Expansion jointing of heat exchange tubes and tube sheets
Thread Content
Is expansion jointing hardly ever used in chemical processing equipment? Is strength welding and expansion bonding + seal welding usually chosen? ?
Principles for selecting the method of connecting heat exchange tubes to tube sheets: 1. Strength expansion jointing – suitable for equipment handling low-pressure, low-corrosivity media such as air and water. 2. Strength welding – suitable for equipment under medium to high pressure with media that are not highly corrosive. 3. Expansion jointing plus seal welding – suitable for equipment under medium to high pressure with highly corrosive media. Of course, it is also necessary to consider which processing method is appropriate based on the materials used in the equipment
Reply to 2#: Dozing off at work. Generally, sealed welding is paired with strength expansion. For patch swelling, it’s strength welding, right?
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