38results about How to "Increase the degree of blending" patented technology

The invention relates to the field of polymer materials, and discloses a PA6-56 copolymerized material and a preparation method thereof. The PA6-56 copolymerized material is prepared through blend polymerization of liquid caprolactam and a water solution of pentamethylene diamine adipate, wherein the molar ratio of the liquid caprolactam to the pentamethylene diamine adipate is 7:3-9:1. The methodcomprises the following steps: mixing the liquid caprolactam, the water solution of the pentamethylene diamine adipate and other reaction raw materials according to a certain proportion, carrying outstirring in a reactor under the protection condition of inert gas, and carrying out a polycondensation reaction at a temperature of 150-300 DEG C, so as to obtain the PA6-56 copolymer material. According to the invention, PA6 monomer caprolactam is mainly copolymerized with PA56 monomer pentamethylene diamine adipate to prepare the PA6-56 copolymer material, and the material not only has the advantages of high strength, wear resistance, acid and alkali resistance of PA6, but also has better hygroscopicity and dyeability, so that better wearing comfort and more abundant color are provided to the textiles.

The invention provides a two-phase high-frequency pre-detonator. The two-phase high-frequency pre-detonator comprises a pneumatic valve and a detonation duct, wherein a fuel and air distribution and mixing device, a flame diffusion device, an intensified combustion device A, an intensified combustion device B and a shock reflection device are sequentially installed in the denotation duct along the flowing direction of air and fuel, the distance L1 between the front end surface of the fuel and air distribution and mixing device and the front end surface of the denotation duct is 1.0-2.0D, an ignition groove is processed on the wall surface of the denotation duct between the fuel and air distribution and mixing device and the flame diffusion device, the distance L2 between the rear end surface of the fuel and air distribution and mixing device and the front end surface of the ignition groove is 0.5-0.7D, and the distance L3 between the rear end surface of the ignition groove and the front end of the flame diffusion device is 1.0-1.2D. The two-phase high-frequency pre-detonator has the advantage that the conversion from slow combustion to denotation is realized in a short distance by reasonably designing the internal structure of a denotation chamber, optimizing all major parts and installation positions and adopting a combined method of intensified combustion and shock reflection.

The invention discloses a processing technology of an instant tea tree flower food, wherein the tea tree flower food is prepared from tea tree flowers, lotus leaves, white kidney beans, opuntia ficus-indica, burdock and purple sweet potatoes. The preparation method comprises the following steps: 1, preparing an additive solution; 2, cooking tea tree flowers; 3, continuously beating and mixing theadditive solution and the cooked tea tree flowers by adopting a specially-made mixing device; and 4, freeze-drying, sterilizing and packaging the mixture. According to the invention, tea tree flowersare cooked and scientifically matched with lotus leaves, white kidney beans, opuntia ficus-indica, burdock, purple sweet potatoes and the like, so that the original bitter taste of the tea tree flowers can be removed, and good mouth feel of the instant tea tree flowers is formed; the finished product is directly prepared through a freeze-drying technology, so that the functional components of thetea tree flowers are completely reserved, and the instant tea tree flowers have all nutritional components and health-care functions of the tea tree flowers; and the instant tea tree flower food withgood taste, nutrition and health care is obtained.

The invention discloses a wood-plastic plate and a preparation method thereof to solve the problems that the existing straw plate is poor in water resistance, high in water expansion rate, easy to deform, poor in screw holding capability and high in gel content. The wood-plastic plate comprises the following raw materials in parts by weight: 70-90 parts of fine straw powder, 0.5-1 part of diphenylmethane diisocyanate and 10-30 parts of polylactic acid and carboxymethyl composite starch, wherein during the preparation of the polylactic acid and carboxymethyl composite starch, the added amount of the polylactic acid is 6-10 times of the mass of carboxymethyl starch. The preparation method of the wood-plastic plate comprises the steps of pretreating straws, preparing a single-layer straw composite plate, and preparing a three-layer straw composite plate. The wood-plastic plate disclosed by the invention has performance advantages of woods and plastics, and product materials are biodegradable materials and do not contain harmful substances including formaldehyde and the like to human bodies. The product is high in hardness, high in strength, difficult in deformation and strong in load bearing capacity.

The invention provides a mini type engine combustion chamber evaporation pipe structure with a whirlcone. By means of the structure, the mixing degree between fuel oil in a mini type combustion chamber and air can be effectively improved, forming of a backflow area is facilitated, and accordingly the combustion efficiency and the combustion stability are improved. A double-level whirlcone structure is additionally arranged at a tail end outlet of an evaporation pipe, and due to the fact that a certain angle is formed by each of a first-level whirlcone blade and a second-level whirlcone blade and the axis of the evaporation pipe, after the mixed airflow of the fuel oil and air passes through the first-level whirlcone blade and the second-level whirlcone blade, the flowing state changes, rotational flow is formed, and the oil-gas mixing degree is improved; and a certain backflow area can be formed in the combustion chamber through the rotational flow, accordingly airflow is stabilized, flames are more stable, and better combustion is promoted. On the other hand, due to the fact that the first-level whirlcone blade and the second-level whirlcone blade are opposite in rotation direction, large shear force can be generated between two-level ejected airflow, later fuel oil liquid drops and evaporated fuel oil liquid drops in the evaporation pipe can be better atomized, the oil-gas mixing degree can be better improved, and the combustion efficiency is improved.

The invention discloses a bionic straight-line-rib-row type tiny staggered alveolar heat exchanger core. The core comprises at least two layers of medium flowing cavities separated by a heat exchangeplate, at least two layers of straight-line type rib rows are arranged in each layer of medium flowing cavity, each straight-line type rib row is composed of a plurality of straight-line rib strips parallel to each another, and every two adjacent layers of straight-line rib strips are staggered. Bionic elements are integrated into the design of the heat exchanger to design the tiny staggered alveolar heat exchanger, the structure improves the performance of the heat exchanger from two aspects including the heat transfer coefficient and the heat transfer area, the structure is light and simpleand convenient, and the core is suitable for an aerospace heat exchanger.

The invention provides a rotary injection type evaporation tube structure of a combustion chamber of a micro engine. The structure can effectively improve the mixing degree of fuel in the micro combustion chamber and air, so that fuel distribution is more uniform, combustion is more sufficient, and the combustion efficiency is improved. By using four rotating branch pipeline structures at the tailend of an evaporation tube, air flows are sprayed out simultaneously from outlets of the four rotating branch pipeline structures and have evaporation tube axial speed and radial speed, the four airflows act on one another to form a rotational flow, and then the fuel-air mixing degree is improved; besides, a certain backflow area can be formed in the combustion chamber so that the air flows canbe stabilized, flame is more stable, and better combustion is promoted.

The invention provides a structural design scheme of a micro engine flame tube with internal and external hedging guide vanes. Compared with a traditional micro engine flame tube, by arranging the internal guide vanes and the external guide vanes on the portions, close to the front end of the flame tube, of an inner shell and an outer shell of the flame tube, airflow entering the flame tube from an external primary hole becomes rotating inward airflow with three kinds of component velocities in the axial direction, the tangent direction and the radial direction, the velocity of the airflow entering the flame tube from an internal primary hole adopts outwards rotating, and the internal airflow and the external airflow are encountered and subjected to hedging in the flame tube; on one hand,the airflow velocity is lowered to form a low velocity zone, the internal airflow structure of the flame tube is improved, and then stable combustion is achieved; on the other hand, the hedging area has very high scale of turbulence, fuel oil is sprayed into the area to be better mixed with air, and combustion is more thorough.

The invention discloses a fume temperature uniform distribution device of a rotary air preheater outlet flue. The fume temperature uniform distribution device comprises a U-shaped flue, a flue opening of one end of the U-shaped flue is connected with a rotary air preheater outlet, and two independent deduster connecting pipes are arranged on a flue opening of the other end of the flue side by side. The pipeline of the U-shaped flue is a rectangular channel, the U-shaped flue comprises an outer wall surface and an inner wall surface, and the outer wall surface and the inner wall surface are mutually parallel. A plurality of airfoil blades are arranged on the inner surfaces of the outer wall surface and the inner wall surface in the direction of flue gas emission, and the deflecting directions of the airfoil blades on the outer wall surface and the airfoil blades of the inner wall surface are opposite. According to the fume temperature uniform distribution device of the rotary air preheater exit flue, the problem that fume temperature in an air preheater outlet flue of a power plant is nonuniform is efficiently relieved, the flue gas treatment performance of downstream flue gas treatment devices of the power plant is improved, and great social benefits and economic benefits are predicted to obtain.

The invention discloses a fishbone-type tiny staggered alveoli heat exchanger core based on bionics. The fishbone-type tiny staggered alveoli heat exchanger core comprises a shell. The core in the shell is divided into two layers through a heat exchanging plate. Two layers of fishbone-type rib assemblies are arranged in each layer of cavity, and each layer of fishbone-type rib assemblies is constituted by a plurality of columns of mutually-parallel fishbone-type ribs. Each column of fishbone-type ribs is constituted by a plurality of pairs of short ribs which are arranged in a splay mode, andthe multiple pairs of short ribs of the same column are the same in shape, angle and separation distance. The two layers of fishbone-type ribs do not make contact and are fixed to the inner walls of medium flowing cavities correspondingly. Bionic elements are incorporated into design of a heat exchanger, the tiny staggered alveoli heat exchanger is designed, the properties of the heat exchanger are improved from the two aspects of the heat transfer coefficient and the heat transfer area through the fishbone-type tiny staggered alveoli heat exchanger core, and the fishbone-type tiny staggered alveoli heat exchanger core is light, simple and convenient, and is suitable for being used for the heat exchanger for aerospace.

The invention provides a trapped vortex tail wing carburetor of a throttle. In the invention, a trapped vortex tail wing (4) is additionally arranged below or behind a plunger throttle (2) or a diaphragm throttle (6) in a carburetor body assembly (1), through vortex shedding and the swept effect of a trapped vortex of the trapped vortex tail wing (4) of the throttle, after an air flow flows around to a low pressure region behind the throttle, the loss is lowered, and secondary rotational speed of a mixed gas is formed, thereby increasing the power and the combustion efficiency of an engine, and reaching the purpose of saving fuel oil.

The invention discloses a casting electric furnace good in stirring effect. An electric furnace body, an electric heating wire, a stirring shaft and fan blades are included; a heat insulating plate isplaced at the bottom of the electric furnace body, and is placed at the groove bottom position of a rotating table; the rotating table wraps the electric furnace body; a tooth ring is welded and fixed to the bottom of the rotating table; a gear is engaged to the tooth ring; and a gear shaft is installed at the axis position of the gear through a key. The casting electric furnace good in stirringeffect is simple in structure, low in production cost and suitable for transformation on an existing electric furnace, the electric furnace body is made to rotate eccentrically, further sufficient blending of molten metal in the electric furnace body is effectively promoted in the rotating process, and the blending effect is greatly improved; the heat insulating plate avoids damaging and deformingof the tooth ring, the gear and other parts caused by high temperature; a spring A and a spring B have a good buffering shock absorbing effect, splashing leakage of the molten metal is avoided, the potential safety hazards are greatly lowered, and the casting electric furnace good in stirring effect is worthy of using and popularizing.

The invention discloses a homodromous reverse spiral mixing device.A plurality of spiral flow deflectors are arranged on the inner side of an outlet section of an internal fluid pipeline; and a plurality of reverse spiral outer flow deflectors of which the spiral direction are opposite to the spiral direction of the spiral flow deflectors are arranged on the outer side of the outlet section; when two kinds of fluid in the internal pipeline and an outer pipeline flow in the same direction, under the action of the spiral flow deflectors in the opposite directions, the inner fluid and the outer fluid have a large tangential speed difference at an approximately-annular intersection, then a plurality of slightly-inclined flow direction vortexes are formed, the flow direction vortexes entrain the inner fluid and the outer fluid nearby the flow direction vortexes together to intensively mix the inner fluid and the outer fluid, and the torque borne by the pipelines can be greatly reduced; the inner and outer fluids can also form spanwise vortexes by utilizing the speed difference in the axial direction, so that the mixing degree of the inner and outer fluids is increased; and the two kinds of vortexes interact with each other, and the two fluids are fully mixed through high-speed impact, violent friction, strong extrusion, tearing and crushing between the fluids, so that the mixing effect required by production or test can be met.

The invention provides an air-lubricating oil surface type radiator. The inner wall of a heat exchange pipeline of the radiator is provided with rifled threads, and the outer wall surface of the heatexchange pipeline is provided with an axial key groove; and the radiator with an enhanced heat exchange structure is fixed at an air inlet of an engine outer duct and becomes a main radiator in an engine lubricating oil cooling system. According to the air-lubricating oil surface type radiator, by changing the shape of the heat exchange pipeline, the effective heat exchange areas inside and outside the pipeline and the turbulence degree of the flow of fluid inside and outside the pipeline are increased under the condition of minimizing the loss of the lubricating oil pressure inside the pipeline and guaranteeing the quality of the radiator, so that the thermal resistance of the inner wall of the pipeline is effectively reduced, and the integral heat exchange capacity of the radiator is effectively improved.