Abstract: Provided in the present disclosure are a cleaning apparatus, a cleaning device, and a changeover valve assembly. The cleaning apparatus includes a main body, a vacuum motor and a heating air output assembly, where an axial direction of the vacuum motor is parallel to a forward direction of the main body, an air inlet end of the vacuum motor is arranged on one side of the vacuum motor facing the forward direction, and projections of the air inlet end of the vacuum motor and the heating air outlet assembly on a horizontal plane at least partially coincide, such that the efficiency of sewage recovery can be improved, and sewage residue in an area that is cleaned is thus reduced.

Abstract: Provided are an electronic atomization device and an atomization assembly thereof, and a manufacturing method of the atomization assembly. The atomization assembly includes a porous matrix and a heating body. The porous matrix includes an atomization face. The heating body includes a heating part and at least one fixing part connected to the heating part. The at least one fixing part is embedded in the porous matrix, such that the heating body is mounted on the porous ceramic matrix and the heating part is arranged to correspond to the atomization face. The beneficial effect is that mounting of the heating body is realized by having the fixing part embedded in the porous matrix to improve reliability of the atomization assembly.

Abstract: A cleaning system, a cleaning device and a control method therefor, are associated with a floor brush assembly that includes a roller brush housing, a roller brush, a roller brush cover. The roller brush cover and the floor brush housing enclose a roller brush cavity for fitting with the roller brush. The roller brush cover is configured to be operable in a first or second position relative to the floor brush housing. In the first position, there is a first contact area between the roller brush cover and the roller brush. In the second position, there is a second contact area between the roller brush cover and the roller brush. The first contact area is greater than or equal to zero, but less than the second contact area. The inner wall of the roller brush cover can be cleaned by the roller brush.

Abstract: The embodiment of the present disclosure provides a cleaning device, which includes a power module, a vacuum cleaner module, and a surface wet cleaner module. The power module includes a power assembly and a motor assembly that are connected to each other. The vacuum cleaner module includes an air suction assembly, a dust collection assembly, and a filter assembly that are sequentially communicated, and the vacuum cleaner module has a first mounting position that is configured to be connected and matched with the power module. The surface wet cleaner module includes a floor brush and a body, and the body has a second mounting position that is configured to be connected and matched with the power module.

Abstract: A cooling device system for cooling optical fiber includes a plurality of bodies (202), each body having a top surface (210) and an opposing bottom surface (212); an opening (204) within each of the plurality of bodies extending from the top surface through the body to the bottom surface, wherein the opening is configured to pass an optical fiber (10) through the body; and one or more air outlets (208) within the body configured to direct air to contact the optical fiber as it passes through the opening, wherein the air flowing out of the one or more openings has an average velocity of about 20 m/s to about 350 m/s.

Abstract: A fiber draw furnace includes a heated section configured to contain and heat a glass source from which an optical fiber is drawn. A lower extended muffle having a first end and a second end. A gas screen is coupled to the second end of the lower extended muffle configured to allow a gas to flow into the lower extended muffle. A reclaim cylinder is coupled to the lower extended muffle including an outer housing defining a reclaim chamber. A plurality of reclaim ports are tangentially coupled to the outer housing and an inner housing is positioned within the outer housing.

Abstract: In some embodiments, a method for processing an optical fiber includes: drawing an optical fiber through a draw furnace, conveying the optical fiber through a flame reheating device downstream from the draw furnace, wherein the flame reheating device comprises one or more burners each comprising: a body having a top surface and an opposing bottom surface, an opening within the body extending from the top surface through the body to the bottom surface, wherein the optical fiber passes through the opening, and one or more gas outlets within the body; and igniting a flammable gas provided by the one or more gas outlets to form a flame encircling the optical fiber passing through the opening, wherein the flame heats the optical fiber by at least 100 degrees Celsius at a heating rate exceeding 10,000 degrees Celsius/second.

Abstract: A floor brush, a cleaning device and a roller brush disassembly method; wherein the floor brush includes: a floor brush body, one end of the floor brush body being provided with a driving means; a roller brush, and one end of the roller brush is drivable-connected to the driving means; a driving shaft of the driving means is capable of rotating in a first direction of rotation, causing the roller brush to move relatively to the driving shaft and be off the preset mounting position; the first direction of rotation is opposite to the direction of rotation of the roller brush when performing cleaning. Roller brush is driven to move by means of the driving means, and can be quickly disassembled from the floor brush body.

Abstract: A method of heating an optical fiber, the method including flowing gas from a common gas channel into one or more gas outlets of a burner, the common gas channel encircling an aperture of the burner. The method further including igniting the gas to form a flame and heating the fiber with the flame as the fiber passes through the aperture. The one or more gas outlets opening into the aperture such that each gas outlet has a gas outlet bore terminating at an inward-facing wall of the burner that defines the aperture. And the gas outlet bore being oriented at an angle ?1 defined between the gas outlet bore and the inward-facing wall of the burner, downstream of the gas outlet bore, that is greater than or equal to 10 degrees and less than or equal to 70 degrees.

Abstract: A glass tube manufacturing apparatus for manufacturing glass tubing includes a glass delivery tank with molten glass. The glass delivery tank has a bottom opening. A bell has an upper portion with an outer diameter located at the bottom opening. A heating apparatus is at least partially disposed around the bell. The heating apparatus includes a heated portion and a muffle portion located below the heated portion. A lower extended muffle structure extends downwardly from the muffle portion. The lower extended muffle structure extending about the glass tubing on all sides to manage convective airflow therethrough.

Abstract: Provided are a tray and a cleaning apparatus system. The tray includes: a tray body, where a roller brush accommodation region is arranged on an outer surface of the tray body, and a mounting cavity is provided in the tray body; and a drying unit, where the drying unit is mounted in the mounting cavity, and the drying unit runs to perform drying treatment on the roller brush accommodation region and an object in the roller brush accommodation region. The tray may be used with a cleaning machine. When the cleaning machine is disposed on the tray, a roller brush on the cleaning machine is located in the roller brush accommodation region, and the drying unit runs to perform drying treatment on the roller brush accommodation region and the object in the roller brush accommodation region.

Abstract: A method of producing bi-modal particles includes the steps of igniting a first precursor gas using a primary burner thereby producing a first plurality of particles of a first size, fluidly transporting the first plurality of particles down a particle tube, igniting a second precursor gas using a secondary burner thereby producing a second plurality of particles of a second size, flowing the second plurality of particles into the first plurality of particles, and capturing the first and second plurality of particles.

Abstract: A method of processing an optical fiber that includes drawing an optical fiber along a fiber pathway through a hollow light pipe, wherein the hollow light pipe comprises a first end having an opening with a radius Rp, a second end and a pipe body comprising a chamber extending from the first to the second end, the fiber pathway extending through the pipe body, and a reflective coating is disposed on the pipe body, and directing a light from a directed light source into the hollow light pipe through the opening such that the light is reflected by the reflective coating while propagating in the hollow light pipe, the optical fiber absorbing the light reflected by the reflective coating, wherein the light enters the opening of the hollow light pipe at an input angle in a range of from 10° to 70° with respect to the fiber pathway.

Abstract: A method of processing an optical fiber includes drawing the optical fiber from a heated glass source, reheating the optical fiber, and cooling the optical fiber under vacuum at a cooling rate less than the cooling rate of the optical fiber in air at 25° C. and 1 atm. Cooling the optical fiber under vacuum is conducted after reheating the optical fiber. Cooling the optical fiber under vacuum reduces the rate of heat transfer from the optical fiber, which may enable further relaxation of the glass and reduction in the fictive temperature of the optical fiber. A system for processing an optical fiber includes a furnace containing a fiber preform, a first positioner, a reheating device, and a treatment device downstream of the reheating device, the treatment device operable to cool the optical fiber under vacuum to reduce the rate of heat transfer from the optical fiber.

Abstract: Provided are a vacuum head, a collection bin, a cleaning tray, a filter assembly, and a cleaning apparatus. The cleaning apparatus includes: a housing, a rolling brush, and a cleaning assembly, where the cleaning assembly includes a cleaning medium inlet and a plurality of cleaning medium spray orifices; the plurality of cleaning medium spray orifices face the rolling brush, and lengths of flow channels from various cleaning medium spray orifices to the cleaning medium inlet are equal. According to the present disclosure, a cleaning medium may be sprayed to a rolling brush surface uniformly, so that the rolling brush may be cleaned completely, thereby improving the cleaning efficiency and the cleanliness of the rolling brush.

Abstract: A method of forming an optical fiber preform includes the steps: igniting a burner having a fume tube assembly to produce a first spray size of silicon dioxide particles; depositing the silicon dioxide particles on a core cane to produce a soot blank; and adjusting an effective diameter of an aperture of the fume tube assembly to produce a second spray size of the silicon dioxide particles. The second spray size is larger than the first spray size.

Abstract: A system for processing optical fiber includes a draw furnace, a fiber conveyance pathway extending between an upstream end positioned at the draw furnace and a downstream end positioned opposite the upstream end, where optical fiber is conveyed along the fiber conveyance pathway from the upstream end to the downstream end in a fiber conveyance direction, a muffle in communication with the draw furnace and positioned downstream of the draw furnace, a second cooling device annularly surrounding the fiber conveyance pathway downstream from the draw furnace, the second cooling device including one or more second cooling device heating elements and a first cooling device positioned between the draw furnace and the second cooling device, wherein the first cooling device directs a fluid to contact the optical fiber.

Abstract: Laminated glass-based articles and methods of manufacture are disclosed. A glass-based article includes a glass-based substrate having a first surface and a second surface opposing the first surface defining a substrate thickness (t) in a range of about 0.1 millimeters to 3 millimeters, the glass-based substrate having a compressive region having a first compressive stress CS maximum at the first surface of the glass-based article extending to a depth of compression (DOC) and second local CS maximum at a depth of at least 25 ?m from the first surface, wherein the glass-based substrate comprises a glass-based core substrate having a first side and a second side, the glass-based core substrate sandwiched between a glass-based first cladding substrate and a glass-based second cladding substrate, the first cladding substrate and second cladding substrate directly bonded to the first side and the second cladding substrate directly bonded to the second side.

Abstract: Provided are a cleaning machine, a cleaning device, an information display method thereof, and a storage medium. A display is additionally arranged on a main body of the cleaning machine to display working state information of at least one component on the cleaning machine, thereby visually displaying a working state of the cleaning machine. A user may know about a working state of a component on the cleaning machine visually, which contributes to improving user experiences.

Abstract: An optical fiber draw furnace system including a muffle, a downfeed handle, and a downfeed handle extension portion. The downfeed handle is moveably disposed within an inner cavity of the muffle. The downfeed handle extension portion is connected to the downfeed handle and moveably disposed within the inner cavity of the muffle. Furthermore, the downfeed handle extension portion forms a first gap between an outer surface of the downfeed handle extension portion and an inner surface of the muffle, the first gap having a length in a range of about 0.001 m to about 0.2 m.