A heat exchanger cleaning arrangement includes a spray tube array configured to be attached to a heat exchanger. The spray tube array includes at least one tube, a plurality of nozzles, and a connector. The plurality of nozzles is configured to port pressurized fluid from the at least one tube toward the heat exchanger. The connector is in operable communication with the spray bar array and is configured such that a pressurized fluid source can be attached to the connector for porting fluid from the pressurized fluid source to the plurality of nozzles.

A cleaning device for a compact HVAC unit includes a flexible belt, and a collection element attached to the flexible belt at a first end of the belt. The collection element and the belt form a collection area therebetween, and wherein the collection element has a port therein at the first end of the belt, the port configured to remove debris collected in the collection area.

A machine that includes a cooling package and a method for cleaning debris from the cooling package is disclosed. The cooling package may include a housing, a cooler, a heat exchanger, a conduit, and plurality of nozzles mounted on the conduit. The cooler may be configured to receive heated machine fluid generated by the machine. The heat exchanger may be configured to convey heat away from the cooler and may include a plurality of fins coupled to and extending outward from the cooler. The plurality of fins may define a plurality of channels. The conduit may be disposed between the housing and the plurality of fins. The plurality of nozzles are configured to discharge a fluid on the fins. The fluid may be air or a release agent. In some embodiments, a release agent may be discharged on the fins prior to the discharge of air on the fins.

An apparatus for the maintenance and operation of an air-cooled heat exchanger (ACHE) includes a plurality of spray tubes provided with spaced-apart nozzles permanently positioned between the finned heat exchange tubes and longitudinally aligned within the region of the finned-tube pitch. The apparatus is operable in several modes, including cleaning where the flow of air is stopped and temperature-controlled pressurized water with an optional cleaning agent is discharged from the nozzles to dislodge dirt and debris from the finned surfaces while simultaneously cooling the hot process liquid. When extremes of ambient air temperatures preclude the forced air fans from achieving the target temperature range of the process liquid passing through the ACHE, refrigerated pressurized cooled water and compressed air in the form of a mist is discharged from the nozzles, or alternatively, pressurized heated air is discharged from the nozzles.

The invention provides a modular horizontal tube evaporator unit, which is characterized in that the modular horizontal tube evaporator unit at least includes a modular heat exchange part designed based on a specific technical parameter, a modular tube box, and a modular quick connect device. The invention also provides an evaporator based on the modular horizontal tube evaporator unit, a cleaning device for the modular evaporator unit, and a cleaning application method thereof.

An apparatus for cleaning an HVAC coil unit comprises a supply and collection assembly with a housing defining an interior space for containing a quantity of cleaning solution. A pump has an inlet positioned to be in fluid communication with the cleaning solution and is operative to deliver the cleaning solution to an outlet of the supply and collection assembly in a volume of at least 40 gallons per minute. Fluid return piping defines a conduit to conduct used cleaning solution from the HVAC coil unit back to a collection inlet. A filter assembly is positioned along the fluid return piping to filter the used cleaning solution. A fluid flow device is operative to provide pressure to move a quantity of the used cleaning solution through the fluid return piping. The used cleaning solution is returned to the interior space through the collection inlet during operation of said fluid flow device.

A system for the maintenance and operation of an air-cooled heat exchanger (ACHE) includes a plurality of spray tubes provided with spaced-apart nozzles permanently positioned between the finned heat exchange tubes and longitudinally aligned within the region of the finned-tube pitch. The system is operable in several modes, including cleaning where the flow of air is stopped and temperature-controlled pressurized water with an optional cleaning agent is discharged from the nozzles to dislodge dirt and debris from the finned surfaces while simultaneously cooling the hot process liquid. When extremes of ambient air temperatures preclude the forced air fans from achieving the target temperature range of the process liquid passing through the ACHE, refrigerated pressurized cooled water and compressed air in the form of a mist is discharged from the nozzles, or alternatively, pressurized heated air is discharged from the nozzles.

The invention relates to a flexible lance for machining or inspecting a tubesheet of a boiler, having a first strip made of a flexible, metallic material and a second strip made of a flexible, metallic material, wherein the second strip is arranged on the first strip in the longitudinal direction, and wherein at least the second strip has a shaped portion extending in the longitudinal direction for receiving a supply line for a machining or inspection head arranged at the free end of the flexible lance, and wherein the first strip is connected to the second strip such that an open side of the shaped portion is covered by the first strip so as to form a guide channel, and wherein at least one edge region of the flexible lance, extending in the longitudinal direction, is formed only by the first strip or the second strip.

A method for cleaning, sanitizing, and disinfecting commercial and residential HVAC system includes applying low pressure cleaning foam to heat-exchange coils of the HVAC system, the cleaning foam including one or more agents that break down organic and/or inorganic fouling dirt or debris, the foam removing and carrying away dirt or debris from the coils. Moving air, such as from the air handler of the HVAC system, pushes or draws the cleaning foam from the first side of the coils toward a second side, the cleaning foam and removed dirt or debris exiting the second side of the coils. The moving air and cleaning foam move co-currently in the same direction through spaces in the coils.

Disclosed is a system for in-process cleaning of external surfaces of heat-transfer tubes of a heat-transfer system that removes or delivers heat from or to a process flow, the system may include: a lance to spray a dry-cleaning mixture comprising gases and dry solids, but not liquids, on external surfaces of heat-transfer tubes of the heat-transfer system to remove scale or fouling from the external surfaces for increasing thermal efficiency of the heat-transfer systems during heat transfer operation.