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US 6,581,549 B2Granted
Sootblower lance port with leak resistant cardon joint
AssigneeClyde Bergemann GmbH
InventorsMichael W. Stewart, Jeffrey A. Atchley
Life of this patent
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AssigneeClyde Bergemann GmbH
InventorsMichael W. Stewart, Jeffrey A. Atchley
Estimating the term…
A cardon joint is provided for mounting in a wall of a boiler to accommodate a sootblower lance and to allow the lance to be manipulated with respect to the boiler wall. The cardon joint includes a wall box having a central opening. An outer ball having a substantially spherical outer surface and a central bore is mounted for axial rotation about a first axis within the central opening of the wall box. An inner ball having a substantially spherical outer surface and a central bore is mounted for axial rotation about a second axis within the central bore of the outer ball. The first and second axes are mutually orthogonal and the central bore of the inner ball is sized to accommodate the lance of a sootblower. As the lance is manipulated to clean an opposite wall of the boiler, the inner and outer balls rotate about their axes to accommodate the manipulation. Substantially constant gaps are maintained between the outer ball and the wall box and between the inner ball and the outer ball to provide a controlled constant flow of seal air through the gaps.
A cardon joint for mounting in a wall of a boiler to support a sootblower lance and to allow manipulation of the sootblower lance, said cardon joint comprising:
A boiler comprising:
A cardon joint assembly for mounting in a wall of a boiler to accommodate a sootblower lance extending through said cardon joint, said cardon joint assembly comprising a mounting block assembly having a central opening, an outer ball having a substantially spherical outer surface and a central bore, said outer ball being mounted for axial rotation about a first axis within said central opening, and an inner ball having a substantially spherical outer surface and a central bore, said inner ball being mounted for axial rotation about a second axis within said central bore of said outer ball, said central bore of said inner ball being sized to receive a sootblower lance and said rotatable inner and outer balls rotating about their respective axes to accommodate selective manipulation of said sootblower lance relative to the boiler wall.
A cardon joint assembly for mounting in a selected wall of a boiler to accommodate and permit selective manipulation of a sootblower lance extending through the boiler wall, said cardon joint assembly comprising a mounting block defining a generally circular central opening bounded by an opening wall, a generally spherical outer ball having a central bore, said outer ball being mounted within said central opening for rotation therein about a first axis with a first gap being formed between said outer ball and said opening wall, a generally spherical inner ball having a central bore for receiving a sootblower lance, said inner ball being mounted within said central bore of said outer ball for rotation therein about a second axis different from said first axis, a second gap being formed between said inner ball and said outer ball, the size of said first and second gaps remaining substantially constant as said inner and said outer balls rotate about their respective axes during manipulation of the sootblower lance.
Dependencies are inferred from the claim text.