摘要
考察了变压器油的流速对变压器故障气体在陶瓷-Teflon 2400复合膜中的透过特性,并对溶解态气体渗透和气态渗透两种情况进行了对比.当油的流速由250mL/min增加到750mL/min时,H2和CO的平衡时间缩短约30%,C2烃的平衡时间变化较小,说明气体在油中扩散过程对油气分离有一定影响.与溶解态渗透过程中C2烃先达到平衡不同,气态渗透过程中H2先于C2烃达到平衡.红外光谱表明经变压器油浸泡的Teflon AF2400膜中溶解吸收了微量变压器油,形成了类似支撑液膜结构,各种气体在油中的溶解特性决定了它们在变压器油气分离过程中的透过特性.
The effect of transformer oil flow rate on the permeation properties of fault gases in the ceramic/ Teflon-AF2400 composite membrane was studied and permeation characteristics of the fault gases in the dissolved state and the gas state were compared. When the oil flow rate speeded up from 250 mL/min to 750 mL/min, equilibrium time of H2 and CO reduced by about 30%, while that of C2 hydrocarbons had little change, which indicated that the gas diffusion in the oil somewhat affected the oil-gas separation. The C2 hydrocarbons first reached permeation equilibrium in the dissolve state, wheras H2 first reached permeation equilibrium in the gas state. The FTIR results indicated that after immersion in the transform- er oil, the Teflon AF2400 membrane absorbed some transformer oil that formed a structure similar to supported liquid membrane. The solubility of the gases in the oil determined their permeation characteristics during the transformer oil-gas separation.
出处
《膜科学与技术》
CAS
CSCD
北大核心
2012年第5期107-111,共5页
Membrane Science and Technology
