Optimized energy-saving method of steam condensate heat energy recovery system

The invention discloses an optimized energy-saving method of a steam condensate heat energy recovery system, which comprises the following steps: carrying out heat recovery conversion on steam condensate or hot water with a certain heat value in a production system through a lithium bromide unit to prepare 3-9 DEG C chilled water required in the process, heating a lithium bromide dilute solution by the steam condensate, and then sending back to a desalted water station, the temperature of the steam condensate or the hot water is greater than or equal to 90 DEG C. The steam condensate heat energy recovery system is optimized to save energy, heat recovery and mutual conversion between energy are completed, the process structure and energy consumption balance are optimized, the energy consumption of public works is reduced, the operation cost is saved, and the unit consumption of products is reduced. 本发明公开了一种蒸汽凝液热能回收系统的优化节能方法，将生产系统中具有一定热量值的蒸汽凝液或热水通过溴化锂机组进行热回收转化，制取工艺中需要的3～9℃冷冻水，所述蒸汽凝液先加热溴化锂稀溶液然后再被送回脱盐水站，所述蒸汽凝液或热水