Comprehensive utilization device of waste steam latent heat of turbine

The utility model relates to a low temperature exhaust heat recycling device, in particular to a comprehensive utilization device of waste steam latent heat of a turbine, which comprises the turbine, a steam absorption heat pump group, a hot water absorption heat pump group, a screw expander generating device and a heat network heat exchanger. A waste steam pipeline and a steam extraction pipeline of the turbine are respectively connected with the steam absorption heat pump group, a high-temperature water main pipeline of the steam absorption heat pump group is divided into three branches, a first branch is connected with the heat network heat exchanger, a second branch is connected with the hot water absorption heat pump group, and a third branch is connected with the screw expander generating device. A low-temperature water pipeline of the heat network heat exchanger, a low-temperature water pipeline of the hot water absorption heat pump group and a low-temperature water pipeline of the screw expander generating device are respectively connected with a low-temperature water main pipeline of the steam absorption heat pump group. The comprehensive utilization device of the waste steam latent heat of the turbine achieves comprehensive utilization of heat-power-cool trigeneration, reduces cold source loss of a system and improves cycle efficiency of a power station and generating yield.