Expansion joint with protective shielding
AssigneeFoster Wheeler Energia Oy
InventorsJames Burke, F. Edward Linck
Life of this patent
Estimating the term…
Abstract
An expansion joint for protectively shielding a seal member disposed in a joint between two flue sections, includes a first shield member having a foot for attachment to an end of a first flue section, the shield member having a curved panel portion for extending over and protectively shielding a seal member, and a second shield member having a foot for attachment to an end of a second flue section, the second shield member having a curved panel portion for extending over a portion of the first shield and along the direction of gas flow.
Claims19
An expansion joint protective shield for protectively shielding a seal member disposed in a joint between two flue sections, comprising:
- a first shield member formed of sheet metal defining a pair of spaced apart panels connected together by a curved section, one of said panels having means for attachment to an end of a first flue section, said first shield member forming a space between said panels for receiving and protectively shielding a seal member;
- and
- a second shield member formed of sheet metal defining a pair of panels connected by a curved portion and extending substantially at a right angle to one another, one of said panels having means for attachment to an end of a second flue section, said second shield member being formed for extending over and overlapping a portion of said first shield member and along extending the direction of gas flow.
A shielded expansion joint for a flue assembly having a first flue section defined by a peripheral wall terminating at a first end and a second flue section defined by a peripheral wall substantially aligned with said first flue section and terminating at a second end in spaced relation to said first end defining a joint space, comprising:
- a seal assembly for mounting in the joint space between spaced ends of said pair of aligned flue sections for sealing said space and allowing relative movement between said ends;
- an inner shield assembly comprising an array of first shield members having a foot attached to said first end of said first flue section, said shield members each having a pair of parallel panels joined by a curved portion for extending over and protectively receiving and shielding said seal member;
- and
- an outer shield assembly comprising an array of second shield members, each second shield member defined by a central panel portion having a foot for attachment to said second end of said second flue section, said second shield member having an outer panel portion joined by a curved section to said central panel portion and extending at an angle thereto for extending over a portion of said first shield and along the direction of gas flow.
A shielded expansion joint for a flue, comprising:
- a first flue section defined by a peripheral wall terminating at a first end;
- a second flue section defined by a peripheral wall substantially aligned with said first flue section and terminating at a second end in spaced relation to said first end defining a joint space;
- a seal assembly for mounting in said joint space between spaced ends of said pair of aligned flue sections for sealing said space and allowing relative movement between said ends;
- an inner shield assembly comprising an array of first shield members having a foot attached to said first end of said first flue section, said first shield members each formed of about sixteen gauge stainless steel sheets having a pair of parallel panels joined by curved portion for extending over and protectively receiving and shielding said seal member;
- and
- an outer shield assembly comprising an array of second shield members, each second shield member defined by a central panel portion having a foot for attachment to said second end of said second flue section, said second shield member each formed of about sixteen gauge stainless steel sheets having an outer panel portion joined by a curved section to said central panel portion an extending at an angle thereto for extending over a portion of said first shield and along the direction of gas flow.
Dependencies are inferred from the claim text.