Block unit for repairing flow passage facilities and method...

Details Block unit for repairing flow passage facilities and method... Block unit for repairing flow passage facilities and method...

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 55/162 (2006.01) F16L 55/163 (2006.01)

Patent

CA 2435831

A block unit for repairing flow passage facilities is provided for permitting a desired repair operation. A method of repairing flow passage facilities using the block unit is also provided. The block unit includes an inner plate defining an inner surface, an outer plate disposed along a peripheral edge of the inner plate, and a plurality of reinforcing ribs for reinforcing the inner plate and the outer plate. The block units adjoining in a circumferential direction are joined together with bolts inserted through both circumferential end faces of each of the block units and nuts fitted on the bolts to form a short tube within a flow passage. The short tubes are connected in a longitudinal direction to form a continuous tubular assembly having an outer diameter smaller than an inner diameter of the flow passage. A grout material is injected into a clearance space formed between the tubular assembly and the flow passage.

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