An apparatus for cleaning HVAC cooling coils comprises a supply and collection assembly having a housing defining an interior space for containing a quantity of cleaning solution. A pump has a pump inlet positioned to be in fluid communication with the cleaning solution and is operative to deliver the cleaning solution to a supply outlet of the supply and collection assembly. A vacuum source has a vacuum inlet positioned to be in fluid communication with an ullage space above the quantity of cleaning solution such that the vacuum source creates negative pressure in the ullage space during operation. A collection inlet is in fluid communication with the ullage space such that the cleaning solution is returned to the interior space through the collection inlet during operation of the vacuum source. A nozzle device is in fluid communication with the supply outlet via outlet piping so as to deliver the cleaning solution to a surface of an HVAC coil unit. A fluid return tool is in fluid communication with the collection inlet via return piping so as to collect used cleaning solution from the HVAC coil unit.

A heat exchanger end cover integrated with a rubber ball cleaning apparatus is disclosed, including a ball collector and a booster pump which are arranged outside the heat exchanger end cover, and a ball-receiving filter screen arranged inside the heat exchanger end cover. The heat exchanger end cover is connected to a cooling water inlet pipe joint and a cooling water outlet pipe joint, the cooling water inlet pipe joint is provided with a water suction port and a ball-dispensing port, and the cooling water outlet pipe joint is provided with a water discharge port and a ball-receiving port.

Methods and systems for cleaning inner surfaces of tubes in a heat exchanger. Some systems include a cleaning device having a nozzle configured to inject cleaning fluid into first and second tubes to perform different first and second cleaning cycles on the tubes, respectively, a controller configured to determine delivery parameters for the cleaning cycles based on a characteristic of each tube, and to control the cleaning device to perform the cleaning cycles based on the delivery parameters. Some methods include determining, with a controller, a tube in the heat exchanger engaged with a nozzle of a cleaning device for injecting a cleaning fluid into the tube during a cleaning cycle, a characteristic of the tube, and a delivery parameter of the cleaning cycle for the tube based on the characteristic of the tube; and performing the cleaning cycle for the tube based on the delivery parameter.

Process for steam cracking of thermally unstable feedstock such as plastic pyrolysis oil, or olefin rich hydrocarbon cuts such as cracked gasoline, coker naphtha or diesel. The invention is also about a heat exchanger suitable for that process.

The present invention is directed to systems and methods for cleaning a component inside a machine, such as an evaporator coil inside an air conditioner. A pump is connected to a controlling device. The pump is also connected to a metering device. The metering device is connected to one or more reservoirs. The metering device is also connected to one or more wands. Each wand is positioned inside a housing containing the component to spray cleaning solution, drawn from the reservoirs by the metering device, onto a face of the component. To perform the cleaning of the component, the controlling device disables the machine. The controlling device then activates the pump. The pump causes cleaning solution to be drawn from the one or more reservoirs into the metering device, which then transfers the cleaning solution into the wands. The controlling device then allows the machine to resume operation.

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.

The invention concerns a system for intercepting and collecting bodies in a flow of a fluid, comprising: a pipe portion (18) comprising an inner face that defines an axial inner passage for the flow, a filtering surface (25) including an upstream face (25a) and extending transversely in the passage so as to intercept, by its upstream face, bodies conveyed by the flow whilst leaving exposed a plurality of collection openings (26a, 26b) between the filtering surface and the inner face, a cleaning device (30) that is arranged across from the upstream face (25a), the device (30) and the filtering surface (25) being in motion with respect to one another such that each zone of the upstream face is mechanically swept by the device during each alternating relative back and forth movement in order to orient the bodies intercepted by the upstream face (25a) toward the collection openings for said bodies.

A method of cleaning an HVAC coil unit located above a drain basin comprises providing a supply and collection assembly having a reservoir containing liquid cleaning solution, a pump operative to output the liquid cleaning solution through a supply outlet, and a vacuum source operative to draw in used liquid cleaning solution through a collection inlet. A nozzle device is in fluid communication with the supply outlet. A fluid return tool is in fluid communication with the collection inlet, and positioning the fluid return tool in the drain basin. A filter assembly is located between the fluid return tool and the collection inlet in the fluid return path. A further step of the method involves moving the delivery face of the nozzle device across the surface of the HVAC coil unit to deliver the cleaning solution into areas between fins thereof.

An apparatus for cleaning HVAC cooling coils comprises a supply and collection assembly having a housing defining an interior space for containing a quantity of cleaning solution. A pump has a pump inlet positioned to be in fluid communication with the cleaning solution and is operative to deliver the cleaning solution to a supply outlet of the supply and collection assembly. A vacuum source has a vacuum inlet positioned to be in fluid communication with an ullage space above the quantity of cleaning solution such that the vacuum source creates negative pressure in the ullage space during operation. A collection inlet is in fluid communication with the ullage space such that the cleaning solution is returned to the interior space through the collection inlet during operation of the vacuum source. A nozzle device is in fluid communication with the supply outlet via outlet piping so as to deliver the cleaning solution to a surface of an HVAC coil unit. A fluid return tool is in fluid communication with the collection inlet via return piping so as to collect used cleaning solution from the HVAC coil unit.

An effluent container may have multiple sheets of material attached together to form a generally rectangular shape, having a front sheet, a back sheet, two side sheets, and a bottom sheet; a securing system attached to a free end of at least one of the sheets and configured to attach the effluent container to a support structure; and a drain located on one of the sheets, proximate to the bottom sheet, the drain configured to provide selective fluid communication between the interior of the container and an outside of the container. A method of forming an effluent container may also be provided.