不同结构形式自携式潜水呼吸器一级减压器供气性能研究  

Gas supply performance of first⁃stage pressure reducer of self⁃contained diving apparatus with different structures

作　　者：狄帅 顾靖华 柳初萌 罗瑞豪 Di Shuai;Gu Jinghua;Liu Chumeng;Luo Ruihao(Naval Medical Center,Naval Medical University,Shanghai 200433,China)

机构地区：[1]海军军医大学海军特色医学中心,上海200433

出　　处：《海军医学杂志》2023年第11期1103-1106,共4页Journal of Navy Medicine

摘　　要：目的量化并对比平衡活塞式和平衡隔膜式一级减压器的供气性能,为建立潜水呼吸器评价体系提供参考数据。方法通过无人性能试验,获取了不同输入压力下15型一级减压器的供气性能试验数据,并从动态压降、动静压差和最大供气流量3个方面进行了统计学分析和对比。结果平衡活塞式和平衡隔膜式一级减压器在动态压降、动静压差和最大供气流量方面比较差异均有统计学意义(P<0.05)。建立的平衡活塞式一级减压器最大供气流量线性回归模型能解释最大供气流量变化情况的92.3%。结论平衡活塞式一级减压器在动态压降、动静压差和最大供气流量方面均明显优于平衡隔膜式一级减压器,但平衡隔膜式一级减压器的内部隔离性使其更适合在寒冷水域或污浊水域使用。Objective To quantitatively compare the gas supply performance between balanced piston and balanced diaphragm first‑stage pressure reducers,so as to provide reference data for establishing a diving apparatus evaluation system.Methods The gas supply performance test data of the type 15 first‑stage pressure reducer under different input pressures were obtained through the unmanned performance test.Dynamic pressure drop,dynamic and static pressure difference,and maximum gassupply flow rate were compared.Results There were statistical differences in dynamic pressure drop,dynamic and static pressure difference,and maximum gas supply flow rate between the 2 kinds of first‑stage pressure reducers.The maximum supply flow rate linear regression model of balanced piston first‑stage pressure reducers could explain 92.3%of the changes of the maximum supply flow.Conclusion The balanced piston first‑stage pressure reducer is superior to the balanced diaphragm first‑stage pressure reducer in dynamic pressure drop,dynamic and static pressure difference,and maximum air supply flow rate,but the internal isolation of the balanced diaphragm first‑stage pressure reducer makes it more suitable for use in cold or dirty waters.

关 键 词：潜水呼吸器 一级减压器 平衡活塞式 平衡隔膜式 供气流量 

分 类 号：P754.3[天文地球—海洋科学]