摘要:
A device for aftertreatment of exhaust gas includes: a prechamber having an exhaust gas inlet; a main chamber; a mixing device, in which the exhaust is mixable with an additive; and an intermediate device, via which a partial exhaust gas flow is deliverable from the prechamber to the mixing device. The intermediate device has swirl elements configured to reverse the direction of swirl of swirled exhaust gas flow generated in the prechamber as the exhaust gas overflows into the interior of the intermediate device, and/or the prechamber is configured to impel a first partial exhaust gas flow in a direction of swirl, and the main chamber is configured to impel a second partial exhaust gas flow from the prechamber in a direction of swirl, the direction of swirl of the exhaust gas in the prechamber being opposed to the direction of swirl of the exhaust gas in the main chamber.
摘要:
The invention relates to a gaseous fuel composite, a device for producing the gaseous fuel composite, and subcomponents used as part of the device for producing the gaseous fuel composite, and more specifically, to a gaseous composite made of a gas fuel such as natural gas and its oxidant such as air for burning as part of different systems such as fuel burners, combustion chambers, and the like. The device includes several vortex generators each with a curved aerodynamic channel amplifier to create a stream of air to aerate the gas as successive stages using both upward and rotational kinetic energy. Further, a vortex generator may have an axial channel with a conical shape or use different curved channel amplifiers to further create the gaseous fuel composite.
摘要:
The present invention relates to a mixer, an apparatus comprising the mixer and a reactor, and processes incorporating the same. The mixer comprises an inlet (104) to a chamber (102), wherein the chamber inlet angle is less than 90°. The mixer further comprises an expander zone (106) that expands outwardly at an expander angle of less than 90°. The mixer may be coupled to a reactor at its outlet, which may closely approximate the size of the reactor inlet due to the expander (106).
摘要:
Colloidal mixing of cementitious material into a liquid such as water to form a grout slurry for pumping to a location for use includes a mixing tank and a colloidal mixing mill which grinds and pumps the mixed material with the material being repeatedly circulated between the mill and the tank. The colloidal mixing mill includes a housing defining a generally cylindrical chamber containing a rotor shaped to define a clearance of the order of 3 mm between the front and rear wall of the housing and the rotor with holes from a dished front face of the rotor to the rear face to carry the mixed materials to the clearance where a shearing action takes place to shear the particles in the mixed materials prior to exit through the outlet.
摘要:
A cylindrical mixer having an opening portion on both ends forms an axial flow path and a first fluid introduced into the axial flow path through the opening portion at one end flows therethrough in the axial direction and the first fluid exits from the opening portion at the other end; and a spiral flow path and a second fluid introduced into the spiral flow path through a hole formed in a peripheral wall of the mixer is made to flow along an inner peripheral surface of the mixer while being swirled in a spiral manner about an axis of the axial flow path so that the first fluid and the second fluid are mixed and a mixture of the first fluid and the second fluid exits from an opening portion at the end to refine and homogenize a dispersion phase on a micro level to a sub-micro level.
摘要:
The invention provides a working trough and a method for maintaining a uniform temperature of a working fluid. The working trough is applied to an electrical discharge machine that performs wire cutting using the working fluid. The method for maintaining a uniform temperature of the working fluid is applied to the working trough and characterized by forming opening structures in a receiving slot of the working trough such that a spiral swirl having a predetermined height is allowed to be formed in the working fluid, thereby maintaining a uniform temperature of the working fluid in the receiving slot when a wire cutting process is performed in the working fluid by the electrical discharge machine. The disturbance of the spiral swirl also facilitates the discharge of scraps. The present invention further has an advantage of low cost.
摘要:
The invention provides a working trough and a method for maintaining a uniform temperature of a working fluid. The working trough is applied to an electrical discharge machine that performs wire cutting using the working fluid. The method for maintaining a uniform temperature of the working fluid is applied to the working trough and characterized by forming opening structures in a receiving slot of the working trough such that a spiral swirl having a predetermined height is allowed to be formed in the working fluid, thereby maintaining a uniform temperature of the working fluid in the receiving slot when a wire cutting process is performed in the working fluid by the electrical discharge machine. The disturbance of the spiral swirl also facilitates the discharge of scraps. The present invention further has an advantage of low cost.
摘要:
A low-shear mixing apparatus comprising a cyclone separator and a cyclone mixer wherein underflow from the cyclone separator passes into the cyclone mixer and is combined therein with a downwardly spiraling vortex of a second component.
摘要:
A mixing method particularly for the mixing of a plurality of fluids is described. A first fluid is injected into a mixing chamber with a given angular momentum and directed at a given tangent circle. The tangent circle has a radius less than that of the mixing chamber. A second fluid is injected into the mixing chamber at a position spaced from the first fluid injection area, and with a predetermined angular momentum opposite to that of the first fluid. The second fluid is directed at a tangent circle of radius less than that of the mixing chamber. The fluid injections are arranged such that the total angular momentum injection rate is less than angular momentum injection rates of the individual injected fluids. Any number of fluids may be mixed in this way, by suitable choice of the injection direction and angular momentum of each fluid.
摘要:
One or more embodiments relate to systems and methods for mixing of two or more fluids using a multi-chamber manifold. One or more embodiments relate to optimal mixing.