A system and an apparatus for positioning a plurality of flexible cleaning lances through tubes penetrating a tube sheet of a heat exchanger tube sheet, includes a smart lance tractor drive, a controller, and a tumble box connected to the controller operable to generate and/or distribute electrical power to the AC induction sensor from an air pressure source, supply electrical power to the controller and distribute pneumatic power to pneumatic motors for positioning the tractor drive on the positioner frame. The smart tractor drive includes sensors for detection of mismatch between expected and actual lance positions, sense lance insertion distance and lance removal and provide automated drive reversal operation to remove blockages within tubes being cleaned.

A cleaning apparatus for cleaning a cooling tube array (15) of a heat exchanger has a nozzle carriage (16) movably held on a truss beam, and a plurality of cleaning nozzles (40) mounted to the nozzle carriage. A truss beam has two parallel C-channel rails (20) having back sides that face each other, a tube (22) arranged separate and distant from the C-channel rails and at a different height than the C-channel rails in a cross-sectional plane of the truss beam, and truss supports (24) connecting the rails and the tube; the nozzle carriage has rollers (48) that are arranged for travelling in the C-channel rails. A water intake (82) is coupled to the nozzle manifold (42) and to a hydraulic drive (80) having a mechanical power take-off member (96) that is operably coupled to the nozzle carriage (16) for moving the nozzle carriage.

A cleaning apparatus for cleaning a cooling tube array (15) of a heat exchanger has a nozzle carriage (16) movably held on a truss beam, and a plurality of cleaning nozzles (40) mounted to the nozzle carriage. A truss beam has two parallel C-channel rails (20) having back sides that face each other, a tube (22) arranged separate and distant from the C-channel rails and at a different height than the C-channel rails in a cross-sectional plane of the truss beam, and truss supports (24) connecting the rails and the tube; the nozzle carriage has rollers (48) that are arranged for travelling in the C-channel rails. A water intake (82) is coupled to the nozzle manifold (42) and to a hydraulic drive (80) having a mechanical power take-off member (96) that is operably coupled to the nozzle carriage (16) for moving the nozzle carriage.

A cleaning system and method includes suspending and exploding, adjacent a bank of HRSG finned-tubing, a plurality of generally uniformly spaced detonation cords. Each detonation cord has an explosive grain loading of 18-50 grains per foot. A detonation delay assembly attached to each of the plurality of detonation cords creates a predetermined delay between each detonation cord explosion. After the detonation cords are exploded, a suspended elongated beam, having a transport assembly and a pressurized air blower assembly directs pressurized air towards an adjacent the bank of HRSG finned-tubing as the pressurized air blower assembly is moved along a portion of the beam. A suspension assembly moves the beam, the transport assembly, and the pressurized air blower assembly up or down so that a next portion of the bank of HRSG finned-tubing may be cleaned by the pressurized air.

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.

A system and method for cleaning of heat exchanger tubes including an assembly, an indexer and a communication device provided with specialized software and programming. The indexer includes orthogonally arranged first and second arms. A trolley and sensors are provided on the indexer arms. One or more lances are provided on the trolley to deliver water jets into the openings. Sensors measure displacement as the trolley is moved relative to the heat exchanger's face plate. An operator controls the system from a distance away using the communication device. During setup, the pattern of the face plate is learned and mapped utilizing information from the sensors as one of the inputs. This information is utilized to help navigate the face plate during a subsequent cleaning operation. A kit for retrofitting existing X-Y indexers is also disclosed.

A system and method for cleaning of heat exchanger tubes including an assembly, an indexer and a communication device provided with specialized software and programming. The indexer includes orthogonally arranged first and second arms. A trolley and sensors are provided on the indexer arms. One or more lances are provided on the trolley to deliver water jets into the openings. Sensors measure displacement as the trolley is moved relative to the heat exchanger's face plate. An operator controls the system from a distance away using the communication device. During setup, the pattern of the face plate is learned and mapped utilizing information from the sensors as one of the inputs. This information is utilized to help navigate the face plate during a subsequent cleaning operation. A kit for retrofitting existing X-Y indexers is also disclosed.

A spray washing cart apparatus, including: a cart (10); a nozzle array holder (14); at least one cleaning nozzle array (16.1) arranged on the nozzle array holder (14), the cleaning nozzle array (16.1) including a plurality of spray nozzles (18.1) for spray washing; a water distribution manifold (20, 22) for supplying water to the cleaning nozzle array (16.1); and a water pump (24) connectable to the cleaning nozzle array (16.1) through the manifold (20, 22), wherein the water pump (24) is mounted on the cart (10), wherein the cleaning nozzle array (16.1) extends in a first direction (1), and wherein the nozzle array holder (14) is mounted on a top side of the cart (10) to be linearly moveable in a second direction (2) transverse to the first direction (1).

A spray washing cart apparatus, including: a cart (10); a nozzle array holder (14); at least one cleaning nozzle array (16.1) arranged on the nozzle array holder (14), the cleaning nozzle array (16.1) including a plurality of spray nozzles (18.1) for spray washing; a water distribution manifold (20, 22) for supplying water to the cleaning nozzle array (16.1); and a water pump (24) connectable to the cleaning nozzle array (16.1) through the manifold (20, 22), wherein the water pump (24) is mounted on the cart (10), wherein the cleaning nozzle array (16.1) extends in a first direction (1), and wherein the nozzle array holder (14) is mounted on a top side of the cart (10) to be linearly moveable in a second direction (2) transverse to the first direction (1).