62results about How to "Improve blending efficiency" patented technology

The invention discloses a pre-whirling type pintle injector applied to a double-component liquid propellant rocket engine. The pre-whirling type pintle injector applied to the double-component liquidpropellant rocket engine comprises a center rod, an inner nozzle, an outer nozzle and a connecting ring, all of which are rotation bodies. The inner nozzle coaxially sleeves the center rod, and a cavity for conveying fuel is formed by the inner nozzle and the center rod. The outer nozzle coaxially sleeves the outer nozzle, a cavity for conveying an oxidizing agent is formed by the outer nozzle andthe inner nozzle, and the connecting ring coaxially sleeves the outer nozzle. Pre-whirling treatment is conducted before oxidizing agent spraying-out, and the problem that a conventional pintle injector is not high in effective mixing efficiency is effectively solved; meanwhile, through the arrangement of two rows of fuel direct flow injection holes, cooling to a liquid film on the wall face of athrust chamber through propellant is effectively achieved; and the performance and the reliability of the double-component liquid propellant rocket engine can be obviously improved.

The present invention relates to one kind of rotary oil-jetting mixer. The mixer has a pedestal, an inner rotary sleeve on the pedestal, a rotating drum fixed onto the inner sleeve, a reduction box with ring gear fastened to the top of the rotating drum and meshed to last outer gear and initial gear on the upper end of the spindle, an axial flow turbine in the lower end of the spindle, and upper nozzles and lower nozzles communicated to the inner cavity and on the outer wall of the rotating drum. The present invention drives the nozzles to rotate with the liquid flow to spray out oil and other material and to form eddy diffusion in high mixing efficiency and without dead zone.

The invention relates to a mixing device for rubber and plastic mixed polymer materials, which relates to the technical field of polymer rubber and plastic products, and includes a frame, a collection box assembly, a mixing drum assembly, a height adjustment frame, an agitation drive device, an adjustment assembly and an auxiliary agitation device, which is beneficial The technical effect is that the present invention can change the degree of stirring according to the ratio and viscosity of rubber-plastic blending, so that the rubber-plastic blending is more thorough, and better stirring and mixing are achieved for rubber-plastic blended materials with higher viscosity, improving blending efficiency. The collection box assembly is placed at the lower end of the frame, the mixing drum assembly is arranged at the middle end of the frame, the collection box assembly is located at the bottom of the mixing drum assembly, the height adjustment frame is arranged at the upper end of the frame, and the stirring drive device is arranged at the height adjustment frame. At the front end, the adjustment assembly is arranged on the stirring drive device, the mixing drum assembly is located below the stirring drive device, and there are four auxiliary stirring devices, and the upper ends of the four auxiliary stirring devices are evenly arranged around the front end of the height adjustment frame.

The invention discloses a special-shaped mixing hole for adjusting the outlet temperature distribution of a combustion chamber, which belongs to the field of gas turbine combustion; the invention is provided with special-shaped mixing holes on the inner and outer ring walls of the combustion chamber flame tube respectively; the special-shaped mixing hole will The wall surface of the flame tube is divided into the front section of the flame tube and the rear section of the flame tube; the special-shaped mixing holes are evenly distributed along the circumferential direction of the wall surface of the flame tube to form a uniformly distributed mixing jet in the circumferential direction and increase the penetration depth of the mixing air flow. Increase the contact area between the blended cold air and the high-temperature mainstream gas, improve the blending effect, and improve the temperature distribution quality of the combustion chamber outlet; by changing the jet penetration depth of the blending hole, the jet circumferential expansion angle and the jet direction, the combustion chamber can be adjusted The effect of outlet temperature distribution; by adjusting the outlet temperature distribution of the combustion chamber, the quality of the turbine inlet temperature is improved, thereby increasing the service life of the turbine and reducing the design difficulty of turbine heat protection.

The invention relates to the technical field of gas turbines, and discloses a dual-fuel nozzle structure of a gas turbine. The dual-fuel nozzle structure of the gas turbine comprises a nozzle body, a medium-low heat value fuel gas whirlcone, a natural gas whirlcone and an end face whirlcone. The nozzle body comprises a slightly-blowing air barrel, a natural gas barrel, a nozzle air barrel and a medium-low heat value fuel gas barrel with the inner diameters being sequentially increased, and the barrels are isolated from one another. The end face whirlcone is arranged on the outlet end face of the nozzle air barrel. The natural gas whirlcone is arranged on the inner side wall of the natural gas barrel. The medium-low heat value fuel gas whirlcone is arranged on the inner side wall of the outlet end of the medium-low heat value fuel gas barrel, the medium-low heat value fuel gas whirlcone comprises a plurality of blades, and the blades are connected with the inner side wall of the medium-low heat value fuel gas barrel and the outer side wall of the nozzle air barrel. Each blade is provided with an air channel, and the air channels are communicated with the nozzle air barrel and an outside air flow channel of the medium-low heat value fuel gas barrel. An end face cover plate is arranged on the outlet end face of the slightly-blowing air barrel, and the end face cover plate is provided with a plurality of slightly-blowing air holes.

The invention discloses an oiling device and method for improving the stability of an oil agent, and belongs to the technical field of chemical fiber production. The oiling device comprises a circulating storage tank, an oil agent delivery pump, an external circulating filter, an external circulating heat exchanger and an oil tank; the circulating storage tank is connected with the oil inlet end of the oil agent delivery pump through a pipeline, the oil outlet end of the oil agent delivery pump is connected with the oil inlet end of the external circulating filter through a pipeline, the external circulating filter is connected with the oil inlet end of the external circulating heat exchanger through a pipeline, the oil outlet end of the external circulating heat exchanger is connected with the oil tank through a pipeline, and the oil tank is connected with the circulating storage tank through a pipeline, so that a circulating loop is formed; the bottom of the oil tank is provided with an emptying pipe with an emptying pneumatic valve. According to the oiling device, mixing uniformity of the oil agent in the oil tank can be improved, the possibility of oil dirt deposition in the oil tank is decreased, the stability of the oil agent is effectively improved, and oxidation destruction of air and humidity on the oil agent in the oil tank can be reduced.

The invention discloses a high-efficiency cotton blending machine, which includes a support, a storage tank is installed on the top of the support, storage tanks are evenly distributed inside the storage tank, and a Separator, the interior of the compartment is detachably installed with partitions, since the number of raw material bins and the number of storage tanks are in a one-to-one correspondence, so that each storage tank can be synchronized each time when feeding Feeding, thereby shortening the time required for feeding, and improving the production efficiency; when mixing, various materials enter the interior of the collecting rack one by one in small amounts, and enter and discharge under the rotation of the fan blade rack. The inside of the device is mixed by the stirring of the stirring frame, and then flows out, so that the collected raw materials can be directly mixed without buffering, thereby shortening the outflow of the mixed cotton, thereby improving the efficiency of the mixed cotton.