Patent classifications
F16L55/1654
CURED-IN-PLACE PIPE UNIT AND REHABILITATION
Apparatus and methodology for installing and curing of “Cured-in-place” pipe, mounted unitarily as a mobile unit having a pressurization system such as a low pressure-high volume blower system, a low-NOx burner system, a power system such as a hydraulic reservoir, electrical and/or motor driven, and a burner chamber system.
LINING DEVICE FOR LINING A SEWER BRANCH PIPE
The lining device is intended to line a sewer branch pipe with a lining tube. It includes a holding chamber for the lining tube, the holding chamber having a straight holding-chamber bearing line. Furthermore, it has a reduction piece which is attached to an end side of the holding chamber and has a straight reduction-piece bearing line, which is aligned with the holding-chamber bearing line. Moreover, it has a deflection piece which is provided with a blow-out connection piece for fastening one end of the lining tube to, wherein a position of the blow-out connection piece is settable and adaptable to the position of a junction of the sewer branch pipe leading into the main sewer. Furthermore, it has pressure application device in order to blow out a lining tube, present in the holding chamber and fastened to the blow-out connection piece.
METHOD OF LINING A TUBULAR STRUCTURE
Method of lining a tubular structure with a plastics liner pipe comprising the steps of:—temporarily reducing an outside diameter of the liner pipe by passing the liner pipe through a roller system;—cooling the liner pipe once its outside diameter has been reduced and applying a thermal restraint;—transporting the liner pipe to an installation site remote from the roller system;—removing said thermal restraint; and—installing the liner pipe in said tubular structure at said installation site.
METHOD OF INSTALLING LINER ASSEMBLY FOR PIPELINE REPAIR OR REINFORCEMENT, AND LINER ASSEMBLY AND STEAM GENERATOR FOR SAME
A steam generator for use with a liner assembly for pipeline repair or reinforcement, includes: a water heater configured to heat water to generate steam; a water feed conduit configured to convey water to the water heater; an air heater configured to generate heated air; an air supply conduit configured to convey pressurized air to the air heater; a heated air supply conduit configured to convey heated air from the air heater to the water heater to yield a steam-air mixture; and an output conduit configured to convey the steam-air mixture from the water heater. An automated steam generator system including the steam generator is also described.
Method for rehabilitating a pipeline with a liner
A method for rehabilitating a pipeline with a liner includes providing a coupling member to connect a liner to a pipeline element. A first alignment element is connected to an end of the host pipe and a second alignment element to an end of the coupling member to axially align both components. A length of the liner is provided through the pipe and the coupling member to expose a joining section of the liner outside the pipe. The coupling member is brought towards the pipe such that the first and second alignment elements mate and the joining section of the liner is received in the coupling member. The joining section of the liner is pressurized to engage an interior surface of the coupling member, and a curable resin composition of the liner is cured to form a functional joint between the coupling member and the liner joining section.
EXPANDABLE PIPE INCLUDING A LINER FOR RESTORING A CONDUIT
An expandable pipe for restoring a damaged pipe is provided. The expandable pipe includes a liner formed of thermoplastic polyurethane, and grout material applied to the exterior surface of the liner. The exterior surface includes a plurality of flared tips and grooves, and each groove is located between adjacent flared tips. The grout material is disposed on the flared tips and in the grooves of the liner. The method used to restore the damaged pipe includes clamping the liner with the grout material on a puller-sealer fixture having a U-shaped cross-section to prevent debris from entering the interior of the liner, and pulling the puller-sealer fixture and liner through the damaged pipe. The grout material expands in volume upon exposure to moisture, ultra violet radiation, heat, and/or ultrasonics, and fills cracks or other imperfections and voids along the interior surface of the conduit, caused by corrosion, erosion, or other circumstances.
PIPE-LINER EVERSION SYSTEM AND METHOD
A pipe-liner system for lining a pipe and methods of use thereof. A continuous, eversible extended liner is formed from a pipe-liner attached to an extender-tube via a substantially leak-proof connection there between. Lengths of the extender-tube and the pipe-liner are each chosen so that the pipe-liner is caused to be accurately positioned within the pipe upon everting the extended liner into the pipe by a pressurized fluid. The pipe-liner is held against an interior surface of the pipe being lined by inserting an inflatable bladder into the extended liner and filling the bladder with pressurized fluid. When a resin in the pipe-liner has hardened, the bladder is removed and the extender-tube is detached from the pipe-liner.
Expandable pipe including a liner for restoring a conduit
An expandable pipe for restoring a damaged pipe is provided. The expandable pipe includes a liner formed of thermoplastic polyurethane, and grout material applied to the exterior surface of the liner. The exterior surface includes a plurality of flared tips and grooves, and each groove is located between adjacent flared tips. The grout material is disposed on the flared tips and in the grooves of the liner. The method used to restore the damaged pipe includes clamping the liner with the grout material on a puller-sealer fixture having a U-shaped cross-section to prevent debris from entering the interior of the liner, and pulling the puller-sealer fixture and liner through the damaged pipe. The grout material expands in volume upon exposure to moisture, ultra violet radiation, heat, and/or ultrasonics, and fills cracks or other imperfections and voids along the interior surface of the conduit, caused by corrosion, erosion, or other circumstances.
Tubular Liner for the Rehabilitation of a Sewer Pipe
The invention relates to a tubular liner for the rehabilitation of an, in particular, underground sewer pipe, comprising at least an inner tubular film, a resin-carrier layer surrounding the inner tubular film, and comprising a mechanically protective outer film system. The outer film system comprises at least one outer film in the form of a UV-radiation- and short-wavelength, visible light-absorbing and/or -reflecting, single-layer or multi-layer film which contains, in one or more polymer layers, at least one short-wavelength, visible light-absorbing and/or—reflecting, organic or inorganic color pigment or a corresponding dye, and at least one organic or inorganic compound which absorbs and/or reflects the UV radiation. Moreover, the outer film system comprises at least one mechanically stable reinforcing web which rests on the aforementioned outer film. The outer film system has a transmittance for visible light at at least one wavelength in the range of 550 nm to 800 nm of at least 1%. The invention also relates to a method for manufacturing such an outer film system and to such an outer film system itself.
Method and apparatus for installing infield flexible liner of downhole tubing
A method of lining a tube using a spoolable liner includes connecting a connector to a distal end of the spoolable liner. The connector and spoolable liner are inserted into the tube and are advanced to a tube engagement point. A distal connection is formed between the spoolable liner and the tube by attaching the connector to an engagement mechanism at the tube engagement point. A proximal end of the spoolable liner is established and a proximal connection is formed between the proximal end and the tube. The spoolable liner is plugged with a deployable plug in a vicinity of the distal end and with a termination in a vicinity of the proximal end. An interior area is filled with a fluid such that the fluid expands the spoolable liner against an interior wall of the tube.