The present disclosure relates generally to water jet equipment. Specifically, water jet equipment that includes a support frame comprised of a plurality of stackable trollies that support a plurality of lances as those lances are inserted into and withdrawn from heat exchanger tubes during a cleaning operation of the same. A method of cleaning elongated tubes by positioning and rotating the lances while moving in a first direction is further provided.

The present disclosure relates generally to water jet equipment. Specifically, water jet equipment that includes a support frame comprised of a plurality of stackable trollies that support a plurality of lances as those lances are inserted into and withdrawn from heat exchanger tubes during a cleaning operation of the same. A method of cleaning elongated tubes by positioning and rotating the lances while moving in a first direction is further provided.

A cooling device includes a refrigerant flow path provided in a propulsion system of a ship; an electric pump configured to cause a refrigerant or a cleaning medium to flow through the refrigerant flow path; and a control unit configured to control operations of the propulsion system and the electric pump. The control unit executes each of a plurality of operating modes including a first operating mode (normal operating mode) which drives the propulsion system and the electric pump and causes the refrigerant to flow through the refrigerant flow path, and a second operating mode (maintenance mode) which drives the electric pump without driving the propulsion system and causes the cleaning medium to flow through the refrigerant flow path.

A cooling device includes a refrigerant flow path provided in a propulsion system of a ship; an electric pump configured to cause a refrigerant or a cleaning medium to flow through the refrigerant flow path; and a control unit configured to control operations of the propulsion system and the electric pump. The control unit executes each of a plurality of operating modes including a first operating mode (normal operating mode) which drives the propulsion system and the electric pump and causes the refrigerant to flow through the refrigerant flow path, and a second operating mode (maintenance mode) which drives the electric pump without driving the propulsion system and causes the cleaning medium to flow through the refrigerant flow path.

A Knuckle Jointed Lance (KJL), comprising a segmented lance including a plurality of elongate and hollow KJL segments in a concatenated string thereof. The first segment end of one KJL segment is rotatably connected to the second segment end of a neighboring KJL segment via a pinned connection. Neighboring pairs of KJL segments together provide an interlocking toothed connection such that each interlocking toothed connection restrains relative torsional displacement between the neighboring pair of KJL segments. In other embodiments, pinned connections also provide ears, each with cooperating ear ledges and ear ledge recesses to strengthen the pinned connection.

A Knuckle Jointed Lance (KJL), comprising a segmented lance including a plurality of elongate and hollow KJL segments in a concatenated string thereof. The first segment end of one KJL segment is rotatably connected to the second segment end of a neighboring KJL segment via a pinned connection. Neighboring pairs of KJL segments together provide an interlocking toothed connection such that each interlocking toothed connection restrains relative torsional displacement between the neighboring pair of KJL segments. In other embodiments, pinned connections also provide ears, each with cooperating ear ledges and ear ledge recesses to strengthen the pinned connection.

A heat exchanger including a body. The body includes a plurality of heat transfer pathways, and a flushing manifold formed with the body of the heat exchanger. The flushing manifold includes a plurality of nozzles oriented so as to spray a flushing fluid onto, into, or both onto and into one or more of the plurality of heat transfer pathways. A method of flushing particulates from a heat exchanger including supplying a flushing fluid through a flushing manifold formed with a body of a heat exchanger, and spraying the flushing fluid onto, into, or both onto and into one or more heat transfer pathways using one or more nozzles in fluid communication with the flushing manifold.

A process for removing or reducing the accumulation of foulant within furnaces and heat exchangers in industrial systems such as an oil refinery by introducing a periodic steam blast. The steam blast is directed into the fluid stream from which the foulants form on to the heat exchanger surfaces. The steam blast increases the flow rates, creates turbulence and increases the temperature within the heat exchanger to dislodge foulant in both a soft and hardened states from internal surfaces upon which foulants have adhered and accumulated.

A process for removing or reducing the accumulation of foulant within furnaces and heat exchangers in industrial systems such as an oil refinery by introducing a periodic steam blast. The steam blast is directed into the fluid stream from which the foulants form on to the heat exchanger surfaces. The steam blast increases the flow rates, creates turbulence and increases the temperature within the heat exchanger to dislodge foulant in both a soft and hardened states from internal surfaces upon which foulants have adhered and accumulated.

A liquid dosing system is disclosed and can include an inlet conduit and an outlet conduit. The inlet and outlet conduits can each be configured to fluidly communicate a heat exchanger of a water heater. The liquid dosing system can include one or more connector conduits configured to fluidly connect the inlet conduit and the outlet conduit to define a fluid circuit by at least the inlet conduit, the heat exchanger, the outlet conduit, and the one or more connector conduits. The liquid dosing system can include a pump configured to pump water through the fluid circuit, a reservoir configured to store an additive, and a dosing device configured to dispense the additive into the fluid circuit.