Leak testing issues for floating-head heat exchangers
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Today, the master taught us about leak testing floating-head heat exchangers, which is done by injecting water. But I don’t think it’s obvious. Are there any other ways? 、
Performing a hydrostatic leak test is the most common method. Of course, for some special cases, leak testing can also be done using air pressure or halogens, etc. Search on the forum and it’s there.
Reply to 2# xlxuiin: How to test for leaks with halogens? Could you help me find it? I can’t search for it
For testing the strength of ordinary heat exchangers, a hydrostatic test is sufficient; to check for tightness, an airtightness test will do. As for the welds between the tube ends and the tube sheet, in some cases ammonia leakage testing is required, using phenolphthalein test paper to determine whether there is any color change. That’s usually all.
Kerosene can be used for a permeability test to detect any leaks; it’s very simple to do. Apply the kerosene, wait for an hour, and then check the back side of the surface where the kerosene was applied to see if there are any oil stains