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某水库清澈如镜,装了一台6K-18水泵,开始水泵工作正常。但运行一段时间后,水泵出水逐渐减少,最后竟不出水了。机手及时检查了水泵各部分,没有发现问题,装好后试抽水,满管出水,但时间不长,水又慢慢地少了,最后没有了。真是奇怪!难道空气会不经过任何通道而飞进吸水管或水泵里吗?为了加强密封空气,不让空气进入吸水管或泵内,又再次检查了填料函并将其螺母拧了几圈、将吸水管各接头及漏气可疑点全部用粘胶泥封起来,结果开泵一试还是老样子。原因到底在哪里呢?最后决定将底阀拿上来
A reservoir as clear as a mirror, installed a 6K-18 pumps, pumps began to work properly. However, after running for a period of time, the pump water gradually reduced, finally did not water. Hand pump promptly checked the various parts of the pump, did not find the problem, installed after the test pumping, pipe full of water, but time is not long, the water is slowly less, and finally gone. Is it strange that the air will fly into the suction pipe or the water pump without any passage? In order to strengthen the seal air, do not let the air into the suction pipe or pump, again check the stuffing box and screw a few times its nut, The suction pipe joints and leaks suspicious points all sealed with glue mud, the results of the pump is still the same old test. The reason why in the end? Finally decided to pick up the end valve