Air Source Heat Pump System Split Heat Pump System
DV Inverter Air Source Heat Pump for Heating and Cooling Wifi/EVI
Air conditioners are the most common equipment that can be used for cooling and heating in our lives, and they are also widely used in families. Air conditioners are very strong in refrigeration, but weak in heating. After the temperature reaches below zero in winter, the capacity of air conditioners decreases significantly, making it difficult to maximize its effectiveness in the north. With the public’s attention to environmental protection, energy conservation, stability, safety and other factors, the air to water heat pump system has emerged as a new options. It can not only meet the user’s demand for refrigeration in summer, but also meet the demand for heating in winter. The air source heat pump has a long history of development. At this time, with the change of coal to electricity, it is favored by the public when it enters the field of home decoration.
Difference between air energy heat pump and air conditioning:
Analyze from the equipments:
Most air conditioners are fluorine systems, which can be used for cooling and heating theoretically. However, from the actual situation, the main function of air conditioners is cooling, and heating is equivalent to its secondary function. Inadequate design results in poor heating effect in winter. When the ambient temperature is lower than – 5 ℃, the heating capacity of the air conditioner drops significantly, or even loses its heating capacity. In order to make up for the poor heating in winter, the air conditioner has designed electric auxiliary heat to assist. However, the electric auxiliary heat consumes huge power and makes the room extremely dry. This heating method reduces the comfort of users and increases the electricity cost.
As the saying goes, “Refrigeration is the duty and heating is the skill”. If the air conditioner wants to have a good heating effect, it depends on the ambient temperature. The air to water heat pump system is designed for heating. Under the nominal heating condition of air energy heat pump, the air temperature is – 12 ℃, while under the nominal heating condition of air conditioner, the air temperature is 7 ℃. The main design conditions of heat pump heating machine are below 0 ℃, while all design conditions of air conditioning heating are above 0 ℃.
It can be seen that the essential difference between air source heat pump and air conditioning is mainly the different application scenarios. Heat pump is generated for heating in winter, while air conditioning is focused on cooling, giving consideration to heating, and its heating is only used for the normal temperature scenarios. In addition, although they are similar in appearance, their principles and application methods are actually two different products. In order to ensure a good heating effect, the compressors of air to water heat pumps use low-temperature air injection enthalpy increasing pressure technology, and the air conditioners use ordinary compressors. In addition to the traditional four major components (compressor, evaporator, condenser, throttling components), the heat pump unit usually adds an intermediate economy or flash evaporator to provide low-temperature and low-pressure refrigerant injection for the jet enthalpy increasing compressor, so as to improve the heating capacity of the heat pump unit.
System analysis
As we all know, floor heating is more comfortable than fan coil units in winter, while air source heat pump can be used with fan coil units, floor heating or radiator as the end. The most widely used end in winter is floor heating. The heat is mainly transmitted by radiation. The heat is evenly distributed, and the heat is transmitted from bottom to top. The room is warm from bottom to top, which is consistent with the physiological characteristics of the human body (there is a saying in Chinese medicine that “warm enough, cool top”), Give people natural comfort. The floor heating is installed below the floor, which does not affect the indoor aesthetics, does not occupy indoor space, and is convenient for decoration and furniture layout. The temperature is also controllable.
In summer, both the heat pump and the air conditioner are cooled by fan coil units. However, the cooling capacity of the air energy heat pump is transmitted by water circulation. The fan coil units of the water system are more gentle than those of the fluorine system. The air outlet temperature of the fan coil units of the air energy heat pump is between 15 ℃ and 20 ℃ (the air outlet temperature of the fluorine system is between 7 ℃ and 12 ℃), which is closer to the human body temperature and has less impact on indoor humidity, You will not feel thirsty. It can be seen that the comfort level of air energy heat pump refrigeration is higher when the refrigeration effect can be achieved.
Cost analysis
On the premise of the same use of floor heating, traditional floor heating uses gas wall hung stove for heating, while gas is a non renewable resource, and the utilization rate ignores heat loss, with the output ratio higher than 1:1, that is, one share of gas can only provide the heat that one share of gas has, and condensing wall hung stove can only provide 25% more heat than ordinary wall hung stove. However, the air energy heat pump is different. A small amount of electric energy is used to drive the compressor to do work, and the low-grade heat in the air is converted into the high-grade heat needed indoors. The energy efficiency ratio is more than 3.0, that is, one share of electric energy can absorb more than three shares of air energy, and more heat can be obtained indoors.
Air energy heat pump exists in the form of dual supply in home decoration. The energy consumption of cooling in summer is almost the same as that of air conditioning, but the thermal efficiency of heating in winter is much higher than that of air conditioning, so the energy consumption is much lower than that of air conditioning. The energy saving of the air energy heat pump is even more energy saving than that of the gas wall mounted furnace heating. Even if the stepped gas price is adopted in China, the cost can be saved by more than 50%. It can be seen that the cost of air energy heat pump cooling is similar to that of air conditioning, while the cost of heating is lower than that of air conditioning and gas wall mounted furnace heating.
summary
The air source heat pump system has the advantages of comfort, energy conservation, environmental protection, stability, safety, long life, and multiple use of one machine. Therefore, after being put into home decoration, most users will understand and buy it immediately. For ordinary users, refrigeration and heating need energy conservation, safety and long life. For users with higher requirements, heating and heating comfort are their focus. Therefore, air to water heat pump system can develop rapidly in the home decoration industry.
Post time: Nov-19-2022