摘要:
Microfluidic devices, systems and methods of using same which incorporate channels where some portion or all of the channels have aspect ratios less than 1. Devices with such channel dimensions are optionally configured to provide uniform flow rates through the channels.
摘要:
Apparatus for mixing aqueous foam with a slurry of gypsum and water. A cylindrical housing includes, in its upper end, an inlet for a slurry and a helical diverter for directing the slurry in a downward spiral flow path. An inlet for aqueous foam in located in said diverted and directs the foam into the incoming slurry. An annular flow restrictor is located in the lower end of the housing. Turbulence resulting from diversion of the incoming slurry from linear flow to a downward spiral flow path and from changes in spin diameter and speed through the flow restrictor uniformly mix foam with the slurry.
摘要:
A multi-entry fluid mixer is provided, e.g. for mixing and injecting liquid rocket propellants, which mixer has a first set of passages for receiving fluid A and a second set of passages for receiving fluid B, the passages being separated by porous walls for mixing of fluids A and B therethrough as the fluids flow through such passages and then through a porous end wall, for further mixing and then discharge, as in, say, fuel injection into the combustion chamber of a rocket. The inventive mixer can also be employed in filtrated mixing of gases or gas/liquid combinations as well as for liquid rocket propellant injection, jet engine propellant injection, chemical mixing, aerosol formation and numerous other mixing and dispersion operations.
摘要:
A microstructures lamellae mixer comprising a guide component for supplying fluids to be mixed to a mixing chamber, the guide component being composed of a plurality of foils which are layered one above the other and into which microchannels are incorporated such that separate fluids supplied to the guide component are formed into spatially separated microstreams which then emerge adjacent to each other in a mixing chamber.
摘要:
Two or more independent and offset fluid transporting fractals allow the scaling and intermingling of two or more fluids separately and simultaneously prior to contacting the fluids with one another. The device provides rapid and homogeneous mixing and/or reaction.
摘要:
A valve structure is provided for destroying pressure difference between incoming fluids. The valve body includes two inlet passages and a merging passage that is communicated to an outlet. A pressure-balancing device is mounted in the merging passage and includes a shaft supported by two supports or end closures. Two bladed wheels are mounted to the shaft and may be impacted by the incoming fluids to thereby destroy the pressure difference between the incoming fluids.
摘要:
A slurry mixing apparatus has a mixing chamber, a rotatable bearing and several blades. The bearing is connected to one end of each of the blades and located in the center of the mixing chamber. Several kinds of the slurries can be mixed rapidly in the apparatus and flowed into the CMP polisher immediately to perform a CMP process. Being mixed by the mixing chamber, the slurry is supplied to the chemical mechanical polisher for polishing.
摘要:
Valve (1) has a pressurised movable valve cone (5), valve seat (6) and a valve housing (2) surrounding cone (5) and seat (6). Cone (6) is disposed such that a throttle occurs between them, constituting a homogenisation gap. The gap is concentrically disposed along the throttle.
摘要:
An air mixer for an air distribution system for a building including a set of fixed, parallel partitions arranged in a spaced-apart manner with one above another, these partitions forming alternating primary and secondary air passageways that are capable of conveying first and second air flows respectively. These passageways are substantially open ended at both inlet and outlet ends thereof. The primary air passageways extend from a first side of the mixer to a third, outlet side while the secondary air passageways extend at a substantial angle to the primary passageways from a second side to the third outlet side. There are fixed mixing devices, preferably in the form of curved vanes, arranged at many of the outlet ends of the passageways. The preferred air mixer has a substantially triangular shape in plan view.
摘要:
The invention relates to an agricultural spray apparatus whereby chemical to be sprayed is injected into spray liquid before the mixture of liquid and chemical is sprayed. The invention comprises a closed loop circulating system having a pump with an inlet and an outlet, a loop line connecting the pump inlet and outlet, a spray nozzle connected to the loop line downstream of the pump via a spray line, a spray liquid inlet connected to the loop line upstream of the pump, a chemical injection system connected to the loop line upstream of the pump and downstream of the spray liquid inlet, a venturi device, a return line, an agitation line, and a valve device in the spray line, reversing liquid flowing to the spray nozzle through the agitation line past the spray nozzle and through the return line.