An apparatus for separating a mixture of two liquids of different densities which liquids are substantially insoluble in one another includes a hollow permeable body having a recess for receiving a first fluid which can flow from the recess through the permeable body to an exterior of the permeable body. A housing surrounds and is spaced from the exterior of the permeable body. The housing has an inlet for a second fluid and an outlet for a mixture of the first and second fluid. A baffle or baffles are provided in the space between the exterior of the permeable body and the housing, and to define a mixing channel in space between the exterior of the permeable body and the housing so that the second fluid can enter the housing inlet and flow through the mixing channel to the outlet, while picking up fluid on the exterior of the permeable body.

A flow disturbance apparatus includes: a refrigerant pipe having a flow space in which refrigerant flows; and at least one disturbance member disposed inside the refrigerant pipe that is vibrated by the flow of refrigerant in the refrigerant pipe to disturb the refrigerant flowing in the refrigerant pipe.

A test device having a micro flow channel including a reaction part where a reactant that is reactive to a tested chemical dispersed in a tested fluid is fixed, and at least one actuator for actuating the tested fluid to move in at least one of two opposite sides of the micro flow channel so as to homogenize a density distribution of the tested chemical in the tested fluid. The tested fluid is sent in the micro flow channel a plurality of times.

A homogenization apparatus for at least two fluid flows for homogeneous gas/air mixing in a gas engine, in which at least two fluid feed lines conducting different fluid flows and one fluid outflow line conducting the homogenized fluid are connected to a central homogenization space as mixing region. In a connection region upstream of the homogenization space, the fluid feed lines have in each case one line section with a flow deflection in one direction with a flow deflection which follows downstream in the other direction and are connected in such a way that the fluid flows are fed tangentially to the homogenization space with a swirl movement imparted to them, in such a way that a rotating, turbulent flow which assists the homogenization process is formed in the homogenization space.

A fire-fighting system including: a pressurized gas supply; a vessel for storing a solution of water and a foaming agent, the vessel being connected to the pressurized gas supply for pressurizing the vessel in use; and a mixer for mixing gas from the pressurized gas supply with the solution to generate foam, wherein the mixer includes: a solution inlet for receiving the solution from the vessel; a foam outlet; one or more injection ports connected to the pressurized gas supply for injecting gas bubbles into the solution to form a mixture of the solution and the gas bubbles; and a foaming chamber extending between the solution inlet and the foam outlet, the mixture flowing through the foaming chamber to generate foam at the foam outlet, at least one internal surface of the foaming chamber including a shearing structure for shearing the gas bubbles as the mixture flows through the foaming chamber.

A system includes a first steam injector configured to mix a steam and a feedstock to form a heated feedstock. Additionally, first viscosity of the feedstock is greater than a second viscosity of the heated feedstock. The system also includes a feed system positioned upstream of the first steam injector and configured to supply the feedstock to the first steam injector. In addition, the system includes a steam system configured to supply the steam to the first steam injector. Furthermore, the system includes a gasifier coupled to the first steam injector and configured to receive the heated feedstock.

A flow disturbance apparatus includes: a refrigerant pipe having a flow space in which refrigerant flows; and at least one disturbance member disposed inside the refrigerant pipe that is vibrated by the flow of refrigerant in the refrigerant pipe to disturb the refrigerant flowing in the refrigerant pipe.

A multi-layered micro-channel mixer includes a base plate and a cover plate. Two inlet fluid reservoirs, two inlet channels, two groups of fluid distribution channel networks, two groups of process fluid channels, an impinging stream mixing chamber, a fluid mixing intensification channel and an outlet buffer reservoir are provided on the base plate. Two fluids are fed into the two inlet fluid reservoirs, respectively. The fluids then flow into the process fluid channels via the inlet channels and the multi-stage fluid distribution channel networks, respectively. Then the two fluid streams ejected from the opposing process fluid channels impinges upon each other in the impinging stream mixing chamber. The mixed fluid is subjected to vortex or secondary flow generated by the baffles or the internals in the impinging stream mixing chamber and fluid mixing intensification channel, and finally the mixed fluid is discharged through the outlet buffer reservoir.

A system includes a high-pressure static mixer. The system also includes a clean fluid system that provides clean fluid to the first high-pressure static mixer at a first fluid velocity and a proppant fluid system that provides a proppant concentrate to the first high-pressure static mixer at a second fluid velocity. Additionally, the system includes a wellhead in fluid communication with the first high-pressure static mixer. The wellhead receives a mixed fluid including the clean fluid and the proppant concentrate from the first high-pressure static mixer.

A pressurized fluid mixing device is disclosed, including an inner casing and an outer casing. A first channel is arranged in the inner casing and includes one or more unit channels, adjacent unit channels of which are communicated with each other, flow blocking members are fixed on the unit channels, the inner casing is provided with one or more first inlets and one or more first outlets, a second channel is arranged in the outer casing, the outer casing is provided with one or more second inlets and one or more second outlets, and the inner casing is fixed on the second channel.