The invention discloses a water-saving efficient injection
system for water-source heat pumps. The water-saving efficient injection
system is structurally characterized in that one end of a
water supply pump of the heat pumps is connected with a water mixer by a pipeline, the other end of the
water supply pump is connected with filters by pipelines, the filters are positioned on the upper portion of a water distributing and treating device, and the water distributing and treating device is connected with return water wells by pipelines; the water mixer, a
cyclone sand remover and submersible pumps are sequentially serially connected onto the same pipeline, the submersible pumps are positioned in pumping wells, the water mixer is connected with a port a of a water-source
heat pump unit, a pipeline is connected between a port b of the water-source
heat pump unit and the top of the water distributing and treating device, the port b and the port a of the water-source
heat pump unit are positioned on the same side, a port c and a port d of the water-source heat pump unit are connected with a fan coil by pipelines, and the port c and the port d of the water-source heat pump unit are opposite to the port a. The water-saving efficient injection
system has the advantages that water is led to the water distributing and treating device via the corresponding pipeline after being utilized by the water-source heat pumps, and can be injected to the return water wells and supplemented to the water-source heat pump unit via the water distributing and treating device; the water-saving efficient injection system is high in injection efficiency, the
utilization rate of energy contained in the water can be increased, water resource exploitation can be reduced, and the initial investment and the
operating cost can be decreased.