Many people will think that the air source heat pump air conditioner can only be used for heating, and refrigeration is completely incompatible, in fact, this is a one-sided idea. With the development of technology and the country's vigorous promotion of clean energy, air source heat pump air conditioning can now be both heated and cooled.
Air source heat pump air conditioning belongs to the water system central air conditioning, the use of water circulation refrigeration, the outlet temperature is higher, soft, and the outdoor temperature difference will not be too large, blowing on the body does not sting cold. At the same time, it can maintain the optimal indoor humidity environment and avoid indoor dryness. The air conditioner is a fluorine system, the main use of the air conditioner at the beginning of the design is refrigeration, so the accessories of the fuselage are designed for refrigeration, the energy efficiency conversion of the air conditioner in the refrigeration is relatively high, the air outlet temperature is relatively low, the temperature difference with the outdoor will be relatively large, the indoor will be relatively dry, blowing to the body will be more prickly cold, cooling is faster.
In principle: the biggest difference between air source heat pumps and traditional air conditioners is the way of refrigeration. The air source heat pump belongs to the water system, and the heat pump is used to convert the air energy, thereby generating heat and cooling effect. The traditional household air conditioner belongs to the fluorine machine, its principle is to convert the liquid with refrigerant and compress, and then enter the evaporator at a low temperature, and finally send out cold air through the fan.
Different compressors determine the different use effects of the product and different use areas. Air conditioning compressor, R22 as an example, the normal operating pressure does not exceed 2.0MPa, the compressor ratio is less than 7, the maximum exhaust temperature does not exceed 90 degrees; but the air source air conditioner must use a heat pump compressor, also to R22 as an example, the maximum operating pressure reaches 3.0MPa, the compressor ratio reaches 12, or even higher to 20, the maximum exhaust temperature can reach 110 degrees.
The difference in these parameters requires the processing accuracy of the heat pump compressor, bearing strength, motor temperature resistance and other aspects to be improved by the order of magnitude of the air conditioning compressor, in order to express more intuitively, let's take a look at the operating range comparison chart of the two compressors.
Comparison chart of the operating range of air conditioning compressors (A/C) and heat pump compressors (HPWH).
In the figure, the horizontal axis corresponds to the evaporation temperature (equivalent to the outdoor ambient temperature of the heat pump), and the vertical axis corresponds to the condensation temperature (equivalent to the outlet or water temperature on the use side of the heat pump), and it can be seen that the operating range of the heat pump compressor is exponentially expanded on the air conditioning compressor. #空调 #