Generally speaking, high-temperature heat pumps refer to heat pumps that can achieve a heating outlet water temperature of 85 degrees Celsius or higher, while heat pumps that achieve a heating outlet water temperature of 65 degrees Celsius are called medium-temperature heat pumps or medium-high temperature heat pumps.
In the 1980s, Japan launched the Super Heat Pump Project, developing four types of heat pumps, including medium-high temperature heat pumps that utilize 45-degree Celsius waste water to produce a heating outlet water temperature of 85 degrees Celsius, and high-temperature heat pumps that utilize 80-degree Celsius waste water to produce 150-degree Celsius steam.
Europe has developed high-temperature heat pumps using improved centrifugal compressor technology, employing R134a refrigerant and a three-stage centrifugal compression mode, achieving a heating outlet water temperature of 85 degrees Celsius.
In my country, some heat pump companies have successfully developed and applied 150-degree Celsius high-temperature heat pumps, which can be used to replace boilers.
