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在过程集成原理的基础上,分析了各种热泵的技术特性,指出各种形式热泵最适宜的总复合曲线形状,并导出了一个判断工业热泵经济上可行的指标———临界COP.它是输入能量价格与热价之比γ、设备价格与热价之比λ及投资回收期PBP的函数.通过分析各种形式热泵的COP,crPBP的关系曲线,讨论了γ、PBP、λ对该指标的影响,认为γ对COP的影响最大,PBP次之,λ的影响最小;机械式蒸汽再压缩式热泵及第2类吸收式热泵经济性较好.当γ<3时,电动压缩式热泵也可采用,因第1类吸收式热泵的经济性受到投资回收期的限制而不宜采用
Based on the principle of process integration, the technical characteristics of various heat pumps are analyzed, the most suitable total compound curve shape of various forms of heat pumps is pointed out, and an economically feasible indicator judging industrial heat pump --- critical COP is derived Enter the ratio of energy price to heat price γ, the ratio of equipment price to heat price λ, and the return on investment (PBP) function.By analyzing the relationship curves of COP and crPBP of various forms of heat pumps, the influence of γ, PBP and λ on the index , The influence of γ on COP is the largest, followed by PBP and λ is the least, and the mechanical vapor recompression heat pump and the second type absorption heat pump are more economical.When γ <3, the electric compression heat pump Can be used because of the first type of absorption heat pump economy by the investment payback period of the restrictions should not be used