A method of cleaning a jet pump assembly of a nuclear reactor may comprise inserting a cleaning tool into the jet pump assembly such that a front face of the cleaning tool is adjacent to an inner surface of the jet pump assembly and below a level of a first liquid in the jet pump assembly. The method may additionally comprise directing a plurality of front jets of a second liquid from a plurality of front orifices on the front face of the cleaning tool such that the plurality of front jets of the second liquid strikes the inner surface of the jet pump assembly. The method may further comprise maintaining a standoff distance between the front face of the cleaning tool and the inner surface of the jet pump assembly during the cleaning of the jet pump assembly.

A cross-jet nozzle includes a rotor body, in which several channels are recessed or formed running from a nozzle tip in the direction of a stator body, in which at least two front jet nozzles are positioned in the rotor body through at least two front jet channels and oriented so that front jets of a pressurized medium emerging from the front jet channels intersect outside of the rotor body and the rotor body can be mounted to rotate around its longitudinal axis on the stator body, which can be connected to a high-pressure line connection, is introduced safely parallel into tubes by a drive unit of a lance device. The nozzle tip is provided with an outer surface so that the surface is configured convexly arched, dome-like and free of edges and the nozzle tip is formed mirror-symmetric with the longitudinal axis in profile.

The invention relates to a tank cleaning device comprising a tank cleaner (1) having a drive means (18) comprising a drive means component, a nozzle holder (5) rotatable about two axes (D, L) and at least one nozzle (6) arranged on the nozzle holder (5). In order to adapt the tank cleaner quickly to a particular use thereof, it is proposed that at least one of the components drive means (18), drive means component, nozzle holder (5) and nozzle (6) be designed as a replaceable element, that the type of replaceable element be defined by said component, that the tank cleaner (1) include a replaceable element holder, and that a first group (27) comprising at least two replaceable elements of one type be provided. A method for operating a tank cleaning device and a method for cleaning a tank are also proposed.

In a method of forming a coated bag for pre-treating an item stored in the bag, a bag is provided, having a sidewall extending from a closed bottom end to an open top end and defining an interior surface of a cavity. The bag is expanded from a flattened condition to an expanded condition. At least one adhesive dispenser is inserted through the open top end of the bag into the cavity. An adhesive is applied from the at least one inserted adhesive dispenser to form an adhesive coating on the interior surface of the cavity. A particulate dispenser is inserted through the open top end of the bag into the cavity. A particulate is discharged from the inserted particulate dispenser to embed the particulate in the adhesive coating. The adhesive coating is dried to retain the embedded particulate on the interior surface of the sidewall.

A system for field internally coating a pipe joint comprising a polymer application unit, which has a first cart configured to selectively advance inside a pipe; a first and a second tank configured to contain a first and a second polymer component respectively; a mixer to mix the first and the second component; a first and a second pump to feed the first and the second component respectively from the first and the second tank to the mixer; an applicator to apply the polymer to the pipe; and a conduit comprising a free end configured to be placed near the applicator to feed the polymer from the mixer to the applicator.

A system for field internally coating a pipe joint comprising a polymer application unit, which has a first cart configured to selectively advance inside a pipe; a first and a second tank configured to contain a first and a second polymer component respectively; a mixer to mix the first and the second component; a first and a second pump to feed the first and the second component respectively from the first and the second tank to the mixer; an applicator to apply the polymer to the pipe; and a conduit comprising a free end configured to be placed near the applicator to feed the polymer from the mixer to the applicator.

A tooling for wheel spraying reinforcement can uniformly apply a hard coating on the inner rim and the spoke back cavity of a wheel, and can effectively solve the technical problems of uneven spraying and poor roundness. The high-precision spraying of the hard coating of the wheel is realized, and the device has novel structure, advanced technology and high universality.

A node including a single port for bonding to various components in a transport structure is disclosed. In an aspect, the node includes an inlet aperture disposed inside the port. The inlet aperture is configured to inject a fluid into at least one region to be filled by the fluid. For example, the fluid can be an adhesive. In another aspect of the disclosure, a nozzle to be interfaced with a single port node is provided. The nozzle includes a first channel to inject the adhesive. The nozzle may further include a second channel and a third channel. In another aspect of the disclosure, a method of using a single port node is provided.

This disclosure provides methods and systems that comprise a misting unit for atomizing a water-based or solvent-based composition, such as a liquid composition thereof to create a mist. Further, the disclosed methods and systems may include introducing, through an airtight aperture in a pipe or substrate, the mist into the pipe or the substrate. Further still, the disclosed methods and systems may include propelling, by an inert or non-inert gas, the mist onto at least a portion of the interior surface of a substrate connected to or integrated with the pipe within a closed system. The misting unit may be removably or irremovably connected to the pipe for optionally removably connecting to the substrate.

A system for applying a chemical agent within a pipe includes a skid assembly, moveable longitudinally within the pipe. The skid assembly has a bottom positionable on a bottom, internal portion of the pipe. A delivery nozzle is carried by the skid assembly and is coupleable to a chemical agent supply. A dispensing tip delivers a controlled stream of chemical agent within the pipe toward an internal surface of the pipe. The tip is held at or above a surface of fluid carried by the pipe while at least a portion of the skid assembly is positioned below the fluid surface. The dispensing tip is limited from delivering the chemical agent downwardly toward the bottom of the skid assembly such that the dispensing tip delivers the controlled stream of chemical agent upwardly away from the bottom surface of the pipe and upwardly away from the fluid surface.