How does a heat pump hot water storage tank use heat pump technology to extract heat from the environment and convert it into hot water?

The heat pump hot water storage tank uses heat pump technology to extract heat from the environment and convert it into hot water. It is an efficient and environmentally friendly way of energy utilization. The following is a detailed analysis of this process:

1. The basic principle of heat pump technology
Heat pump technology is an energy conversion technology based on the reverse Carnot cycle principle. It uses a small amount of high-grade energy (such as electricity) as a drive, and through the circulation of refrigerant, it realizes the transfer of heat from low-temperature heat sources (such as air, water or soil) to high-temperature heat sources (such as water in the storage tank). In this process, the heat pump consumes only a small amount of electricity to absorb a large amount of low-grade heat energy from the environment and convert it into high-grade heat energy, thereby realizing the production of hot water.

2. The working process of heat pump hot water storage tank
Evaporator heat absorption: The evaporator of the heat pump hot water storage tank is exposed to the air. When the refrigerant evaporates in the evaporator, it absorbs heat from the surrounding air, causing the refrigerant to change from liquid to gas. In this process, the evaporator plays the role of extracting heat from the environment.
Compressor work: The gaseous refrigerant that has absorbed heat is sucked into the compressor. After being compressed by the compressor, the pressure and temperature of the refrigerant increase, and it becomes a high-temperature and high-pressure gaseous refrigerant. The compressor is the core component of the heat pump system, which provides the power required for the refrigerant cycle.
Condenser heat release: After the high-temperature and high-pressure gaseous refrigerant enters the condenser, it exchanges heat with the water in the water storage tank. In this process, the refrigerant releases heat, which increases the water temperature, while cooling itself and condensing into a liquid. The condenser plays the role of transferring the heat in the refrigerant to the water.
Expansion valve throttling: When the liquid refrigerant passes through the expansion valve, the pressure and temperature are reduced, and it becomes a low-temperature and low-pressure liquid refrigerant. The function of the expansion valve is to control the flow and pressure of the refrigerant to ensure that the refrigerant can evaporate smoothly and absorb heat in the evaporator.
Reciprocating: The liquid refrigerant after throttling by the expansion valve enters the evaporator again to start a new round of circulation. In this process, the heat pump hot water storage tank continuously absorbs heat from the environment and converts it into the heat energy of hot water.

Heat pump hot water storage tanks achieve the goal of extracting heat from the environment and converting it into hot water through heat pump technology. This process is not only efficient and environmentally friendly, but also can significantly reduce energy consumption and carbon emissions. With the advancement of technology and the adjustment of energy policies, heat pump hot water storage tanks will play an increasingly important role in the future hot water supply market.