The invention provides a method of cooling a flowing fluid in a hydrocarbon flow system using a heat exchange cooler apparatus having at least one cooler conduit; and a sensor system. The method comprises flowing the fluid through the cooler conduit from a cooler inlet to a cooler outlet to cool the fluid and operating a cleaning system to deliver energy (e.g. heat) to the cooler conduit to cause solid materials deposited on the interior of the cooler to be released into the flowing fluid. A cooler sensor data set obtained from the sensor system is compared with a reference data set to verify the performance of the cleaning system.

The invention provides a method of cooling a flowing fluid in a hydrocarbon flow system using a heat exchange cooler apparatus having at least one cooler conduit; and a sensor system. The method comprises flowing the fluid through the cooler conduit from a cooler inlet to a cooler outlet to cool the fluid and operating a cleaning system to deliver energy (e.g. heat) to the cooler conduit to cause solid materials deposited on the interior of the cooler to be released into the flowing fluid. A cooler sensor data set obtained from the sensor system is compared with a reference data set to verify the performance of the cleaning system.

A piping system of a steam turbine plant is provided with: steam piping connected to a steam turbine; bypass piping which branches from the steam piping at a branching portion and which is connected to a condenser; a steam check valve provided between the branching portion of the steam piping and the steam turbine; and a turbine bypass valve provided in the bypass piping. A piping system cleaning method includes the steps of: connecting at least one valve of the steam check valve and the turbine bypass valve and a connecting portion provided between the turbine bypass valve of the bypass piping and the condenser, by using temporary piping having a foreign matter collecting portion; closing a flow path on the outlet side of the valve; cleaning the steam piping by supplying steam to the steam piping; and sending the steam to the condenser through the temporary piping.

A piping system of a steam turbine plant is provided with: steam piping connected to a steam turbine; bypass piping which branches from the steam piping at a branching portion and which is connected to a condenser; a steam check valve provided between the branching portion of the steam piping and the steam turbine; and a turbine bypass valve provided in the bypass piping. A piping system cleaning method includes the steps of: connecting at least one valve of the steam check valve and the turbine bypass valve and a connecting portion provided between the turbine bypass valve of the bypass piping and the condenser, by using temporary piping having a foreign matter collecting portion; closing a flow path on the outlet side of the valve; cleaning the steam piping by supplying steam to the steam piping; and sending the steam to the condenser through the temporary piping.

The present disclosure relates to a method and apparatus for cleaning a 3D printed article, in particular a 3D printed heat exchanger. After 3D printing, an article may have internal passages formed from bonded powder and said passages may contain unbonded powder that needs to be removed before further use of/processing of the article. To remove this unbonded powder, the article is filled with a cleaning fluid and vibrated. The cleaning fluid is then pumped out of the article and past a sensor that generates a magnetic field. The sensor detects the presence of powder particles in the fluid by detecting a perturbation of the magnetic field caused by said particles. The fluid is then filtered and returned to a reservoir for use. The sensor may indicate the article is sufficiently clean when a detected concentration of particles in the fluid drops below a threshold.

The present disclosure relates to a method and apparatus for cleaning a 3D printed article, in particular a 3D printed heat exchanger. After 3D printing, an article may have internal passages formed from bonded powder and said passages may contain unbonded powder that needs to be removed before further use of/processing of the article. To remove this unbonded powder, the article is filled with a cleaning fluid and vibrated. The cleaning fluid is then pumped out of the article and past a sensor that generates a magnetic field. The sensor detects the presence of powder particles in the fluid by detecting a perturbation of the magnetic field caused by said particles. The fluid is then filtered and returned to a reservoir for use. The sensor may indicate the article is sufficiently clean when a detected concentration of particles in the fluid drops below a threshold.

Disclosed is a cleaning system (1) for cleaning the plate channels (2) in a plate heat exchanger (3) during normal use of the heat exchanger (3), wherein the heat exchanger (3) comprises an inflow channel (4) through which a fluid enters the heat exchanger (3) and an outflow channel (5) through which the fluid exits the heat exchanger (3). A stack (6) of heat exchanger plates (7) is arranged between the inflow channel (4) and the outflow channel (5) so that the heat exchanger plates (7) form plate channels (2) between the inflow channel (4) and the outflow channel (5) through which the fluid may pass. The cleaning system (1) comprises # a bypass conduit (8) arranged to establish a bypass flow of the fluid between the inflow channel (4) and the outflow channel (5) bypassing the stack (6) of heat exchanger plates (7), # a cleaning head (9) comprising a cleaning aperture (10) connected to the bypass conduit (8), wherein the cleaning aperture (10) is arranged to face the stack (6) of heat exchanger plates (7) during normal use of the cleaning head (9) in the heat exchanger (3),displacement means (11) arranged to displace the cleaning head (9) linearly in a displacement direction in the inflow channel (4) or the outflow channel (5), and pressure altering means (12) arranged to alter the pressure in the bypass conduit (8), wherein the projected area (13) of the cleaning head (9) in the displacement direction is smaller than the cross-sectional area in the displacement direction of the inflow channel (4) or the outflow channel (5) in which the cleaning head (9) is placed to allow the fluid to pass the cleaning head (9) in the inflow channel (4) or the outflow channel (5). Furthermore, a plate heat exchanger (3) and a method for cleaning the plate channels (2) in a plate heat exchanger (3) is disclosed.

Disclosed is a cleaning system (1) for cleaning the plate channels (2) in a plate heat exchanger (3) during normal use of the heat exchanger (3), wherein the heat exchanger (3) comprises an inflow channel (4) through which a fluid enters the heat exchanger (3) and an outflow channel (5) through which the fluid exits the heat exchanger (3). A stack (6) of heat exchanger plates (7) is arranged between the inflow channel (4) and the outflow channel (5) so that the heat exchanger plates (7) form plate channels (2) between the inflow channel (4) and the outflow channel (5) through which the fluid may pass. The cleaning system (1) comprises # a bypass conduit (8) arranged to establish a bypass flow of the fluid between the inflow channel (4) and the outflow channel (5) bypassing the stack (6) of heat exchanger plates (7), # a cleaning head (9) comprising a cleaning aperture (10) connected to the bypass conduit (8), wherein the cleaning aperture (10) is arranged to face the stack (6) of heat exchanger plates (7) during normal use of the cleaning head (9) in the heat exchanger (3),displacement means (11) arranged to displace the cleaning head (9) linearly in a displacement direction in the inflow channel (4) or the outflow channel (5), and pressure altering means (12) arranged to alter the pressure in the bypass conduit (8), wherein the projected area (13) of the cleaning head (9) in the displacement direction is smaller than the cross-sectional area in the displacement direction of the inflow channel (4) or the outflow channel (5) in which the cleaning head (9) is placed to allow the fluid to pass the cleaning head (9) in the inflow channel (4) or the outflow channel (5). Furthermore, a plate heat exchanger (3) and a method for cleaning the plate channels (2) in a plate heat exchanger (3) is disclosed.

The present disclosure relates generally to water jet equipment. Specifically, water jet equipment that includes a support frame comprised of a plurality of stackable trolleys 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 trolleys 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.