国产成人精品免费视频动漫_鲁啊鲁在线视频免费播放_欧美成a人片免费看久久_久久国产精品亚洲一区二区_美国免费三片在线观看_亚洲国产成a人v在线_欧美日韩国产综合在线_精品免费久久久久久影院

Leak detection method of vacuum equipment

Release date: August 31, 2011 reading times: 35

During the use of vacuum equipment, if it is found that the vacuum cannot be pumped up or the vacuum degree cannot be maintained for a certain period of time, it may be the leakage of pipeline and connecting parts or the failure of vacuum pump.For leakage, a simple inspection method is to fill the containers and pipes with gas, ensure that there are micro positive pressure inside them, use small sprinkler for watering flowers, and then apply detergent, laundry powder and soap solution, then spray to each part of the pipeline and container. At this time, if a certain part froth, it is indicated that this part is a leak point, then it is disposed to eliminate leakage.Until a vacuum can be drawn.