In a system and method of working tubes coupled to a tubesheet having a number of holes, wherein each hole in fluid communication with one of the tubes, an end-effector is positioned by a robot in coarse or rough alignment with a first hole in the tubesheet. Via lasers positioned on the end-effector, laser spots are formed on a surface of the tubesheet adjacent the first hole. The laser spots are detected by a camera and the alignment of the end-effector relative to the first hole in the tubesheet is refined via the robot based on the detected pattern of laser spots. The tool is then moved into the tube that is in fluid communication with the first hole in the tubesheet to work on (inspect, plug, sleeve or weld) the tube.

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).

The present disclosure relates to a soot blower including: a lance tube which includes one end that reciprocally moves in one direction on a surface of an inlet port of a flow path of the tubular heat exchanger; a drive unit which is connected to the lance tube and reciprocally moves and rotates the lance tube in the one direction; a first nozzle which is connected to the one end of the lance tube and discharges steam to the inlet port; and a second nozzle which is disposed adjacent to the first nozzle and connected to the one end of the lance tube and discharges solid particles to the inlet port, and the present disclosure relates to a method of cleaning a tubular heat exchanger by using the soot blower.

A steam soot blowing device is provided, including: a steam sootblower, a first pipe communicating with the steam sootblower; and nozzle assemblies communicating with the first pipe, including a first nozzle assembly and a second nozzle assembly, wherein the first nozzle assembly includes a throttle pipe with one end communicating with the first pipe, and a sprayer communicating with the other end of the throttle pipe, and diameter of an inlet of the sprayer is smaller than diameter of an outlet thereof; the second nozzle assembly includes a distribution pipe communicating with the first pipe and at least one nozzle communicating with the distribution pipe, wherein steam jet velocity at the outlet of the sprayer is greatly smaller than steam jet velocity at an outlet of the nozzle.

A steam soot blowing device is provided, including: a steam sootblower, a first pipe communicating with the steam sootblower; and nozzle assemblies communicating with the first pipe, including a first nozzle assembly and a second nozzle assembly, wherein the first nozzle assembly includes a throttle pipe with one end communicating with the first pipe, and a sprayer communicating with the other end of the throttle pipe, and diameter of an inlet of the sprayer is smaller than diameter of an outlet thereof; the second nozzle assembly includes a distribution pipe communicating with the first pipe and at least one nozzle communicating with the distribution pipe, wherein steam jet velocity at the outlet of the sprayer is greatly smaller than steam jet velocity at an outlet of the nozzle.

A frame apparatus for holding a flexible lance positioning drive device adjacent to and spaced from a heat exchanger tube sheet includes an upper guide rail carrying a movable carriage supporting a drive positioner rail having a drive support carriage and an air motor drive assembly fastened to each of the carriages, each air motor drive assembly comprising an air motor having a shaft driving a spur gear through a worm gear reducer, wherein the spur gear is carried within a spur gear housing fastened to the worm gear reducer, and the air motor assembly is fastened to the carriage via the spur gear housing. The spur gear housing is selectively rotatable on the carriage between a locked position with the spur gear engaging the rail to which the carriage is mounted and an unlocked position with the spur gear disengaged with the rail to which the carriage is mounted.

A heat exchanger cleaning device is provided. The cleaning device includes a drive motor configured to rotate a gearbox, a slip clutch, and a support beam about a first axis. The support beam carries a thread rod, a second motor, and one or more carriage assemblies. The carriage assemblies move linearly as the second motor rotates the threaded rod. The carriage assemblies include a support tube for receiving an ultra-high pressure tube therethrough. The carriage assemblies adjust relative to the heat exchanger such that the UHP tube may be inserted through the support tube into a hole of the heat exchanger. Therein the UHP tube may be advanced to clean sediment from the heat exchanger tube.

An apparatus is disclosed that is designed to be able to clean HVAC condensers. The apparatus comprises a plurality of pipes that facilitates the passage of water through them allowing water and/or a cleaning solution to clean the condenser by spraying the condenser with sprayers without having to move the apparatus. The apparatus is designed so as to be able to spray every part of the condenser without having to move the apparatus. The apparatus may also have a timer associated with it that allows the condenser to be cleaned at periodic intervals.

A spray mat for spraying cleaning fluid under pressure onto the outer surfaces of heat exchange tubes that extend in rows in a heat exchanger, the rows of tubes being spaced apart from each other with a generally planar space defined between each two adjacent rows, the spray mat formed of a plurality of spray strips, each spray strip including: (a) a base part having upper and lower surfaces, (b) a fluid inlet, (c) a plurality of spray nozzles spaced apart and secured on the upper and lower surfaces, and (d) a duct system for fluid coupling the fluid inlet to the spray nozzles, each spray strip is bendably and fluid coupled to the next forming a flexible spray mat which is positionable into and removable out of selected ones of the planar spaces between each two adjacent rows of the heat exchange tubes.