Disclosed herein is a system for automatically cleaning boiler pipes, which includes a pipe-cleaning tank provided on one side of a casing to store a cleaning solution therein and a tank supply valve provided in the pipe-cleaning tank, so as to allow the cleaning solution stored in the pipe-cleaning tank to automatically flow into a heat exchanger and various pipes inside the casing by means of only a simple operation of manipulating the tank supply valve, thereby making it easy to eliminate scale that has accumulated in the heat exchanger and the pipes.

Disclosed herein is a system for automatically cleaning boiler pipes, which includes a pipe-cleaning tank provided on one side of a casing to store a cleaning solution therein and a tank supply valve provided in the pipe-cleaning tank, so as to allow the cleaning solution stored in the pipe-cleaning tank to automatically flow into a heat exchanger and various pipes inside the casing by means of only a simple operation of manipulating the tank supply valve, thereby making it easy to eliminate scale that has accumulated in the heat exchanger and the pipes.

An air transfer apparatus being an integral or a monolithic structure or enclosure including an integral cavity and other cavities formed from a single piece of material. The integrated cavity includes a plurality of individual dividers forming a plurality of integral segmented cavities where pumps and motors are installed, and a controller which controls the operation of the pump motor such as turns on and off the pump motor and adjusts the speed of the pump motor. The air transfer apparatus is adapted to have at least one heat exchanger pad installed in at least of the sides of the walls and at least one fan installed in the air transfer apparatus.

A foaming cleaner includes a composition that includes water about 50 wt. % to about 60 wt. %, a solvent about 20 wt. % to about 50 wt. %, a surfactant about 0.5 wt. % to about 2.5 wt. %, and a pH and corrosion control agent comprising 30% ammonia solution about 1.25 wt. % to about 1.75 wt. %. The composition is configured to form a foam for cleaning an evaporator coil.

A foaming cleaner includes a composition that includes water about 50 wt. % to about 60 wt. %, a solvent about 20 wt. % to about 50 wt. %, a surfactant about 0.5 wt. % to about 2.5 wt. %, and a pH and corrosion control agent comprising 30% ammonia solution about 1.25 wt. % to about 1.75 wt. %. The composition is configured to form a foam for cleaning an evaporator coil.

A method of electroforming can be used to prepare a heat exchanger by electroforming the heat exchanger on a mandrel having a smooth and conductive surface. The mandrel is in the shape of at least part of the heat exchanger, and is removed from the electroformed heat exchanger.

A method of electroforming can be used to prepare a heat exchanger by electroforming the heat exchanger on a mandrel having a smooth and conductive surface. The mandrel is in the shape of at least part of the heat exchanger, and is removed from the electroformed heat exchanger.

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.

Disclosed is methods and systems for cleaning devices holding fluid such as heat exchanges. The cleaning is performed by using a system such as a transducer assembly including at least one pair of protrusions acting as point-like pressure sources or at least one substantially circular protrusion acting as a substantially circular point-like pressure source, coupled to outer surface of the device to be cleaned. Accordingly, coupling of the system to device is reduced, and as a result, the system is able to operate at its fundamental resonance frequency, while the protrusions still permit power delivery to the device.

Disclosed is methods and systems for cleaning devices holding fluid such as heat exchanges. The cleaning is performed by using a system such as a transducer assembly including at least one pair of protrusions acting as point-like pressure sources or at least one substantially circular protrusion acting as a substantially circular point-like pressure source, coupled to outer surface of the device to be cleaned. Accordingly, coupling of the system to device is reduced, and as a result, the system is able to operate at its fundamental resonance frequency, while the protrusions still permit power delivery to the device.