氢氮检漏代替氦检的可行性分析

Feasibility analysis of hydrogen and nitrogen leak detection instead of helium detection

氦检是一种较为成熟的检漏技术,具有超高的检测精度,在空调行业两器板块中广泛应用。但是受氦气资源的限制,一种可替代氦检的低成本的氢氮混合气体检漏技术已经在制冷行业内小范围应用。通过对比其各自的经济价值,阐述现有氢氮检漏设备概况,理论分析两种气体的泄漏率之间的关系,并将泄漏件在真空箱中进行现场验证,对其应用的可行性进行综合分析,结论是真空箱氢氮检测具有可行性。

Helium detection is a relatively mature leak detection technology,with ultra-high detection accuracy,and is widely used in the evaporator and condenser of the air conditioning industry.However,limited by helium resources,a low-cost hydrogen-nitrogen mixed gas leak detection technology that can replace helium detection has been applied in a small range in the refrigeration industry.By comparing their respective economic values,describes the overview of the existing hydrogen and nitrogen leak detection equipment,theoretically analyze the relationship between the leakage rates of the two gases,and make leaking test in the vacuum box,integrated analysis the feasibility application,the result is hydrogen and nitrogen detection is feasible in the vacuum box.