Energy-saving and environment-friendly solar floor heating and hot water system for office building

The utility model relates to an energy-saving and environment-friendly solar floor heating and hot water system for an office building, wherein an air source heat pump unit is respectively connected with a heating hot water tank and a domestic hot water tank; the heating hot water tank is connected with a solar thermal collector array and the domestic hot water tank as well as a floor heating tail end; the floor heating tail end is positioned in the indoor floor layer of the office building; a heating circulating pump is arranged between the floor heating tail end and the heating hot water tank. The heating hot water tank is internally provided with a heat exchange coil pipe. The solar thermal collector array is formed by a plurality of flat-plate thermal collectors through serial and parallel connection structures. Aiming at the construction characteristics of the office building and energy utilization features of heating and hot water, the energy-saving and environment-friendly solar floor heating and hot water system achieves higher economical efficiency and energy utilization efficiency by utilizing low-grade solar hot water system assisted by an air source heat pump to realize high-efficient heating in winter and hot water supply all year around. The energy-saving and environment-friendly solar floor heating and hot water system has the benefits of being capable of improving solar energy utilization ratio and saving energy consumption under the heating and hot water demands of office buildings.