【摘要】 报道了一种应用于低温医疗的多元混合工质节流制冷机。文中建立了多元混合工质节流制冷热力循环的优化分析模型 ,包括多元混合工质选配与循环运行参数设计原则。同时 ,设计制作了一台样机 ,并采用两种混合工质进行了相关实验研究 ,分别取得了在 - 70°C有 2 0W和 - 12 0°C有 11W的制冷量的实验结果。结果表明 ,多元混合工质节流制冷机是一种非常有前途的低温冷冻治疗仪更多还原

【Abstract】 A mixed refrigerant J T refrigerator(MJTR)for cryosurgery is reported in this paper.The optimization model for this MJTR is established,including the principle of component selection and operating parameter optimization.Meanwhile,a prototype of the mixed refrigerant J T refrigerator for cryosurgery is made and tested.A cooling capacity of 11 W at -120 °C and another cooling capacity of 20 W at -70 °C with two mixtures are achieved.Because of its low cost,simplicity and reliability,the MJTR is a very good cooling source for cryosurgery.更多还原