How to operate the central air-conditioning business in residential areas

Running the central air-conditioning business in the community can run through the performance of the central air-conditioning, such as:

1, central air conditioning refrigeration: liquid vaporization refrigeration uses the heat absorption when liquid vaporizes and the heat release effect when condensing to realize refrigeration. Liquid evaporates to form steam. When the liquid (refrigerant) is in a closed container, there is no other gas except the vapor generated by the liquid and the liquid itself, and the liquid and the vapor will reach equilibrium under a certain pressure. At this time, the gas is called saturated steam, the pressure is called saturated pressure, and the temperature is called saturated temperature. When the liquid is in equilibrium, it will no longer evaporate. At this time, if a part of steam is pumped out of the container, the liquid will inevitably continue to vaporize to generate a part of steam to maintain this balance. When a liquid vaporizes, it absorbs heat, which is called latent heat of vaporization.

2. Heating by central air conditioning: the low-pressure gas sucked by the compressor is compressed into high-temperature and high-pressure gas by the compressor, and the high-temperature gas raises the water temperature through the heat exchanger, and at the same time, the high-temperature gas will condense into liquid. The liquid evaporates when it enters the evaporator. (When the evaporator evaporates, there must also be a heat transfer medium. According to the different heat transfer media, the model and structure of the machine are also different. Commonly used are air cooling and ground source. After the liquid passes through the evaporator, it becomes low-pressure and low-temperature gas, and the low-temperature gas is sucked by the compressor again for compression.