AN AIR CONDITIONING SYSTEM TAKING THE GROUND AS A HEAT SOURCE WITH HEAT PUMP

摘要

An air conditioning system taking the ground as a heat source with heat pump comprises a heat-collected well, a heat pump and a user side heat exchanger coil. There is a water supply pipe and a water return pipe in the heat-collected well , and a fluid distributor is disposed on the upside of the heat-collected well and a fluid collector on the downside of the heat-collected well. There is a water return chamber on the top of the fluid distributor, and there is a water-collected chamber under the fluid collector, a lot of pebbles are filled between the fluid distributor and the fluid collector; the heat pump comprises a first evaporator, a first compressor, a first condenser and a first expansion valve, an evaporation-condensation unit is connected in parallel with the loop that is between the first evaporator, the first compressor and the first expansion valve. The ¡first evaporator is coupled with a heat release coil, the first condenser is coupled with the user side heat exchanger coil. The temperature is raised twice collectively by the evaporation-condensation unit and the first heat pump, so the application range of low otential energy is broadened. In the case of different geological structure, more heat can be extracted from the soil by means of the system, and it is possible to widely utilize all kinds of the soil to gain the heat.