The Analysis Between Cogeneration Heating System And Plant Heat Pump Heating System

This paper is based on the use of circulating cooling water, analyse the heat pump heating system which use circulating cooling water for low-temperature heat source consume the high energy, the same way of heating with CHP. In this paper, specific consumption analysis theory is used on the two heating system.At the first, three heating systems is similarity in theory,but in the strncture has very big difference. The method of evaluation of CHP are many, but in the apportionment about thermoelectric cannot achieve precise,and heat pump evaluation are in its specific equipment aspects of evaluation, including heating load of unit exergy loss as evaluation heat pump performance has scientific rationality, this article through simulation system, establish the heater of cogeneration units heating load of unit exergy loss and heat pump of comparison, the result show that the absorption heat pump has superiority.But, it has the limitations, it cannot evaluate the heating system.The model of CHP and the compression heat pump model of specific consumption analysis theory is adopted. The model of absorption heat pump was establish based on it.The analysis results about some 200MW unit three heating system show that the sbsorption heat pump heating system has must superiority.Based on the computational analysis of unit heat consumption, each link of the influence of heating system is analyzed. And by the example analysis of heat transfer heat happen link and heat transfer link.Aiming at three heating systems,some 300MW and 600MW units is analyzed and evaluated.The calculated model about the three heating system of 300MW and 600MW units which results show that the advantage of CHP and absorption heat pump heating system is weakening with the capacity is increasing. But the compression heat pump heating system contrary. Cross contrast is base on the 300MW CHP and 600MW absorption heat pump heating system, if we chose large units and absorption heating pump heating system. It can not only avild in heating amout limited,also can play a large unit superiority.