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Deutsch Translations » 【管道阀门技术圈】 » [" "Ursachen und保留在原文", " "Vorsichtsmaßnahmen zur Verh留在原文"

[" "Ursachen und保留在原文", " "Vorsichtsmaßnahmen zur Verh留在原文" ", " "Der V阀门操作的过程，同时也是检查的过程。。 " "Hinweise zu beachten:保留在原文" " "W温阀门，当温度升高到"保留在原文" " " "温阀门，当温度升高到"保留在原文" " " "螺栓受热伸长"保留在原文" " " "这时需要对螺栓进行"保留在原文" " " "在热紧时"保留在原文" " " "以免阀杆顶死"保留在原文" " " "气温在"保留在原文" " " "对停汽和停水的阀门"保留在原文" " " "要注意排除凝结水和积水"保留在原文" " " "以免冻裂阀门"保留在原文" " " "对不能排除积水的阀门和间断工作的阀门应注意保温工作"保留在原文" " " " "填料压不宜压得过紧"保留在原文" " " " "那种认为压得得越紧越好是错误的的"保留在原文" " " "压压的越紧会加快阀杆的磨损"保留在原文" " " " "操作中通过听、闻、看、摸"保留在原文" " " " "操作人员要认真分析原因因"保留在原文" " " " " "属于自己解决的"保留在原文" " " " "需要修理工解决的"保留在原文" " " " " "自己不要勉强凑合"保留在原文" " " "以免延误修理时机"保留在原文" " " "操作人员应当有专门日志或记录本"保留在原文" " " "注意记载各类阀门运行情况"保留在原文" " " "特别是一些重要的阀门"保留在原文" " " "高温高压阀门和特殊阀门"保留在原文" " " " "包括阀门的传动装置在内"保留在原文" " " "记明阀门发生的故障及其原因保留在原文" " " " "原因原因处理方法、 "保留在原文" " " " " "这些资料无疑对操作人员本身 "保留在原文" " " "修理人员 "保留在原文" " " " "以及制造厂来说 "保留在原文" " " " "都是很重要的 "保留在原文" " " " " "建立专门日志 "保留在原文" " " " "责任明确 "保留在原文" " " " " "有利加强管理 "保留在原文" " " " "垫片处产生泄漏的原因 "保留在原文" " " " ( "保留在原文" " " "垫片选用不对 "保留在原文" " " " " "不耐介质的腐蚀蚀 "保留在原文" " " " "不耐高压或真空 "保留在原文" " " "高温或低湿的使用用 "保留在原文" " " " " " ( "保留在原文" " " "操作不平稳 "保留在原文" " " "引起阀门压力 "保留在原文" " " "温度上下波动 "保留在原文" " " " " "特别是温度的波动 "保留在原文" " " " " ( "保留在原文" " " "垫片的压紧力不够 "保留在原文" " " "或者连接处无预紧间隙 "保留在原文" " " " ( "保留在原文" " " " "垫片装配不当 "保留在原文" " " " "无受力不匀 "保留在原文" " " " ( "保留在原文" " " " "静密封面加工质量不高 "保留在原文" " " " "表面粗糙 "保留在原文" " " "不平 "保留在原文" " " " "横向划痕 "保留在原文" " " " "密封副互不平行 "保留在原文" " " " ( "缺陷 "保留在原文" " " " " ( "保留在原文" " " " " "静密封面和垫片不清洁 "保留在原文" " " "混入异物 "保留在原文" " " " ( "保留在原文" " " " " "预防和排除方法 "保留在原文" " " " " ( "保留在原文" " " " "应按工况条件 "正确选用垫片的材料和式 "保留在原文" " " " " " "精心调节 "保留在原文" " " " " " "平稳 "保留在原文" " "操作 "保留在原文" " " " " " ( "保留在原文" " " "应均匀 "对称拧紧螺栓 "保留在原文" " " "必要时应使用扭力扳手 "保留在原文" " " " " "预紧 "应符合要求 "保留在原文" " " "不可过小 或过大 "保留在原文" " " "法兰和螺纹连接处应有 "一定的的预紧间隙 "保留在原文" " " " ( "保留在原文" " " "垫片装配应逢中对正 "保留在原文" " " " "受 "不匀 "保留在原文" " " " "垫片不允许搭接 "保留在原文" " " " "使用用双垫片 "保留在原文" " " " ( "保留在原文" " " "静密封面腐蚀 "保留在原文" " " "损坏 "保留在原文" " " "加工质量不高 "保留在原文" " " "应进行修理 "保留在原文" " " "研磨 "保留在原文" " " "进行着色检查 "保留在原文" " " "使静密封面符合有关要求 "保留在原文" " " " ( "保留在原文" " " "安装垫片时应注意清 "保留在原文" " " "密封面应煤油清洗 "保留在原文" " " "垫片不应落地 "保留在原文" "

2020-09-30View Original

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阀门操作的过程，同时也是检查的过程。需要注意事项如下： 1．高温阀门，当温度升高到200℃以上时，螺栓受热伸长，容易使阀门外密封部位密封能力下降，这时需要对螺栓进行“热紧”，在热紧时，不宜在阀门全关位置进行。以免阀杆顶死，以后开启困难。2.气温在0℃以下的季节，对停汽和停水的阀门，要注意排除凝结水和积水，以免冻裂阀门。对不能排除积水的阀门和间断工作的阀门应注意保温工作。3.填料压盖不宜压得过紧，应以阀杆操作灵活为准。那种认为压盖压的越紧越好是错误的，压的过紧会加快阀杆的磨损，增加操作扭力。4.在操作中通过听、闻、看、摸所发现的异常现象，操作人员要认真分析原因，属于自己解决的，应及时消除，需要修理工解决的，自己不要勉强凑合，以免延误修理时机。5.操作人员应有专门日志或记录本，注意记载各类阀门运行情况，特别是一些重要的阀门、高温高压阀门和特殊阀门，包括阀门的传动装置在内，记明阀门发生的故障及其原因、处理方法、更换的零件等，这些资料无疑对操作人员本身、修理人员、以及制造厂来说，都是很重要的。建立专门日志，责任明确，有利加强管理。 1.垫片处产生泄漏的原因： （1）垫片选用不对,不耐介质的腐蚀,不耐高压或真空、高温或低湿的使用 （2）操作不平稳,引起阀门压力、温度上下波动、特别是温度的波动。 （3）垫片的压紧力不够或者连接处无预紧间隙。 （4）垫片装配不当,受力不匀。 （5）静密封面加工质量不高,表面粗糙、不平、横向划痕、密封副互不平行等缺陷。 （6）静密封面和垫片不清洁,混入异物等。 2.预防和排除方法： （1）应按工况条件正确选用垫片的材料和塑式。 （2）精心调节,平稳.操作。 （3）应均匀、对称地拧紧螺栓,必要时应使用扭力扳手,预紧力应符合要求,不可过小或过大。法兰和螺纹连接处应有一定的预紧间隙。 （4）垫片装配应逢中对正,受力均匀,垫片不允许搭接和使用双垫片。 （5）静密封面腐蚀、损坏、加工质量不高,应进行修理、研磨,进行着色检查,使静密封面符合有关要求。 （6）安装垫片时应注意清沽,密封面应用煤油清洗,垫片不应落地。

Translated at 2026-08-07 13:38:08

Original: https://bbs.hcbbs.com/thread-3098389-1-1.html

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