A decomposition chamber for an exhaust aftertreatment system includes an inlet conduit centered on an inlet conduit axis and configured to receive exhaust, a decomposition conduit coupled to the inlet conduit, an endcap coupled to the decomposition conduit, and an injector coupled to the endcap and configured to provide reductant into the decomposition conduit along an injection axis. The decomposition chamber includes a guide swirl mixer coupled to at least one of the inlet conduit or the endcap. The guide swirl mixer includes a first portion disposed within the inlet conduit, and a second portion disposed within the decomposition conduit such that the inlet conduit axis extends through the second portion. The second portion extends at least partially around the injection axis.

A method and system for forming a liquid mixture utilizes a mixing tank with a tank inlet oriented and configured to create a swirling liquid flow that forms a vortex within the tank. A portion of the swirling liquid is discharged through an outlet formed by an opening in a lower wall of the tank. At least a portion of the opening is offset to one side of a central axis of the lower wall. Liquid is circulated and reintroduced into the tank inlet. A material to be mixed is introduced into the swirling liquid flow within the tank interior to form a liquid mixture.

Apparatuses for controlling fluid flow are important components for delivering process fluids for semiconductor fabrication. These apparatuses for controlling fluid flow are formed with a variety of fluid flow components, including fluid flow components for mixing fluid flows. Fluid flow components for mixing flows utilize mixing elements configured to receive flows of two or more process fluid flows via fluid inlets, mix the fluid flow within the mixing element, and deliver mixed fluid to a down-stream fluid flow component or an outlet of an apparatus for controlling fluid flow.

One or more techniques and/or systems are disclosed for saturating a gas with a liquid-borne compound. A bubbler container may be configured to contain a carrier liquid, which comprises a desired compound. The container may comprise at least one channeling plane, disposed between the top and bottom of the container, which may be configured to allow gas bubbles to travel through a circuitous, channeling route. The gas can be introduced to the container at a bottom portion of the container, into the carrier liquid comprising the compound. Carrier gas bubbles formed in the liquid may be forced to travel the channeling route to a top portion of the container, where gas saturated with the compound may be collected.

A flow cell for use with an analytical device having a measurement surface onto which a fluid sample to be measured can be received comprises: a housing comprising an interface for connecting to an analytical device; a fluid chamber provided in the housing, the fluid chamber comprising sidewalls at least partly defining an internal volume for receiving a multiphase fluid sample and an opening arranged so as to provide a multiphase fluid sample received in the internal chamber volume to a measurement surface of an analytical device when the housing is connected to the analytical device; and an agitation device. The agitation device comprises an agitation mechanism adapted to agitate a multiphase fluid sample within the internal volume of the fluid chamber and cause movement of the fluid through and within the opening thereby providing fluid to a measurement surface of an analytical device. The agitation mechanism is separated from the internal volume by a barrier wall.

A micro-bubble acquisition apparatus is disclosed including a first body in which a water inlet channel, a water outlet channel, a vortex cavity communicating the water inlet channel with the water outlet channel, and an air inlet channel communicated with the vortex cavity are provided. The vortex cavity has an axis offset from an axis of the water inlet channel, the vortex cavity is provided with a water inlet communicated with the water inlet channel, and the water inlet is arranged at a side of the axis of the water inlet channel away from the axis of the vortex cavity.

Provided are a bubble generation apparatus and a washing device, the bubble generation apparatus includes a gas dissolution chamber, a bypass member, and a bubbler. The gas dissolution chamber has a vent opening, a liquid inlet, and a liquid outlet, the bypass member has a gradually contracting section, a throat part, and a gradually expanding section which are connected in sequence from a bypass inlet to a bypass outlet; the bubbler is connected to the liquid outlet, the bypass inlet or bypass outlet of the bypass member is connected to the liquid inlet to supply liquid into the gas dissolution chamber, and the throat part is connected to the vent opening or a gas storage space in the gas dissolution chamber.

A micro-bubble acquisition apparatus is disclosed including a first body in which a water inlet channel, a water outlet channel, a vortex cavity communicating the water inlet channel with the water outlet channel, and an air inlet channel communicated with the vortex cavity are provided. The vortex cavity has an axis offset from an axis of the water inlet channel, the vortex cavity is provided with a water inlet communicated with the water inlet channel, and the water inlet is arranged at a side of the axis of the water inlet channel away from the axis of the vortex cavity.

A flow cell for use with an analytical device having a measurement surface onto which a fluid sample to be measured can be received comprises: a housing comprising an interface for connecting to an analytical device; a fluid chamber provided in the housing, the fluid chamber comprising sidewalls at least partly defining an internal volume for receiving a multiphase fluid sample and an opening arranged so as to provide a multiphase fluid sample received in the internal chamber volume to a measurement surface of an analytical device when the housing is connected to the analytical device; and an agitation device. The agitation device comprises an agitation mechanism adapted to agitate a multiphase fluid sample within the internal volume of the fluid chamber and cause movement of the fluid through and within the opening thereby providing fluid to a measurement surface of an analytical device. The agitation mechanism is separated from the internal volume by a barrier wall.

A vane swirl mixer for exhaust aftertreatment includes: a vane swirl mixer inlet; a vane swirl mixer outlet; a first flow device including: a Venturi body; a plurality of upstream vanes positioned within the Venturi body; a plurality of upstream vane apertures interspaced between the plurality of upstream vanes; a plurality of downstream vanes positioned within the Venturi body; and a plurality of downstream vane apertures interspaced between the plurality of downstream vanes. At least one of the upstream vane hub and the downstream vane hub is radially offset from a Venturi center axis, thereby causing individual ones of the plurality of vanes coupled to the radially offset vane hub to differ in their geometry.