Internal pipeline cooler
First Claim
Patent Images
1. An internal heat exchanger (IHEX) for internal cooling of two welded pipes, the internal heat exchanger comprising:
- a detector configured to detect a position at or near a weld joint between the two pipes;
a drive system configured to move the IHEX into a position within at least one of the pipes at or near the weld joint between the two pipes;
a cooling section including a closed circuit recirculating loop through which cooling fluid circulates to cool interior surface portions of the two pipes at or near the weld joint between the two pipes; and
a controller in communication with the detector, the drive system and the cooling section and configured to control operation of the drive system to advance the IHEX into the position within the at least one of the pipes at or near the weld joint between the two pipes and to activate the cooling section when the IHEX is at the position within the at least one of the pipes at or near the weld joint between the two pipes.
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Accused Products
Abstract
An internal heat exchanger (IHEX) for pipeline welding includes a drive system configured to move the IHEX into a position within at least one pipe section near a weld joint location with another pipe section. The IHEX further includes a cooling section including cooling structure configured to selectively cool one or more interior surface portions of the at least one pipe section, and a controller in communication with the cooling structure and configured to activate the cooling section when the IHEX is at the position within the at least one pipe section.
204 Citations
14 Claims
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1. An internal heat exchanger (IHEX) for internal cooling of two welded pipes, the internal heat exchanger comprising:
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a detector configured to detect a position at or near a weld joint between the two pipes; a drive system configured to move the IHEX into a position within at least one of the pipes at or near the weld joint between the two pipes; a cooling section including a closed circuit recirculating loop through which cooling fluid circulates to cool interior surface portions of the two pipes at or near the weld joint between the two pipes; and a controller in communication with the detector, the drive system and the cooling section and configured to control operation of the drive system to advance the IHEX into the position within the at least one of the pipes at or near the weld joint between the two pipes and to activate the cooling section when the IHEX is at the position within the at least one of the pipes at or near the weld joint between the two pipes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification