泄漏的日常检查与判定--杨远锋的博客

泄漏的日常检查与判定

[ 2012-2-6 8:53:00 | By: 杨远锋 ]

由于换热器介质大多易燃易爆、有毒有害，为防止因泄漏而引起各种各样的事故发生，必须加强日常检查工作，以及早发现和处理。
　　
　　1．外漏
　　
　　外漏较为容易发现。
　　
　　(1)对低毒介质轻微的气体外漏，可以涂抹肥皂水、发泡剂来检查，也可用试纸变色情况来检查。
　　
　　(2)对严禁泄漏的中、高毒性介质，常用方法是，在易泄漏口如接管、法兰处涂上对该毒性介质反应灵敏的涂料，有微小的泄漏涂料颜色即会发生明显的变化，以此可迅速判断。
　　
　　(3)通过对检查壳体表面涂层的剥落污染情况，来判断壳体的泄漏。
　　
　　2．内漏
　　
　　内漏不易直接发现。但可从介质的温度、压力、流量、异声、振动以及其异常情况来判断。
　　
　　(1)对一般换热器，在出口处对低压介质定期取样分析，可知有无泄漏；
　　
　　(2)对水冷却器，可在冷却水出口处安装取样接管，定期取样检查，判断有无被冷却介质因泄漏而混入。(3)对气、液两种换热介质，如气体侧泄漏窜人液体侧，液体侧压力表上升，压力波动大，同时引起振动，用手摸液体出口即能感觉。

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原创

[ 2016-9-6 21:36:29 | By: 原创(游客) ]

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原创

[ 2016-9-28 21:10:50 | By: 原创(游客) ]

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原创

[ 2016-9-30 15:53:48 | By: 原创(游客) ]

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