Collection device for collecting elements on at least one bevel of a circular plate, comprising: a base comprising a collection groove intended to receive a collection liquid, a plate-carrier able to rotate the plate about itself and such that an outer periphery of the plate penetrates into the collection groove, wherein the collection device comprises means for visualising the interior of the collection groove, enabling at least one image to be acquired of the contact region between the collection liquid and a face of the plate.

A particle collection device includes a collection sheet and a frame on which the collection sheet is mounted. The collection sheet includes a base sheet, a magnetic substance, and a metal protrusion disposed on the base sheet to be adjacent to the magnetic substance.

A particle collection device includes a collection sheet and a frame on which the collection sheet is mounted. The collection sheet includes a base sheet, a magnetic substance, and a metal protrusion disposed on the base sheet to be adjacent to the magnetic substance.

Disclosed is an automatic die cleaning device with reusable cleaning fluid. The automatic die cleaning device includes a robot, a cleaning fluid cyclic-spraying system and a die overturning mechanism. The automatic die cleaning device can spray the cleaning fluid to a die to clean oil stains off the surface of the wheel die, thus realizing the function of automatically cleaning the oil stains off the surface of the die; and the automatic die cleaning device also has the function of reusing the cleaning fluid, thereby saving the cleaning fluid and reducing the influence on the environment. The cleaned die surface is smooth, and the effect is ideal. The automatic die cleaning device reduces the labor intensity, meets the requirement of high-efficiency production, and improves the production efficiency.

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 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 method and washer head assembly for washing a surface of a solar panel, includes lowering a washer head frame onto a solar panel. The washer head frame includes a washer frame cross member having a swivel mounted thereon. The swivel is mounted below a center of gravity. The frame includes a top frame rail and a bottom frame rail. A plurality of lath brushes together extend, generally, the length of the washer head frame. The lath brushes are made up to include a plurality of bristles being of sufficient number to support the washer head frame against the surface of the solar panel without damage to the solar panel. The lightness of the frame and the resilience of the brush bristles assure that the washer head frame will not come into damaging contact with the solar panel.

A method and washer head assembly for washing a surface of a solar panel, includes lowering a washer head frame onto a solar panel. The washer head frame includes a washer frame cross member having a swivel mounted thereon. The swivel is mounted below a center of gravity. The frame includes a top frame rail and a bottom frame rail. A plurality of lath brushes together extend, generally, the length of the washer head frame. The lath brushes are made up to include a plurality of bristles being of sufficient number to support the washer head frame against the surface of the solar panel without damage to the solar panel. The lightness of the frame and the resilience of the brush bristles assure that the washer head frame will not come into damaging contact with the solar panel.

A filter cleaning system includes a storage unit that stores liquid that is passed through a filter; a liquid supply path that sends the liquid stored in the storage unit to the filter; a circulation path that returns the liquid sent from the filter to the storage unit; a first supply unit that supplies a first liquid to the storage unit; and a second supply unit that supplies a second liquid having a surface tension lower than that of the first liquid and an affinity for the first liquid, to the storage unit.

A filter cleaning system includes a storage unit that stores liquid that is passed through a filter; a liquid supply path that sends the liquid stored in the storage unit to the filter; a circulation path that returns the liquid sent from the filter to the storage unit; a first supply unit that supplies a first liquid to the storage unit; and a second supply unit that supplies a second liquid having a surface tension lower than that of the first liquid and an affinity for the first liquid, to the storage unit.