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2018-10-28View Original

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Reply #22018-10-28
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Reply #32018-10-30
"유입 오일 밸브와 예열 밸브를 닫고,,
Reply #42018-10-30
pérdida
Reply #52018-10-31
user pérdida
Reply #62018-11-01
机封仓的压力,只能是向厂家咨询一下,一般都是经验数值,如果是单级悬臂式离心泵,一般采用入口压力+0.1MPa左右
Reply #72018-11-01
好的 谢谢 回头问一下厂家的推荐压力
Reply #82018-11-01
把备用泵的出入口阀、预热线阀关闭,把封油注入切断,看一下封油注入(PLAN32)压力表的位置,是否可以测到机泵介质侧的压力。如果能,此时的压力就大概是密封腔的压力。封油注入(PLAN32)的压力一定要高于密封腔的压力,这样才能确保封油注的进去。而PLAN53a的压力要比PLAN32要高0.1-0.2MPa。换句话说,第一道密封是封介质的,不让介质漏到大气中;第二道密封是封封油的,防止封油漏到大气中,最后要是漏,也只能是白油(TSA46汽轮机油)漏到密封腔里跟着介质走了。当需要频繁补白油的时候,那就是密封漏了。
Reply #92018-11-06
P32封油用柴油欠妥,容易气化抽空,可以用回炼油!
Reply #102018-11-06
确实存在这个问题,不过目前也没有更改流程。回炼油里面带有杂质是不是会影响密封的运行?
Reply #112019-04-10
先投用外侧机封p53a,再投内侧p32
Reply #122019-04-11
封油使用柴油较多。日常做好脱水、脱汽,注入量,压力合适,机泵抽空问题应该不大。 回炼油见得少(如海友有好的使用经验,可否分享学*)。回炼油泵好像是用柴油作封油的。
Reply #132019-04-11
百度一下有专门的计算公式

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