| 摘要 |
The present invention relates to a district heating system which has an absorption heat pump for increasing electricity and heat output. In the present invention, high-temperature water from a district heating supplier is used as recovery heat by supplying high-temperature water to an absorption heat pump regenerator. Low-temperature heating water from a district heating collector is supplied to an absorption heat pump absorber for a primary heat exchange with an absorption liquid supplied from the regenerator and it is secondly heat exchanged while passing through a condenser, thus increasing the temperature. The hot water temperature of an inlet of a DH economizer of a heat recovery steam generator or a heat-only boiler is increased and, as a result, the heat output can be increased. In addition, by using waste heat of cooling water for cooling the condenser of a turbine generator as a heat source, the temperature of cooling water is lowered while passing an evaporator of the absorption heat pump, and by using the cooling water with lowered temperature as cooling water for the condenser, the efficiency of the turbine generator is improved as the temperature of the condenser is lowered, and, therefore, electricity output can be increased. |
