| 摘要 |
A sealing system is used for sealing entry ports of piping into the sidewalls of structures. The system is designed to receive a length of insulated piping and seals the piping against liquid intrusion. The system can also compensate, where necessary, for the expansion and contraction which occurs as these systems thermally expand in the presence of high temperature fluids being conveyed or due to other forces. The system uses a flexible bellows to couple the insulated piping to a liner sleeve located in a porthole opening of the structure. The bellows arrangement not only seals against liquid intrusion, but also compensates for any relative movement of the inner fluid conveying pipes with respect to the liner sleeve of the structure. A flexible strut system may also be used within the interior of the structure to join pipe ends and further compensate for forces of expansion and contraction.
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