32results about How to "Increase collision speed" patented technology

The invention relates to a technique for extracting effective ingredients from a natural product, particularly a technique for extracting resveratrol and pigment from grape skin, which comprises the following steps: drying the grape skin, pulverizing, extracting resveratrol by ultrasonic waves, extracting pigment by ultrasonic waves, and purifying to obtain the resveratrol product and the pigment product. In the technical scheme provided by the invention, double solvents and ultrasonic extraction are integrated; the technical scheme provided by the invention has the advantages of high extraction efficiency, low extraction cost and low energy consumption by using the ultrasonic extraction technique according to the principle that the resveratrol and pigment in the grape skin have different solubilities in solvents with different polarities; the solvents used in the extraction process can be utilized cyclically, so that the solvent consumption is low, and the environmental influence is low, thereby avoiding destroying the bioactivities of the resveratrol and the pigment in the extraction process; and thus, the invention is suitable for extracting bioactive substances.

A protecting device is provided for pedestrians that accounts for various conditions of the collision (physical constitution of the pedestrian, the position of collision, the speed of the motor vehicle at the time of collision, etc.). In one form, a first airbag unit for inflating a first airbag to cover a portion of the cowl top upon collision with the pedestrian is provided at the rear part of the bonnet/hood, or in the cowl top. Second airbag units having second airbags for covering A-pillars are provided within the respective A-pillars. When collision with a pedestrian is detected, the first airbag is inflated so as to cover the portion in the vicinity of the cowl top. The second airbags inflate 5 to 30 mSec behind the ignition of a gas generator of the first airbag unit, and cover the A-pillars substantially entirely.

The invention relates to a combined thin-walled beam power absorbing method in a trolley collision test and belongs to the field of automobile passive safety. A standard thin-walled square steel pipe is adopted; a combination mode of the length and the thickness of the thin-walled square steel pipe is regulated to form an energy absorber in the trolley collision test; and the energy absorber solves the problems of high cost, single waveform, complex operation and poor repeatability and the like existing in the conventional trolley energy absorber. In the combination mode, the action time of each group of the thin-walled square pipe is controlled by controlling the length of each group of the thin-walled square pipe, so that a peak and a valley between the groups are mutually supplemented and a smooth deceleration waveform is obtained. The combination mode of the thin-walled square pipe can be determined according to the trolley quality and the deceleration curve; the average length of the thin-walled square pipe can be determined according to a collision speed; a mounting block is arranged on the trolley, so that the thin-walled square pipe and the trolley are connected in a close fit mode; and prestrain is applied to the front end of the thin-walled square pipe, and the front end of the thin-walled square pipe is rigidly collided with a fixing wall barrier without a buffer block directly, so that the deceleration waveform meets the test requirements. The method provides a practical solution for a large amount of safety performance collision tests and biological tests of auto parts.

The invention discloses a nozzle structure for multi-point injection of a heavy methanol engine. The nozzle structure comprises a common rail tube, wherein groups of nozzle assemblies equal to air cylinders of the engine in quantity are arranged on the common rail tube; each of the nozzle assemblies comprises at least two nozzles communicating the common rail tube to the air cylinder of the engine, and each of the nozzles is obliquely arranged toward the side wall of the air cylinder of the engine. The invention provides the nozzle structure for multi-point injection of the heavy methanol engine compact in structure and reasonable in design. By changing the quantity and injection directions of the nozzles, the demand, on single nozzle flow, of the engine is reduced, the control precision and the combustion efficiency of a methanol injection flow are improved, and the energy consumption is reduced.

The side airbag device includes an inflator and a side airbag that is stored in a folded state in a side portion of a seatback of a vehicle seat and is inflatable and deployable in a space between a vehicle sidewall and a side portion of an occupant. The side airbag includes an outer bag and an inner bag. The inner bag houses the inflator and is disposed at a rear portion of the outer bag along an extending direction of the seatback. The outer bag is provided with a vent hole configured to communicate with an outside. The inner bag is provided with a gas circulating hole configured to communicate with the outer bag. The gas circulating hole is disposed at a position to be blocked by the outer bag when the side airbag in an inflated and deployed state is pressed between the occupant and the vehicle sidewall.

The invention relates to the technical field of material crushing and drying, in particular to a slurrying steam flow crushing and drying machine which comprises a slurry storage cylinder, a heater, an air mill and a drying and collecting machine which are sequentially communicated, the slurry storage cylinder is connected with a slurry inlet pump and a slurry inlet pipe, and the slurry inlet pump is connected with the slurry storage cylinder and the heater through the slurry inlet pipe; materials in the slurry storage cylinder are conveyed into the heater to be heated; the air mill comprises a machine shell, a main shaft, a rotating target, a plurality of Laval nozzles, a classifying screen and a first driving mechanism used for driving the main shaft to rotate, the main shaft is rotatably and longitudinally arranged in the machine shell, the main shaft penetrates through and fixes the rotating target and the classifying screen, the classifying screen is located above the rotating target, and the Laval nozzles are arranged around the circumferential side of the rotating target. Each Laval nozzle is communicated with an outlet of the heater through a steam slurry pipe; a discharging port is formed in the position, located above the classifying screen, of the machine shell and connected with a drying and collecting machine through a discharging pipe, and the drying and collecting machine is provided with an exhaust mechanism for conducting air draft on the discharging pipe. And the cost is low, and the crushing efficiency is high.

The invention discloses a high-wave impedance self-restraint explosive welding method and device for a dissimilar metal composite pipe. The device is sequentially and concentrically provided with selectable outer constraint explosive, an outer mold, a selectable outer constraint layer, an outer pipe, an inter-pipe gap, an inner pipe, a selectable protection pipe, a pressure transmitting medium, a charging pipe, explosive welding explosive and a detonator from outside to inside. In the inter-pipe gap between the outer pipe and the inner pipe, the supporting and sealing structures are fixed at the two ends of the inter-pipe gap, so that the gap is kept uniform and sealed; wherein the external base body structure comprises an outer mold, an outer restraint layer and an outer pipe; the internal coating structure comprises an inner tube and a protective tube; the explosive welding cartridge comprises a charging tube and explosive welding explosive. By means of the method and device, distortion of the explosive welding pipe can be restrained, the straightness of the composite pipe can be improved, collision damage between an outer pipe and an outer mold is reduced, the adjustable and controllable range of welding parameters is widened, the risk of crack generation is greatly reduced, and the gap distance between all structures is accurately limited.

The invention discloses a preparation method of a moissanite blade material. The preparation of a moissanite particle material with a diameter of 0.45-0.5 [mu]m is mainly carried out according to thesteps of ''hammer crusher crushing -> ball mill crushing -> steam flow medium crushing and grading -> moisture grading and impurity removal -> pressure filtration dewatering -> drying and packaging''.When the material is in an jet mill, the high temperature and high pressure water vapor and the silicon carbide medium balls work together, so that the collision speed of logistics is accelerated, the shortage of logistics vectors is avoided, the electrostatic aerosol layer generated on the surface of moissanite during the crushing process is effectively removed, and moissanite is crushed into ultra-fine micro-powders with a median particle size of 0.6 [mu]m. According to the preparation method, the crushing effect on the silicon carbide raw material is good, and the crushing efficiency is high, so that the method is beneficial to the deep processing production of moissanite, and new functions of the product can be further developed.

The invention discloses a process for extracting resveratrol from peanut sprouts. The process includes: drying and crushing the peanut sprouts, ultrasonically extracting the resveratrol, and purifying to obtain resveratrol products. The process has the advantages that ethanol extraction is integrated with ultrasonic extraction, the ultrasonic extraction is used according to the feature that the resveratrol in the peanut sprouts is high in solubility in a weak-polarity solvent, the process is high in extraction efficiency, high in product purity and low in extraction cost and energy consumption, the solvent used in the process can be recycled, low in use amount and low in influence on environments, and the bioactivity of the resveratrol can be prevented from being destroyed during the extraction process.

According to the antibacterial filter element provided by the invention, antibacterial substances in the antibacterial filter element are granular, can float and roll in a certain space under the action of water flow, and are in full contact with the water flow, so that the bacteriostasis is more sufficient, and meanwhile, the overall utilization rate of the antibacterial substances is also improved. A filling area and a turbulent flow area are arranged in the central pipe, and the filling area is filled with the antibacterial particles; when the antibacterial filter element works, water flow enters the flow passing channel from the water inlet end, and the antibacterial particles turn over towards the turbulent flow area from the filling area along with the water flow, so that the antibacterial particles float in the flow passing channel in a free manner, the antibacterial particles continuously sterilize along with the water flow, and the continuous sterilization can bring a better antibacterial effect; the water passing through the antibacterial particles is high in antibacterial property, and the number of bacterial colonies is lower.

The invention relates to a technology for extracting effective ingredients from natural products and extracting resveratrol from mulberries. The technology comprises the steps that the mulberries are dried and smashed, and resveratrol is extracted through ultrasonic waves and purified to obtain the resveratrol. According to the technical scheme of the method, dual solvent and ultrasonic extraction and integration are adopted, the characteristic that the solubleness of the resveratrol in the mulberries is higher in weak polar solvent is utilized, and an ultrasonic extraction technology is utilized, so that the technology has the advantages of being high in extraction efficiency and product purity and low in extraction cost and energy consumption; the solvent used in the extraction process can be recycled and little in usage amount, so that the influence to the environment is lower, and the biological activity of the resveratrol is prevented from being destroyed in the extraction process.

The invention discloses an efficient stirrer for lubricating oil production. The stirrer comprises a mixing device; the top of the mixing device is fixedly connected with a driving structure; a fixing frame is arranged on the surface of the mixing device; a base is arranged at the bottom of the fixing frame; a first motor is arranged at the center of the top of the base in a penetrating manner; an output shaft of the first motor is fixedly connected with the fixing frame; and one side of an inner cavity of the fixing frame is rotationally connected with a connecting shaft through a rotating shaft. Violent mixing is achieved by increasing the collision speed between fluids, the tank body can incline under the action of a second motor, and thus, the stirring efficiency is further improved. The stirrer for lubricating oil production has the advantage of efficient stirring, the stirring postures of the stirrer are diversified, the lubricating oil in the stirrer can form fluids with different speeds and directions, the fluids in the tank body collide intensely, the lubricating oil is uniformly mixed in the process, and the efficiency is higher.

The invention discloses a hydrogen power metal solid deposition device and method, and belongs to the technical field of metal solid deposition. The device comprises a material conveying system, a Laval nozzle and a hydrogen recovery system, the material conveying system comprises a powder feeder and a gas heater, and the powder feeder and the gas heater are both connected with an inlet of a Laval nozzle arranged in the closed spraying chamber. The hydrogen recovery system is connected with the closed spraying chamber and an inlet of the gas heater so that hydrogen can circulate under the closed condition. Sprayed hydrogen in the closed spraying chamber is recycled through the hydrogen recycling system and enters the gas heater to be heated, and then the hydrogen serves as accelerating gas to continue to accelerate micron-sized powder particles to be sprayed, so that the micron-sized powder particle accelerating effect and the collision deposition performance can be remarkably improved efficiently at low cost; and the oxygen content of the additive metal deposition body is reduced, and the mechanical, electrical and magnetic properties of the metal deposition body are greatly improved.

The invention discloses an improved shot blasting machine for aluminum alloy castings. The improved shot blasting machine comprises a dust remover, a shot blasting machine body, a protecting door, a blasting head and springs; an electric hoist is arranged at the left end of the top of the shot blasting machine body; a guiding rail is arranged above the electric hoist; a supporting frame is arranged below the guiding rail; and an elevator is arranged at the right end of the guiding rail. A shot collecting groove is formed inside an original shot blasting machine, blasted steel shots can be better collected and can be conveyed out of a shot blasting chamber by the aid of a screw conveyor, and thus the smoothness of treatment of the castings inside the shot blasting chamber is kept; meanwhile, independent blade clamping grooves are formed in impellers inside a shot blasting device, are fixed by the aid of spring clamping plates and are convenient to dismount, so that blades can be changedseparately in case of failure, the blade changing speed is increased, and the utilization degree of the blades is increased; and the two impellers are arranged, so that the collision speed of the steel shots is increased, the casting treatment ability is improved, the service life of the shot blasting machine is longer, and the machining efficiency is higher.

The present invention discloses a feeding-type decoring device for a ginkgo fruit medicinal material. The feeding-type decoring device includes a treatment box; a feeding hole is formed in a middle position at the top of the treatment box, and the bottom of the feeding hole is fixedly connected with a decoring frame; one side of the treatment box is fixedly connected with a motor; an output shaftof the motor is fixedly connected with a rotating shaft; through holes are formed in two sides of the decoring frame, and the rotating shaft penetrates through the insides of the through holes; a blocking seat is fixedly connected to the middle position of the outer wall of the rotating shaft; two sides close to the middle position of the rotating shaft are fixedly connected with spiral blades; and the bottom of the treatment box is fixedly connected with a decoring cylinder. According to the feeding-type decoring device, ginkgo fruits are agitated by using the spiral blades so as to be drivento come into collision against the inner wall of the decoring frame, and thus, it is convenient to primarily dehusk and quantitatively discharge the ginkgo fruits; and the ginkgo fruits are extrudedto be decored by extruding a bulge, so that it is convenient to lead the decored ginkgo fruits out by virtue of a discharging pipe, and convenience is provided for discharge.