Design of Waste Heat Recovery Unit with Lithium Bromide Absorption
Aiming at recovery and utilization of low-temperature waste heat in nuclear power plants,a lithium bromide absorption waste heat recovery unit was designed by combining seawater desalination technology with the centralized supply technology of cogeneration based on absorption heat exchange.The unit is mainly composed of evaporator,absorber,generator,condenser,solution heat exchanger,throttling device,solution pump,refrigerant pump and so on.Verification analysis showed that:the unit can effectively recover the waste heat of high temperature seawater,and be used for desalination of seawater;under the premise of the required heat of 28 784 kW,according to the annual use of 7 200 h calculation,the annual waste heat recovery of seawater is about 280 000 GJ,and annual fresh water production is about 2 160 000 t,reducing the impact on the ecological environment and greatly improving the economic benefits.Therefore,the unit can provide a good reference for the optimization design of lithium bromide absorption heat pump unit.
lithium bromide absorptionwaste heat recoveryseawater desalinationenergy conservation and environmental protection
万方数据
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