Air compressor heat recycling and water chilling unit combined refrigerating and heating system

The invention discloses an air compressor heat recycling and water chilling unit combined refrigerating and heating system which comprises a cooling tower, a screw type water chilling unit, a heat recycling water tank and a heat-insulation water tank. The cooling tower, the screw type water chilling unit, the heat recycling water tank and the heat-insulation water tank are sequentially connected with one another, the cooling tower is communicated with the screw type water chilling unit via bidirectional convection pipelines, the screw type water chilling unit is communicated with the heat recycling water tank via bidirectional convection pipelines, and the heat recycling water tank is communicated with the heat-insulation water tank via bidirectional convection pipelines; a heat recycling machine of an air compressor is communicated with the heat recycling water tank via bidirectional convection pipelines; a water outlet of the heat-insulation water tank is connected with a fan coil and a water supply opening of a hot-water consumption end by pipelines, a water outlet of the fan coil is connected with a return water opening of the heat recycling water tank by a pipeline, and a water outlet of the hot-water consumption end is connected with a return water opening of the heat-insulation water tank by a pipeline. The air compressor heat recycling and water chilling unit combined refrigerating and heating system has the advantages that waste heat recycled by the heat recycling machine can be applied to air conditioning systems or production and domestic water, accordingly, environmental pollution due to waste heat emission of screw compressor units can be prevented, and a large quantity of energy can be prevented from being consumed by running of air conditioners and the production and domestic water.