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金属波纹补偿器的安装要求及失效的原因有哪些?

发表时间:2019-12-27 【

乐彩网  BOWENGUANBUCHANGQIPENGZHANGJIESHIXIAODEYUANYIN:

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  直埋式金属波纹补偿器出厂时,所有外露表面已刷防锈漆两遍,直埋式波纹补偿器及其直埋管道的要求为:
  1、保温管埋于地下时,四周需用粒度小于20毫米的砂子填充,然后再覆盖原土,填充砂子的厚度不小于200毫米。
  2、保温管顶的埋深一般不超过1.2米,但也尽量不要小于0.7米,保温管 可以直接埋在各种管道下面。
  3、直埋式补偿器安装不需要冷紧,也不必按全线钢管接好后再割下和膨胀节等长管道之后再焊接的方法。使用直埋型膨胀节,不必设导向支架。
  4、安装时要注意保证导流套筒的方向与流动方向保持一致。
  5、补偿器内介质应进行除游离氧和除氯离子的处理,氯离子含量不得超过25PPm。
  6、补偿器允许不超过 倍公称压力的系统水压试验。
乐彩网  7、补偿器安装完毕进行系统水压试验前,要将管道两端固定,防止内压推力拉伸补偿器。

大拉杆横向波纹补偿器(TDL)