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65results about How to "Reduce overuse" patented technology

Machining process of axial-flow type turbine blade

The invention discloses a machining process of an axial-flow type turbine blade. The machining process of the axial-flow type turbine blade comprises the following steps that two side faces are machined on a square blank stock through an end face end mill on an ordinary milling machine through two process of rough milling and finish milling, another two side faces are machined with the two machined side faces as base planes, and then the two end faces are machined through the end face end mill; a steam outlet side face is machined on one side face through two process of rough milling and finish milling, the position, close to the steam outlet side face, of the blade root end face is marked as C, a face which forms an acute angle with the steam outlet side face and is adjacent to the steam outlet side face is marked as N and is the inner radial surface, and the other three side faces are machined to be a parallelogram through rough milling and finish milling; central holes are drilled in the blade root end face and the blade crown end face; the blade type is roughly milled through the end face end mill, the blade root is roughly milled, and finally the blade crown is roughly milled; then the blade is installed on a five-axis numerical control machining center for alignment and is machined in a finish mode; a process head at the blade root end face is roughly sawn through a sawing machine; the turbine blade is detected according to the requirements of a drawing.
Owner:南京赛达科技有限公司

Novel automobile engine hydrogen and ammonia blended fuel supply device

The invention provides a novel automobile engine hydrogen and ammonia blended fuel supply device, which comprises an ammonia generation device, wherein an external power supply can be used for storing ammonia prepared from electrolysis into a liquid ammonia tank under a general condition of parking; hydrogen produced from ammonia decomposition can also be stored in a hydrogen storage tank, and the ammonia and the hydrogen can be jointly used as engine fuel when an engine works. The device can externally be added with ammonia fuel to guarantee fuel supply. The device is characterized in that catalytic decomposition can be carried out by the exhaust gas heat of the engine or with electric energy heating ammonia to effectively improve heat energy use efficiency; the ammonia and the hydrogen are used as the engine fuel to effectively eliminate the emission of greenhouse gases, such as CO2 and the like and substantially lighten pollution on the environment by harmful emissions, such as CO, PM (Particulate Matter) and the like; the overuse of petroleum can be effectively alleviated, and the blended fuel is used for replacing gasoline to serve as the green environmentally-friend fuel of the automobile. According to the device, the ratio of hydrogen and ammonia fuel can be controlled through an automobile electronic control unit (ECU) to improve engine combustion efficiency, and the ignition reliability of the fuel is extremely high.
Owner:王海斌

Technique for producing new energy by using firewood, grass and straws to treat CO2 in blast furnace tail gas

The invention discloses a technique for producing new energy by using firewood, grass and straws to treat CO2 in blast furnace tail gas. The technique comprises the following steps of: scientifically treating the firewood, the grass and the straws to obtain mixed gas, filling the tail gas into treatment tanks A and B for later use after the mixed gas is treated by A and B treatment systems respectively, reclaiming all the blast furnace tail gas through a C treatment system and filling the tail gas into a treatment tank C, then conveying the gas in the treatment tanks A, B and C to an activation tank with compressing respectively, compressing the activated gas to form liquefied gas and non-liquefied gas, directly charging the liquefied gas for users, treating and reclaiming the non-liquefied gas, and discharging the pollution-free gas to the atmosphere. The whole production system does not consume the conventional energy; the pollution emission is zero; ground natural gas, liquefied gas, mixed anthracene oil, mixed naphthalene oil, light oil, steam generated power and the like are produced at the same time; the economic and social benefits are very good; and the energy conservation and emission reduction effects are very obvious.
Owner:伍思宇

Method of version upgrade of network device and network device

Embodiments of the invention disclose a method of a version upgrade of a network device and a network device relating to the field of communications. The method of the version upgrade of the network device and the network device resolve a technical question that network congestions are caused by overmuch occupations of network bandwidths caused by forwards of a large number of broadcast messages during the version upgrade of the network device. The concrete proposals are that: forwarding planes of the network device are configured into a first forwarding plane and a second forwarding plane, forwarding messages are sampled on the first forwarding plane by a preset sampling proportion to acquire sampling messages, and the sampling messages are performed broadcast forwards by the second forwarding plane to learn MAC addresses. When the amount of learned MAC addresses by the second forwarding plane achieves a preset threshold, the broadcast forwards of the network device of the second forwarding plane is upgraded. The technical proposals provided by the embodiments of the invention can effectively avoid generations of a large number of the broadcast messages during the course of the version upgrade, be capable of reducing the overmuch occupations of the network bandwidths, and avoid the network congestions.
Owner:HUAWEI TECH CO LTD

Four-axis linkage milling machine processing method for steam turbine blade

The invention relates to a four-axis linkage milling machine processing method for a steam turbine blade. The steam turbine blade structurally comprises four parts: an inner arc, a back arc, a steam outlet edge and a steam inlet edge. The four-axis linkage milling machine processing method for the steam turbine blade comprises the processing steps of clamping a blank onto a pair of flat tongs of acommon milling machine, and utilizing an end mill clamped on a port of the common milling machine for processing a blade root end surface and a blade crown end surface through a rough milling processand a finish milling process; clamping the processed blank onto a three-tip fixture on a four-axis milling machine, adopting a ball-end cutter arranged on a port of the four-axis milling machine forsegmentally processing the blade root end surface, a middle boss and the blade crown end surface, cushioning a cushion block to the bottom part of the blade root end surface, and meanwhile, using a molded line sample plate, a back radial position sample plate, an inner radial position sample plate, a blade crown inner radial direction and a steam inlet side sample plate for measuring; and clampinga semi-finished blade onto a polishing machine for polishing, clamping a polished semi-finished product onto a milling total length fixture of the common milling machine, and scribing and cutting theblade crown inner back radial direction. The processing cost is reduced, the processing period is shortened, and the product quality is improved.
Owner:常州凯度机电有限公司

Efficient ladle baking device

The invention provides an efficient ladle baking device. The efficient ladle baking device comprises a baking device body, a cover and a flame retardant layer, wherein the lower end of the baking device body is connected with the upper end of the cover; the lower end of the cover is connected with the flame retardant layer; the lower end of a burner composed of a conical body, a flow mixing cavity, an electronic igniter, a combustion cavity and a firing stabilizer is arranged at the lower end of the flame retardant layer, and the upper end of the burner is arranged on the upper portion inside the baking device body; the upper end of the burner is connected with an air cavity through an electric adjustment valve; an air heat exchanger is installed on the lower portion of the air cavity; one end of the air heat exchanger is connected with a smoke inlet, and the other end of the air heat exchanger is connected with a smoke outlet; an air inlet is formed in the lateral surface of the cover; the upper end of the burner is provided with a fuel gas inlet communicating with an outlet of a fuel gas heat exchanger; the conical body is arranged at the fuel gas inlet of the burner; an inlet of the fuel gas heat exchanger is connected with a fuel gas pipeline through a fuel gas valve and a flowmeter; and the ladle baking device is further provided with an intelligent control device. The efficient ladle baking device has the advantages of saving energy and labor, improving safety performance and the like.
Owner:大连新瑞晨环保科技有限公司

A Machining Technology of Axial Flow Turbine Blade

The invention discloses a processing technology of an axial-flow steam turbine blade. The processing of the steam turbine blade is processed according to the following steps: firstly, the blank square is passed through an ordinary milling machine with an end mill for the end face, and two processes of rough milling and fine milling are firstly processed, and two sides are processed first. , and then take the two sides processed first as the reference plane, process the other two sides, and then use the end mill to process the two ends; on one side, after the two processes of rough milling-finish milling, first process the steam outlet side and Mark "C" on the end surface of the blade root close to the steam outlet side, mark "N" on the surface adjacent to the steam outlet side and form an acute angle is the inner radial surface, and process the remaining three sides into a parallelogram through rough milling-finish milling ;Drill the center hole on the end face of the blade root and the end face of the blade crown; use the end mill to rough-mill the blade shape first, then rough-mill the blade root, and finally rough-mill the blade crown; then install it on the five-axis CNC machining center after alignment, Finishing; Rough sawing of blade root and end surface process head by sawing machine; Inspection of steam turbine blades according to drawing requirements.
Owner:南京赛达科技有限公司

Special feed core material for granulation and feed prepared from material

ActiveCN103750014AMeet the nutritional needs for normal growth and developmentReduce anti-nutritional factorsAnimal feeding stuffNutritive valuesProcess engineering
The invention discloses a special feed core material for granulation and a feed prepared from the material. The special feed core material is characterized in that each 1,000 parts of special feed core material comprises the following raw materials in parts by weight: 106-135 parts of vitamin, 345-400 parts of amino acid, 35-76 parts of a medical feed additive, 139-181 parts of microecologics, 58-100 parts of a particle swelling agent and the balance being carriers. The special feed core material is added with the raw materials including corn, bean pulp and the like according to a proper main ingredient formula, and pig granulated feeds meeting the requirements of different stages of pigs can be produced by utilizing a matched small-size granulation machine. According to the special feed core material, a nutritional ingredient loss phenomenon occurring in a processing process of a granulated complete feed can be avoided, the maximum of the nutritive value is realized, and an optimal utilization effect is realized; the produced granulated complete feed is good in palatability and digestive performance and high in crispness, the whole operation process is convenient and rapid, the quality is controllable, and the cost is low.
Owner:河南雄峰科技股份有限公司

Bend pipe fitting

The invention discloses a bend pipe fitting. The bend pipe fitting comprises a bend body. Annular grooves are formed in the inner side walls of two connectors of the bend body, connecting sleeve bodies are inserted into the end of the bend body in a sleeved manner, the exteriors of the connecting sleeve bodies are inserted into the corresponding annular grooves in a sleeved manner, the outer side walls of the connecting sleeve bodies abut against the inner side walls of the annular grooves in a pressed manner, and internal threads are arranged on the inner side walls of the connecting sleeve bodies. Multiple screw joint through holes are formed in the outer side walls of the connectors of the bend body, the screw joint through holes correspond to positioning concave holes formed in the outer side walls of the connecting sleeve bodies, positioning blocks are in screw joint with the interiors of the screw joint through holes, convex parts are arranged at the ends of the positioning blocks, and the convex parts are inserted into the corresponding positioning concave holes in a sleeved manner. The bend body and the connecting sleeve bodies are connected in a positioning manner, when the connecting sleeve bodies are in screw loose, it is only needed to replace the connecting sleeve bodies, the cost is reduced, and the effect is good.
Owner:湖州高锐工贸有限公司
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