In recent years, air source heat pumps have attracted much attention and are popular in the market. However, there are several factors that significantly affect the performance of air source heat pumps: first, under low ambient temperature conditions, the performance of air source heat pumps is significantly reduced; second, the frost problem during the heating process seriously affects energy efficiency. and reliability. In order to solve the above problems, many researchers and engineering technicians have invested a lot of energy in improving air source heat pump technology in recent years.
Low temperature air source heat pump - working principle of low temperature air source heat pump
The air source heat pump unit consists of four main components: evaporator, condenser, compressor, and expansion valve to form a closed system, which is filled with an appropriate amount of working fluid. The basic operating principle of the unit is based on the reverse card cycle principle: the liquid working medium first absorbs heat in the air in the evaporator and evaporates to form steam (vaporization). The latent heat of vaporization is the recovered heat, and then is compressed into high-temperature and high-pressure gas by the compressor. It enters the condenser and condenses into a liquid state (liquefaction), and transfers the absorbed heat to the required heated water. The liquid working medium is decompressed and expanded by the expansion valve and then returns to the expansion valve, absorbing heat and evaporating to complete a cycle, and so on. It continuously absorbs the heat from the low-temperature source and outputs the heated water, directly reaching the predetermined temperature.
Low-temperature air source heat pump—Characteristics of low-temperature air source heat pump
1.Safety
Because it does not use electric heating elements for direct heating, compared with electric water heaters, it eliminates the safety hazards of leakage; compared with gas water heaters, there are no safety hazards such as gas leakage or carbon monoxide poisoning, so it has better safety performance.
2. Comfortable
The air energy heat pump is of the heat storage type. The heating function starts automatically according to the temperature in the water tank or the air-conditioning load, ensuring sufficient supply of hot water and air-conditioning load 24 hours a day. When heating hot water, there will be no problem like a gas water heater that cannot satisfy multiple faucets at the same time. The problem of using hot water does not arise when electric water heaters have a small capacity and many people have to wait for bathing. Ready-to-use hot water, with large water output and stable water temperature, meeting all your expectations for hot water.
3. Save money
Since its power consumption is 1/4 of other heating, heating, and domestic hot water costs, it is equivalent to using the same amount of hot water or the same heating area. Using an air source heat pump, the electricity cost is only one-fourth of that of electric heating and heating. one. Calculated based on a family of 4, the normal hot water usage is about 200L/day. If it is heated by an electric water heater, the electricity bill will cost about 4 yuan/day, while the air source heat pump only costs about 1 yuan/day, which can be saved in a year. The electricity bill is about 1,000 yuan.
4. Green and environmentally friendly
Gas water heaters heat hot water by burning combustible gas, and at the same time emit large amounts of harmful waste gases such as carbon dioxide and sulfur dioxide. The air-source heat pump only transfers the heat in the surrounding air to the water, completely achieving zero emissions and having almost no impact on the environment. It is a truly environmentally friendly water heater.
5. Low carbon fashion
Today, when energy conservation and emission reduction have become the trend of the times, saving energy and reducing carbon emissions is the most fashionable way of life. As mentioned earlier, the air source heat pump uses the inverse Carnot principle to transfer the energy in the air to the water instead of directly heating it with electric heating elements. Therefore, its energy efficiency can reach 4 times that of an electric water heater, that is, it can heat the same amount of hot water. , the power consumption is equivalent to a quarter of that of an electric water heater, which greatly saves power consumption. 70% of China's electricity is generated by burning coal in thermal power plants. Saving electricity means reducing carbon emissions.
The above is some information about our low-temperature air source heat pump. I hope you can refer to it. If we need to purchase and use an air source heat pump in the future, we must choose a suitable air source heat pump to use. Low temperature air source heat pump is a good type of heat pump
