Is it possible to cut off the bent section of the external tube bundle and replace it with a new tube using welding?
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Can the section at the bend of the external tube bundle be cut off and replaced with a new tube using welding?
No, the external heat exchanger tubes are affected by various conditions; the temperature difference between hot and cold sides is large, leading to significant wear and extreme stress. It is best to replace the entire tube bundle, or to block both ends of it so that it cannot be used.
If you work for a private company, you can do it this way... the boss will definitely agree... If you work for a state-owned company, follow what Fu Tou suggests; then no one will have any objections... haha... :lol
When the heat load is sufficient, it’s best to seal it off and not use it
It should be fine, as the equipment is also welded in the factory rather than being forged as a single piece; therefore, make sure to carry out heat treatment in accordance with the material requirements after making the replacement, and that way there should be no problems! !
Even with the same material and the same welding filler, it is still not good. Used pipes become brittle and cannot be matched with new pipes. It is best to replace the entire one, or blind both sides.
It must be replaced according to the regulations; if more units become faulty, it’s best to replace them all. . . I still say the same thing: private companies are examples of thrift, and bosses generally won’t easily agree to let you change their valuable assets at will. . . . Hahahahaha. . . . :lol