Solar energy is emerging as a resilient and environmentally friendly energy source. Utilizing heat storage devices to capture solar energy not only reduces carbon emissions but also aligns with the broader goal of energy conservation. In the effort to optimize the heat transfer efficiency of trough solar heat storage devices, a comprehensive investigation was conducted. This study involved the systematic design and analysis of twelve distinct structures, each characterized by varying contact angles and eccentricities. It was observed that using a substantial contact angle of Δ=0.2R (θ=150°) induces a stable disturbance within the pipeline, thereby significantly enhancing the overall heat transfer performance. Building on this observation, seven different eccentric structures were systematically designed to further improve the heat exchange performance of the pipeline. The findings indicate that, particularly at high Reynolds numbers, the implementation of an eccentric structure markedly enhances the heat transfer performance of the pipeline. Additionally, when Δ=0.2R, it effectively contributes to the improvement in the efficiency of heat storage devices.