摘要
反气泡是产生于液体中并由一层气膜包裹液珠的特殊结构。影响反气泡稳定性的因素有温度、压强、电解质浓度、溶液黏度等,除此之外表面张力也是重要因素之一。通过实验发现,溶液表面张力的变化而变化的情况,当溶液的表面张力小于47 mN/m时,溶液开始产生反气泡;当溶液的表面张力在47～35 mN/m范围内时,反气泡稳定时间随表面张力减小而增大;当表面张力在35～34 mN/m范围内时,反气泡稳定时间随表面张力减小而减小;当表面张力小于34 mN/m时,反气泡稳定时间趋于稳定。
An anti-bubble is a special structure that is produced in liquid and is coated by a gas film. The lifetime of the anti-bubble is related to temperature, pressure, electrolyte concentration, viscosity and so on. Besides, surface tension of the solution is an important factor. According to the experiments, the lifetime of the anti-bubble changes along with the surface tension of the solution. When the surface tension of the solution σ is less than 47 mN/m, the anti-bubble could be generated in the solution. When the surface tension of the solution σ is in the range of 35 mN/m to 47 mN/m,the lifetime of the anti-bubble increases with the decreasing of the surface tension of the solution. When the surface tension of the solution σ is in the range of 34 mN/m to 35 mN/m, the lifetime of the anti-bubble decreases with the decreasing of the surface tension of the solution. When the surface tension of the solution σ is less than 34 mN/m, the lifetime of the anti-bubble is nearly stable.
作者
安骥
王鑫
何随龙
郑洪
AN Ji;WANG Xin;HE Sui-long;ZHENG Hong(Merchant Marine Collage, Shanghai Maritime University, Shanghai 201306, China)
出处
《液压气动与密封》
2019年第4期34-38,共5页
Hydraulics Pneumatics & Seals
关键词
反气泡
表面张力
稳定时间
影响
anti-bubble
surface tension
lifetime
influence
作者简介
安骥(1974-),男,山东济宁人,副教授,博士,从事船舶液压传动,现代检测与故障诊断技术和船舶安全管理的研究。
