4DE150-4A型迷宫式活塞氧压机在调试及使用过程中出现二级排压偏高,停机检查,发现二级压力偏高是由于三、四级活塞与气缸内壁间隙太大,氧气通过间隙泄漏入三,四级活塞下的空腔。后经维修,将缸体与机体对中好,迷宫式活塞氧压机运转情况转入正常。图1表1。 4DE150-4A type labyrinth piston oxygen compressor in the process of debugging and the use of secondary discharge pressure is too high, stop checking and found that the secondary pressure is high due to three or four piston and cylinder wall gap is too large, oxygen through the gap Leak into the cavity of three or four piston. After maintenance, the cylinder body and body alignment, labyrinthine oxygen compressor into operation. Figure 1 Table 1.