Method of cleaning a heater
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 21, 2002
Issued Date -
N/A
app pub date -
Jan 14, 2000
filing date -
Oct 31, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of cleaning tubing in an operating heater, in which the tubing has an inlet and an outlet. While the heater is in operation, a pig is run through the tubing from the inlet to the outlet and then returned to the inlet along return tubing, in parallel connection to the heater tubing. A combined pig launcher and receiver mounted parallel to the tubing, and controlled with three way full port valves, is used to launch pigs into the tubing and remove them from the tubing. A boost pump is used to force pigs back from outlet to inlet.
First Claim
Family
International Classification(s)
Cited Art Landscape
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