Abstract:
A repair assembly and method of use is provided. The repair assembly includes a liner assembly for repairing a pipe system including a first pipe, a second pipe extending from the first pipe, and in some embodiments a third pipe extending from the second pipe. The third pipe may include multiple pipes. The repair assembly further includes a bladder assembly. The liner and bladder assembly are configured to work together to be positioned within the first, second, third and any additional pipes to line and repair all of the components of the pipe system in a single repair. Such repair will reduce the amount of time required to repair such pipe systems, and will increase the efficiency of repairing pipes.
Abstract:
A method and system for applying a liner to an underground utility structure is provided. First a layer of epoxy is applied to the interior surface of the host pipe using a machine such as a spincast machine. A dry liner is inverted into the pipe directly behind the coating application at a limited speed and pressure. A drag is set on the inversion equipment relative to the speed of the epoxy spinner unit to control inversion speed. Once the liner is completely inverted the internal pressure of the liner is raised and infused into the uncured epoxy.
Abstract:
A method and means for repairing the junction (60) of a main (56) and lateral (58) pipe are provided. A repair assembly (10) includes a launcher device (12), a bladder assembly (22) surrounding the launcher device (12), and a liner assembly (32) surrounding the bladder assembly (22). The bladder assembly (22) is frangibly connected to the launcher device (12) to maintain the position of the bladder assembly (22) relative to the launcher device (12) during transport and positioning of the assembly. Likewise, the liner assembly (32), which includes main (34) and lateral liner members (36), is frangibly connected to the bladder assembly (22). The frangible connections allow the position of the repair assembly (10) to be maintained. The frangible connections can be broken, such as by inflation and/or tearing or pulling apart of the components of the repair assembly (10). Thus, the invention provides a way to mitigate the movement of components of the repair assembly (10) during transport and positioning of the repair assembly (10).
Abstract:
The invention relates to an inversion control apparatus (10) for controlling the inversion of a calibration hose (12), in particular for use in an apparatus (106) for the rehabilitation of pipelines (102, 104). In order to control an inversion of the calibration hose (12), it is proposed according to the invention that the inversion control apparatus (10) has a stop (14), a control pull mechanism (22) and a counter element (16), wherein the control pull mechanism (22) is connected to an end region (113) of the calibration hose (12), wherein the counter element (16) is connected to the control pull mechanism (22), and wherein, upon an inversion, the counter element (16) is displaceable relative to the stop (14) such that, when the calibration hose (12) is in an inversion end setting, the counter element (16) butts against the stop (14).
Abstract:
An apparatus and method of making a cured-in-place pipe repair to a lateral pipe having an area in need of repair. The method and apparatus use a liner assembly comprising a bladder tube and a liner tube. The liner tube comprises at least one layer of non-stretching material, which includes strands of non-stretching material oriented in the longitudinal direction of the liner tube. The strands allow radial stretching but ensure that the liner tube does not stretch longitudinally, which prevents the liner tube from stretching into a main pipe or past the area in need of repair during use. The liner tube may also comprise second and third layers of a resin impregnable material, such as felt, which surround the layer of non-stretching material such that the liner tube may be impregnated with a resinous material to repair a pipe having an area in need of repair.
Abstract:
Die Erfindung betrifft ein als Flachbandkabel (1) ausgebildetes optisches Sensorkabel und die Verwendung des optischen Sensorkabels zur Messung im UV-Licht und seine Verwendung bei technischen Bestrahlungsvorgängen mit UV-Licht. Das als Flachbandkabel (1) ausgebildete optische Sensorkabel umfasst einen im Querschnitt flachen Profilkörper (2). Dieser weist mindestens einen zentral und sich parallel zur Achse des Sensorkabels erstreckenden hoch-transparenten Teilbereich (6) auf. In dem transparenten Teilbereich (6) ist ein für optische Messtechnik im UV-Wellenlängenbereich einsetzbarer Lichtwellenleiter (8) eingebettet. Der hoch-transparente Teilbereich (6) ist zu einer Flachseite des Profilkörpers (2) optisch zugänglich ausgebildet. Der Einsatz einer optischen Messtechnik zielt beispielsweise auf eine UV-Lichtmessung und/oder auf eine Temperatur-Messung während der Installation und während des Aushärtvorgangs in einem Relining-Schlauch (20).
Abstract:
The invention relates to a lining element for the repair of a connection area between a main pipe and a branch pipe, comprising a layer of resin- absorbing material. In a first variant, at least three flexible, expandable lining parts are connected to each other by at least three connections to form the lining element. To manufacture such a lining element, the at least three flexible, expandable lining parts are provided and connected to each other by means of at least three connections to form the lining element. Furthermore, the invention relates to another lining element, comprising at least one lining part having a layer of resin-absorbing material, which has a tubular preform, and which is deformable by means of heat and/or forming to achieve a tubular final form. To manufacture such a lining element, at least one tubularly preformed lining part is provided having a layer of resin-absorbing material in a tubular preform, and then the tubularly preformed lining part is deformed by means of temperature and/or forming to form the final shape.
Abstract:
An apparatus and a method for forming a lining in a pipe is disclosed. A pumpable material capable of curing is dispensed about an interior wall of a damaged section of pipe between an inflatable bladder and the pipe. The pumpable material is compressed between the bladder and the pipe and allowed to cure. An assembly for forming the lining in the pipe includes a feeding pump, a static mixer, a dispensing unit and a bladder. The pumpable material is preferably dispensed rearward of an inverting face of the bladder and the dispensing unit and the bladder move substantially in sync along the interior of the pipe.
Abstract:
An evertable extended liner comprising a liner and an extender-tube that are joined to form a continuous tubular entity. When a pressurising fluid is introduced into the interior of the extended liner it is caused to evert and extend progressively, the uneverted part of the liner passing through the interior of the extended liner, being drawn progressively in direction forwards towards the point of eversion. By this process the liner and the extended liner may be caused to evert into a pipe being lined where the liner may subsequently be formed against the inner surface of the pipe by means of fluid pressure which may be applied directly or by a separate pressurisable tube, following which means for applying fluid pressure are removed and the extender-tube is detached from the liner.
Abstract:
Method is provided of radially expanding a tubular element in a wellbore whereby a control line extends along the tubular element. The method comprises (a) inducing the wall of the tubular element to bend radially outward and in axially reverse direction so as to form an expanded tubular section extending around a remaining tubular section of the tubular element, wherein said bending occurs in a bending zone of the tubular element, (b) increasing the length of the expanded tubular section by inducing the bending zone to move in axial direction relative to the remaining tubular section, wherein said wall includes a material that is plastically deformed in the bending zone during the bending process so that the expanded tubular section retains an expanded shape as a result of said plastic deformation, and (c) extending the control line along the tubular element.