Principle Introduction of CO2 Heat Pump Heating System
The compressor sucks low-temperature and low-pressure gas carbon
dioxide refrigerant from the evaporator, and compresses the carbon
dioxide refrigerant into a high-temperature and high-pressure
supercritical fluid through work. The high-temperature and
high-pressure supercritical fluid enters the gas cooler to exchange
heat with water, and is cooled in the gas cooler. The high-pressure
fluid releases a lot of heat, and the water absorbs the heat
released and the temperature continues to rise. After the
high-pressure fluid is throttled and depressurized by the expansion
valve, in the evaporator, the fan absorbs the heat in the
surrounding air and evaporates into low-pressure gas, which is
sucked into the compressor and compressed, so that it is repeatedly
circulated to provide hot water.
Features of CO2 Heat Pump Heating System
Natural environmental protection refrigerant: CO2 refrigerant, ODP
is 0, GWP is 1, no pollution to the environment, non-toxic,
non-flammable;
High water outlet temperature: the supply/return water temperature
can reach 65°C/45°C, and the highest outlet water temperature can
reach above 75°C, suitable for radiators;
Excellent low-temperature performance: at -35°C ambient
temperature, heating is still normal;
High efficiency: The heating performance COP can reach 1.8 at an
ambient temperature of -30°C;
Wide range of application: it can work normally in the ambient
temperature range of -35℃~20℃, suitable for most cold regions in
northern my country.
Monobloc CO2 Heat Pump Heating System | ||||
Unit type | SJKRS-28 II/C | SJKRS-36II/C | SJKRS-55 II/C | |
Specifications | 7.5HP | 10HP | 15HP | |
Power supply | Three-phase five-wire380V/50Hz | |||
Heating mode | Direct heat/cycle type | |||
Standard working condition | Heating capacity( kw ) | 27.5 | 36.7 | 55.1 |
Input Power(kW) | 6.1 | 8.2 | 13.7 | |
COP | 4.5 | 4.5 | 4.5 | |
Hot Water flow(m³/h) | 0.59 | 0.79 | 1.18 | |
High temperature condition | Heating capacity kw ) | 23.9 | 28.5 | 51.5 |
Input Power(kW) | 7.5 | 8.9 | 16.1 | |
COP | 3.2 | 3.2 | 3.2 | |
Hot Water flow(m³/h) | 0.27 | 0.33 | 0.59 | |
Low temperature condition | Heating capacity( kw ) | 17.3 | 21.4 | 34.8 |
Input Power(kW) | 6.2 | 7.6 | 12.4 | |
COP | 2.8 | 2.8 | 2.8 | |
Hot Water flow(m³/h) | 0.32 | 0.4 | 0.65 | |
Components Information | Size of water pipe joint | DN20 | DN25 | |
Water heat exchanger | Plate or sleeve heat exchanger | |||
Air Heat Exchanger | Aluminum Fin for copper tube | |||
compressor type | Semi-closed reciprocating | |||
Operation Panel | Color touch screen | |||
Maximum outlet temperature(℃) | 90℃ | |||
Refrigerants | R744 (CO2 ) | |||
Design pressure(MPa) | High side 15, low side 8 | |||
Dimensions (L*W*H mm) | 1450x950x1450 | 1600x950x1500 | 1850x1150x1900 | |
Noise (dB) | 56 | 59 | 62 | |
Weight(kg) | 550 | 660 | 780 | |
SCOPE of use | Feed water temperature(℃) | 5~ 40 | ||
Feed water pressure | 0.05~ 0.4 | |||
Effluent temperature(℃) | 55~ 90 | |||
Maximum flow | 1.2 | 1.5 | 2.4 | |
Ambient temperature(℃) | ’-20~43
|