High-efficiency steam type lithium bromide double-effect absorption multifunctional cold-hot water unit

The invention relates to the technical field of utilization and energy reservation of low-temperature afterheat, waste heat and clean energy in heat supply engineering. In a high-efficiency steam type lithium bromide double-effect absorption multifunctional cold-hot water unit, a calorifier is arranged in the unit; a connecting pipe is arranged between the calorifier and a condensate outlet of a low-temperature regenerator, and a valve is arranged on the pipeline; a connecting pipe is arranged between the top of the calorifier and an upper cylinder consisting of a condenser and the low-temperature regenerator, and a valve is arranged on the pipeline; a connecting pipeline is arranged between a high-temperature regenerator and the calorifier; and a connecting pipeline is arranged between the condenser and an absorber, and a valve is arranged on the pipeline. The refrigerating, heating and independent supply of sanitary hot water, as well as any combined use of the three purposes can berealized by a control sys