Thermal Economy Analysis Of Heat Pump Heating Tecbhnology By Heat And Fower Generation

Coal-fired power plants in the running process will inevitably produce a lot of low temperature of cooling water,due to its low taste,it is difficult to be used for power generation,generally direct heat to the atmosphere,but the content is huge,if can effectively on this part of the energy recycling,energy saving effect is obvious.In terms of heat and power generation,the absorption heat pump technology can effectively increase the amount of energy in this part of energy to the total heating amount.And set up the absorption heat pump in heat exchange station,but in the case of can not use other available,slash a net return water temperature,reducing a mesh network construction investment and circulating water pump power consumption,a return water temperature is lower for the extraction of plant side of low temperature heat source to create more favorable conditions.In this paper,the thermal dissipation coefficient method and the free path method are introduced to calculate the influence of the heat consumption of the unit under different heating conditions.In a 330 mw unit as an example,calculates the heating under the condition of absorption heat pump in various heat exchanger under the condition of temperature as the design value of import and export,all the parameters of the state point,as well as the main heat exchanger heat transfer area.And compared with traditional extraction heat supply.Matlab programming calculation in this paper,for the first kind of absorption heat pump and some 330 WM heating unit of steam turbine unit of numerical simulation of the steam turbine under the different extraction conditions of variable condition calculation,the mathematical model of absorption heat pump is developed in detail,and by changing the extraction pressure and extraction,analysis and comparison the difference between heat pump heating and conventional heating.The heat economy of two heating modes is calculated by heat and heat dissipation coefficient respectively.It provides theoretical basis for the application of absorption heat pump.