33results about How to "Prevent outward spread" patented technology

The invention discloses an oil fume absorbing and noise reducing device of a range hood. The device comprises a volute fixedly connected with a box body of the range hood, wherein a wind turbine and a motor driving the wind turbine to rotate are arranged in the volute, a sound absorbing member connected with the box body is arranged inside the wind turbine, the sound absorbing member comprises a sound absorbing shell which is provided with a shell cavity, a plurality of sound absorbing through holes communicated with the shell cavity are formed in the wall of the sound absorbing shell, and the shell cavity is filled with a sound absorbing material. The device is simple in structure and good in noise reducing effect.

The invention discloses a chitosan-coated vitamin C micro-capsule. The chitosan-coated vitamin C micro-capsule is prepared from, by mass, 0.4-2.5 parts of vitamin C, 0.02-0.04 part of anhydrous magnesium sulfate, 15.5-27.0 parts of soybean oil, 0.4-0.6 part of Span 80, 0.6-1.2 parts of glacial acetic acid, 0.6-1.0 part of chitosan, 1.6-2.9 parts of polysorbate 80, 0.4-0.6 part of curing agents and the balance deionized water. The invention further provides a preparing method for the chitosan-coated vitamin C micro-capsule. The chitosan-coated vitamin C micro-capsule prepared by adopting a multiphase emulsion method is of a regular spherical multi-core structure, and the coverage rate of vitamin C can be 20-50%. The prepared vitamin C micro-capsule effectively prevents the vitamin C from being oxidized, and has good biocompatibility and degradability.

This invention relates to a manufacturing method for internal connection lines including providing a dielectric layer with many open-ends in it, then forming a metal layer to full-fill these open-ends then forming a first dielectric blocking layer to cover the dielectric and the metallic layers, after that, forming a second dielectric blocking layer on the first to mend the first one to increase the reliability and productivity of the technique.

The invention discloses a geogrid with anchoring nails and a construction method thereof. The geogrid comprises a geogrid body, a plurality of anchoring nail heads and anchoring nail bodies, the geogrid body is composed of a longitudinal main grid bar, an oblique grid bar and a longitudinal auxiliary grid bar, and the multiple anchoring nail heads are connected to the longitudinal main grid bar ofthe geogrid body at equal intervals; the anchoring nail bodies are connected in embedded blocks at the bottom of the anchoring nail heads, anchoring tip cones are arranged at the bottom ends of the anchoring nail bodies, and expansion fins are arranged on the side walls of the anchoring tip cones; and a plurality of expansion cone rings are arranged on the side walls of the anchoring nail bodiesat equal intervals, and expansion gear rods are connected to the anchoring nail bodies at the rear sides of the expansion cone rings. The structural strength and the tensile strength of the geogrid body are enhanced, anchoring stability of the anchoring nail bodies is improved, the contact surface between the geogrid body and the soil body is strengthened, the connection strength is enhanced, connection between the geogrid body and the soil body is realized, the bearing capacity and stability of the soil body are improved, and paving for the geogrid body is realized.

A method for enhancing stability of a fluorinated silicon glass layer is disclosed. A fluorinated silicon glass layer provided on a substrate is subjected to a phosphorous-containing and hydrogen-containing gas such as phosphine (PH₃), for example. The gas forms reactive hydrogen species which removes fluorine radicals and reactive phosphorous species which forms a moisture-gettering and ion-gettering phosphorious oxide film the layer.

The invention relates to a method of additive manufacturing components, in particular to a method used for improving residual compressive stress of a laser additive manufacturing component. The methodcomprises the steps that powder materials are sequentially subject to agglomeration on the face of a substrate to form multiple lamination pieces which are stacked layer by layer from bottom to top,and in the process, after every time one or multiple lamination pieces are formed, the steps from S10 to S30 are executed; S10, a light-proof protection film is pasted on the surfaces of the lamination pieces, and the surface of the protection film is coated with liquid to form a liquid thin film on the protection film; S20, a pulse laser beam is adopted to shoot the protection film to enable theinterior of the additive manufacturing component to generate the compressive stress; S30, the protection film is removed. Pressure peaks formed by impact waves generated by the technology exceed the yield strength of the lamination layer of the lamination pieces to enable the interior of the lamination layer of the lamination pieces to generate plastic deforming and the residual compressive stress, all stretching stress can be offset, the fatigue crack extension can be effectively reduced, and the fatigue performance of the laser additive manufacturing component can be improved.

The invention relates to a flue-curing tobacco device and a heating assembly with a vacuum heat insulation effect. The heating assembly comprises an outer pipe and an inner pipe. The outer pipe sleeves the inner pipe, the two ends of the outer pipe are fixedly connected to the outer wall surface of the inner pipe, and a vacuum area is formed between the inner wall surface of the outer pipe and theinner pipe. The inner pipe includes an inner pipe body and a heating circuit which is disposed on the surface of the inner pipe body and used for heating after being energized, and an axial positionof the heating circuit on the inner pipe body is located in an axial interval where the vacuum area is located. The inner pipe of the heating assembly does not participate in direct heating, the speedof heat dissipation of the inner pipe to the outside can be decreased, and rapid dissipation of heat to the outside can be avoided; in addition, the inner pipe does not participate in direct heating,there is no need to arrange a special heat insulation structure between the outer pipe and the inner pipe, the fixing mode between the outer pipe and the inner pipe can be simplified, a heating partand a heat insulation part are more compact in size, there are fewer parts, the structural design is simple, the size of a product is decreased, and the product is more convenient to carry.

The invention discloses a domestic heating device which comprises a heating device body, a heat insulation box, a radiator and a drinking water bucket which is provided with a radiating pipeline. The heating device body comprises a cuboid shell and a metal heat conduction block, wherein the top of the cuboid shell is provided with a water inlet pipe and a water outlet pipe, and the metal heat conduction block is arranged in the shell. The heat conduction block makes contact with the inner surfaces of the parts, except the top, of the interior of the shell. A snakelike bend space and multiple U-shaped spaces parallel to the bend space are arranged in the heat conduction block. A medium pipe is arranged in the bend space in a contact manner, and heating pipes are contained in the U-shaped spaces. The heat insulation box is arranged outside the shell of the heating device body in a sleeving manner and comprises an aluminum foil layer attached to the outer surface of the shell, water drums which are arranged on the outer surface of the aluminum foil layer at intervals and protrude outwards, glass wool wrapped on the outer surface of the aluminum foil layer and the outer surfaces of the water drums and arranged in grooves formed by the intervals of the water drums in a filling manner, and a heat insulation box shell wrapped on the outer surface of the glass wool. The domestic heating device has the beneficial effects that temperature rising is fast, the heat energy utilization rate is high, and drinking water can be heated.

The invention discloses a high-power charging connector cooling device for a new energy automobile. The high-power charging connector cooling device comprises a cable, a cooling fin, a thermoelectricrefrigeration sheet, a refrigeration disc, a cooling inner pipe, an outer pipe and a terminal cooling disc; the cooling inner pipe is designed in the cable, penetrates through the refrigeration disc and then is connected with the terminal cooling disc in a sealed mode, a hollow flow channel is formed in the terminal cooling disc, and a leakage detection sensor is arranged between the terminal cooling disc and the refrigeration disc; a thermoelectric refrigeration sheet and a cooling fin are bonded to the upper surface of the refrigeration disc to fully refrigerate the cooling liquid; and the cooling device has the advantages of the high heat dissipation speed, leakage pollution prevention and convenient leakage detection.

The invention relates to the technical field of sewage treatment and resource recycling, in particular to a device for recovering nitrogen, phosphorus and organic matter resources in sewage. The device mainly comprises filter cloth, a biological film, a light source, a rotating shaft, a scraper, a curtain and an air storage tank, wherein the filter cloth is connected into a whole end to end and issupported by the rotating shaft; the filter cloth is distributed in a wave form in the horizontal direction, and the wave-shaped bottom is positioned in water; the scraper is correspondingly arrangedon the surface of the filter cloth; CO2 is injected into a closed space formed by the filter cloth and the curtain. The biological film is periodically soaked in water and exposed in air, so as to transfer the nitrogen, phosphorus and organic matters in the water into the biological film by utilizing the surface adsorption/absorption effect of the biological film in the water and by virtue of photosynthesis in air. By supplementing the light source and injecting the CO2, the photosynthetic efficiency of algae and the like in the biological film is enhanced and improved. Eutrophication causedby sewage is solved, resource recycling of the nitrogen, phosphorus and organic matters is realized, and the process is simple, stable, reliable and efficient in operation.

The invention provides a resistance composite type pressure pulsation attenuator with length direction restraint. An attenuation cavity and a perforated pipe are included. The perforated pipe is located at the axial center position of the pulsation attenuator. A two-section circular pipe type micro perforated pipe structure is adopted in a body structure, and a baffle with a center axial through hole is arranged between the two sections of structures. The perforation rate of the perforated pipe body structure is 10%-20%. The attenuation cavity coaxially sleeves the outer portion of the perforated pipe body structure, and an elastic rubber layer is vulcanized on the inner wall face of the attenuation cavity. The resistance composite type pressure pulsation attenuator has the characteristicsthat the structure size is compact, pressure losses are few, and the pressure pulsation attenuation effect is excellent; and the resistance composite type pressure pulsation attenuator is suitable for the hydraulic field with the extremely high limiting requirements for the size space and the pulsation attenuation effect.

The invention discloses a microorganism-based inhibitory water treatment system, and belongs to the field of water treatment. The microorganism based inhibitory water treatment system includes a plurality of microorganism balanced degradation benchmarks, wherein the microorganism balanced degradation benchmarks are evenly distributed in sewage; the microorganism balanced degradation benchmarks include microorganism inhibition storage barrels, connecting pipes and auxiliary floating plates, the microorganism inhibition storage barrel are connected to the lower ends of the connecting pipes, andthe auxiliary floating plates are connected to the upper ends of the connecting pipes. The inhibitory circulating water treatment system of microorganisms in the sewage in the scheme is composed of the multiple microorganism balanced degradation benchmarks, the multiple microorganism balanced degradation benchmarks are evenly distributed in the sewage, the microorganism balanced degradation benchmarks are used for automatically balanced management of the microbial degradation in the sewage, so that the microbial degradation rate of the sewage is kept at a high value, an improved basis for further promoting the microbial degradation rate is provided, and the urgency of sewage pollution treatment is fundamentally alleviated.

The invention relates to a method for detecting uric acid in body fluid by a quantum dot, and relates to a method for detecting the content of uric acid by adopting a water soluble CdSe/ZnS quantum dot. By utilizing the characteristics that hydrogen peroxide can oxidize catechol under the action of HRP (horseradish peroxidase), and the oxidized product can allow the fluorescence of the quantum dot to be efficiently quenched, the uric acid concentration in a sample to be tested is obtained. The method provided by the invention has the characteristics of high sensitivity, low toxicity, high specificity, and good accuracy.

The invention discloses a three-layer co-extrusion mute drain pipe and a preparation method and an application thereof. The components of a three-layer structure are improved, and a sound absorption viscoelastic inorganic material and a defoaming agent are added to a middle core layer, so that sound waves generated in the water flow process can be absorbed, sound is prevented from being spread outwards, and the good noise reduction and mute effects are achieved; according to the present invention, the internal molecular structure of the pipe is improved, the compactness and the density of the pipe are improved, the softening temperature of the pipe is significantly increased, the pipe is not easily aged under the long-term sunlight exposure, the service life is long, the modulus is high, the pipe has high ring stiffness and strong acid-base corrosion resistance, the acid resistance can achieve pH2, the alkali resistance can achieve pH12, and the liquid with the pH2-pH12 can be arbitrarily discharged. According to the three-layer co-extrusion mute drain pipe, the materials of the inner layer, the outer layer and the middle layer are reasonable in proportion, the service life is long, and the application range is wide.

The invention relates to the technical field of dry-wet separation, particularly to a multistage wind power type plastic garbage dry-wet separation method. The uses equipment comprises a sorting box,wherein a material inlet is formed in the top of the sorting box, a spiral feeding mechanism is arranged at the top of the sorting box, a first material outlet is formed in one side of the bottom of the sorting box, a second material outlet is formed in the other side of the bottom of the sorting box, a first wind suction and supply device is arranged between a first gas inlet and a first gas outlet, a second wind suction and supply device is arranged between a second gas inlet and a second gas outlet, and a third wind suction and supply device is arranged between a third gas inlet and a thirdgas outlet. According to the invention, by using the fully-closed structure, the gas flow is in an internal circulation mode, so that the outward diffusion of poisonous and harmful gas is avoided; through three-stage gas flow sorting, the contact time of garbage and gas flow is prolonged; and through the matching adjustment of the spiral feeding mechanism and the wind suction and supply devices,the classification treatment of different types of garbage and garbage with different water contents can be met.

The invention discloses a traditional Chinese medicine composition for the treatment of bovine mastitis. The composition is prepared from 9 Chinese medicinal materials including radix bupleuri, Chinese violet, dandelion, wild chrysanthemum flower, forsythia, herba andrographis, pangolin, musk and toad venom. The composition contains a plurality of biological active ingredients including alkaloids, glycosides and organic acids, has the same source with the feed, easiness for absorption and no toxic or side effect, has the effects of clearing heat, detoxifying, resisting bacteria, relieving inflammation, stimulating the menstrual flow, invigorating blood circulation, subsiding swelling, relieving carbuncle, activating channels and promoting lactation, and can promote animal growth and development and enhance the immunity of animals.

The invention discloses traditional Chinese medicine composition for treating dairy cow mastitis. The composition is prepared from nine kinds of crude medicines such as radix bupleuri, herba violae, dandelions, wild chrysanthemum flowers, fructus forsythiae, common andrographis herbs, pangolins, musk and venenum bufonis. The composition contains various bioactive components such as alkaloids, glycoside, organic acids and the like, is homologous and coessential with fodder, easy to absorb, free from toxic and side effects and capable of promoting individual growth and development of animals and enhancing the immunity of the animals and has effects of clearing heat, removing toxic materials, eliminating bacteria and inflammations, restoring menstrual flow, promoting blood circulation, decreasing swelling, relieving pain, activating collaterals and promoting lactation.