石油高校建环专业开设气体液化实验的探讨

Study of Gas Liquefaction Experiment for the Building Environment Specialty

从我校建环专业的培养方案及目标出发,分析了石油高校建环专业开设气体液化实验的必要性。首先探讨了气体液化实验平台的建设方案。经过对比,液化流程选用单级混合制冷循环;从安全和经济性方面考虑,制冷剂选用R134a、R23和R14混合组分,液化介质选用CO2;考虑到实验室的实际情况,流程采用较高温区的氟利昂相变制冷工艺。接着又从安全、费用、占地、耗时等方面,对本科教学引进气体液化实验的可行性进行了分析。最后探讨了在该气体液化实验台上拟开设的实验项目。气体液化实验的开设,完善了石油高校建环专业的实验项目,通过引导学生独立设计实验,加深了学生对气体液化知识的理解,培养了学生的创新意识和动手能力,也向建设综合性和设计性实验的目标更迈进了一步。

It is necessary to introduce the gas liquefaction experiment into the laboratory for the building environment and energy application engineering specialty of Petroleum Universities,according to the training program and goal of our college.Above all,the development scheme of gas liquefaction experiment platform is studied.The liquefaction flow of single mixed refrigerant cycle is used.On the basis of the safety and economy,the mixture of R134a,R23 and R14 is used for the refrigerant,and CO2 is the liquefied object.The phase-change refrigeration technology of Freon at the higher temperature zone is applied for the liquefaction flow according to actual conditions of the laboratory.Then,the feasibility of gas liquefaction experiment is analyzed for the undergraduate education.Some influencing factors are also discussed,such as the safety and expense of the experiment,the area of the experiment platform,and the teaching time.Finally,the experimental projects of the correlative gas liquefaction are discussed on the platform,which will improve the experimental projects for building environment and energy application engineering of Petroleum University.The teachers may guide students to design the experiment independently,which can enhance their understanding of gas liquefaction,and cultivate their innovation consciousness and practical ability.Also,it conforms to realize the goal that is construction of the comprehensive and design experiment.