A method of cleaning semiconductor equipment includes monitoring a state of a fluid in a pipeline of the semiconductor equipment, constructing a database by using data collected through the monitoring, diagnosing a state of the pipeline based on the data collected through the monitoring and stored in the database, and cleaning the pipeline by using an ultrasound wave when the state of the pipeline is diagnosed as being abnormal. The pipeline is cleaned by using at least two ultrasound wave generators.

A method of cleaning semiconductor equipment includes monitoring a state of a fluid in a pipeline of the semiconductor equipment, constructing a database by using data collected through the monitoring, diagnosing a state of the pipeline based on the data collected through the monitoring and stored in the database, and cleaning the pipeline by using an ultrasound wave when the state of the pipeline is diagnosed as being abnormal. The pipeline is cleaned by using at least two ultrasound wave generators.

The method of using the flow of liquid or gas in a pipeline to facilitate service operations within said pipeline by connecting to a service pig with a restraining line, deploying said service pig in said pipeline at a deployment location, holding back on the restraining line to cause a pressure differential buildup across the service pig to facilitate said service operations, releasing said service pig from the restraints the operations can be completed without bringing the service pig back to said deployment location.

A method and system for removing debris from drainage lines in high rise building uses a high pressure water line terminated by a head having one or more backwards-facing nozzles. The thrust force creates at the backward-facing nozzle(s) is sufficient to propel the head and water line vertically up a drainage line. An operates can control the head and, with the assistance of a video system used with the head, maneuver the head along the line, into single stack aerator fittings, and into and along horizontal lines connected to the single stack aerator fittings. The force of the water exiting the nozzle(s) on the head both dislodges debris in the drainage line and fittings, and urges it downstream back to the access point where the head was inserted into the drainage line.

A method and system for removing debris from drainage lines in high rise building uses a high pressure water line terminated by a head having one or more backwards-facing nozzles. The thrust force creates at the backward-facing nozzle(s) is sufficient to propel the head and water line vertically up a drainage line. An operates can control the head and, with the assistance of a video system used with the head, maneuver the head along the line, into single stack aerator fittings, and into and along horizontal lines connected to the single stack aerator fittings. The force of the water exiting the nozzle(s) on the head both dislodges debris in the drainage line and fittings, and urges it downstream back to the access point where the head was inserted into the drainage line.

The object of the invention is to provide a device which can, with high efficiency, polish and clean the inner surface of a pipe, dry the wet inner surface of the pipe, and perform coating, wherein the device does not require a large pump or a large motive force, and does not require a blast hose or a suction hose. More specifically, provided is an intra-pipe turbine blast system that moves along the inside of a pipe and performs work by spraying a fluid toward the inside of the pipe, wherein: a gas injected from a fluid supply device to the upstream-side end inside the pipe imparts speed to a mixed phase fluid consisting of a liquid and solid particles which are likewise injected into the pipe; the flow speed of the mixed phase fluid is set to 3 m per second which is the critical speed at which solid particles can float without precipitating in the liquid, and as a result of such setting, there is a great effect on reducing the energy required for causing the mixed phase fluid to move; and the mixed phase fluid with such setting is injected at a high speed from a rotation nozzle of a turbine crawler which moves inside the pipe, thereby polishing the inner surface of the pipe, and following the polishing work, the turbine crawler can clean, dry and coat the inner surface of the pipe.

The present invention relates to an intervention drive pig comprising an umbilical. In this scenario, the present invention provides an intervention drive pig comprising an umbilical, wherein the umbilical (6) is manufactured from a low-density material, wherein the umbilical (6) comprises an external covering of material having a low coefficient of friction.

A side-opening sleeve valve having an inner barrel with a shaped opening through its cylindrical wall having a longer size along the axis of the inner barrel, and a co-annular outer barrel having shaped opening through its cylindrical wall having a longer size along the axis of the outer barrel. The inner barrel is rotatable relative to the outer barrel between a first open position where the shaped openings overlap to form a side opening into the sleeve valve, and a second closed position where the shaped openings do not overlap. The side opening has an effective axial opening size and an effective lateral opening size in a ratio of at least about 2:1. The side-opening valve is useful with water-less toilet that can empty into the side-opening valve when opened, and when closed, a pigging fluid flush system pushes the waste in the side-opening valve to a sewage system.

A side-opening sleeve valve having an inner barrel with a shaped opening through its cylindrical wall having a longer size along the axis of the inner barrel, and a co-annular outer barrel having shaped opening through its cylindrical wall having a longer size along the axis of the outer barrel. The inner barrel is rotatable relative to the outer barrel between a first open position where the shaped openings overlap to form a side opening into the sleeve valve, and a second closed position where the shaped openings do not overlap. The side opening has an effective axial opening size and an effective lateral opening size in a ratio of at least about 2:1. The side-opening valve is useful with water-less toilet that can empty into the side-opening valve when opened, and when closed, a pigging fluid flush system pushes the waste in the side-opening valve to a sewage system.

A method and system for removing debris from drainage lines in high rise building uses a high pressure water line terminated by a head having one or more backwards-facing nozzles. The thrust force creates at the backward-facing nozzle(s) is sufficient to propel the head and water line vertically up a drainage line. An operates can control the head and, with the assistance of a video system used with the head, maneuver the head along the line, into single stack aerator fittings, and into and along horizontal lines connected to the single stack aerator fittings. The force of the water exiting the nozzle(s) on the head both dislodges debris in the drainage line and fittings, and urges it downstream back to the access point where the head was inserted into the drainage line.