This foam-generating device is easily transportable, free from fluid or power supply constraints, and able to supply a foam such as viscous foam with a high (low liquid fraction), time-invariant (low liquid fraction). The gas is withdrawn compressed from a cylinder, and a fixed fraction of its flow is used to drive a pneumatic pump which draws in the foaming liquid. The foam is formed in a mixer containing free-moving solids shortly before the ejection end of the device. The mixer has highly mobile balls in a cage of much larger dimensions; it is suitable for producing foam with a high overrun. Application: decontamination and depollution of large surfaces, buildings or indoor or outdoor structures.

A solvent mixing system includes a mixing tee, a centrifugal mixing path, and a low frequency blending mixer. The mixing tee has at least two solvent input ports and a solvent output port in fluid communication with one another. The centrifugal mixing path has a mixing path inlet in fluid communication with the solvent output port of the mixing tee. The centrifugal mixing path includes at least one coiled segment between the mixing path inlet and a mixing path outlet. The low frequency blending mixer is in fluid communication with the outlet of the centrifugal mixing path.

An apparatus for preparing foam for incorporation into cementitious slurry comprises a conduit having an inlet for receiving a gas feed and a surfactant feed, and an outlet for allowing the exit of foam. The conduit houses a porous plug that provides a partial barrier to fluid flow along the conduit, the plug comprising a plurality of particles that are packed in a regular array and that define a three-dimensional network of pores extending therebetween. The apparatus comprises a resilient component located between the plug and the conduit.

A method for controlling fluid ratio accuracy during a dual flow injection with a powered injection system is described. The method includes predicting a first capacitance volume of a first syringe comprising a first medical fluid and a second capacitance volume of a second syringe comprising a second medical fluid with a first capacitance correction factor and a second capacitance correction factor, respectively, selecting a ratio of the first medical fluid and the second medical fluid to be administered to a patient in the dual flow injection, determining a relative acceleration ratio of a first piston of the first syringe and a second piston of a second syringe based on the predicted first capacitance volume and the predicted second capacitance volume, wherein the relative acceleration ratio is selected to maintain the selected ratio of the first medical fluid and the second medical fluid during the dual flow injection, and injecting a mixture of a first medical fluid and a second medical fluid having the selected ratio with the powered injection system.

A configuration for water purification undergoes the water supply step of taking in treatment water through a water suction port and pressure-feeding the treatment water, the air supply step of taking in air through an air suction port and supplying the air, the oxygen amount increasing step of pressurizing the air supplied at the air supply step to increase the total amount of oxygen, the ionization step of ionizing the pressurized air subjected to the oxygen amount increasing step, the mixing step of obtaining gas-liquid mixing fluid subjected to first fine air bubble formation by spraying the air into the flow of treatment water, and the accelerated spraying step of performing second fine air bubble formation by accelerating a flow velocity by a narrowed-diameter portion provided at a spray nozzle when the gas-liquid mixing fluid obtained through the mixing step is sprayed into the treatment water.

A foam generator, in particular for a motor vehicle washing installation, includes a foam generation chamber having at least one inlet for water, surfactant and gas, in particular compressed gas, and one outlet for foam, and contains a fluid-permeable bed of loose particles. The bed fills the foam generation chamber sufficiently to prevent fluidization of the bed.

One embodiment provides a wine aerating device, including: a funnel-shaped container comprising a bottom that is provided with an outlet aperture having a predetermined size, wherein said funnel-shaped container is at least partially filled with a multitude of substantially spherical elements for breaking up and diverting a flow of wine streaming from the top to the bottom of said funnel-shaped container, each of said substantially spherical elements having a size significantly smaller than the size of said outlet aperture, and wherein a non-spherical element having a size greater than the size of said outlet aperture is placed upon said outlet aperture to partially block it, thereby preventing said spherical or nearly-spherical elements to pass through said outlet aperture while allowing the passage of wine through said outlet aperture and increasing the wine's turbulent motion and oxigenation while coming out of said funnel-shaped container. Other aspects are described and claimed.

A fluid path set includes a first fluid line having a proximal end fluidly connectable to a source of a first fluid and a second fluid line having a proximal end fluidly connectable to a source of a second fluid. A flow mixing device is in fluid communication with distal ends of the first and second fluid lines. The flow mixing device includes a housing, a first fluid port provided for receiving the first fluid, and a second fluid port for receiving the second fluid. A mixing chamber is disposed within the housing and is in fluid communication with the first and second fluid ports. A third fluid port in fluid communication with the mixing chamber for discharging a mixed solution of the first and second fluids. A turbulent flow inducing member is disposed within the mixing chamber for promoting turbulent mixing of the first and second fluids.

Carbonation apparatus is provided for carbonating a mixed input flow of pressurized and refrigerated carbon dioxide and water. A first cartridge is disposed within the carbonation chamber, defining a porous micromesh net in fluid communication with the input flow and a central cavity in fluid communication with the carbonation chamber output port. The micromesh net is configured to break up chains of water molecules passing through the net, to enhance bonding between the water and carbon dioxide molecules within the cartridge. The net also responds to the flow of water and carbon dioxide molecules impacting and passing through the net by generating a passive polarizing field that has a polarizing influence on the water molecules to further enhance bonding. Beads may be provided within the cartridge for capturing and stabilizing carbon dioxide molecules to yet further enhance bonding between the water and the carbon dioxide molecules.

A solvent mixing system includes a mixing tee, a centrifugal mixing path, and a low frequency blending mixer. The mixing tee has at least two solvent input ports and a solvent output port in fluid communication with one another. The centrifugal mixing path has a mixing path inlet in fluid communication with the solvent output port of the mixing tee. The centrifugal mixing path includes at least one coiled segment between the mixing path inlet and a mixing path outlet. The low frequency blending mixer is in fluid communication with the outlet of the centrifugal mixing path.