One approach to realizing distributed quantum computing is to interconnect multiple quantum processing units via photonic quantum communication. To this end, it is essential to analyze in detail how various realistic constraints affect quantum interconnects. In this study, we designed and implemented a discrete-event simulator using SimPy to evaluate the throughput, latency, and communication quality of photonic quantum communication. Specifically, we modeled physical phenomena such as fiber loss, interference success probability, and detector response. After that, we conducted simulations in scenarios involving Bell state swapping, which is a fundamental unit of quantum communication. Verification of the system's behavior showed qualitative consistency with quantum communication experiments. These results suggest that the simulator developed in this work can serve as a foundation for building fault-tolerant distributed quantum computer simulators.