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AssigneeTractel S.A.
InventorsAnthony Jin, Mar Mantuhac, Leon Chen, Matthew Gryniewski, Jack Tadus
Estimating the term…
In a penstock internal maintenance system, the penstock includes an inclined portion between upper and lower ends, the upper end arranged in an edifice including a water collecting chamber and a gate bearing structure allowing a gate to close the penstock, the gate bearing structure adjacent the water collecting chamber forming a vertical pit. The system includes a set of units assembled in an assembled configuration and separated in a dismounted configuration, the units including an anchor unit, a launching unit and a penstock inspection platform unit, the units in the dismounted configuration being enter the penstock through the gate bearing structure adjacent the water collecting chamber, the units are assembled when located in the penstock, the anchor unit slidingly received and retained in the gate bearing structure, the anchor unit having two lateral edges being guided and retained in two vertical lateral grooves of the gate bearing structure.
Penstock internal maintenance system adapted for an inclined penstock of an hydroelectric plant, the penstock comprising an upper end for intaking water from a supply of water and, opposite, a lower end for delivering water, the upper end arranged in an edifice comprising a water collecting chamber on a chamber side of the upper end and at least one gate bearing structure on a water supply side of the upper end, the gate bearing structure allowing a gate to close the intake of water when the gate is in closed position, at least the gate bearing structure adjacent to the water collecting chamber forming a vertical pit adapted to slidingly receive from the top of the edifice and to retain a vertical plane device guided and retained at two lateral edges of the vertical plane device in two vertical lateral grooves of the gate bearing structure,
Anchor unit for a penstock internal maintenance system adapted for the maintenance of an inclined penstock of an hydroelectric plant, the penstock comprising an upper end for intaking water from a supply of water and, opposite, a lower end for delivering water, the upper end arranged in an edifice comprising a water collecting chamber on a chamber side of the upper end and at least one gate bearing structure on a water supply side of the upper end, the gate bearing structure allowing a gate to close the intake of water when the gate is in closed position, at least the gate bearing structure adjacent to the water collecting chamber forming a vertical pit adapted to slidingly receive from the top of the edifice and to retain a vertical plane device guided and retained at two lateral edges of the vertical plane device in two vertical lateral grooves of the gate bearing structure, the system comprises a set of units including the anchor unit that are assembled together to form an assembled configuration of the system and separated in a dismounted configuration of the system, the anchor unit in the dismounted configuration being configured to enter the penstock from the top of the edifice or, reversely leave the penstock, through the gate bearing structure adjacent to the water collecting chamber when the eventual vertical plane device has been removed from the gate bearing structure, the anchor unit being further configured to be slidingly received and retained in the gate bearing structure adjacent to the water collecting chamber, the anchor unit having two lateral edges being guided and retained in the two vertical lateral grooves of the gate bearing structure, and wherein the anchor unit comprises a deployable telescopic arm terminated by an anchor beam, the deployable telescopic arm and the anchor beam of the anchor unit being retracted within the width of the anchor unit in the dismounted configuration of the system.
Dependencies are inferred from the claim text.