Working principle of water source heat pump

Water source heat pump is an air conditioning and heating system that utilizes water bodies (such as groundwater, surface water, or industrial wastewater) as heat or cold sources. It extracts or releases heat from water through heat pump technology to achieve cooling or heating functions.

The water source heat pump utilizes the principle of reverse Carnot cycle to transfer heat from a low-temperature heat source (such as water) to a high-temperature end (indoors) or in the opposite direction through the heat transfer of refrigerant in different states.

1. Winter heating mode

The water source side heat exchanger absorbs heat from the water body (the temperature of water is relatively stable compared to air, usually between 10-25 ° C).

The absorbed heat is transferred to the compressor through the refrigerant.

The compressor compresses the refrigerant, causing its temperature to rise and enter the user side heat exchanger.

The user side heat exchanger releases the heat of high-temperature refrigerant into the room through heat exchange for heating purposes.

The cooled refrigerant flows through the throttling device to reduce pressure, and then returns to the water source side heat exchanger for repeated circulation.

2. Summer cooling mode

The user side heat exchanger absorbs heat from indoors and carries it to the water source side through the refrigerant.

The compressor pressurizes the refrigerant, producing high-temperature and high-pressure gas.

The heat exchanger on the water source side releases the heat from the refrigerant into the water, and the refrigerant is circulated after cooling down.

Indoor heat is transferred to water bodies through refrigerants to achieve cooling.