The air-valve was compared with one-way tank, both of which are used for avoiding liquid column separation in the pipe.
计算结果表明，在局部凸起点附近加装单向调压塔更能较好地避免液柱分离的发生。
2
Heat preservation repairing technique for the tank by the vacuum powder heat insulation method in the airseparation device is presented, and related notable matters and key points are expounded.