Heat supply system for recovering low-quality energy

The utility model discloses a heat supply system for recovering low-quality energy, which comprises a heat supply network circulating system, a steam turbine and a flue gas heat exchange system, and the heat supply network circulating system comprises a condenser and an absorption heat pump which are sequentially arranged in the flowing direction of heat supply network water supply from a user water return end to a water inlet end; the steam turbine comprises a heat supply network circulation branch used for exchanging heat with the condenser, and the smoke heat exchange system is used for exchanging heat with the absorption heat pump. According to the heat supply system for recycling the low-quality energy, the steam condenser and the absorption heat pump are arranged, waste steam heat, flue gas waste heat and water vapor latent heat are recycled at the same time, and then recycling of the low-quality energy is achieved. 本实用新型公开了一种回收低质能源的供热系统，包括热网循环系统、汽轮机及烟气热交换系统，热网循环系统包括热网供水由用户回水端至用于进水端流动方向依次设置的凝汽器、吸收式热泵，汽轮