowing into the elevator shaft, a condensate treatment device is provided. The generated condensate flows through the evaporator to the water tray, and is thrown out by the axial flow fan to cool the condenser. At the same time, it evaporates under heat to form water vapor, which is blown into the elevator shaft by the fan.
Secondary evaporation method: In order to keep the placement environment dry, the Elevator Air Conditioner generally uses secondary evaporation to re-evaporate the condensate.
Power supply preparation: Since some elevator cars do not have sufficient power supply preparation, it is necessary to pull additional accompanying cables to ensure the normal operation of the air conditioner.
Elevator Air Conditioner achieves efficient cooling effect in a limited space by adopting vapor compression refrigeration, using environmentally friendly refrigerants, efficient heat dissipation technology, using special liquids, and special condensate treatment and secondary evaporation methods. These technologies and designs enable Elevator Air Conditioner to be widely used in various vertical transportation tools, such as elevators, lifts, escalators, etc., especially in high-rise residential buildings, office buildings, shopping malls and other places where a large number of elevators are required to operate. Elevator Air Conditioner plays an important role in reducing the temperature of the machine, improving the operating efficiency of the equipment, reducing maintenance costs, and achieving the effect of "energy saving and emission reduction".
