摘要:
An installation for and a method for driving a submarine pipeline scraper, wherein one of the ends of the pipeline has a launch device and the other end has a receiving device. The scraper defines an upstream chamber and a downstream chamber. It can be launched inside the pipeline from the launch device in the direction of the receiving device, allowing water to enter through the launch device in order to subject the upstream chamber to hydrostatic pressure. The receiving device is identical to the launch device, such that water can enter through the receiving device in order to balance the pressure of the two chambers, and also enables a fluid to be injected into the downstream chamber to drive the scraper toward the launch device.
摘要:
An improved vent cleaning apparatus for removing dust from air conditioning and heating vents and wherein unnecessary toque loads on the flexible shaft are eliminated by the presence of swivel cuff means between the exhaust opening where the flexible tubular conduit containing the shaft is connected to the apparatus and the flexible tubular conduit itself.
摘要:
A water pipeline foreign matter obstruction remover having an interior space, the water output hole of a water output head at the center of the top end, a water hose connector at the bottom section, and a connector seat that conjoins the top section with the water output head. A number of water output openings are situated along the approximate middle section of the water output head and contained within the area between the water output head and the connector seat is a water output nozzle and a water output seat having a rotary water output head. A water output passage is situated along the interior of the water output nozzle, with the nozzle discharging from the center of the top section. Rotary cleaner arms are positioned at the top section, with a water output passage situated at the middle section. The water output seat has two semicircular seat halves, one of the semicircular seat halves is aligned with the water output passage situated at the middle section of the water output nozzle, enabling the placement of the water output hole along the tangent of the insertion fastening edge in the interior section in the direction, the assembly fitting within a pipeline for removal of foreign matter.
摘要:
A robot for the repair of sewer pipes comprises a carriage unit driven by a traction motor (2) arranged internally of a carriage housing (1) with wheels (7,9). The carriage housing (1) is connected to a rotary head (15) arranged immediately before the carriage housing (1). The rotary head (15), having tools and/or inspection devices mounted thereon, is driven by rotary motor (22). The traction motor (2) and the rotary motor (22) are arranged in a mutually overlapping relationship. The rotary head (15) is connected to a hollow shaft (23) extending through the whole carriage housing (1). The rotary head (15) is adapted for attachment of a robot arm carrying a tool support. A swivel arm of the robot arm as well as the tool support can be swiveled by hydraulic cylinders. The end of the robot arm facing away from the rotary head (15) is provided with a support wheel.
摘要:
An improved cup for use as a part of a pipeline pig is in the form of an elastomeric cup member having an outer circumferential pipe engaging portion defined by a plurality of at least three closely spaced apart integral circumferential lip portions, the lip portions being separately flexible with respect to each other and each of the lip portions having a length that is at least twice its thickness. The multiple-lip cup may be removably attached to a pipeline pig body or be made integral with an elastomeric pipe pig body.
摘要:
An in-pipe vehicle for carrying out at least one operation in a pipeline. The vehicle includes a train of modules interlinked by suspension units to allow serpentine movement through pipe bends. The vehicle train has its own internal power supply and drive mechanism in the modules. A detector module determines the presence of a service junction using magnetic field information. A manipulative module allows the vehicle to be temporarily wedged in the pipeline while providing rotational movement to facilitate the desired operation at the junction. This may include drilling and welding of a service pipe to the main using appropriate modules. A remote probe typically containing a magnetic field generator can be used to assist in service junction location by the vehicle.
摘要:
A sensor for use in installing a plastic service pipe inside a steel service pipe connected to a main includes a flexible element which is fed through the steel pipe and through the plastic pipe. The element has at its remote end two light-emitting diodes and two photoconductive cells. The flexible element and the pipe are fed together into the steel pipe. The sensor indicates when the cells have entered the main because the intensity of the light reflected to the cells falls to a low value and gives an audible or visual signal. This also indicates that the end of the plastic pipe which carries a seal is positioned correctly and that sealant can be injected into the space between the steel pipe and the plastic pipe. After the sealant has set the sensor can be recovered by withdrawal through the noise-piece and through the pipe.
摘要:
The invention involves a device and a process which can be employed for sealing building branch lines (3b) leading from a building or a collecting manhole directly to a sewer main (4) using a relining process in which liners (1) made of self-hardening/self-curing sealant are used. In the process according to the invention, a pipe repairing machine (6) is employed which features a rope guiding device (10) at its front end (14), said rope guiding device (10) being comprised of a roller mount (15) to which a deflection pulley (5) and a retaining roller (16) are affixed. The pipe repairing machine (6) into whose rope guiding device (10) the rope (7) to which the liner (1) is attached is threaded is positioned inside the sewer main (4) at the building branch line junction (2) in such a manner that the rope (7) does not come into contact with the building branch line edge (9) facing the pipe repairing machine (6) when taut. While the rope (7) is being pulled through the building branch line (3b), a support foot (11) with a brake block (12) ensures that the pipe repairing machine (6) does not shift.
摘要:
An in-pipe running robot includes a vehicle body movable inside piping along a piping axis, and a pair of running devices disposed in front and rear positions of the vehicle body. Each of the running devices has a pair of wheels secured to opposite ends of an axle. The wheels are steerable as a unit about a vertical axis of the vehicle body, and have a center of steering thereof extending linearly in a fore and aft direction of the vehicle body. When the robot is caused to run in a circumferential direction inside the piping, the vehicle body is set to a posture having the fore and aft direction inclined with respect to the piping axis, with the running devices set to a posture for running in the circumferential direction. Then, the running devices are driven to cause the vehicle body to run stably in the circumferential direction of the piping.
摘要:
A plastic packing ring or disk for scrapers and other such bodies sliding in pipelines consists essentially of polyurethane and is supported annularly on the inside of the pipe. To make especially this kind of support elements on scrapers more resistant to friction stresses and improve their sliding qualities, the plastic packing rings or disks on the scrapers have embedded particles of solidified polyethylene at least in an outer part intended for contact with the pipeline.