With the continuous development of the society, people's living standards are constantly improving, and the quality of life is getting better and better. Almost every family has air conditioners installed. Now there are many types of air conditioners on the market. The more popular with everyone, the improved air conditioning and refrigeration technology, then, what is the working principle of central air conditioning ? What are the advantages of central air conditioning?
First, what is the working principle of central air conditioning?
1. The refrigeration compressor unit compresses the air-conditioning refrigerant (cold medium such as R134a, R22, etc.) into a liquid and sends it to the evaporator through a compressor. The refrigerating circulating water system pumps the normal temperature into the evaporator coil through the chilled water pump and indirectly with the refrigerant. Heat exchange, so that the original normal temperature water becomes low-temperature chilled water, and the chilled water is sent to the cooling coil of each fan tuyere to absorb the heat of the air around the coil, and the generated low-temperature air is blown to each room by the coil fan. Thereby achieving the purpose of cooling.
2. After the refrigerant is fully compressed in the evaporator and completed with the heat absorption process, it is sent to the condenser to restore the normal pressure state, so that the refrigerant releases heat in the condenser, and the heat released is through the circulating cooling water. The cooling water of the system is taken away. The cooling circulating water system pumps the normal temperature water into the condenser heat exchange coil through the cooling water pump, and then sends the heated cooling water to the cooling tower, which is naturally cooled by the cooling tower or passed through a cooling tower fan. Spray forced air cooling is performed, and sufficient heat exchange is performed with the atmosphere to return the cooling water to normal temperature for recycling.
3. When heating is needed in winter, the central air-conditioning system only needs to pump the normal temperature into the coil of the steam heat exchanger through the hot and cold water pump (called the chilled water pump in summer), and then pass the hot water with the steam to exchange the hot water. It can be supplied to the fan coils of each floor to provide heating hot air to the user.
4. Liquid vaporization refrigeration is to realize the refrigeration by utilizing the heat release effect during liquid vaporization and condensation. The liquid vaporizes to form steam. When the liquid (refrigerant) is in a closed container, there is no gas other than the liquid and the steam generated by the liquid itself. The liquid and steam will reach equilibrium under a certain pressure. The vapor is called saturated steam, the pressure is called saturation pressure, and the temperature is called saturation temperature.
Second, the advantages of central air conditioning
1. The position where the central air conditioner is installed is hidden inside the ceiling, so the installation control of the air conditioner hang-up and the cabinet can be saved, and the space-saving appearance is beautiful. The air vents installed in the ceiling can better match the interior decoration, and have more controllable and multilateral features during installation, making the interior decoration more fashionable.
2, the ordinary air-conditioning life is generally 5-10 years, the average life of central air-conditioning is about 20 years, far greater than the split-type air conditioner, the central air-conditioning fault is much lower than the split-type air conditioner, so The low failure rate of the central air conditioner is also very long.
3. The central air-conditioning adopts a one-to-many installation mode, so the number of outdoor units of the air conditioner is greatly reduced, and the air conditioner frequency conversion balance further enhances the energy saving degree. Compared with the split type air conditioner, the central air conditioner consumes less energy. Long-term use to see more energy-saving capabilities.
The above is the introduction of the central air-conditioning working principle and the advantages of central air-conditioning. If you want to know the working principle of central air-conditioning, you can refer to the small series for everyone to introduce, I hope to help everyone, if Also want to know more about the decoration information, please continue to pay attention to the decoration home network.
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