42results about How to "Low technical transformation cost" patented technology

The invention discloses a high-strength cast aluminium-silicon alloy reinforced via cryogenic treatment, and a preparation method thereof, and belongs to the technical field of aluminium-silicon alloy. The invention also discloses chemical composition of the high-strength cast aluminium-silicon alloy reinforced via cryogenic treatment. The preparation method comprises steps of chemical composition controlling, melting process controlling, casting technology controlling, and cryogenic treatment. The step of cryogenic treatment comprises following steps: solution treatment is carried out for 5 to 6h at 470 to 490 DEG C, and then quenching in hot water of 60 to 90 DEG C is carried out; cryogenic thermal insulation is carried out for 24h at -145 to -165 DEG C, and the temperature of an obtained product is increased to room temperature in the air; aging treatment is carried out for 5 to 6h at 170 to 180 DEG C, and the processed product is cooled to room temperature in the air so as to obtain the high-strength cast aluminium-silicon alloy reinforced via cryogenic treatment. According to the preparation method, cryogenic treatment is capable of increasing solubility of alloy elements in cast aluminium-silicon alloy greatly, and more fine strengthening phases are formed by a plurality of added alloy elements, so that the mechanical properties of the high-strength cast aluminium-silicon alloy are much better than that of other cast aluminium-silicon alloy.

The invention belongs to the field of energy storage, and discloses a mixed gas separation, mass storage, pressure rise and energy storage device and a method and a utility system, and a heat exchange pressure equalizer. The separation of mixed gas, the pressure rise, the energy storage, the heat exchange and the conversion of gas and liquid are finished in one device, so that the equipment is simplified, the efficiency is improved, and the heat energy is reduced; the cold energy is lost; the energy storage and the energy release can be separately or synchronously performed, so that the emission of carbon dioxide is reduced; and a nitrogen oxide, a sulfur oxide, heavy metal [pm 2.5] and the like are collected for storage and utilization to change harmful substances to useful substances. The invention discloses a gas (air and smoke) condensation, separation and energy storage power station, a wind-electricity plant air separation and energy storage power station, a photovoltaic power generation plant air separation and energy storage power station, a solar heat power air energy storage power station, a wind-electricity solar heat power complementary air energy storage power station, a nuclear power air separation and energy storage power station, a ire coal combustion biomass power generation plane smoke separation and energy storage power station, a gas power generation smoke separation and energy storage power station and an industrial kiln smoke separation and energy storage power station.

The invention relates to a steel strand inhaul cable filled or coated with a polyurea protective material. The steel strand inhaul cable comprises series steel strand inhaul cable bodies including the steel strand inhaul cable body Ia formed in a manner that gaps between n steel strands are filled with the polyurea protective material, the steel strand inhaul cable body Ib formed in a manner that the outer layer of the steel strand inhaul cable body Ia is coated with a polyurea protective coating and the like. A manufacturing method includes the steps that the n steel strands are pretreated, dried and filled with the polyurea protective material, a steel strand combination is molded through coalescence, and the steel strand inhaul cable body Ia filled or coated with the polyurea protective material is formed; and the series steel strand inhaul cable which has multiple protective functions is manufactured by the steel strand inhaul cable body Ia through one or more of the polyurea material coating process I, the wrapping and packaging process, the polyurea material coating process II and III, the extrusion molding process and the like. The method is simple and convenient; the manufactured steel strand inhaul cable is good in tension-resisting strength and flexibility, high in damping and good in ageing resistance, wear resistance and damping performance; the corrosion prevention capacity of the steel strand inhaul cable can be greatly improved, and the service life of the steel strand inhaul cable can be prolonged; and the n is larger than or equal to 1.

The invention discloses a preparation method of sulfur-containing heavy calcium. The preparation method comprises carrying out wet grinding on phosphate rock and elemental sulfur particles, conveying the ground product into a ceramic filter or a thickener, removing a part of water, conveying the materials into a slurry process-based heavy calcium production device, feeding phosphoric acid into the device, carrying out reaction preparation, carrying out granulation and carrying out drying to obtain a finished product. The preparation method utilizes the existing phosphate rock wet grinding device and the heavy calcium production device to produce fertilizer containing two or more nutrients such as phosphor and sulfur, does not change the original technology route and provides a low-cost product up-gradation method for the traditional device. The product contains uniform elemental sulfur, greatly reduces material returning frequency and reduces dust explosion possibility.

The invention provides a low-current grounding fault manual discrimination line selection system of a power system and relates to a transformer substation outgoing line grounding fault searching method. The low-current grounding fault manual discrimination line selection system is characterized in that scheduling and monitoring personnel make a comparison according to grounding fault signals and zero-sequence current changing curves of incoming and outgoing lines in a monitoring interface and zero-sequence current value changes, and which incoming and outgoing lines have grounding fault is judged comprehensively through manual work. The method is suitable for county and municipal level power systems, wherein in the county and municipal level power systems, regulating and controlling integration systems are built, unattended operation of transformer substations is achieved, and all incoming and outgoing lines of the transformer substations can collect that 10-35kV neutral points of a zero-sequence current are not in ground connection and are connected with the ground through arc suppression coils and achieve high-resistance ground connection in a county and municipal level power system.

The invention discloses a breaker energy storage spring abnormal state assessment system. The system comprises a mechanical sensor, a data collection module, a remote telemetry alarm module, a database module and a background monitoring module, wherein the mechanical sensor is used for measuring a stress value of an energy storage spring in real time; the data collection module is used for converting stress value data of the energy storage spring into analog signal data; the remote telemetry alarm module is used for generating an abnormal state early-warning signal according to the stress value data and a preset stress threshold and sending the stress value data and the abnormal state early-warning signal, which are obtained through conversion by the data collection module, to the background monitoring module through an equipment control system of a substation; the database module is used for storing the stress value data received by the background monitoring module; and the backgroundmonitoring module is used for assessing the residual life of the energy storage spring when the abnormal state early-warning frequency is greater than a preset frequency threshold. Through the system, an existing communication circuit can be fully utilized to achieve the monitoring alarm function on a site by a background, the fault identification rate of the energy storage spring is increased, and a risk caused by a breaker accident to power grid safety is avoided.

The invention discloses a wind generating set inhaul cable type steel cylinder tower. The wind generating set inhaul cable type steel cylinder tower comprises a tower cylinder section, and is characterized by further comprising tower cylinder transition sections, an inhaul cable flange and an inhaul cable; tower cylinder transition section flanges are arranged at the two ends of each tower cylinder transition section, and flange bolt holes are formed in the tower cylinder transition section flanges; the inhaul cable flange is provided with an inhaul cable flange bolt hole, and the outer wall of the inhaul cable flange is provided with an inhaul cable flange lug plate; the inhaul cable flange is located between the two tower cylinder transition sections, and a flange connecting bolt penetrates through the flange bolt hole and the inhaul cable flange bolt hole to connect the two tower cylinder transition sections and the inhaul cable flange together; and the tower cylinder section is connected with the outer side ends of the two tower cylinder transition sections, one end of the inhaul cable is connected with the inhaul cable flange lug plate, and the other end of the inhaul cable isconnected with a ground anchoring point. The invention further discloses a steel cylinder replacing method of the wind generating set inhaul cable type steel cylinder tower. According to the wind generating set inhaul cable type steel cylinder tower and the steel cylinder replacing method, the stress path of the steel cylinder tower can be reasonably distributed, and the stress performance of thetower and joints is improved.

The invention discloses an adjustment device for reducing exhaust back pressure of an internal combustion engine, which is suitable for being applied to various different forms of internal combustion engines in internal combustion engine classification. The core technology is that an adjustment device, which is formed by an ejector, a water ring vacuum pump and a water cooling box alone or in combination and used for reducing the exhaust back pressure of the internal combustion engine, is serially connected behind an outlet of an exhaust pipe of the internal combustion engine or at a turbine wheel combustion gas flow outlet in a supercharger of a turbocharged internal combustion engine, so that an exhaust back pressure value of the internal combustion engine can be greatly reduced and adjusted, and power, economic and exhaust performance indexes of an internal combustion engine device are effectively improved. The adjustment device disclosed by the invention has the advantages of mature technology, simple structure, safe and reliable use, great adjustment strength and good effect.

The invention relates to a steel strand inhaul cable with a polyurea protective material on an outer layer. The steel strand inhaul cable comprises a steel strand combination formed by n steel strands, the outer layer of the steel strand combination formed by the n steel strands is coated with a polyurea protective coating I to form a steel strand inhaul cable body Ia with the polyurea protective material, and the outer layer of a wrapping and packaging belt of the steel strand inhaul cable body Ia is coated with a polyurea protective coating II to form a steel strand inhaul cable body Ia0b. A manufacturing method of the steel strand inhaul cable includes the steps that a series steel strand inhaul cable which has multiple protective functions is manufactured through one or more of the polyurea material coating process I, the wrapping and packaging process, the polyurea material coating process II, the extrusion molding process, the polyurea material coating process III and the like of the steel strand combination obtained after the steps of pretreatment, drying and coalescence molding. The method is simple and convenient; the manufactured steel strand inhaul cable is good in tension-resisting strength and flexibility, high in damping and good in ageing resistance, wear resistance and damping performance; the corrosion prevention capacity of the steel strand inhaul cable can be greatly improved, and the service life of the steel strand inhaul cable can be prolonged; and the n is larger than or equal to 1.

The invention relates to a preparation method of a strippable ultrathin carrier copper foil, and provides a key material for a 5G communication high-frequency and high-speed printed circuit board. According to the strippable ultrathin carrier copper foil, the 18-micron carrier copper foil, the dip-plated metal layer, the organic barrier layer, the stripping layer, the ultrathin copper foil layer and the coarsening layer are sequentially arranged, the dip-plated metal layer can reduce equipotential points of a copper surface, the binding force of the carrier copper foil and the organic layer is enhanced, and the requirement for anti-stripping strength is met; the organic layer and the metal layer are jointly used as a stripping layer, so that the problems that a single organic layer easily causes poor conductivity and non-uniform thickness during electro-deposition of an ultrathin copper foil layer and is easily separated from a carrier before use can be solved. The thickness of the ultrathin carrier copper foil prepared by the method is about 5 microns, the ultrathin carrier copper foil can be successfully stripped, and no copper powder or stripping layer is left on the surface of the ultrathin carrier copper foil.

The invention relates to a composite structure plate of recombination bamboo wood and a medium-density fiberboard and a manufacture method thereof. The composite structure plate is composed of at least one layer of recombination bamboo wood and at least one layer of medium density fiberboard, and the thickness of the composite structure plate is 7-90 mm. The manufacture method includes the following steps: coating weather resistance glue on the recombination bamboo wood and the medium-density fiberboard, and coating the weather resistant glue on a contact face or coating the weather resistance glue on one lateral surface of the contact face; assembling the recombination bamboo wood and the medium-density fiberboard with the weather resistance glue to obtain a plate blank; and cold pressing, maintaining pressure, relieving pressure and preserving the plate blank to obtain the composite structure plate of the recombination bamboo wood and the medium-density fiberboard. The composite structure plate has good structure performance and is capable of conducting continuous production, simple in process, high in production efficiency, stable and reliable in product performance, remarkable in cost advantage, energy-saving, environment-friendly and suitable for various use purposes.

The embodiment of the invention discloses a meteorological radar transmitter fault detection system and method. A high-voltage power supply filtering voltage stabilizer Z1 in a front-end high-voltagepower supply line of a transmitter is subjected to fault detection circuit design, so that an abnormal operation state of the high-voltage power supply filtering voltage stabilizer Z1 can be timely and effectively detected; when the high-voltage power supply filtering voltage stabilizer Z1 has a fault, a worker can be helped to rapidly and accurately position a fault unit and timely eliminate thefault, so as to improve the intelligent fault detection diagnosis capacity and the fault warning information positioning capacity of a meteorological radar transmitter system; and a standby K7 relay in an original relay switching group in the line is utilized to carry out operation state monitoring on the high-voltage power supply filtering voltage stabilizer Z1, so as to implement state monitoring on the high-voltage power supply filtering voltage stabilizer Z1 and linkage of control of the transmitter system, reduce improvement complexity on the front-end power supply line, improve improvement feasibility and greatly reduce technical transformation cost.

The invention discloses an isomorphic system and platform system of a heterogeneous control system. A system structure and an IO database module encapsulate different equipment models into configuration elements to form a standard element library so as to complete system structure configuration and IO database configuration; a control configuration module can package various different control algorithms into a control configuration element; core modules are installed on all control stations of the heterogeneous control system, operate control configuration elements, and unify the control systems of all the control stations to the same software platform; a man-machine interaction module provides a man-machine configuration element integrated with multiple control algorithms, and the development and application of a man-machine interaction interface are completed through parameter configuration. Various control systems are integrated on the same platform, standard control algorithm configuration is executed, stable transition of industrial equipment system upgrading can be achieved, the production and operation efficiency is improved, and the enterprise technical improvement cost isreduced.

The valve limiting indication structure comprises an upper cover and a main body connected with the upper cover, a driving rod is arranged in the main body, the lower end of the driving rod penetrates through the lower end of the main body, an upper cam and a lower cam are fixedly arranged on the driving rod, and the arrangement positions of the cams correspond to two microswitches on the main body; the driving rod is connected with a torsion spring structure which is used for preventing impact force generated by quick action from possibly damaging the switch. Through the arrangement of the torsion spring structure, the switch can be prevented from being damaged by impact force generated by quick action, the problem that switching of contacts is unstable when the operation speed is extremely low can also be avoided, the technical improvement degree is low, the technical improvement cost is low, two needed functions are achieved through one technical improvement point, and the design is ingenious.