Title: Deaerator Unit Examination

In 1971, a rupture occurred in a deaerator heater installed in a power plant. In 1979, the head of a deaerator storage tank separated suddenly around the shell circumference alongside the girth weld. Two additional deaerator heaters ruptured in 1983 in the United States, with catastrophic consequences to personnel working at the respective plants. In 1998, another catastrophic rupture occurred in a deaerator located in Belgium. The rupture caused severe damage to the plant facility. This was followed in 1999 by another catastrophic rupture of a deaerator located in the Dominican Republic. Because of the ruptures of the deaerator heaters and deaerator storage tanks that have occurred, and the discovery of cracking in a significant number of other deaerator heaters and deaerator storage tanks, the National Board of Boiler and Pressure Vessel Inspectors have expressed serious concerns about the integrity of this type of equipment. As a result of the catastrophic failures, a number of insurance underwriters, trade associations, and publications have been recommending the inspection of deaerator heaters and deaerator storage tanks. Failure Causes and Considerations…

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Company  Product  Process  Other  Subjects  Event  Event  Date  Location  Publication  Publication  Date Text  Descriptor
  • Thielsch Engineering

  • Aeration

 

 

 

 

 

  • 7/1/2013

 

  • Article