Analysis of heating,power generation and peak shaving performance of solar assisted cogeneration units
In view of the increasingly serious problem of power grid peak regulation caused by the instability of new energy,combined with the relatively mature photo-coal complementary power generation technology and the multi-heat source combined heating peak shaving system,the light-coal mixed heating power generation system was designed to make the cogeneration unit have a certain peak regulation capacity.Based on the actual operating conditions of the heating unit and the premise of ensuring the heating load,the coupling mode of the solar-assisted dual-engine cogeneration unit was analyzed,and the peak regulation performance of the two-engine was compared before and after coupling.The results show that,a dynamic throttle valve is installed on the pipeline between the condenser outlet and the heat exchanger of the solar collector system,and the operation mode of the auxiliary heating unit of the solar collector system can be changed,which can realize flexible operation of the integrated system of power generation,heating and peak regulation.Among them,the solar thermal collection system is only used for supplementary heating,the peak regulation capacity ratio is 0.76,and the ratio of solar auxiliary double-heating supply before and after peak regulation capacity is 0.55.The No.l unit which is assisted by solar energy to bear the maximum heating load has the best performance in peak regulation capacity and peak regulation compensation.
solar energysolar thermal power generationcombined heat and powerpeak shaving
万方数据
维普
