CO2 Air Source Heat Pump Heating Technology CO2 air source heat pump heating technology has the characteristics of strong adaptability to outdoor temperature in cold areas and high outlet water temperature. It has a high heating coefficient under the condition of large temperature difference between supply and return water. Compared with the traditional Freon refrigerant heat pump, the CO2 heat pump has an outlet temperature of more than 70°C to meet the needs of various radiators and achieve heating and domestic hot water supply. Main Specifications. The nominal working condition (outdoor dry bulb temperature 7℃) reaches the hot water inlet/outlet temperature 50℃/70℃, and the COP is 2.46. Low temperature working condition (outdoor dry bulb temperature -20℃) reaches hot water inlet/outlet temperature 50℃/70℃, COP reaches 1.66. energy saving effect. Compared with oil-fired boilers, gas-fired boilers, electric boilers and other heating equipment, the energy saving rate is more than 50%. Application field. Used in the construction industry, including civil buildings, office buildings, commercial buildings, science, education, culture, public health and other public buildings and residential buildings, centralized or distributed heating and domestic hot water.
Technology Application Case 1 The total heating area of an office building is 8640 square meters. It is divided into two buildings: a new building and an old building. The new building has a 7-story frame structure, the old building has a 3-story brick-concrete structure, and the original heating source is a coal-fired boiler. During the transformation process, the project selected 10 CO2 air source heat pump heating units to replace the coal-fired boilers, and used circulating pumps, water softeners and constant pressure devices. The project has a total investment of 1.81 million yuan, energy saving of 128tce, annual carbon emission reduction of 301 tons, and annual energy saving economic benefit of about 280,000 yuan.
Technology Application Case 2 A railway section is equipped with a CO2 heat pump heating unit to replace the original traditional heating equipment, involving a total of 5 stations of about 10,000 square meters. The CO2 air source heat pump heating unit meets the heating requirements put forward by the user. It can still operate efficiently and stably in a low-temperature environment of minus 15℃, and the outlet temperature can reach above 65℃. After the renovation, the monitoring results of the heating table at one of the stations of the railway section showed that the average indoor temperature was steadily controlled at 21 to 23°C. Compared with the oil-fired hot water boiler, the economic cost was saved by RMB 414,700/134 days, saving energy 86tce, 227 tons of carbon emission reduction.
