There is provided a hydrogen gas mixing device that includes a hydrogen generation part configured to generate a hydrogen gas; a mixing gas supply part configured to supply a mixing gas; a gas mixing part configured to mix the hydrogen gas and the mixing gas; a dilution gas supply part configured to supply a non-combustible dilution gas; and a valve circuit configured to, at an abnormality occurrence time, dilute the hydrogen gas with the dilution gas by connecting a first path for the hydrogen gas supplied from the hydrogen generation part and a second path for the dilution gas supplied from the dilution gas supply part.

Methods and systems of admixing hydrocarbon liquids from a plurality of tanks into a single pipeline thereof. The system may include two or more tanks positioned at a tank farm each containing a hydrocarbon liquid therein. The system may include two or more first main pipes, each connected to one of the tanks. The system may include two or more main valves, each connected to one of the first main pipes. The system may include two or more second main pipes each connected to a corresponding main valve. The system may include two or more mixing jumpers, each connected to a corresponding first main pipe, each mixing jumper to, when a corresponding main valve is closed, control hydrocarbon liquid. The system may include a mixing pipe, connected to the second main pipes and the mixing jumpers, configured to transport hydrocarbon liquid from one or more of the tanks.

An apparatus (100) for the production of a plaster slurry is described, the apparatus (100) comprising a mixer (102) for mixing at least plaster and water to form a plaster slurry, the mixer (102) comprising an outlet conduit (122), a foam generator (106) for mixing at least air, a foaming agent and water to produce a foam, the foam generator (106) in fluid communication with the mixer (102) via a fluid pathway (116) comprising a foam conduit (117); and a mass flow meter (124), wherein the mass flow meter (124) is configured to measure the density and mass flow rate of the foam within the foam conduit (117) or the plaster slurry within the outlet conduit (122). Additionally, a method of manufacturing a plaster slurry is described.

A method and device for mixing plastic from liquid components in a mixer (8) and conveying it through a line (10) into a mould (12), in particular for vacuum infusion, characterised in that the components are each pumped by means of a pump (24) from their own respective component container (22) into a mixer (8) and are mixed therein, that these volume flows are controlled by a controller (26) in such a manner that they supply the components to the mixer (8) in a specific ratio, that the pressure loss in the line (10), between a pressure sensor in one of the component supply lines (32) leading to the mixer (8) and the mould (12), is determined, and that the pressure is measured by the pressure sensor and supplied to a controller (26) which, taking into consideration the determined pressure loss, controls the volume flows such that the pumps (24) supply the components to the mixer (8) at a pressure that is greater than the ambient pressure or than another specific pressure that should not be exceeded in the mould (12) by at most the pressure loss.

A pesticide residue removal device for a refrigerator, and a refrigerator are provided. The pesticide residue removal device includes: an ozone generator configured to generate ozone; an ozone water container configured to store water therein, where the ozone water container communicates with the ozone generator, so that ozone is dissolved into water of the ozone water container to obtain ozone water; and an atomizer communicating to the ozone water container, receiving and atomizing the ozone water, and supplying the ozone water to a storage space of the refrigerator. The generated ozone water is atomized to fully fill the entire storage compartment of the refrigerator to achieve effective pesticide residue removal and sterilization; ozone water can be prepared on demand to reduce waste; and people are well prevented from getting harmed at an excessive ozone concentration.

Embodiments include systems and methods of in-line mixing of hydrocarbon liquids from a plurality of tanks into a single pipeline. According to an embodiment, a method of admixing hydrocarbon liquids from a plurality of tanks into a single pipeline to provide in-line mixing thereof includes determining a ratio of a second fluid flow to a first fluid flow based on signals received from a tank flow meter in fluid communication with the second fluid flow and a booster flow meter in fluid communication with a blended fluid flow. The blended fluid flow includes a blended flow of the first fluid flow and the second fluid flow. The method further includes comparing the determined ratio to a pre-selected set point ratio thereby to determine a modified flow of the second fluid flow to drive the ratio toward the pre-selected set point ratio. The method further includes controlling a variable speed drive connected to a pump thereby to control the second fluid flow through the pump based on the determined modified flow, the pump being in fluid communication with the second fluid flow.

A beverage container has a housing, a controllable flow restriction element, and at least two liquid storage compartments in the housing. The housing is relatively rotatable with respect to the controllable flow restriction element about a main axis for rotation of the controllable flow restriction element between a closed liquid flow position and an open liquid flow position. The controllable flow restriction element has openings therein within the housing. Rotation of the controllable flow restriction element toward the closed position effects the closed position. Mixing of liquids from the first liquid compartment and the second liquid compartment are effected by rotational movement of the controllable flow restriction element.

A mixer arrangement for an exhaust gas system, having an inlet opening through which an exhaust gas mass flow (A) can be guided, and a mixer for swirling the exhaust gas, which has at least one inflow opening that is fluidically connected to the inlet opening, wherein at least one first portion (A1) of the exhaust gas mass flow (A) can be guided through the mixer via the at least one inflow opening, an injection device by means of which an additive can be injected, and a bypass having at least one throughflow opening which is fluidically connected to the inlet opening and through which a second portion (A2) of the exhaust gas mass flow (A) can be guided past the mixer, there being provided at least one regulating body by means of which a flow cross-section Q in the mixer arrangement can be varied such that a ratio V with (formula I) can be varied.

A mixer arrangement for an exhaust gas system, having an inlet opening through which an exhaust gas mass flow (A) can be guided, and a mixer for swirling the exhaust gas, which has at least one inflow opening that is fluidically connected to the inlet opening, wherein at least one first portion (A1) of the exhaust gas mass flow (A) can be guided through the mixer via the at least one inflow opening, an injection device by means of which an additive can be injected, and a bypass having at least one throughflow opening which is fluidically connected to the inlet opening and through which a second portion (A2) of the exhaust gas mass flow (A) can be guided past the mixer, there being provided at least one regulating body by means of which a flow cross-section Q in the mixer arrangement can be varied such that a ratio V with (formula I) can be varied.

A beverage dispensing system is disclosed that includes a container assembly configured to store two liquids (e.g., liquor and a mixer) that is couplable to a head assembly. The head assembly includes one or more pumps configured to draw the different liquids from the assembly, to mix variable ratios of the two liquids together, and to dispense the drink. In some configurations, the drink may be dispensed from the beverage dispenser into a glass or directly to the mouth of an individual.