67results about How to "Increase export speed" patented technology

A system for cold gas dynamic spraying of particulate material has a de Laval nozzle and two or more radial particle inlets located between the throat and the outlet of the nozzle, the two or more particle inlets arranged symmetrically around a linear flow path of the nozzle. Blocking of the inlets is reduced by controlling pressure of particle carrier gas to provide a stable particulate material injection pressure before and during introduction of working gas into the nozzle, and/or by clearing the particle inlets of residual particles after a spraying process. Such a system and associated method combines benefits of both downstream and upstream cold gas spray systems. Further, a nozzle for spraying particulate material having a cross-sectional shape that is narrower in a middle section compared to edge sections provides coatings with superior cross-sectional profiles.

The invention discloses magnetized plasma artillery. A magnetic field is arranged in an artillery body pipe, the direction of the magnetic field points to an artillery port along the direction of an axis of the artillery body pipe, the magnetic field strength is gradually reduced from an inner wall of the artillery body pipe to the axis of the artillery body pipe, and the gas in the artillery body pipe can be ionized into the plasma for forming a plasma sheath layer on the inner wall of the artillery body pipe under the action of the magnetic field while the artillery is launched. The magnetized plasma sheath layer formed on the inner wall of the artillery body pipe of the magnetized plasma artillery has stress anisotropic characteristic and has thermal insulation function, and then, the radial force for the artillery body pipe is greatly reduced, the driving force for the bullet is greatly improved, the heat resistance of the artillery body pipe is greatly improved and the service life is prolonged.

The invention discloses a radial rim sealing structure with damping holes and flow guide blades. The radial rim sealing structure is characterized in that the radial rim sealing structure is arranged in a gas turbine rotor-stator cavity or a gas turbine rotor-rotor cavity and comprises an outer tooth and a radial inner tooth which are matched; a plurality of damping holes are evenly formed in the upper end face of an inner tooth body of the radial inner tooth in the circumferential direction, and a plurality of flow guide blades are evenly arranged on the radial end face of the inner tooth body of the radial inner tooth in the circumferential direction; furthermore, the damping holes are in a cellular shape and are evenly distributed in a sealing tooth face in the circumferential direction; the flow guide blade are arranged on the end face of the sealing radial inner tooth with equal arcs, and the blades are provided with gradually-shrunk channels. The rim sealing structure can effectively lower the high-temperature gas invading degree and improve the sealing performance of rim sealing, and therefore the overheat failure of a turbine disc is avoided, the use amount of low-temperature cooling air flow introduced from the position of an air compressor can also be reduced, and the efficiency of a unit can be improved.

The invention relates to a multi-blade centrifugal fan with a reinforced air inlet function. Nontraditional special-shaped blade structures are adopted. On the premises that the diameter of an impeller is not increased and the size of a volute fluid passage is not changed, by changing the shape of the air inlet side of each blade and increasing the area of the air inlet of the impeller, the goal of improving the air quantity and the air pressure of the centrifugal fan is achieved; by differently optimizing the shape of the air inlet side and the exhaust side of each blade of the impeller, an air flow field at the inlet of the impeller is obviously improved, the air flow loss and the noise of the fan are obviously reduced, the outlet speed of the impeller is improved, and the air quantity, the air pressure and the efficiency of the fan are obviously improved; the special-shaped blades have various structures and different demands can be met; the multi-blade centrifugal fan with the reinforced air inlet function provides a new approach for improving the air quantity, the air pressure and the efficiency of the centrifugal fan and reducing the noise; and the structure of the multi-blade centrifugal fan is simple, the cost is low, the implementation is easy, the energy-saving and environmental-friendly effects are remarkable and the multi-blade centrifugal fan can be popularized and used in various fields.

The invention discloses a centrifugal fan of an extractor hood. The centrifugal fan comprises a volute and an impeller arranged in the volute. The impeller comprises a plurality of blades. The molded line of each blade comprises a first circular arc located in an inlet and a second circular arc located in an outlet, wherein the first circular arc and the second circular arc are in smooth connection, the radius of the first circular arc is R1, the central angle of the first circular arc is alpha 1, the radius of the second circular arc is R2, and the central angle of the second circular arc is alpha 2. The centrifugal fan of the extractor hood is characterized in that the radius ratio R2/R1 of each first circular arc to each second circular arc ranges from 3.5 to 4, and the central angle alpha 1 of each first circular arc ranges from 85 degrees to 90 degrees. Due to the fact that the more reasonable radius and central angle parameters of two circular arcs of the molded line of each blade are selected, the shrinkage degree of the outlet of each blade and the long and narrow degree of each blade are larger, the outlet speed of the impeller is higher, the number of vortexes in an impeller channel is smaller, the centrifugal fan is more suitable for the application environment of the extractor hood, oil fume can be thrown away from the impeller more easily, and the number of vortexes in the fan is smaller.

The invention discloses a composite anti-violence kinetic energy projectile compatible with various anti-violence guns, the composite anti-violence kinetic energy projectile comprises a projectile head, an upper projectile body, a lower projectile body, a projectile support and a projectile shell assembly, the projectile head, the upper projectile body and the lower projectile body are mechanically connected in an inserted mode and fixed in an adhesive mode, the projectile head and the upper projectile body are made of soft materials, so that relative displacement and large deformation occur during short-distance high-speed impact, impact energy is effectively dissipated, excessive damage to a target is avoided, during long-distance low-speed impact, relative displacement is avoided, deformation is small, and more impact energy is transferred into the target body to achieve the expected pain-causing effect; the hard lower projectile body is wrapped around the soft upper projectile body, so that excessive scratching caused by the hard lower projectile body to a living target can be avoided; and through self-rotation and stable empennage dragging, the composite anti-violence kineticenergy projectile can be suitable for the anti-violence guns with wire bores and smooth bores, can effectively prevent shots from rolling over in the air and can effectively improve the striking precision, smokeless gunpowder is used as propellant powder, so that corrosion of gunpowder residues to a gun barrel can be reduced, the muzzle smoke amount is small, and interference to tactical actions is avoided.

The invention discloses a multi-effect integrated kinetic energy bomb with hierarchical dissipation of impact energy. The multi-effect integrated kinetic energy bomb comprises a multi-effect bomb head assembly, a bomb body assembly and a launching assembly; and the three assemblies are mechanically inserted front and back. During extremely high-speed impact, the multi-effect bomb head assembly generates two-stage shear failure, buffer spring limit compression and first-stage impact failure, and an extremely large amount of impact energy is dissipated; during high-speed impact, the multi-effect bomb head assembly generates two-stage shear failure and compression of most of buffer springs, and a large amount of impact energy is dissipated; therefore, hierarchical dissipation of impact energy is achieved, i.e. the function of achieving high energy dissipation during short-distance high-speed impact and low energy dissipation during long-distance low-speed impact; and the kinetic energy bomb has triple non-fatal effects of kinetic energy striking, lacrimation dispersing and dyeing marking at the same time under different impact conditions, and the problems that an existing kinetic energy bomb is excessively large in short-distance power and insufficient in long-distance efficiency is fundamentally solved.

The invention discloses a flooding-type varnished wire cable for a high-power handheld transformer winding. Two ends of a minuteness varnished wire harness cable are respectively stretched into two copper pipe center holes to achieve connection, and the sections of joints of two copper pipes and the minuteness varnished wire harness cable are in a semicircular shape in mould-pressing mode; a polytetrafluoroethylene sleeve is sleeved outside the two copper pipes and the minuteness varnished wire harness cable, and a cooling water channel used for passing of ion cooling water is formed between the minuteness varnished wire harness cable and the polytetrafluoroethylene sleeve; the wall of the first copper pipe of a section of gap between the left end of the minuteness varnished wire harness cable and the right end of a water inlet joint inside the first copper pipe center hole is provided with a water inlet; and the wall of the second copper pipe of a section of gap between the right end of the minuteness varnished wire harness cable and the left end of the water inlet joint inside the second copper pipe center hole is provided with a water outlet. The minuteness varnished wire harness cable is soaked in deion cooling water, and a large amount of work heat can be taken away.

The invention discloses a non-pyrotechnic explosion and lacrimation composite kinetic energy bomb. The non-pyrotechnic explosion and lacrimation composite kinetic energy bomb comprises a bomb head assembly, an explosion and lacrimation assembly, a bomb body assembly and a launching assembly, wherein the bomb head assembly comprises a bomb head body and a light-emitting element, the bomb head assembly sleeves the bomb body assembly, the explosion and lacrimation assembly is arranged between the bomb head assembly and the bomb body assembly, and the explosion and lacrimation assembly comprises a power element and a lacrimation element; the bomb body assembly comprises a bomb body and an impact ball, the lower side of the bomb body assembly is mechanically connected with the launching assembly in an inserted mode, the launching assembly comprises a bomb shell element, a charge and a low-pressure chamber, and impact energy can be effectively dissipated through shear failure between the bomb head assembly and the bomb body assembly and impact breaking of the light-emitting element and the explosion and lacrimation assembly; the probability of short-distance excessive injury is reduced, the pain-causing effect during long-distance low-speed impact is achieved through secondary impact of the hard bomb body, the light-emitting element emits dazzling white light and can indicate an impacted target and an impact point, the explosion and lacrimation assembly stimulates powder through explosion sounding and high-speed jetting, deterrence and dispersion are achieved, no smoke and no flame are achieved, and fire disasters cannot be caused.

An automatic carton partition board insertion machine belongs to automatic package machinery. In the invention, the cutting board spiral material dividing mechanism of an automatic carton partition board has novel design, schematic view of the carton partition board is shown in figures and an overall design structure is shown in figure 2 . The cutting board spiral material dividing mechanism comprises a material feeding and dividing chamber, a vertical air jetting hole, inclined and vertical material sliding chutes, a material pushing spiral mechanism, and a material setting support plate. By the adoption of the design, the machine runs more conveniently and reliably; and a pair of rolling rubber covered rollers is additionally arranged at a material discharge port of the material feeding and dividing chamber, so that on one hand, the material pushing distance of a material pushing plate is greatly reduced as long as a cutting board is inserted between the two rollers, and the vibration during material pushing is reduced, on the other hand, the outlet speed of cutting boards is increased and blanking is more reliable.

An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. An array of bricks incorporating internal radiation cavities is directly heated by thermal radiation. The cavities facilitate rapid, uniform heating via reradiation. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. Gas flows through structured pathways within the array, delivering heat which may be used for processes including calcination, hydrogen electrolysis, steam generation, and thermal power generation and cogeneration. Groups of thermal storage arrays may be controlled and operated at high temperatures without thermal runaway via deep-discharge sequencing. Forecast-based control enables continuous, year-round heat supply using current and advance information of weather and VRE availability. High-voltage DC power conversion and distribution circuitry improves the efficiency of VRE power transfer into the system.

A flechette for use with a gun barrel having a tapered bore with a diameter at the initial bore section greater than the diameter at the emergent bore. The flechette includes a body constructed of a ductile material and having an elongated axis aligned with the axis of the tapered bore when positioned in the load end of the bore. The body also includes a cylindrical bulkhead as well as a bourrelet that are axially spaced from each other along the flechette and have an outside diameter substantially the same as the diameter at the initial bore section of the tapered bore. An elongated boom is attached at the tail end of the body while a penetrator is attached at the forward end of the body. Upon launch, both the bulkhead and bourrelet are compressed radially inward by the bore reduction so that the body is substantially cylindrical upon exit from the discharge end of the bore.

A control method for the extruding technology of Al-alloy features that its technological parameters are set up to be pre-heating temp To-375-520 deg.C, extruding outlet temp Te=490-540 deg.C, plunger moving speed Vs=3-10 mm/s, and the marginal factor of extruding force up=0.1, and the bichromic infrared temp measuring instrument and industrial microcomputer control system are used for measuring or calculating said parameters.

The invention discloses a fin-stabilized energy attenuation type anti-violence kinetic energy projectile. The fin-stabilized energy attenuation type anti-violence kinetic energy projectile comprises alaunching assembly, a projectile support assembly and a projectile assembly, wherein the projectile support assembly comprises a gas closing disc and a supporting base, the self weight can be reduced, gunpowder fuel gas boosting force can be efficiently utilized to improve the projectile launching initial speed, and the projectile assembly is formed by compositing a soft projectile head and a hard projectile body. During short-distance high-speed impact, shear failure occurs between the projectile head and the projectile body, the soft projectile head deforms greatly, and impact energy is effectively dissipated, so that excessive damage to a short-distance target is avoided; and during long-distance low-speed impact, shear failure does not occur between the projectile head and the projectile body, the soft projectile head deforms slightly, a secondary impact load is applied to the hard projectile body, and a larger proportion of impact energy is transferred into the target body, so that the expected pain causing purpose is achieved, the problems that an existing kinetic energy projectile is too large in short-distance power and insufficient in long-distance efficiency are effectively solved, a load ball is additionally arranged on the projectile assembly, and multiple non-lethal effects can be achieved.

Selective non-catalytic reduction (SNCR) of pollutant remissions in a fossil fuel combustion furnace having water cannons installed therein for removing combustion incrustation is accomplished by using the water cannons intended for de-slagging by mixing a reagent with water and administering the mixture under high velocity and high blast flow rate to the interior of the furnace for reduction of pollutant emissions, such as NOx, with the water cannons. The water cannons may be switched from the SNCR function to a de-slagging function.