将ＬｉＢｒ吸收式热泵应用于多效蒸发法（ＭＥＤ）海水淡化工艺流程是海水淡化领域的一个新的设计概念。本文对这种热力循环进行了描述和论证，证明此工艺流程技术上是可行的。它利用低温乏汽的热能，使供给ＭＥＤ流程的蒸汽量高于热源提供的初始蒸汽量。蒸汽量变化的理论最大比值为１．３０１，给出的理论值可供经济分析作参考。对于核供热反应堆用于海水淡化提供了依据。 Application of LiBr Absorption Heat Pump to Multi-Effect Evaporation (MED) Desalination process is a new design concept in the field of desalination. This paper describes and demonstrates this thermodynamic cycle, demonstrating that this process is technically feasible. It uses the thermal energy of low-temperature steam-depleted steam to make the steam supply to the MED process higher than the initial steam supply from the heat source. The theoretical maximum ratio of the change of steam volume is 1.301, and the theoretical value given is available for economic analysis as a reference. For nuclear heating reactors for seawater desalination provide the basis.