利用吸收式热泵回收电厂循环水余热的方案研究

Program of Research Recovering the Waste Heat of Power Plant Circulating Water by Using the Absorption Heat Pump

在电厂的生产过程中,汽轮机排汽会产生大量的低温余热,这些余热伴随循环水被带到冷却塔进行冷却,造成了大量余热的浪费,同时也造成了一定量的汽水损失。吸收式热泵具有回收低温热量的特点,可以对这些余热加以吸收利用。以某300 MW热电机组为例,对利用吸收式热泵回收这些低温余热进行了可行性分析,认为吸收式热泵能够回收电厂循环水的余热,同时减少污染物的排放,具有显著的经济、社会与环境效益。

In the production process of power plant, The turbine exhaust produces large amounts of low temperature waste heat, This part of waste heat is brought to the cooling tower for cooling accompanied with circulating water. This part of waste heat is simply discharged into the atmosphere, also caused the loss of a certain amount of water. The absorption heat pump has the characteristics of recovering the low temperature heat. This part of waste heat waste heat can be absorbed by using the absorption heat pump. Take a 300 MW thermal power plant for example, carried out a feasibility analysis on the use of absorption heat pump recovery of these low temperature waste heat. The absorption heat pump can recycle the waste heat of circulating water while reducing the emission of pollu- tion, with very significant economic, social and environmental benefits.