Air energy heat pump technology has a history of more than 30 years. With the continuous progress and improvement of technology, air energy heat pump technology has also been applied in many fields. In recent years, the "coal to electricity" project has been continuously promoted, and the air source heat pump has developed rapidly in the heating industry. As we all know, the air source heat pump uses water cycle as the heat transfer medium, and can treat the water temperature to between 0 ℃ and 90 ℃. Therefore, it can be applied to different scenarios under different outlet temperature conditions.
Scenarios and temperatures where air can work:
Central air conditioning refrigeration, temperature 15 ℃ - 20 ℃
The common central air conditioning is mainly refrigeration, while the air source heat pump is mainly heating. However, the extensive water production capacity of air source heat pump makes it have good cooling and heating capacity. When working in summer, the evaporator area, air exchange rate and fin area of the air source heat pump are much larger than those of the ordinary central air conditioner. At this time, through the conversion of four-way reversing valve, the evaporator of the outdoor host becomes a condenser, and the radiator's heat dissipation area is larger than that of the ordinary central air conditioner, and the heat dissipation performance is also greater, so the cooling effect is not inferior to that of the ordinary central air conditioner, and the air outlet mode of the water system air conditioner is softer, the temperature difference is smaller, and the impact on the indoor humidity is also small. When the indoor cooling temperature is reached, the comfort is higher than that of ordinary central air conditioning.
Constant temperature hot water in swimming pool, temperature 26 ℃ - 28 ℃
With the improvement of living conditions, more and more people pay more attention to comfortable home life. There is also a need for swimming in winter, but they need a swimming pool with better thermostatic effect. It is not difficult to keep the temperature of the swimming pool between 26 ℃ and 28 ℃. But more energy saving will be considered. Compared with the traditional heating method of adding and changing plates to the boiler swimming pool, it can achieve a good thermostatic effect, but the boiler burning low temperature water is not its strong point, which will lead to frequent startup and low combustion efficiency. Unlike the air source heat pump, burning low temperature water is more energy-saving, and the operating cost can be saved by more than half.
Floor heating and domestic hot water, temperature 35 ℃ - 50 ℃
The ideal state of air source heat pump is to provide hot water below 45 ℃. In this working state, the air source heat pump has high energy efficiency ratio, strong energy conservation and more stable operation. Dormitories, hotels, factories, etc.) are the main reasons for using air energy heat pumps. It is often said that the water supply temperature of floor heating is between 50 ℃ and 60 ℃, which is also a period of high heating efficiency of wall-mounted boilers. When the water supply temperature of floor heating reaches 45 ℃, the heating efficiency is already very high. The air-energy heat pump floor heating adopts the method of small flow and large temperature difference. The monthly heating cost is more than 50% less than that of electric heating, and more than 300000% less than that of gas-fired wall-mounted boilers. If the indoor floor heating mode with better heat dissipation performance is adopted, the water supply temperature of the air source heat pump can be reduced to 35 ℃, and the energy saving effect will be higher.
For agricultural greenhouse and animal husbandry, the temperature is about 50 ℃
Agricultural greenhouses and animal husbandry need a temperature of about 50 ℃ in winter, while the traditional heating equipment needs to use coal-fired hot-blast stove, which not only consumes high energy, but also causes great pollution. Long-term stability, large temperature fluctuations are easy to cause serious losses, and the use of other electric heating equipment also has problems of high energy consumption and potential safety hazards. This air energy heat pump can be equipped with floor heating, radiator and fan coil. It not only heats more evenly, but also heats faster. It can also intelligently sense and control the temperature in the shed. The potential safety hazard is small, and no special person is required to manage it. Of course, the initial investment of installing air energy heat pump equipment will be larger, but the stability of heating reduces the risk of loss due to temperature fluctuations, and the energy consumption used is also lower and cleaner.
Heating radiator system, temperature 65 ℃ - 80 ℃
The radiator is one of the heating ends of the air energy heat pump. High temperature water flows in the radiator to release heat and increase the indoor temperature. There are many kinds of radiators, including iron radiators, steel radiators, copper-aluminum composite radiators and copper radiators. Because the heat transfer mode of the radiator is convection and radiation, there is no fan coil for direct blowing. And the temperature is not as uniform as the ground heating. Therefore, in order to make the radiator reach the indoor temperature, it is necessary to provide water temperature above 60 ℃ to meet the indoor heating demand. Using air source heat pump to drive radiator requires more electric energy to exchange heat. The larger the house area, the required radiator. The larger the number, the higher the energy consumption. At this time, the radiator acts as one end of heat dissipation. It is difficult for ordinary air source heat pump to achieve the energy saving performance. High temperature cascade heat pump is required to meet the requirements.
The application of air source heat pump covers domestic and commercial domestic hot water, heating, refrigeration, constant temperature greenhouse, drying, drying, high temperature heat pump, industrial heat pump, constant temperature heat storage, complementary energy, waste heat recovery and other fields. The heat supply is based on science and technology and continues to extend outward, and has penetrated into the domestic electricity industry, air conditioning industry, solar energy industry, electric heating industry and other fields. With the attention paid to "energy conservation and emission reduction" and "clean energy" by all walks of life, the application fields of air energy heat pump are still increasing. In the future, air-energy heat pump will play a great role in the field of heating and cooling.
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