A system for and method of improving fluid flow is provided. The system includes a discharge manifold defining a primary flow path partially obstructed by one or more flow diverter. The flow diverter includes an obtrusion pair, each obtrusion of the obtrusion pair extending from a rear wall of the discharge manifold into an interior area of the discharge manifold, thereby creating a void along the primary flow path. The system further includes a first nozzle extending through the primary flow path and into the void such that a nozzle inlet of the first nozzle is positioned at least partially within the void. The system further includes a plurality of subsequent nozzles, each of the first and subsequent nozzles defining a respective secondary flow path for directing fluid away from the discharge manifold. The method includes utilizing obtrusion pairs to reduce or eliminate hydraulic skip.

Substrates are immersed in a treatment fluid stored in a treatment chamber, and subjected to a surface treatment. A first lid and a second lid cover an upper opening of the treatment chamber. The first lid and the second lid each include sloped surfaces. At least a part of the first lid and the second lid is immersed in the treatment fluid. During the treatment on the substrates, a plurality of bubble supply pipes eject bubbles into the treatment fluid. The sloped surfaces formed on the first lid and the second lid guide the bubbles reaching an interface between the treatment fluid, the first lid, and the second lid diagonally upward. Thus, the bubbles are smoothly released outside the treatment chamber. This can eliminate retention of the bubbles, avoid contacts between the bubbles and the substrates, and suppress a decrease in the treatment uniformity.

A substrate treatment apparatus according to the present invention is provided with a first tank that stores treatment liquid for treating a substrate and a first path that returns the treatment liquid, which has spilled over from an upper part of the first tank, to a lower part of the first tank. A second path that branches from the first path, a measurement tank that stores the treatment liquid, which has flowed in from the second path, and a pressure measurement part that measures the pressure of the treatment liquid at a predetermined depth in the measurement tank in a state in which the treatment liquid spills over from an upper part of the measurement tank are provided. Therefore, techniques for highly precisely measuring the pressure of the treatment liquid used in treatment of substrates can be provided.

In order to provide a device and a method for treating workpieces (102), which allow optimum treatment of the workpieces, a treatment station (114) comprises a treatment chamber (136) that can be flooded for the purpose of treating the workpiece.

A method produces an acrylic fiber bundle that are cleaned in one or more washing baths including an inflow portion and an outflow portion for a cleaning solution; at least one of the washing baths is a counterflow washing bath in which the cleaning solution flows into from the inflow portion located at a lower stream side position of a traveling direction of coagulated thread bundles, and flows out from the outflow portion located at an upper stream side position of the traveling direction of the coagulated thread bundles; and an average of coefficients of variation CV of linear speeds of the cleaning solution in the inflow portion of the counterflow washing bath is 0.30 or less, and an average of coefficients of variation CV of linear speeds of the cleaning solution in the outflow portion of the counterflow washing bath is 0.30 or less.

A process for the production of acrylic fibers, in particular a spinning process for obtaining precursor fibers of carbon fiber by the wet spinning of a polymer solution in an organic solvent and the relative apparatus.

Provided herein are systems, methods and devices for cleaning small parts that contact biotechnology or pharmaceutical products during manufacture. A parts cleaning device may be provided with a tank, wheels, at least one jet, an input hose and an output hose configured to couple the at least one jet to an automated Clean In Place system (CIP), a bottom outlet, a restriction device and an overflow outlet. The cleaning device may be configured to ensure that liquid can flow into an interior volume of the tank at a greater rate than liquid flowing out of the bottom outlet, thereby causing the liquid level in the interior volume to rise until it reaches the overflow outlet. The cleaning device may not have any automated equipment but instead may rely on automated equipment in the CIP system to operate.

A cleaning device is configured to include a first cleaning tank that holds water to which a small amount of an additive is added as a first cleaning fluid, a second cleaning tank that holds water, a water-based cleaning agent, an alkaline cleaning fluid, or a hydrophilic organic solvent as a second cleaning fluid, a first microscopic air bubble generation device, a first circulating pump, an ultrasonic wave emitting device, and a carrier device. Hydrophobic oil is removed by a cleaning target being exposed to the first cleaning fluid including microscopic air bubbles sprayed from a nozzle in an interior of the first cleaning tank, after which hydrophilic oil is removed by ultrasonic cleaning in the second cleaning tank.

An apparatus for washing meat or produce includes a container having an interior volume defined by wall and a base, and a pipe having an outlet opening to the interior volume of the container and an inlet at an exterior of the container. The container has an opening at an upper end thereof. The outlet opens adjacent to the base such that a flow of the fluid through the pipe is directed toward or adjacent to the base. The flow of water is directed through the container so as to create a circular flow pattern that causes the debris separate from the meat or produce within the container. A handle is affixed to or formed with the container on one of the end walls of the container.

A mop cleaning system has a mop basin having a floor and a drain, a chamber affixed to the mop basin in a location away from the drain, a water inlet opening within the interior volume of the chamber, and a water source connected to the water inlet. The water inlet is adapted to pass water in an area adjacent to a bottom of the chamber. The water source is adapted to pass water under pressure into the water inlet. The chamber is fixedly mounted to the floor of the mop basin. The chamber has an outlet located at above the water inlet.