【摘要】 为解决热泵烘干系统在不同工况下制冷剂流量不稳定，在工程上调节困难，在仿真上结果容易不收敛的问题，提出了一种新型并联双蒸发器联合运行仿真模型。针对这一模型，采用新的模拟方式，由入口参数求出口参数，先后建立并联双蒸发器的数学模型和仿真程序。重点研究了热泵烘干系统中并联双蒸发器模拟平衡计算的程序编译和流量修正算法。研究结果表明，并联双蒸发器联合运行仿真模型可以求解两个不同工况下的蒸发器中制冷剂的体积流量的分配及压降变化。研究结果在工程实践上对并联蒸发器的热泵烘干系统的设计给予一定的指导作用。更多还原

【Abstract】 In order to solve the unstable refrigerant flow in the heat pump drying system under different working conditions.And it is difficult to adjust it in engineering and the result is not stable in simulation. A new simulation model of parallel double evaporator joint operation is presented. For this model, the entry parameter is used to solve the exit parameter. The mathematical model and simulation program of single evaporator and parallel double evaporator are established successively. In heat pump drying system, the flow correction algorithm of parallel double evaporator simulation and the programming of evaporator are the key research contents. The results show that the simulation model of parallel double evaporator can solve the volume flow rate and pressure drop of refrigerant in evaporator under different working conditions. The research results can provide some guidance for the design of heat pump drying system with parallel evaporator in engineering practice.更多还原